Abstract

The present invention relates to the technical field of geothermal systems, and provides a flexible heat exchanger-based tunnel seepage water energy utilization system and method. The system comprises a seepage water pipe system, an overflow water pipe system, and an energy storage tank. The interior of the energy storage tank is divided into multiple interconnected subspaces, and each subspace is internally provided with a flexible heat exchanger. The seepage water pipe system and the overflow water pipe system each comprise upper and lower systems, an upper seepage water pipe system is paired with a lower overflow water pipe system, a lower seepage water pipe system is paired with an upper overflow water pipe system, and different paired systems are activated depending on the season. Tunnel seepage water enters the subspaces of the energy storage tank by means of the seepage water pipe system, exchanges heat with the flexible heat exchangers, and then is discharged by means of the overflow water pipe system. The present invention fully utilizes the energy contained in seepage water to provide cooling energy or heat energy for terminal units in a building, is environmentally friendly, economical and practical, and has the advantages of high heat exchange efficiency and long service life.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 10/30 - Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids

Abstract

A superconducting motor quench detection method and apparatus based on rotational symmetry of a motor. The method comprises: acquiring terminal voltages of each group of superconducting magnets in a superconducting motor, wherein the superconducting motor is divided into at least two unit motors in advance on the basis of the rotational symmetry of the motor, and superconducting magnets at corresponding positions are selected from the at least two unit motors to serve as one group of superconducting magnets (101); calculating an absolute value of the difference between the terminal voltages of each group of superconducting magnets (102); and determining whether the absolute value exceeds a preset threshold, and if so, determining that the superconducting magnets are in a quench state (103). According to the method, induced voltage coupled with the terminal voltages of the superconducting magnets in the superconducting motor is eliminated, improving the reliability and accuracy when a voltage-based quench detection method is applied to the superconducting motor, and the method is convenient to implement, without the need for additional modifications for the topological structure of the superconducting motor.

IPC Classes  ?

• G01R 31/34 - Testing dynamo-electric machines
• G01R 33/12 - Measuring magnetic properties of articles or specimens of solids or fluids

Abstract

The present invention belongs to the technical field of intelligent welding, provides a welding fixture for box-type parts, an intelligent production line, and a welding method. The welding fixture comprises a two-dimensional moving apparatus, and a plurality of lifting apparatuses arranged on the two-dimensional moving apparatus, each lifting apparatus includes a first electromagnet arranged at the first end far away from the two-dimensional moving apparatus, and a second electromagnet arranged at a second end close to the two-dimensional moving apparatus, the first electromagnet is provided with three mutually perpendicular magnetic surfaces, and the second electromagnet is provided with two mutually perpendicular magnetic surfaces, which realizes a three-dimensional moving adjustment by arranging a plurality of lifting apparatuses on a two-dimensional moving apparatus, the box-type parts with different specifications can be accurately positioned and held through the cooperation of the plurality of the first electromagnets and the plurality of the second electromagnets.

IPC Classes  ?

• B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
• B23K 37/02 - Carriages for supporting the welding or cutting element
• B23K 37/047 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps

Abstract

The present invention relates to the technical field of concrete material monitoring. Disclosed are a method for monitoring fibers inside concrete, a system, a medium, and a product. The method comprises: acquiring concrete to be monitored; using a capacitance sensor to measure a capacitance value of the concrete to be monitored; inputting the capacitance value of the concrete to be monitored into a dielectric constant calculation formula to obtain a dielectric constant of the concrete to be monitored; acquiring a dielectric constant of target concrete and a dielectric constant of fiber-free concrete; and inputting the dielectric constant of the concrete to be monitored, the dielectric constant of the target concrete and the dielectric constant of the fiber-free concrete into a prediction model to obtain a measurement fiber orientation efficiency coefficient of the concrete to be monitored, and using the measurement fiber orientation efficiency coefficient as a monitoring result of the concrete to be monitored. The present invention can achieve accurate, rapid, and quantitative monitoring of fibers inside concrete.

IPC Classes  ?

• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance

Abstract

The present invention relates to a seepage erosion test system designed to evaluate soil erosion under controlled conditions. The system includes an acrylic rectangular pipe featuring a circular opening at its lower end. Attached to this is a soil sample pushing sub-device that encompasses a cylindrical sample tube, a piston, and four pore pressure gauges. The piston, which moves vertically within the tube. Additionally, the system incorporates a graduated cylinder pressurizing sub-device consisting of a graduated cylinder for water, a push plate, and a second pushing device for hydraulic pressurization. Water flow is regulated through a hose connected at one end to the piston and equipped with a valve for control. An air release valve and an air pressure sensor are also included for monitoring pressurization. The setup is completed with a three-way valve connected to the pipe, facilitating precise control of water flow and pressure during testing.

IPC Classes  ?

• G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials

Abstract

222 during carbonation curing, the carbonation uniformity, the carbonation efficiency and the carbon sequestration rate, and also achieves the lightweight characteristic of the carbide slag cement-based material.

IPC Classes  ?

• C04B 38/10 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by using foaming agents
• C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
• C04B 111/40 - Porous or lightweight materials

Abstract

The present invention relates to the technical field of composite materials. Provided are a glass fiber-reinforced epoxy resin composite material and a preparation method therefor. In the present invention, an epoxy silane coupling agent solution is used for performing surface modification on glass fibers. An epoxy silane coupling agent contains a hydrolyzable group and an epoxy group. Silicon hydroxyl generated when the hydrolyzable group is hydrolyzed can be connected to the glass fibers, so as to effectively modify the surfaces of the glass fibers. The epoxy group can react with an epoxy resin matrix, thereby improving the infiltration effect of the epoxy resin on the glass fibers and improving the bonding performance of the interface of the glass fiber-reinforced epoxy resin composite material, and thus improving the mechanical properties of the glass fiber-reinforced epoxy resin composite material. The epoxy resin is cured and modified by using a functional curing agent or nanoparticles, so as to improve the ductility or strength of the epoxy resin, thereby improving the mechanical properties of the prepared glass fiber-reinforced epoxy resin composite material.

IPC Classes  ?

• C08J 5/08 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C08K 7/14 - Glass
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/36 - Silica

Abstract

Provide are a carbon fiber field bicycle and a manufacturing method thereof. The frame includes a frame formed by the integrated solidification of carbon fiber. The frame includes a front triangular structure composed of an upper tube, a lower tube, and a seat tube; and a rear triangular structure composed of a seat branch tube, a transmission branch tube, and a seat tube. The fiber layers corresponding to the tube fittings forming the front triangular structure is distributed along the axial direction of the corresponding tube fittings. In view of the current problem of poor strength and rigidity of track bicycles, a carbon fiber integrated frame is adopted as the main structure, and the fiber layer distribution of each tube component and key node position of the frame is optimized to ensure continuous distribution of carbon fibers and improve the strength of track bicycles.

IPC Classes  ?

• B62K 19/16 - Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly of plastics
• B62K 3/04 - Frames having a substantially-horizontal top bar

Abstract

The disclosure belongs to the technical field of building materials, and in particular relates to an in-situ synergistically modified and reinforced cement-based composite material and use thereof. The in-situ synergistically modified and reinforced cement-based composite material includes a cementitious material, a polymer monomer, an initiator, a cross-linking agent and a whisker, wherein functional groups of the polymer monomer include a carbon-carbon double bond and a carboxyl group, and the whisker includes at least one selected from the group consisting of an organic whisker and an inorganic non-metallic whisker. The surface modification and adsorption binding of the whisker by the in-situ polymerization of the polymer monomer could improve the dispersibility and binding property of the whisker in the cement matrix, thereby adequately exerting the densification and reinforcement effect of the whisker on cement matrix. Moreover, the whisker and the polymer network formed by in-situ polymerization of the polymer monomer are interpenetratingly bonded, which combines the stiffness and dimensional stability of the whisker with the flexibility and toughness of the polymer macromolecule material, thereby enhancing the reinforcement effect of in-situ polymerization on the flexural strength of the cement-based material and reducing the adverse effect of in-situ polymerization on the compressive strength of the cement-based composite material.

IPC Classes  ?

• C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 14/38 - Fibrous materialsWhiskers
• C04B 22/14 - Acids or salts thereof containing sulfur in the anion, e.g. sulfides
• C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
• C04B 40/02 - Selection of the hardening environment
• C04B 103/00 - Function or property of the active ingredients
• C04B 111/50 - Flexible or elastic materials

Abstract

The present invention relates to a delayed-gelation plugging gel for well cementation, and a preparation method therefor and the use thereof. The delayed-gelation plugging gel for well cementation comprises 2-3 parts of anionic polyacrylamide, 3-4 parts of cationic acrylamide, 1 part of a stabilizer, 1 part of a cross-linking agent, and 6 parts of distilled water, wherein the stabilizer is obtained by reacting citric acid with disodium ethylenediaminetetraacetate under the action of an initiator; and the cross-linking agent is obtained by reacting chromium lactate with chromium nicotinate under the action of azodiisobutylamidine hydrochloride and tetramethylethylenediamine. For the purpose of well cementation, a delayed-gelation plugging gel is provided. The plugging gel is pH-sensitive. By prolonging the gelation time of the gel that originally gelates fast at a certain temperature, a preflush system to which the delayed-gelation plugging gel is added can effectively plug a lost circulation zone when arriving at a destination formation, thereby laying a foundation for the subsequent operation of cement injection.

IPC Classes  ?

• C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
• C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing organic binders only
• E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like

Abstract

A sealing gel with delayed gelation for well cementation, its preparation method, and application are provided. The sealing gel with delayed gelation for well cementation includes 2-3 parts of anionic polyacrylamide, 3-4 parts of cationic acrylamide, 1 part of stabilizer, 1 part of cross-linking agent and 6 parts of distilled water; the stabilizer is obtained by the reaction of citric acid and ethylenediaminetetraacetic acid disodium under the action of initiator, the cross-linking agent is obtained by the reaction of chromium lactate and chromium nicotinate under the action of azo diisobutyl amidine hydrochloride and tetramethylethylenediamine. Based on the purpose of well cementation, the sealing gel has pH sensitivity, which prolongs the gelation time of the gel that is originally rapidly formed at a certain temperature, so that it can be added to the pre-liquid system.

IPC Classes  ?

• C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing organic binders only
• C08F 8/30 - Introducing nitrogen atoms or nitrogen-containing groups
• C08K 5/17 - AminesQuaternary ammonium compounds

Abstract

The present application relates to the technical field of marine antifouling, and provides a solid-state super-smooth surface, and a construction method therefor and the use thereof. The chemical composition of the solid-state super-smooth surface constructed in the present application is a linear polyfluorosiloxane, which bonds with substrates by means of chemical covalent bonds. By means of firm bonding via chemical covalent bonds, the problem of a traditional biomimetic lubricating oil for super-smooth surfaces being easily washed away in underwater environments is solved, and longer lasting biofouling control performance can be achieved. The solid-state super-smooth surface provided by the present application is of a linear structure and has reliable underwater transparency, the underwater visible-light transmittance of the material being up to 95% or higher.

IPC Classes  ?

• C09D 183/08 - Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
• C09D 5/16 - Anti-fouling paintsUnderwater paints

Abstract

Provided in the present disclosure are a downhole double-source-driven while-drilling distributed power supply system and an operation method therefor. The system comprises: an outer housing extending in an axial direction; and a vortex street generation unit, piezoelectric vibration energy harvesting units and a distributed energy storage unit, which are arranged in the outer housing along the axial direction. Each piezoelectric vibration energy harvesting unit comprises an inner housing, a base beam and a piezoelectric strain gauge, wherein an outer wall of each inner housing is fixedly connected to an inner wall of the outer housing; fixed ends of the plurality of base beams are evenly fixed to the inner wall of the inner housing along the circumference, and there is an inclination angle between a free end and an axis so as to provide a circulation space for a drilling fluid; a piezoelectric strain gauge is loaded on each base beam; and during drilling of a drilling tool and impact of the drilling fluid, the base beams are configured to bear mechanical energy generated by drilling vibration and kinetic energy generated by vortex street disturbance, and the piezoelectric strain gauges are configured to convert the mechanical energy and the kinetic energy into electric energy. During drilling, the electric energy is continuously generated along with continuous vibration of the drilling tool and continuous impact of the drilling fluid, thus achieving distributed collection and continuous supply of downhole electric energy.

IPC Classes  ?

• E21B 41/00 - Equipment or details not covered by groups
• E21B 47/00 - Survey of boreholes or wells
• H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators

Abstract

The present disclosure provides a bionic Australian thorny devil grinding wheel, a grinding device, and a preparation process, and relates to the field of grinding equipment. For the problem of the poor effect of conveying grinding fluid by a grinding wheel at present, imitating semi-open capillary channels and a honeycomb structure on the skin of the Australian thorny devil, prisms with isosceles trapezoidal bottom surfaces are arranged on a matrix in sequence to form directional liquid self-conveying flow channels and a superhydrophilic honeycomb-like hexagonal distribution structure.

IPC Classes  ?

• B24D 5/10 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor with cooling provisions, e.g. with radial slots
• B24D 5/02 - Wheels in one piece
• B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for

Abstract

A thin-wall structure with a toothed surface is provided, wherein the thin-wall structure with the toothed surface is a single-layer thin-wall structure with the toothed surface that can be unfolded and folded, or a multi-layer thin-wall structure with the toothed surface that can be unfolded and folded, the thin-wall structure with the toothed surface has a toothed surface for transmitting interlayer shear forces or meshing transmission. The unfolding and folding mechanism of a thin-wall structure with a toothed surface comprises a roller component, a compression wheel component, and an elastic adjustment mechanism integrated together by a frame, the elastic adjustment mechanism is used to maintain an elastic compression force of the roller component and the compression wheel component. The present disclosure can effectively solve the problems of out-of-plane instability deformation and easy creep deformation during folding, and easy jamming during unfolding of existing thin-wall rollable structures.

IPC Classes  ?

• E04C 3/00 - Structural elongated elements designed for load-supporting
• B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed

Abstract

Provided is a traction device for lower limb fracture, which comprises: a supporting assembly (10), the supporting assembly (10) comprising a driving assembly (15); a vertical support (20), the vertical support (20) being connected to the supporting assembly (10); a traction assembly (30), the traction assembly (30) being sleeved on the vertical support (20); and a telescopic rod (40), one end of the telescopic rod (40) being connected to the supporting assembly (10), and the other end thereof being connected to the traction assembly (30). The traction device has the following advantages: enabling unified synchronous adjustment of the supporting assembly (10) and the traction assembly (30) and thereby allowing precise adjustment of the traction force, thus guaranteeing ideal alignment and positioning during reduction of fracture; satisfying individualized patient needs in the using process and preventing complications caused by long-time traction; and allowing height and angle to be adjustable, so that the device's applicability across populations is expanded, complications such as a local blood circulation disorder caused by extended use can be prevented, and meanwhile, the supporting effect and the patient comfort are also improved.

IPC Classes  ?

• A61F 5/042 - Devices for stretching or reducing fractured limbsDevices for distractionsSplints for extension or stretching
• A61F 5/04 - Devices for stretching or reducing fractured limbsDevices for distractionsSplints
• A61G 7/075 - Rests specially adapted therefor for the limbs
• A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor

Abstract

A method for preparing a styrene-acrylate siloxane interpenetrating polymer network (IPN) composite emulsion is provided. The styrene-acrylate siloxane IPN composite emulsion prepared by the method can effectively improve the compatibility of the styrene-acrylate component and the siloxane component, and realize the gradient orientation distribution and ordered microphase separation of various styrene-acrylate molecules and siloxane molecules, thereby improving the synergistic working performance of a styrene-acrylate coating and a siloxane coating, and endowing the composite protective emulsion with excellent rheological properties, waterproof properties, anti-ion penetration properties, anti-carbonization properties, acid and alkali corrosion resistance, and anti-aging properties.

IPC Classes  ?

• C08F 283/12 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polysiloxanes
• C08F 2/00 - Processes of polymerisation
• C08F 2/26 - Emulsion polymerisation with the aid of emulsifying agents anionic
• C08F 2/30 - Emulsion polymerisation with the aid of emulsifying agents non-ionic
• C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents
• C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
• C08K 3/36 - Silica
• C08K 9/08 - Ingredients agglomerated by treatment with a binding agent
• C09D 5/02 - Emulsion paints
• C09D 151/08 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCoating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

A production line and a method for welding the automobile rear floor panels are provided. In view of the current problem that the position of the wheel housing of the rear floor workpiece affected by the reinforcement structure is not convenient to weld directly, the rounded rectangle workpiece conveying path is adopted. When the direction is adjusted during the workpiece conveying process, the posture relative to the previous station also changes. The welding mechanism of the previous station or the welding mechanism of the next station is used to weld the wheel housing position of the workpiece and weld from the lower part of the wheel housing upward. The molten pool and welding slag after welding are not easy to attach to the workpiece under the action of gravity to cause defects, and can reduce interference with the workpiece structure, and improve the welding efficiency.

IPC Classes  ?

• B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
• B21D 53/88 - Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
• B23K 37/02 - Carriages for supporting the welding or cutting element
• B23K 37/047 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
• B62D 25/20 - Floors or bottom sub-units
• B23K 101/00 - Articles made by soldering, welding or cutting

Abstract

An intelligent production line for turning tool bit cavities and an application method are provided, which solve the problem that a production line in the prior art has low working efficiency. The intelligent production line has the beneficial effects of a compact arrangement structure, higher safety and improved working efficiency. The intelligent production line for turning tool bit cavities includes a robot. Material tables and at least one machining center are arranged around the robot. A transfer station used for transferring materials is arranged between the machining center and the robot. A protective fence is arranged between a position above the material tables and the robot, and between the transfer station and the robot. The robot is provided with a mechanical arm including a base plate. The base plate is provided with at least one clamping jaw and fixed with a laser detecting unit for detecting the materials.

IPC Classes  ?

• B23Q 7/04 - Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
• B23B 13/02 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a single working-spindle
• B23P 23/06 - Metal-working plant comprising a number of associated machines or apparatus
• B23Q 3/08 - Work-clamping means other than mechanically-actuated
• B23Q 7/10 - Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of magazines
• B23Q 7/14 - Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
• B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards
• B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
• B23Q 41/02 - Features relating to transfer of work between machines
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
• B25J 19/02 - Sensing devices

Abstract

The disclosure belongs to the technical field of line contact lubrication characteristic test measurement, and provides a roller lubrication performance measuring and testing device, including a frame and two arc-shaped guide rails arranged in the frame, the frame is arranged on a workbench, the arc-shaped guide rails are slidably matched with the frame, inner arc surfaces of the two arc-shaped guide rails are oppositely arranged, and the two arc-shaped guide rails are fixedly connected; a roller rotatably connected to a bottom one of the arc-shaped guide rail; a contact ring arranged between the inner arc surfaces of the two arc-shaped guide rails; a first driving mechanism used for driving the contact ring to rotate, a second driving mechanism used for driving one of the arc-shaped guide rails to slide relative to the frame, and an image acquisition device used for acquiring oil film images on the surface of the roller.

IPC Classes  ?

• G01N 33/30 - Oils for lubricating properties
• F16C 13/00 - Rolls, drums, discs, or the likeBearings or mountings therefor

Abstract

A process equipment system of hydraulic oil circuit blocks and an automated production line thereof, which relates to the field of mechanical processing technology. In view of the problem of low production efficiency in the positioning and processing of hydraulic oil circuit blocks, based on the six-point positioning principle, the workpiece is achieved the six-point positioning by the support components, positioning devices, and clamping devices on the upper layer of the base. The clamping device is capable to move along the chain, so as to adjust and change the clamping position, and can achieve processing five surfaces through one-time clamping of oil circuit blocks, improving positioning accuracy and processing efficiency, meeting the needs of automated production.

IPC Classes  ?

• F16M 11/42 - Stands or trestles as supports for apparatus or articles placed thereon with arrangement for propelling the support
• B65G 57/112 - Stacking of articles by adding to the top of the stack the articles being stacked by direct action of the feeding conveyor the conveyor being adjustable in height
• F16B 2/10 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
• F16M 11/24 - Undercarriages with or without wheels changeable in height or length of legs, also for transport only

Abstract

A machining and positioning system for aerospace irregular parts and a discrete intelligent production line therefor are provided, which relates to the field of aerospace irregular part machining. In view of the problem that complex repeated positioning and poor positioning stability is required during the transportation and processing of aerospace irregular parts, a self-positioning device, a clamping device, and a support device are used to form a follow-up clamping and positioning system for the irregular part casing, reducing complex repeated positioning. The support block of the support device can fit to the inner wall of the casing, collect the support force using piezoelectric plates, and feedback and adjust the thrust of the support block based on the magnitude of the cutting radial force, maintaining stable support of the support block for the casing and meeting production needs.

IPC Classes  ?

• B23Q 1/25 - Movable or adjustable work or tool supports

Abstract

27152372715237271566271515 are connected to each other, such that the structure is more stable in a sodium-ion intercalation/deintercalation process, thereby improving the long cycle stability of the material.

IPC Classes  ?

• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
• C01G 23/00 - Compounds of titanium

Abstract

A biomimetic desert beetle self-transporting bone microgrinding head and a preparation process thereof, and relates to the field of medical instruments. The microgrinding head includes a hydrophobic matrix or a matrix having a hydrophobic plating layer. The matrix has a hydrophobic surface on which several hydrophilic abrasive particles are uniformly distributed. A process for preparing the microgrinding head is: selecting diamond abrasive particles and conducting oxidization treatment of the diamond abrasive particles; forming a hydrophobic matrix by scanning a surface of the matrix with a laser; or alternatively obtaining a hydrophobic plating layer by a chemical modification method; and combining the oxidized diamond abrasive particles with the hydrophobic matrix or the hydrophobic plating layer by electroplating to obtain a microgrinding head. The microgrinding head utilizes to achieve an effect of being capable of cooling rapidly and capturing cooling medium droplets and effectively transporting the droplets to a grinding arc region.

IPC Classes  ?

• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61B 17/00 - Surgical instruments, devices or methods
• C25D 3/12 - ElectroplatingBaths therefor from solutions of nickel or cobalt
• C25D 5/36 - Pretreatment of metallic surfaces to be electroplated of iron or steel
• C25D 5/50 - After-treatment of electroplated surfaces by heat-treatment
• C25D 15/00 - Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires

Abstract

Disclosed in the present invention are a composite catalyst-based ceramic membrane assembly, and a preparation method therefor and a use thereof. The ceramic membrane assembly comprises a ceramic membrane, a composite catalyst in a ceramic membrane channel, and a water discharging block and a closed block secured at two ends of the ceramic membrane; and one end of the water discharging block is provided with a water pumping hole communicated with a surface of the ceramic membrane. The composite catalyst in the ceramic membrane channel is formed by injecting a slurry into the ceramic membrane channel and then calcining same. The slurry is obtained by adding attapulgite and activated carbon to a copper nitrate solution and impregnating same. According to the present invention, a catalyst capable of activating persulfate can be packaged into the ceramic membrane channel; the obtained ceramic membrane assembly is combined with persulfate to achieve efficient removal of organic pollutants by catalytic oxidation while filtering. Compared with the ozone-activated carbon technology, the amount of activated carbon used can be reduced, the impact on the turbidity of the effluent is reduced, the removal rates of the odor, the permanganate index, the ammonia nitrogen can be increased, and the indicators such as disinfection by-products are reduced, and therefore advanced treatment of drinking water and sewage is implemented.

IPC Classes  ?

• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 101/30 - Organic compounds
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 23/889 - Manganese, technetium or rhenium
• B01D 71/02 - Inorganic material

Abstract

A vaccine based on a human cytomegalovirus-coded immediate early protein IE, comprising one of the following vaccines: an IE1 adenovirus vector vaccine, an IE2 adenovirus vector vaccine, an IE1 recombinant protein vaccine, and an IE2 recombinant protein vaccine, wherein the amino acid sequence of a mutant IE1-mut of a wild-type IE1 is as shown in SEQ ID NO. 1, and the amino acid sequence of a mutant IE 2-mut of a wild-type IE2 is as shown in SEQ ID NO. 2. The vaccine based on the human cytomegalovirus-coded immediate early protein IE can identify and kill brain cancer cells, and can be widely applied to the preparation of drugs for treating glioma.

IPC Classes  ?

• A61K 39/245 - Herpetoviridae, e.g. herpes simplex virus
• A61K 39/12 - Viral antigens
• A61P 35/00 - Antineoplastic agents

Abstract

Provided in the present invention are a dynamic collection device for an oil film and temperature distribution in a grinding zone and an operating method thereof. A spectroscope and a 45-degree flat mirror are utilized to carry out optical imaging of the permeation and infiltration of the grinding fluid in a grinding zone during a grinding process, and a video signal imported into a high-speed camera is converted into a digital signal processed by a CCD photosensitive element, and a dynamic image is imported for dynamic collection. Infrared radiation emitted from the grinding zone is reflected through the 45-degree flat mirror, and transmitted to the thermal imaging camera, and the signal is transmitted to an internal infrared detector. The infrared detector adjusts and amplifies the received signal and outputs it to an infrared thermal imaging chip. After image processing, the temperature distribution image is imported for dynamic collection.

IPC Classes  ?

• B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
• B24B 41/06 - Work supports, e.g. adjustable steadies
• B24B 49/14 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the temperature during grinding
• B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

Abstract

A building construction robot is provided. The building construction robot includes a vehicle body, a feeding assembly is arranged in the vehicle body, a mounting frame is fixedly connected to one end of the vehicle body, and the mounting frame is located at a discharge end close to the feeding assembly. One end of a vibrating assembly is fixedly connected to one end of a top of the vehicle body, and the other end of the vibrating assembly passes through a middle part of the mounting frame. A leveling assembly is arranged at one end, away from the vehicle body, of the mounting frame, a measuring part is arranged at a top of the mounting frame, and a moving part is arranged at a bottom of the vehicle body.

IPC Classes  ?

• E04G 21/04 - Devices for both conveying and distributing
• E04F 21/24 - Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
• E04G 21/08 - Internal vibrators

Abstract

A microbial preparation and a method for remedying a polycyclic aromatic hydrocarbons (PAHs)-contaminated soil are disclosed. The microbial preparation contains Pseudomonas sp. KW-2 with a deposit number of CGMCC No. 29017. In the soil remediation method, an oxidizing agent is added to the PAHs-contaminated soil for pre-oxidation treatment, where the oxidizing agent is selected from the group consisting of Fenton's reagent, hydrogen peroxide, sodium persulfate, potassium permanganate, and a combination thereof; a carbon source or a nitrogen source added to reach a carbon-to-nitrogen ratio of 100:5-20, and the microbial preparation is introduced for microbial remediation, where the carbon source is selected from the group consisting of glucose, fructose, sucrose, starch, and a combination thereof; and the nitrogen source is selected from the group consisting of ammonium chloride, ammonium nitrate, potassium nitrate, sodium nitrate, and a combination thereof.

IPC Classes  ?

• B09C 1/10 - Reclamation of contaminated soil microbiologically or by using enzymes
• B09C 1/08 - Reclamation of contaminated soil chemically
• C12N 1/20 - BacteriaCulture media therefor
• C12R 1/38 - Pseudomonas

Abstract

Provided are early-strength and quick-setting ultra-high performance concrete (UHPC), and a preparation method and use thereof. The early-strength and quick-setting UHPC includes, in parts by mass: 110 parts to 180 parts of a red mud, 70 parts to 80 parts of a silica fume, 130 parts to 290 parts of a cement, 400 parts to 500 parts of a quartz sand, 10 parts to 15 parts of a water-reducing agent, 80 parts to 100 parts of water, and 50 parts to 75 parts of a steel fiber. The preparation method includes: subjecting the silica fume, the cement, the quartz sand, and the red mud to first mixing to obtain a first premix; subjecting the first premix, the water, and the water-reducing agent to second mixing to obtain a second premix; and subjecting the second premix and the steel fiber to third mixing to obtain the early-strength and quick-setting UHPC.

IPC Classes  ?

• C04B 28/04 - Portland cements
• B28B 1/08 - Producing shaped articles from the material by vibrating or jolting
• C04B 14/06 - QuartzSand
• C04B 14/48 - Metal
• C04B 18/04 - Waste materialsRefuse
• C04B 18/14 - Waste materialsRefuse from metallurgical processes
• C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
• C04B 40/02 - Selection of the hardening environment
• C04B 103/30 - Water reducers, plasticisers, air-entrainers

Abstract

A method for filling carbide blades in cutter head by using a carbide blade cutter head filling device. The carbide blade cutter head filling device includes a feeding unit, a storage unit, a loading unit and a discharging unit which are arranged successively. The output end of the feeding unit is matched with the input end of the storage unit through the guide mechanism. The output end of the storage unit faces a conveying tray of the loading unit. The conveying tray is provided with a plurality of group of transition holes for accommodating blades. A receiving mechanism for accommodating a cutter head is arranged below the falling pull plate of the discharging unit. The falling pull plate adjusts the communication and isolation between the transition hole and the cutter head in the receiving mechanism by changing the relative position of the falling pull plate and the transition hole.

IPC Classes  ?

• B23P 15/28 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
• B65G 47/04 - Devices for feeding articles or materials to conveyors for feeding articles

Abstract

The present invention discloses a blockchain-based Industrial Internet of Things (IIoT) data management system and method, where the system includes a physical layer, an edge layer, a network interface layer and a cloud layer; the physical layer includes a plurality of different IIoT device monitoring systems; the edge layer is configured to build an IIoT blockchain network; the cloud layer includes cloud servers which are configured to be deployed in a real blockchain network environment to improve performance and effectiveness of the blockchain network. The present invention can effectively solve the problem of parameter optimization lag in industrial production applications.

IPC Classes  ?

• H04L 9/00 - Arrangements for secret or secure communicationsNetwork security protocols
• G06F 17/16 - Matrix or vector computation
• G16Y 40/10 - DetectionMonitoring
• G16Y 40/50 - SafetySecurity of things, users, data or systems

Abstract

A manganese carbonate-supported ferrihydrite material preparation method, in which manganese sulfate and ammonium bicarbonate are respectively dissolved to obtain a manganese sulfate solution and an ammonium bicarbonate solution, and the manganese sulfate solution is added with ferrihydrite, dropwise added with the ammonium bicarbonate solution and reacted under magnetic stirring to obtain a precipitate. The precipitate is washed with distilled water and dried in a drying oven to obtain the manganese carbonate-supported ferrihydrite material. A method for treating wastewater polluted by arsenic (As) and antibiotics by using the manganese carbonate-supported ferrihydrite material is also provided.

IPC Classes  ?

• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used
• C01G 45/00 - Compounds of manganese
• C02F 3/10 - PackingsFillingsGrids
• C02F 101/10 - Inorganic compounds
• C12N 1/20 - BacteriaCulture media therefor

Abstract

A method for preparing a biogenic manganese oxide (BMO)@sponge biomaterial, in which a divalent manganese ion solution and a sponge carrier are added to a pre-sterilized culture medium, and then a manganese oxidizing bacterium with an accession number of ATCC 23483 is inoculated. The culture medium was cultured and freeze-dried to obtain the BMO@sponge biomaterial. This application further provides a method for treating an antibiotic-containing wastewater, in which a BMO@sponge biomaterial prepared by such method and a peroxymonosulfate (PMS) added to the wastewater. The PMS is activated by the BMO@sponge biomaterial to generate active substances such as hydroxyl radicals, sulfate radicals and singlet oxygen radicals, which can efficiently degrade the antibiotic into CO2 and water through a series of physical and chemical reactions and free radical chain reactions.

IPC Classes  ?

• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used
• C02F 101/34 - Organic compounds containing oxygen
• C12N 1/20 - BacteriaCulture media therefor

Abstract

An intelligent separation method of peanut kernel and red coat, feeding peanuts to be removed red coats into a device for a gas explosion of the red coats of the peanuts, to complete a preliminary separation of kernels and the red coats of the peanuts; feeding the primarily separated kernels and peanut red coats of the peanuts into the drying device to fully separate the red coats from the kernels; delivering the fully separated peanut kernels and red coats of the peanuts into a negative pressure adsorption device to collect respectively the fully separated kernels and red coats of the peanuts with different densities and qualities by a negative pressure adsorption mode, finally obtaining the kernels of the peanuts without the red coats, and the red coats of the peanuts respectively.

IPC Classes  ?

• A23N 12/08 - Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
• A23N 5/00 - Machines for hulling, husking, or cracking nuts
• A23N 5/01 - Machines for hulling, husking, or cracking nuts for peanuts
• A23N 5/08 - Machines for hulling, husking, or cracking nuts for removing fleshy or fibrous hulls of nuts

Abstract

A method and device for separating and recovering heavy metal ions through membrane-forming mineralization fixation, applicable in the domain of acid wastewater treatment containing heavy metal ions. The process involves mixing composite mineral particles with heavy metal acidic wastewater, then conducting a first hydration reaction under static conditions. This leads to adsorption, precipitation, and crystallization of heavy metal ions in the wastewater via a colloidal liquid membrane, resulting in particles coated with a mineralized membrane. These particles exhibit a gap between the mineralized membrane and their core. The next step is to separate these coated particles and recover them. The preparation of composite mineral particles involves mixing sodium carbonate/sodium silicate, bentonite, carbide slag, and water, followed by a second hydration reaction and subsequent granulation, aging, and dehydration condensation. The particle sizes of both bentonite and carbide slag are maintained at ≤74 m.

IPC Classes  ?

• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 101/20 - Heavy metals or heavy metal compounds

Abstract

The present invention relates to the technical field of composite materials. Provided is a preparation method for a resin matrix toughened with a silane coupling agent solution-modified nanomaterial. A specific silane coupling agent (KH560) solution is used to modify the nanomaterial, which is then used to toughen the resin matrix. KH560 has two reaction groups, which can effectively modify the surface of the nanomaterial and reduce agglomeration, while a molecular chain connecting to the surface of the nanomaterial contains an epoxy group capable of reacting with resin. By means of the molecular chain, efficient bonding between the inorganic nanomaterial and the resin matrix is achieved, the compatibility between the nanomaterial and the resin is improved, and the toughening effect of the nanomaterial on the resin is fully implemented. Moreover, in a curing process, the epoxy group does not occupy a reaction bond position between a curing agent and the resin, improving the post-curing crosslink density of the resin, and further improving the mechanical properties of the resin matrix.

IPC Classes  ?

• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 63/10 - Epoxy resins modified by unsaturated compounds
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/36 - Silica
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances

Abstract

The present invention relates to the technical field of heavy metal ion-containing acidic wastewater treatment, and provides a method and apparatus for film-formation, mineralization, fixation, separation and recovery of heavy metal ions. The method comprises the following steps: mixing composite mineral particles and heavy metal acidic wastewater, carrying out a first hydration reaction under a standing condition, and using the obtained colloidal liquid film to carry out adsorption-precipitation-crystallization on heavy metal ions in the heavy metal acidic wastewater to obtain particles with mineralized films on the outer layers, wherein there is a spacing between each particle and the mineralized film on the outer layer; and separating the mineralized films on the outer layers from the particles, and then respectively recovering the mineralized films and the particles. A preparation method for the composite mineral particles comprises the following steps: mixing sodium carbonate/sodium silicate, bentonite, carbide slag and water, carrying out a second hydration reaction, and then sequentially carrying out granulation, aging and dehydration condensation to obtain the composite mineral particles, the particle sizes of the bentonite and the carbide slag being independently less than or equal to 74 μm. According to the present invention, film-formation, mineralization, fixation, separation and recovery of heavy metal ions, and the treatment of waste by waste can be achieved.

IPC Classes  ?

• C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
• C02F 1/62 - Heavy metal compounds
• C02F 101/20 - Heavy metals or heavy metal compounds

Abstract

Disclosed are composite mineral particles, a preparation method therefor and the use thereof, and a method for treating manganese-containing acidic wastewater to recover manganese oxides. The composite mineral particles are prepared by subjecting preparation raw materials to a hydration reaction, roasting and dehydration condensation, wherein the preparation raw materials comprise bentonite, carbide slag and an excitant. When the composite mineral particles are used for treating manganese-containing acidic wastewater, OH-is continuously released, such that the surfaces of the composite mineral particles are negatively charged to adsorb Mn2+22 surface precipitate, which is in contact with dissolved oxygen in the water to generate an autocatalytic oxidation effect, and further by means of the synergistic effect of adsorption-surface precipitation-autocatalytic oxidation by means of contact-aggregation and self-growth, residual composite mineral particles with thin-shell-shaped manganese oxides on the surfaces thereof are obtained, or aggregated and settled manganese oxides and residual composite mineral particles are obtained, thereby realizing the preparation of manganese oxides by means of mineralization and recovery of Mn2+ in the manganese-containing acidic wastewater, and purification treatment of the manganese-containing acidic wastewater.

IPC Classes  ?

• B01J 20/12 - Naturally occurring clays or bleaching earth
• 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 are a titanium sol carbon sequestration additive and a preparation method and use thereof, and a method for carbon sequestration of a cement-based material. The method for preparing the titanium sol carbon sequestration additive includes: mixing titanium tetraisopropanolate with an ammonia aqueous solution to obtain a first mixture, subjecting the first mixture to hydrolysis to obtain a hydrolysis solution, and drying the hydrolysis solution to obtain a titanium dioxide powder; mixing the titanium dioxide powder with sodium polyacrylate and a methyldiethanolamine (MDEA) aqueous solution to obtain a second mixture, and subjecting the second mixture to amination to obtain a solution A; mixing water with ethanol to obtain a solution B; and mixing the solution A and the solution B with a catalyst to obtain a mixed solution, and subjecting the mixed solution to solation to obtain the titanium sol carbon sequestration additive.

IPC Classes  ?

• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
• B01D 53/62 - Carbon oxides
• 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
• C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
• C04B 41/45 - Coating or impregnating
• C04B 41/48 - Macromolecular compounds
• C04B 41/63 - Macromolecular compounds

Abstract

Disclosed are a dual-scale toughened cement-based composite material and use thereof. The cement-based composite material includes a cementitious material, a polymer monomer, an initiator, a crosslinking agent, and fibers, wherein functional groups of the polymer monomer include a carbon-carbon double bond and a carboxyl group; and the fibers include steel fibers and/or synthetic fibers, the synthetic fibers including one or more selected from the group consisting of polyvinyl alcohol fibers, polypropylene fibers, glass fibers, and carbon fibers.

IPC Classes  ?

• C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 16/06 - Macromolecular compounds fibrous
• C04B 22/12 - Acids or salts thereof containing halogen in the anion, e.g. calcium chloride
• C04B 22/14 - Acids or salts thereof containing sulfur in the anion, e.g. sulfides
• C04B 24/16 - Sulfur-containing compounds
• C04B 28/04 - Portland cements
• C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
• C04B 103/00 - Function or property of the active ingredients

Abstract

A system for adjusting and controlling temperature of an intelligent new energy farmhouse integrated with tunnel wind and solar energy. The system includes a house, a solar chimney system, a solar power supply system and a tunnel wind system. The house includes walls and a sunroom is mounted on outside of one of the walls; the house is provided with detection module being connected to master control module; the solar chimney system includes first Venturi tube provided on top of the house and connected to solar chimney which extends longitudinally along inside of the one of the walls; the solar power supply system is provided on top of the house; and the tunnel wind system comprises a water cellar with duct assembly provided inside the water cellar, one end of the duct assembly is connected to forced draft system and the other end is connected to interior of the house.

IPC Classes  ?

• F24D 5/00 - Hot-air central heating systemsExhaust-gas central heating systems
• E04B 1/76 - Heat, sound or noise insulation, absorption, or reflectionOther building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
• F24D 5/02 - Hot-air central heating systemsExhaust-gas central heating systems operating with discharge of hot air into the space or area to be heated
• F24F 8/108 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
• F24F 8/22 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
• F24F 11/63 - Electronic processing
• F24F 110/10 - Temperature
• F24F 110/12 - Temperature of the outside air
• F24F 110/20 - Humidity
• F24F 110/22 - Humidity of the outside air
• F24F 110/52 - Air quality properties of the outside air
• H02S 10/12 - Hybrid wind-PV energy systems
• H02S 20/23 - Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures

Abstract

The present invention relates to the technical field of pharmaceuticals, in particular to a composition for improving immunity and the use thereof. The inventor of the present invention attempts to use nicotinamide mononucleotide in the improvement of the immunity of immunodeficient individuals, and finds that nicotinamide mononucleotide can improve the immunity of immunodeficient mice via tRNA-dependent amino acid response pathways within a specific effective dose range.

IPC Classes  ?

• A61K 31/706 - Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom
• A23L 33/13 - Nucleic acids or derivatives thereof
• A23L 33/175 - Amino acids
• A61P 37/04 - Immunostimulants

Abstract

Disclosed are a method for improving a surface quality of an alloy micro-area via a supersaturated film and use thereof. The method includes: adding nickel chloride to a sodium chloride-ethylene glycol electrolyte until the electrolyte is saturated, and conducting electrochemical machining.

IPC Classes  ?

• B23H 3/08 - Working media
• B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing

Abstract

The present disclosure relates to a multi-factor coupling cooperative early warning method and system for fatigue crack propagation of a steel structure. The multi-factor coupling cooperative early warning method includes: obtaining multi-physical field monitoring data of a dangerous source distribution point of a steel structure project, and obtaining a monitoring time series data set; establishing an intuitionistic fuzzy matrix of the monitoring time series data set; obtaining uncertainties of indexes by using a grey relation coefficient between the monitoring indexes of physical fields; taking obtained uncertainties as basic probability assignments of evidences; preprocessing the evidences through weighed averaging, and obtaining corrected basic probability assignments; obtaining basic probability assignments of fatigue crack propagation of the steel structure at different development stages; and determining a fatigue crack propagation grade of the dangerous source distribution point of the steel structure project through the basis probability assignment.

IPC Classes  ?

• G01N 33/2045 - Defects
• G06N 5/01 - Dynamic search techniquesHeuristicsDynamic treesBranch-and-bound
• G06N 5/048 - Fuzzy inferencing

Abstract

A device for supplying and recovering a minimal quantity lubricant in a magnetic field-assisted abrasive grinding, including a grinding wheel guard assembly, including a grinding wheel guard, grinding wheel, and wind deflector; a magnetic worktable mounted on the guard, and a magnetic clamp on the worktable; a controllable magnetic field assembly, including a permanent magnet and a first guide rail mechanism mounted on the deflector, the magnet being connected to the mechanism and to a recovering and filtering device; a controllable nozzle assembly, connected to the deflector on an opposite side of the magnetic field assembly, including a nozzle connected to a linear motion mechanism; and a controlling and monitoring assembly, including a vision camera on the worktable, connected to a system control box. The magnetic nanofluid can exert the optimal lubricating properties and cooling performance under the magnetic field-assisted abrasive grinding, and the magnetic nanoparticles can be further recycled.

IPC Classes  ?

• B24B 55/03 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
• B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
• B24B 55/04 - Protective covers for the grinding wheel

Abstract

The present disclosure relates to the technical field of protective coatings, and provides a graphene oxide (GO)-modified styrene-acrylic Pickering emulsion and a composite emulsion, and preparation methods and use. In the present disclosure, GO is added during polymerization of a styrene-acrylic monomer, and the GO is attached to an interface of a styrene-acrylic core while forming the styrene-acrylic core; and the GO is “stitched” at the interface of the styrene-acrylic core by a silane coupling agent, thus giving the GO a better dispersion effect. After adding a shell phase emulsion, a part of the styrene-acrylic core that is not completely wrapped by a GO sheet may be grafted with a shell phase, and cross-linking between a core phase and the shell phase can further enhance a steric stability of the GO; and the GO can fully connect the styrene-acrylic core with a siloxane shell, improving the molecular configuration of a siloxane component. In the composite emulsion, GO has desirable dispersibility and is not easy to agglomerate, such that the composite emulsion has an excellent performance and can significantly improve the durability of a cement-based material.

IPC Classes  ?

• C08K 3/04 - Carbon
• C08F 2/22 - Emulsion polymerisation
• C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids

Abstract

The present disclosure relates to an ERT/ECT dual-modality combined three-dimensional sensor. A cover box is sheathed with a shielding box, a plurality of small round holes are formed in the top surface and the side surfaces of the cover box, ERT electrodes are arranged in the small round holes, and ECT electrodes are arranged at the outer sides of the ERT electrodes. The ERT electrodes are connected to an ERT data acquisition box via electrode leads, and the ECT electrodes are connected to an ECT data acquisition box via the electrode leads. An integrated cuboid design in line with the concrete structure is employed. Meanwhile, the dimensions, combination modes, placement modes and positions, supporting structures, shielding devices, electrode leads and leading-out modes of two sets of electrode arrays are subjected to comprehensive optimization design to achieve three-dimensional visual nondestructive monitoring of the moisture intrusion process in the concrete structure.

IPC Classes  ?

• G01N 33/38 - ConcreteLimeMortarGypsumBricksCeramicsGlass
• G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
• G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

Abstract

The present disclosure provides a performance testing method and system for a polycarboxylate superplasticizer in a concrete system. An interface model is constructed based on a calcium silicate hydrate (C—S—H) gel model and a molecular dynamics model of a polycarboxylate superplasticizer, which can cover complexity of a cement particle interface and variability of the polycarboxylate superplasticizer, and can also establish a link between a microstructure of the polycarboxylate superplasticizer and a macroscopic fluidity of a cement across multiple scales. Meanwhile, friction resistance is accurately calculated based on the constructed interface model to accurately test a performance of the polycarboxylate superplasticizer, thereby shortening a screening cycle of the polycarboxylate superplasticizer and improving a performance optimization efficiency.

IPC Classes  ?

• G01N 33/38 - ConcreteLimeMortarGypsumBricksCeramicsGlass
• C04B 24/32 - Polyethers, e.g. alkylphenol polyglycolether
• C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone

Abstract

A robot welding method based on semantic feature clustering; the method comprises: acquiring an image of a workpiece, and generating an image training sample set; performing semantic annotation on the image of the workpiece to generate a semantic training sample set; establishing a semantic clustering model, and training same by using the image training sample set and the semantic training sample set; by using the trained semantic clustering model, identifying an image of a workpiece to be welded, so as to obtain data of the workpiece to be welded; on the basis of the data of the workpiece to be welded and by using parameterized online programming, generating a welding program for the workpiece to be welded; and on the basis of the welding program, executing welding of the workpiece to be welded. By means of the robot welding method based on semantic feature clustering, neither teaching programming nor offline programming is required, thereby improving the precision, efficiency, universality and flexibility. Further provided is a robot welding system based on semantic feature clustering.

IPC Classes  ?

• B25J 9/16 - Programme controls
• B25J 11/00 - Manipulators not otherwise provided for

Abstract

A method for fabricating the three-dimensional comb-tooth-shaped groove array surface, the surface of the bearing is first etched with grooves having a certain depth by means of femtosecond lase, then a PTFE film is impressed and attached to the surface of the inner ring of the bearing, the position of a laser focus is adjusted to focus on the lower surface of the PTFE film, the same pit is scanned repeatedly, ripple characteristic stripes occur on the surface of the inner ring of the bearing while the film gasifies instantly under the action of laser ablation heating, a part of polymer material in the gasified part is adsorbed to a mechanical surface in each pit under the action of mechanical interlocking, and a super-oleophobic PTFE surface is obtained in each groove.

IPC Classes  ?

• F16C 33/58 - RacewaysRace rings
• B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
• F16C 33/64 - Special methods of manufacture
• F16C 33/66 - Special parts or details in view of lubrication

Abstract

A differentiated real-time injection-production optimization adjustment method of an intelligent injection-production linkage device belongs to the field of oil reservoir injection-production technologies. The method includes: initializing networks; building an injection-production environment model; by an agent, reading an initial state of an injection-production environment; writing a file by an injection-production policy network; obtaining state data of the moment t+1; reading a next state and an economic net present value within the time step; assigning the next state to the current state until a to-be-optimized production period is completed; by batch training on the model, updating a parameter of the environment agent model; updating a parameter of the action evaluation network and a parameter of the injection-production policy network; repeating the above steps until an optimal model is obtained; based on the stored optimal model, linking the intelligent injection-production device to obtain state information of the oil reservoir.

IPC Classes  ?

• E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons
• G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
• G06N 3/092 - Reinforcement learning

Abstract

The present invention relates to the technical field of preparation of catalysts. Disclosed are a catalyst for removing chlorobenzene by using a bimetal-loaded modified molecular sieve, and a preparation method. Transition metal elements Cr and Ce are used as active components of the catalyst; Cu@ZSM-5 is formed by introducing Cu into the skeleton of ZSM-5 by means of an in-situ synthesis method; in the molecular sieve Cu@ZSM-5, Cu enters the skeleton of ZSM-5 and replaces Si in the ZSM-5 structure, and Cu is introduced into ZSM-5, so that the effect of ZSM-5 in practical application is enhanced without damaging the original structure; and before bimetallic loading, acid treatment is performed on the carrier Cu@ZSM-5 to improve the acid site of the carrier so as to enhance an oxidation-reduction capability. The catalyst prepared in the present invention can show good low-temperature catalytic activity and the characteristics of chlorine poisoning resistance during catalytic oxidation of chlorobenzene, and is beneficial to efficient degradation of chlorobenzene.

IPC Classes  ?

• B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique
• F23G 7/07 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material

Abstract

Provided is a new coupled-inductor boosting quasi-Z source inverter circuit, which relates to the field of DC-AC conversion. The new coupled-inductor boosting quasi-Z source inverter circuit comprises an energy storage module, a magnetic coupled inductor boosting module and a switch module, wherein the energy storage module is used for storing a voltage, the magnetic coupled inductor boosting module is used for adjusting the voltage, which is stored in the energy storage module, and the switch module delivers the adjusted voltage to a load device. An energy storage inductor in an original Boost circuit is replaced with a magnetic coupled inductor boosting module, such that a duty ratio and a turns ratio can both be freely adjusted, a higher voltage gain is obtained in the case of a relatively low duty ratio, and current and voltage stresses are reduced in the case of the same voltage gain.

IPC Classes  ?

• H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

The present disclosure provides a method and system for predicting pile tip resistance based on a damage constitutive model of mudstone and relates to the technical field of geotechnical engineering. In view of the existing problem of difficult calculation of quantitative analysis on the bearing performance of a dynamic driven pile of a mudstone foundation and the damage characteristics of mudstone around the pile, a damage constitutive model of mudstone with a damage variable D determined based on a stress state and associated with a rock failure criterion is established; model parameters are determined based on results of a triaxial test; a relationship between a critical damage variable and a confining pressure is established; and the damage characteristics of the mudstone around the dynamic driven pile are analyzed, whereby pile tip resistance is calculated. The requirements of quantitative analysis on the damage characteristics of a pile tip are met.

IPC Classes  ?

• G01N 3/60 - Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
• G01N 3/08 - Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
• G01N 33/24 - Earth materials
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces

Abstract

A method and a system for temperature measurement of fluid in a pipe, an electronic device and a storage medium are provided, and relates to the technical field of temperature measurement in a pipe. The method includes: determining fixed parameters of an object to be measured, a flow rate of the fluid, a noise variance and an observation variance; determining a predicted temperature at a current moment according to an optimal internal pipe temperature and a flow rate of the fluid at a previous moment; determining a covariance at the current moment according to the noise variance and an optimal covariance at the previous moment; determining a weight coefficient at the current moment; and determining an optimal internal pipe temperature at the current moment, thereby expanding the application range of temperature measurement in a pipe.

IPC Classes  ?

• G01K 13/02 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
• G01K 17/20 - Measuring quantity of heat conveyed by flowing media, e.g. in heating systems based upon measurement of temperature difference across a radiating surface, combined with ascertainment of the heat-transmission coefficient
• G01N 25/18 - Investigating or analysing materials by the use of thermal means by investigating thermal conductivity

Abstract

The present disclosure provides use of a graphene oxide/butyl acrylate/silane composite emulsion as an anti-shrinkage agent of a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule reacts with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, thereby slowing a water loss in the mortar of the cement-based material and avoiding cracking caused by drying shrinkage. Butyl acrylate can be dehydrated to form polymer fibers with a spatial network to fill pores of a cement paste, thereby limiting the shrinkage of the mortar. Graphene oxide has a relatively large specific surface area and oxygen-containing functional groups on a surface, which can provide growth sites for hydration products, and promote the hydration products to form a regular and dense structure in the form of a template, thus ensuring a strength of the cement-based material.

IPC Classes  ?

• C04B 24/04 - Carboxylic acidsSalts, anhydrides or esters thereof
• C04B 14/04 - Silica-rich materialsSilicates
• C04B 24/32 - Polyethers, e.g. alkylphenol polyglycolether
• C04B 24/42 - Compounds having one or more carbon-to-silicon linkages
• C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
• C04B 103/40 - Surface-active agents Dispersants
• C04B 103/56 - Opacifiers

Abstract

Anti-corrosion and low-heat-conduction annulus protection fluid for deep-sea oil and gas exploitation and a preparation method thereof are provided. The annulus protection fluid includes: a polymer solution: 100 parts, clear water III: 100 parts to 500 parts, a thermally-insulating material: 20 parts, a corrosion inhibitor: 1 part to 7 parts, and xanthan gum: 0.3 parts to 0.5 parts, wherein the polymer solution is a mixture of a polymer and clear water II in a mass ratio of 1:(22-28); and the polymer includes the following raw materials: clear water I: 100 parts, an acrylamide: 15 parts to 20 parts, 2-2-methylpropanesulfonic acid: 5 parts to 10 parts, a crosslinking agent: 0.1 parts to 0.3 parts, and an initiator: 0.5 parts to 1 part. The annulus protection fluid exhibits excellent thermal insulation performance and corrosion resistance, and avoids the generation of hydrates and the decomposition of hydrate layers at a wellhead.

IPC Classes  ?

• C09K 8/54 - Compositions for in situ inhibition of corrosion in boreholes or wells

Abstract

A building construction robot, which comprises: a vehicle body (1), the vehicle body (1) having disposed therein a feeding assembly, one end of the vehicle body (1) having a mounting frame (14) securely connected thereto, and the mounting frame (14) being located at a material output end near the feeding assembly; one end of the top of the vehicle body (1) is fixedly connected to one end of a vibration assembly, and the other end of the vibration assembly passes through the middle of the mounting frame (14); the end of the mounting frame (14) furthest from the vehicle body (1) is provided with a leveling assembly, the top of the mounting frame (14) is provided with a measurement part, and the bottom of the vehicle body (1) is provided with a moving part. The present device can simultaneously achieve concrete pouring, vibrating, and leveling, thereby increasing production efficiency and quality.

IPC Classes  ?

• E04G 21/04 - Devices for both conveying and distributing
• E04G 21/02 - Conveying or working-up concrete or similar masses able to be heaped or cast
• E04G 21/08 - Internal vibrators

Abstract

A preparation method for a styrene-acrylate-siloxane interpenetrating polymer network composite emulsion. The styrene-acrylate-siloxane interpenetrating polymer network composite emulsion obtained by using the preparation method can effectively improve the compatibility of the styrene-acrylate component and the siloxane component, realizing the gradient orientation distribution and ordered microphase separation of various styrene-acrylate molecules and siloxane molecules, improving the synergistic working performance of a styrene-acrylate coating and a siloxane coating, and endowing the composite protective emulsion with excellent rheological performance, waterproof performance, ion permeability resistance, carbonization resistance, acid and alkali corrosion resistance, and aging resistance.

IPC Classes  ?

• C09D 133/08 - Homopolymers or copolymers of acrylic acid esters
• C09D 183/04 - Polysiloxanes
• C09D 191/06 - Waxes
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
• C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
• C08F 220/14 - Methyl esters
• C08F 220/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof
• C08F 212/08 - Styrene
• C08F 220/20 - Esters of polyhydric alcohols or phenols
• C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
• C08G 77/04 - Polysiloxanes

Abstract

A method for preparing a nano-modified styrene-acrylic/siloxane graft copolymerized composite emulsion. The prepared composite emulsion has a styrene-acrylic molecule with a glass transition temperature that gradiently changes and a siloxane molecular chain, both of which are bonded together by means of a strong covalent bond, such that the cross-linking degree and compatibility of the styrene-acrylic component and the siloxane component can be effectively improved at a nanoscale level. The emulsion enables a treated cement-based material to simultaneously form a surface protective layer and an internal crystalline waterproof layer, such that the composite protective emulsion is endowed with good rheological properties, waterproof performance, ion permeation resistance, carbonization resistance, acid and alkali corrosion resistance, and aging resistance.

IPC Classes  ?

• C09D 183/10 - Block or graft copolymers containing polysiloxane sequences
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
• C08G 77/442 - Block- or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
• C08F 220/14 - Methyl esters

Abstract

Provided is the use of a silane composite emulsion as an anti-cracking enhancer in a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule react with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, slowing down a water loss inside the mortar of a cement-based material. The dehydration of butyl acrylate forms a network structure, which fills pores of the cement-based material, inhibits shrinkage of the cement-based material, and reduces the cracking caused by the shrinkage. Tetraethoxysilane can undergo hydrolysis at a room temperature to generate nano-silica with a large number of hydroxyl groups on a surface; and the nano-silica can undergo secondary hydration with calcium hydroxide in the cement to form a secondary hydration product C—S—H gel, thereby filling most of voids to make a structure of the cement hydration product denser, to increase a strength of the mortar.

IPC Classes  ?

• C04B 24/42 - Compounds having one or more carbon-to-silicon linkages
• C04B 22/06 - OxidesHydroxides
• C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
• C04B 103/40 - Surface-active agents Dispersants

Abstract

A method with which mechanical properties of the interface of the fiber reinforced thermoplastic resin matrix composite material can be improved by conducting grafting on surfaces of materials. A carbon fiber (CF) and a polymethyl methacrylate resin (PMMA) are subjected to interface modification treatment to introduce active carboxyl groups to the surfaces of the materials. Then, hexamethylene diisocyanate (HDI) is used as a coupling layer for connecting the carboxyl groups on the surfaces of the carbon fiber and on the surfaces of the polymethyl methacrylate resin to form a “molecular bridge”. Accordingly, the interface binding force between the resin and the fiber is improved by chemical grafting. A modified carbon fiber reinforced polymethyl methacrylate composite material sample (CF/PMMA) is prepared by a thin film lamination method, and the composite material sample prepared is subjected to a microscopic verification testing of the validity of the method provided in the present disclosure.

IPC Classes  ?

• B29B 15/12 - Coating or impregnating of reinforcements of indefinite length
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
• B29K 307/04 - Carbon

Abstract

The present invention relates to the field of grinding machining apparatuses, and provides an apparatus for dynamic collection of an oil film and a temperature distribution in a grinding area and a working method thereof. The apparatus comprises a fixture structure, an optical detection system structure, and a magnetic workbench. In the present invention, a spectroscope and a 45-degree plane mirror are used to carry out optical imaging for penetration and infiltration of grinding liquid in a grinding area during grinding machining; a stack detection lens group is used to transmit an image to a high-speed camera so as to convert a video signal into a digital signal; the digital signal is received and then processed by a CCD photosensitive element; and a dynamic image is imported to a computer screen and is dynamically collected. Infrared radiation emitted from a machining area is reflected by the 45-degree plane mirror; the infrared radiation is transmitted to a thermal imaging camera by means of the stack lens group; the signal is transmitted to an internal infrared detector; the infrared detector conditions and amplifies the received signal and then outputs the signal to an infrared thermal imaging chip; and after image processing, a temperature distribution image is imported to the computer screen and dynamically collected.

IPC Classes  ?

• B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
• B24B 55/03 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
• B24B 41/06 - Work supports, e.g. adjustable steadies
• B24B 41/00 - Component parts of grinding machines or devices, such as frames, beds, carriages or headstocks

Abstract

The present disclosure provides a styrene acrylate-siloxane composite emulsion with a core-shell structure, and a preparation method and use thereof, and relates to the technical field of protective coatings. In the present disclosure, a core emulsion is prepared through two-step emulsification with styrene, an acrylate monomer, a first emulsifying agent, a first initiator, a second initiator, an alkaline reagent, and water as raw materials; then a shell emulsion is prepared with a siloxane monomer, a hydroxyl-containing acrylate monomer, an emulsifying agent, and water as raw materials; and then the core emulsion, the shell emulsion, and an initiator are subjected to a grafting reaction to obtain the styrene acrylate-siloxane composite emulsion with a core-shell structure.

IPC Classes  ?

• C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
• C09D 5/08 - Anti-corrosive paints
• C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCoating compositions based on derivatives of such polymers

Abstract

2 precursor, 0.1 to 0.4 parts by weight of a surfactant, 30 to 60 parts by weight of a silane coupling agent and 10 to 40 parts by weight of a polydimethylsilane, an ingredient of the nano-calcium salt solution comprises 2 to 5 parts by weight of a calcium hydroxide, 2 to 5 parts by weight of an acid catalyst and 200 to 500 parts by weight of an alcohol-based organic solvent, which can form a coating layer with higher hydrophobic angle on the concrete surface, reduce the water absorption of the concrete, and is not easy to crack after drying, which has more protective effect and longer service life than the existing TEOS interface agent.

IPC Classes  ?

• C04B 41/49 - Compounds having one or more carbon-to-metal or carbon-to-silicon linkages
• C04B 41/46 - Coating or impregnating with organic materials
• C04B 41/50 - Coating or impregnating with inorganic materials

Abstract

An underwater rapid repair material for marine steel structure comprises: 20 to 50 parts by weight of an alkali activation material, 3 to 12 parts by weight of a fast hardening waterborne polymer curing agent, 2 to 8 parts by weight of a fast hardening waterborne polymer precursor, 30 to 100 parts by weight of an aggregate, 1 to 5 parts by weight of an activator and 3 to 20 parts by weight of a water. The underwater rapid repair material provided by the present invention is not dispersed and segregated in water, with an initial setting time as low as 0.5 hours and a final setting time as low as 1.1 hours, after pouring 3 hours, the compressive strength and flexural strength can reach about 60 MPa and 10 MPa respectively, and has high bonding strength to steel and is not easy to fall off after solidification.

IPC Classes  ?

• C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
• C04B 24/02 - AlcoholsPhenolsEthers
• C04B 103/00 - Function or property of the active ingredients
• C04B 111/74 - Underwater applications

Abstract

The present invention relates to the technical field of fluid energy conversion, and relates to a mechanical device capable of unidirectional rotation in fluids. A main structure comprises a central shaft, stabilizing beams, blades, and a power box; a plurality of blades are fixed onto the central shaft; a plurality of blocker doors are fixed onto a blade frame; each blocker door leaf is capable of rotating freely around a blocker door shaft; each telescopic damper fixed onto a blocker door frame is capable of blocking a blocker door leaf when the telescopic damper extends out, so that the blocker door leaf can only be flipped within a 180° range. Blocker doors that can be freely flipped and are not in axial symmetry and blades are combined for innovation, and dampers on the blocker doors are used in conjunction, so that the entire device is capable of unidirectional rotation in a variety of non-directional fluids, and damage to the device under the influence of extreme weather can be effectively prevented when the fluid speed is too high or extremely unstable; the overall structure of the device has scientific and rational design, is firm and secure, has long service life and a high use value, achieves high energy conversion efficiency, and is environmentally-friendly in application.

IPC Classes  ?

• F03D 3/06 - Rotors

Abstract

A design method for a solar-source heat pump system, a system, and a control method. The solar-source heat pump system comprises a main unit module, solar direct-expansion heat collection modules (5) arranged in an array, and direct-condensation heat storage modules (2) arranged in an array; the solar direct-expansion heat collection modules (5) and the direct-condensation heat storage modules (2) are connected by means of the main unit module; the model selection of the main unit module, the solar direct-expansion heat collection modules (5) and the direct-condensation heat storage modules (2) is designed. Switching is performed between a heat pump heating mode and an auxiliary heating mode by monitoring outdoor solar radiation intensity in real time. By coupling an air-source direct-condensation heat pump and a solar direct-expansion heat pump, the problems of impact on the air-source direct-condensation heat pump caused by frosting and low temperature and poor stability of the solar direct-expansion heat pump are avoided, and remarkable energy saving advantages and high heating temperature stability are achieved.

IPC Classes  ?

• F25B 30/02 - Heat pumps of the compression type

Abstract

A high-precision grasping method of an industrial mold intelligent manufacturing robot, comprising: calibrating a camera, obtaining information of an industrial mold intelligent manufacturing robot and target point information by correcting a lens of the camera, planning a grasping trajectory of the industrial mold intelligent manufacturing robot, and determining a grasping point position; and on this basis, constructing an adaptive cooperative controller, and constructing an adaptive cooperative control model by combining the grasping trajectory and a target grasping point, so as to implement high-precision grasping of the industrial mold intelligent manufacturing robot. The grasping trajectory and the grasping point are determined according to obtained robot position information, and the adaptive cooperative controller is designed, such that high-precision grasping of the industrial mold intelligent manufacturing robot is implemented, thereby providing a reliable exploration foundation for multi-target grasping of industrial mold intelligent manufacturing robots and other research in the field.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators

Abstract

Provided are a nano-titanium dioxide (NT)/biochar (BC) composite, and a preparation method and use thereof, which belong to the technical field of cement-based materials. NT is introduced into a porous structure of the micron-sized BC, which not only addresses the high aggregation of NT, but also reduces Ca(OH)2 size and crystal growth orientation through effects such as filling and nucleation brought by NT in the porous structure of BC. In this way, more C—S—H gels are generated to fill the pores, thereby improving an interfacial transition zone (ITZ), which enhances the mechanical properties such as compressive strength and flexural strength. The NT/BC composite of the disclosure is doped into a cement-based material, which allows that in a surface layer of the cement-based material, CO2 absorption capacity could be improved through carbon sequestration properties and the porous structure of the composite, and the carbonization of the surface layer could be accelerated by hydration accelerating properties of the NT to form a calcium carbonate surface protective layer, thereby improving durability of the cement-based material.

IPC Classes  ?

• C04B 18/02 - Agglomerated materials
• C04B 14/30 - Oxides other than silica
• C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• C04B 40/02 - Selection of the hardening environment

Abstract

An experimental device and method for simulating a subsurface erosion process is disclosed, including a constant-pressure water supply device, a subsurface erosion generator, and a water-soil collection device. The constant-pressure water supply device and the subsurface erosion generator communicate with each other by a pipeline. The constant-pressure water supply device is used to simulate a natural water flow in subsurface erosion. The subsurface erosion generator is used to carry sand and display the occurrence process of water-soil subsurface erosion. The water-soil collection device is used to collect soil and water loss data required for an experiment. In accordance with the experimental device, the water-soil subsurface erosion process can be accurately displayed, a water pressure can be adjusted as needed, and a height between the constant-pressure water supply device and the erosion generator can be adjusted to simulate the terrain.

IPC Classes  ?

• G01V 20/00 - Geomodelling in general

Abstract

An ultrafast laser micro-hole machining method for in-situ hole trimming, which relates to the field of laser micro-hole machining. For the problems of it being difficult to optimize micro-hole geometric shapes and recast layers adhering to hole walls in laser drilling processes, through hole machining is carried out firstly, then reaming modification is carried out, and the geometric shape of a through hole is optimized in two steps, such that a micro-hole with high roundness and small taper and a large-area micro-hole array can be machined. Therefore, the micro-hole size accuracy is ensured, and the machining efficiency is also improved.

IPC Classes  ?

• B23K 26/382 - Removing material by boring or cutting by boring
• B23K 26/70 - Auxiliary operations or equipment

Abstract

The present disclosure provides a risk assessment method of water inrush in tunnels constructed in water-rich grounds. The method includes the following steps: simulating a tunnel excavation process by finite element software MIDAS GTS NX and fluid-structure interaction; according to a research method of control variables, analyzing effects of a groundwater level, an elastic modulus and advanced pipe shed grouting on the stability of surrounding rock, and improving an algorithm of a radial basis function (RBF) neural network using a Grey Relation Analysis (GRA)-based Partitioning Around Medoid (PAM) clustering algorithm to assess risks of water inrush occurring in Qingdao area.

IPC Classes  ?

• G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
• G01V 99/00 - Subject matter not provided for in other groups of this subclass

Abstract

An ultrafine grinding system for rhizome traditional Chinese medicine, which relates to the technical field of traditional Chinese medicine processing. The ultrafine grinding system comprises a coarse grinder and a fine grinder, wherein a feeding elevator is arranged on one side of the coarse grinder, and a screw feeder is arranged between the coarse grinder and the fine grinder. The coarse grinder comprises a coarse grinding base and an upper coarse grinding housing, wherein a mounting space for a coarse grinding rotor is formed inside the coarse grinding base and the upper coarse grinding housing, the coarse grinding rotor is arranged in a coarse grinding cutter assembly, and a coarse grinding screen is arranged on a lower side of the coarse grinding rotor; and the coarse grinding rotor is connected to a first driving mechanism. The fine grinder comprises a fine grinding device, a pneumatic classification device and an ultrafine grinding device, which are sequentially arranged from top to bottom, wherein an annular air bag is arranged on an outer side of the ultrafine grinding device, and the fine grinding device is in communication with the ultrafine grinding device by means of a plurality of falling channels. Coarse grinding, fine grinding, ultrafine grinding, classification and collection can be sequentially carried out on rhizome traditional Chinese medicine to obtain wall-broken micro-powder, thereby improving the grinding efficiency and quality of the rhizome traditional Chinese medicine.

IPC Classes  ?

• B02C 21/00 - Disintegrating plant with or without drying of the material
• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 18/10 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within vertical containers with drive arranged above container
• B02C 18/16 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives Details
• B02C 19/00 - Other disintegrating devices or methods
• B02C 23/18 - Adding fluid, other than for crushing or disintegrating by fluid energy
• B02C 23/16 - Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material

Abstract

The present disclosure provides a multi-factor quantitative analysis method for deformation of a neighborhood tunnel. The method includes the following steps: analyzing monitoring data generated at a tunnel site; simulating collapse occurring at a shallow buried section of a tunnel; determining the degree of influence of each factor on the tunnel and a stratum; and determining quantitative influence of each factor on tunnel deformation. The present disclosure can not only provide an accurate theoretical basis for the construction of the shallow buried section of the small-distance tunnel, but also guarantee safety and cost saving during tunnel construction.

IPC Classes  ?

• E21F 17/18 - Special adaptations of signalling or alarm devices

Abstract

A flexible layer support structure and a retractable device is disclosed. The flexible layer support structure includes a first thin sheet and a second thin sheet arranged in parallel with each other, as well as and a folding spring group sandwiched between the first thin sheet and the second thin sheet and arranged in parallel. The curved elastic pieces in the folding spring group are smoothly overlapped and connected with the thin sheets, so as to enclose a hollow thin-walled elastic structure that can be overlapped and rolled up, can be automatically straightened and has a flat surface. The retractable device includes a winding shaft, a pressure roller, and a flexible layer support structure installed on the winding shaft. The flexible layer support structure of the present disclosure has the advantages in lightweight, high storage ratio, large unfolded area, simple winding, large load bearing capacity, and less damage.

IPC Classes  ?

• B65H 75/44 - Constructional details

Abstract

The present invention relates to the field of new energy buildings. Disclosed is an intelligent new energy rural house temperature regulation and control system integrating tunnel air and solar energy, comprising a house body, a solar chimney system, solar power supply systems and a tunnel air system. The house body comprises walls, and a sunroom is installed on the outer side of one of the walls. The house body is provided with a detection module, and the detection module is connected to a main control module. The solar chimney system comprises a first Venturi tube arranged at the top of the house body, the first Venturi tube is communicated with a solar chimney, and the solar chimney longitudinally extends in one wall. A plurality of solar power supply systems are arranged at the top of the house body. The tunnel air system comprises a water cellar, a pipeline assembly is arranged in the water cellar, one end of the pipeline assembly is connected to an air supply system, and the other end of the pipeline assembly is communicated with the interior of the house body. According to the present invention, by reasonably using various new energy such as tunnel air, solar energy and phase-change materials, intelligent energy regulation of a rural house by new energy is achieved, thereby improving the comfort of the indoor environment of the rural house, and reducing energy consumption of the rural house.

IPC Classes  ?

• F24D 11/00 - Central heating systems using heat accumulated in storage masses
• F24D 19/10 - Arrangement or mounting of control or safety devices
• E04B 1/00 - Constructions in generalStructures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
• E04C 2/284 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups at least one of the materials being insulating

Abstract

The present invention provides a human cytomegalovirus recombinant vector, a preparation method therefor, and use thereof. The recombinant vector comprises one or more of the nucleotide sequence fragments encoded by SEQ ID NO. 1, SEQ ID NO. 2, SEQ ID NO. 3, and SEQ ID NO. 4. The human cytomegalovirus recombinant vector provided by the present invention can express dominant antigen epitopes of the human cytomegalovirus proteins PP65, PP150, IE1, gB, and gH, has good immunogenicity in both mouse models and clinical population samples, and can induce the organism to generate a strong cellular immune response in a short time. After 14 days of single immunization, killing T cells and auxiliary T cells can be significantly activated, and after 60 days of single immunization, memory T cells are effectively activated, which shows that the vaccine can elicit efficient anti-human cytomegalovirus immune responses in the organism. In addition, the vaccine is fast and simple to prepare and thus can be mass-produced in a short time.

IPC Classes  ?

• C12N 15/861 - Adenoviral vectors
• A61K 39/245 - Herpetoviridae, e.g. herpes simplex virus
• A61P 31/22 - Antivirals for DNA viruses for herpes viruses

Abstract

The present invention relates to the technical field of carbon sequestration materials, and provides a titanium sol carbon sequestration aid and a preparation method therefor and a use thereof, and a method for carbon sequestration for a cement-based material. The preparation method for the titanium sol carbon sequestration aid provided by the present invention comprises the following steps: mixing titanium tetraisopropoxide and aqueous ammonia, performing a hydrolysis reaction, and drying a resulting hydrolysis reaction solution to obtain titanium dioxide powder; mixing the titanium dioxide powder, sodium polyacrylate, and a methyldiethanolamine aqueous solution, and performing amination treatment to obtain a solution A; mixing water and ethanol to obtain a solution B; and mixing the solution A, the solution B, and a catalyst, and performing solation to obtain the titanium sol carbon sequestration aid. The titanium sol carbon sequestration aid prepared by the present invention can absorb CO2 to a greater extent and at a higher rate while improving the overall performance and quality of a cement-based material.

IPC Classes  ?

• C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

A method of preparing a FeMnCeOx biomaterial is provided, including the following steps. A Pseudomonas sp. strain KW-2 is obtained. A culture medium with a pH of 6.5-7.8 is prepared, which includes 0.1 g/L K2HPO4, 0.2 g/L MnSO4·7H2O, 0.2 g/L NaNO3, 0.1 g/L CaCl2), 0.1 g/L NH4Cl, 0.1 g/L (NH4)2CO3, 35 g/L NaCl and 150 mg/L ferric ammonium citrate. The culture medium is autoclaved, inoculated with the KW-2 strain, cultured for 1-3 days, added with a cerium nitrate solution, cultured for 3-7 days and centrifuged at 4,000-8,000 rpm for 10-20 min to collect a precipitate. The precipitate is rinsed 5-8 times with deionized water and 0.01 mol/L phosphate buffered saline (PBS) and freeze-dried at −60° C. to obtain the FeMnCeOx biomaterial. A method for treating antibiotic wastewater using the FeMnCeOx biomaterial is also provided.

IPC Classes  ?

• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C12N 1/20 - BacteriaCulture media therefor
• C12P 3/00 - Preparation of elements or inorganic compounds except carbon dioxide
• C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
• B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
• B01J 37/36 - Biochemical methods
• B01J 37/32 - Freeze drying, i.e. lyophilisation

Abstract

Pseudomonas sp. strain KW-2.

IPC Classes  ?

• C12N 1/20 - BacteriaCulture media therefor
• B09C 1/10 - Reclamation of contaminated soil microbiologically or by using enzymes

Abstract

The present invention provides a human cytomegalovirus antigen epitope chimeric peptide and a use thereof. An amino acid sequence of the human cytomegalovirus antigen epitope chimeric peptide is selected from SEQ ID NO.1, SEQ ID NO.2, SEQ ID NO.3 or SEQ ID NO.4. On the basis of optimized and screened HCMV overlapping T cell epitopes, Th cell epitopes and B cell epitopes, the present invention obtains four HCMV dominant antigen epitope chimeric peptides. Vaccines containing said epitope chimeric peptides have good immunogenicity and safety in mouse models, and can induce humoral and cellular immune responses in a short period of time.

IPC Classes  ?

• C07K 19/00 - Hybrid peptides
• C07K 14/045 - Cytomegalovirus
• A61K 39/245 - Herpetoviridae, e.g. herpes simplex virus
• A61P 31/22 - Antivirals for DNA viruses for herpes viruses

Abstract

Disclosed in the present invention is a magnetic field assisted powerful grinding minimal quantity lubricant supply and recovery apparatus, comprising a grinding wheel guard assembly, a controllable magnetic field assembly, a controllable nozzle assembly, and a control monitoring assembly, wherein the grinding wheel guard assembly comprises a grinding wheel guard and a grinding wheel, and an air shield is provided outside the grinding wheel; a magnetic workbench is mounted on the lower side of the grinding wheel guard, and a magnetic clamp is provided on the surface of the magnetic workbench; the controllable magnetic field assembly comprises a permanent magnet and a first guide rail mechanism, the first guide rail mechanism is mounted on the air shield, and the permanent magnet is connected to the first guide rail mechanism; the permanent magnet is connected to a recovery and filtering apparatus; the controllable nozzle assembly is connected to the air shield and located on the side opposite to the controllable magnetic field assembly; the controllable nozzle assembly comprises a nozzle, and the nozzle is connected to a linear motion mechanism; the control monitoring assembly comprises a vision camera provided on the magnetic workbench; and the vision camera is connected to a system control box. The present invention enables a magnetic nanofluid to exert the optimal lubrication and cooling performance thereof in the magnetic field assisted powerful grinding process, and enables magnetic nanoparticles to be further recycled.

IPC Classes  ?

• B24B 55/03 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
• B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents

Abstract

A method and apparatus for transmitting information through a topological quantum error correction system based on multi-space-time transformation including steps of initializing quantum information, detecting an error in quantum information transmission, correcting the error in quantum information transmission, and decoding the information in quantum information transmission. Information safety is improved and only a quantity of devices for generating quantum states needs to be increased. A stabilizer is used to analyze code symmetry, for error detection, measurement, and correction. Any information about an encoded qubit is not revealed during odd/even parity measurement, so that an encoding state of the encoded qubit remains unchanged. A double-layer convolutional neural network model in an adversarial network can find an error correction chain with a best effect.

IPC Classes  ?

• G06N 10/70 - Quantum error correction, detection or prevention, e.g. surface codes or magic state distillation
• G06N 10/20 - Models of quantum computing, e.g. quantum circuits or universal quantum computers

Abstract

442244 and water, reacting the mixture for 20-30 h at a temperature of 150-250°C, loading a manganese element on the surface of the biochar, and repeating loading once, wherein the biochar is a polystyrene carbon sphere. According to the manganese metal-loaded biochar material prepared in the present invention, the surface of the sphere is completely loaded, and after catalytic oxidation, the sphere can be reused by firing at a high temperature, thereby reducing treatment costs. The manganese-loaded biochar material provided by the present invention can effectively degrade target pollutants and organic matters in actual concentrated liquid wastewater by means of catalytic ozonation.

IPC Classes  ?

• B01J 23/34 - Manganese
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
• C02F 101/38 - Organic compounds containing nitrogen
• C02F 101/30 - Organic compounds

Abstract

Disclosed in the present invention are a boxboard prefabricated steel structure building unit with combined bolts and welding, and a construction method. The building unit comprises a plurality of steel plate walls and steel floor slabs, wherein each steel plate wall is formed by connecting a plurality of wall steel plate blocks, and the plurality of steel plate walls are laterally connected to form a wall structure; stiffening ribs are uniformly arranged on inner sides of the wall steel plate blocks and on bottom sides of the steel floor slabs, and are welded to wall steel plates in a discontinuous welding manner; corner connectors are used for bolt connections between the wall steel plate blocks, between the steel plate walls, and between the steel floor slabs and corresponding steel plate walls; the discontinuous welding is used for repair welding between the corner connectors, between the corner connectors and the wall steel plate blocks, between the corner connectors and the steel plate walls, and between the corner connectors and the steel floor slabs; and door and window openings are reserved in the wall steel plate blocks according to design requirements. The present invention enables a connection using combined bolts and welding, which can effectively reduce the effect of residual stresses generated due to welding on the structural performance, thereby providing relatively enhanced safety.

IPC Classes  ?

• E04B 2/00 - Walls, e.g. partitions, for buildingsWall construction with regard to insulationConnections specially adapted to walls
• E04B 1/08 - Structures consisting primarily of load-supporting, block-shaped or slab-shaped elements the elements consisting of metal
• E04C 2/08 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of metal, e.g. sheet metal
• E04B 1/61 - Connections for building structures in general of slab-shaped building elements with each other
• E04B 5/02 - Load-carrying floor structures formed substantially of prefabricated units
• E04C 2/30 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure

Abstract

A vector partitioning-based step voltage safe experience system and the use thereof. The vector partitioning-based step voltage safe experience system comprises: a bearing platform (1), an experience instrument module, a sensor module (5) and a control module (4), the sensor module (5) being arranged on the bearing platform (1); the control module (4) being located inside the bearing platform (1); the experience instrument module and the sensor module (5) being both connected to the control module (4); and the control module (4) calculating a step voltage on the basis of data collected by the sensor module (5), and sending a control signal to the experience instrument module on the basis of the calculated step voltage value. The vector partitioning-based step voltage safe experience system can enable experiencers to truly feel the existence of a step voltage, and can perform systematical step voltage risk avoiding training on experiencers; a VR virtual environment can bring experiencers into the environment; and timely alarm and correction can deepen the learning impression of experiencers, thus improving understandings of experiencers on step voltage risks.

IPC Classes  ?

• G09B 23/18 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for physics for electricity or magnetism
• G09B 9/00 - Simulators for teaching or training purposes

Abstract

Disclosed in the present invention are a waterproof uplift-resistant pile and a construction method, which pile and method relate to the technical field of pile foundation construction. The waterproof uplift-resistant pile comprises a steel bar framework, wherein the top end of the steel bar framework is provided with a plurality of bent steel bars having end portions away from an axis of the steel bar framework, the steel bar framework below the bent steel bars is sleeved with a waterproof layer, a water stopping plate sleeved on the steel bar framework is arranged between the waterproof layer and the bent steel bars, and a concave face facing the waterproof layer is arranged on the water stopping plate to guide water seepage away from the bent steel bars and the steel bar framework; and a foundation base plate which wraps the water stopping plate and the bent steel bars is arranged above the waterproof layer. Targeting the problem of it being difficult for the waterproofness and corrosion resistance of current uplift-resistant piles to satisfy requirements, the water stopping plate and the waterproof layer are arranged on the steel bar framework, and water seepage from below the waterproof layer is guided by utilizing the concave face structure of the water stopping plate, so as to prevent the water seepage from surging up to a bent steel bar position and guide the water seepage to flow to a position away from the steel bar framework, such that the water content at a contact position of the steel bar framework is reduced, and the waterproof performance is improved, thereby enhancing the corrosion resistance.

IPC Classes  ?

• E02D 31/02 - Protective arrangements for foundations or foundation structuresGround foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

Abstract

The present invention relates to a wireless microstrip patch antenna sensor and the application thereof in the field of debonding defect detection. The wireless microstrip patch antenna sensor provided in the present invention includes a debonding detection antenna, an error antenna and a transmitting antenna. A CFRP reinforced layer is used as a grounding plate of the debonding detection antenna, and when debonding occurs, a sudden change in the conductivity of the grounding plate causes a current path of the grounding plate to change, resulting in an antenna sensing signal changing; providing the error antenna can avoid the adverse effect of factors such as temperature and humidity on debonding detection; and wireless detection can be realized by means of the transmitting antenna. A wireless microstrip patch antenna is attached to a surface of a CFRP reinforced layer and thus has little influence on a structure, and has good flexibility, and a flexible and adjustable size, is simple and convenient to test and use, has little error influence, and is not limited by the size of a defect. The sensing of a debonding signal does not depend on deformation, thereby avoiding a detection failure when no deformation occurs, and the large-area nondestructive detection covering the CFRP reinforced layer of the whole structure can be realized.

IPC Classes  ?

• G01N 27/20 - Investigating the presence of flaws
• G01N 3/32 - Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
• H01Q 9/04 - Resonant antennas

Abstract

A bionic desert beetle self-transporting bone microgrinding head and a manufacturing process therefor, which relates to the field of medical instruments. The bionic desert beetle self-transporting bone microgrinding head comprises a hydrophobic substrate or a substrate with a hydrophobic coating. The substrate has a hydrophobic surface, and a plurality of hydrophilic abrasive grains are uniformly distributed on the hydrophobic surface; the manufacturing process for the microgrinding head comprises: selecting diamond abrasive grains, and carrying out oxidation treatment on the diamond abrasive grains; scanning a surface of a substrate by laser to form a hydrophobic substrate; alternatively, obtaining a hydrophobic coating by a chemical modification method; and combining the oxidized diamond abrasive grains with the hydrophobic substrate or the hydrophobic coating by electroplating to obtain the microgrinding head capable of capturing cooling medium droplets. By designing the microgrinding head, the microgrinding head can use the combination of hydrophilicity and hydrophobicity to achieve the function of rapid cooling, etc., and can capture and efficiently transport cooling medium droplets to a grinding arc zone.

IPC Classes  ?

• C25D 15/00 - Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans

Abstract

The present invention relates to the technical field of geotechnical engineering. Provided are a mud rock damage constitutive model-based pile end resistance prediction method and system. The present invention aims to solve the problem of difficult quantitative analysis and calculation of the bearing properties of power driven piles and of the damage characteristics of mud rock around piles in a mud rock foundation in the prior art. The method comprises: establishing a mud rock statistical damage constitutive model based on a damage variable D determined on the basis of stress states being associated with a rock failure criterion; according to a triaxial test result, determining model parameters, and establishing a relationship between a critical damage variable and a confining pressure; and analyzing the damage characteristics of mud rock around power driven piles, thus calculating the pile end resistance. Therefore, the requirement for quantitative analysis of the damage characteristics of pile ends is satisfied.

IPC Classes  ?

• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 119/02 - Reliability analysis or reliability optimisationFailure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
• G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces

Abstract

A method for determining the angle of internal friction of soft rock, comprising: first drilling undisturbed soft rock by means of a small-diameter core barrel, carrying out a triaxial compression test on the undisturbed soft rock on the basis of a high-pressure low-temperature hydrate triaxial test system, collecting an image of a failure surface of the test sample, performing characterization processing on the basis of PicPick digital image processing software so as to acquire a rupture angle, and finally determining the angle of internal friction according to a relational expression between the rupture angle and the angle of internal friction. The method is simple and convenient to operate, and can directly obtain the rupture angle at a higher precision without a large number of tests and without reading test data and carrying out a fitting process.

IPC Classes  ?

• G01N 3/18 - Performing tests at high or low temperatures
• G01N 3/24 - Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
• G01N 3/06 - Special adaptations of indicating or recording means

Abstract

A project disaster warning method and system based on collaborative fusion of multi-physical field monitoring data is provided. The method includes: acquiring and preprocessing multi-sensor real-time monitoring data of potentially dangerous parts of a project structure; normalizing multi-physical field monitoring time sequence data to construct a normalized sample matrix; analyzing sensitivities of various physical field monitoring indicators to a safety state of a project by using a multivariate statistical method; guiding initialization training of a LSTM network according to the sensitivities, and obtaining output results of the LSTM network; obtaining basic probability assignments of various warning levels after fusion according to an improved D-S evidence theory based on Chebyshev distance, with the output results of the LSTM network as evidence inputs; determining disaster danger levels of the potentially dangerous parts of the project structure using a basic probability assignment-based decision method.

IPC Classes  ?

• G06Q 10/0635 - Risk analysis of enterprise or organisation activities
• G06Q 50/26 - Government or public services
• G06F 18/25 - Fusion techniques
• G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
• G06N 3/08 - Learning methods

Abstract

Disclosed in the present invention are an environment-friendly coating for buildings and a preparation method therefor, which belong to the technical field of coatings. The environment-friendly coating for buildings of the present invention comprises the following raw materials: a modified epoxy resin material, a pigment, a filler, gelatin, propylene carbonate, benzyl alcohol, a modified acrylate leveling agent, hydroxypropyl methyl cellulose and water. By mixing the raw materials in proportion, the content of VOCs in the finally prepared environment-friendly coating for buildings can be 15 g/L, the impact resistance thereof can reach 63 cm, the aging resistance thereof can reach 2523 h, and no change occurs after the environment-friendly coating is soaked in a 3% NaCl solution for 7 d, indicating that the environment-friendly coating for buildings has good brine resistance. The environment-friendly coating for buildings has the characteristics of low volatile organic compound content, and good impact resistance, aging resistance and brine resistance, and has wide application prospects.

IPC Classes  ?

• C09D 163/02 - Polyglycidyl ethers of bis-phenols

Abstract

22 heat pipe cooling system and a control method therefor. The system comprises an evaporator (1). The top of the evaporator (1) is connected to the inlet of a compressor (7) through a pipeline. The outlet of the compressor (7) is connected to the inlet of a heat exchanger (3) through a pipeline. The outlet of the heat exchanger (3) is connected to the inlet of a liquid pump (8) through a pipeline. The outlet of the liquid pump (8) is connected to the inlet of an expansion valve (9). The outlet of the expansion valve (9) is connected to the bottom of the evaporator (1). A switching valve (12) is provided on a pipeline at the outlet of the evaporator (1). The inlet of a gas-liquid separator (10b) in connection with the compressor (7) is connected to the first control valve (11a). The inlet of the first control valve (11a) and the outlet of the compressor (7) are respectively connected to two ends of the second control valve (11b) to form a bypass. The inlet of the gas-liquid separator (10a) in connection with the liquid pump (8) is connected to a third control valve (11c). The inlet of the third control valve (11c) and the outlet of the liquid pump (8) are respectively connected to two ends of a fourth control valve (11d) to form a bypass. The inlet and the outlet of the expansion valve (9) are respectively connected to two ends of a fifth control valve (11e) to form a bypass. The system can be switched to different cooling modes according to the temperature difference and the valve action.

IPC Classes  ?

• F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
• F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
• F25B 41/31 - Expansion valves
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Abstract

A thrust bearing testing machine, relating to the technical field of test equipment. A main body structure comprises a rack (1) consisting of an upper table top (101), a lower table top (102), and vertical columns (103) connecting the upper table top (101) and the lower table top (102), an optical system (2) and a rotary system (3) provided on the upper table top (101), a loading system (4) provided on the lower table top (102), and a main shaft system (5) passing through the upper table top (101) to be connected to the rotary system (3) and the loading system (4), such that the thickness of a lubricating oil film can be collected under a high-speed working condition in a state that the movement of a retainer (200) is limited, the friction torque between rolling bodies (100) and a glass disc (301) can be measured in a state that the movement of the retainer (200) is not limited, and a conventional weight loading mode is abandoned; the main shaft system (5) is pressed upwards by means of a jack (401), such that the large-range interference between the rolling bodies (100) and the glass disc (301) is realized, so as to obtain the film thickness and the friction torque under different operating parameters; the present invention is simple in structure, convenient to operate, accurate in measurement data, and high in measurement result repeatability, and facilitates quantitative analysis and research on higher pair contact tribological characteristics.

IPC Classes  ?

• G01M 13/00 - Testing of machine parts
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass

Abstract

222 is improved by means of the carbon fixation characteristic and the porous structure of the composite material, and the accelerated hydration characteristic of the nano titanium dioxide accelerates the surface carbonization effect to form a surface calcium carbonate protection layer, thereby improving the durability.

IPC Classes  ?

• C04B 24/12 - Nitrogen containing compounds

Abstract

Disclosed is an electrified membrane flow-cell reactor system and method for nitrogen wastewater treatment and upcycling towards ammonia nitrogen without external acid/base consumption. This electrified membrane flow-cell reactor includes a cathodic membrane module having a gas-permeable or gas-exchange membrane and a cathodic catalytic layer, an anode, and a semi-permeable membrane between the cathodic and anodic chamber. Three chambers in the flow-cell reactor include (i) a cathode chamber for nitrate reduction and upcycling towards NH3, (ii) a trap chamber for NH3 capture and storage, and (iii) an anode chamber for H+ production and protonation of gaseous NH3 to NH4+. The cathodic membrane and anode are connected to an electric power source to provide a stable cathodic potential and enable electrode reactions. This method will continuously treat nitrate-containing wastewater and achieve simultaneous electrochemical nitrate reduction from the wastewater and ammonia recovery as ammonium salts in the trap chamber.

IPC Classes  ?

• C02F 1/467 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection
• C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
• C05C 3/00 - Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor

Abstract

A tooling and method for flexible through connection of a double-liner water heater. The tooling includes a transition shaft, a tooling connecting plate and a fastening screw. The method includes: allowing a shaft head of the transition shaft to be in fit with an inner surface of an outer flange of a lower liner for welding; allowing an end hole to be in fit with an outer surface of an inner flange of an upper liner for welding; after welding seams are cooled, removing the tooling, and enameling the upper and liners; forming through-flexible connection between the inner and outer flanges; and firmly fitting the upper and lower liners together with two steel strips to ensure that a gap between the upper and lower liners is not greater than 7 mm.

IPC Classes  ?

• F24H 9/14 - Arrangements for connecting different sections, e.g. in water heaters
• F24H 1/18 - Water-storage heaters
• F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details