A multi-policy improved mayfly algorithm based on a memory mechanism, which algorithm belongs to the field of swarm intelligence algorithms. The technical solution involves: determining basic parameters of an unmanned aerial vehicle task allocation problem and influence parameter values of a mayfly algorithm; using chaotic initialization to randomly generate mayfly positions, obtaining, by means of decoding, a task allocation scheme corresponding to each mayfly position, and obtaining, according to the scheme, a corresponding fitness value; constructing a memory population on the basis of a memory mechanism, calculating the probability of each mayfly joining a positive memory population, generating the positive memory population, and generating a negative memory population by means of the positive memory population; and fusing an ε-greedy policy into a mayfly position update formula, and updating the mayfly positions. Therefore, the early-stage global search capability is improved; a greedy policy is introduced, such that the early-stage global search capability and the later-stage local search capability are adaptively enhanced; and in the present invention, a memory mechanism is added, such that the synergistic effect between populations is increased, thereby increasing the convergence speed and avoiding unnecessary searches.
G06N 3/006 - Artificial life, i.e. computing arrangements simulating life based on simulated virtual individual or collective life forms, e.g. social simulations or particle swarm optimisation [PSO]
2.
Experimental apparatus and method for planar interfacial shear of hydrate-bearing sediment
An experimental apparatus for planar interfacial shear of a hydrate-bearing sediment includes a planar interfacial shear box, a torsional and axial loading device, a nitrogen gas source, a methane gas source, a pressure-volume controller, a water bath device, a back pressure valve, a gas-water separator, a gas flowmeter, and a data acquisition system. The planar interfacial shear box includes an upper pressing plate, an upper adapter, an upper thermal insulation plate, a ram adapter, a lower ram, an upper base, a lower base, a lower thermal insulation plate, a lower adapter, and a lower pressing plate that are coaxially connected in sequence from top to bottom. The experimental apparatus offers a simple specimen preparation method, enabling in-situ formation of a hydrate-bearing sediment in the shear box. The experimental apparatus ensures uniform stress distribution during shearing, and can acquire the interfacial shear mechanical characteristic between the hydrate-bearing sediment and a structure.
An adaptive geometric modeling method for assembled thin-walled component structures oriented to integration of modeling, analysis and optimization, includes firstly, using a multi-level NURBS-based free-form deformation (MNFFD) technique to realize accurate geometric modeling of an assembled thin-walled component structure; secondly, establishing a modeling-analysis unified model suitable for isogeometric analysis of the assembled thin-walled component structure based on an MNFFD method; finally, establishing a modeling-analysis-design unified model suitable for collaborative design of a shape and a stiffened layout of the assembled thin-walled component structure based on the MNFFD method. The present invention fundamentally solves the modeling robustness problem of gaps and overlaps between thin-walled components due to the lack of accurate topological consistency in traditional modeling methods, provides a new tool for optimization design of engineering thin-walled structures. MNFFD is used, so that the geometric dimension reduction transformation from 3D design domain to 2D design domain can be realized.
A federated unlearning method based on malicious terminal intervention training and belongs to the technical field of privacy computing and federated learning, which eliminates the influence of the malicious client on the global model through federated unlearning and subtracts the parameter updates of the malicious client from the parameters of the final global model generated by federated learning to save the retraining time by continuing training with a theoretically unusable low-quality model. A comparison mechanism for judging the effect of the previous round of unlearning model and the effect of the current round of unlearning model to analyze the unlearning effects is also provided. The final unlearning model is trained with a small dataset and the deviations produced by the training process on the model are recovered, which effectively improves the accuracy of the final unlearning model.
The present application belongs to the technical field of rendering and discloses a tactile data processing method and apparatus and a related device. The method in the embodiments of the present application comprises: acquiring multiple tactile signals corresponding to the same execution device group or the same action position group; and preprocessing the multiple tactile signals to obtain processed tactile signals, wherein the preprocessing comprises at least one of the following: tactile signal discarding processing, and tactile signal processing priority lowering processing.
The present invention provides a real-time flow cytometric analyzer of single-cell dynamics combining droplet microfluidics and multimodal optical microscopy, and belongs to the field of cell biology experimental devices. The analyzer comprises a cell/signal loading & acquisition and control system, a high-throughput microfluidic single-cell manipulation chip, a multi-channel optical microscopy and multimodal signal acquisition and control system, and a data processing and analysis system. Based on droplet-based microfluidic chip technology, multimodal optical microscopy technology, single-cell dynamics theoretical modeling and analysis methods, and artificial intelligence technology, the integrated detection of spatiotemporal information of single-cell dynamics can be realized. The analyzer provides a new rapid and accurate single-cell dynamics analysis platform for exploring the occurrence and development mechanism of major human diseases, disease diagnosis, cell sorting and drug screening, etc.
An ultrasonic inspection robot for a threaded connection structure of a rotor internal cavity includes a main rack, a clamping module, a lifting module, a rotating module, a telescopic module and a probe buffer module. The present invention can be operated in a narrow, long and strongly restricted space, realizes the inspection of the nut that is inaccessible to the naked eye by carrying testing probes realizes the automated measurement function of placement and pressing of the carried probes, the switching between different test points, and all the points to be measured in an axial direction, and the deformation action of the device, realizes the extension and reduction of the axial and radial dimensions of the device, and completes all functions of placing and taking out the whole device. Moreover, the above functions can be realized only through one device.
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
A preparation method for methylphenol and homologue. Under the conditions of reaction temperature of 150-350° C. and reaction pressure of 1-50 atm, a mixed material of methanol, ethanol and acetone is fed into a reactor containing a catalyst by a carrier gas to produce methylphenol through coupling-aromatization reaction. The method provides a reaction path for directly producing methylphenol and homologue from low carbon micromolecular alcohol and ketone through coupling-aromatization reaction, the maximum selectivity of total cresol is 34.0%, and the selectivity of 2,3,6-trimethylphenol is up to 7.1%. The by-product hydrogen of the reaction path can be used as a chemical material. Other by-products such as high carbon alcohol and ketone whose melting and boiling points are quite different from those of methylphenol and which are easy to be separated by rectification can be used as fuel additives to partially replace petroleum-based products.
C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals
B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
The invention relates to the fields of electricity market and hydropower dispatching and operation, focusing on a coordination method of electricity supply and recipient market day-ahead spot clearing considering hydropower absorption. The clearing model of minimizing the power purchasing cost is constructed considering the DC transmission plan to determine the boundary conditions of the giant hydropower station generation capacity in the supply market, start-off, ramping, upstream and downstream influence power, and coupling the non-linear characteristics of hydropower and the spillage control requirements, which can optimize the day-ahead spot power of the whole network in the supply market. The update strategy for the DC scheme is proposed, which can dynamically adjust the boundaries of outgoing power and update to the recipient market clearing model based on the spillage of the power station and the control of the grid cross section, and iteratively clear until convergence.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
10.
QUANTITATIVE DETECTION METHOD FOR MICRO DEFECTS USING LOW-FREQUENCY ULTRASONIC MULTI-RESOLUTION SCANNING IMAGING
A quantitative detection method for micro defects using low-frequency ultrasonic multi-resolution scanning imaging, comprising: decomposing a collected encoded ultrasonic A-scan signal by means of split-spectrum analysis into sub-signals with different center frequencies fi, performing amplitude imaging on the sub-signals of the same center frequency fi, identifying defect sizes di measured at half-maximum amplitude in images, and performing linear fitting on the defect sizes di and the center frequencies fi on the basis of a directivity function of an acoustic field, wherein the defect size di corresponding to a fit line slope k=-0.01 is a quantitative defect size. The detection effect no less than three times that of high-frequency ultrasound can be realized by using low-frequency ultrasound.
DALIAN UNIVERSITY OF TECHNOLOGY NINGBO RESEARCH INSTITUTE (China)
Inventor
Guo, Jiang
Kang, Renke
Zhang, Pengfei
Li, Linguang
Yang, Zhe
Guo, Dongming
Abstract
The present invention relates to a conformal flexible polishing method for a micro lens array mold, which realizes conformal flexible polishing. Solution 1: a magnet is installed below a workpiece so that the prepared magnetic slurry is fitted with the surface of the workpiece under the action of magnetic field force to produce a contact pressure; a magnetic polishing tool is installed above the workpiece, and the tool is magnetized; the polishing tool rotates, and the magnetic slurry on the tip end of the tool forms a spherical polishing head. Solution 2: a shear thickening slurry is used, a ball end tool is installed above the workpiece, and the shear thickening slurry is driven through the high-speed rotation of the ball end tool to rotate and produce a relative shear motion so as to carry out polishing under the action of the shear thickening effect.
B24B 1/00 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes
B24B 29/02 - Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
B24B 49/04 - 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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
12.
ACTIVE AERO-ENGINE SURGE CONTROL SYSTEM BASED ON SECOND-ORDER SLIDING MODE CONTROL
An active aero-engine surge control system based on second-order sliding mode control. The system involves the establishment of a compressor model which has an actuator, and the design of a second-order sliding mode controller. On the basis of the principle of high-order sliding mode control, the chattering problem during sliding mode control is inhibited while maintaining the advantages of the good robustness of a conventional sliding mode, such that the limitation of a relative order is eliminated, the control precision is improved, and quick active surge control with a strong anti-interference capability and a good robustness is realized. In addition to second-order sliding mode control, a linear item is also provided in a designed quick superhelix second-order sliding mode controller, such that not only is the chattering problem during sliding mode control effectively suppressed, but the convergence speed of the control system is also increased and the robustness of the system against unmatched uncertainty is enhanced. The designed controller can perform effective active anti-surge control and surge removal control, such that a compressor can stably operate in a region beyond a surge boundary, thereby expanding the operation range for the compressor, without the need to know the specified model of the compressor. The designed controller has a good robustness against uncertain factors such as unmodeled dynamics and system disturbances.
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
An obstacle-surmounting walking device is provided, and belongs to the technical field of walking devices. The obstacle-surmounting walking device includes a contact wheel, a driving load-bearing wheel, a free climbing wheel, a climbing drive disc, a climbing drive disc driving disengagement leaf, and a driving device. Contact wheel climbing teeth are arranged on contact wheel rim on the contact wheel, and contact wheel spokes of the contact wheel deviates from a center of the contact wheel rim. The driving load-bearing wheel is fixed on a driving wheel axle, and a bottom end of the driving load-bearing wheel is in contact with an inner surface of the contact wheel rim. A bottom end of the free climbing wheel is engaged with the contact wheel climbing teeth, the free climbing wheel can freely rotate around the driving wheel axle.
B62D 57/024 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
B62D 57/028 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members having wheels and mechanical legs
14.
SILOXANE GROUP-CONTAINING REACTIVE DYE AND PREPARATION METHOD THEREFOR
The present invention relates to the field of reactive dyes, and relates to a siloxane group-containing reactive dye and a preparation method therefor. The siloxane group-containing reactive dye is a compound having the following general structural formula I. The dye provided by the present invention has a relatively high fixation rate and good fastness properties during dyeing, greatly improving the utilization rate of the dye, reducing the generation of dye wastewater, and well compensating for the problem present in conventional reactive dyes. Such a siloxane group-containing reactive dye has a simple structure and is relatively easy to synthesize, thereby facilitating the application of the dye in industrial production.
The present invention discloses a multi-task machining process on-line monitoring method and system based on cloud-edge collaboration, comprising multi-source sensing terminals, edge computing platforms and a cloud server. Each multi-source sensing terminal uses sensing equipment to obtain multi-source heterogeneous signals such as spindle vibration signals and acoustic emission signals generated in a machining process and transmit the signals to a controller of each edge computing platform; the edge computing platform is used for periodically collecting and processing the signals, synchronously monitoring cutting vibration, tool wear, tool breakage and machining surface quality in combination with intelligent prediction models, and uploading monitoring data to the cloud server; the cloud server is used for storing the monitoring data of each edge computing platform into the cloud database, and updating the intelligent prediction models regularly with global data to improve the generalization ability of the models.
A preparation method for and the use of an aluminum hydroxide oxide nano-adjuvant based on calcium and silicon doping. The particle morphology of the AlOOH adjuvant is a 50-800 nm nano-particle, wherein silicon or calcium is doped in AlOOH crystal lattices, and the molar ratio of calcium or silicon to aluminum is 0.01-100:1. The preparation method comprises: synthesizing AlOOH by using an Al source, doping Ca or Si in a reaction solution by using a calcium source or a silicon source, precipitating Al(OH)3 and a dopant by adding an alkaline solution, and preparing a Ca- or Si-doped AlOOH adjuvant by means of a hydrothermal synthesis method. In a hepatitis B surface antigen and varicella-zoster virus glycoprotein E antigen model, the calcium- or silicon-doped AlOOH nano-adjuvant can simultaneously induce efficient humoral immunity and cellular immunity by means of in-vivo experiment verification of mice.
MULTI-CHANNEL MICRO-FLUID EMULSIFICATION MEMBRANE FOR LARGE-SCALE MANUFACTURING OF MONODISPERSE EMULSION DROPLETS, AND USE OF MULTI-CHANNEL MICRO-FLUID EMULSIFICATION MEMBRANE
The present invention relates to the technical field of membrane emulsification, and in particular to a multi-channel micro-fluid emulsification membrane for large-scale manufacturing of monodisperse emulsion droplets, and a use of the multi-channel micro-fluid emulsification membrane. The emulsification membrane comprises at least one through hole, wherein the cross section of the through hole is rectangular, the length of the short side of the cross section of the through hole is 0.005-1.5 mm, and a side length ratio of the short side to the long side is 1:2-1:10. According to the emulsification membrane, membrane emulsification technology is combined with micro-fluidic droplet technology for use, and by means of matrix arrangement and free shaping, low-energy-consumption, high-flux and automatic production of various micro-emulsions having unique manufacturing requirements and small- and narrow-particle-size distribution is satisfied; and on the basis of the micro-fluidic droplet technology, the through hole structure of the present invention can realize high-precision emulsification at an emulsion level comparable to that of traditional dilute solution emulsification under an emulsification condition without the help of external force.
The present invention relates to the field of magnetic field measurement, and provides a medium-high-frequency high-field-intensity alternating magnetic field measurement method based on electromagnetic induction. In the present invention, an alternating induced electromotive force generated by the electromagnetic induction effect of a closed metal coil under the action of an alternating magnetic field is used, a designed probe element is applied to convert an alternating magnetic field parameter into a synchronously-varying electrical signal, and the frequency and amplitude of the electrical signal are measured to characterize the frequency and field intensity of an alternating magnetic field to be measured, thereby broadening the measurable frequency and field intensity range of the alternating magnetic field. In addition, the device in the present invention is highly tolerant to measurement environment requirements, compact, convenient to carry, and easy and convenient to operate.
A method for producing fuel oil and liquefied petroleum gas through catalytic conversion of waste plastics, relating to the field of upgrading and recycling of waste plastics. The preparation process of a catalyst involves a short procedure and a simple process, and is suitable for industrial production. The catalyst has characteristics of uniform active site distribution, and good activity and stability, and can efficiently catalyze hydrogenolysis of the waste plastics to produce liquid fuel at a low temperature under low pressure without adding a solvent, wherein the liquid fuel has a liquid mass yield of 83.82%, has a small molecular weight, and is mainly composed of a gasoline component; and a gas product almost contains no methane or ethane, and can be used as liquefied petroleum gas. The method implements high value-added conversion of the waste plastics, and provides a solution for upgrading and recycling of the waste plastics.
C10G 47/10 - Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, to obtain lower boiling fractions characterised by the catalyst used with catalysts deposited on a carrier
C10G 1/10 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
20.
METHOD FOR IDENTIFYING OPTIMAL INFLUENCE CUSTOMER GROUP OF MARKETING NETWORK BASED ON HYPERGRAPH THRESHOLD MODEL
The present invention discloses a method for identifying an optimal influence customer group in a marketing network based on a hypergraph threshold model. The method specifically comprises: step 1: establishing a hypergraph threshold model based on sales data first. Step 2: using the hypergraph threshold model to simulate spread of customer reputation in a marketing network, and setting a hyperedge threshold according to a specific scenario. Step 3: using an HCI-TM algorithm to screen out a most recommendable customer group for popularization, and using a hypergraph threshold rule to simulate spread of information among customers. The present invention proposes a multi-node collective influence measurement method for the hypergraph threshold model, designs the HCI-TM algorithm to efficiently select a maximum influence set, and applies the algorithm in the marketing network at the same time.
The polyether amine-based flexible phase change materials with high enthalpy value, preparation method and application thereof, which belongs to the technical field of the polymer phase change materials for energy storage. Phase change materials for heat storage comprise flexible polyether amine-based high molecule network and organic solid-liquid phase change components which is in-situ loaded in the high molecule network. Among them, the flexible polyether amine-based high molecule network has good compatibility with organic phase change components, and the organic phase change molecules are wrapped around polyether amine-based high molecule chains to form crystalline domain with overall flexibility, realizing the organic combination of flexibility and high heat storage capacity. Design and development of the flexible phase change materials with high enthalpy value possess important application value in the flexible wearables and thermal management of electronic components.
A 3D variable damping vibration isolator based on rubber friction and extrusion mechanism is composed of a base, an upper plate, a vibration isolation spring, “ ” shaped bolts, lock nuts, damped rubber blocks and a shell. The damped rubber blocks are vulcanized and bonded to the external vertical surfaces of vertical steel angles uniformly distributed on the base and are opposite to each other in pairs; the upper end of each “” shaped bolt is fixed to the upper plate by upper and lower (two) lock nuts, and cross bars at the lower end are squeezed by the damped rubber blocks on both sides; contact surfaces of the damped rubber blocks and the “” shaped bolts are flat-a design of variable cross-section. The vibration isolation spring is sheathed between the base and a lug boss in the center of the upper plate.
F16F 7/08 - Vibration-dampersShock-absorbers with friction surfaces rectilinearly movable along each other
23.
ELECTROCHEMICALLY ENHANCED ANAEROBIC-AMMONIUM-OXIDATION MEMBRANE BIOREACTOR BASED ON CONDUCTIVE SEPARATION MEMBRANE, AND BIOLOGICAL NITROGEN-REMOVAL METHOD USING SAME
Disclosed in the present invention are an electrochemically enhanced anaerobic-ammonium-oxidation membrane bioreactor based on a conductive separation membrane, and a biological nitrogen-removal method using same. The membrane bioreactor comprises a reactor shell, an anode, a cathode, a direct-current power supply, a water intake line and a water output line, wherein anaerobic-ammonium-oxidation bacteria are loaded into the reactor shell, and a water inlet is provided at the bottom of the reactor shell and is connected to the water intake line; the anode and the cathode are located in the reactor shell; a positive electrode of the direct-current power supply is connected to the anode, and a negative electrode of the direct-current power supply is connected to the cathode; and the cathode is a conductive membrane assembly, and a water outlet is provided at the top of the conductive membrane assembly and is connected to the water output line. In the present invention, a membrane biological treatment is coupled with an electrochemical technique, such that anaerobic-ammonium-oxidation bacteria can be effectively retained and enriched, the nitrogen-removal effect of the anaerobic-ammonium-oxidation bacteria is enhanced, and membrane fouling is alleviated by means of electrostatic repulsion. The device has a good nitrogen-removal performance, effectively alleviates membrane fouling, is easily operated and has broad application prospects.
The present invention belongs to the field of human-computer interaction, and discloses a distributed wireless high-density surface electromyography synchronous acquisition system, comprising high-density electromyography front-end acquisition control units, a base station unit and a host computer, wherein data is transmitted between the high-density electromyography front-end acquisition control units and the base station unit through a wireless system; each high-density electromyography front-end acquisition control unit comprises a high-density electromyography acquisition array, a reference electrode and a signal transmission module; the base station unit comprises a synchronization control module, a wireless routing module and a charging and discharging module; the host computer is a client computer program, which is loaded with a signal preprocessing and display module and a high-density electromyography decoding algorithm module; and information received from the base station unit is acquired and analyzed and results are displayed by a client.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
A61B 5/257 - Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
A61B 5/263 - Bioelectric electrodes therefor characterised by the electrode materials
A61B 5/296 - Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
A61B 5/313 - Input circuits therefor specially adapted for particular uses for electromyography [EMG]
G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
25.
BIOLOGICAL CARRIER FOR ENHANCING ENRICHMENT AND ACTIVITY OF ANAEROBIC AMMONIUM OXIDATION BACTERIA, PREPARATION METHOD THEREFOR, AND USE THEREOF
The present invention belongs to the technical field of sewage treatment. Disclosed are a biological carrier for enhancing enrichment and activity of anaerobic ammonium oxidation bacteria, a preparation method therefor, and a use thereof. In the present invention, a functional biological carrier suitable for anaerobic ammonium oxidation is prepared by blending polyethylene or polypropylene as a basic raw material, a positively charged polymer such as a polyquaternary ammonium salt or a cationic polyacrylamide as a modifying material, and zero-valent iron and a carbon-based material containing C=O and -COOH functional groups as functional materials. The biological carrier of the present invention can enhance the enrichment and metabolic activity of the anaerobic ammonium oxidation bacteria, thereby improving the nitrogen removal efficiency.
The present invention belongs to the technical field of sewage treatment. Disclosed is a biological adsorption-partial nitrification-anaerobic ammonium oxidation process based on a functional carrier. The process of the present invention is mainly composed of a biological adsorption section, a partial nitrification section, and an anaerobic ammonium oxidation section, wherein in the biological adsorption section, microorganisms in a logarithmic growth phase are screened and enriched by means of a short hydraulic retention time, and organic matters can be efficiently adsorbed; in the partial nitrification section, a nitrification functional carrier is added to enhance the adsorption of ammonia nitrogen, so as to enrich ammonium oxidation bacteria, and a relatively low level of dissolved oxygen is controlled, so that stable partial nitrification is achieved; and in the anaerobic ammonium oxidation section, an anaerobic ammonium oxidation functional carrier is added, so that the biomass and activity of anaerobic ammonium oxidation bacteria are improved by means of enrichment, and the autotrophic nitrogen removal efficiency is improved. The present invention does not need an additional carbon source, has a small aeration amount and low operating costs, and has great prospects in engineering applications.
Provided in the present invention is a grounded visual question-answering method based on dynamic dual-level visual information fusion. A dual-level multi-scale network is used for constructing a grounded visual question-answering system, that is, performing division into a language-guided pixel-level feature and a language-guided region-level feature, the two scale branches being combined so as to perform final text answer and grounded answer prediction. In addition, a question-guided dynamic region-level feature positioning network is provided, so that the visual information is positioned by means of question guidance and masks of different dimensions are adaptively allocated to grounded answers, thereby improving the accuracy of positioning and segmentation of small targets. Furthermore, a cross-modal aggregation module is further designed to fuse the features of the two levels, so that feature fusion of the pixel-level and region-level features can be enhanced, thereby improving the segmentation effect for the edge of grounded answer masks. In the present invention, by using the grounded visual question-answering system established on the basis of a language-guided adaptative dual-level feature fusion network, answer grounding masks can be generated while questions are answered, thereby effectively improving the accuracy of the whole model.
G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
The present invention relates to the technical field of machine tool grinding and polishing. Disclosed is a complex curved surface force-controlled grinding and polishing device for a multi-axis numerical control machine tool. The device consists of five parts, i.e., a mounting component, a rotational motion transmission component, an active force control component, a force sensor, and a metal housing. The present invention is mounted at the front end of a spindle of a numerical control machine tool, and while the rotational motion transmission component transmits the torque and rotational motion of the spindle of the machine tool to a grinding and polishing tool, the active force control component comprising a voice coil motor and the force sensor accurately and actively controls a grinding and polishing contact force during grinding and polishing machining, thereby ensuring the consistency and uniformity of the surface quality in the multi-axis numerical control grinding and polishing process for complex curved surfaces.
B24B 49/16 - 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 load
B24B 49/00 - 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
29.
SYSTEM FOR ON-LINE CONVERSION OF SODIUM SOURCE INTO HEAT ENERGY AND HYDROGEN
Disclosed in the present invention is a system for the on-line conversion of a sodium source into heat energy and hydrogen. A reactor is filled with hydrogen prior to a reaction, and liquid sodium and water vapor are injected into the reactor; when the water vapor comes into contact with the liquid sodium, a combustion reaction occurs to generate hydrogen and sodium hydroxide, and the water vapor which does not participate in the reaction absorbs heat to form high-temperature water vapor having a higher temperature; the temperature of a gas mixture of the hydrogen and the high-temperature water vapor is lower than 70°C after passing through a heat exchanger, the high-temperature water vapor is condensed into water and flows back to the bottom of the reactor, and the hydrogen is discharged from a hydrogen collecting pipe via a pressure relief valve; and a drain valve is controlled during the combustion reaction, and the height of a sodium hydroxide solution is made to be lower than the outlet end of a water vapor injection pipe. Potential safety hazards such as explosions caused by the reaction of sodium with water in the prior art are avoided, a heat source having a relatively high temperature and hydrogen can be formed, and the operation cost is reduced.
C01B 3/08 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
B01J 19/24 - Stationary reactors without moving elements inside
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
30.
Multi-sensor-based hot forming production system for aluminum alloy sheet metal part and control method thereof
The present disclosure discloses a multi-sensor-based hot forming production system for an aluminum alloy sheet metal part and a control method thereof, and belongs to the field of aluminum alloy sheet metal forming manufacturing technology. A plurality of sensors are disposed in the hot forming production system, and closed-loop control of a whole process and adaptive production can be realized based on deformation properties, a microstructure evolution law, and a mechanical property change law of the aluminum alloy sheet metal part. The hot forming production system comprises a control system based on a multi-physical quantity model, an environmental heating furnace, an automated transfer and positioning device, a hot stamping and forming device, and an in-die aging device. By using the hot forming production system and the control method thereof, the product quality and the stability of the forming process can be effectively improved, and the adaptability of the process to form different types of alloys can be enhanced.
A cold storage system and method are provided. The cold storage system includes a chiller, a hydrate-based cold storage tank, a gas disturbance generator, a concentration detector, a heat exchanger, a direct-current power supply and circuit controller, and a system monitor. Chiller provides a secondary refrigerant at a low temperature. The secondary refrigerant flows through a coil in the hydrate-based cold storage tank for a heat exchange. The gas disturbance generator induces hydrate nucleation. The concentration detector monitors a concentration of a hydrate solution in real time. The heat exchanger is equipped with a finned tube heat exchanger with a fan, to improve the cold supply efficiency of the cold storage system. The system monitor monitors a state change of the system in real time through a set of temperature-pressure sensor modules. Several cold energy supply modes can be realized in the present disclosure by adjusting opening/dosing of valves.
F25D 16/00 - Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
F28D 20/02 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or using latent heat
An engineered cell and a use, belonging to the technical field of fine chemical engineering. A photosensitive compound is loaded into a phagocyte, a bacterium in a host is captured by utilizing the innate immunity of the cell, and thus by means of light treatment, the bacterium is killed. Compared with the limitation that a conventional photosensitizer cannot target a living bacterium, the cell formulation can precisely capture a bacterium by means of a macrophage and precisely "deliver" a photosensitive dye to the surface of the bacterium. Therefore, the light treatment can directly act on the surface of the bacterium without damaging an autologous tissue in a patient and has high sterilization efficiency and good treatment safety.
A61K 35/15 - Cells of the myeloid line, e.g. granulocytes, basophils, eosinophils, neutrophils, leucocytes, monocytes, macrophages or mast cellsMyeloid precursor cellsAntigen-presenting cells, e.g. dendritic cells
The present invention relates to the field of materials science, the field of nanomaterials, and the field of biomedical engineering, and in particular to an inorganic non-metallic nanoparticle-assembled hydrogel material and an application thereof inl additive manufacturing technology. The hydrogel material is assembled from inorganic non-metallic particles, so as to form a hydrogel network; the size of the inorganic non-metallic particles ranges from 10 nm to 20 um; the inorganic non-metallic particles account for 2-80 wt % of the total mass of hydrogel; and the hydrogel network has microscopic pores having a pore size ranging from 0.1 um to 30 um. The inorganic non-metallic particles are assembled into a hydrogel material by an electrostatic assembly method or a hydrophobic action assembly method or a magnetic action assembly method. The hydrogel material is additively manufactured to obtain a gel scaffold which is used as a bone repair scaffold or a cartilage repair scaffold. The hydrogel material of the present invention is directly applied to inorganic non-metallic additive manufacturing technology, without using an additive or a cross-linking agent.
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided forMaking microcapsules or microballoons
A multi-mode surface-wave free-field inversion method based on dispersion properties of layered media addresses the inaccuracy in existing methods that ignore higher modes. A novel approach for characterizing the participation quantity of each mode is proposed based on an energy flux density, which is applied to calculate a modal participation factor through dispersion curves and the frequency-domain dynamic stiffness matrix. Next, the ground surface-wave components with dispersion properties are transferred from the time domain to the frequency domain and decomposed into harmonic components composed of individual frequencies by the Fast Fourier Transform technology. These harmonic components continue to be decoupled as multiple modes by the modal participation factors, with each single-mode component being inverted to construct single-mode surface-wave free fields. Finally, all single-mode surface-wave free fields are superimposed following the mode superposition principle to form the multi-mode surface-wave free fields.
A ground visual question-answering method based on dynamic dual-level visual information fusion includes using a dual-level multiscale network, which is divided into language-guided pixel-level features and region-level features. These two scale branches are combined to predict the final textual answer and ground answer. Furthermore, a question-guided dynamic region-level feature localization network is proposed to locate visual information guided by the question and adaptively assign masks of different sizes to ground answers, thereby enhancing the accuracy of locating and segmenting small targets. Additionally, a cross-modal aggregation module is designed to fuse features from both levels, enhancing the fusion of pixel-level and region-level features to improve the segmentation effect of ground answer masks' edges. The ground visual question-answering system built by the language-guided adaptive dual-level feature fusion network in this invention can effectively improve the accuracy of the entire model while answering questions and generating answer ground masks simultaneously.
G09B 5/02 - Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
G06V 10/86 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using syntactic or structural representations of the image or video pattern, e.g. symbolic string recognitionArrangements for image or video recognition or understanding using pattern recognition or machine learning using graph matching
36.
ANODE AND CATHODE SYNERGISTIC ELECTROCATALYTIC SYSTEM FOR WASTEWATER TREATMENT AND APPLICATION
In an anode and cathode synergistic electrocatalytic system for wastewater treatment and an application, an electrode having a “dual function” is used as a cathode. The cathode and an anode are sequentially arranged in a crisscrossed and parallel mode and fixed into an electrode group. The electrode group is paced in a reaction tank which has an aeration device at the bottom thereof, separately connecting the cathode and the anode of the electrode group to a power supply. Electrocatalytic degradation is performed on wastewater. In the electrocatalytic degradation process, a synergistic electrocatalytic degradation effect of the anode and the cathode is achieved by the mutual coordination of heterogeneous electro-fenton of the cathode and oxidation of the anode. The cathode ad anode synergistic electrocatalytic process has a good wastewater treatment effect, high current efficiency, low energy consumption, and low operation and maintenance costs.
REBOUND COMPOSITE ELECTROMAGNETIC ENERGY DISSIPATION DEVICE FOR REDUCING SLOSHING WITH LIQUID-FILLED BALL FOR LARGE LIQUEFIED NATURAL GAS (LNG) STORAGE TANK
The present invention relates to a rebound composite electromagnetic energy dissipation device for reducing sloshing with a liquid-filled ball for a large liquefied natural gas (LNG) storage tank. When the liquid surface sloshes around, the gas spring is pulled by the steel strand to produce vertical displacement and provide a restoring force, and the vertical displacement of the gas spring drives the fan blades on the sleeves of the ball screws at the bottom to rotate in the damping fluid, consuming energy. The present invention uses hydraulic transmission instead of mechanical transmission of traditional piston motion, and the horizontal pistons produce horizontal displacement in the case of pressure unbalance, thus increasing the flexibility of horizontal piston motion; magnets are arranged in the horizontal slideways and the horizontal pistons to intensify the motion of the horizontal pistons and the relative motion between the horizontal pistons and the interior.
DALIAN UNIVERSITY OF TECHNOLOGY NINGBO RESEARCH INSTITUTE (China)
Inventor
Guo, Jiang
Kang, Renke
Qin, Pu
Guo, Dongming
Abstract
A multi-fields assisted abrasive scouring polishing method and device. The device includes an abrasive pool, a heating device, an ultrasonic device, a peristaltic pump and a clamping table. In use, first, magnetic poles are installed on a longitudinal rod of a workbench, and the internal channel of the workpiece is communicated with the pump inlet hose. Second, polishing slurry and abrasive particles are added into the abrasive pool, the heating end of the heating device and the vibrating end of the ultrasonic device are immersed into the polishing slurry, and the heating device and the ultrasonic device are started. Finally, a magnetic field device is energized and magnetized, and the peristaltic pump is started to polish the internal channel. The device solves the problems of poor surface quality and low polishing efficiency of a complex long and thin internal channel in a machine part containing an internal channel.
B24B 1/00 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes
B24B 1/04 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
B24B 31/00 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor
B24B 31/12 - AccessoriesProtective equipment or safety devicesInstallations for exhaustion of dust or for sound absorption specially adapted for machines covered by group
39.
AN EXPERIMENTAL DEVICE FOR LONG-TERM LOADING AND SYNCHRONIZED MEASUREMENT OF THE CONCRETE-ENCASED CONCRETE-FILLED STEEL TUBE STRUCTURE
The present invention provides an experimental device for the long-term loading and simultaneous measurement of a concrete-encased concrete-filled steel tube structure. The device comprises a loading component, a load measurement component, a deformation measurement component, and the concrete-encased concrete-filled steel tube structure. The loading component mainly consists of loading plates, loading rods, nuts, and pre-tightened disc springs. The load measurement component comprises force sensors. The deformation measurement component mainly consists of measurement devices. The concrete-encased concrete-filled steel tube structure serve as the load-bearing structure. By inventing the experimental device for the long-term loading and simultaneous measurement of the concrete-encased concrete-filled steel tube structure, it achieves phased loading and simultaneous measurement of internal forces and deformations of the embedded concrete filled steel tube and the external reinforced concrete. It provides reliable experimental results for further studying the redistribution of internal forces and development of deformations of such structures under long-term loading.
The invention relates to biomarker Allergin-1 specifically expressed by leukemia stem cells and use thereof. Specifically, the invention relates to methods for identification of LSCs, diagnosis, disease course monitoring and prognosis of leukemia (especially AML), or determination of risk of developing leukemia (especially AML), or determination of the presence of severe leukemia (especially AML) by detecting expression or activity of the biomarker Allergin-1 in a subject or a sample from the subject, in which Allergin-1 is specifically and abnormally highly expressed in LSCs. The invention also provides methods for treating leukemia (especially AML) in a subject by inhibiting/antagonizing expression/activity of Allergin-1.
A61K 39/00 - Medicinal preparations containing antigens or antibodies
A61P 35/02 - Antineoplastic agents specific for leukemia
C07K 16/32 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against translation products from oncogenes
G01N 33/50 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing
Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China (China)
DALIAN UNIVERSITY OF TECHNOLOGY (China)
Inventor
Cao, Bin
Jiang, Zeyu
Liu, Xin
Cheng, Wen
Li, Yun
Shen, Rensheng
Chang, Yuchun
Abstract
The present invention provides a federated large model adaptive learning system. Based on the combination of multiobjective optimization and incremental learning, multiple optimization indexes are constructed, and adaptive mini model incremental learning is designed. A gradient scaling method of mini models is proposed for data privacy protection under federated learning, to make full use of gradient information. A correlation between the generalization ability and sampling data is revealed to propose a generalization ability evaluation function. With respect to the real problems of performance degradation and fault faced by industrial equipment during operation, multiple optimization objectives are designed in combination with the generalization ability evaluation function, and the models are updated and repaired adaptively through multiobjective evolutionary learning, to improve the usability of large models in real industrial scenarios. Finally, the adaptive accurate update of the large models and mini models is realized to improve the generalization ability of the models.
An integrated vessel with wave compensation capability for transportation of completed offshore wind turbines includes a wind turbine conveyor system, a dynamic positioning propeller system, and a six-degree-of-freedom parallel manipulator system, as well as a foundation monopile of a fixed wind turbine arranged in the hull; the completed offshore wind turbines are fixed on the wind turbine conveyor system by multiple wind turbine stabilizing blocks, and a clamping system is equipped in the six-degree-of-freedom parallel manipulator system. The invention uses the conveyor system to transfer and the clamping system to clamp the completed wind turbine, as well as the six-degree-of-freedom parallel manipulator system to transport, which reduces the difficulty of the operation, improves the automation of the installation process, and reduces the labor cost of the wind turbine installation; the invention reduces the difficulty of the installation process, and improves the efficiency of the wind turbine installation.
F03D 13/40 - Arrangements or methods specially adapted for transporting wind motor components
B63B 77/10 - Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms specially adapted for electric power plants, e.g. wind turbines or tidal turbine generators
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
F03D 13/25 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors specially adapted for offshore installation
43.
LARGE-SCALE FABRICATION TECHNIQUE FOR PIM-1 ASYMMETRIC MEMBRANES DOPED WITH LOW-MOLECULAR-WEIGHT POLYETHYLENE GLYCOL FOR GAS SEPARATION
A large-scale fabrication technique for PIM-1 asymmetric membranes doped with low-molecular-weight polyethylene glycol for gas separation. Based on the membrane fabrication technique of dry/wet phase inversion, firstly, the coagulation process of casting solution is regulated by low-molecular-weight polyethylene glycol to thin the dense functional layer, to improve the hydrophilicity of the membrane structure, and to form mass transfer channels for the diffusion of polyethylene glycol into the dense functional layer. Then, directional migration and enrichment of polyethylene glycol are realized through capillary action induced by directional water evaporation for large-scale fabrication of PIM-1 asymmetric membranes doped with low-molecular-weight polyethylene glycol in the dense functional layer for gas separation, and thereafter high permeation ability and high selectivity are achieved simultaneously.
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (China)
DALIAN UNIVERSITY OF TECHNOLOGY (China)
Inventor
Yang, Ronggui
Lei, Yifan
Hu, Yongyan
Liu, Xiuliang
Wen, Rongfu
Abstract
The disclosure relates to the field of micro-nano structure-enhanced heat transfer surfaces and provides a 3D printing-assisted multi-scale metal three-dimensional surface structure preparation method and product. The method includes the following steps. A micron-level and highly-precise three-dimensional structure mask is prepared through a 3D printing technology, the hollow portion of mask is matched with the target structure model. Material conversion is performed on a metal matrix fixed with the mask, and a target metal is obtained. Herein, the metal matrix is machined first, and a surface of the target metal is matched with the structure model. In the preparation method provided in the disclosed embodiment, the precision of the metal structure is improved by improving the precision of the template. The multi-scale and multi-material heat exchange structure with micron-level precision and a complex structure is prepared on the metal surface to improve the heat exchange efficiency of phase change
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A forming device and a forming method for a part with a regular cross-section are provided, and relates to the technical field of metal member forming and manufacturing. A part to be formed is heated by a part heating temperature control assembly to obtain required microstructure evolution, so that the forming performance is improved. A temperature control die assembly can be heated by setting die heating assemblies, so that hot stamping, die quenching and stress relaxation can be carried out. The internal stress state of the part is controlled by an axial force control assembly.
A bio-robot future action prediction method fusing visual images and neural signals. The method uses historical behavior data of a bio-robot carried by a video and auto-encoded data of brain neural signals of the bio-robot to predict future motion behaviors of the bio-robot. The method models motion intentions of the bio-robot by means of a visual image sequence, and fuses multi-modal intrinsic brain neural signals of the bio-robot, so as to construct a reversible neural network to predict future actions and motion videos of the bio-robot, and enhance the generalization ability of the model by combing the historical data and an adaptive update policy, thus finally achieving refined prediction of future motion behaviors of the bio-robot.
The present invention discloses a multistage variable burning rate solid rocket motor and a forming method. A multi-material composite fiber skeleton structure is embedded inside a propellant in the present invention, so that the original burning rate of the propellant presents multistage changes to achieve the function of multistage thrust. The fiber skeleton structure embedded in the solid rocket motor is formed by additive manufacturing, fixed in a combustion chamber, and then charged at one time to complete the forming of a motor grain. The design can greatly increase the burning rates of the propellants of end-burning and bore-burning motors, and can also conduct multistage adjustment for the burning rates of the motors by changing the fiber skeleton and structure, so as to satisfy the requirements of missile weapon systems for multistage power propulsion. The present invention greatly simplifies the technological production process of the existing single-chamber multi-thrust motor.
A biorobot robust motion prediction method incorporating adversarial training. In a harsh adversarial environment with human interference, for a biorobot motion behavior prediction task in the adversarial environment, a biorobot motion image captured by a camera is used as an input, and a proxy defense model is introduced, so as to design an adversarial training algorithm capable of performing robust behavior prediction on the motion process of a biorobot.
A haptic evaluation method and device. The method comprises: acquiring application layer parameters and network side parameters of a target service, wherein the application layer parameters comprise haptic information of the target service, and the network side parameters comprise at least one of the latency, reliability or jitter of the target service; and on the basis of the application layer parameters and the network side parameters, determining a haptic evaluation indicator of the target service, wherein the haptic evaluation indicator is used for evaluating the quality of user haptic experience of the target service. The haptic evaluation method and device in the embodiments of the present application can save time and labor costs, and can improve the accuracy of haptic evaluation.
The present invention discloses a clamping system and an adaptive clamping method for turning of thin-walled curved components. A curved component is positioned and clamped on the upper surface of the vacuum adsorption fixture, and a rubber sealing ring on an auxiliary support of the fixture is in contact with the inner contour of the curved surface to separate the closed space in the component into three independent adsorption force action areas: a flange end surface, a first vacuum chamber and a second vacuum chamber; and three independent vacuum channels are arranged in the fixture, the vacuum channels are communicated with sub-circuits through pneumatic hoses, and the on-off of the circuits is controlled by electromagnetic directional valves. The vacuum adsorption clamping system with multiple clamping modes can be adaptively adjusted according to the process stage of curved components.
The present invention belongs to the antifriction technical field of turning tools. Disclosed are a design method for a variable-geometric parameter antifriction turning tool, and a configuration. The method comprises: first analyzing the wear form and causes of a flank face of a turning tool during a turning process of a material which is difficult to machine; second, from among adjustable geometric parameters of the tool, preferentially selecting the rake angle, the clearance angle and the rounded edge radius of the turning tool as parameters to be designed; then, on the basis of software simulation, acquiring the rule of the parameters to be designed affecting the width of a flank wear land of the turning tool; and finally, adjusting the rake angle, the clearance angle and the rounded edge radius of the tool, so as to uniformly vary the parameters along the rounded edge of the tool and keep same constant at the straight edge of the tool, thereby finishing the design of the variable-geometric parameter turning tool. The present invention uses software simulation to evaluate the antifriction performance of tools of different configurations, thereby saving time and cost. In addition, the wear of the flank face at the tool nose of the designed variable-geometric parameter turning tool can be effectively reduced and further deterioration of the wear of a tool recess can be restrained, thereby satisfying differentiated antifriction requirements of different cutting positions of the turning tool.
A gear transmission and rotation amplification type device for reducing sloshing is arranged inside and located above a body of an LNG storage tank. The device includes a combination disc, a wheel set, an outer sleeve, an overhanging fan blade, ball screws, springs and a sloshing plate. The combination disc is connected with the sloshing plate below through the springs. The combination disc is fixed above an inner wall surface of the body of the LNG storage tank, while the sloshing plate is fitted but not fixedly connected with the inner wall surface of the body of the LNG storage tank. The wheel set, the outer sleeve, the overhanging fan blade and the ball screws are arranged between the combination disc and the sloshing plate and located below the liquid level in the LNG storage tank.
An apparatus and method for cancelling leakage interference of phased array antenna based on microwave photonic. The apparatus consists of a signal generation unit, a splitter, a beaming unit, a transmitting antenna, a receiving antenna, a microwave photonic channel construction array, a control unit, a combiner array, and a signal receiving unit. The receiving antennas are divided into several receiving subarrays, and the microwave photonic channel construction unit corresponds to each receiving subarray, respectively. For each receiving subarray, a reference channel is constructed by adjusting the array of amplitude adjustment unit, the array of time delay adjustment unit, and the array of phase adjustment unit in the microwave photonic channel construction array. Thus, the reference channel has the matched delay, equal amplitude response, and opposite phase response relative to the leakage interference channel, based on which the leakage interference of phased array antenna is cancelled.
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 3/28 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the amplitude
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
H04B 1/10 - Means associated with receiver for limiting or suppressing noise or interference
A method for measuring coating thickness, roughness and interface stiffness by using an ultrasonic phase derivative spectrum, the method belonging to the technical field of ultrasonic non-destructive testing. In the method, an ultrasonic testing system comprising a coating sample, an ultrasonic flat probe, an ultrasonic flaw detector, an XYZ three-dimensional stepping apparatus and a computer is used. In the method, a phase screen approximation spring model of ultrasonic waves acting on a rough and weakly bonded interface is provided, an ultrasonic phase derivative spectrum of ultrasonic waves being vertically incident on a three-medium two-interface structure consisting of a coupling medium, a coating and a substrate is derived, high-sensitivity ranges of the ultrasonic phase derivative spectrum in respect of coating thickness, roughness and interface stiffness are identified by means of sensitivity analysis, and deviations introduced by initial phases of reference signals and detection signals are eliminated by means of cross-correlation analysis, thereby implementing simultaneous quantitative characterization of coating thickness, roughness and interface stiffness. The method overcomes the dependence of conventional ultrasonic amplitude spectrums or phase spectrums on high-quality reference signals, and solves the problem of it being difficult to use existing non-destructive testing methods to simultaneously measure roughness and interface stiffness.
The method for measuring thickness, roughness and interface stiffness of coating layer by using ultrasonic phase derivative spectrum which relates to technical field of the ultrasonic non-destructive testing. The method adopts an ultrasonic detection system which includes a sample of the coating layer, an ultrasonic flat probe, an ultrasonic flaw detector, a XYZ three-dimensional stepping device and a computer. The method derives UPDS (Ultrasonic phase derivative spectrum) when the ultrasonic wave is vertically incident on structure with three-medium and two-interface including coupled medium/coating layer/substrate, to conduct sensitivity analysis to identify the high sensitivity range of ultrasonic phase derivative spectrum to thickness, roughness and interface stiffness of coating layer, and to conduct correlation analysis to eliminate deviation introduced by initial phase of the reference signal and the detection signal, so as to achieve simultaneous quantitative characterization of thickness, roughness as well as interface stiffness of coating layer.
G01N 29/46 - Processing the detected response signal by spectral analysis, e.g. Fourier analysis
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
G01B 17/08 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring roughness or irregularity of surfaces
G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details providing acoustic coupling
56.
ALL-ROUND OBSERVATION UNDER-ACTUATED CAPSULE ROBOT AND AXIS ROLLING-OVER LOCOMOTION METHOD THEREOF BY MAGNETIC FIELD CONTROL
The present invention discloses an all-round observation under-actuated capsule robot and an axis rolling-over locomotion method thereof by magnetic field control. A radially magnetized NdFeB magnet ring is loaded into an inner cavity of a capsule sphere in a non-connected way, and the NdFeB magnet ring independently idles with the rotating magnetic field around a capsule axis and is completely suspended in the inner cavity filled with silicone oil in the capsule sphere. Under the drive of a coaxial following magnetic moment, the under-actuated capsule sphere cannot rotate around the capsule axis, but the capsule axis can roll synchronously with the rotation axis of the magnetic field. The present invention increases the scanning range of the capsule, enhances environmental adaptability, and has high accuracy of fixed point posture adjustment of the capsule, rolling locomotion stability, good visual observation effect and good application prospect.
A61B 1/273 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
57.
Heat exchanger based on gyroid/diamond hybrid minimal surface-based disturbance structure
The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.
F28F 7/02 - Blocks traversed by passages for heat-exchange media
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
B33Y 80/00 - Products made by additive manufacturing
58.
HIGH-ENTHALPY-VALUE POLYETHER-AMINE-BASED FLEXIBLE SHAPE-STABILIZED PHASE-CHANGE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
The present invention belongs to the field of polymer phase-change energy storage materials. Disclosed are a high-enthalpy-value polyether-amine-based flexible shape-stabilized phase-change material, and a preparation method therefor and the use thereof. The phase-change heat storage material is made of a flexible polyether amine polymer network and an organic solid-liquid phase-change component loaded in the polymer network in situ, wherein the flexible polyether amine polymer network and the organic phase-change component have good compatibility, and organic phase-change molecules are wound around a polyether amine polymer chain to form a crystal domain having overall flexibility, thereby achieving an organic combination of a high heat storage capacity and flexibility. The problems of a low loading rate of the phase-change component and liquid leakage of the phase-change material are solved; moreover, the material is endowed with overall flexibility. The design and development of the high-enthalpy-value flexible shape-stabilized phase-change material have an important application value on the occasions of flexible wearables, heat management of electronic devices, etc.
C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
C08G 59/00 - Polycondensates containing more than one epoxy group per moleculeMacromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compoundsMacromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
59.
FINE STRUCTURE MANUFACTURING METHOD BASED ON MASK PROTECTION AND NON-CONTACT POLISHING PROCESS
A fine structure manufacturing method based on mask protection and a non-contact polishing process. The method comprises the following steps: pretreatment; photoresist applying; exposure; development; non-contact polishing; and photoresist removal detection. In a fine structure machining procedure, a region of a substrate (1) that is not covered by a photoresist (2) is polished to realize material removal, and with regard to a region that is protected by the photoresist (2), that is, a mask protected region, material removal is not realized on the substrate (1), and only the photoresist (2) is removed. Since a material removal rate of the photoresist (2) is less than a material removal rate of the substrate (1), a height difference is generated between the mask protected region and the unprotected region, that is, a fine structure that needs to be manufactured is obtained.
B24B 1/00 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
The present invention belongs to the field of aviation compressor control, and relates to an aviation compressor active stabilization control method based on disturbance observation and compensation. Modeling errors and external disturbances of models used in design of a controller are observed, and sub-controllers are individually designed for state variables of interest to compensate for the disturbances, thus to simultaneously solve the problems of rotating stall and surge of an aviation compressor in a variety of complex situations. Partial differential model of the compressor is converted to an ordinary differential equation by Galerkin projection method, partial differential characteristics of the compressor are reserved in the form of disturbances during conversion, and an active stabilization controller of the aviation compressor is designed in combination with disturbance observation and compensation technology, thus to ensure that the models used in the design of the controller have higher accuracy, high robustness and high reliability.
A method for recognizing a motor imagery electroencephalography (MI-EEG) signal based on a capsule network (CapsNet) is provided, and relates to the technical field of deep learning and brain-computer interfaces (BCIs). An electroencephalography (EEG) time series is mapped into a three-dimensional (3D) array form based on a spatial electrode distribution. By combining 3D convolution, a CapsNet constructs a three-dimensional capsule network (3D-CapsNet) for recognizing an MI-EEG signal. A 3D convolution module performs feature extraction from both a temporal dimension and an inter-channel spatial dimension through a plurality of layers of 3D convolution to obtain a low-level feature. The low-level feature output by the 3D convolution module is integrated through the CapsNet to obtain a high-level spatial vector containing an inter-feature relationship. A primary capsule and a motor capsule are connected through dynamic routing, and finally a CapsNet module outputs a classification result through a nonlinear activation function squash.
Provided in the present application are an image processing method and a related apparatus. The image processing method comprises: acquiring a first image; determining blur information indicating a blur region in the first image; and using a first neural network to perform deblurring processing on the first image on the basis of the first image and the blur information of the first image, so as to obtain a second image. In the method, the first neural network is trained to deblur an image. Specifically, during training, the first neural network is based on an image and blur information for indicating a blur region of the image. Therefore, compared with a neural network obtained by means of training on the basis of only an image, when a first neural network is used for deblurring an image, it is helpful to improve the definition of the deblurred image.
The present invention provides a method for impact analysis of port construction on a coastal ecotone based on remote sensing data, which belongs to the technical field of remote sensing application. The method quantifies landscape data and satellite image data, and then converts the data into intuitive images to observe the spatio-temporal change of the coastal ecotone after port construction. The method includes: step 1: obtaining remote sensing image data of a research region; step 2: preprocessing the remote sensing image data to obtain processed images; step 3: establishing an evaluation system of human disturbance indexes; and step 4: generating a spatio-temporal distribution map of regional disturbance indexes. The present invention provides a method capable of quantifying the impact range and the impact degree of the port construction factor on the coastal ecotone, provides an idea for reducing the impact of port construction on a surrounding environment.
The present invention belongs to the field of computational mechanics, and provides an adaptive multi-level phase-field method for brittle fracture of elastic materials under thermal shock, thus to provide a new numerical calculation method for efficient fracture study. In the present invention, damage degree of a material is characterized by a phase field, and the multi-level hp-FEM is used as an adaptive strategy to implement dynamic discretization in a process of crack propagation under thermal shock. Compared with previous adaptive phase-field fracture models, the present invention has no hanging nodes, and has simple numerical implementation and high calculation efficiency, which can effectively predict the fracture behavior of a structure. At the same time, three pre-existing crack treatment techniques are developed to initialize the phase field. The temperature, displacement and phase fields are solved by an alternating minimization algorithm, which can stably and effectively solve the multi-field coupling large-scale fracture problems.
The present invention provides a spatiotemporal dynamic system soft sensing method for automatically determining a partial differential equation (PDE) structure and belongs to the technical field of soft sensing of neural networks. Firstly, a loss function for training a coupled physics-informed neural network with a recurrent prediction mechanism is constructed to obtain a solution and a driving source which satisfy a PDE used for describing spatiotemporal industrial processes; secondly, differential operator candidates are obtained by an automatic differentiation method, and an appropriate PDE structure is selected from the differential operator candidates to accurately describe the spatiotemporal industrial processes; and finally, the soft sensing result is verified using heat diffuse phenomena and actual vibration processes. The CPINNRP-AIC is suitable for soft sensing methods of multi-class dynamic systems with spatiotemporal dependence, can achieve the effective acquisition of key variable values for high-end complex equipment such as an aero-engine in operation processes.
A spatiotemporal dynamic system soft measurement method for automatically determining a partial differential equation structure, belonging to the technical field of the soft measurement of neural networks. The method comprises: first, constructing a loss function used for training a coupled physics-informed neural network having a recurrent prediction mechanism, so as to obtain solutions and source items that meet a partial differential equation used for describing a spatiotemporal industrial process; second, using an automatic differential method to obtain a differential operator candidate library, and selecting an appropriate partial differential equation structure from the differential operator candidate library to accurately describe the spatiotemporal industrial process; and finally, using a heat diffusion phenomenon and an actual vibration process to verify a soft measurement result. The CPINNRP-AIC provided in the present invention is applicable to a soft measurement method for multiple types of dynamic systems having spatiotemporal dependency features, comprising a heat diffusion phenomena in an actual industrial process, a fluctuation phenomena in an actual vibration process, etc. The present invention can realize the effective acquisition of key variable values during the operation of high-end complex equipment, such as an aero-engine, thereby providing assurance for a good control performance and safe operation stability of high-end industrial equipment, and has practical engineering application significance.
The present invention relates to the technical field of satellite network caching. Disclosed is an NDN-based satellite network coding caching method. Aiming at the problem that transmission correlation is generated when content is segmented by traditional NDN caching, that is, a user has to acquire data blocks contextually associated with a request file block to recover source data, the present invention uses a coding operation to remove transmission correlation of data, in order to realize efficient content distribution, uses minimization of backhaul link load and content acquisition time delay as an optimization target for placing satellite node coded packets, uses a multi-population ant colony algorithm to solve an optimization problem and achieves quick retrieval of content, and designs a cooperative issuing mechanism of a cluster, thus allowing the user to reduce satellite link load for content issuing under coverage of a plurality of satellite nodes whilst simplifying satellite network management.
Disclosed in the present invention are a point cloud feature recognition and labeling algorithm based on improved PointNet++. The algorithm comprises a supervoxel growth method suitable for a deep learning network, and a deep learning network suitable for large-component scan data. In the method, PointNet++ is improved, a deep learning network suitable for large-scale point cloud recognition is constructed, and point clouds in regions are processed, the interrelationship between the point clouds in the regions are also taken into consideration, so that the technical problem of conventional PointNet series networks being not capable of processing large-scale point clouds is solved. Provided is a supervoxel growth method which is suitable for determining feature parameters within voxels that are highly distinctive, computationally efficient and highly robust, so as to realize fast, efficient and meaningful voxelized point cloud calibration.
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
69.
HIGH SENSITIVITY MAGNETIC SENSING MATRIX CHIP WITH TWO-DIMENSIONAL ELECTRONIC GAS CHANNEL STRUCTURE AND THE MANUFACTURING PROCESS
A high-sensitivity two-dimensional electron gas channel structure magnetic sensing matrix chip includes a magnetic sensing matrix, a shift register, and a back-end interface circuit. The magnetic sensing matrix includes several matrix units including substrate, buffer layer, channel layer, and barrier layer. A two-dimensional electron gas channel material heterojunction structure includes buffer layer, channel layer, and barrier layer on the substrate, and the horizontal Hall element and switching device are above the channel layer. The beneficial effects include a high sensitivity magnetic sensing matrix chip with two-dimensional electronic gas channel structure can be used for real-time, static and dynamic measurement of multi-dimensional magnetic field distribution under high temperature, high pressure, high radiation and other harsh environments to carry out structural and circuit innovation and production.
A generative adversarial multi-headed attention neural network self-learning method for aero-engine data reconstruction belongs to the field of end-to-end self-learning of aero-engine missing data. First, the samples are pre-processed, and the machine learning algorithm is used to pre-fill the normalized data first, and the pre-filled information is involved in the network training as part of the training information. Second, a generative adversarial multi-headed attention network model is constructed and the trained sample set is used to train the generative adversarial multi-headed attention network model. Finally, the samples are generated using the trained sample generator G. The method uses the generative adversarial network to better learn the distribution information of the data, and uses parallel convolution and multi-headed attention mechanism to fully exploit the spatial and temporal information among the aero-engine data.
2 geological sequestration and use thereof. A large-scale reactor body is developed, and a geological reservoir at a depth of 800 to 3000 meters is simulated. A modular built-in model device is researched and developed, a multi-type and variable-structure reservoir remodeling technology is developed, and mutual coupling of modules can be achieved. The design idea of separating the pressure reactor from the built-in sample model is adopted in the device. The confining pressure, the pore pressure, the temperature gradient, and the axial load of the device can be independently controlled through a temperature control mechanism and a loading mechanism respectively, so that the restoration of the state of in-situ stresses in the reservoir is realized.
E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
72.
SATELLITE NETWORK CODE CACHING METHOD BASED ON NDN (NAMED DATA NETWORKING)
The present invention discloses a satellite network code caching method based on Named Data Networking (NDN) and relates to the technical field of satellite network caching. Aiming at the transmission dependency generated by segmenting a content by conventional NDN caching, i.e., the problem that a user has to acquire a data block that requests a file block to be associated up and down to recover source data. The method removes the transmission dependency of data by adopting an encoding operation. To achieve efficient content distribution, the method places satellite node encoding packets by taking a minimized backhaul link load and a minimized content acquisition time delay as optimization objectives. An optimization problem is solved through a multi-population ant colony algorithm, and meanwhile, the content is retrieved rapidly.
H04W 40/24 - Connectivity information management, e.g. connectivity discovery or connectivity update
G06N 3/006 - Artificial life, i.e. computing arrangements simulating life based on simulated virtual individual or collective life forms, e.g. social simulations or particle swarm optimisation [PSO]
A coupled physics-informed neural network for solving displacement distribution of a bounded vibration string under an unknown external driving force is provided. A novel PINN is proposed, called C-PINN, used for solving the displacement distribution of the bounded vibration string under an external driving force with little or even no priori information. It comprises two neural networks: NetU and NetG. NetU is used for approximating satisfying the displacement distribution of the bounded vibration string under study. NetG is used for regularizing u in the NetU to satisfy the displacement distribution of the approximation of NetU. The two networks are integrated into a data-physics-hybrid loss function. In addition, a proposed hierarchical training strategy is used for optimizing the loss function and realizing the coupling of the two networks. Finally, the performance of the C-PINN in solving the displacement distribution of the bounded vibration string under the external driving force is verified.
A fluid polishing device for the inner surface of an elongated tube, comprising a working platform (13), fluid processing units, and a magnetically controlled fluid unit. Two fluid processing units are provided, and are symmetrically mounted on the left side and the right side of the working platform (13); the left end and the right end of a workpiece (7) are respectively connected to the fluid processing units on the left side and the right side; the magnetically controlled fluid unit is located below the workpiece (7), and magnetic particles in a polishing solution in the fluid processing units are controlled by means of a magnetic field applied by a magnetic pole (11), so that the magnetic particles form, in a magnetic direction, a flux linkage having a certain yield strength, and are attracted on the inner surface of the workpiece (7) to form a local blocking block, thereby reducing the actual circulation diameter of the polishing solution in a blocked region, thus increasing the flow rate of the polishing solution, and improving the polishing strength. Also provided is a method using the polishing device. The polishing device and method can selectively polish regions of elongated tubes having an extremely fine diameter and an extremely large length-to-diameter ratio.
A multi-scale hybrid attention mechanism modeling method for aero-engine remaining useful life prediction belongs to the field of health management and prediction technology for aero-engines. Firstly, preprocess the data to obtain the sample, set the RUL label, and obtain the true value of the remaining useful life of the sample. Secondly, a multi-scale hybrid attention mechanism model consisting of position encoding layer, feature extraction layer, and regression prediction layer is constructed. Thirdly, train the model, and make the difference between the predicted value output by the model and the true value of the remaining useful life by minimizing the loss function until it reaches the stop standard. Finally, use the trained model to predict the remaining useful life. The method can achieve full fusion of information from different time steps of a single sample, taking into account the correlation between all samples.
B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G06F 119/04 - Ageing analysis or optimisation against ageing
76.
METHOD OF DUST POLLUTION MONITORING AND RISK FOREWARNING FOR DRY BULK PORT BASED ON INSPECTION ROBOT
A method of dust pollution monitoring and risk forewarning for a dry bulk port based on an inspection robot belongs to the technical field of environmental monitoring. The method plans an inspection route of the inspection robot in the stage of the inspection robot path planning, and makes the inspection robot perform an inspection task automatically along the planned route; in the stage of data acquisition, transmission, and processing, a multi-source environmental monitoring module installed on the inspection robot is used for monitoring the concentration of dust pollutants in the air and environmental parameters in real-time; and in the stage of data analysis and risk forewarning, the monitoring data is analyzed and visualized to judge a possible over-standard risk of dust pollutant concentration and perform forewarning. The present invention can improve the resolution and flexibility of dust pollution monitoring in the dry bulk port.
Provided in the present invention is a testing apparatus for long-term loading and synchronized measurement of concrete-filled steel tube-stiffened composite structures, the testing apparatus comprising a loading assembly, a load-measuring assembly, a deformation-measuring assembly, and a concrete-filled steel tube-stiffened composite structure. The loading assembly primarily consists of loading plates, loading rods, nuts, and pre-tightened disc springs; the load-measuring assembly consists of force sensors; the deformation-measuring assembly primarily consists of a measuring apparatus; and the concrete-filled steel tube-stiffened composite structure is a force-bearing structure. The testing apparatus for long-term loading and synchronized measurement of concrete-filled steel tube-stiffened composite structures allows for loading in stages and is capable of synchronously measuring the long-term internal forces and deformation of inner concrete-filled steel tubes and outer sleeving reinforced concrete; solves the key problem that during construction in stages, the internal forces and the deformation of the inner concrete-filled steel tube part and the outer sleeving reinforced concrete part cannot be precisely analyzed; and provides reliable test results for further research on the internal force redistribution patterns and the deformation progress patterns of the described structures under long-term load.
The present invention belongs to the field of new-energy power prediction of electric power systems. Disclosed is a short-term wind-photovoltaic power prediction method based on high-dimensional multivariate meteorological data fusion. In the present invention, an acquired meteorological data set ERA5 is fully utilized, a massive number of meteorological factors are greatly expanded in terms of physical causality, spatial scales, and temporal scales, and characteristic relationships between the meteorological factors and new-energy power are fully explored, thereby improving the prediction accuracy. Power-related meteorological factors are greatly expanded by using a physical causality method and a spatial longitude and latitude envelope method, so as to form a high-dimensional multivariate meteorological factor set. Dimensionality reduction is performed on ultra-high-dimensional meteorological data for comprehensive correlation analysis and fusion to prevent correlations and information overlaps between multi-dimensional meteorological data from affecting a power prediction model; and then, a sliding time window method is used to form a power prediction sample set. The prediction model is fitted according to meteorological data and actual power station operation data, and is applied to actual engineering projects in Dali, Yunnan for verification. The prediction accuracy of the present invention far exceeds that of conventional prediction methods, thus showing relatively strong robustness and universality.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
79.
APPARATUS AND METHOD FOR DYNAMIC TRACKING-BASED REFERENCE CONTINUOUS HEAT MEASUREMENT AT MICROSCALE
An apparatus and method for dynamic tracking-based reference continuous heat measurement at a microscale. The apparatus comprises: a material feeding and discharging system, wherein the material feeding and discharging system is connected to a microscale continuous reaction system, and the material feeding and discharging system is controlled by a central control and data acquisition system and injects a material into the microscale continuous reaction system; the microscale continuous reaction system, wherein a micro-channel reaction chip B (22) in the microscale continuous reaction system is used for causing material reaction, and a micro-channel reference chip A (21) in the microscale continuous reaction system is used for simulating a heat absorption/release process of the reaction in the micro-channel reaction chip B (22) and indirectly obtaining heat absorbed/released in the micro-channel reaction chip B (22); and the central control and data acquisition system, wherein the central control and data acquisition system acquires the heat absorbed/released and calculates reaction heat on the basis of the heat absorbed/released. According to the method, the whole heat measurement process is simple and rapid to operate, and the accuracy of heat measurement can be ensured without repeated correction.
G01N 25/48 - Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
80.
PREPARATION METHOD FOR CONDUCTIVE CARBON NANOTUBE-POLYVINYLIDENE FLUORIDE COMPOSITE HOLLOW FIBER MEMBRANE AND ELECTROCHEMICAL COUPLING MEMBRANE SEPARATION ASSEMBLY
A preparation method for a conductive carbon nanotube-polyvinylidene fluoride composite hollow fiber membrane, which preparation method comprises the following steps: (1) formulation of a spinning solution, which involves: adding carboxylated carbon nanotubes and a dispersing agent to a solvent, stirring the mixture at 40-80ºC to uniformly disperse the carbon nanotubes, then adding polyvinylidene fluoride, and then continuously stirring same to completely dissolve polyvinylidene fluoride, so as to obtain a spinning solution; and (2) preparing a carbon nanotube-polyvinylidene fluoride composite hollow fiber membrane by means of wet spinning, wherein the hollow fiber membrane is subjected to conductive encapsulation and connection to construct an electrochemical coupling membrane separation assembly that can achieve the combination of an electrochemical effect and a membrane separation function, thereby improving the anti-pollution capacity of a separation membrane.
A long-term scheduling method for an industrial byproduct gas system comprises the following steps: dividing information granularity according to the fluctuation features of energy data to form semantic representation of a data sample; with granular data features as input, constructing a deep contrastive network structure through expert scheduling experience data, and constructing knowledge representation under different scheduling states in modes of qualitative and quantitative learning; establishing a fully connected output layer to fit expert scheduling amount, to obtain an initial scheduling policy based on experience knowledge; constructing an actor-critic architecture to calculate a compensation policy that considers long-term scheduling performance.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
The present invention provides a carbon dioxide ocean liquid balloon storage method. The method comprises: suspending an uncharged liquid balloon device in seawater at a depth of not less than 600 m in advance; conveying liquid carbon dioxide to an inside of the liquid balloon device through a conveying pipe; when the liquid carbon dioxide charging volume reaches the rated charging volume of a carbon dioxide submarine storage device, stopping charging; closing a stop valve of a liquid balloon inlet pipe and disconnecting the carbon dioxide conveying pipe from the liquid balloon inlet pipe; and controlling the liquid balloon device to enable the liquid balloon device to be placed in a seabed at the appropriate depth, with the depth of the seabed of not less than 3,000 m. The whole liquid balloon device is of a frame liquid balloon structure, and comprises a frame structure and a liquid balloon structure.
NingBo Inst. of Dalian University of Technology (China)
Inventor
Kang, Huijun
Chen, Rongchun
Wang, Tongmin
Guo, Enyu
Chen, Zongning
Li, Tingju
Cao, Zhiqiang
Lu, Yiping
Jie, Jinchuan
Zhang, Yubo
Abstract
Provided are a P-type ZrCoSb-based half-Heusler single crystal alloy and a preparation method thereof. The method for preparing the P-type ZrCoSb-based half-Heusler single crystal alloy includes: subjecting alloy raw materials to smelting under a first protective atmosphere to obtain a half-Heusler polycrystalline alloy ingot, the alloy raw materials corresponding to a chemical composition of the P-type ZrCoSb-based half-Heusler single crystal alloy; and subjecting the half-Heusler polycrystalline alloy ingot to vertical Bridgman directional crystallization under a second protective atmosphere to obtain the P-type ZrCoSb-based half-Heusler single crystal alloy. The P-type ZrCoSb-based half-Heusler single crystal alloy has the chemical composition of ZrCoSb1-xSnx, x in the ZrCoSb1-xSnx being in a range of 0.1≤x≤0.3; and the P-type ZrCoSb-based half-Heusler single crystal alloy has an MgAgAs-type crystal structure.
ii(t) by using the optimal candidate; determining whether to iterate to a maximum number of iterations; and obtaining an optimal parameter combination of the prediction model and training the prediction model, and obtaining a prediction model that has converged after optimization, so as to identify an anomaly caused by a cyberattack. According to the method in the present invention, an anomaly caused by a cyberattack can be identified.
A method, system and device for allocating total emission reduction of a water environmental pollution load are provided. The method includes: dividing a watershed based on terrain elevation information in watershed-related data to generate a plurality of watershed control units; with a watershed control unit as a basic unit, estimating a pollution load output in each watershed control unit by using an output coefficient method; acquiring GDP of each watershed control unit, and combined with the pollution load output, calculating relative environmental efficiency of each watershed control unit by using a data envelopment method; quantifying a contribution rate of a pollution load produced by each watershed control unit to a pollution load of a section of river entering the sea one by one based on a constructed watershed water environmental model; and formulating a pollutant emission reduction scheme according to the relative environmental efficiency and the contribution rate.
A network attack prediction method, device, computer equipment and storage medium are provided. The network attack prediction method includes: performing preprocessing, time series modeling and data feature analysis on the network traffic data set; dividing the network traffic data set into a normal traffic data set and an attack traffic data set; initializing parameters of the improved grey wolf algorithm; constructing a prediction model and initializing parameters of the prediction model; using the grey wolf optimizer GWO search strategy to obtain a first candidate of the optimal grey wolf; using the hunting DLH search strategy to obtain another candidate of the optimal grey wolf, selecting an optimal candidate; updating Xi(t) with the optimal candidate; judging whether to iterate to the maximum iterations; obtaining an optimal parameter combination of the prediction model and training the prediction model; obtaining an optimized convergent prediction model and identifying anomalies caused by network attacks.
A novel three-dimensional ultrasonic elliptical vibration cutting device, comprising has a two-dimensional ultrasonic vibration transducer, an asymmetric ultrasonic horn, and a cutter. The cutter is installed at the output end of the asymmetric ultrasonic horn, the two-dimensional ultrasonic vibration transducer is used for outputting ultrasonic longitudinal-flexural complex vibration, the asymmetric ultrasonic horn is used for converting and decomposing longitudinal vibration output by the two-dimensional ultrasonic vibration transducer into second-phase flexural vibration and longitudinal vibration, and outputting a three-dimensional ultrasonic elliptical vibration trajectory on the cutter in combination with first-phase flexural vibration output by the two-dimensional ultrasonic vibration transducer. A three-dimensional ultrasonic elliptical vibration trajectory is output in a double-excitation mode. The output three-dimensional ultrasonic elliptical vibration trajectory is adjusted according to different cutting applications and machining requirements so that the device has better adaptability.
B26D 7/08 - Means for treating work or cutting member to facilitate cutting
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
88.
CLOSTRIDIUM-DERIVED QUORUM SENSING PEPTIDE, PREPARATION METHOD AND USE
DALIAN UNIVERSITY OF TECHNOLOGY NINGBO RESEARCH INSTITUTE (China)
Inventor
Xue, Chuang
Ren, Shijie
Abstract
Provided are a Clostridium-derived quorum sensing peptide, a preparation method and the use, belonging to the field of biotechnology and medicines. A quorum sensing peptide (QSP) derived from Clostridium tyrobutyricum is successfully identified by means of combination of LC-MS/MS and genetics. The quorum sensing peptide is a linear peptide encoded by 12 amino acids, the amino acid sequence thereof being Gly-Ile-Val-Leu-Val-Pro-Thr-Ser-Leu-Val-Ser-Gly, and is named GIVL. In addition, Clostridium tyrobutyricum is an important industrial microorganism and novel probiotics, so that the obtained quorum sensing peptide is natural, safe and efficient. The result represents that the GIVL has α-glucosidase inhibition and hypoglycemic activities, has a simple structure, facilitates artificial synthesis, and has a good application prospect as a novel, promising and high-safety candidate drug for diabetes.
The preparation and use of N-substituted phenyl-2-pyridone and an endoperoxide, wherein the endoperoxide can be converted into N-substituted phenyl-2-pyridone and simultaneously release singlet oxygen and triplet oxygen. The N-substituted phenyl-2-pyridone and the endoperoxide have a great effect of resisting several types of fibrosis and can significantly inhibit inflammatory factors, and can not only inhibit the proliferation and migration of cancer cells at the cellular level, but can also inhibit the growth of various tumors at the living-body level.
A61P 11/00 - Drugs for disorders of the respiratory system
A61P 13/12 - Drugs for disorders of the urinary system of the kidneys
A61P 1/16 - Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
A61K 31/539 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and at least one oxygen as the ring hetero atoms, e.g. 1,2-oxazines having two or more oxygen atoms in the same ring, e.g dioxazines
A61K 31/4412 - Non-condensed pyridinesHydrogenated derivatives thereof having oxo groups directly attached to the heterocyclic ring
A61P 9/00 - Drugs for disorders of the cardiovascular system
A wireless charging heating system, a wireless charging system, a wireless charging heating method and a wireless charging method are provided. The wireless charging heating system includes a lithium-ion battery stack; a battery stack power frequency converter connected with the lithium-ion battery stack and configured to convert direct current output from the lithium-ion battery stack into high-frequency alternating current; a heating system switch connected with the battery stack power frequency converter and configured to control on or off of the high-frequency alternating current; a heating coil connected with the heating system switch and configured to heat the lithium-ion battery stack; and a single chip microcomputer connected with the lithium-ion battery stack, the battery stack power frequency converter and the heating system switch and configured to monitor temperature of the lithium-ion battery stack and control an operating state of the battery stack power frequency converter and the heating system switch.
B60L 53/39 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer with position-responsive activation of primary coils
B60L 53/122 - Circuits or methods for driving the primary coil, i.e. supplying electric power to the coil
B60L 53/36 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
91.
METHOD FOR PREPARING DOUBLE-CROSSLINKING ANTIBACTERIAL HYDROGEL DRESSING WITH CONTROLLABLE RELEASE OF GALLIUM IONS
The present invention belongs to the technical field of medical biomaterial preparation. Disclosed is a method for preparing a double-crosslinking antibacterial hydrogel dressing with controllable release of gallium ions. The double-crosslinking antibacterial hydrogel dressing is prepared by means of using N-isopropylacrylamide, chitosan, polyethylene glycol diacrylate, an initiator and an accelerator as raw materials, and sequentially performing processes such as stirring, polymerization, freeze drying, and loading. The hydrogel dressing obtained in the present invention can sensitively realize high-temperature rapid controlled release and low-temperature slow controlled release of gallium ions and has a significant antibacterial performance. The hydrogel dressing has mechanical flexibility similar to that of the skin, and can fit well to wounds covering large joints such as the knees and ankles. In addition, the hydrogel dressing has good water absorption and swelling properties, which helps to absorb tissue fluid exuding from the surface of a wound. The preparation method of the present invention is simple, has mild process conditions, and has prominent application prospects regarding wound infection healing.
The present application provides a thin-walled shell model updating method and system. The method includes converting an influence of fine feature structures in a space shell structure on stiffness and mass equivalently onto a skin and a stiffener, so as to simulate the influence of the fine feature structures on a bearing capacity of a whole structure.
34344 nanoparticles used as a photosensitizer show good photocatalytic activity, can induce the dehydrogenation oxidation of the hydrazine compound in a water phase, and can be repeatedly recycled, thereby providing a green and sustainable approach for the photocatalytic reaction in the water phase.
C07C 245/08 - Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings with the two nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings, e.g. azobenzene
B01J 31/06 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
The present invention belongs to the technical field of metal forming manufacturing and discloses an integral forming method for a large-size thin-walled ring shell. The integral ring shell obtained by the forming method of the present invention has only one circumferential weld seam and one radial weld seam. If the two weld seams are located in an excisable process segment region, the target part without weld seams can be obtained after the process segment is cut off. The forming method of the present invention adopts a local thermal expansion forming method, plastic deformation occurs only in mold-constrained high temperature regions in a single local forming process, and a part with each region meeting the requirements can be obtained after several local thermal expansion forming processes. The forming method of the present invention can obtain two open cross-sectional ring shell components or multiple segmented ring shell components at one time.
The present invention belongs to the technical field of medicine. Provided are a porphin-BSH conjugate in boron neutron capture therapy and the use thereof. The porphin-BSH conjugate of the present invention is synthesized by means of conjugating an amino-substituted maleimide compound, and the method therefor is simple. The porphin compound has the characteristics of targeting tumor cells, better uptake of tumor cells, being safe and having low toxicity, and having the fluorescence phenomenon of a photosensitizer; can realize the targeted delivery of a second-generation boron carrier, i.e. sodium mercaptoundecahydrododecaborate (BSH), to tumor cells; and can increase the content of 10B atoms in cells to different degrees compared with BSH. Moreover, the in-vivo distribution of the conjugate is monitored in real time by means of the fluorescence characteristics of porphin, so as to formulate optimal neutron irradiation conditions. The conjugate is not only safe and has low toxicity, but also increases the content of 10B in cells to a great extent. Furthermore, the conjugate achieves good results during the BNCT in-vitro activity test, and therefore the conjugate can be studied as a future potential boron carrier for BNCT.
NATIONAL ASTRONOMICAL OBSERVATORIES, CHINESE ACADEMY OF SCIENCE (China)
Inventor
Fu, Xing
Sun, Siyuan
Li, Qingwei
Li, Hui
Li, Hongnan
Abstract
The present invention discloses a cable force identification algorithm considering semi-rigid constraints on both ends. The present invention only needs the basic parameters such as length and mass per unit length of a cable and then adopts a modal identification algorithm such as stochastic subspace method and frequency domain decomposition method to process signals collected by the acceleration sensor, and thus obtains the corresponding first natural frequency and mode shapes, and the cable force can be solved without obtaining any other data in advance. The present invention simplifies the cable to an equivalent single-degree-of-freedom system, modifies the first natural frequency of the cable through the mode shape of modal identification, avoids the cable force identification error caused by the change of the boundary mechanical characteristics of the cable, improves the efficiency and accuracy of cable force monitoring, has good application prospect in real-time monitoring of cable force of cable-stayed structure.
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
G01L 1/10 - Measuring force or stress, in general by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings
The present invention belongs to the technical field of computer vision, and proposes a lightweight real-time emotion analysis method incorporating eye tracking. In the method, gray frames and event frames that have synchronized time are acquired through event-based cameras and respectively input to a frame branch and an event branch; the frame branch extracts spatial features by convolution operations, and the event branch extracts temporal features through conv-SNN blocks; the frame branch has a guide attention mechanism for the event branch; and the spatial features and the temporal features are integrated by fully connected layers, The final output is the average of the n fully connected layer outputs, which represents the final expression. The method can recognize the emotional expression of any stage in various complex light changing scenarios; and in the case of limited accuracy loss, the emotion recognition time is shortened to achieve “real-time” user emotion analysis.
G06T 7/70 - Determining position or orientation of objects or cameras
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
G06V 40/18 - Eye characteristics, e.g. of the iris
98.
Engineering strain producing cordycepin and its derivative 3′-deoxyinosine, its preparation method and application
Cordyceps militaris which have unique Cm1 and Cm2 genes, the efficiency of cordycepin production is greatly improved, and subsequently the green process of producing cordycepin and its derivative 3′-deoxyinosine with carbon dioxide can be realized.
C12P 19/40 - Nucleosides having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides
C12N 9/16 - Hydrolases (3.) acting on ester bonds (3.1)
C12N 15/81 - Vectors or expression systems specially adapted for eukaryotic hosts for fungi for yeasts
99.
SILICON DIOXIDE VACCINE DELIVERY SYSTEM TAKING VIRUS-LIKE PARTICLES AS TEMPLATE, AND CONSTRUCTION METHOD AND APPLICATION OF SILICON DIOXIDE VACCINE DELIVERY SYSTEM
A silicon dioxide vaccine delivery system uses virus-like particles as templates. The particle morphology of the silicon dioxide vaccine system is 50-500 nm of nanoparticles, of which an antigenic component is 20-200 nm of virus-like particles, an adjuvant component is nano silicon dioxide, the silicon dioxide component is wrapped on the surface of the virus-like particle, and a mass ratio of silicon element to antigen is 50-0.5:1. The construction of the silicon dioxide vaccine delivery system includes steps of: (1) adding a proper amount of 3-aminopropyltriethoxysilane into an aqueous solution containing virus-like particles and stirring; (2) adding a proper amount of tetraethoxysilane into the dispersion system in step (1) and stirring; and (3) centrifuging a reactant obtained in step (2) and removing a supernatant to obtain a product. A vaccine constructed by means of the vaccine system can trigger a host to generate humoral and cellular immune levels.
SHENZHEN MUNICIPAL DESIGN & RESEARCH INSTITUTE CO., LTD (China)
CHINA RAILWAY 20TH BUREAU GROUP CO., LTD (China)
FUJIAN RAILWAY CONSTRUCTION CO., LTD OF CHINA RAILWAY 24TH BUREAU GROUP (China)
Inventor
Wang, Zhengzheng
Yu, Shiwei
Chen, Ximao
Xie, Xiong
Xie, Xin
Qin, Hui
Abstract
A tunnel groundwater limited discharge system based on intelligent regulation of distributed lining water pressure, comprising a lining structure, a partition drainage system, and a partition intelligent monitoring and control system. The partition intelligent monitoring and control system comprises a pressure data acquisition module, a microprocessor, and a control module. The pressure data acquisition module comprises an intelligent water pressure monitor (9) and an intelligent pressure measuring instrument (12). The microprocessor is configured to receive data information of the pressure data acquisition module, obtain groundwater discharge time according to data information of a corresponding area, and send a switch instruction to the control module. The control module is mounted on the partition drainage system. The system performs partition early warning monitoring and partition limited discharge on a tunnel, while monitoring the internal load of a lining. Contact monitoring and pressure relief of the internal and external loads of the lining are achieved, so that the stress of the lining structure is optimal, and the local ecological environment is protected.
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