Abstract

The present disclosure provides a method and system for evaluating anti-skid performance of airport pavement based on spaceborne SAR. the method obtains an echo intensity plot by processing SAR images; Establish a FNN model using machine learning algorithms that input objective conditions, surface texture parameters, measured friction coefficients, and output SAR echo intensity; Finally, input the SAR images to be predicted and the assumed friction coefficient into the FNN model, to compare and predict the anti-skid performance. The present disclosure is based on the properties of SAR echoes and establishes a correlation between SAR echo intensity and pavement friction coefficient in both temporal and spatial dimensions, enabling uninterrupted remote sensing monitoring of regional anti-skid performance over a long period and large spatial distribution.

IPC Classes  ?

• G01S 13/90 - Radar or analogous systems, specially adapted for specific applications for mapping or imaging using synthetic aperture techniques

Abstract

The present invention relates to an autonomous driving test method based on multi-agent swarm adversarial, a device and a medium. The method includes: deducing a conflict topological relationship graph between a tested autonomous vehicle and an agent; deducing a feasible planning space of the tested autonomous vehicle according to the conflict topological relationship graph; establishing a multi-agent swarm adversarial model based on a potential game under the feasible planning space according to a correlation between an individual reward of the agent and a swarm adversarial test effect of a multi-agent system, and solving and obtaining an optimal adversarial strategy of the multi-agent system against the tested autonomous vehicle, where in the multi-agent swarm adversarial model, an adversarial intensity is introduced, and the adversarial intensity is adaptively adjusted according to an actual response of the tested autonomous vehicle; and repeatedly executing the S1-S3 until an adversarial task is completed.

IPC Classes  ?

• G06N 7/01 - Probabilistic graphical models, e.g. probabilistic networks
• 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]
• G06N 3/092 - Reinforcement learning
• G06N 3/094 - Adversarial learning
• G06N 20/00 - Machine learning

Abstract

A monitoring method of dissolved greenhouse gases in wastewater includes: S1, collecting a wastewater sample, performing mud-water separation, and collecting a supernatant after the mud-water separation; S2, adding dilute sulfuric acid solution to the supernatant collected in a headspace vial to adjust pH of the supernatant to 1-4, and then tightening a cap of the headspace vial; S3, inverting the headspace vial, and checking whether there are air bubbles in the headspace vial; S4, injecting 5-10 mL of pure nitrogen into the headspace vial through a syringe, and discharging 5-10 mL of the wastewater sample through a conduit; S5, placing the headspace vial in a water bath constant temperature shaker, and shaking the headspace vial for 20-30 minutes; S6, extracting gases from an upper part of the headspace vial, and measuring concentrations of the gases; S7, quantitatively calculating concentrations of the dissolved greenhouse gases in the wastewater sample.

IPC Classes  ?

• G01N 30/06 - Preparation
• G01N 30/84 - Preparation of the fraction to be distributed
• G01N 30/02 - Column chromatography
• G01N 33/18 - Water

Abstract

The present invention relates to a positioning and inspection control method for a multi-sensor-fusion pipeline unmanned aerial vehicle. The method comprises: acquiring a video stream image frame of real-time pipeline inspection by means of a binocular camera; determining the darkness degree of the image frame, and if the image frame does not meet a brightness requirement, performing real-time low-light enhancement on the image frame; determining the blur degree of the image frame, and if the image is blurry, performing real-time deblurring processing on the image frame; performing pose calculation on the image frame; and outputting positioning data and pose data of an unmanned aerial vehicle at a real-time location point, and a pipeline inspection image. The present invention realizes safe and effective positioning of an unmanned aerial vehicle in a dark environment where a GPS signal is lost, and realizes safe and normal inspection of the unmanned aerial vehicle in environments such as drainage channels and pipelines on the basis of the positioning of the unmanned aerial vehicle.

IPC Classes  ?

• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G06V 10/141 - Control of illumination
• G06V 10/24 - Aligning, centring, orientation detection or correction of the image
• G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries
• G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
• G06T 5/73 - DeblurringSharpening
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Abstract

A method and apparatus for evaluating vulnerability of monopile foundations of offshore wind turbines are provided. The method includes collecting offshore wind farm location data and wind-wave characteristic data, and simulating a wind-wave time course according to the offshore wind farm location data and the wind-wave characteristic data; determining a wind-wave dynamic load based on the wind-wave course; obtaining lateral soil resistance data of monopile foundations with a plurality of rock-soil strength parameters, and inputting the wind-wave dynamic load into a 3D finite element model; using the lateral soil resistance data of monopile foundations with a plurality of rock-soil strength parameters as boundary conditions of the 3D finite element model; and giving a limit state of monopile foundations, and determining vulnerability of monopile foundations on basis of the dynamic response result of the monopile foundations and the limit state of monopile foundations.

IPC Classes  ?

• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
• G06F 113/06 - Wind turbines or wind farms
• G06F 119/02 - Reliability analysis or reliability optimisationFailure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]

Abstract

11322 of the cast-in-place compression-zone concrete (12) is not less than 100 mm; and a steel bar cage is provided in the U-shaped recycled concrete composite beam to serve as a framework. Compared with the prior art, the fire-resistant characteristic of recycled concrete and the excellent mechanical properties of high-strength concrete are fully exerted, the flexural bearing capacity and ductility of the recycled concrete beam can be effectively improved at room temperature, the bursting phenomenon of a fire-exposed surface is reduced at a high temperature, and the temperature field in the beam is significantly reduced.

IPC Classes  ?

• E04C 3/20 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of concrete or other stone-like material, e.g. with reinforcements or tensioning members
• E04G 21/00 - Preparing, conveying, or working-up building materials or building elements in situOther devices or measures for constructional work

Abstract

A method for in-situ efficient enrichment of anaerobic ammonia oxidation bacteria, comprising: using anaerobic digestion sludge as inoculation sludge and using nitrate wastewater as an influent substrate, the inoculation sludge and the influent substrate reacting with each other under a light-proof, constant-temperature and closed condition so as to enrich anaerobic ammonia oxidation bacteria. After the anaerobic ammonia oxidation bacteria are enriched about 30 days by using the anaerobic digestion sludge as the inoculation sludge and the nitrate wastewater as the influent substrate, the number of functional genes HzsB of the anaerobic ammonia oxidation bacteria is increased by about 100 times than that in a control group (using a liquid mixture of ammonia nitrogen and nitrite nitrogen as an influent substrate). Thus, on one hand, there is no need to add extra ammonia nitrogen and nitrite nitrogen, and on the other hand, there is no need to regulate and control complex process parameters. Therefore, in-situ rapid and sustainable enrichment of anaerobic ammonia oxidation bacteria can be implemented in wastewater treatment plants simply by means of an economical and simple operation mode.

IPC Classes  ?

• C02F 3/28 - Anaerobic digestion processes

Abstract

The present invention relates to a displacement-amplification-type self-resetting friction damper. The axial deformation of the damper is converted into the rotation of a friction disc by means of gear transmission, and a friction device creates friction on the edge of the friction disc, thereby amplifying the displacement, so as to reduce the requirement for a friction force, and the service life of friction parts is thus prolonged. Moreover, by means of gear transmission, the friction force provided by the friction device can be increased with the increase of relative displacement, so that proper energy dissipation capacities can be provided under different working conditions. In addition, the device can automatically return to an initial state by means of a disc spring, and same provides a certain self-resetting capacity for the structure, thereby being conducive to reducing the residual deformation of the structure in severe earthquakes. Compared with the prior art, the present invention has a good energy dissipation effect, and is suitable for vibration control of an engineering structure; the structure is stable and reliable, and is not influenced by the environment; materials are saved on, and the consumption of friction plates is reduced; and the maintenance is easy, and the whole device does not need to be disassembled.

IPC Classes  ?

• E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
• E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground

Abstract

The present invention provides an electrolyte having a cement-based structure and a preparation method therefor. Raw materials for the electrolyte having the cement-based structure include an inorganic gel material, a polymer monomer, polyacrylic acid, an initiator, and modified aluminosilicate zeolite, wherein the modified aluminosilicate zeolite is prepared by soaking aluminosilicate zeolite in a solution of a silicone-modified polyacrylate containing OH functional groups, taking out the aluminosilicate zeolite, performing heat treatment, and then soaking the aluminosilicate zeolite in a lithium salt solution, wherein the polymer monomer is a mixture of acrylamide and a long-carbon-chain alkyl acrylate hydrophobic monomer. In the present invention, by means of a synergistic hydrophobic effect of the modified aluminosilicate zeolite and a multi-component-copolymerized modified polyacrylamide, the dispersion of the polymer network in a cement paste is promoted, facilitating the formation of a uniformly distributed polymer network and the improvement of the ionic conductivity of the electrolyte; in addition, the modified aluminosilicate zeolite adsorbs a certain amount of a lithium salt, thereby contributing to the improvement of a discharge window of the electrolyte having the cement-based structure.

IPC Classes  ?

• C04B 28/04 - Portland cements
• C04B 14/04 - Silica-rich materialsSilicates
• C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 24/16 - Sulfur-containing compounds
• H01G 11/56 - Solid electrolytes, e.g. gelsAdditives therein
• H01G 11/84 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof
• C04B 111/94 - Electrically conducting materials

Abstract

The present disclosure provides a method for evaluating a geological storage amount of carbon dioxide (CO2) in a fractured-vuggy carbonate reservoir, including: performing image identification on a three-dimensional scanned image of a rock sample to obtain identified rock information; inputting the identified rock information to a computational fluid dynamics-based numerical simulator for constructing a fractured-vuggy rock structure model, and obtaining geometric topological information of the rock sample based on the fractured-vuggy rock structure model; inputting relevant parameters of the rock sample and the geometric topological information to a multi-scale multi-phase flow numerical model for numerical simulation of multi-phase flow migration of CO2 in models of different scales and obtaining a multi-scale numerical simulation result; and calculating a multi-scale CO2 storage efficiency based on the multi-scale numerical simulation result. The present disclosure may effectively evaluate and predict the storage capability of CO2 in fractured-vuggy carbonate rock.

IPC Classes  ?

• E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons
• E21B 43/25 - Methods for stimulating production

Abstract

The present invention relates to a triangular-prism-shaped tuned mass damper suitable for a large-span cantilever structure. The triangular-prism-shaped-shaped tuned mass damper comprises a triangular-prism-shaped box (1), and particle damping units (4) and a steel mass block (3), which are arranged in the triangular-prism-shaped box (1), wherein a high damping spring (2) is provided below the triangular-prism-shaped box (1); and each particle damping unit (4) comprises a particle damping chamber (5), three different sizes of particle balls, and a foam rubber pad (9). When the vibration amplitude of the structure is relatively small, the particle balls dissipate energy by means of pressing the foam rubber pads and rolling; and when the vibration amplitude of the structure is relatively large, the particle balls dissipate energy by means of colliding and pressing foam rubber. Compared with the prior art, the present invention realizes a phased energy dissipation mechanism, and also solves the problems of a narrow vibration reduction frequency band, a large motion stroke and noise generated by the particle collision of a traditional mass tuned damper.

IPC Classes  ?

• E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
• E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground

Abstract

The present invention belongs to the technical field of biology, and particularly relates to a method for testing protein-DNA interactions on the basis of a deaminase.

IPC Classes  ?

• C12Q 1/34 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving hydrolase

Abstract

The present invention belongs to the field of biotechnology. Provided is a method for detecting chromatin accessibility or DNA-binding protein footprints in cells. Specifically, provided is a method for converting chromatin accessibility information into mutation information of a DNA sequence on the basis of the deamination effect of a DNA deaminase on a DNA in an chromatin accessibility region, thereby quantitatively determining the chromatin accessibility and the binding footprints of a DNA-binding protein such as a transcription factor on the single DNA molecule level. In addition, further provided is a method for detecting DNA-binding protein footprints in an accessibility region of a cell genome on the basis of a deaminase and a transposase, which method can enrich the chromatin accessibility region in a cell genome and detect DNA-binding protein footprints in the chromatin accessibility region.

IPC Classes  ?

• C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
• C12Q 1/6869 - Methods for sequencing

Abstract

Provided in the present invention is a self-centering shear-resistant device with low prestress requirements for unidirectional-fixture force transmission, the self-centering shear-resistant device comprising a replaceable energy-dissipation system, a self-centering prestress system, and a support and transmission mechanism configured for connection to the outside and energy input, wherein the energy-dissipation system, the self-centering prestress system and the support and transmission mechanism form an integrated unit, and the support and transmission mechanism is connected to the outside to introduce energy. When the device is subjected to shear deformation, the energy-dissipation system is subjected to tensile yielding deformation, and at the same time, the self-centering prestress system is subjected to compressive deformation; and resetting is completed by means of restoring force generated by compressive deformation of the self-centering prestress system during loading. The present invention does not require finish machining of members with a low manufacturing cost and stable and reliable performance. The problems of high-level prestress requirements and limited deformation capacity in self-centering energy-dissipating devices are solved, and fully self-centering of the device can be achieved only by applying a small amount of prestress. The energy-dissipation element of the device is arranged on the periphery and can be replaced after an earthquake without disassembling the whole device and the device can be replaced, thereby facilitating rapid repair of the device.

IPC Classes  ?

• E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
• E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground

Abstract

The present invention relates to a low-prestressed green fabricated self-resetting wall, comprising a hinged wall, a hinged column, a horizontal force transmission key of a steel sliding groove, a self-reset anti-shearing device with a low-prestress requirement, and a concrete base, wherein the hinged wall and the hinged column are fixed to the concrete base, and the self-reset anti-shearing device with the low-prestress requirement and the horizontal force transmission key of the steel sliding groove are arranged in a staggered manner to connect to the bottom hinged wall and the hinged column. The self-reset anti-shearing device with the low-prestress requirement is arranged between different floors, and the horizontal force transmission key of the steel sliding groove is arranged at floor height. Under an earthquake load, the hinged wall and the hinged column rotate around respective explicit hinged supports under the action of a lateral force. In this case, the horizontal force transmission key of the steel sliding groove only controls the coordinated rotations of the bottom hinged wall and the hinged column, and the self-reset anti-shearing device with the low-prestress requirement not only controls the coordinated rotations of the bottom hinged wall and the bottom hinged column, but also dissipates inputted energy and realizes self-resetting of a structure.

IPC Classes  ?

• E04B 2/00 - Walls, e.g. partitions, for buildingsWall construction with regard to insulationConnections specially adapted to walls
• E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
• E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground

Abstract

Disclosed is a method for improving alkaline soil and enhancing carbon capture using a sludge stabilization product. The method includes the following steps: subjecting sludge to aerobic composting to obtain a stabilized product A; subjecting one part of the stabilized product A to extraction to obtain humus B; subjecting the other part of the stabilized product A to hydrothermal extraction to obtain a soluble organic matter rich in amino acids and organic salts, and conducting evaporation to dryness to obtain a mixture C; subjecting a residue obtained during the extraction of the humus B and the mixture C to pyrolysis to obtain biochar D rich in metal oxides; mixing the stabilized product A, the humus B, the mixture C, and the biochar D fully to obtain a soil amendment E; and applying the soil amendment E to a surface layer of alkaline soil, and then cultivating a plant.

IPC Classes  ?

• C09K 17/50 - Organic compounds mixed with inorganic active ingredients, e.g. polymerisation catalysts the organic compound being of natural origin, e.g. cellulose derivatives

Abstract

Disclosed in the present invention are an AnDMBR dynamic membrane assembly based on electrode polarity conversion, and a control method. Specifically, in the present invention, flat-sheet membranes and conductive titanium meshes are combined and are then connected to a power source; and by means of an electrode polarity conversion method, the formation of a dynamic membrane layer is accelerated at a starting stage by using the characteristic of charges of opposite polarities attracting each other, and when the dynamic membrane layer is excessively thick, a sludge cake layer is peeled off by using the characteristic of charges of the same polarity repelling each other, so as to alleviate membrane fouling, thereby achieving effective control over membrane fouling, and ensuring the long-term and stable operation of a reactor.

IPC Classes  ?

• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• B01D 63/08 - Flat membrane modules
• B01D 65/00 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
• B01D 65/02 - Membrane cleaning or sterilisation
• C02F 3/28 - Anaerobic digestion processes

Abstract

Mechano-chemical wastewater treatment equipment to treat wastewater containing heavy metals to form drainage. An intermediate sewage tank has a sewage inlet and a sewage outlet, and stores wastewater to be treated and sewage formed during the treatment process. At least one mechano-chemical reactor conducts the mechano-chemical reaction between the wastewater and zero-valent iron nanoparticles through a ball milling treatment. A separator to separate a slurry produced by the reactor into solids and liquids. The separator has a slurry inlet, a liquid outlet, and a sludge outlet. The reactor is a ball milling device having a reactor shell with a reaction chamber internally formed, a feeding inlet for the slurry to enter the reaction chamber and a discharge outlet for the slurry to flow out of the reaction chamber. A rotor is set inside the reaction chamber and a driving mechanism rotates the rotor.

IPC Classes  ?

• C02F 1/70 - Treatment of water, waste water, or sewage by reduction
• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• C02F 1/62 - Heavy metal compounds
• B01J 8/20 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles with liquid as a fluidising medium
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 101/20 - Heavy metals or heavy metal compounds

Abstract

A sensitivity testing device and method calibrates the distributed optic-fiber temperature sensing (DOFTS) system for inflow and infiltration (I/I) identification in drainage pipeline. A temperature-adjustable water supply tank is provided with a heating rod and a high-accuracy physical water temperature sensor and is electrically connected with a centralized programmable logic controller (PLC) system; the temperature-adjustable water supply tank is connected with a water inlet of a water pump through a first connecting pipe; a water outlet of the water pump is communicated with a water inlet of an experimental pipeline through a second connecting pipe; and a water outlet of the experimental pipeline is communicated with the temperature-adjustable water supply tank through a third connecting pipe.

IPC Classes  ?

• G01K 15/00 - Testing or calibrating of thermometers
• G01K 11/3206 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering

Abstract

A method for stabilizing heavy metals and antibiotics by coupling slow mineralization of a calcium phosphate liquid precursor with a continuous flow of contaminants is provided. In the method, a mixed solution containing a calcium salt, a phosphate, collagen and a polymer is pumped into a packed column with a wet packing method. To-be-treated sewage is pumped into the packed column, and heavy metals and antibiotics in the to-be-treated sewage are solidified and removed during mineralization of calcium phosphate.

IPC Classes  ?

• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/32 - Impregnating or coating
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
• C02F 1/62 - Heavy metal compounds
• B01J 20/16 - Alumino-silicates
• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• C02F 101/20 - Heavy metals or heavy metal compounds
• C02F 101/30 - Organic compounds

Abstract

The present invention relates to an apparatus and method for measuring acoustic excitation noise in a steam pipeline of a nuclear power plant. Multiple layers of sound absorption materials are arranged at the end in a shielding cavity close to a bottom side, and a flexible attaching mechanism is arranged at an opening of the shielding cavity; during measurement, the flexible attaching mechanism is attached to the outer wall of a steam pipeline of an nuclear power plant; the multiple layers of sound absorption materials isolate noise in an environment outside the shielding cavity; by means of a through hole, a microphone is placed in the shielding cavity for measurement, implementing non-destructive indirect measurement of noise in the steam pipeline of the nuclear power plant from the outside of the steam pipeline, and realizing the advantages of interference prevention and easy installation; the noise isolation of the shielding cavity and the multiple layers of sound absorption materials and the tight attachment of the flexible attaching mechanism on the pipe wall eliminate the impact of field environments on measurement; and the direct attachment of the shielding cavity to the pipe wall solves the problem that measurement cannot be carried out due to a narrow space size, realizing effective noise tests in high-temperature and high-pressure environments.

IPC Classes  ?

• G01H 17/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass

Abstract

A sensitivity testing apparatus and method for fiber-optic distributed temperature sensing in a drainage pipeline. A temperature-adjustable pipeline water supply tank (1) is provided with heating rods (11) and a water temperature sensor (12), which are electrically connected to a flow and water temperature control PLC system (4); the temperature-adjustable pipeline water supply tank (1) is connected to a water input end of a water pump (2), a water output end of the water pump (2) is in communication with a water input end of an experimental pipeline (3), and a water output end of the experimental pipeline (3) is in communication with the temperature-adjustable pipeline water supply tank (1); an inflow and infiltration water storage tank (61) of an external inflow and infiltration simulation system (6) injects a liquid into the experimental pipeline (3) by means of a water tank connection pipe (62) and a shunt pipe (63), so as to simulate an inflow and infiltration scenario in an operating state of the drainage pipeline; experimental pipeline water temperature sensors (31) perform spot-like temperature collection on the experimental pipeline (3); and a fiber-optic temperature sensing apparatus (5) performs linear temperature collection along the interior of the experimental pipeline (3), so as to detect and calibrate fiber-optic temperature sensing data, identify noise of a fiber-optic device in the drainage pipeline, and determine the detection sensitivity of the fiber-optic device.

IPC Classes  ?

• G01K 15/00 - Testing or calibrating of thermometers

Abstract

The present disclosure relates to a layered bimetallic hydroxide-based hydrogel bipolar membrane and a method for preparing the same. The method includes: blade-coating a quaternized polyethersulfone solution on a substrate, and carrying out drying to obtain an anion exchange layer; immersing the layer sequentially and cyclically in a sodium alginate solution and a first metal ion mixed solution to obtain a hydrogel anion exchange membrane; immersing the hydrogel membrane sequentially in a second metal ion mixed solution and an alkaline solution; and blade-coating a sulfonated polyethersulfone solution on the obtained membrane, and carrying out drying to obtain the layered bimetallic hydroxide-based hydrogel bipolar membrane. The anion and cation exchange membrane layers on two sides of the bipolar membrane prepared in the present disclosure are closely bound by way of hydrogel cross-linking. The bipolar membrane has the advantages of high water dissociation efficiency, low energy consumption, and good stability.

IPC Classes  ?

• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 61/44 - Ion-selective electrodialysis
• 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
• B01D 71/68 - PolysulfonesPolyethersulfones
• C08J 5/22 - Films, membranes or diaphragms

Abstract

A use of a triazoloquinoline derivative or a pharmaceutically acceptable salt or hydrate thereof in inhibiting the expression of an invasive gene PfAP2-O5, blocking the invasion of plasmodium falciparum into red blood cells, affecting the growth and development of plasmodium falciparum, and killing plasmodium falciparum. A pharmaceutical composition comprising the triazoloquinoline derivative can also comprise an artemisinin compound.

IPC Classes  ?

• A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
• A61K 31/357 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
• A61P 33/06 - Antimalarials

Abstract

A method for constructing a structural semantic map under an underground weak-light and low-texture environment is provided. The method includes: fusing traditional methods with a parameter line detection and verification model of structural semantics of a Transformer; and establishing a geometric primitive half-plane search method guided by the direction of structural information. The method also includes establishing a neighborhood greedy expansion algorithm based on a geometric primitive model; and optimizing geometric primitive poses and boundaries one by one. The method further includes fusing a point cloud map with structural information, and establishing a semantic map with geometric structure primitives.

IPC Classes  ?

• G06T 17/00 - 3D modelling for computer graphics
• G06T 5/20 - Image enhancement or restoration using local operators
• G06T 5/70 - DenoisingSmoothing
• 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

Abstract

Method and device for treating coking wastewater through denitrification and anammox are provided. The device includes an anaerobic reactor, an anoxic reactor, a sedimentation tank, and an aerobic reactor sequentially communicated, and a coking wastewater tank communicated with the anaerobic reactor through an influent pump. The present disclosure promotes the formation of microgranular sludge in the device through a composite powder carrier, and promotes sulfur-based autotrophic denitrification in anaerobic and anoxic zones through pyrite in the composite powder carrier and an additional sulfur source, and promotes anammox in the anaerobic zone through NO2−—N produced by sulfur-based autotrophic denitrification in the anoxic zone. The present disclosure forms a dual-sludge system through the sedimentation tank to reduce reducing inorganic sulfur-containing substances that compete with nitrifying bacteria, and achieves nitrification in the aerobic zone while oxidizing ionic reducing inorganic sulfur-containing substances. The present disclosure discharges treated wastewater through a membrane component.

IPC Classes  ?

• C02F 3/30 - Aerobic and anaerobic processes
• C02F 101/16 - Nitrogen compounds, e.g. ammonia

Abstract

A gas-solid reactor capable of online enhancement of the reaction activity of solid. The gas-solid reactor comprises an inner reactor cylinder (10), which is divided into an activation section (11) and a reaction section (12), wherein a solid particle feeding device (20), a reaction gas feeding device (30) and a high-temperature airflow feeding device (40) are connected to the activation section (11); and a gas product output device (50), a heat supply system (60) and a solid particle discharging device (70) are connected to the reaction section (12). Solid particles fed into the activation section (11) come into contact with a high-temperature airflow fed from the bottom first and are activated, thus improving the reaction activity; then, the solid particles come into contact with a reaction gas to start a reaction.

IPC Classes  ?

• B01J 8/10 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles

Abstract

The present invention relates to the technical field of construction engineering, and specifically to configurations and close-fitting joints for a second-order scissor damper and an assembly method for the same. There six parts in total, including first hinge joints, a first-order shuttle-shaped linkage mechanical component, second hinge joints, a second-order shuttle-shaped linkage mechanical component, third hinge joints, and a viscous damper; the second-order shuttle-shaped linkage mechanical component includes four small connecting rods of equal length and it is formed by hinging them together. The device of the present invention can constrain the joints, release the bending constraints on the ends of the rods, and enable a significant increase in the stroke amplification of the conventional scissor damper.

IPC Classes  ?

• E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
• E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids

Abstract

The novel use of a hexahydroquinoline derivative or a pharmaceutically acceptable salt or hydrate thereof. The hexahydroquinoline derivative can inhibit the expression of the invasive gene PfAP2-O5, and block invasion of Plasmodium falciparum into red blood cells which affects the growth and development of said cells, thus achieving the effect of killing Plasmodium falciparum. Therefore, the hexahydroquinoline derivative can be used as an inhibitor of PfAP2-O5, a medicine for inhibiting Plasmodium falciparum or a medicine for preventing or treating malaria.

IPC Classes  ?

• A61K 31/47 - QuinolinesIsoquinolines
• A61K 31/357 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
• A61P 33/06 - Antimalarials

Abstract

A multi-mode magnetic treatment device combining a permanent magnetic field and an electromagnetic field includes a base, a sample stand, an electromagnetic mechanism, a permanent magnetic mechanism, a permanent magnetic mechanism motion drive unit, a sample stand ascent-descent drive unit and a control system. The sample stand, the electromagnetic mechanism and the permanent magnetic mechanism are mounted on the base. The electromagnetic mechanism and the permanent magnetic mechanism are connected to the control system. The permanent magnetic mechanism is mounted on the base through the permanent magnetic mechanism motion drive unit. The sample stand is mounted on the base through the sample stand ascent-descent drive unit. A magnetic field of the electromagnetic mechanism and a magnetic field of the permanent magnetic mechanism respectively act on the sample stand to apply a rotational permanent magnetic force and an alternating electromagnetic force to a sample.

IPC Classes  ?

• C12M 1/06 - Apparatus for enzymology or microbiology with gas introduction means with agitator, e.g. impeller
• C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters

Abstract

Disclosed in the present invention is a method for directly measuring the concentration of a high-concentration target species in a flowing liquid. The method comprises the steps of: measuring a qualitative optical path and a quantitative optical path of a target species, and constructing a wavelength-concentration model and an algorithm, wherein a luminosity signal and the concentration of the target species in a liquid can be measured in real time in wavelength regions of ultraviolet visible light and near-infrared light. During operation, a liquid flows through a device; according to a qualitative optical path, the type of a target species is determined; according to a quantitative optical path, a rational high absorbance is maintained, and the wavelength of the liquid is measured; and the concentration of the target species is thus calculated, such that the original valence state, original form, original phase state and concentration of a high-concentration target species in a flowing liquid are measured within 10 seconds without adding a chemical agent or diluting a solution.

IPC Classes  ?

• G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
• G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
• G01N 21/33 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light

Abstract

Application methods of a nano layered double include: applying the nano layered double hydroxide in promoting chondrogenic differentiation of human umbilical cord-derived mesenchymal stem cells, and applying the nano layered double hydroxide in preparing drugs for promoting cartilage regeneration, promoting intervertebral disc repair, or treating intervertebral disc degeneration. Compared to human umbilical cord-derived mesenchymal stem cells without an addition of the nano layered double hydroxide, the human umbilical cord-derived mesenchymal stem cells with the addition of the nano layered double hydroxide have a better and faster ability to differentiate into chondrocytes and broad application prospects.

IPC Classes  ?

• A61L 27/04 - Metals or alloys
• A61L 27/38 - Animal cells

Abstract

The present invention belongs to the technical field of membrane-based water treatment and relates to a novel guanidine-based composite nanofiltration (NF) flat-sheet membrane, and a preparation method and application thereof. The present invention provides a method for preparing a guanidine-based composite NF flat-sheet membrane, where a dense separation layer is formed on the surface of a polyethersulfone ultrafiltration membrane through polymerization reaction between the amino group of 1,3-diaminoguanidine and the acyl chloride group of trimesoyl chloride. Under suitable reaction conditions, the guanidine-based composite NF membrane obtained according to the present invention enables effective separation of multivalent ions over a wide pH range, with a rejection rate of over 96% for 1000 ppm of MgSO4 solution, and can operate continuously and stably in a mixed ions solution with a wide pH.

IPC Classes  ?

• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 61/02 - Reverse osmosisHyperfiltration
• 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
• B01D 69/06 - Flat membranes
• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 71/58 - Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
• B01D 71/68 - PolysulfonesPolyethersulfones
• C08J 7/04 - Coating

Abstract

The present disclosure relates to a real-time control method for an additional yaw moment of a distributed drive electric vehicle, including the following steps: acquiring and inputting a real-time motion state of the distributed drive electric vehicle into a vehicle dynamics model, using a yaw rate and a sideslip angle of the distributed drive electric vehicle as tracking targets to suppress actuation energy, and performing optimization calculation on an additional yaw moment to acquire an amount of the additional yaw moment distributed for each tire; and in the optimization calculation process, a linear expression of the sideslip angle with respect to the additional yaw moment and a linear expression of the yaw rate with respect to the additional yaw moment are constructed, so as to perform search calculation on the additional yaw moment.

IPC Classes  ?

• B60W 30/02 - Control of vehicle driving stability

Abstract

It provides methods for treating Alzheimer's disease in a patient in need thereof, comprising a therapeutically effective amount of extracellular vesicles, wherein the extracellular vesicles are isolated from culture medium of cells. In some embodiments, the extracellular vesicles comprise one or more of following miRNAs: let-7, miR-9, miR-21, miR-34a, and miR-10b. It also provides a composition comprising a therapeutically effective amount of extracellular vesicles for treating Alzheimer's disease in a patient in need thereof.

IPC Classes  ?

• A61K 35/00 - Medicinal preparations containing materials or reaction products thereof with undetermined constitution
• A61K 35/28 - Bone marrowHaematopoietic stem cellsMesenchymal stem cells of any origin, e.g. adipose-derived stem cells
• A61K 35/33 - Fibroblasts
• A61K 9/00 - Medicinal preparations characterised by special physical form
• A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia

Abstract

Provided are a granulation-promoting microcarrier for an anaerobic ammonium oxidation (Anammox) process, and a preparation and use method thereof. The granulation-promoting microcarrier for the Anammox process is prepared by mixing a functional component, a regulatory component, and a structural component; wherein the functional component is an iron-based material; the regulatory component is a phase-change material; and the structural component includes a framework material and a foaming agent.

IPC Classes  ?

• C02F 3/28 - Anaerobic digestion processes
• C02F 3/00 - Biological treatment of water, waste water, or sewage
• C02F 3/30 - Aerobic and anaerobic processes
• C02F 101/16 - Nitrogen compounds, e.g. ammonia
• C12M 1/12 - Apparatus for enzymology or microbiology with sterilisation, filtration, or dialysis means

Abstract

An on-line measurement system of an alternating current impedance of a vehicle-mounted fuel cell and a method thereof are disclosed. The system includes an impedance measuring group including an alternating current exciting unit, a current sensor and an impedance inspecting unit; the alternating current exciting unit is configured to apply a multi-frequency composite sine wave excitation signal to a fuel cell stack; the current sensor is arranged on an output trunk of the fuel cell stack and configured to collect an output current of the fuel cell stack or a single fuel cell; the impedance inspecting unit is configured to collect an output voltage of the fuel cell stack or the single fuel cell, calculate a fuel cell impedance according to the output voltage and the output current, and identify a parameter of a pre-constructed fuel cell equivalent circuit model based on the calculated fuel cell impedance.

IPC Classes  ?

• G01R 31/389 - Measuring internal impedance, internal conductance or related variables
• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health

Abstract

A steel-timber composite shear wall with layered steel plates and timber cover plates is provided in the present disclosure, including a rubber layer, with a first thin low yield point (LYP) steel plate and a second thin structural steel plate respectively arranged on both sides of the rubber layer. A first timber cover plate and a second timber cover plate are respectively arranged outside the first thin LYP steel plate and the second thin structural steel plate. The steel plate and the timber cover plate are fixed through self-tapping screws. The grain of the first and second timber cover plates are arranged obliquely, and the oblique angles are determined based on height and width of the timber cover plate. Compared with the prior art, the shear wall has the advantages of environment friendliness, good buckling restraint performance, high lateral stiffness, multi-stage load resisting mechanism, and high prefabrication rate.

IPC Classes  ?

• E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
• B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 15/06 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of rubber
• B32B 15/10 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of wood
• B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
• E04B 2/00 - Walls, e.g. partitions, for buildingsWall construction with regard to insulationConnections specially adapted to walls

Abstract

The present invention relates to an auditing system for a built environment of an age-friendly street based on multisource big data. The auditing system includes: a data acquisition module is configured to acquire urban streetscape image data, urban road network data and urban point-of-interest data; a data classification auditing module is configured to acquire the data of the data acquisition module, classify the image data, and process the image data by using a data processing method to acquire evaluated numerical values of different types of indexes; a data summary analysis module is configured to acquire the evaluated numerical values of the data classification auditing module, calculate sub-item index numerical values of each output unit and calculate result data according to the sub-item index numerical values; a audit result output module is configured to acquire the result data of the data summary analysis module and visualize and output the result data.

IPC Classes  ?

• G06N 3/08 - Learning methods

Abstract

The present disclosure relates to a multi-constraint optimal distribution method for a torque vectoring of a distributed drive electric vehicle, which includes: obtaining a vehicle real-time motion state, taking a pre-constructed tire rotation dynamics model as a control object of an optimal distribution problem, establishing an objective function for tracking a desired additional yaw moment, tracking a desired tire slip ratio, and suppressing a motor output energy consumption to a minimum value, establishing a corresponding system constraint, solving the optimal distribution problem, and obtaining an optimal distribution solution for a torque vectoring of each tire. Compared with the prior art, the present disclosure can effectively track a desired control target, can also effectively constrain an important state and a control input of the vehicle, and can avoid wrong solutions or no solution caused by an optimization problem.

IPC Classes  ?

• B60L 3/10 - Indicating wheel slip
• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed

Abstract

The present invention provides a geotechnical centrifuge platform-based earthquake fault simulation system, involving the field of earthquake disaster simulation technology. A bottom support system of the geotechnical centrifuge platform-based earthquake fault simulation system is used to support a horizontal actuation system and simulate earthquake faults and site covering layers. The horizontal actuation system is used to apply horizontal thrusts to simulated earthquake faults and site covering layers. The simulated earthquake faults are used to fill fault test blocks to simulate bedrock layers of earthquake faults and the site covering layers are used to fill sand layer materials onto surfaces of the simulated earthquake faults to simulate soil layers of the earthquake faults.

IPC Classes  ?

• G01M 7/02 - Vibration-testing

Abstract

Isolated direct DC/DC converter topology structure for fuel cell system includes: Boost converter topology structure and bidirectional full-bridge converter topology structure connected in sequence. Input of the Boost converter topology structure is connected to fuel cell, and output of the Boost converter topology structure is connected to other key components of the fuel cell system and input of the bidirectional full-bridge converter topology structure. Output of the bidirectional full-bridge converter topology structure is connected to power cell. Usage of the Boost converter topology structure and usage of the bidirectional full-bridge converter topology structure change under different operating states of the fuel cell system. Based on insulation performance and high efficiency of the fuel cell system, the usage of the Boost converter topology structure and the usage of the bidirectional full-bridge converter topology structure change. Low efficiency caused by DC/DC converter with single isolated topology structure is effectively overcome.

IPC Classes  ?

• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/32 - Means for protecting converters other than by automatic disconnection
• H02M 1/36 - Means for starting or stopping converters

Abstract

The present invention provides a real-time path planning method taking into account dynamic properties of vehicles; the method includes a calculation without connecting to internet of a reachable set and an online path planning; in the calculation without connecting to internet of the reachable set, all vehicle safety states are traversed by means of the vehicle model and the wheel model, thereby predicting the position set capable of being reached by the vehicle at a next moment; in the online path planning, by means of calculating the position set capable of being reached by the vehicle at the next moment with connecting to internet, non-linear dynamic constraints are provided for the exploration of the artificial potential field method, achieving the purpose of real-time planning while taking into account dynamic properties of the vehicles.

IPC Classes  ?

• B62D 15/02 - Steering position indicators
• B60W 40/105 - Speed

Abstract

Disclosed is a decision-making and planning integrated method for a nonconservative intelligent vehicle in a complex heterogeneous environment, including the following steps: offline establishing and training a social interaction knowledge learning model; obtaining state data of the traffic participants and state data of an intelligent vehicle online in real time, and splicing the state data to obtain an environmental state; using the environmental state as an input to the trained social interaction knowledge learning model to obtain predicted trajectories of all traffic participants including the nonconservative intelligent vehicle; updating the environmental state based on the predicted trajectories; and inputting the updated environmental state to the social interaction knowledge learning model to complete trajectory decision-making and planning for the nonconservative intelligent vehicle by iteration, where a planned trajectory of the nonconservative intelligent vehicle is a splicing result of a first point of a predicted trajectory obtained by each iteration.

IPC Classes  ?

• B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
• B60W 40/04 - Traffic conditions
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
• G06N 3/04 - Architecture, e.g. interconnection topology

Abstract

Disclosed is a method for predicting a trajectory of a traffic participant in a complex heterogeneous environment, including the following steps: obtaining traffic participant information in a complex heterogeneous environment; arranging and numbering traffic participant classes based on the class information, to obtain serial numbers of the traffic participant classes; establishing a position graph, a velocity graph, an acceleration graph, and a class graph, into each of which expert experience is introduced; and capturing topological structure relationships and time dependence relationships to obtain a position hidden state, a velocity hidden state, an acceleration hidden state, and a class hidden state; classifying the position hidden state, the velocity hidden state, the acceleration hidden state, and the class hidden state to obtain a hidden state set of traffic participants; and decoding hidden states of the traffic participants separately using a corresponding decoder to obtain future trajectory predictions of the traffic participants.

IPC Classes  ?

• G08G 1/01 - Detecting movement of traffic to be counted or controlled
• B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
• G08G 1/015 - Detecting movement of traffic to be counted or controlled with provision for distinguishing between motor cars and cycles

Abstract

Disclosed is a sound absorption and load bearing integrated structure and a preparation method thereof. The sound absorption and load bearing integrated structure comprises of a first connecting node and a holed hollow rod connected to the first connecting node. The first connecting node is of a solid structure, and the connecting portion of the first connecting node and the holed hollow rod is in smooth transition by means of a cambered surface. The first connecting node and the holed hollow rod form a sound absorption unit. The holed hollow rod of one sound absorption unit extends forwards from an axial direction of the first connecting node, and extends to be connected to a first connecting node of another sound absorption unit, or extends to be intersected with a holed hollow rod of another sound absorption unit so as to form a second connecting node.

IPC Classes  ?

• B60R 13/08 - Insulating elements, e.g. for sound insulation
• G10K 11/172 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects

Abstract

A vehicle state estimation method based on adaptive total variation denoising (TVD) filtering includes the following steps: step 1: collection and preprocessing of an original signal of a vehicle; step 2: noise level evaluation, step 3: Teager-Kaiser energy evaluation; step 4: optimization problem construction; and step 5: application of a filtered signal in the step 4 in the estimation of a vehicle state. The vehicle state estimation method is mainly based on the global noise level characteristic and the local intensity change characteristic of the vehicle system state data, and adaptive filtering of parameters is achieved by means of a TVD filtering method. The signal is denoised to the maximum extent, peak information of the signal is retained while the data smoothness is maintained, and then the signal is used for vehicle state estimation, working condition identification and the like.

IPC Classes  ?

• G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

Abstract

A device and method for collecting inert particles in a catering waste slurry, specifically a device and method for collecting inert particles in a slurry by using the Venturi effect. The method comprises the steps such as the use of the inert particle collection device based on the Venturi effect, a tube flow velocity cloud chart drawing method, and an inert particle concentration counting method. The optimal arrangement scheme of an inert particle collector is determined by means of a method for measuring the flow velocity of a target catering waste slurry, the concentration of an inert substance in the slurry, and the density of particles. The device for collecting inert particles in a catering waste slurry comprises an inert particle settling device, a particle storage device, and a connecting part located between the devices. Simulation and on-site debugging are carried out according to the slurry flowing working condition and the inert substance content so as to achieve the objective of stably recovering the inert particles in the catering waste slurry, and feedback and adjustment are carried out according to the condition of each inert substance recovery, so as to obtain a stable recovery period, thereby finally realizing sustainable and stable recovery of the inert particles in the catering waste slurry.

IPC Classes  ?

• B01D 36/04 - Combinations of filters with settling tanks

Abstract

Disclosed is a steering wheel torque feedback optimization control method for a differential braking system, including: estimating a tire lateral force of a vehicle; predicting a state of the vehicle at a next moment under a non-differential torque condition; predicting a state of the vehicle at the next moment under a differential torque condition with an additional yaw moment; calculating tire lateral forces at the next moment under the differential torque condition and the non-differential torque condition separately based on the predicted states of the vehicle at the next moment under the differential torque condition and the non-differential torque condition, and obtaining a predicted one-step change value of a front tire lateral force by performing subtraction; performing integral calculation based on time, and obtaining a continuous change amount of the tire lateral force; and correcting a desired moment of a steering power motor.

IPC Classes  ?

• B62D 6/00 - Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
• B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
• B60W 40/114 - Yaw movement
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
• B62D 5/00 - Power-assisted or power-driven steering

Abstract

A coordinated control method for electric vehicles having independent four-wheel driving and steering, comprising the steps of: calculating to obtain a desired value of yaw velocity according to the steering angle and the current vehicle driving speed, and limiting the desired value of yaw velocity according to the current road adhesion condition; constructing an optimization problem according to the current vehicle motion state and the desired value of yaw velocity, and solving the optimization problem to obtain a desired active rear wheel steering angle control variable and a desired additional yaw moment control variable; calculating to obtain an additional torque of each wheel according to a desired additional yaw moment control variable, obtaining a desired active rear wheel steering angle, and sending the additional torque of each wheel and the desired active rear wheel steering angle to an executor of the vehicle for performing a coordinated control.

IPC Classes  ?

• B60W 30/02 - Control of vehicle driving stability
• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
• B60W 10/119 - Conjoint control of vehicle sub-units of different type or different function including control of all-wheel-driveline-means, e.g. transfer gears or clutches for dividing torque between front and rear axles
• B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
• B60W 40/114 - Yaw movement

Abstract

A small nucleic acid having functions similar to that of miR-146a or pharmaceutically acceptable salts thereof, and the use of said small nucleic acid or pharmaceutically acceptable salts thereof in preparation of drugs used for treating enteritis, inflammatory bowel diseases, inflammation, obesity and obesity related diseases, or drugs used for relieving pain.

IPC Classes  ?

• C12N 15/113 - Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides
• A61K 31/7105 - Natural ribonucleic acids, i.e. containing only riboses attached to adenine, guanine, cytosine or uracil and having 3'-5' phosphodiester links
• A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system
• A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
• A61P 3/04 - AnorexiantsAntiobesity agents

Abstract

The present invention relates to a fast anti-money laundering detection method based on a transaction graph, comprising: obtaining transaction data flows and constructing a directed graph structure to form a transaction graph; performing preliminary determination on the transaction graph, wherein if hit, the transaction is blocked, otherwise the transaction graph is sent to a graph neural network based on location information; performing feature learning according to a transaction feature of each node and aggregating a node feature and a full graph feature; performing prediction on a transaction between nodes according to the features, wherein if there is a high risk, an expert estimation is performed and the transaction is sent to a historical transaction database, and if there is a low risk, a transaction result is recorded and sent to the historical transaction database; and updating the network by the historical transaction database according to the transaction result.

IPC Classes  ?

• G06Q 20/40 - Authorisation, e.g. identification of payer or payee, verification of customer or shop credentialsReview and approval of payers, e.g. check of credit lines or negative lists
• G06N 3/048 - Activation functions
• G06N 3/08 - Learning methods

Abstract

Disclosed are a polymer-modified magnetic nanomaterial (polymer-modified MNM), and a preparation method and use thereof. Provided is the polymer-modified magnetic nanomaterial, including the following structure: a polymer is attached to or coated on a surface of a magnetic nanomaterial (MNM) to form the polymer-modified MNM that is positively charged, wherein the polymer is a cationic polymer, the MNM has a core-shell structure, a core is a magnetic nanoparticle (MNP), and a shell is a modified layer and the modified layer is attached to or coated on a surface of the MNP to form a modified layer-compounded MNP; and a mass ratio of the polymer to the MNM in the polymer-modified MNM is in a range of 1:10 to 20:1.

IPC Classes  ?

• A61K 49/00 - Preparations for testing in vivo
• C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials

Abstract

The present disclosure provides a multi-view collaborative tracking method and apparatus for a fast moving target under a low luminance condition, including a multi-view target tracking algorithm based on radar-vision fusion data and an unmanned aerial vehicle (UAV) cluster collaborative tracking technology. This method takes the spatiotemporal normalized multi-source data as the learning objective of multi-agent reinforcement learning, to drive the cluster to collect data from multiple angles and directions. In this way, highly-efficient multi-angle collaborative observation can be performed on a high-speed moving object in an environment of weak texture and low luminance.

IPC Classes  ?

• G06T 7/20 - Analysis of motion
• G06T 5/70 - DenoisingSmoothing
• G06T 7/70 - Determining position or orientation of objects or cameras
• 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
• G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
• G06V 10/771 - Feature selection, e.g. selecting representative features from a multi-dimensional feature space
• H04N 13/351 - Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for displaying simultaneously

Abstract

The present disclosure relates to a method and system for pavement structural performance evaluation based on long-range laser vibration measurement. The method can more accurately evaluate the structural performance of the pavement by detecting the actual deflection value of the pavement during aircraft operation; By obtaining real-time deflection data of the airport runway, it is possible to detect changes in the structural performance of the airport runway in the long term without affecting the normal operation of the airport runway. The present invention has strong anti-interference ability, stable detection results, and can achieve non-contact, large-scale, and high-precision measurement of airport pavement deflection.

IPC Classes  ?

• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
• G08G 5/00 - Traffic control systems for aircraft

Abstract

The present disclosure discloses a method for preparing a sludge conditioner from water supply sludge and a use of the sludge conditioner. The sludge conditioner is prepared by mixing the water supply sludge and sewage sludge. The method includes the following steps: mixing the water supply sludge and the sewage sludge in proportion, adding a pore forming agent, stirring a mixture uniformly, and conducting mechanical dehydration, air-drying, grinding, sieving, and pyrolysis to obtain the sludge conditioner. The conditioner is used in advanced oxidation technologies such as catalyzed/activated ozone oxidation, persulfate oxidation, and Fenton oxidation to condition the sludge and enhance dehydration performance. The sludge carbon-based conditioner with efficient catalytic performance and adsorption performance is prepared from the sludge of a water supply plant and a sewage plant, and a chemical conditioning technology of advanced oxidation is coupled for improving the dehydration performance of sludge and adsorbing heavy metals.

IPC Classes  ?

• C02F 11/143 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
• C02F 11/00 - Treatment of sludgeDevices therefor
• C02F 11/06 - Treatment of sludgeDevices therefor by oxidation
• C02F 11/121 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering
• C02F 11/13 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by heating

Abstract

The present disclosure discloses a four-dimensional spatio-temporal structure aggregation platform for metaverse information, and relates to the technical field of search engine design. According to the present disclosure, based on original geographic coordinates of the earth, a time axis perpendicular to a ground and pointing to a center of the earth is constructed, and light spots are used for mapping an information website portal, so that an objective of expressing a four-dimensional information spatio-temporal structure by using a three-dimensional space is achieved, thereby improving rationality of information classification while improving an information aggregation degree and search efficiency.

IPC Classes  ?

• G06T 17/05 - Geographic models
• G06F 3/04815 - Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
• G06F 16/28 - Databases characterised by their database models, e.g. relational or object models
• G06F 16/9537 - Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
• G06T 15/50 - Lighting effects
• G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts

Abstract

The present invention relates to a high-order parity-time (PT) symmetry wireless power transfer (WPT) system and method. The method includes the following steps: providing an N-order composite coil which includes N resonance circuits, where N is an odd number; providing an M-order composite coil which includes M resonance circuits, where M is an even number; connecting a scattering capacitor to end portions of two adjacent resonance circuits; coupling the first resonance circuits in the two composite coils to realize WPT; connecting a load to an alternating current power supply; and adjusting a capacitor in the resonance circuit symmetrical to the two first resonance circuits according to a change in coupling strength caused by a change in coupling distance in a WPT process to obtain an optimal transfer efficiency. According to the present invention, frequency tracking is not required for WPT by utilizing a unique pure real number eigenfrequency which is unrelated to a coupling distance and is represented by odd-order PT symmetry, and a capacitor size is adjusted according to a change in coupling distance to obtain a better transfer efficiency.

IPC Classes  ?

• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Abstract

Disclosed is an intelligent driving test method with corner cases dynamically completed based on human feedback, including the following steps: obtaining an initial state of a real environment; building an original scene driver based on reinforcement learning, and correcting behavior selection to obtain an exploratory behavior; testing in a testing environment, performing expert evaluation, and building a dynamic corner case completion library based on the human feedback; building an imitation learning driver based on the human feedback, updating a policy based on test data in the dynamic corner case completion library, training the imitation learning driver, and outputting a corner case reproduction behavior; obtaining the initial state of the real environment and an initial environmental state of the dynamic corner case completion library, and selecting a scene driver; and outputting a corresponding behavior, and testing in the testing environment based on the corresponding behavior to obtain a test result.

IPC Classes  ?

• 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
• G06F 11/36 - Prevention of errors by analysis, debugging or testing of software
• 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

Abstract

Disclosed are a hydroxyl-terminated polybutadiene-based polyurethane (HTPB-PU)-modified asphalt and a preparation method thereof. In the disclosure, the HTPB-PU-modified asphalt includes the following components in parts by weight: 90 parts to 97 parts of a base asphalt and 3 parts to 10 parts of HTPB-PU, where the HTPB-PU is prepared from raw materials including an isocyanate and a polyol, and the polyol includes hydroxyl-terminated polybutadiene (HTPB) with a weight percentage of not less than 80%.

IPC Classes  ?

• C08G 18/64 - Macromolecular compounds not provided for by groups
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
• C08L 95/00 - Compositions of bituminous materials, e.g. asphalt, tar or pitch

Abstract

A modular wheeled mobile ultrasonic structure detection apparatus is disclosed, including a mobile detection platform, at least one ultrasonic detection roller, at least one ultrasonic sensor, and a steering balance mechanism including a connecting arm and at least one balancing apparatus; the balancing apparatus includes a balancing cylinder hinged to the connecting arm, a balancing spring provided in the balancing cylinder, and a steering linkage hinged to the mobile detection platform, a piston being connected to one end of the steering linkage away from the mobile detection platform and the balancing spring being in contact with the piston; and the piston can move along a length direction of the balancing cylinder and thereby define a direction of the steering linkage. When the structure surface fluctuates, bends, or turns, the mobile detection platform can rotate relative to the connecting arm to change the moving posture to adapt to various complex detection conditions. A mobile carrier can pull the detection apparatus in a moving state to realize the non-contact continuous acquisition of ultrasonic waves between the ultrasonic sensor and the structure surface.

IPC Classes  ?

• G01N 29/06 - Visualisation of the interior, e.g. acoustic microscopy
• G01N 29/24 - Probes

Abstract

The present disclosure provides an ionic gel film preparation method, a chemical sensor and preparation method thereof, relating to the field of sensor technology. The preparation method of ionic gel film includes: blending a vinyl-free ionic liquid with a vinyl-containing ionic liquid and a specified additive to obtain a homogenous solution, taking a predetermined amount of the homogenous solution and dropping it onto a first substrate equipped with interdigital electrodes, flattening the homogenous solution on the first substrate using a second substrate, curing the flattened homogenous solution on the first substrate using ultraviolet light of a preset wavelength, and curing until the vinyl-containing ionic liquid polymerizes in situ to form an ionic gel film. The preparation method of ionic gel film, chemical sensor, and preparation method thereof of the present disclosure have the advantages of good device consistency, high conductivity, and good sensing performance when using the ionic gel film.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance

Abstract

The present invention relates to a pavement anomaly detection method and apparatus based on an inverse depth map, and a storage medium. The method comprises the following steps: acquiring a dense depth map of a pavement on the basis of a binocular stereo matching algorithm or a monocular depth estimation network, and taking the reciprocal of a depth value of each point in the dense depth map to obtain a dense inverse depth map; estimating a roll angle of a depth camera by using coordinates and an inverse depth value of each point in the inverse depth map; estimating parameters of a pavement projection model by using the coordinates and the inverse depth value of each point in the inverse depth map and the roll angle of the depth camera; and transforming the inverse depth map by using the coordinates and the inverse depth value of each point in the inverse depth map, the roll angle of the depth camera, and the parameters of the pavement projection model to obtain a pavement anomaly detection result graph. Compared with the prior art, the present invention has the advantages of high operation efficiency, wide range of application and the like.

IPC Classes  ?

• G06T 7/00 - Image analysis

Abstract

The present disclosure relates to a detection method and system for an underground space by joint use of fixed sensors and unmanned aerial vehicle (UAV) movement detection. The detection system includes underground space sensor nodes and an underground space UAV. The underground space sensor nodes are configured to perform fixed monitoring based on an adaptive optimal layout strategy for an underground structural space. The underground space UAV is configured to calculate a first virtual force, and realize movement detection by means of a virtual force-guided path planning algorithm. The underground space UAV is configured to calculate the first virtual force based on the electronic telescopic anti-collision bars, a second virtual force based on a static perception probability and a third virtual force based on structural evolution knowledge, and realize a fixed node-guided UAV flight detection mode by means of the virtual force-guided path planning algorithm.

IPC Classes  ?

• G08G 5/04 - Anti-collision systems
• B64U 20/30 - Constructional aspects of UAVs for safety, e.g. with frangible components
• G01C 21/20 - Instruments for performing navigational calculations
• G08G 5/00 - Traffic control systems for aircraft

Abstract

The present invention provides a multi-load wireless power transfer system based on high-order Anti-PT symmetry. By introducing a “W-shaped” anti-resonance mode into a basic WPT platform, an effective Anti-PT non-Hermitian system is conveniently constructed. The “level attraction” of the anti-resonance mode is combined with the “level splitting” of the anti-resonance mode and the resonance mode, to study the “level pinning” effect of high-order Anti-PT symmetry. Compared with the traditional resonant WPT, the anti-resonant WPT has higher security, stability, transfer efficiency, and flexibility. Considering the miniaturization and integration of devices, a “meta coil” is designed by using a “synthetic dimension”, and used to construct a high-order Anti-PT symmetric system, thereby achieving multi-load efficient WPT. The new WPT technology based on the “level pinning” effect of high-order Anti-PT symmetry provides a good application research platform for enriching non-Hermitian physics.

IPC Classes  ?

• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power

Abstract

The present invention relates to a system-level health state evaluation method driven by multi-component state fusion, and a device. The method is used for performing health state evaluation on a device system comprising multiple components, and comprises the following steps: collecting a real-time data set, wherein the real-time data set comprises a pre-selected feature parameter used for representing a device state change; pre-processing the real-time data set by components to obtain a sample to be evaluated of each component; on the basis of a pre-acquired normal sample set, calculating the deviation degree of the sample to be evaluated of each component, obtaining the health degree of the corresponding component, and further obtaining a health degree sequence of each component within an evaluation time period; and fusing health degree sequences of the multiple components on the basis of an entropy weight method to obtain the current final comprehensive health degree of the device system. Compared with the prior art, the present invention has the advantages such as accuracy, reliability, and quantification.

IPC Classes  ?

• G06Q 50/04 - Manufacturing
• G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling

Abstract

The present application discloses a method for calibrating a parameter error of an electron probe microanalysis instrument. A one-dimensional grating standard template is prepared based on atom lithography technology. A theoretical grating period D of the one-dimensional grating standard template is calculated. The one-dimensional grating standard template is statically placed on a stage of the electron probe microanalysis instrument. The electron probe microanalysis instrument scans the one-dimensional grating standard template on the stage, performs image acquisition and measurement on a grid distance of the one-dimensional grating standard template to obtain a grating scanning distance measurement value L, and records a magnification ratio at this time. A calibration factor K under the magnification ratio is calculated according to D and L. The present application shortens the length of the traceability chain for calibrating the instrument, reduces the error accumulation in the quantity value dissemination process.

IPC Classes  ?

• G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
• G01N 23/2202 - Preparing specimens therefor
• G01N 23/2252 - Measuring emitted X-rays, e.g. electron probe microanalysis [EPMA]

Abstract

The present disclosure relates to a self-adaptive guided advanced driver assistance system (ADAS) considering a driving skill difference between drivers, including a driving skill classification module, configured to calculate a vehicle stability margin based on a vehicle state, and obtain a corresponding driving skill classification result with the vehicle stability margin and a driver state as inputs of a driving skill classification model; a skill learning range classification module, configured to obtain the vehicle stability margin and a distance between a vehicle and a lane line boundary, and use a skill learning range classification model to obtain a skill learning range classification result; and a self-adaptive guided driving right allocation module, configured to realize driving right allocation control based on the driving skill classification result and the skill learning range classification result, and generate an assisted steering torque acting on a vehicle steering system.

IPC Classes  ?

• B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
• B60W 40/09 - Driving style or behaviour
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
• B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles

Abstract

The present invention relates to a macro plastic and micro plastic detection method based on RGB and hyperspectral image fusion, which includes the following steps: obtaining macro plastics and micro plastics; mixing with solid wastes to obtain a solid-phase substrate; pretreating the obtained solid-phase substrate to obtain a material; drying to remove part of moisture and coating on a quartz window sheet, drying until the moisture is completely removed, and flattening by using another quartz window sheet to obtain a material to be detected; obtaining an RGB image and a hyperspectral image of the material to be detected respectively by using a high-resolution color image scanner and a hyperspectral camera; fusing the obtained RGB image and hyperspectral image; and automatically classifying and identifying the macro plastics and the micro plastics by using a supervised classification model.

IPC Classes  ?

• G01N 21/94 - Investigating contamination, e.g. dust
• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
• G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• G01N 33/44 - ResinsPlasticsRubberLeather

Abstract

The present invention relates to a damage-free engagement device for wind-resistance of base-isolated structures. It includes a rubber seismic isolation support, upper and lower connecting plates, and a wind-resistance stiffness adjuster. The adjuster comprises a horizontal sliding bearing plate, a vertical guide groove, and components within the guide groove. These components include a bird beak plate, a disc spring group, and a stiffness adjustment bolt. The bird beak plate slides along the guide groove and engages with the sliding bearing plate. The invention improves horizontal stiffness while maintaining seismic isolation. It achieves a “wind lock-seismic unlock-wind lock” mechanism without component replacement, reducing maintenance costs.

IPC Classes  ?

• E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids

Abstract

A plastic debris and microplastics detection method based on RGB and hyperspectral image fusion. The method comprises the following steps: obtaining plastic debris and microplastics; mixing the plastic debris and the microplastics with solid wastes, so as to obtain a solid-phase matrix; pre-treating the solid-phase matrix to obtain a material; drying the material to remove some moisture therefrom and then coating same on a quartz slide, drying the material until the moisture is completely removed therefrom, and pressing the material flat with another quartz slide to obtain a material to be tested; respectively using a high-resolution color image scanner and a hyperspectral camera to obtain an RGB image and a hyperspectral image of the material to be tested; fusing the RGB image with the hyperspectral image; and using a supervised classification model to automatically classify and identify the plastic debris and the microplastics. Separation steps such as density flotation are not required, such that the loss of plastic debris and micro-plastics during pretreatment can be reduced; the time consumed for detection is short, and high-throughput analysis of a large amount of samples is realized; and the identification size range of the plastic debris and the microplastics is widened, and the identification precision is improved.

IPC Classes  ?

• G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
• G01N 1/28 - Preparing specimens for investigation
• G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level

Abstract

Disclosed herein are a method for differentiating a stem cell into a caudal serotonergic neuron, a complete culture medium, and use thereof. Specifically, a small molecule compound is added to form a new culture medium, so that human pluripotent stem cells are gradually induced to obtain hindbrain neural stem cells, ventral hindbrain caudal neural stem cells, serotonin precursor cells, and hindbrain caudal serotonergic neurons. The culture method of the present invention is simple and convenient and enables efficient acquisition of a mature serotonin neuron in a specific area, providing an effective cell model for research on related diseases of the serotonin system.

IPC Classes  ?

• C12N 5/0793 - Neurons
• C12N 5/0735 - Embryonic stem cellsEmbryonic germ cells

Abstract

An incremental device fault diagnosis method, using a trained fault diagnosis model to process data to be diagnosed having a new sample influx, to obtain a fault diagnosis result of a device. A construction method for the fault diagnosis model comprises: 1) constructing a complete sample set; 2) constructing an initial fault diagnosis model, and training the initial fault diagnosis model by using the complete sample set; 3) selectively retaining important sample subsets by using a sample retention method; 4) during the new sample influx, constructing an intermediate fault diagnosis model on the basis of the structure and parameters of the initial fault diagnosis model; and 5) on the basis of a knowledge distillation algorithm, jointly training the intermediate fault diagnosis model by using a new sample set and the important sample subsets, and obtaining and testing a final fault diagnosis model. The present invention realizes effective learning of new samples and retention of old samples, so that not only is the capability to determine new fault types achieved, but also good memory capability is kept for historical samples.

IPC Classes  ?

• G05B 23/02 - Electric testing or monitoring
• G06N 3/12 - Computing arrangements based on biological models using genetic models

Abstract

A longitudinal and lateral vehicle motion cooperative control method based on a fast solving algorithm comprises the following steps: calculating a desired yaw rate according to a steering wheel rotation angle and a current vehicle traveling speed; constructing a nonlinear optimization problem according to the desired yaw rate and a current actual motion state of a vehicle, wherein an objective function of the nonlinear optimization problem is used for tracking the desired yaw rate, and simultaneously for restraining a lateral speed and a tire slip ratio of the vehicle; solving the nonlinear optimization problem to calculate desired slip ratios of four tires; calculating an additional torque of each tire according to an actual slip ratio and the desired slip ratio of the tire; and sending the additional torque of each tire to an actuator of the vehicle for cooperative control.

IPC Classes  ?

• B60W 30/045 - Improving turning performance
• B60W 30/18 - Propelling the vehicle

Abstract

The present invention discloses a straight-line sewage treatment system for enhanced treatment of low-carbon-to-nitrogen ratio (C/N) domestic sewage, including a sewage intake tank, an enhanced denitrification tank through a pipeline, an effluent outlet of the enhanced denitrification tank, an effluent pipe, a first storage tank, a second storage tank, and a disinfection tank.

IPC Classes  ?

• C02F 3/28 - Anaerobic digestion processes
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 3/10 - PackingsFillingsGrids
• C02F 3/12 - Activated sludge processes
• C02F 3/30 - Aerobic and anaerobic processes

Abstract

The present application relates to the technical field of vehicle control, and in particular, to a driving world model based on a brain-like neural circuit. The driving world model includes: a perception module, an environment memory module, a brain-like neural circuit network module, and a convolutional network module; the perception module includes a two-dimensional feature encoding unit, a three-dimensional feature encoding unit, a summing pooling unit which are connected in sequence; the environment memory module is configured to acquire a current moment and memorize environment dynamics information; the brain-like neural circuit network module is configured to establish a brain-like neural circuit network. The present application uses a monocular camera image as an input image. The world model is applied to extracting and memorizing environment dynamics information, simulating a nematode nervous system to establish the brain-like neural circuit to process the environment dynamics information, completing an end-to-end automatic driving task.

IPC Classes  ?

• G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks

Abstract

The present invention provides a closed-loop online self-learning framework applied to an autonomous vehicle, and belongs to the technical field of automatic driving. The closed-loop online self-learning framework includes five data closed loop links, including: an Over-the-Air Technology (OTA) closed loop, an online learning closed loop, an algorithm evolution closed loop, a self-adversarial improvement closed loop, and a cloud coevolution closed loop. According to current characteristics of a self-evolution process of an algorithm, the five data closed loop links of the present disclosure are subjected to overall management through a logical switching layer of an upper layer, so as to separate a self-evolution algorithm from a typical machine learning flow, and closed-loop online self-learning of an automatic driving algorithm is achieved under a rapidly changing scenario by fully using an advanced artificial intelligence and automatic driving technology, so as to finally achieve closed-loop evolution of an automatic driving algorithm.

IPC Classes  ?

• G06N 20/00 - Machine learning

Abstract

The present invention relates to a learning-oriented transferable automatic driving method and system driven by a world model. The method includes the following steps: constructing a simulation environment; collecting a large batch of data in the simulation environment, and collecting a small batch of data in the real environment; constructing a world model, and performing model training in the simulation environment by using the large batch of data, wherein the world model takes a camera image as an input to model an environment by using a generative world model; storing and transmitting historical moment information by hidden variables, and outputting an aerial view and a control instruction; and performing domain adaptive transferring training in the real environment on the basis of the small batch of data, and deploying the model in an autonomous vehicle in the real world to achieve virtuality-to-reality transferring general integrated automatic driving.

IPC Classes  ?

• B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
• G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads

Abstract

The present invention relates to a deep-learning-based method for predicting the residual life of an aero-engine. The method comprises: acquiring data that reflects a full life cycle of an aero-engine, and obtaining the predicted residual life of the engine by means of a trained residual-life prediction model, wherein the life prediction model is constructed on the basis of deep learning. The training process of the prediction model comprises the following steps: S1, acquiring data that reflects a full life cycle of an aero-engine; S2, preprocessing the data; S3, on the basis of a random forest model, performing feature selection on the data; S4, on the basis of a Transformer model, performing feature extraction on data which has been subjected to feature selection; and S5, training an LSTM model by using data which has been subjected to feature extraction. Compared with the prior art, the present invention has the advantages of increasing the training speed, enhancing the stability of an algorithm, etc.

IPC Classes  ?

• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
• G06N 3/04 - Architecture, e.g. interconnection topology
• G06N 3/08 - Learning methods
• G06F 119/04 - Ageing analysis or optimisation against ageing

Abstract

Disclosed are an underground parking lot passage moving vehicle real-time detection system and method. The detection system comprises a millimeter-wave radar used to generate electromagnetic waves, a metal marking strip installed on a center line of a parking lot passage, a data analysis unit used to analyze reflected waves which are reflected back, a data storage unit, a communication unit used for data transmission, and a host computer. The steps of the detection method are: generating and emitting electromagnetic waves on the basis of the millimeter-wave radar; reflecting the electromagnetic waves, to acquire reflected waves; detecting a coordinate position, a direction of motion and a motion trajectory of a moving vehicle in the parking lot passage on the basis of the reflected waves. In the present invention, a detection area is accurate and controllable, and the target coordinate position, speed, direction of motion and motion trajectory information of a vehicle can be detected; the technology is mature, and the cost is low.

IPC Classes  ?

• G01S 13/66 - Radar-tracking systemsAnalogous systems
• G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

The present invention relates to a concrete structure 5D printing method and system. The method comprises the following steps: 1) acquiring spatial data and environmental data of a concrete structure to be printed; 2) performing analysis to obtain 5D performance of the concrete structure to be printed in space, environment and time, and designing a concrete ratio and printing parameters according to the analysis result; 3) generating a printing instruction according to the concrete ratio and the printing parameters, and constructing a concrete structure; and 4) performing collection and analysis to obtain 5D performance of the currently constructed concrete structure in space, environment and time, determining, on the basis of the 5D performance, whether the concrete structure is in a safe state, if yes, ending printing, and if not, performing reinforcement printing on an unsafe part and repeatedly performing step 4). Compared with the prior art, the present invention can achieve personalized design of the concrete structure in 5D space and dynamic control of construction parameters, and can ensure successful construction of the concrete structure and safe use of the structure.

IPC Classes  ?

• E04G 21/04 - Devices for both conveying and distributing
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The present disclosure relates to a method and system for improving solid-liquid separation performance of sludge by in-situ crystallization of water. The method comprises the following steps: adding sludge into a pressure vessel, intermittently introducing high-pressure carbon dioxide at a low-temperature condition to generate a carbon dioxide hydrate until a partial pressure of the carbon dioxide is stable, releasing the pressure, and stirring the sludge until no gas escapes, thus obtaining the treated sludge. Compared with the prior art, the method and system provided by the present disclosure are simple and easy to implement, has no consumption of sludge dewatering conditioning agents, and can achieve the recycling of carbon dioxide. The secondary environmental pollution risk caused by the sludge dewatering conditioning agent is reduced, the shortcomings of high dosage of chemicals, large sludge enlargement ratio, low sludge dewatering efficiency and the like in the traditional sludge dewatering process can be overcome.

IPC Classes  ?

• C02F 11/143 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances

Abstract

Disclosed in the present invention are a method and apparatus for evaluating the vulnerability of a single-pile foundation of an offshore wind turbine. The method comprises: collecting position data of an offshore wind farm, and wind wave feature data, and simulating a wind wave time course according to the position data of the offshore wind farm and the wind wave feature data; determining a wind wave dynamic load on the basis of the wind wave time course; acquiring lateral soil resistance data of a single-pile foundation under a plurality of rock-soil strength parameters, inputting the wind wave dynamic load into a three-dimensional finite element model, and generating a dynamic response result of the single-pile foundation by taking the lateral soil resistance data of the single-pile foundation under the plurality of rock-soil strength parameters as boundary conditions of the three-dimensional finite element model; giving a limit state of the single-pile foundation, and determining the vulnerability of the single-pile foundation on the basis of the dynamic response result of the single-pile foundation and the limit state of the single-pile foundation. The method realizes the accurate analysis of the vulnerability of a single-pile foundation of offshore wind turbines.

IPC Classes  ?

• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
• G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]

Abstract

A device for forming a prepressing-assembled asphalt mixture surface layer comprises: a wheel compaction module and a prepressing forming module. The wheel compaction module is configured to preliminarily compact a hot mix asphalt mixture. The prepressing forming module comprises a second reaction frame. A second loading device is hung at a top of the second reaction frame. An output end of the second loading device is fixedly connected to a prepressing plate. A conveyor belt passes through lower parts of the wheel compaction module and the prepressing forming module. A base is arranged on the conveyor belt. A surrounding mold is circumferentially fixed to the base. Through the prepressing module and the process, the device continuously applies a compaction load to the hot mix asphalt mixture surface layer, and effectively increases the adhesion between the aggregate and the asphalt to improve the strength of the assembled asphalt pavement.

IPC Classes  ?

• E01C 5/12 - Pavings made of prefabricated single units made of units with bituminous binders
• B28B 5/02 - Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type

Abstract

The present invention relates to an electrode having an integrated composite structure of a matrix and a catalyst layer, and a preparation method therefor. The method comprises the following steps: (1) carrying out impurity removal treatment on the surface of a nickel matrix; (2) placing the treated nickel matrix in a nickel precursor aqueous solution for electrodeposition; (3) adding a nickel-based alloy catalyst precursor aqueous solution into the electrodeposited nickel precursor aqueous solution to proceed to electrochemical deposition; (4) placing a composite electrode loaded with a nickel-based alloy catalytic layer having a gradient component structure in an ammonium solution for selective electrochemical etching; and (5) calcining the etched electrode. Compared with the existing technology, the present invention effectively prevents the problem of catalytic layer detachment in composite electrodes during long-term operation, thereby enhancing electrode stability. The matrix has a large specific surface area, ensuring a strong bond with the catalytic layer. In addition, effective control over the microstructure of the catalytic layer may be achieved, effectively increasing the specific surface area of the catalytic layer, and thereby improving the catalytic activity of the composite electrode.

IPC Classes  ?

• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 11/031 - Porous electrodes
• C25B 11/089 - Alloys
• C25D 5/12 - Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
• C25D 5/34 - Pretreatment of metallic surfaces to be electroplated
• C25D 5/48 - After-treatment of electroplated surfaces
• C25D 3/12 - ElectroplatingBaths therefor from solutions of nickel or cobalt
• C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys
• C25F 3/02 - Etching

Abstract

The use of α-KG in the manufacture of a medicament, the medicament being used for: 1) treating osteoarthritis and related diseases; and/or, 2) inhibiting the catabolic phenotype of chondrocytes; and/or, 3) promoting the synthetic phenotype of chondrocytes; and/or, 4) promoting the regeneration of skin hair follicles. A pharmaceutical composition provided by the present disclosure can protect cartilage tissue and impede the progression of osteoarthritis, thus having great potential application for the clinical treatment and prevention of osteoarthritis. Further, the medicament provided by the present disclosure can significantly increase the number of skin hair follicles, which also has great potential application value for the treatment and improvement of hair loss.

IPC Classes  ?

• A61K 31/194 - Carboxylic acids, e.g. valproic acid having two or more carboxyl groups, e.g. succinic, maleic or phthalic acid
• A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis

Abstract

The present invention relates to a nickel-based alloy composite electrode having a gradient component structure, and a preparation method therefor and a use thereof. The method comprises: placing a nickel matrix in a weak acid solution for pretreatment to remove surface impurities; placing the nickel matrix in a nickel-based alloy catalyst precursor aqueous solution, depositing a nickel-based alloy catalyst under an electrochemical condition, and by continuously regulating the catalyst precursor component concentration, forming a nickel-based alloy catalytic layer having a gradient component structure; placing a composite electrode loaded with the catalyst in an ammonium solution for selective electrochemical etching; and then, performing calcining to finally prepare a nickel-based alloy composite electrode having a gradient component structure. Compared with the prior art, the present invention realizes in-situ growth of the catalyst on the surface of the matrix, enhances the binding force of the catalytic layer and the matrix, and improves the stability of the electrode. Moreover, by means of a selective electrochemical etching method based on an ammonium solution, the specific surface area of the catalytic layer is effectively increased, and the catalytic activity of the composite electrode is improved.

IPC Classes  ?

• C25B 11/089 - Alloys
• C25B 11/061 - Metal or alloy
• C25B 11/052 - Electrodes comprising one or more electrocatalytic coatings on a substrate
• C25B 11/031 - Porous electrodes
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys
• C25D 5/40 - NickelChromium
• C25D 5/48 - After-treatment of electroplated surfaces
• C25F 3/02 - Etching

Abstract

An organic solid waste anaerobic digestion device based on uncoupling of hydraulic retention time (HRT) from sludge retention time (SRT) includes a self-sustaining air flotation screening tank. A sludge pipe of the self-sustaining air flotation screening tank is connected with a first separating mechanism. A bottom of the first separating mechanism is connected with a second separating mechanism, and two separating mechanisms are connected with a return pipe of the self-sustaining air flotation screening tank. Through the two separating mechanisms, the heavy inert materials at the bottom of the self-sustaining air flotation screening tank can be subjected to swirl separation, so that the liquid part, the solid part and the gas part can be completely separated, and then the useful active materials are conveyed to the reaction device.

IPC Classes  ?

• C02F 3/28 - Anaerobic digestion processes
• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• C02F 1/24 - Treatment of water, waste water, or sewage by flotation
• B01D 33/06 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
• C02F 1/38 - Treatment of water, waste water, or sewage by centrifugal separation
• C02F 1/00 - Treatment of water, waste water, or sewage
• C12M 1/00 - Apparatus for enzymology or microbiology

Abstract

A thermal pretreatment method for organic solid waste based on forced hot air convection is performed as follows. Experimental materials are grouped into an experimental group and a control group. The experimental group is subjected to thermal pretreatment in a thermal pretreatment device, and then removed. The experimental group and the control group are subjected to enzymatic hydrolysis and physicochemical characterization, and the analysis results are compared. A thermal pretreatment device for organic solid waste based on forced hot air convection is also provided.

IPC Classes  ?

• F27B 17/00 - Furnaces of a kind not covered by any of groups
• B09B 3/40 - Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
• B09B 3/60 - Biochemical treatment, e.g. by using enzymes
• C12M 1/00 - Apparatus for enzymology or microbiology
• F27D 11/02 - Ohmic resistance heating

Abstract

A method for calculating flexural capacity of a steel plate-reinforced joint in shield tunnel includes: (S1) obtaining a construction parameter, a material parameter, and a mechanical parameter of a joint surface; and calculating a virtual strain εsp,0a height xcb1 of a critical compression zone for bolt yielding in case of section failure, and a height xcb1 of a critical compression zone for steel plate yielding; (S2) calculating a height xc of a compression zone of a joint surface of the steel plate-reinforced joint in a certain failure state; (S3) determining whether xc satisfies a range requirement: if so, executing step (S4); and if no, replacing a new failure state; and skipping to step (S2) until traversing all failure states; and (S4) substituting xc into a bending moment equilibrium equation for the current failure state; and calculating an ultimate bending moment. A computer-readable storage medium is further provided.

IPC Classes  ?

• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
• G06F 17/17 - Function evaluation by approximation methods, e.g. interpolation or extrapolation, smoothing or least mean square method

Abstract

A test system for measuring the gas permeation parameters of an ultra-low permeability medium in multi-field and multi-phase coupling conditions, comprising a triaxial permeation chamber, a deformation monitoring apparatus, a temperature sensing control apparatus, a volume/pressure controller, a bias stress loading apparatus, a gas injection apparatus, an outlet buffer container, and an ultra-low permeation flow monitoring apparatus. During the test, first applying temperature and triaxial stress control to a rock-soil mass sample; using the gas injection apparatus to inject high-pressure gas into the rock-soil mass sample; after permeation, the high-pressure gas enters the outlet buffer container and the ultra-low permeation flow monitoring apparatus to acquire the gas permeation flow; and, in the test process, the deformation monitoring apparatus can measure the local absolute deformation of the rock-soil mass sample. Full-process monitoring of the gas permeation of an ultra-low permeability medium in multi-field and multi-phase coupling conditions is thereby implemented.

IPC Classes  ?

• G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
• G01B 7/24 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
• G01N 33/24 - Earth materials
• G01N 15/00 - Investigating characteristics of particlesInvestigating permeability, pore-volume or surface-area of porous materials

Abstract

A deep learning based method for automatic geological disaster extraction from unmanned aerial vehicle image, belonging to the technical field of unmanned aerial vehicle image processing. The method comprises: S1, acquiring an unmanned aerial vehicle image; S2, preprocessing the acquired unmanned aerial vehicle image, so as to obtain a preprocessed unmanned aerial vehicle image; S3, performing feature extraction on the preprocessed unmanned aerial vehicle image, so as to obtain feature information of the unmanned aerial vehicle image; and S4, inputting the feature information of the unmanned aerial vehicle image into a trained neural network model, so as to obtain a geological disaster extraction result. The method can perform preprocessing on the acquired unmanned aerial vehicle image and feature extraction, and, perform self-adaptive geological disaster recognition by using the trained neural network model so as to extract corresponding geological disaster inspection information, thus helping to improve the efficiency and accuracy of geological disaster detection, effectively reducing the labor costs, and improving the intelligent level of geological disaster detection.

IPC Classes  ?

• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06N 3/04 - Architecture, e.g. interconnection topology
• G06N 3/08 - Learning methods

Abstract

Provided are an immunocompatible human pluripotent stem cell, a method for preparing same, and use thereof. The modified human pluripotent stem cell can be induced and differentiated into various tissues/organ cells, has very ideal immunocompatibility, and has a wide application environment.

IPC Classes  ?

• C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
• C12N 15/62 - DNA sequences coding for fusion proteins
• C12N 15/867 - Retroviral vectors
• C07K 19/00 - Hybrid peptides
• C07K 14/74 - Major histocompatibility complex [MHC]

Abstract

Embodiments of the present disclosure relate to a method of exploiting underground resources with a negative thixotropic fluid, which induces the fault or the fracture to slip by replacing a conventional mode of injecting water with a mode of injecting the negative thixotropic fluid. According to the negative thixotropy of the injected fluid, when the fault or the fracture does not slip, viscosity of the negative thixotropic fluid is low, and the negative thixotropic fluid could flow in the fracture network. When the fault or the fracture slips, a great shear strain rate is generated, such that the viscosity of the negative thixotropic fluid is rapidly increased with the shear strain rate, to generate a great resistance force, thereby preventing the fault from further slipping.

IPC Classes  ?

• E21B 43/27 - Methods for stimulating production by forming crevices or fractures by use of eroding chemicals, e.g. acids
• E21B 47/005 - Monitoring or checking of cementation quality or level

Abstract

A microbial inoculant for high-speed humification of organic waste and a preparation method thereof are provided. According to the present disclosure, the microbial inoculant is prepared from Geobacillus stearothermophilus GT1, Thermus tengchongensis GT2, and Thermus amyloliquefaciens GT3. According to the present disclosure, the microbial inoculant prepared from hyperthermophiles with different functions directionally degrades proteins, promotes humification, and degrades complex polysaccharides and organic waste. The resulting products contain rich surface oxygen-containing functional groups, which can adsorb heavy metals and reduce the heavy metal migration rate. Meanwhile, the preparation method of the microbial inoculant provided by the present disclosure can solve the problem that multiple microbial strains are difficult to enrich, and materials for preparing the microbial inoculant can be recycled, which are environmentally friendly and free of secondary pollution.

IPC Classes  ?

• C05F 11/08 - Organic fertilisers containing added bacterial cultures, mycelia or the like
• C12N 1/20 - BacteriaCulture media therefor

Abstract

The present invention relates to an application of an isoquinoline compound in tumor treatment. Specifically, the present invention provides a use of a compound of formula I, or an optical isomer or a racemate thereof, or a solvate thereof, or a pharmaceutically acceptable salt thereof used for the preparation of a composition or formulation for the prevention and/or treatment of a tumor. The compound of the present invention has significant and exceptional therapeutic effects on tumors with low or no expression of an NNMT gene, high expression of a DNA methylase, high expression of UHRF1, high methylation levels at an NNMT gene nucleotide site, and/or high methylation levels at a DNA CpG site in an NNMT gene region.

IPC Classes  ?

• A61K 31/4741 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having oxygen as a ring hetero atom, e.g. tubocuraran derivatives, noscapine, bicuculline
• C12Q 1/6886 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
• A61P 35/00 - Antineoplastic agents

Abstract

A sewer pipe inflow and infiltration diagnosis method based on a distributed fiber-optic temperature measurement system is provided. The inflow and infiltration diagnosis method includes the following steps: S1: transmitting, by an optical time-domain reflectometer, an original optical signal to a temperature sensing fiber-optic cable provided in a sewer pipe; S2: feeding back, by the temperature sensing fiber-optic cable, a modulated optical signal to the optical time-domain reflectometer due to a temperature effect; S3: subjecting the modulated optical signal to photoelectric conversion, so as to acquire binary information; S4: converting the binary information into decimal information; S5: drawing a spatiotemporal map of a water temperature; and S6: eliminating a background noise value, identifying an abnormal water temperature point, determining an inflow and infiltration point of the sewer pipe, and determining an abnormal inflow and infiltration point of the sewer pipe.

IPC Classes  ?

• G01K 11/32 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres
• F16L 55/28 - Constructional aspects
• F16L 101/30 - Inspecting, measuring or testing

Abstract

The present invention relates to a hybrid hydrogen production system coupled with a supercapacitor, and a control method therefor. The hybrid hydrogen production system comprises an alkaline electrolytic hydrogen production subsystem, a shunting module, a supercapacitor and a power generation subsystem, wherein the power generation subsystem is connected to the shunting module; the supercapacitor and the alkaline electrolytic hydrogen production subsystem are respectively connected to the shunting module; and according to whether there is a current fluctuation that exceeds a preset threshold value, the shunting module inputs a stable current into the alkaline electrolytic hydrogen production subsystem and inputs a fluctuating current into the supercapacitor. Compared with the prior art, the present invention has the advantages of the efficient and stable work of an electrolytic hydrogen production system being able to be guaranteed, the energy utilization rate being able to be increased, etc.

IPC Classes  ?

• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 9/00 - Cells or assemblies of cellsConstructional parts of cellsAssemblies of constructional parts, e.g. electrode-diaphragm assembliesProcess-related cell features
• C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
• C25B 15/02 - Process control or regulation
• H02J 1/10 - Parallel operation of dc sources
• H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

Abstract

The present invention relates to a combined lye tank, and an alkaline water electrolysis hydrogen production system having same. The combined lye tank comprises a large-size lye tank and a small-size lye tank which are connected in series, wherein the large-size lye tank and the small-size lye tank are each internally provided with a heating device. Compared with the prior art, the combined lye tank designed in the present invention significantly improves the cold start efficiency of an alkaline water electrolysis hydrogen production system.

IPC Classes  ?

• C25B 9/60 - Constructional parts of cells
• C25B 9/67 - Heating or cooling means
• C25B 9/70 - Assemblies comprising two or more cells
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water

Abstract

The disclosed relates to a hybrid traffic flow motion behavior modeling method based on an inference graph, wherein the method comprises: obtaining scene information, representing all traffic participants in the scene as vertices, and using directed edges to represent interaction relationships among traffic participants, so as to obtain the interaction graph; obtaining all possible interaction situations according to the interaction graph; based on each possible interaction situation, estimating the trajectory of each traffic participant in the interaction situation, and judging whether the trajectory conforms to a preset empirical decision-making criteria, so as to judge rationality of the interaction situation; and judging the rationality of all possible interaction situations obtained in the interaction situation generation step in turn until an interaction situation satisfying the rationality is found, and taking a trajectory of each traffic participant corresponding to the interaction situation as a final execution trajectory.

IPC Classes  ?

• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
• G06F 111/10 - Numerical modelling