Abstract

A mining vehicle for mining cobalt-rich crusts ore from the seabed includes a walking mechanism; a supporting arm, a crushing and collecting mechanism and a hydraulic circulation mechanism. The supporting arm is set on the walking mechanism, and a rotating structure is set at the connection between the supporting arm and the walking mechanism for realizing left-right rotation of the supporting arm; at the same time, the supporting arm can be realized to rotate up and down. The crushing and collecting mechanism is set at the front end of the hydraulic circulating mechanism for crushing the ores. The hydraulic circulating mechanism is set on the supporting arm and the walking mechanism, for collecting the ores, and for promoting flocculation and precipitation of the sediments, and for reducing the degree of particle diffusion.

IPC Classes  ?

• E21C 50/00 - Obtaining minerals from underwater, not otherwise provided for
• E21C 25/10 - RodsDrums

Abstract

A method for high-precision prediction of shelf-life of aquatic products under a variable temperature environment includes: constructing and training a deep learning-based Facformer model for shelf-life prediction; obtaining aquatic products to be predicted; determining the temperature, TPC (Total Plate Count), and the TVB-N(Total Volatile Base-Nitrogen) of the aquatic products in a consecutive p-day period; recording the temperature data of the aquatic products in a period of days p to q, and importing the temperature in a period of consecutive p days, the TPC, and the TVB-N, and the temperature data within p to q days were imported into a pre-trained Facformer model for inference to obtain the predicted values of TPC, TVB-N, and shelf-life of aquatic products under variable temperature environment.

IPC Classes  ?

• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
• G01N 33/12 - MeatFish

Abstract

The present invention belongs to the field of chemistry and chemical engineering, and disclosed are a type of Si-O-Si framework bridged multi-nuclear boron catalyst, a preparation method therefor, and a use thereof. The Si-O-Si framework of the Si-O-Si framework bridged multi-nuclear boron catalyst can be a linear structure of Si-O-Si, a ring structure of Si-O-Si, or a cage structure of Si-O-Si. The feasibility of multiple types of topological structures provides controllability for the synthesis of multi-nuclear boron. The multiple Lewis acid centers of this type of system can better activate monomers and stabilize active species, reflecting the synergistic effect of multiple boron centers. The multi-nuclear boron catalyst of the present invention is mainly used in ring-opening polymerization and copolymerization to prepare diverse low-carbon polymers, such as polyethers, polyesters, polycarbonates, etc.

IPC Classes  ?

• C08G 77/398 - Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon containing boron or metal atoms
• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
• C08G 63/84 - Boron, aluminium, gallium, indium, thallium, rare earth metals, or compounds thereof
• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides

Abstract

The reusable SERS molecular test device includes two glass sheets, wherein a noble metal nano film is deposited on the surface of one of the glass sheets to form an SERS substrate, a metal ring is formed by depositing on an edge region of the SERS substrate by means of a coating process, and the metal ring fits with the SERS substrate to form a two-dimensional air chamber; and the other glass sheet, on which molecules under test are adsorbed and immobilized, is placed upside down on the metal ring, the thickness of the layer of the molecules under test being not greater than the thickness of the metal ring. The SERS molecular test device can fundamentally prevent the SERS substrate from being irreversibly contaminated by the molecules under test, so that the SERS substrate can be used in a cleaning-free and reusable manner.

IPC Classes  ?

• G01N 21/65 - Raman scattering

Abstract

The present invention relates to the technical field of bionic covert underwater acoustic communication, and specifically relates to a feature extraction-based imitated marine mammal sound signal covertness scoring method. The scoring method combines feature engineering to extract six universal features of a marine mammal sound signal from the perspective of human hearing and a signal waveform, and uses these features to obtain a second bionic signal covertness score through a weight coefficient formula. The covertness scoring method can characterize intrinsic information of the bionic signal in more detail from more perspectives of the signal to more accurately evaluate a difference between the bionic signal and a real signal, and the obtained score value can more intuitively describe the quality of the bionic signal covertness.

IPC Classes  ?

• G10L 25/60 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
• G10L 17/02 - Preprocessing operations, e.g. segment selectionPattern representation or modelling, e.g. based on linear discriminant analysis [LDA] or principal componentsFeature selection or extraction
• G10L 17/26 - Recognition of special voice characteristics, e.g. for use in lie detectorsRecognition of animal voices
• G10L 25/24 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being the cepstrum
• H04B 13/02 - Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy

Abstract

Disclosed in the present invention are a heterogeneous bimetallic platinum catalyst and a use thereof in synthesis of γ-chloropropyltrichlorosilane (γ1). In the present invention, an anthracene skeleton is introduced, a novel bimetallic platinum metal catalyst is synthesized by means of coordination with platinum, and the bimetallic platinum metal catalyst is loaded into high vinyl polybutadiene by means of a Diels-Alder (DA) reaction to prepare the heterogeneous bimetallic platinum catalyst. The novel heterogeneous bimetal platinum catalyst has a synergistic catalytic effect, and high-efficiency and high-selectivity hydrosilylation reaction of non-chloropropene and trichlorosilane is realized. The heterogeneous bimetallic catalyst reported by the present invention has the characteristics of high catalytic efficiency, high selectivity and recyclability, the purity of γ1 reaches 99.5%, and the product yield is as high as 97%.

IPC Classes  ?

• B01J 31/22 - Organic complexes
• C07F 7/14 - Preparation thereof from halogenated silanes and hydrocarbons

Abstract

Disclosed are an iron-based catalyst and its application catalytic diene polymerization. The iron-based catalyst provided by the present application includes iron-containing organic compounds, alkyl aluminum compounds and isocyanide-containing organic compounds, and the molar ratio between the iron element of the iron-containing organic compounds, the alkyl aluminum compounds and the isocyanide-containing organic compounds is 1:(5˜100):(0.5˜100). The iron-based catalyst system of the present application can initiate polymerization of diene with high activity at high temperature by using isocyanide-containing organic compounds as an electron donor and alkyl aluminum compounds as a co-catalyst.

IPC Classes  ?

• C08F 4/80 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from metals not provided for in group selected from iron group metals or platinum group metals
• C08F 2/06 - Organic solvent
• C08F 6/10 - Removal of volatile materials, e.g. monomers, solvents
• C08F 36/06 - Butadiene
• C08F 36/08 - Isoprene

Abstract

Disclosed is a method of adjusting the molecular weight of syndiotactic 1,2-polybutadiene prepared using an iron-based catalyst. In the present application, when an iron-based catalyst catalyzes the polymerization of butadiene to prepare syndiotactic 1,2-polybutadiene, alpha-olefins are added as a molecular weight regulator, and a chain transfer effect is achieved through competitive adsorption. At the same time, since alpha-olefins are stable to iron-based catalysts, cannot be initiated to polymerize, and are easy to separate from butadiene, they have a significant effect on molecular weight regulation and do not have a significant effect on activity, making it possible to prepare syndiotactic 1,2-polybutadiene thermoplastic elastomers with number average molecular weights ranging from 3,000-250,000. The syndiotactic 1,2-polybutadiene rubber prepared by the present application has better processability. The present application has the advantages of low attenuation of iron-based catalyst activity, a broad range of molecular weight adjustment and facile butadiene separation.

IPC Classes  ?

• C08F 236/06 - Butadiene

Abstract

This disclosure belongs to the field of organic silicon polymer material preparation, particularly relating to a continuous production device for organophosphorus nitrile-catalyzed high-molecular-weight polysiloxane. It includes a reaction device with a horizontal configuration and dual-axis stirring, where the diameters of the dual axes decrease gradually from the feed port to the discharge outlet, and the corresponding nominal diameters of the paddles increase gradually from the feed port to the discharge outlet. The stirring shaft and paddles are hollow and can be externally heated or cooled. The dual-axis engagement provides mass transfer, heat transfer, and axial propelling force. This reaction device exhibits excellent mass transfer and heat transfer effects, resulting in uniform products with narrow molecular weight distribution and low volatile content. It is particularly suitable for the continuous production of high-viscosity, high-molecular-weight polysiloxanes catalyzed by organophosphorus nitrile. This production device can be adapted to various traditional chemical reaction equipment.

IPC Classes  ?

• B01J 19/20 - Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01J 19/06 - Solidifying liquids
• C08G 77/08 - Preparatory processes characterised by the catalysts used

Abstract

Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.

IPC Classes  ?

• C08L 23/22 - Copolymers of isobuteneButyl rubberHomopolymers or copolymers of other iso-olefins
• C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used
• C08F 2/06 - Organic solvent
• C08F 4/659 - Component covered by group containing a transition metal-carbon bond
• C08F 210/08 - Butenes

Abstract

Disclosed in the present invention is a visual old-age care system based on a blockchain and intelligent human body feature recognition. The system comprises a cloud server, a smart watch and a management terminal, wherein the cloud server is in communication with the smart watch and the management terminal, the smart watch is worn by an old-age user, and the management terminal comprises a PC end, a mobile end and a display screen. By means of the visual old-age care system based on a blockchain and intelligent human body feature recognition provided in the present invention, identity authentication can be effectively implemented in a timely manner, and a wearable device can be efficiently used for a long period of time.

IPC Classes  ?

• G16H 80/00 - ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring

Abstract

A blockchain-based and human characteristics intelligence recognition for appointment-based elderly care system includes a cloud server, a smartwatch and a management terminal, the cloud server is connected to the smartwatch and the management terminal, the smartwatch is worn on the elderly user, the management terminal includes a PC terminal, a mobile terminal and a display screen; the invention provides effective first time identification and can use the wearing device efficiently for a long time based on blockchain.

IPC Classes  ?

• G16H 40/20 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• G04C 10/00 - Arrangements of electric power supplies in time-pieces
• G04G 21/04 - Input or output devices integrated in time-pieces using radio waves
• G06V 10/24 - Aligning, centring, orientation detection or correction of the image
• G06V 10/30 - Noise filtering
• G06V 10/36 - Applying a local operator, i.e. means to operate on image points situated in the vicinity of a given pointNon-linear local filtering operations, e.g. median filtering
• G06V 20/40 - ScenesScene-specific elements in video content
• G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
• G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation

Abstract

The present invention belongs to the technical field of synthetic materials, specifically a thermoplastic special engineering plastic PPS/PI alloy material and preparation method thereof, ingredients of the alloy material include: PPS 75-85 parts, PI 10-20 part, activated alumina 10-15 parts, polyfluortetraethylene 0.2-0.5 part; the activated alumina is prepared with aluminum oxide and epoxy-containing silane coupling agents; a preparation method of the alloy material is: mixing the PPS, the PI, the activated alumina and the polyfluortetraethylene at an atmospheric temperature high-speed mixer, extruding and pelletizing the same with a twin-screw extruder and the thermoplastic special engineering plastic PPS/PI alloy material can be obtained. The alloy material has improved wear resistance performance, good high temperature resistance properties, can be used repeatedly and is a kind of environmental-friendly material.

IPC Classes  ?

• C08L 81/02 - PolythioethersPolythioether-ethers

Abstract

Disclosed in the present invention are a reusable SERS (Surface Enhanced Raman Scattering) molecular test device and a method using same. The reusable SERS molecular test device comprises two glass sheets, wherein a noble metal nano film is deposited on the surface of one of the glass sheets to form an SERS substrate, a metal ring is formed by depositing on an edge region of the SERS substrate by means of a coating process, and the metal ring fits with the SERS substrate to form a two-dimensional air chamber; and the other glass sheet, on which molecules under test are adsorbed and immobilized, is placed upside down on the metal ring, the thickness of the layer of the molecules under test being not greater than the thickness of the metal ring. The SERS molecular test device of the present invention can fundamentally prevent the SERS substrate from being irreversibly contaminated by the molecules under test, so that the SERS substrate can be used in a cleaning-free and reusable manner, thereby greatly reducing the usage cost, and provides transformational technology for the practicability of the SERS substrate.

IPC Classes  ?

• G01N 21/65 - Raman scattering
• C23C 14/30 - Vacuum evaporation by wave energy or particle radiation by electron bombardment
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• C23C 14/24 - Vacuum evaporation
• C23C 14/04 - Coating on selected surface areas, e.g. using masks
• C23C 14/18 - Metallic material, boron or silicon on other inorganic substrates

Abstract

The present invention belongs to the field of preparation of organic silicon polymer materials, and particularly relates to an anionic ring-opening continuous polymerization process for cyclosiloxane. The process mainly comprises: allowing reaction materials to enter a heatable polymerization reactor of an externally connected vacuum device by means of a feeding pump; controlling the amount of a catalyst, the amount of an end-capping agent, and the polymerization reaction time according to a flow rate of the materials; selecting a polymerization reaction temperature according to the ring-opening reaction activity of a monomer; adjusting the vacuum degree according to the viscosity of polymerization reaction materials; and continuously discharging to obtain high-molecular-weight polysiloxane. The monomer in the present invention has a high conversion rate, which facilitates a subsequent small-molecule removal step and enables significant energy conservation and consumption reduction. The polymerization process is simple, in which steps of dehydration and purification as well as neutralization of the monomer are omitted, meanwhile, the equipment investment is small, which makes the process suitable for large-scale continuous production. The high-molecular-weight polysiloxane prepared by the present invention can be used as raw rubber of high-temperature vulcanized silicone rubber and can be applied to the fields of electronics, chemical engineering, metallurgy, architecture, aerospace, aviation, medical materials, and the like.

IPC Classes  ?

• C08G 77/08 - Preparatory processes characterised by the catalysts used
• C08G 77/20 - Polysiloxanes containing silicon bound to unsaturated aliphatic groups
• C08G 77/24 - Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen halogen-containing groups

Abstract

The present invention belongs to the field of preparation of organic silicon polymer materials, and particularly relates to a device for continuous production of high-molecular-weight polysiloxane catalyzed by organophosphorus nitrile. The device comprises a horizontal reaction device having two shafts for stirring, wherein the diameters of the two shafts are gradually reduced from a feeding port to a discharging port, the nominal diameters of corresponding blades are gradually increased from the feeding port to the discharging port, the stirring shafts and the blades are hollow, and heating or cooling media can be additionally arranged, such that mass transfer, heat transfer and an axial pushing force can be provided by means of double-shaft meshing. The reaction device has the excellent effects of mass transfer and heat transfer, the obtained product is uniform, the molecular weight distribution is narrow, the volatile component content is low, and the device is particularly suitable for continuous production of high-viscosity and high-molecular-weight polysiloxane catalyzed by organophosphorus nitrile. The production device can match with various traditional chemical reaction apparatuses for extrusion, ash removal, neutralization, drying, granulation, etc., has high universality and is easy to popularize.

IPC Classes  ?

• B01J 19/18 - Stationary reactors having moving elements inside
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• C08G 77/08 - Preparatory processes characterised by the catalysts used

Abstract

Disclosed is a device for twisting electrostatic spinning superfine fiber. The device comprises an outer sleeve and a middle sleeve, wherein the outer sleeve sleeves the middle sleeve, an annular gap is formed between the outer sleeve and the middle sleeve, a melt inlet communicating with the annular gap is formed in the outer sleeve, a conical hole is formed in the bottom end of the outer sleeve, the top end of the conical hole communicates with the bottom end of the annular gap, and the outer sleeve is wrapped with a heating ring used for heating a melt in the annular gap; a cylindrical metal rod is arranged in the middle sleeve in a penetrating mode, an interval is formed between the metal rod and the middle sleeve, the bottom end of the metal rod is fixedly connected with a circular truncated cone located below the conical hole.

IPC Classes  ?

• D01H 1/08 - Spinning or twisting machines in which the product is wound-up continuously cup, pot, or disc type, in which annular masses of yarn are formed by centrifugal action
• D01D 5/00 - Formation of filaments, threads, or the like
• D01H 1/26 - Driving or stopping arrangements for twisting arrangements, e.g. spindles with two or more speedsDriving or stopping arrangements for twisting arrangements, e.g. spindles with variable-speed arrangements

Abstract

A high-temperature-blasting-resistant polybutylene alloy material and a preparation method therefor. The polybutylene alloy material comprises, in parts by mass, 1-40% of an isotactic polypropylene, 0.1-10% of a polypropylene-polybutylene block copolymer, 35-95.9% of an isotactic polybutylene having a medium molecular weight and 3-15% of an isotactic polybutylene having a high molecular weight. The alloy material is prepared by using a segmented polymerization method comprising propylene polymerization, high-hydrogen-consumption butene polymerization and low-hydrogen-consumption butene polymerization. The prepared polybutylene alloy material has good high-temperature blasting resistance and high-temperature hydrostatic pressure and a high vicat softening temperature, and is suitable for pressure pipelines.

IPC Classes  ?

• C08L 23/20 - Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
• C08L 23/12 - Polypropene

Abstract

A process and a device for continuous flow side-chain alkylation which relate to the technical field of organic synthesis. In this process and the device for continuous flow side-chain alkylation, an ibuprofen raw material is prepared with alkylbenzene as a raw material. This raw material alkylbenzene is easily available and has a low cost, and is suitable for scale-up production. Moreover, an entire preparation process adopts continuous chemical synthesis, and a reaction time of each stage can be precisely controlled, which is beneficial to control a total reaction time and reduce an amount of impurities produced. In this way, a purity and a yield of the ibuprofen raw material are improved. In summary, a continuous synthesis method for side-chain alkylation of alkylbenzene provided by the present disclosure shows a low cost and a high yield.

IPC Classes  ?

• C07C 2/54 - Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons, or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
• B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
• B01J 8/08 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with moving particles

Abstract

The present disclosure belongs to the technical field of chemical separation and purification, and in particular relates to a purification method and device for continuous distillation and separation of an ibuprofen intermediate raw material. The purification method comprises the following steps: carrying out a primary distillation on synthetic liquid to obtain a primary material and recovered 4-methyl-1-pentene, then carrying out a second-stage distillation on the primary material to obtain a second-stage material and a recovered crude toluene product; and carrying out a third-stage distillation on the second-stage material to obtain isobutyl benzene and a recovered crude n-butylbenzene product. Embodiment results show that the purification method provided by the present disclosure is high in product recovery rate and high in product purity, the purity of isobutyl benzene is up to 99.99 wt %, the recovery rate is up to 99.9 wt %, the impurity content is not higher than 50 ppm.

IPC Classes  ?

• C07C 7/04 - Purification, separation or stabilisation of hydrocarbonsUse of additives by distillation
• C07C 15/06 - Toluene
• C07C 15/02 - Monocyclic hydrocarbons

Abstract

The present disclosure provides an active zinc-based catalyst and a preparation method thereof, and use in catalyzing a rearrangement reaction of ibuprofen. The active zinc-based catalyst includes a carbon-based fiber material and nano-zinc oxide supported on a fiber surface of the carbon-based fiber material. The active zinc-based catalyst is introduced with the carbon-based fiber material, and the carbon-based fiber material is capable of increasing a specific surface area of the catalyst, thereby improving a dispersion degree of zinc oxide, increasing the number of catalytic active sites, and significantly improving a catalytic activity. Meanwhile, due to a certain mechanical strength, the carbon-based fiber material is capable of improving a mechanical strength of the catalyst, making the catalyst exist stably in ketal fluid, maintaining a stable morphology of the catalyst, and avoiding or inhibiting reduction of the catalytic active sites, thereby ensuring a catalytic stability.

IPC Classes  ?

• B01J 23/06 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of zinc, cadmium or mercury
• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/08 - Heat treatment
• B01J 37/10 - Heat treatment in the presence of water, e.g. steam
• B01J 35/06 - Fabrics or filaments
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• C07C 51/347 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups
• B01J 35/02 - Solids

Abstract

For the defects that manual adhesive tape pasting is low in efficiency and high in cost, and it is difficult to automatically paste adhesive tapes at specified positions of inner and outer surfaces of an item according to a certain length through a handheld box sealer and an adhesive tape seal pasting mechanism, a cantilever type plane automatic adhesive tape pasting device is invented. A liftable two-stage telescopic cantilever adhesive tape pasting head structure, a roller type automatic adhesive tape feeding structure, an adjustable fixed-length cutting structure and a roller type pasting structure are adopted for the device to achieve the automatic adhesive tape pasting on inner and outer side planes of an item. After the item needing adhesive tape pasting is positioned, the pasting process is completely automatically conducted without manual participation, the labor intensity is reduced, the labor efficiency is improved.

IPC Classes  ?

• B65H 35/00 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
• B65B 51/06 - Applying adhesive tape

Abstract

The present invention relates to a transfer trolley for a nuclear magnetic resonance room. The transfer trolley comprises a trolley body mechanism and a moving mechanism; the moving mechanism is mounted at the lower end of the trolley body mechanism; the trolley body mechanism mainly comprises a trolley frame, a carrying plate, and a transmission mechanism; the trolley frame mainly comprises an upper trolley frame and a lower trolley frame; the carrying plate mainly comprises an upper carrying plate, a middle partitioning plate, and a lower carrying plate; and the transmission mechanism is a gear transmission system having multi-combination output and is driven by manual hand cranking to drive the carrying plate to transversely move to transfer a patient. The present invention has the following advantages: the whole trolley is made of non-magnetic materials and can be used as a transfer trolley special for nuclear magnetism; the trolley frame is compact in structure, has few parts, is provided with a plurality of tenon-and-mortise structures, is convenient to mount quickly, and is high in bearing capacity; the gear transmission system is free from the constraint of electric power, labor can be greatly saved, and the labor intensity of nursing staff is reduced; and the carrying plate is of a unique three-plate two-cloth structure, high comfort is provided for patients, and the maximum safety performance is provided.

IPC Classes  ?

• A61G 7/14 - Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto facilitating both lifting and lateral movement of the patient or disabled person
• A61G 7/10 - Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
• A61G 1/02 - Stretchers with wheels

Abstract

A preparation method of bimetallic catalysts based on anthracene frameworks and use thereof in olefin polymerization is reported. Anthrecene frameworks were introduced, heat resistance of the catalysts is improved, and by changing central metals and configurations of the frameworks, steric and electronic effects of the metal catalysts of this model can be adjusted and controlled conveniently, and polyolefin polymer materials of different structures and different properties can be prepared, the bimetallic catalyst can be used in ethylene homopolymerization for preparation of high density polyethylene, ethylene/1-octene copolymerization for preparation of polyolefin elastomers and ethylene/norbornene copolymerization for preparation of cycloolefin copolymers. The bimetallic catalyst based on anthracene frameworks can be used in olefin high temperature solution polymerization for preparing polyolefin elastomers and cycloolefin copolymers, the polyolefin elastomers obtained have molecular weights as high as MW=890 kg·mol−1, and the cycloolefin copolymers have copolymerization monomer insertion rates as high as 45 mol %.

IPC Classes  ?

• C08F 10/02 - Ethene
• C08F 4/64 - Titanium, zirconium, hafnium, or compounds thereof
• C07F 7/28 - Titanium compounds
• C07F 7/00 - Compounds containing elements of Groups 4 or 14 of the Periodic Table

Abstract

Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypohalite; leaving to stand for layering; and performing centrifugation and washing on a lower-layer slurry to obtain a stably dispersed pyrolysis carbon black/water suspension. This modification method can be operated simply and easily; and by means of the method, ash in pyrolysis carbon black of waste tires can be effectively removed, and the pyrolysis carbon black is then stably dispersed in water. In addition, the modification method is low in production cost, and is green and environmentally friendly, and a waste liquid thereof can be recycled.

IPC Classes  ?

• C09C 1/56 - Treatment of carbon black
• C09C 1/48 - Carbon black

Abstract

The present invention relates to a printing device and a printing method. The combination mode between materials in an additive manufacturing process is improved. A calculation unit is used for controlling an A pole unit and a B pole unit to be in contact with the materials, to form an energized circuit. The surface temperature of phase change material in the material between the A pole unit and the B pole unit is greater than or equal to a preset temperature so that the materials at a distance can be simultaneously combined.

IPC Classes  ?

• B33Y 10/00 - Processes of additive manufacturing
• B29C 64/10 - Processes of additive manufacturing
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials

Abstract

Disclosed in the present invention are the preparation and application of a mesoporous filler compounded gel polymer electrolyte. In the present invention, silicon dioxide nanoparticles having special mesoporous structures are designed, and same are compounded with a gel polymer electrolyte to prepare a mesoporous filler compounded gel polymer electrolyte; in addition, a high mechanical strength and a good electrochemical stability are maintained. Compared with blank sample and solid silicon dioxide nanoparticle compounded electrolytes, the mesoporous filler compounded gel polymer electrolyte disclosed in the present invention has a higher liquid absorption amount and ionic conductivity, and also has a higher lithium ion mobility. Due to the good compatibility between a mesoporous filler and lithium metal, a stable SEI layer can be generated. In addition, a lithium metal battery assembled by the mesoporous filler compounded gel polymer electrolyte exhibits a good cycle performance.

IPC Classes  ?

• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type

Abstract

A gel composite film, a preparation method therefor, and a use thereof. The gel composite film comprises a porous polymer membrane and a hydrophilic gel that is filled in pores of the porous polymer membrane. The porous polymer membrane has a highly interpenetrating open-type pore structure, the hydrophilic gel fills pores of the porous polymer membrane to effectively block carbon dioxide; meanwhile, the hydrophilicity of the hydrophilic gel can ensure the dissolution and transportation of water molecules.

IPC Classes  ?

• B01D 53/26 - Drying gases or vapours
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 71/06 - Organic material
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F24F 13/00 - Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening

Abstract

The present invention belongs to the technical field of polymer alloys, and in particular relates to a polymer alloy, a preparation method therefor, and a use thereof. The preparation method provided by the present invention comprises: melting and blending a thermoplastic polymer, a first component, a second component and a catalyst, an esterification reaction and transesterification reaction occurring during the melting and blending process to obtain the polymer alloy. The thermoplastic polymer contains one or more among a hydroxyl and/or ester group; the first component contains an epoxy group; the second component contains one or more among a carboxyl group, an acid anhydride group and an isocyanate group; and the catalyst comprises one or more among a nitrogen heterocycle, a tertiary amine, a sulfonic acid, an organophosphorus, a guanidine, an organometallic compound and a metal complex catalyst. In the preparation method provided by the present invention, a polymer alloy having excellent physical and mechanical properties and processing properties is obtained by blending by means of a melting reaction. The preparation method is simple and suitable for industrial production.

IPC Classes  ?

• C08G 59/42 - Polycarboxylic acidsAnhydrides, halides, or low-molecular-weight esters thereof
• C08G 59/62 - Alcohols or phenols
• C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 63/02 - Polyglycidyl ethers of bis-phenols
• C08L 63/06 - Triglycidylisocyanurates
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers

Abstract

The present invention belongs to the technical field of electrically conductive fillers. Provided are a dendritic silver-plated aramid electrically conductive filler and a preparation method therefor and the application thereof, and a polymer/dendritic silver-plated aramid composite material. The dendritic silver-plated aramid electrically conductive filler provided in the present invention comprises an aramid and a silver layer, which is deposited on the surface of the aramid, wherein the aramid has a "three-dimensional dendritic" structure. The dendritic silver-plated aramid electrically conductive filler provided in the present invention has a dendritic structure, and fillers easily overlap to form a three-dimensional electrically conductive network, that is, with a low addition amount of electrically conductive fillers, a composite material may be endowed with high electrical conductivity, high thermal conductivity and high electromagnetic shielding effectiveness. The electrically conductive filler provided in the present invention uses a dendritic aramid as a core layer, such that the stacking density of the electrically conductive filler is relatively low, thereby solving the problem of gravity sedimentation easily occurring when metal particles are used as an electrically conductive filler of a composite material. Moreover, the mechanical interlocking effect between a dendritic electrically conductive filler and a polymer matrix is strong, such that a polymer composite material can be endowed with excellent mechanical properties.

IPC Classes  ?

• D06M 101/36 - Aromatic polyamides
• D06M 11/38 - Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
• D06M 15/61 - Polyamines
• D06M 11/55 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxideTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfuric acid or thiosulfuric acid or their salts
• C23C 18/44 - Coating with noble metals using reducing agents

Abstract

An online measurement device for crystal size and shape in a high-solid-content crystallization process includes a solution amplifier, a measurement device, a peristaltic pump, a crystallization kettle, a dilution device and a solution storage tank. A crystal-containing solution is arranged in the crystallization kettle; an inner wall of the solution amplifier is smooth, one end is an amplification end, and the other end is a contraction end. The contraction end is communicated with one end of the solution storage tank and one end of the crystallization kettle. The amplification end is communicated with the dilution device and the peristaltic pump. The peristaltic pump is communicated with the other end of the crystallization kettle. The solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline. A measurement instrument of the measurement device is arranged at the outer side of the solution amplifier.

IPC Classes  ?

• B01D 9/02 - Crystallisation from solutions
• B01D 9/00 - Crystallisation
• G01N 15/1404 - Handling flow, e.g. hydrodynamic focusing
• G01N 15/1434 - Optical arrangements
• G01N 15/14 - Optical investigation techniques, e.g. flow cytometry

Abstract

The present disclosure belongs to the field of energy materials, and relates to a preparation method of a solid electrolyte, in particular to a method for forming a membrane by using an electrolyte to activate a porous powder material prepared by in-situ polymerization of a polymer on the surfaces of cellulose nanocrystals, and then hot-pressing. According to the technical solution of the present disclosure, cellulose nanocrystals are used as templates, the powder material with a porous structure is prepared by in-situ polymerization growth of the polymer on the surfaces of the cellulose nanocrystals, a small amount of electrolyte is used to activate the powder, and the solid electrolyte is prepared by hot-pressing membrane formation. The solid electrolyte prepared by the present disclosure has excellent electrochemical performance and mechanical performance, and a broad application prospect.

IPC Classes  ?

• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present invention relates to a high thermal-conductivity phase-change organic silicon rubber, comprising 100 parts of vulcanized silicon rubber, 20-30 parts of aluminum oxide modified with a silane coupling agent, 10-20 parts of boron nitride modified with a silane coupling agent, and 30-60 parts of a graphite/paraffin phase-change material. By providing the three fillers, under the condition that the addition amount is small, the thermal conduction property of the silicon rubber is improved, and the physical processing property of the silicon rubber is not influenced.

IPC Classes  ?

• C08L 83/04 - Polysiloxanes
• C08L 91/06 - Waxes
• C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
• C08K 3/04 - Carbon
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C08K 3/38 - Boron-containing compounds
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A method for preparing a high-crystallinity porous polylactic acid film, which belongs to the field of preparation methods for high-crystallinity polylactic acid. The low crystallinity of polylactic acid causes the thermal deformation temperature and heat resistance thereof to be low, which restricts the daily scope of application thereof, such that effectively improving the crystallinity thereof is one of the key difficult problems that needs to be solved for improving the heat resistance thereof. Provided is a method for preparing high-crystallinity polylactic acid, which method comprises: first dissolving polylactic acid in a single solvent or mixed good solvents to obtain a uniform and transparent solution; then respectively adding the polylactic acid solution and a poor solvent for polylactic acid, or mixing same and adding the mixture, to a flat-bottom vessel, and leaving same to stand at room temperature for 4-24 hours so as to form all the polylactic acid into a film; and then by means of a drying process, completely removing the solvent therein to obtain a high-crystallinity polylactic acid film. By means of the preparation conditions, the crystallinity and structure of polylactic acid can be regulated and controlled, and the method has the significant advantages of simple and convenient operation, mild conditions, low costs, significant effects, etc.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

Provided are a compound using fluorene as a core, and a preparation method therefor and the use thereof. By means of changing the types of a donor and an acceptor and bonding positions, an electroluminescent device having a series of blue light-emitting molecules and high efficiency and mobility is obtained, and the device has a simple structure, and can be prepared on a large scale to save on time and cost. The use of the compound with fluorene as a core is further comprised. The compound is used as an organic light-emitting diode material or is used for preparing an organic electroluminescent device. A blue photoluminescence spectrum is presented in the spectroscopic tests of the prepared compound in tetrahydrofuran and in a film state; and the compound has an excellent thermal performance and a good film-forming property, and the electroluminescence spectrum thereof after the evaporation deposition of a device is still a blue photoluminescence spectrum.

IPC Classes  ?

• C07D 235/02 - Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
• C07D 235/18 - BenzimidazolesHydrogenated benzimidazoles with aryl radicals directly attached in position 2
• C07D 249/08 - 1,2,4-TriazolesHydrogenated 1,2,4-triazoles
• C07D 251/24 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
• C07D 271/107 - 1,3,4-OxadiazolesHydrogenated 1,3,4-oxadiazoles with two aryl or substituted aryl radicals attached in positions 2 and 5
• C07D 403/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
• C07D 413/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• H01L 51/54 - Selection of materials
• H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

Abstract

A measuring device for pore throat pressure of Jamin effect based on mechanochromic materials is provided and includes: a bubble pressurization part, configured to inject bubbles into a microscopic visualization test part; the microscopic visualization test part including a mechanochromic material and a pore throat structure, configured to characterize changes of pore throat pressure during bubble injection; a waste liquid recycling part, configured to recycle bubble waste liquid passing through the microscopic visualization test part; a data acquisition and analysis part, configured to acquire changing data of the pore throat pressure in the microscopic visualization test part and analyze the changing data to obtain the pore throat pressure. The device is simple in structure and easy to operate, and provides a method for measuring an internal surface pressure of an object. The method can realize a real time measurement of the pore throat pressure of Jamin effect.

IPC Classes  ?

• G01L 7/18 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
• G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
• E21B 43/26 - Methods for stimulating production by forming crevices or fractures
• G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
• G06T 7/90 - Determination of colour characteristics

Abstract

The present invention discloses a synthesis method of lactide by confinement effect catalysis of crystalline porous polymer material, wherein the method comprising: (I) synthesis of catalyst; (II) synthesis of lactide by confinement effect catalysis; and (III) purification of lactide. In the present invention, a yield of L-lactide by catalysis of L-lactic acid by crystalline polymers is as high as 85.6%, which is 10% higher than the yield of lactide by H-β molecular sieve reported in documents currently available; it is easy to prepare the crystalline porous polymer material catalyst, which is environmental friendly, has a high yield and is recyclable, for consecutive 7 times the catalysis yield is maintained to be higher than 70%, and catalysis yield conservation rate is far higher than catalysis effects of catalysts reported in documents currently available.

IPC Classes  ?

• C07D 319/12 - 1,4-DioxanesHydrogenated 1,4-dioxanes not condensed with other rings
• B01J 31/04 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 37/04 - Mixing
• B01J 37/06 - Washing

Abstract

Disclosed is a peak point similarity fitting-based hyperbola extraction method. The method comprises: converting a GPR image into time series for processing, constructing a wavelet mean line-based dynamic window, and extracting peak points that may identify B-scan image features; using improved DTW correlation between adjacent wave windows to carry out a peak point clustering operation an opening of which is downwards; and finally, in combination with the absence or duplication of each type of point cluster, performing peak point interpolation and curve fitting operations to identify a hyperbolic wave. According to the present invention, the position and shape of the hyperbolic wave may be effectively identified in a real fuzzy image data set, thereby verifying the accuracy of the method. The present invention is widely used in the fields of military, geological survey, underground landfills, archaeology, etc. The result of target identification is used to determine the condition of an underground target, resulting in the achievement of a breakthrough development.

IPC Classes  ?

• G01S 13/88 - Radar or analogous systems, specially adapted for specific applications

Abstract

A preparation method includes 1) dispersing cellulose nanocrystal in water and adjusting pH to 7; 2) adding carboxylate to the aqueous dispersion of the step 1), and stirring until uniform; and 3) adding a monomer and a ceric ammonium nitrate initiator to the system of the step 2), reacting for 0.5-3 h to obtain a precipitate, and subjecting the precipitate to suction filtration, washing, and drying to obtain the cellulose nanocrystal powder. By adding a small amount of carboxylate into a cellulose nanocrystal graft polymer modification system initiated by ceric ammonium nitrate, hydrolysis of cerium ions can be inhibited through complexation of the carboxylate to the cerium ions which play an initiating role in ceric ammonium nitrate, so that ceric ammonium nitrate can initiate the polymerization reaction under acid-free conditions, thereby achieving polymerization of polyvinyl acetate monomer on the surface of cellulose nanocrystals.

IPC Classes  ?

• C08F 251/02 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
• C08L 51/02 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to polysaccharides

Abstract

A system for a deep-sea planktonic microorganism in-situ concentration, temperature maintaining and pressure maintaining sampling is provided and includes a sampling cylinder body with double layer structures, the sampling cylinder body is provided with a plug-shaped inner cavity, the plug-shaped inner cavity is provided with a transfer water outlet and a water inlet connected to a water inlet component, the plug-shaped inner cavity is connected to an end cover, the plug-shaped inner cavity is connected to a filter part, the sampling cylinder body is provided with a sampling water outlet, the sampling water outlet is respectively connected to a pressure maintaining device and a water outlet pipe, a temperature maintaining material layer and a temperature control component are connected between the double layer structures, and the temperature control component is electrically connected to a controller. The system can complete sampling on the premise of maintaining in-situ pressure of samples.

IPC Classes  ?

• G01N 1/14 - Suction devices, e.g. pumpsEjector devices
• G01N 1/34 - PurifyingCleaning
• G01N 1/10 - Devices for withdrawing samples in the liquid or fluent state

Abstract

Embodiments of the present application relate to the field of nanomaterials, and to cellulose nanocrystal powder, a preparation method therefor, and an application thereof. The preparation method comprises the following steps: 1) dispersing a cellulose nanocrystal in water, and adjusting a pH value to 7; 2) adding a carboxylate into the aqueous dispersion in step 1), and uniformly stirring; and 3) adding a monomer and a ceric ammonium nitrate initiator to the system in step 2), reacting for 0.5-3 h to obtain a precipitate, and performing suction filtration, washing and drying on the precipitate to obtain cellulose nanocrystal powder. In the present application, a small amount of a carboxylate is added to a system in which the modification of a cellulose nanocrystal graft polymer is initiated by ceric ammonium nitrate, and a carboxylic acid salt is used for complexing cerium ions in ceric ammonium nitrate having an initiation effect, such that the hydrolysis of cerium ions is inhibited, and a polymerization reaction can be initiated by ceric ammonium nitrate under an acid-free condition, thereby achieving the polymerization of a polyvinyl acetate monomer on the surface of the cellulose nanocrystal. The preparation method of the present application is not limited by a surface functional group of the cellulose nanocrystal.

IPC Classes  ?

• C08F 251/02 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
• C08F 218/08 - Vinyl acetate
• C08L 51/02 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to polysaccharides

Abstract

Disclosed are a homopolymer electrolyte composite vesicle, a preparation method therefor, an antibacterial vesicle, a vesicle containing hydrophobic substances and an anti-adhesion vesicle. In the present invention, two polypeptides having opposite charges are self-assembled into a stable nano-scale homopolymer electrolyte composite vesicle by means of an electrostatic action. The vesicle has relatively good membrane permeation characteristics and relatively good sterilization effects under acidic conditions, and can encapsulate hydrophobic dyes or drugs to achieve efficient delivery of the drugs. Moreover, the surface of the vesicle has zwitterionic features and has a relatively good protein adhesion resistance performance. The vesicle is more stable after light cross-linking on the surface thereof, has better adhesion resistance, and can effectively regulate and control the release rate of internal drugs.

IPC Classes  ?

• A61K 47/34 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
• A61K 9/127 - Synthetic bilayered vehicles, e.g. liposomes or liposomes with cholesterol as the only non-phosphatidyl surfactant
• A61P 31/04 - Antibacterial agents

Abstract

Disclosed is an electrostatic spinning superfine fiber twisting apparatus, comprising an outer sleeve and a middle sleeve. The middle sleeve is sleeved with the outer sleeve. An annular space is formed between the outer sleeve and the middle sleeve. A melt inlet communicated with the annular space is formed on the outer sleeve. The bottom end of the outer sleeve is provided with a conical hole, and the top end of the conical hole is communicated with the bottom end of the annular space. The outer sleeve is wrapped with a heating ring used for heating a melt in the annular space. A columnar metal rod passes through the middle sleeve. A gap is formed between the metal rod and the middle sleeve. A circular truncated cone located below the conical hole is fixedly connected to the bottom end of the metal rod. The bottom surface of the circular truncated cone having a larger area is fixedly connected to the bottom end of the metal rod, and a conical guide tip is fixedly connected to the bottom surface of the circular truncated cone having a smaller area. The conical surface of the guide tip is smoothly connected to the conical surface of the circular truncated cone. The metal rod, the circular truncated cone, the guide tip and the annular space are coaxial. The present invention improves the twisting stability and uniformity of electrostatic spinning fibers.

IPC Classes  ?

• D01H 1/08 - Spinning or twisting machines in which the product is wound-up continuously cup, pot, or disc type, in which annular masses of yarn are formed by centrifugal action
• D01D 5/00 - Formation of filaments, threads, or the like

Abstract

2222222 nanoprobe can be used for miRNA fluorescence and Raman dual-mode detection and/or fluorescence in situ imaging and preparation of a nanoformulation.

IPC Classes  ?

• C12Q 1/6818 - Hybridisation assays characterised by the detection means involving interaction of two or more labels, e.g. resonant energy transfer
• C12N 15/11 - DNA or RNA fragmentsModified forms thereof
• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61P 35/00 - Antineoplastic agents
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals

Abstract

ww=890 kg•mol-1, and the cycloolefin copolymer has a high comonomer insertion rate of up to 45 mol%. Therefore, the anthracene skeleton-based bimetallic catalyst provided in the present invention has original innovation, and can enhance the competitiveness of China to participate in the technical market of international high-end polyolefin polymer materials.

IPC Classes  ?

• C08F 110/02 - Ethene
• C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• C08F 4/642 - Component covered by group with an organo-aluminium compound

Abstract

The present invention relates to the field of synthetic materials, and in particular to a thermoplastic special engineering plastic PPS/PI alloy material and a preparation method therefor. Components of the alloy material comprise: 75-85 parts of polyphenylene sulfide, 10-20 parts of polyimide, 10-15 parts of activated alumina, and 0.2-0.5 part of polytetrafluoroethylene, wherein the activated alumina is prepared from alumina and an epoxy silane coupling agent. The preparation method for the alloy material comprises: mixing the polyphenylene sulfide, the polyimide, the activated alumina, and the polytetrafluoroethylene in a normal-temperature high-speed mixer, and then performing extrusion granulation on the mixture in a twin-screw extruder to obtain a PPS/PI thermoplastic special engineering plastic alloy material. The alloy material has greatly improved wear resistance and high temperature resistance, can be recycled repeatedly, and is thus an environment-friendly material.

IPC Classes  ?

• C08L 81/02 - PolythioethersPolythioether-ethers
• C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A printing apparatus and a printing method. Both an A-electrode unit (2) and a B-electrode unit (3) are controlled, by means of a computation unit (1), to be in contact with a material, so as to form a power-on loop, and the surface temperature of a phase-change material in the material between the A-electrode unit (2) and the B-electrode unit (3) is made greater than or equal to a preset temperature, such that the materials within a distance are combined at the same time. The uniformity of energy during an additive manufacturing process can be improved, and an obtained printed object can be mixed more uniformly, thereby significantly improving the densification of a finally obtained printed object.

IPC Classes  ?

• B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices

Abstract

A preparation method for a magnetic covalent organic framework, mTFBD-PPD, a product and the use thereof, which belong to the technical field of preparation of a toxin adsorbent. The preparation method comprises: dissolving 3,3',5,5'-tetraaldehyde-4,4'-dihydroxybiphenyl and an alkali in water to obtain a solution; dispersing p-phenylenediamine and magnetic nanoparticles in an organic solvent to obtain a dispersion; and mixing the solution with the dispersion, and reacting same to obtain a magnetic covalent organic framework, mTFBD-PPD. The new adsorbent, mTFBD-PPD, which is prepared by combining a covalent organic framework material with magnetic nanoparticles, has the characteristics of a large specific surface area, good thermal stability, a strong selectivity, being capable of rapid separation, being reusable, etc.; and same can effectively improve the adsorption rate during the use thereof in the adsorption of diarrhetic shellfish toxins.

IPC Classes  ?

• C08G 12/08 - Amines aromatic
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C08K 3/22 - OxidesHydroxides of metals
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/26 - Synthetic macromolecular compounds
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption

Abstract

A cantilever-type flat-surface automatic adhesive tape application device (4) is composed of a base (71), an adhesive tape application support (72), an adhesive tape application cantilever assembly (73), an adhesive tape fixing roller (74), a pulled adhesive tape (75), an adhesive tape feeding electric motor (76), an adhesive tape cutting knife (77) and an adhesive tape application head (78). The device uses a liftable two-stage telescopic cantilever-type adhesive tape application head structure, a roller-type automatic adhesive tape feeding structure, an adjustable fixed-length cutting structure and a roller-type application structure, and achieves automatic application of an adhesive tape on inner and outer flat surfaces of an article (2) for adhesive tape application.

IPC Classes  ?

• B65B 51/06 - Applying adhesive tape
• B65B 61/06 - Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting

Abstract

The present application provides a breakdown-resistant high-voltage cable, comprising a wire core and an insulating layer. An inner semi-conductive shielding layer is arranged between the wire core and the insulating layer; a nanopore structure layer is arranged at an interface between the inner semi-conductive shielding layer and the insulating layer; the nanopore extending direction of the nanopore structure layer is perpendicular to the extending direction of the cable. In the breakdown-resistant high-voltage cable, the interface between the inner semi-conductive shielding layer and the insulating layer is the nanopore structure layer having a nano-scale pore diameter, thereby effectively preventing interface discharge caused by a defect of the interface between the inner semi-conductive shielding layer and the insulating layer, and greatly improving the breakdown-resistant field strength of the cable.

IPC Classes  ?

• H01B 7/02 - Disposition of insulation
• H01B 9/02 - Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Abstract

A drawer-type intelligent air dryer, comprising: a power line (1) being connected to a device housing (2); a fan (7) being connected to the inner top of the device housing (2); a cooling and warm air control button (3) controlling a type of an air flow discharged by the fan (7); clothes hanger rods (10) being integrally connected to clothes hangers (11); a drainage channel (13) being provided on a sidewall of a water storage tank (14), a sponge layer (16) being laid on the water storage tank (14), and a water quality sensor (15) being mounted at the bottom of the water storage tank (14); a pH value being displayed by means of a display (4); a rubber plug (5) being provided at an outlet of the drainage channel (13); universal wheels (6) being provided at the outer bottom of the device housing (2); and the interior of the device housing (2) being divided into two chambers by a partition plate layer (17). Different forms of air drying can be performed on clothes of different materials by means of different displacement modes; the sponge layer (16) can perform buffering on water drops; whether the residual of washing powder is excessive can be detected by the water quality sensor (15) in the water storage tank (14); a drawer type can be more convenient for placing clothes; the universal wheels (6) can move the device to a specified position to discharge water; and when the device is idle, the universal wheels (6) are provided with brake pads to prevent a dryer body from moving.

IPC Classes  ?

• D06F 58/10 - Drying cabinets or drying chambers having heating or ventilating means
• D06F 58/20 - General details of domestic laundry dryers

Abstract

A malic acid-chitosan nanopore hydrogel microsphere, and a preparation method therefor and an application thereof, relating to the technical fields of guaranteeing aquatic food safety and preparing paralytic shellfish toxin biological adsorbents. The preparation method for the malic acid-chitosan nanopore hydrogel microsphere specifically comprises: preparing malic acid and chitosan into a hydrogel; and then adding nano silicon dioxide and glycerin into the prepared hydrogel, adding sodium hydroxide, completely dissolving the nano silicon dioxide under alkaline conditions to form uniformly distributed nanopores, washing, freeze-drying, and grinding and sieving to obtain the malic acid-chitosan nanopore hydrogel microsphere. The prepared malic acid-chitosan nanopore hydrogel microsphere can be used as an efficient adsorbent to adsorb and remove paralytic shellfish toxins in a waterbody. The preparation method is simple, the prepared adsorbent is convenient to use and easy to store after drying, and the present invention has great application significance in controlling shellfish toxin contamination and improving product safety.

IPC Classes  ?

• B01J 20/24 - Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption

Abstract

Provided in the present application is a new-type high-voltage cable. The high-voltage cable comprises a wire core and an insulation layer, wherein a nanopore structure layer is provided in the region of the insulation layer that is close to the wire core, and the nanopore extension direction of the nanopore structure layer is perpendicular to a cable extension direction. In the high-voltage cable, there is no inner semi-conductive shielding layer, and the nanopore structure layer, which has a nano-scale pore size, is provided in the region of the insulation layer that is close to the wire core, such that electric discharge can be effectively prevented, so as to significantly improve the resistance of the cable to breakdown field strength and raise the voltage level of the cable.

IPC Classes  ?

• H01B 7/02 - Disposition of insulation
• H01B 7/29 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame
• H01B 7/42 - Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
• H01B 9/02 - Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Abstract

The present invention belongs to the field of energy materials, relates to a preparation method for a novel solid electrolyte, and specifically relates to a method for preparing a porous powder material by means of in-situ polymerization of a polymer on the surface of cellulose nanocrystal, activating the porous powder material by means of an electrolyte solution and then performing hot pressing to form a film. According to the technical solution of the present application, the cellulose nanocrystal is used as a template, the powder material with the porous structure is prepared by means of in-situ polymerization growth of a polymer on the surface of the cellulose nanocrystal, the powder is activated by means of a small amount of electrolyte solution, and the solid electrolyte is prepared by means of hot-pressing film formation. The solid electrolyte prepared by using said method has excellent electrochemical performance and mechanical performance, and has a wide application prospect. Moreover, the technical solution provided by the present invention solves the problem that a large amount of toxic solvents are generated by means of traditional solution evaporation film formation, and is more environmentally friendly and efficient.

IPC Classes  ?

• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• C08F 251/02 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
• C08F 220/44 - Acrylonitrile

Abstract

A Restful-type Web service clustering method fusing service cooperation relationships. Said method comprises: firstly, preprocessing service description information in services needing to be clustered, acquiring a preprocessed service description information text, and constructing a corpus; secondly, extracting, by using a service description feature word extraction algorithm based on context weight, a certain proportion of feature words most related to service features from the corpus to construct a service feature word set; thirdly, constructing an improved GSDMM model with a topic probability distribution correction factor, converting the feature words of each service into a service representation vector, and calculating the function similarity among different services by means of an Euclidean distance formula; then constructing a service cooperation graph, and obtaining, on the basis of the graph, the cooperation similarity among different services; and finally, according to the obtained function similarity and cooperation similarity, obtaining a service comprehensive similarity for clustering, and performing clustering by means of a k-means++ algorithm to complete service clustering.

IPC Classes  ?

• G06F 16/35 - ClusteringClassification

Abstract

A non-pneumatic safety tire having a bionic tooth structure. Supporting columns (30) of the non-pneumatic safety tire extend between an inner circumferential connecting member (40) and an outer circumferential connecting member (20) and are respectively connected to the inner circumferential connecting member (40) and the outer circumferential connecting member (20) in a matching mode, the supporting columns (30) have a certain radian and are bent towards the outside of a tire side, and the two supporting columns (30) are correspondingly disposed in the axial direction of the tire and arranged in a mirror symmetry mode, so as to form a "tooth"-shaped supporting pair. The non-pneumatic safety tire structure not only has the characteristics of bearing capacity and static stiffness of a pneumatic tire, but also is reasonable in grounding pressure distribution, thereby facilitating improvement of shock absorption performance.

IPC Classes  ?

• B60C 7/00 - Non-inflatable or solid tyres
• B60C 7/10 - Non-inflatable or solid tyres characterised by means for increasing resiliency

Abstract

The present invention relates to a carbon-based two-dimensional composite electrode material and a preparation method therefor, which belongs to the technical field of electrode material preparation. The method specifically comprises: respectively adding sodium dodecyl sulfonate, polyvinylpyrrolidone, thiourea and thioacetamide to a ferric salt solution, then carrying out hydrothermal treatment to obtain a two-dimensional composite material precursor; and carrying out heat treatment on the two-dimensional composite material precursor to obtain an iron sulfide and carbon two-dimensional composite nanomaterial. The integrated composite structure construction strategy not only simplifies the synthesis process of the whole electrode material, but also significantly increases the firmness of the contact between the iron sulfide and the two-dimensional carbon nanosheet, greatly reduces the interface impedance, and accelerates the transmission speed of electrons and ions on different phase interfaces, and thus, the iron sulfide and carbon two-dimensional composite nanostructure shows excellent cycle performance and extraordinary rate capability.

IPC Classes  ?

• C01B 32/15 - Nanosized carbon materials
• C01G 49/12 - Sulfides
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

Abstract

Disclosed are a novel BH3 mimetic peptide analog inhibiting PTP1B activity and an application thereof. The structural formula (I) of the novel BH3 mimetic peptide analog is as shown below. The mimetic peptide compound is derived from the core region of the Bim-BH3 domain and is prepared by using a solid-phase peptide synthesis method, and the amino acids in the structure thereof are all natural amino acids. The novel BH3 mimetic peptide analog has significant PTP1B-inhibiting activity, and has potential application value in the drug development of related diseases that target PTP1B, such as diabetes, cancer, and Alzheimer's disease.

IPC Classes  ?

• C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals
• C07K 1/04 - General processes for the preparation of peptides on carriers
• C07K 1/06 - General processes for the preparation of peptides using protecting groups or activating agents
• C07K 1/20 - Partition-, reverse-phase or hydrophobic interaction chromatography
• A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
• A61P 35/00 - Antineoplastic agents
• A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
• A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics

Abstract

The present invention relates to the technical field of membrane separation, and discloses a method for preparing a nanofiber/MOFs-based preferential alcohol-permeable pervaporation membrane. The present invention first provides the strategy of uniformly pre-loading MOFs particles onto a porous fiber gel matrix and using said particles as a "composite network filler" of a pervaporation membrane, and then backfilling with a polymer base and curing, such that uniform dispersion of high-load MOFs particles in the polymer base can be effectively achieved, and the obtained mixed matrix membrane has excellent mechanical properties, high-efficiency permeation and vaporization performance, and good application prospects in the aspect of separation of mixed systems of bio-alcohols such as ethanol and butanol.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/14 - Dynamic membranes
• B01D 71/70 - Polymers having silicon in the main chain, with or without sulfur, nitrogen, oxygen or carbon only

Abstract

An online measurement device (2) for the size and shape of a crystal in a high-solid-content crystallization process, comprising a solution amplifier (1), a measurement device (2), a peristaltic pump (5), a crystallization kettle (9), a dilution device, and a liquid storage tank (10). A crystal-containing solution is contained in the crystallization kettle (9); an inner wall of the solution amplifier (1) is smooth, and the solution amplifier (1) has one end being an amplification end, and the other end being a contraction end; the contraction end of the solution amplifier (1) is separately communicated with one end of the liquid storage tank (10) and one end of the crystallization kettle (9); the amplification end of the solution amplifier (1) is separately communicated with the dilution device and the peristaltic pump (5); the peristaltic pump (5) is communicated with the other end of the crystallization kettle (9); the solution amplifier (1), the peristaltic pump (5), and the crystallization kettle (9) form a complete passage by means of a pipeline (4); a measurement instrument of the measurement device (2) is provided on the outer side of the solution amplifier (1) and focuses on a solution in the amplification end of the solution amplifier (1); and at least one stop valve is mounted on each branch of the pipeline (4). According to the present invention, measurement of a crystallization solution having solid content higher than 10% is realized; and heat preservation and a constant-temperature tank (3) are designed for the pipeline (4), such that the problems of solution crystallization on a pipe wall and pipeline (4) blockage are avoided.

IPC Classes  ?

• G01N 15/02 - Investigating particle size or size distribution
• G01N 21/84 - Systems specially adapted for particular applications
• B01D 9/02 - Crystallisation from solutions

Abstract

The present invention provides a co-reactant self-generating and signal-amplifying electrochemiluminescence system for detecting miRNA, and relates to the technical field of miRNA detection. The system provided by the present invention realizes the self-generation of a co-reactant in the presence of a target miRNA by utilizing a nano sensing substrate with a large surface area and by means of the construction of a capture probe with a modified hairpin structure, and amplifies signals in combination with a strand displacement nucleic acid isothermal signal amplification policy, so that high-sensitivity and high-specificity electrochemiluminescence detection of the target miRNA can be realized. When the system provided by the present invention is used for detecting an miRNA, the detection accuracy and sensitivity can be improved, and human interference factors are also eliminated.

IPC Classes  ?

• C12Q 1/682 - Signal amplification
• C12Q 1/6825 - Nucleic acid detection involving sensors
• C12Q 1/26 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving oxidoreductase

Abstract

Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypochlorite; leaving to stand for layering; and performing centrifugation and washing on a lower-layer slurry to obtain a stably dispersed pyrolysis carbon black/water suspension. The modification method can be operated simply and easily; and by means of the method, ash in pyrolysis carbon black of waste tires can be effectively removed, and the pyrolysis carbon black is then stably dispersed in water. In addition, the modification method is low in production cost, and is green and environmentally friendly, and a waste liquid thereof can be recycled.

IPC Classes  ?

• C09C 1/48 - Carbon black
• C09C 1/56 - Treatment of carbon black

Abstract

The present invention relates to a system and process of industrial continuous cracking of mixed waste plastics according to class, the system comprising: an extrusion dryer; first and second stage lifting screw conveyors; a catalytic mixing cylinder; a semi-plasticizing feeder; first, second and third stage cracking reaction furnaces; slag discharging first, second and third stage screws; a separator; a slag storage tank; first, second and third basket-type filters; first, second and third stage settling towers; air-cooling first, second and third heat exchangers; water-cooling first, second and third stage heat exchangers; first, second and third stage gas-liquid separation tanks; first, second and third oil tanks; a non-condensable combustible gas purifier; a tail gas treatment module; a combustion chamber; and a combustor. In the present invention, according to the characteristics of different types of plastic and different cracking temperatures, a method for cracking mixed plastics according to class is provided, and the economic value added of the product of cracking is increased by independently recycling a cracked oil product; in addition, energy consumption during the cracking process is reduced by means of the recycling combustion of non-condensable combustible gas and the recycling of high-temperature waste heat, and waste gas passes through multiple purification steps, thus preventing environmental pollution.

IPC Classes  ?

• C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
• C10B 57/02 - Multi-step carbonising or coking processes
• C10B 49/04 - Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated
• B01D 53/86 - Catalytic processes
• B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
• B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material

Abstract

A micro-nano structure formed by self-assembling a compound represented by formula (I), an isomer thereof, a pharmaceutically acceptable salt, a hydrate or a solvate in an aqueous solution, a preparation method for the micro-nano structure, and use thereof are described. The micro-nano structure has the advantages of having high photothermal conversion efficiency, good photothermal stability, good photothermal effect and photodynamic effect, being easily degraded, and having high safety, and can be passively targeted to tumor sites, having a broad prospect in the diagnosis and treatment of cancers and skin diseases. A micro-nano structure formed by self-assembling a compound represented by formula (I), an isomer thereof, a pharmaceutically acceptable salt, a hydrate or a solvate in an aqueous solution, a preparation method for the micro-nano structure, and use thereof are described. The micro-nano structure has the advantages of having high photothermal conversion efficiency, good photothermal stability, good photothermal effect and photodynamic effect, being easily degraded, and having high safety, and can be passively targeted to tumor sites, having a broad prospect in the diagnosis and treatment of cancers and skin diseases.

IPC Classes  ?

• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61K 49/22 - Echographic preparationsUltrasound imaging preparations
• A61P 35/00 - Antineoplastic agents
• C07D 209/10 - IndolesHydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
• C07D 405/08 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing alicyclic rings

Abstract

A conveying and cooling method for a high-temperature solid product obtained after waste plastic cracking. The conveying and cooling method comprises the following steps: 1) primary cooling: enabling the high-temperature solid product obtained after waste plastic cracking to enter a first spiral conveying apparatus (100) for cooling; 2) secondary cooling: enabling the solid product to enter a second spiral conveying apparatus (200) from the first spiral conveying apparatus (100) by means of a shifting device (500) for cooling; 3) tertiary cooling: enabling the solid product to enter a third spiral conveying apparatus (300) for cooling; and 4) storing and discharging: enabling the solid product to enter a storage tank (400), opening an electric valve (41), and discharging residues. High-temperature cracking residues are cooled in a staged mode by means of multi-stage spiral conveying; low-temperature discharging and conveying of the high-temperature residues are achieved; the residues are compressed and stacked in a spiral conveying process; self-sealing of the apparatus is achieved by means of natural gravity stacking of the residues; cracking gas is prevented from escaping; external gas is prevented from entering; and the sealing method is simple, effective and environmentally friendly.

IPC Classes  ?

• B65G 33/32 - Adaptations of bearings or couplings for supporting or connecting screws
• B65G 33/14 - Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
• F25D 17/02 - Arrangements for circulating cooling fluidsArrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
• F25D 25/04 - Charging, supporting, or discharging the articles to be cooled by conveyors

Abstract

A method for separating a solid product of the continuous pyrolysis of waste plastic by using a separation device. The used separation device comprises a feeding port (1), a separation machine barrel (4), a separation screw (5), a strip-shaped sieve hole (6), graphite packings (7), a separation motor (8), a medium outlet (9), a collection machine barrel (10), a collection screw (11), reverse spiral discharge blades (12), an ash outlet (13), a forward spiral discharge blade (14), a driving chain (15), forward spiral sieving blades (16), a driving chain wheel (17), a driven chain wheel (18), a shaft coupler (19) and bearing seats (20). The method for separating a solid product of the continuous pyrolysis of waste plastic comprises: a spiral conveying separation step and an automatic ash collection step; and automatic separation of pyrolysis ash and a high-enthalpy solid heat storage medium is achieved when sealing is ensured, thus achieving the automatic and reliable collection of pyrolysis ash, improving production efficiency, and ensuring the sealing performance of the entire device.

IPC Classes  ?

• B07B 1/20 - Stationary drums with moving interior agitators
• B07B 1/42 - Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
• B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens

Abstract

A solar-powered road-marking vehicle having an automatic alignment function, comprising a power supply apparatus, a material storage apparatus, a locomotion apparatus, a marking apparatus, and an electronic control device. The power supply apparatus comprises a solar panel, a solar panel turning table, and an accumulator; the material storage apparatus comprises a paint storage container, a paint level sensor, a pressure sensor, a mixer, a non-polar float, a float rod, a float rod handle, a paint storage container lid, and an alarm switch; the locomotion apparatus comprises propelling wheels, a propelling wheel motor, a turning wheel, a turning wheel steering gear, a turning disk, and an infrared sensor; the marking apparatus comprises a cleaning roller brush, a roller brush motor, a paint spray pump, a paint spray tube, a paint spray nozzle, and a marking instrument; the electronic control device comprises an ultrasonic wave range finder, a single chip microcomputer, a motor driving module, a PWM speed control module, a control panel, and an alarm system. In the present invention, the ultrasonic wave range finder is used to precisely measure the distance between the marking vehicle and a curb. When operating, under the control of the electronic control device, the turning wheel steering gear gives a location adjustment response, and the marking vehicle achieves an automatic marking function, effectively solving the problem of large error in human marking. The present invention is provided with a solar power supply apparatus and two solar panels, and the marking vehicle utilizes electric drive, effectively decreasing energy consumption and solving the problem of shaking in internal combustion engine marking devices. The present invention overcomes the weaknesses of traditional human marking requiring a lot of labor and having high technical requirements and low marking accuracy, has the technical advantages of a simple structure, convenient controls, system efficiency, safety and reliability, high precision, and low energy consumption, and has broad application value.

IPC Classes  ?

• E01C 23/22 - Devices for marking-out, applying or forming traffic or like markings on finished pavingProtecting fresh markings for forming markings in situ by spraying

Abstract

Provided is a method for denoising an underwater acoustic signal on the basis of adaptive window filtering and wavelet threshold optimization. Said method comprises: first describing, in conjunction with an SαS distribution and normal distribution model, a Gaussian/non-Gaussian pulse noise in an underwater acoustic channel; designing a median filtering method based on an adaptive window, and correcting the size of a filtering window according to the number of noise points in the window, so as to suppress the non-Gaussian pulse noise; and then, on the basis of an improved artificial bee colony method (GDES-ABC), optimizing threshold parameters of a wavelet threshold denoising method, thereby improving the capability of suppressing Gaussian noise. Said method can effectively suppress Gaussian/non-Gaussian pulse noises in a complex underwater acoustic environment, improve the receiving capability of underwater acoustic communication signals such as 2FSK, QPSK and 16QAM, and obtain a higher output signal-to-noise ratio and noise suppression ratio.

IPC Classes  ?

• G10L 21/0216 - Noise filtering characterised by the method used for estimating noise
• H04B 11/00 - Transmission systems employing ultrasonic, sonic or infrasonic waves
• G10L 25/27 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique
• G10L 25/45 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of analysis window

Abstract

A method for preparing crackers in which seaweed polyphenols are embedded in microcapsules, and the product thereof. The preparation method comprises the following steps: mixing seaweed polyphenols, sodium alginate and cyclodextrin; adding water and dissolving same; freeze-drying in a vacuum to form a solid; crushing to obtain seaweed polyphenols for embedding in microcapsules; mixing the obtained seaweed polyphenols for embedding in microcapsules with liquid eggs, white sugar, salt, butter, and flour, adding water, and forming a dough; resting the dough; and rolling the prepared dough to shape same, and baking to obtain crackers in which seaweed polyphenols are embedded in microcapsules. By embedding seaweed polyphenols in microcapsules and adding cyclodextrin during processing, the fishy odor of seaweed can be effectively masked; using same to prepare crackers will not affect the taste and color of the crackers; moreover, the obtained crackers have a high content of seaweed polyphenols, and the activity retention rate of the seaweed polyphenols reaches 93% or higher.

IPC Classes  ?

• A21D 13/06 - Products with modified nutritive value, e.g. with modified starch content
• A21D 2/14 - Organic oxygen compounds
• A23P 10/30 - Encapsulation of particles, e.g. foodstuff additives
• A23L 29/256 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
• A23L 29/30 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing carbohydrate syrupsFoods or foodstuffs containing additivesPreparation or treatment thereof containing sugarsFoods or foodstuffs containing additivesPreparation or treatment thereof containing sugar alcohols, e.g. xylitolFoods or foodstuffs containing additivesPreparation or treatment thereof containing starch hydrolysates, e.g. dextrin

Abstract

A microcapsule-embedded squid ink melanin biscuit and a preparation method therefor. The preparation method comprises the following steps: (1) extracting squid ink melanin by an ultrasound-assisted water extraction method to obtain a squid ink melanin initial extract; (2) adding sodium alginate or carrageenan to the initial extract and adding an emulsifier to prepare a turbid liquid, adjusting the content of solids to be 20-30%, performing spray drying, and performing superfine grinding into 400-500 meshes to obtain squid ink melanin for later use; and (3) heating butter to a liquid state, adding the squid ink melanin, cooling same to room temperature, then adding beaten egg, adding white granulated sugar, aspartame, and common salt, uniformly stirring the mixture, adding flour, adding water, kneading dough using cold water, and baking in an oven according to a biscuit baking process. According to the method, a water extraction method is adopted, no enzyme preparation, acid/base reagent, or the like needs to be added, complete melanin particles can be retained, and the functionality of melanin is retained.

IPC Classes  ?

• A21D 13/06 - Products with modified nutritive value, e.g. with modified starch content
• A21D 2/18 - Carbohydrates
• A21D 2/16 - Fatty acid esters
• A21D 2/26 - Proteins
• A21D 2/34 - Animal material
• A21D 2/36 - Vegetable material
• A23L 29/10 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing emulsifiers
• A23L 29/256 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
• A23P 10/30 - Encapsulation of particles, e.g. foodstuff additives

Abstract

An antibacterial nanozyme and a preparation method therefor, relating to the technical field of antibacterial material. The preparation method is as follows: 1) heating and stirring an aqueous chloroauric acid solution, adding an aqueous sodium citrate solution, and obtaining a gold seed solution by means of boiling and cooling; 2) blending an aqueous ammonia solution, hemin, hydrazine hydrate and a sonicated aqueous graphene oxide solution, and obtaining a hemin-graphene complex by means of heating for reaction, centrifugation, cleaning and drying; and 3) blending an aqueous hydroxylammonium chloride solution, the gold seed solution obtained in step 1), the hemin-graphene complex obtained in step 2) and an aqueous chloroauric acid solution, stirring until the solution becomes cyan, stirring the solution again, stopping stirring and allowing the solution to stand to obtain the nanozyme. The photothermal performance exhibited by the nanozyme under 808 nm near-infrared laser irradiation and active oxygen free radicals generated on the surface of the nanozyme achieve high antibacterial efficacy.

IPC Classes  ?

• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61P 31/04 - Antibacterial agents
• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
• B82Y 5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C01B 32/184 - Preparation

Abstract

The present invention provides a Raman enhanced substrate and a preparation method therefor. The Raman enhanced substrate is formed by depositing a layer of three-dimensional gold nano-scale thin film on a surface of an indium tin oxide glass chip.

IPC Classes  ?

• C12Q 1/6825 - Nucleic acid detection involving sensors

Abstract

A heating and temperature equalization method for local induction heat treatment performed on a thick-walled high-pressure apparatus after welding, comprising the following steps: step 1: spot-welding multiple temperature measurement thermocouples (1) to an inner wall and an outer wall of a circumferential weld (11) of a thick-walled high-pressure cylinder (8); step 2: respectively laying ceramic fiber thermal insulation blankets (7, 9) on an inner wall and an outer wall of the cylinder; step 3: wrapping a flexible water-cooled cable (10) around the ceramic fiber thermal insulation blanket (9) on the outer wall of the cylinder to form a heating coil, wherein an electric circuit of the flexible water-cooled cable (10) is connected to an induction heating power supply (3), and a water circuit of the flexible water-cooled cable (10) is connected to an industrial water chiller (5); and step 4: using the temperature measurement thermocouple (1) to monitor respective temperatures of the inner wall and the outer wall of the thick-walled cylinder (8), and using a maximum temperature difference T between the inner wall and the outer wall of the cylinder and a maximum temperature difference P in a circumferential direction of the outer wall to control temperature uniformity of a heating region. The method uses an induction heating process and heating characteristics thereof, thereby improving an energy utilization rate, improving the accuracy of temperature measurement, and reducing process preparation time for the local heat treatment.

IPC Classes  ?

• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
• C21D 1/42 - Induction heating
• C21D 11/00 - Process control or regulation for heat treatments

Abstract

Disclosed is a precise and efficient multi-stage condensation separation apparatus, comprising a condensing device and a cracking device, which are connected to each other. The cracking device comprises a cracking furnace, a conveying pipeline, a heavy oil collection barrel, a purification barrel, a medium oil collection barrel, a light oil collection barrel, a heat preservation box a, a heat preservation box b and a conveying pipeline; one end of the cracking furnace is connected to the heavy oil collection barrel and a three-way pipe, the other end thereof is connected to an input end of an evaporation chamber of a first-stage condensing device by means of the conveying pipeline, the medium oil collection barrel is in communication below the evaporation chamber, an output end of the evaporation chamber is in communication with an input end of an evaporation chamber of a second-stage condensing device by means of the conveying pipeline, the light oil collection barrel is in communication below the evaporation chamber of the second-stage condensing device, an output end of the evaporation chamber of the second-stage condensing device is connected to the heat preservation box, an output pipeline of the heat preservation box is in communication with the purification barrel, and the purification barrel is in communication with the cracking furnace; and by means of the separation apparatus, the problems in the prior art of it only being possible to obtain oily matter with a large distillation range after cracking and condensation, and of cracked oily mixtures needing to be further separated are solved.

IPC Classes  ?

• C10G 5/06 - Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas by cooling or compressing
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation
• C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal

Abstract

1233, adding an ethanol solution to the pigment layer, subjecting same to an ultrasonic treatment and filtering same, and drying the filtrate to obtain kelp polyphenols. The extraction method achieves a reduced usage amount of 95% ethanol, an improved extraction ratio and also an improved resistance to oxidation, and promotes the industrial utilization of kelp polyphenols.

IPC Classes  ?

• A61K 36/03 - Phaeophycota or phaeophyta (brown algae), e.g. Fucus
• A61P 39/06 - Free radical scavengers or antioxidants

Abstract

The present invention relates to the technical field of protease-producing deep-sea exiguobacterium and provides a protease-producing deep-sea exiguobacterium mutant strain and use thereof. The protease-producing deep-sea exiguobacterium mutant strain MS10017 (Exiguobacterium profundum MS10017) has a preservation number of CCTCC NO: M2019795. By using lactobacillus acidophilus in combination with the protease-producing deep-sea exiguobacterium mutant strain MS10017 and using a continuous two-step fermentation method, high-efficiency decalcification and deproteinization are achieved, so as to extract chitin in shrimp shells or crab shells. The protease produced by the protease-producing deep-sea exiguobacterium mutant strain MS10017 has higher activity.

IPC Classes  ?

• C12N 1/20 - BacteriaCulture media therefor
• C12P 19/26 - Preparation of nitrogen-containing carbohydrates
• C12R 1/01 - Bacteria or actinomycetales
• C12R 1/23 - Lactobacillus acidophilus

Abstract

An intelligent ship recovery device. An electric arm is used to raise a launch system and adjust a vertical angle for launching a projectile (5). A stepper motor rotates a slewing bearing (8), and thereby a launch direction, through 180° on a horizontal plane in order to locate the direction of a mother ship. A steering engine (2) is used as a triggering device. A short rope is tied to a rudder arm (9) of the steering engine such that the steering engine is connected to a valve (10) of the projectile. The steering engine is controlled to rotate the rudder arm to open the valve, and the projectile is released. A guide rope is tied to a tail portion of the projectile. The rear half of the guide rope is a bearing rope, and an end thereof is connected to a ship body. The guide rope is placed according to the situation of the ship body. After the projectile is released, the projectile is pushed by high-pressure gas so as to bring the guide rope on the ship to the mother ship. Staff on the mother ship use the guide rope to cause the intelligent ship to approach the mother ship, and use the guide rope to attach the bearing rope of the ship body to a crane of the mother ship, thereby recovering the ship body. The intelligent ship recovery device recovers an intelligent ship without direct contact between staff and a ship body and without requiring a mother ship to meet strict requirements, adapts to various sea conditions, and is safe.

IPC Classes  ?

• B63B 21/00 - Tying-upShifting, towing, or pushing equipmentAnchoring

Abstract

The present invention relates to the technical field of electrochemical catalysis and provides a ZIF-8-based nickel-iron-nitrogen-doped carbon material electrocatalyst having three functions, a preparation method therefor and application thereof.The ZIF-8-based nickel-iron-nitrogen-doped carbon material electrocatalyst having three functions provided in the present invention has a core-shell structure; the core layer is composed of nanoparticles containing iron and nickel elements, and the shell layer is composed of a nitrogen-doped carbon material. The core-shell structure of the electrocatalyst provided by the present invention can accelerate the electron transfer efficiency during a reaction process; the doping of iron, nickel, and nitrogen changes the electronic structure and morphology of the carbon material, so that the conductivity and catalytic active sites of the catalyst are improved. Therefore, the electrocatalyst provided by the present invention exhibits excellent multifunctional electrocatalytic performance, has good methanol tolerance and cycle stability, and has potential application value in technologies related to fuel cells, electrolysis of water, etc.

IPC Classes  ?

• B01J 31/22 - Organic complexes
• B01J 27/26 - Cyanides
• B01J 23/745 - Iron
• B01J 23/755 - Nickel
• H01M 4/90 - Selection of catalytic material

Abstract

Disclosed in the present invention is a method for preparing a cationic antimicrobial polypeptoid polymer simulating a natural antimicrobial peptide structure, characterized by simulating the natural antimicrobial peptide structure, and introducing a positively charged hydrophilic group and an alkyl chain hydrophobic group into a polypeptoid molecule, so that the polypeptoid has the dual advantages of both antimicrobial properties and the peptoid molecule itself. The present invention adjusts antimicrobial properties and cytotoxicity of a polymer by adjusting the content of an alkyl chain on a molecule chain of the polymer, achieving the regulation of the antimicrobial selectivity of a polypeptoid molecule.

IPC Classes  ?

• C08G 69/42 - Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen

Abstract

This application provides an intelligent robot for cleaning and mending a net cage and a method of using the intelligent robot, including: a control system, a main body, an attraction module, a motion module, a cleaning module and a mending module. The main body includes a streamlined pressure casing, and a drive mechanism and a water ballast tank which are located in the pressure casing. The attraction module includes electromagnets which are symmetrically provided at a bottom of the pressure casing. The motion module includes first and second motion mechanisms which are symmetrically provided at opposite sides of the pressure casing. A traveling path of the first motion mechanisms is perpendicular to a traveling path of the second motion mechanisms. The intelligent robot achieves cleaning and mending for both sides of the net cage, and is simple to operate, safe, high-efficient, economical and convenient.

IPC Classes  ?

• B08B 13/00 - Accessories or details of general applicability for machines or apparatus for cleaning
• B63C 11/52 - Tools specially adapted for working underwater, not otherwise provided for
• B08B 9/36 - Cleaning of containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans, are brought the apparatus cleaning by using brushes
• A46B 13/02 - Brushes with driven brush bodies power-driven
• B29C 73/04 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements
• B29L 28/00 - Nets or the like

Abstract

The present invention discloses a saline glycerine wastewater treatment system and technology. The whole technological process mainly includes a reaction process, an evaporation process, a crystallization process, a filtration process and a drying process. The present invention first proposes the use of an “ammonia-alkali reaction principle” to treat high-salt glycerine wastewater, which mainly solves the problem of treating a large amount of calcium chloride-containing glycerine wastewater produced in the production process of propylene oxide and epichlorohydrin in chlor-alkali industry, and places emphasis on solving the problems that low value-added calcium chloride produced in the wastewater treatment process of a traditional method has low quality, is basically accumulated as solid waste and is difficult to treat, and chloride ions have adverse effects on the biochemical process of wastewater treatment. By-products of high-quality calcium carbonate and ammonium chloride products have high economic benefits and social environmental protection benefits.

IPC Classes  ?

• C02F 9/00 - Multistage treatment of water, waste water or sewage
• B01D 1/26 - Multiple-effect evaporating
• B01D 9/00 - Crystallisation
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
• C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
• C02F 3/00 - Biological treatment of water, waste water, or sewage
• C02F 101/12 - Halogens or halogen-containing compounds
• C02F 101/34 - Organic compounds containing oxygen
• C02F 103/36 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups from the manufacture of organic compounds

Abstract

The present invention is directed to the deficiencies that a vertical body of a supercritical fluid reactor is mostly suitable for small experimental devices and the manual operation of a horizontal tank body apparatus is not conducive to safe production and industrialization, and provides a fully automatic opening and closing horizontal supercritical fluid foaming apparatus. Said apparatus mainly consists of a tank body assembly, a locking assembly, an end cover assembly and a material frame; the tank body is placed horizontally, the tank body assembly, the locking assembly and the end cover assembly are sequentially arranged, a hydraulic device respectively controls the movement of an end cover and a clamp hoop to open and lock the end cover, and the material frame and a material guiding frame and an inner tank track are in a rolling fit by means of wheels. The tank body of the present invention adopts a horizontal structure, and the material frame adopts a wheel-type design, facilitating material loading and unloading operations; and the tank body is opened and locked in an automated manner, improving operation efficiency and operation safety. The present invention is applicable to supercritical industrial production of polymer materials.

IPC Classes  ?

• B01J 3/02 - Feed or outlet devices therefor

Abstract

The present invention provides a micro-nano structure formed by self-assembling a compound represented by formula (I), an isomer thereof, a pharmaceutically acceptable salt, a hydrate or a solvate in an aqueous solution, a preparation method for the micro-nano structure, and use thereof. The micro-nano structure has the advantages of having high photothermal conversion efficiency, good photothermal stability, good photothermal effect and photodynamic effect, being easily degraded, and having high safety, and can be passively targeted to tumor sites, having a broad prospect in the diagnosis and treatment of cancers and skin diseases. (I)

IPC Classes  ?

• C07D 405/08 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing alicyclic rings
• C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
• C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
• C07D 493/08 - Bridged systems
• C07D 417/08 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing alicyclic rings
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61P 35/00 - Antineoplastic agents
• A61P 17/00 - Drugs for dermatological disorders

Abstract

An electromagnetic induction heating device for surfacing and preheating a rotor surface of an internal mixer, comprising a rotor to be welded (1). A plurality of electromagnetic induction heating devices (3) are installed at an inner part of the rotor to be welded by means of support legs (2), and the electromagnetic induction heating devices are distributed annularly at equal intervals at the inner part the rotor to be welded. Two ends of an electromagnetic induction heating device are respectively mounted with a left claw disk (5) and a right claw disk (6) by means of claws (4), and a protective pipeline (7) is axially arranged in the middle of the right claw disk. The electromagnetic induction heating device has a fast heating speed, high efficiency, an extremely low metal burning rate, and a low heating cost, and employs closed-loop control. The induction heating may perform real-time and accurate automatic control according to a current state of a workpiece being heated.

IPC Classes  ?

• B23K 13/01 - Welding by high-frequency current heating by induction heating

Abstract

A thermosetting polymer additive manufacturing apparatus, comprising a moulding connecting base and a latex atomising spray mechanism, the latex atomising spray mechanism being provided with a horizontal connecting base, a heating vulcanisation mechanism and a moulding coating mechanism being arranged in parallel on the horizontal connecting base, the latex atomising spray mechanism comprising a heating evaporation outer shell and a mist nozzle, one side of the mist nozzle being provided with a feeding pipeline and a latex feeding barrel, the other side of the mist nozzle being provided with a gas delivery pipeline and a pressurising pump, an emulsion dispersion short pipe being sleeved over the tail end of the feeding pipeline, the inside of the tail end of the emulsion dispersion short pipe being provided with quadrangular fan blades, a pressurising stepped pipe being sleeved over the tail end of the gas delivery pipeline, the inner surface of the heating evaporation outer shell being provided with a coating panel, and the inner surface of the coating panel being provided with a plurality of sets of heating resistance wires; the present solution has a simple structure and high preparation efficiency, is environmentally friendly and energy-saving, uses the principle of atomising spray to form a uniform latex thin film layer, reduces the temperature of vulcanisation, and increases the efficiency of vulcanisation, and thereby improves the production quality of the thermosetting polymer.

IPC Classes  ?

• B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
• B29C 64/209 - HeadsNozzles
• B29C 64/255 - Enclosures for the building material, e.g. powder containers
• B29C 64/295 - Heating elements
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

Disclosed is a method for flocculating fresh latex, comprising firstly, slowly adding fresh latex into a seawater-like flocculant under stirring and continuing stirring for 20-40 minutes after complete addition of the fresh latex, reacting the fresh latex and the seawater-like flocculant at 40-60ºC for 1-3 hours, and then allowing the reaction to cool naturally to 15-35ºC to obtain a latex clot; and subsequently, rinsing the latex clot with 300 mL of deionized water, and then placing the latex clot in an open mill and a drying machine successively to conduct dehydration and drying, thus obtaining natural rubber. The method has the following advantages: firstly, the seawater-like flocculant is inexpensive, readily available, and environmentally friendly; secondly, the requirement for equipment is low and conventional equipment will suffice, and the reaction conditions are mild and do not cause corrosion of equipment; thirdly, no irritating smell is generated during the production process, reducing the impact on operators, and being friendly to the environment; and fourthly, the impact of weather, fresh latex quality and a non-tapping period, amongst other factors, on the continuous production of natural rubber can be overcome.

IPC Classes  ?

• C08C 1/15 - Coagulation characterised by the coagulants used
• C08C 1/14 - Coagulation
• C08C 1/16 - Coagulation in floc form

Abstract

Provided are a method for preparing poly(γ-butyrolactone) with a high molecular weight, and poly (γ-butyrolactone) prepared by the method. The method comprises: subjecting γ-butyrolactone to polymerization in a catalytic system to obtain the poly(γ-butyrolactone), wherein the catalytic system comprises: an initiator, a catalyst and urea, wherein the catalyst is at least one of an alkali metal, an alkali metal compound, and an organophosphazene compound.

IPC Classes  ?

• C08G 63/08 - Lactones or lactides
• C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
• C08G 63/87 - Non-metals or inter-compounds thereof

Abstract

A dynamic stabilizer for a ship and a method. The dynamic stabilizer comprises a pressure block (1). The bottom of the pressure block (1) is supported by an elastic mechanism (3). The pressure block (1) is symmetrically connected to one end of a plurality of stretching mechanism in the circumferential direction, and the other end of each stretching mechanism is connected to a steering gear. The steering gear is mounted on the upper part of a base (10) by means of a supporting seat (9). The stretching mechanisms are controlled by the steering gear to retract or stretch, and the pressure block (1) exerts pressure on the elastic mechanism (3) to increase ship stability. The dynamic stabilizer for a ship solves the problem of pitching of the hull caused by current agitation during start, acceleration or high speed sailing of the ship and the problem of sudden violent rolling of the hull during marine operation, so that the ship can obtain an anti-rolling effect in a dynamic state. Moreover, the operation is simple and no complicated calculation is required.

IPC Classes  ?

• B63B 39/02 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
• F16F 15/06 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with metal springs

Abstract

Disclosed are a preparation method of alumina ceramic and an application thereof. The preparation method comprises: S1: adding an alumina powder and a sintering aid powder to a deionized water solvent, then adding a pore structure regulator, and ball milling same to obtain a mixed slurry; S2: freezing the mixed slurry and then placing same in a freeze dryer for shaping same to obtain a well shaped biscuit; S3: subjecting the biscuit to an adhesive removal treatment so that organic matter is fully removed, so as to obtain a sample; and S4: sintering the sample to obtain the alumina ceramic. The prepared alumina ceramic can be used for increasing the surface flashover voltage of an insulating material.

IPC Classes  ?

• C04B 35/10 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide

Abstract

A modified semi-conductive composite, comprising modified fast ion conductor having cation holes. The preparation method for the modified semi-conductive composite comprises: adding the modified fast ion conductor having cation holes to the semi-conductive composite to obtain the modified semi-conductive composite.

IPC Classes  ?

• C01G 45/12 - Complex oxides containing manganese and at least one other metal element

Abstract

1-6 cycloalkylamino, unsubstituted or substituted arylamino, 1-6 heterocycloalkyl together with N attached thereto.

IPC Classes  ?

• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• C07F 9/6581 - Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and nitrogen atoms with or without oxygen or sulfur atoms, as ring hetero atoms
• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
• C07F 9/6593 - 1,3,5-Triaza-2,4,6-triphosphorines

Abstract

Provided by the present invention are a compound and a preparation method therefor. The compound is a compound of formula (I) or a stereoisomer, a geometric isomer, a tautomer, an oxynitride, a hydrate or a solvate of the compound of the formula (I). (I)

IPC Classes  ?

• C08G 63/664 - Polyesters containing oxygen in the form of ether groups derived from hydroxycarboxylic acids

Abstract

A comprehensive performance optimization design method for a pentamaran comprises the following steps: constructing a pentamaran model according to a structural design parameter of a pentamaran; establishing a mathematical model for the pentamaran model, and performing hydrodynamic performance analysis; designing a physical model according to an experiment condition, preliminarily calculating a parameter, and modifying the mathematical model; configuring side hulls of the pentamaran as inclined side hulls having a small angle of attack, and optimizing a layout of the inclined side hulls; performing comparison on bow shapes for the pentamaran, and analyzing resistance performances of the different bow shapes; and determining an optimized pentamaran model, and performing experimental analysis on stability and kinetic characteristics of the optimized pentamaran model. The method performs a simulation experiment and a physical model experiment on the mathematical model of a pentamaran model to provide an optimization solution for a structure of a pentamaran.

IPC Classes  ?

• B63B 9/02 - Methods of designing, building, maintaining, converting, refitting, repairing, or determining properties of, vessels, not otherwise provided for using towing tanks or model basins for designing

Abstract

An interface discharge detection apparatus and a method therefor, belonging to the field of discharge detection. The apparatus comprises a cable (1) and a cable accessory (2), an interface being formed between the two. A discharging end (41) of a first electrode (4) is located at a first end (31) of the interface (3), and a receiving end (51) of a second electrode (5) is located at a second end (32) of the interface (3). The discharging end (41) of the first electrode (4) and the receiving end (51) of the second electrode (5) are opposingly arranged, and a distance is formed between the two. The first electrode (4) is also provided with a voltage-loading end (42), and the second electrode (5) is connected to a detection module (6). The corresponding interface discharge detection method is used for detecting whether discharge occurs at the interface.

IPC Classes  ?

• G01R 31/12 - Testing dielectric strength or breakdown voltage

Abstract

A discharge channel regulation method, wherein a thin film (2) having a nanopore structure is wrapped on a pin (102) of a needle electrode (1), and a wrapping outlet (3) for a current to pass through is arranged on the pin (102). Discharge channel regulation is achieved by adjusting the angle of the wrapping outlet (3), and discharge direction regulation is more accurate.

IPC Classes  ?

• G01R 31/16 - Construction of testing vesselsElectrodes therefor

Abstract

Disclosed are a semiconductor charge emission test method and apparatus, belonging to the field of charge emission tests. The method comprises: S1: loading a voltage from a power source end (1) to a first electrode (2), and then successively transmitting same to a semiconductor (3), a sample (4) and a second electrode (5), wherein the process forms a circuit loop, and a hollow area (25) is formed in the first electrode (2); S2: continuing to load the voltage to an apparatus, and disconnecting a power source until a required test time is reached; S3: removing the apparatus, and retaining the sample (4); and S4: measuring charges in a first area (41) of the sample (4). The apparatus comprises a power source end (1) and a first electrode (2) connected thereto, wherein a hollow area (25) is formed in the first electrode (2), the first electrode (2) is in contact with a semiconductor (3), the semiconductor (3) is in contact with a sample (4) to be tested, and the sample (4) is placed on a second electrode (5). The present invention is used for testing whether a semiconductor (3) emits charges to a sample (4), thereby facilitating the improvement or rational use of materials.

IPC Classes  ?

• G01R 31/26 - Testing of individual semiconductor devices
• G01R 29/24 - Arrangements for measuring quantities of charge

Abstract

A gas-assisted rubber wet mixing preparation apparatus is disclosed, including a rack, a reactor is fixedly mounted below the rack; a mixing chamber in an ellipsoidal shape is provided inside the reactor; the reactor is provided with a plurality of feed ports, the feed ports are provided at an included angle with respect to the horizontal plane; spray guns cooperating with the feed ports are fixedly mounted on an outer wall of the reactor, a material storage tank and a gas supply device are connected to the spray gun; the spray guns and the material storage tanks are in one-to-one correspondence, and the spray guns are connected to the corresponding material storage tanks respectively; a discharge port is further provided below the reactor, and a receiver tray is provided below the discharge port.

IPC Classes  ?

• B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
• B29B 7/76 - MixingKneading using other mixers or combinations of dissimilar mixers with stream impingement mixing head
• B29B 15/04 - Coagulating devices
• B29B 15/00 - Pretreatment of the material to be shaped, not covered by groups

Abstract

Provided in the present invention are a graphene-loaded silver ferrite (Ag-MFe2O4) nano composite material, and a preparation method and an application thereof, the nano composite material being a composite of graphene-loaded silver ferrite heterogeneous nano particles. The preparation method may use a process of directly loading the silver ferrite hetereogenous nano particles onto graphene, or may also use a process of first loading the particles onto graphene oxide and then reducing same. As an electrocatalyst, the graphene-loaded silver ferrite nano composite material has good stability, resistance to methanol toxicity, high electrical conductivity and high catalytic activity; the preparation method thereof is simple and low cost, the reaction conditions are easily controlled, and the obtained material has a uniform morphology, good dispersibility, and can easily be expanded to large scale production.

IPC Classes  ?

• B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
• B01J 21/18 - Carbon
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B01J 37/04 - Mixing

Abstract

A fracture cave-type reservoir oil/water selective self-expanding rubber plugging agent, a preparation method therefor, and an application thereof. The plugging agent comprises the following raw materials, in parts by weight: 100 parts of nitrile rubber, 50-110 parts of a water-absorbing resin, 5-15 parts of an oil-swelling resin, 15-30 parts of a reinforcing agent, 0.5-2 parts of a softening agent, 2-5 parts of an accelerant, 3-6 parts of zinc oxide, and 0.5-3.5 parts of a vulcanising agent. The plugging agent can be applied to high-temperature high-salt high-mineralisation fracture cave-type carbonate rock reservoir deep plugging.

IPC Classes  ?

• C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
• C09K 8/58 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
• E21B 33/12 - PackersPlugs

Abstract

A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1,4-structure (TBIR) and an apparatus for implementing the method. The production method includes: pumping a predetermined amount of a butadiene and an isoprene into a polymerization reactor, and performing bulk polymerization in the presence of a catalyst to obtain TBIR; performing extrusion, devolatilization, granulation and drying on the produced TBIR, and then packaging the produced TBIR; and separating unreacted monomers by a recovery and separation device followed by separately refining the unreacted monomers, and then returning the unreacted monomers to a batching device or a storage tank. The production apparatus has a recovery and refining unit, a polymerization unit, a post-treatment unit and a utility unit. By the production apparatus and the production method industrial production of TBIR by bulk polymerization is realized.

IPC Classes  ?

• C08F 236/06 - Butadiene
• C08F 236/08 - Isoprene
• C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used
• C08F 2/02 - Polymerisation in bulk
• C08F 2/42 - Polymerisation using regulators, e.g. chain terminating agents using short-stopping agents
• C08F 4/642 - Component covered by group with an organo-aluminium compound
• C08C 4/00 - Treatment of rubber before vulcanisation, not provided for in groups
• B01D 3/00 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
• B01D 3/14 - Fractional distillation
• B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes