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.
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.
G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
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.
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.
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.
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.
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.
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.
B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
B60W 50/00 - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - 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 pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
9.
DEEP-LEARNING-BASED METHOD FOR PREDICTING RESIDUAL LIFE OF AERO-ENGINE
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.
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
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.
G01S 13/66 - Radar-tracking systems; Analogous systems
G01S 7/41 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisation; Target signature; Target cross-section
B61L 25/02 - Indicating or recording positions or identities of vehicles or vehicle trains
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.
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.
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.
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]
14.
DEVICE AND PROCESS FOR FORMING PREPRESSING-ASSEMBLED ASPHALT MIXTURE SURFACE LAYER
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.
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
15.
Method And System For Traffic Clearance At Signalized Intersections Based On Lidar And Trajectory Prediction
The invention discloses a method and system for traffic clearance at signalized intersections based on lidar and trajectory prediction, belonging to the field of intelligent transportation systems. The invention obtains live vehicle trajectory data at the entrance of the intersection based on 3D LiDAR, and predicts whether a motor vehicle will enter at the signalized intersection when traffic light changes from green to red (which normally involves the yellow change interval). It uses the 3D LiDAR installed at the intersection covering the entrance to collect the trajectory data of the vehicle, and further judges whether the vehicle will enter the intersection after the yellow change interval; it also predicts the driving time of the entered vehicle in the intersection, and determines the all-red time of the intersection on this basis, so as to achieve the purpose of clearing the traffic within the intersection in time and reducing traffic conflicts.
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.
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.
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.
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.
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.
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.
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.
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
23.
DEEP LEARNING BASED METHOD FOR AUTOMATIC GEOLOGICAL DISASTER EXTRACTION FROM UNMANNED AERIAL VEHICLE IMAGE
CHINA HIGHWAY ENGINEERING CONSULTANTS CORPORATION (China)
CHECC HIGHWAY MAINTENANCE AND TEST TECHNOLOGY CO. LTD. (China)
TONGJI UNIVERSITY (China)
Inventor
Hou, Yun
Zhang, Yunling
Yang, Xuan
Dong, Yuanshuai
Wu, Hangbin
Cui, Li
Hu, Lin
Zhang, Xueliang
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.
SHANGHAI INSTITUTE OF NUTRITION AND HEALTH, CHINESE ACADEMY OF SCIENCES (China)
SHANGHAI EAST HOSPITAL, SCHOOL OF MEDICINE, TONGJI UNIVERSITY (China)
TONG JI UNIVERSITY (China)
Inventor
Yang, Huang-Tian
Zhang, Peng
Rao, Sen-Le
Zhang, Xiaoqing
Liu, Ling
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.
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.
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.
NANJIANG SHIJIANG MEDICINE TECHNOLOGY CO., LTD (China)
TONGJI UNIVERSITY (China)
Inventor
Shi, Yufeng
Ma, Wenjiang
Jiang, Cizhong
Wu, Changqing
Liu, Yu'E
Liu, Wenju
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.
A61K 31/4741 - Quinolines; Isoquinolines 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
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.
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
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.
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 9/00 - Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
C25B 9/65 - Means for supplying current; Electrode connections; Electric inter-cell connections
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.
The present disclosure pertains to a rock crack information identification method and system based on a variational autoencoder, and belongs to the technical field of rock mechanical fracturing tests in petroleum engineering. A micro-resistivity scanning imaging test and a computed tomography (CT) scanning test are performed on each rock specimen to obtain a two-dimensional micro-resistivity distribution image and a three-dimensional CT scanning image of the rock specimen for training, and an initial variational autoencoder is trained to obtain a trained variational autoencoder. In an actual application, a two-dimensional micro-resistivity distribution image of a rock to be tested is obtained first, and the three-dimensional CT scanning image is reconstructed by using the trained variational autoencoder, such that rock crack information of the rock to be tested is accurately determined with low costs.
G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
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.
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
33.
HIGH-PRECISION ACTIVE PRESSURE CONTROL METHOD FOR ALKALINE WATER ELECTROLYZER
The present invention relates to a high-precision active pressure control method for an alkaline water electrolyzer, comprising the following steps: acquiring external input power of the electrolyzer and real-time pressure in the electrolyzer under a fluctuating working condition; determining a power range where the external input power is located, determining a pressure setting value according to the power range where the external input power is located, and stabilizing the pressure in the electrolyzer to the pressure setting value; and if the external input power is increased or decreased, determining the opening degree, needing to be changed, of pressure regulating valves according to a power change value, and gradually increasing or decreasing the opening degree of the pressure regulating valves. Compared with the prior art, according to the present invention, the external input power is acquired in real time to determine the pressure setting value so as to roughly adjust the opening degree of the pressure regulating valves, then the opening degree of the pressure regulating valves is finely adjusted according to increase and decrease of the external input power, and two different types of pressure regulating valves, i.e., high-precision large-flow pressure regulating valves and low-precision small-flow pressure regulating valves are used, such that the pressure change under different fluctuation working conditions can be adapted, and the requirement for pressure stability is satisfied.
The present application discloses use of nano layered double hydroxides in cartilage regeneration and a method for preparing same, and particularly, discloses use of nano layered double hydroxides in promoting chondrogenic differentiation of mesenchymal stem cells and use of nano layered double hydroxides in preparing a medicament for promoting cartilage regeneration, promoting intervertebral disc repair, or treating intervertebral disc degeneration. Compared with mesenchymal stem cells that are not provided with the nano layered double hydroxides, mesenchymal stem cells provided with the nano layered double hydroxides exhibit better and faster differentiation to chondroblasts.
The present invention relates to a method for improving an alkaline soil and enhancing carbon capture by using a sludge stabilization product. The method comprises the following steps: (1) performing aerobic composting on sludge to obtain a stabilization product A; (2) using a part of the stabilization product A to extract a humus B, using the remaining part of the stabilization product A to hydrothermally extract a dissolved organic matter rich in amino acids and organic salts, and obtaining a mixture C after distilling to dryness; (3) performing pyrolysis on residues obtained in the process of extracting the humus B and the mixture C to prepare biochar D rich in metal oxides; (4) fully mixing the stabilization product A, the humus B, the mixture C, and the biochar D to obtain a soil conditioner E; and (5) applying the soil conditioner E to an alkaline soil surface layer, and planting plants. Compared with the prior art, the present invention can synchronously implement sludge recycling, alkaline soil improvement, and carbon capture enhancement, has no secondary pollution, avoids soil erosion, and has a long-lasting carbon capture function.
Disclosed is a method and system for realizing rapid degradation of halogenated organic pollutants in water. The system comprises a hydrodehalogenation reactor, an advanced oxidation reactor, a hydrogen gas supply unit and a control unit. The method comprises: 1) introducing a palladium salt into the hydrodehalogenation reactor and the advanced oxidation reactor, and reducing and loading palladium onto the surfaces of membrane modules; 2) introducing a wastewater containing the halogenated organic pollutants into the hydrodehalogenation reactor, and subjecting the halogenated pollutants to hydrodehalogenation with palladium catalysis; 3) introducing the dehalogenated wastewater into the advanced oxidation reactor, and adding a persulfate into the second reactor body. The present disclosure has the advantages including a fast degradation rate of the halogenated organic pollutants, a removal efficiency of ≥99%, low toxicity of the effluent products, a hydrogen utilization ratio of ≥99%, and no need for additional persulfate activation.
A method and system for active control of road network traffic congestion, and in particular, to the technical field of traffic congestion control includes: constructing a directed graph according to the positions of detectors in a road network; determining a free-flow reachability matrix of the directed graph and a plurality of neighborhood matrices with different orders according to a free-flow vehicle speed between cross-sections where the detectors are located and the directed graph; calculating a convolution operator of the directed graph within a set time period; inputting the convolution operator of the directed graph within the set time period into a long short-term memory neural network model to obtain a traffic state of each cross-section at each moment within a predicted time period; and determining whether a control method for each cross-section is single-point control or circle layer control.
N6-methyladenosine (m6A) is the most abundant internal modification on mammalian messenger RNA (mRNA). It is installed by a writer complex and can be reversed by erasers such as the fat mass and obesity-associated protein FTO. Despite extensive research, the primary physiological substrates of FTO in mammalian tissues and development remain elusive. Aspects disclosed show that FTO mediates m6A demethylation of long-interspersed element-1 LINE1 RNA in mouse embryonic stem cells (mESCs), regulating LINE1 RNA abundance and the local chromatin state, which in turn modulates transcription of LINE1-containing genes. FTO-mediated LINE1 RNA m6A demethylation also plays regulatory roles in shaping chromatin state and gene expression during mouse oocyte and embryonic development. FTO overexpression is also disclosed to modulate fertility.
The present invention discloses a method for promoting methane production by anaerobic digestion in a high ammonia-nitrogen habitat using a biochar with a high carbon-to-nitrogen (C/N) ratio. In this method, a biochar material prepared by dry distillation and carbonization is added to municipal sludge for medium-temperature anaerobic digestion treatment, which increases the efficiency of methane production from sludge by anaerobic digestion in different ammonia-nitrogen stress habitats, thereby realizing the utilization of sludge as resources.
The present invention relates to a large-area electrode support body structure of an alkaline water electrolytic cell. An electrode is formed by weaving metal wires; a first end of the electrode is provided at an alkaline-liquor inlet of the electrolytic cell, and a second end of the electrode is provided at an alkaline-liquor outlet of the electrolytic cell; and the electrode has a non-uniformly distributed structure. The weaving density of the metal wires non-uniformly changes from the first end to the second end of the electrode; and the weaving density of the metal wires at the first end is greater than the weaving density of the metal wires at the second end. Compared with the prior art, the present invention provides the design of an electrode structure, which matches a reaction process, according to the characteristics of the non-uniform temperature and reaction rate of a large electrolytic cell, such that the electrolytic efficiency can be effectively improved.
An alkaline water electrolyzer partition electrode based on non-uniform electro-deposition, and a preparation method. The electrode comprises an electrode base (1) and an electrode binding post (2) for providing the electrode base (1) with a current input, wherein two ends of the electrode base (1) respectively correspond to an inlet side and an outlet side of an electrolyzer, a catalyst layer is deposited on a surface of the electrode base (1), and the density of catalysts in the catalyst layer decreases in gradient and in a direction from the inlet side to the outlet side of the electrolyzer. Compared with the prior art, the electrode has the advantage of high hydrogen production efficiency.
The present invention relates to a multi-modal magnetic treatment apparatus combined with a permanent magnet and electromagnetism, comprising a base, a sample table, an electromagnetic mechanism, a permanent magnet mechanism, a permanent magnet mechanism motion driving mechanism, a sample table lifting driving mechanism and a control system, wherein the sample table, the electromagnetic mechanism and the permanent magnet mechanism are respectively mounted on the base; the electromagnetic mechanism and the permanent magnet mechanism are respectively connected to the control system; the permanent magnet mechanism is mounted on the base by means of the permanent magnet mechanism motion driving mechanism; the sample table is mounted on the base by means of the sample table lifting driving mechanism; and magnetic fields of the electromagnetic mechanism and the permanent magnet mechanism act on the sample table respectively, so as to apply rotating permanent magnet and alternating electromagnetism to a sample. Compared with the prior art, the present invention has the advantages of multi-modal magnetic treatment.
The present invention discloses an adaptive damping nonlinear spring-variable damping system and a mobile platform system, with the nonlinear spring-variable damping system applied to the mobile platform. The nonlinear spring-variable damping system is characterized in that the system comprises: an oil cylinder accommodating damping oil; a piston, accommodated in the oil cylinder and movable along the oil cylinder to make the damping oil flow; at least one connecting rod, connected to the piston; at least one spring, whose deformation process is constrained by the connecting rod; and a damping adaptive adjustment device, configured to be able to adaptively change the flow resistance of the damping oil according to the vibration of the mobile platform, so as to control the system damping; wherein, when the mobile platform vibrates, the connecting rod and the spring can subject the piston to a nonlinear spring force. The amplitude of the nonlinear spring-variable damping system, compared with the linear spring-damping system, is greatly suppressed.
B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
B60G 3/20 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements
The present invention relates to an alkaline water electrolyser device provided with multi-current input binding posts. The device comprises an electrolyser body and an electrolytic membrane mounted in the electrolyser body. The electrolytic membrane divides an inner cavity of the electrolyser body into two independent cavities, i.e., a cathode cavity and an anode cavity; a cathode electrode is provided in the cathode cavity; an anode electrode is provided in the anode cavity; the cathode electrode is connected to a first group of binding posts; the anode electrode is connected to a second group of binding posts; and the first group of binding posts and the second group of binding posts are both composed of a plurality of binding posts and are respectively connected at different positions of the cathode electrode and the anode electrode. According to the present invention, by adopting the design of the multi-current input binding posts, the current distribution is improved and tends to be uniform, so that the electrolyser can work stably.
B01J 20/22 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
C07C 7/12 - Purification, separation or stabilisation of hydrocarbons; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 20/281 - Sorbents specially adapted for preparative, analytical or investigative chromatography
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
A sound absorption and bearing integrated structure (3) and a preparation method therefor. The sound absorption and bearing integrated structure (3) comprises first connection nodes (21) and perforated hollow rods connected to the first connection nodes (21), wherein the first connection nodes (21) are of a solid structure, and the connection positions between the first connection nodes (21) and the perforated hollow rods are smoothly transitioned by means of cambered surfaces; the first connection nodes (21) and the perforated hollow rods form a sound absorption unit (2), and the perforated hollow rod of one sound absorption unit (2) extends axially forwards from the first connection node (21), extends to be connected to the first connection node (21) of another sound absorption unit (2), or extends to intersect with the perforated hollow rod of another sound absorption unit (2) to form a second connection node (22); the number of perforated hollow rods connected to the second connection nodes (22) is not greater than the number of perforated hollow rods connected to the first connection nodes (21); and the perforated hollow rod comprises a rod body (1), a cavity (11) is provided inside the rod body (1), through holes (12) are provided in the rod body (1), the through holes (12) are in communication with the cavity (11), and the through holes (12) and the cavity (11) form a Helmholtz resonant cavity.
G10K 11/172 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 3/12 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
The invention discloses a real-time online monitoring, perception, and early warning method for vortex-induced vibration of suspension bridges. Based on the fast Fourier transform FFT of the bridge acceleration monitoring signal, The first-order nature frequency of the bridge can be obtained by reading the horizontal coordinate corresponding to the first-order energy peak of the spectrum and determine the high-pass filter cut-off frequency. The low-frequency noise is eliminated by the filter in order to calculate the displacement of the bridge by the recursive acceleration integration method; Taking the integrated displacement data as the real part and its Hilbert transform as the imaginary part, the analytic signal is plotted and evaluated in the complex plane to achieve the perception and early warning of VIVs. The advantages of the invention are real-time, high precision, accuracy and intuition, online real-time VIV perception and measurement of bridge vibration parameters during VIV can be realized.
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
48.
INTELLIGENT SEGMENT WITH CONCRETE EMBEDDED WITH GAS/LIQUID-FILLED STEEL PIPES
The present invention relates to an intelligent segment with concrete embedded with gas/liquid-filled steel pipes, the segment including a concrete portion, wherein the concrete portion serves as a main stress component of the segment, is made of ultra-high performance concrete and is provided with a hollow portion for arranging the steel pipes; a steel pipe portion, wherein the steel pipe portion includes the gas/liquid-filled steel pipes uniformly arranged on a tension side of the segment and penetrating through the entire segment in a circumferential direction, and a gas/liquid filling system and a pneumatic/hydraulic control system connected to the steel pipes; a reinforcing bar portion, wherein the reinforcing bar portion includes longitudinal bars for bearing the tension, stirrups for bearing the shear force and supports meeting construction structure requirements; and a joint portion, wherein the joint portion includes circumferential seam joints and longitudinal seam joints.
Disclosed is a method for continuously producing polyaluminum chloride from aluminum slag, comprising: blending the aluminum slag with water into a slurry in a mixing tank; pumping the slurry and a sodium hydroxide solution into a first mixing reactor; introducing the mixture obtained in the first mixing reactor into a second mixing reactor and pumping hydrochloric acid into the second mixing reactor; and filtering the resulting mixture and allowing filtrate for ripening, polymerization and sedimentation to obtain liquid polyaluminum chloride; wherein each of the reactors is pipeline-shaped, arranged horizontally and provided with a spiral conveyor shaft inside which is arranged horizontally and configured to stir and convey the mixture in a pipeline. This method realizes a continuous treatment of aluminum slag together with a continuous recovery of ammonia nitrogen and produces PAC, thereby achieving resourceful utilization and improved operability.
A method and device for dynamically adjusting train interval based on wide-area interlocking control, and a computer-readable storage medium. The method includes: (1) dynamically managing trains; (2) identifying a following relationship; if there is a following relationship, performing step (3), otherwise, controlling the train using existing control technology; (3) identifying weather; if the thunderstorm weather occurs, performing step (4); otherwise, adjusting the train interval by existing control technology; (4) acquiring operation states of a wireless communication system, traction power grid, traction drive system and train control system in real time; if the operation conditions are normal, performing step (5), otherwise, performing step (6); (5) independently analyzing the safety of actual following distance by the preceding and following trains in real time; performing interlocking control according to analysis results; and (6) activating a fail-safe interlocking control module to ensure dynamic and safe control of the train interval.
The present application provides a composite catalyst and use thereof in preparing propylene glycol, where the composite catalyst includes: a main catalyst; and an assistant catalyst, forming on the main catalyst; the assistant catalyst is a magnesium hydroxide shell with a cage-like shape forming on the surface of the main catalyst, and the main catalyst is located inside the magnesium hydroxide shell.
B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
B01J 35/10 - Solids characterised by their surface properties or porosity
C07C 29/60 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by elimination of hydroxy groups, e.g. by dehydration
52.
LANE ALIGNMENT DETECTION METHOD BASED ON MILLIMETER WAVE RADAR DATA
The present disclosure discloses a method for lane alignment detection based on millimeter wave radar data. An embodiment of the method comprises: acquiring the vehicle trajectory data and radar reflection data detected by the millimeter wave radar which are installed on the road to sense the moving vehicles; setting up two datasets in the database, including vehicle track dataset and waypoint dataset obtained after rasterizing the road; filtering vehicle track data and vehicle radar reflection data detected by millimeter-wave radar and eliminate erroneous data; performing radial clustering and horizontal initial stable point clustering on the filtered data; extracting and outputting the lane alignment. Compared with the prior art, the invention possesses the advantages of obtaining more accurate lane alignments, low cost and good adaptability, etc.
The present invention relates to an auditing system for an elderly age-friendly subdistrict built environment on the basis of multi-source big data. The system comprises a data collection module, a data classification and auditing module, a data summarization and analysis module and an auditing result output module, wherein the data collection module is used for collecting urban street view image data, urban road network data and urban point-of-interest data within a target range; the data classification and auditing module is used for acquiring data of the data collection module, classifying image data, looking up a table according to a classification result, processing the image data by using a data processing method that is acquired by means of looking up the table, and acquiring assessment values of different types of indicators; the data summarization and analysis module is used for acquiring the assessment values of the data classification and auditing module, calculating a sub-item indicator value of each output unit, and performing calculation according to the sub-item indicator values to obtain result data; and the auditing result output module is used for acquiring the result data of the data summarization and analysis module, and visualizing the result data and outputting same. Compared with the prior art, the present invention has the advantages of a high auditing efficiency, etc.
Provided is a high permeance nanofiltration membrane with nanoring-like structure and preparation method thereof. The membrane includes a base film and a polyamide layer having nanoring-like structure morphology on its surface. The method includes: (1) formulating a piperazine nanoemulsion containing a surfactant, vegetable oil, piperazine and water; and (2) infiltrating a base film with the piperazine nanoemulsion, and removing excess droplets from the surface of the base film to obtain a treated base film; covering the surface of the treated base film with a solution of trimesoyl chloride in n-hexane to perform interfacial polymerization; and drying the resulting membrane. Introduction of nano-oil droplets into aqueous phase as templates to construct nanoring-like structure morphology on the surface of the polyamide layer significantly increases the specific surface area and free volume of the polyamide layer without losing the salt rejection rate of the membrane, thereby greatly improving its water permeance.
The present invention relates to a high-toughness geopolymer grouting material modified by ultra-high molecular weight fibers and emulsified asphalt, and a preparation method and application thereof, wherein the grouting material comprises the following components in parts by mass: 4-12 parts of emulsified asphalt, 80-100 parts of a geopolymer, 103-126 parts of an alkali-activated solution, 2-3 parts of ultra-high molecular weight fibers and 30-35 parts of water. Compared to the prior art, the grouting material modified by ultra-high molecular weight fibers and emulsified asphalt is simple to prepare, has good fluiditygood, and matches well with road substrate; the good toughness and crack control capability of the ultra-high molecular weight fibers enables this novel grouting material to overcome the problem in durability of common geopolymer-based materials. The material of the present invention can be applied in filling voids beneath a slab of a cement concrete pavement and in the technology of non-excavation road reinforcement of a road base course and a subgrade of a high-grade highway.
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
The present disclosure relates to an intelligent and healthy lighting method and device for an office space micro environment. According to the present disclosure, high-illuminance light can be provided, according to periodic variations of human rhythms and characteristics of office time (i.e., lighting time control data), in the morning to increase rhythmic stimulation to improve alertness of office staff and working efficiency. In addition, the present disclosure effectively solves the problem that conventional lamps cannot meet the requirements of human rhythm health by setting a lighting method having multiple modes (i.e., an awake mode, a rest mode, a relax mode, a work mode, a night mode, and a silence mode) and multiple scenes (i.e., determining a lighting mode according to ambient light data, lighting time control data, and human posture data).
H05B 47/11 - Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
H05B 47/13 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
H05B 47/16 - Controlling the light source by timing means
H05B 45/28 - Controlling the colour of the light using temperature feedback
57.
METHOD AND SYSTEM FOR QUANTIFYING DEGREE OF BLENDING OF VIRGIN AND AGED ASPHALT IN HOT RECYCLED ASPHALT MIXTURES (HRAM)
The present disclosure provides a method and system for quantifying a degree of blending of virgin and aged asphalt in HRAM. The method includes the following steps: first, constructing a relational equation between the microscale modulus of recycled asphalt in a fully blended state and the content of the aged asphalt; measuring the microscale modulus of the recycled asphalt, the microscale modulus of the aged asphalt, the microscale modulus of the virgin asphalt, and the content of the aged asphalt in the HRAM in situ; inputting the dates above into the relational equation to obtain the microscale modulus of the recycled asphalt in the fully blended state; and based on the microscale modulus of the recycled asphalt measured in situ and the microscale modulus of the recycled asphalt in the fully blended state, obtaining the degree of blending of the virgin and aged asphalt in the HRAM.
The present invention relates to a method of predicting an off-target event of CRISPR-Cas system comprising a guide RNA to be tested and Cas protein, comprising identifying more than one potential targeting sequences for a guide RNA to be tested, optionally, identifying all the potential targeting sequences across the genome for the guide RNA to be tested; determining a cleavage probability for each hybrid between the guide RNA to be tested and any one of the one or more potential targeting sequences based on one or more secondary features, particularly more than one secondary features for a nucleotide pair of a hybrid between the guide RNA to be tested and the potential targeting sequence; determining a cleavage specificity of the guide RNA to be tested based on the cleavage probability for each hybrid between the guide RNA to be tested and any one of the one or more potential targeting sequences.
A subgrade with local deep excavation and backfilling structure and a rapid construction method thereof are provided. Supporting cast-in-place piles are laid at positions where an underground pipe gallery is located in a subgrade structure, and soil there between are longitudinally excavated to form a line-shaped foundation pit. A bottom of the line-shaped deep foundation pit is reinforced to support the underground pipe gallery, and lateral peripheral regions and top peripheral regions of the underground pipe gallery are backfilled with block geobag reinforced fillers. Geogrids are placed on the top of the underground pipe gallery, then backfilling compaction and reinforcing are performed, and the geogrids are fixedly assembled with anchor bolts. The construction method is simple and easy. By using compacted block geobag reinforced fillers and cement solidified slurry, an overall quality of the subgrade structure after backfilling can be ensured, and construction period and cost can be greatly reduced.
E02D 29/05 - Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
60.
METHOD FOR STRENGTHENING BIOLOGICAL MANGANESE OXIDATION USING MAGNETIC FIELD AND USE THEREOF
The present disclosure discloses a method for strengthening a biological manganese oxidation using a magnetic field and use thereof. The method includes steps of inoculating a manganese-oxidizing microorganism into a culture medium containing Mn2+, performing magnetization treatment in a culture process, and then collecting a biogenic manganese oxide. The method includes steps of performing a primary magnetic field treatment at a magnetic field intensity of 0.2-50 mT for 1-5 h when culturing is performed for 6-12 h, continuing culturing after the primary magnetization treatment, and performing magnetization treatment once every other 24 h for culture time of 72 h. A magnetic field is applied to accelerate an oxidation rate of a manganese-oxidizing microorganism to Mn2+and a biological manganese oxidation rate is respectively improved by 36.4% and 23.8% under an action of an alternating magnetic field or a constant magnetic field within 72 h.
A method and device for evaluating truck platooning strategy based on fuel saving rate is provided, which is applied to the technical field of transportation engineering, the method comprising: S1: obtaining the truck platooning strategy, and judging whether the truck platooning strategy has been determined; S2: when the truck platooning strategy has been determined, obtaining fuel-consumption-related parameters of each truck in the truck queue, calculating the fuel saving rate of each truck in the truck queue based on the obtained s parameters, calculating the average fuel saving rate of whole truck queue based on the fuel saving rate of each truck, and evaluating the truck platooning strategy based on the average fuel saving rate. The present disclose can evaluate the fuel economy in the case of different truck types and different platooning strategies.
G08G 1/00 - Traffic control systems for road vehicles
B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
The invention relates to a graph clustering method based on perception application algorithm semantics and a computer readable medium. The graph clustering method includes: acquiring original graph data G and a graph’s application algorithm A; initializing a subgraph Gi; randomly selecting a vertex v and a corresponding connecting edge thereof from the graph G, and deleting the v and the corresponding edge thereof from the graph G; computing a semantic serial degree after adding the vertex v into the subgraph Gi; determining a clustering block with the maximum semantic serial degree, and adding the vertex v and the corresponding connecting edge into the subgraph; repeating the steps until the graph G is empty; and completing graph clustering, and outputting a clustering result. Compared with the prior art, the method provided by the invention has the advantages of being able to greatly accelerate application analysis and mining of big graph data.
The present invention relates to a rapid anti-money laundering detection method based on a transaction graph, specifically comprising: S1, obtaining a transaction data stream, and constructing a directed graph structure to form a transaction graph; S2, performing preliminary determination on the transaction graph, stopping the transaction if the transaction graph is hit, or otherwise, sending the transaction graph to a graph neural network based on position information; S3, performing feature learning according to a transaction feature of each node, and aggregating for node features and full-graph features; S4, predicting a transaction between the nodes according to the node features and the full-graph features, if the transaction is a high-risk transaction, performing expert determination, sending a feedback result to a historical transaction database, and if the transaction is a low-risk transaction, recording a transaction result and sending same to the historical transaction database; and S5, the historical transaction database updating the network according to the transaction result. Compared with the prior art, the present invention has the advantages that the situation that the transaction changes along with time is fully considered, the transaction monitoring accuracy is improved, the potential social relation in the network is found, and the accuracy and the coverage rate of an anti-money laundering detection result are improved, etc.
G06Q 20/40 - Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check of credit lines or negative lists
The present invention relates to an online search method and device that accounts for relevance and difference, wherein the method comprises: determining an initial search result set according to a query request input by a user, and selecting a plurality of search results with the greatest degrees of difference from the initial search result set, as a final search result set. The specific process comprises: initially obtaining a plurality of candidate results according to the query request submitted by the user; using a semantic matrix to describe the attribute characteristics of documents corresponding to the candidate results; calculating similarities among the documents according to the attribute characteristics of the documents, and then clustering the candidate results into a plurality of cluster blocks; selecting a representative from each cluster block; and constructing the final search result set according to the selected representatives.
The present invention discloses a positioning and navigation method for automatic inspection of an unmanned aerial vehicle in a water diversion pipeline of a hydropower station, comprising: using a laser radar carried by an unmanned aerial vehicle (UAV) to scan the inside of a water diversion pipeline to obtain point cloud data; determining the central axis of the cylinder model; determining the foot point of the current position coordinate of the UAV in the central axis in a body coordinate system; calculating the actual speed of the UAV in a central axis coordinate system according to the distance change of central axes of two frames; and adjusting the attitude of the UAV according to the actual speed and the desired speed of the UAV. The present invention can adapt to pipeline environments with different bending degrees.
G06T 7/77 - Determining position or orientation of objects or cameras using statistical methods
G06V 10/762 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using clustering, e.g. of similar faces in social networks
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
B64C 39/02 - Aircraft not otherwise provided for characterised by special use
G06F 17/17 - Function evaluation by approximation methods, e.g. interpolation or extrapolation, smoothing or least mean square method
66.
MULTI-MEDIUM IMAGING ANALYTIC METHOD FOR UNDERWATER MEDIUM SURFACE POSITION COMPENSATION
The present invention relates to a multi-medium imaging analytic method for underwater medium surface position compensation. The method is used for compensating a medium surface position based on refraction theorem, specifically comprising: acquiring a refractive index and a thickness of each medium, computing a medium surface position compensation value according to an incident angle, and obtaining a virtual medium surface as a new medium surface to convert a multi-medium imaging analysis model into a double-medium imaging analysis model. Compared with the prior art, the method has the advantages of high feasibility, excellent stability, sub-millimeter accuracy, and the like.
A cross-domain cabin computing system and a cross-domain cabin computing method based on data resource distribution are provided, including: a cabin generation and management system obtains a data resource distribution map from a virtual data center system according to a cabin data and resource request, obtains a cross-domain resource directory from a cross-domain resource management system, and calculates a list of resource requirements of cabins; the cross-domain resource management system sends a resource request to a public cloud or a non-cloud resource to which resources belong based on the list of resource requirement of the cabins, and send information signaling that the resource request is successful to the cabin generation and management system to enable the cabin users to establish cabins based on cross-domain resources and data resources corresponding to the data resource distribution map, thereby realizing cabin computing.
The present application provides a polyimide resin, which is prepared by first complexing an aromatic diamine with crown ether and then copolymerizing same with an alicyclic dianhydride and an aromatic dianhydride, wherein the aromatic diamine comprises an aromatic diamine containing an amide bond. The Young's modulus of the polyimide resin is greater than or equal to 8 GPa, the elongation at break thereof is greater than or equal to 15%, and the tensile strength thereof is greater than or equal to 200 MPa. The present application further provides a thin film comprising the polyimide resin, a preparation method for the polyimide resin thin film, and a flexible device containing the thin film. In the polyimide resin of the present application, the crown ether is added to the main chain of the polyimide in a self-assembly manner, so that the mechanical strength of the polyimide resin is improved, and the polyimide resin has a high modulus, a high elongation at break, a high tensile strength, low haze and high transparency.
C08G 73/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
69.
High-Value Treatment System or Method for Urban Wet Garbage
University of Science and Technology Beijing (China)
Inventor
Chen, Yinguang
Zheng, Xiong
Zhang, Xuemeng
Chen, Chuang
Wang, Qunhui
Gao, Ming
Abstract
The present invention belongs to the field of treatment of urban organic wastes, and specifically relates to a high-value treatment system or method for urban wet garbage. According to the present invention, through the steps such as oil extraction, high-efficiency hydrolysis, high-value biological conversion, simultaneous recovery of released nitrogen and phosphorus and deep utilization of residues, urban wet garbage is converted into acetic acid by high-value treatment, produced by-products including carbon dioxide and hydrogen are biologically converted into acetic acid, released nitrogen and phosphorus are recycled into slow-release fertilizers, and solid residues are used to prepare materials capable of promoting conversion of the wet garbage into acetic acid through high-value treatment. According to the present invention, not only can high-value treatment of the urban wet garbage be realized, but also produced waste gases and waste residues are recycled.
THREE GORGES ENVIRONMENTAL TECHNOLOGY CO., LTD (China)
Inventor
Dong, Bin
Xiao, Tingting
Xu, Zuxin
Wu, Haibin
Wang, Dianchang
Li, Chong
Shen, Danni
Wang, Xiankai
Liu, Feng
Chen, Sisi
Abstract
Disclosed in the present invention are a method for preparing a sludge conditioner from water supply sludge and an application of the sludge conditioner. The conditioner is prepared by mixing water supply sludge and sewage sludge. The water supply sludge and the sludge from a sewage plant are mixed in proportion, a pore forming agent is added, the mixture is stirred uniformly, mechanical dehydration is performed, and then air drying, grinding, screening and pyrolysis are performed to obtain the sludge conditioner. The conditioner is used to condition sludge by means of advanced oxidation technologies such as catalyzing/activating ozone, persulfate, and Fenton, so as to enhance dehydration performance. In the present invention, sludge from a water supply plant and a sewage plant is used to prepare a sludge carbon-based conditioner having efficient catalysis performance and adsorption performance, and in combination with advanced oxidation chemical conditioning technologies, the conditioner efficiently enhances sludge dehydration performance, absorbs heavy metals, reduces the amount of the agent, saves the costs of subsequent sludge transportation and treatment, and achieves the collaborative recycling of multi-source sludge.
A steering wheel holding posture monitoring method and system based on triboelectric nanosensors. The method comprises the following steps: S1, providing a signal monitoring assembly, and when a driver holds a steering wheel, the signal monitoring assembly generating an electrical signal, wherein the signal monitoring assembly comprises a plurality of triboelectric nanosensors, and the triboelectric nanosensors are arranged on a rim of the steering wheel; S2, acquiring a holding posture of the driver, and collecting the electrical signal generated by the signal monitoring assembly when the driver holds the steering wheel, and storing same; S3, constructing a mapping relationship between electrical signals and holding postures according to a collected holding posture and electrical signal data; and S4, collecting, in real time, an electrical signal generated by the signal monitoring assembly when the driver holds the steering wheel and acquiring same in real time, and determining the current holding posture of the driver according to the mapping relationship.
The present disclosure provides a method and a system for modelling a poor texture tunnel based on a vision-lidar coupling. The method includes: obtaining point cloud information collected by a depth camera, laser information collected by a lidar, and motion information of an unmanned aerial vehicle (UAV); generating a raster map based on the laser information, and obtaining pose information of the UAV based on the motion information; obtaining a map model through fusing the point cloud information, the raster map, and the pose information by a Bayesian fusion method; and correcting a latest map model by feature matching based on a previous map model.
G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G01S 17/86 - Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
B64C 39/02 - Aircraft not otherwise provided for characterised by special use
B64U 20/87 - Mounting of imaging devices, e.g. mounting of gimbals
G05D 1/10 - Simultaneous control of position or course in three dimensions
73.
GRID TRACING AND CHECKING METHOD AND SYSTEM FOR RIVER SEWAGE OUTLET, AND STORABLE MEDIUM
A grid tracing and checking method and system for a river sewage outlet, and a storable medium, relating to the technical field related to river sewage discharge tracing. The method comprises specific steps of: dividing a river into multiple river segments; determining monitoring sites according to the river segments obtained from division; obtaining monitoring data of the monitoring sites, and performing calculation to obtain pollution determination data; determining a pollutant emission river segment according to upstream and downstream pollution determination data; and performing dense layout on the monitoring sites of the pollutant emission river segment, gradually narrowing the pollutant emission river segment, and determining the position of a pollutant emission port. According to the method, a river is divided into a plurality of river segments, soft measurement-based grid tracing and checking of a river sewage outlet is carried out, a river segment where sewage discharge is present can be effectively determined by means of online monitoring data of conductivity and a liquid level, and a calculation method is accurate and convenient, such that the problem that a hidden underwater sewage outlet is difficult to identify by using conventional methods such as manual on-foot checking, and aerial survey by an unmanned aerial vehicle is solved.
A grid-based source-tracing method and system for sewage outfalls and a storage medium are provided. The method specifically includes the steps of: dividing a river into multiple reaches; determining monitoring sites according to the divided reaches; acquiring on-line monitoring data of each of the monitoring sites, and calculating soft measurement data; determining a river reach with sewage outfalls according to upstream and downstream soft measurement data; and intensively arranging monitoring sites in the river reach with sewage outfalls to subdivide the river reach with sewage outfalls, thereby determining a position of a sewage outfall. The method divides the river into multiple reaches and performs the grid-based source-tracing for the sewage outfall of the river gradually. In real practice, with online conductivity and water level monitoring data, the method can effectively determine the river reach with sewage outfalls using soft measurement.
Provided are an anaerobic immobilized bacterial agent, a preparation method for same, and applications thereof. The preparation method for the bacterial agent is: selecting four different anaerobic functional bacterial strains, utilizing a pure bacteria culturing technique to produce corresponding culture broths, then mixing the four culture broths according to a certain volume ratio to acquire a compound functional broth, subsequently concentrating into a functional flora precipitation, then dissolving the functional flora precipitation into a polyvinyl alcohol aqueous solution, dripping the solution into a first buffer solution to produce polyvinyl alcohol gel beads, and placing the gel beads produced into a second sulfate-containing buffer solution to produce sulfate-modified polyvinyl alcohol gel beads, that is, the anaerobic immobilized bacterial agent.
Shanghai Urban Pollution Control Engineering Research Center Co., Ltd. (China)
Inventor
Dai, Xiaohu
Li, Lei
Chen, Yongdong
Liu, Haoyu
Cai, Chen
Abstract
An MEC reactor system for strengthening anaerobic digestion is provided. The MEC reactor system includes a reactor module; multiple biological anode plates and multiple biological cathode plates which are arranged in the reactor module; and an automatic control power supply. An anode and a cathode of the automatic control power supply are respectively connected with anode area wires and cathode area wires, the anode area wires are electrically connected with the biological anode plates, and the cathode area wires are electrically connected with the biological cathode plates. The biological anode plates and the biological cathode plates are subjected to biofilm culturing and acclimation in a biological anode plate acclimation area and a biological cathode plate acclimation area respectively; and in an anaerobic digestion reaction area, anaerobic digestion is strengthened based on the biological anode plates and the biological cathode plates which complete biofilm culturing acclimation.
A system for precision displacement measurement based on a self-traceable grating interference includes a coherent light source, a photoelectric detection module, a self-traceable grating and a signal processing module. The self-traceable grating is arranged on a to-be-measured displacement motion platform. The coherent light source, the photoelectric detection module and the signal processing module are sequentially connected. Laser generated by the coherent light source propagates through the photoelectric detection module and is incident on the self-traceable grating, diffracts with the self-traceable grating, returns to the photoelectric detection module to continue propagating and enters the signal processing module. The signal processing module collects an interference signal to obtain a motion displacement and a motion direction.
The present invention relates to an MPC-based hierarchical coordinated control method and device for a wind-hydrogen coupling system. The method comprises the following steps: (1) dividing the wind-hydrogen coupling system into upper-layer grid-connected control and lower-layer electrolytic cell control; (2) controlling grid-connected power to track a wind power prediction curve by adopting an MPC control algorithm for upper-layer grid-connected control, and obtaining an electrolytic cell power control quantity for the lower-layer electrolytic cell control at the same time; (3) dividing operation states of electrolytic cell monomers into four operation states of rated power operation, fluctuating power operation, overload power operation and shutdown; and (4) determining the operation states of various electrolytic cell monomers by adopting a time-power double-line rotation control strategy based on the electrolytic cell power control quantity, thus making the electrolytic cell monomers operate in one of the four operating states in turn.
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
79.
METHOD FOR CONTROLLING HEAVY METAL SCOURING POLLUTION IN MINES BY USING HUMIFIED PRODUCT
The present application is related to a method for controlling heavy metal scouring pollution in mines by using a humified product, which comprises steps of: (1) carrying out mixed fermentation on sludge and hyperthermophiles to breed polar humified groups, and then carrying out mixed fermentation on the fermented material and a native material of humus precursors to induce massive production of humus until the humus content reaches a required standard; and (2) mixing and maintaining the humified product of the sludge reaching the standard with mine soil polluted by heavy metals to remedy the polluted mine.
A Helmholtz resonator and a low-frequency broadband sound-absorbing and noise-reducing structure based on the same is provided. The Helmholtz resonator includes a Helmholtz resonator body, at least one embedded tube is disposed in the Helmholtz resonator body, and an inner surface of an opening of the Helmholtz resonator body wraps around an outer side of one of the embedded tubes; and all the embedded tubes are not in contact with each other. The low-frequency broadband sound-absorbing and noise-reducing structure includes a rigid framework, and at least two Helmholtz resonators are disposed in parallel in the framework. The Helmholtz resonator not only achieves a better low-frequency broadband sound absorption and noise reduction effect, but also reduces a thickness of the Helmholtz resonator more effectively. The low-frequency broadband sound-absorbing and noise-reducing structure enhances a sound absorption effect of each weak sound-absorbing Helmholtz resonator, and further achieves more efficient sound absorption.
Provided are novel heterocyclic derivatives with cardiomyocyte proliferation activity for treatment of heart diseases. Specifically, provided are the compounds of formula (I) or pharmaceutically acceptable salts, stereoisomers, solvates or prodrugs, preparation method thereof, application thereof and pharmaceutical composition useful for treatment of heart diseases.
C07D 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 403/06 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
C07D 401/06 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 401/14 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
C07D 413/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 409/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
A61P 9/10 - Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
C12N 5/077 - Mesenchymal cells, e.g. bone cells, cartilage cells, marrow stromal cells, fat cells or muscle cells
82.
METHOD AND DEVICE FOR PREPARING GRAPHENE AND HYDROGEN GAS BY CONVERTING WASTE PLASTICS WITH JOULE HEAT
A method and a device for preparing graphene and hydrogen gas by converting waste plastics with Joule heat are provided according to the present application. The method uses the Joule heat generated when a strong current passes through the mixed plastic material mixed with conductive additive, as the reaction driving energy. By Joule heating, carbon-carbon bonds and carbon-hydrogen bonds are broken, amorphous carbon is converted into sp2 hybridized high-purity graphene, and hydrogen atoms are converted into hydrogen gas. The reaction device used by the method is mainly composed of three parts: an airtight reaction chamber, a gas collecting system and a power control system.
The present invention provides a method of enhancing continuous directional high-value biological conversion of an urban wet garbage open system. The method includes wet garbage crushing, low-energy consumption hydrolysis, continuous conversion of organic components of wet garbage into short-chain fatty acid, continuous directional conversion of other components of short-chain fatty acid into acetic acid, separation and microbial reflux of acetic acid, and the like. In this method, by crushing wet garbage, performing low-energy consumption hydrolysis, and seeding acclimatized activated sludge, two stages of anaerobic fermentations are carried out to firstly convert organic components of the wet garbage continuously into short-chain fatty acid, and then continuously and directionally convert other components of short-chain fatty acid into acetic acid, so as to realize continuous directional high-value biological conversion of the urban wet garbage in an open system without adding pure microbes and a large amount of chemicals.
A method for determining NOx sensor data falsification based on remote emission monitoring, includes the steps of: acquiring a plurality of vehicle data sets and urea level data of to-be-tested reference vehicles, wherein vehicle data include NOx sensor readings and corresponding engine data vectors; acquiring urea level data of reference vehicles; calculating standard urea consumption per kilometer; (2) acquiring an average distribution probability of the vehicle data of the to-be-tested vehicles through a probability distribution evaluation step; counting a total proportion of invalid or negative NOx sensor readings in the plurality of vehicle data sets; determining whether the data of the to-be-tested vehicles satisfy one or more falsification conditions; if so, determining that the data from the NOx sensors of the to-be-tested vehicles are falsified; otherwise, determining that the data from the NOx sensors of the to-be-tested vehicles are not falsified.
Disclosed is a method for recovering phosphorus from sludge rich in chemical phosphorus precipitates using a high-protein biomass waste, comprising introducing the sludge rich in chemical phosphorus precipitates into an anaerobic fermenter, adding a certain amount of a high-protein biomass by-product, sealing the fermenter and fermenting for 4-7 days. The method can effectively increase the phosphorus release efficiency from the sludge, and also generate volatile short-chain fatty acids and ammonia nitrogen in high concentrations. After dewatering, phosphorus and part of ammonia nitrogen can be recovered in a form of high-purity struvite crystals only by addition of a magnesium salt and adjustment of pH to 7.5-9.0. The volatile short-chain fatty acids can be used as an economical carbon source. The method allows simultaneous utilization of two solid wastes to recover carbon, nitrogen and phosphorus resources, and can reduce the usage of chemical reagents, saving the treatment cost.
The present invention relates to a method for asynchronously storing massive data generated during high speed video measurement, the method including the following steps: step (1), constructing a high speed video measurement hardware model; and step (2) realizing asynchronous I/O real-time storage in a high speed solid state disk on the basis of Windows core programming. Compared with the prior art, the present invention solves the problems of incompleteness or frame drop during real-time storage of massive data, and realizes real-time and lossless storage of massive high speed data.
Disclosed in the present invention are a polymer-modified magnetic nanomaterial, and a preparation method therefor and the use thereof. Provided in the present invention is a method for preparing the polymer-modified magnetic nanomaterial. The method comprises the following steps: under an inert atmosphere and in the presence of plasma glow, heating a mixture of the polymer and a solvent to obtain an atomized form, and modifying the magnetic nanomaterial with same to obtain the polymer-modified magnetic nanomaterial. The polymer-modified magnetic nanomaterial provided in the present invention has a high polymer modification amount and a good stability, can be used in the enrichment and separation of a glycosylated protein, a polypeptide substance, a nucleic acid, a circulating tumor cell, an exosome, etc., has a fast response time, and can, for example, be used for the preparation of a drug or reagent for capturing the circulating tumor cell in body fluids, such as peripheral blood/urine.
An alternating cascaded system for high-salinity wastewater treatment includes a pollutant removal system and an alternating cascaded water conveyance system embedded in the pollutant removal system. The pollutant removal system includes four partition plates, a pollutant removal zone and a discharge sump; and the alternating cascaded water conveyance system includes feed water distribution channels disposed under a feed water conveyer pipe and on an outer wall of a first pollutant removal subzone, cleaning water distribution channels disposed on an outer wall of a third pollutant removal subzone and located under a cleaning water pipe, and a purified water discharge pipe and a cleaning water discharge pipe that are located in the discharge sump and axially have a same discharge direction from top to bottom.
B01D 15/22 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the construction of the column
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
C02F 1/00 - Treatment of water, waste water, or sewage
B01D 29/03 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups ; Filtering elements therefor with flat filtering elements self-supporting
B01D 15/20 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the sorbent material
89.
Image encoding and decoding methods, image processing device, and computer storage medium
Disclosed are an image encoding and decoding method, image processing device, and computer storage medium. the image coding method includes: when copying coding is performed on a current coding block by using one of the at least two different palette and pixel string copying coding manners, generating a new palette color according to pixels of the current coding block; generating a palette for the current coding block according to the new palette color and a palette color candidate set shared by the at least two different palette and pixel string copying coding manners; and performing palette and pixel string copying coding by using the palette for the current coding block, and generating a video bitstream comprising a copying manner and a copying parameter.
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
H04N 19/182 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
H04N 19/17 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
A high salinity wastewater treatment system is provided according to the present application, which includes a hydrogel loading system and a flow-storage different-oriented-inlet-and-outlet system. The hydrogel loading system includes six separation plates, a wastewater treatment area, a water distribution bin, a rotating shaft, a driving motor and a fixed bracket. The six separation plates evenly separate the wastewater treatment area into six separate treatment sectors in an axial direction. The six separate treatment sectors are filled with hydrogel materials with water purification effect. The high salinity wastewater infiltrates into each separate treatment sector one by one through high salinity wastewater inlet meshes on a surface of the wastewater treatment area, and the purified high salinity wastewater is discharged through a wastewater cleaning outlet pipe with a same water inlet direction as a cleaning filler distribution pipe.
C02F 1/00 - Treatment of water, waste water, or sewage
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01D 15/14 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the introduction of the feed to the apparatus
B01D 15/18 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
A novel function-recoverable prefabricated seismic shear wall structure with replaceable components, which includes main structural components, connecting components and replaceable components. All components are connected by bolts or pins. The connections can provide sufficient strength to effectively connect adjacent upper and lower wall panels, or wall panel and coupling beam, together. The replaceable components are installed in the bottom region of the wall and coupling beams, which provide sufficient bearing capacity and stiffness for the building structure under service loads and dissipate seismic energy under the earthquake. The damage concentrates on the replaceable components which could be easily replaced after a strong earthquake so that the function of the building structure could be quickly restored. In addition, the replaceable components with different energy-dissipation mechanisms facilitate the shear wall structure to have multiple seismic fortification lines, and improve the seismic performance of the building structure.
E04B 2/58 - Walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
E04B 1/04 - Structures consisting primarily of load-supporting, block-shaped or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
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
E04C 3/293 - Joists; Girders, trusses, or truss-like structures, e.g. prefabricated; Lintels; Transoms built-up from parts of different materials the materials being steel and concrete
E04C 5/16 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
92.
CONSTRUCTING METHOD ON INTELLIGENT NETWORKED MANUFACTURING MODE WITH HUMAN-CYBER-PHYSICAL COLLABORATION AND FUSION FOR NON-FERROUS METAL INDUSTRY
The present invention relates to a constructing method on the intelligent networked manufacturing mode with human-cyber-physical collaboration and fusion for a non-ferrous metal industry. According to transformational requirements of a non-ferrous metal industry, production and manufacturing activities are guided by constructing an intelligent manufacturing system with human-cyber-physical collaboration and fusion, an ecosystem service platform, and a sustainable business model. The intelligent manufacturing system with human-cyber-physical collaboration and fusion includes a device autonomous control system and a remote management analysis and decision-making system based on a new generation of AI. The device autonomous control system has functions of perception, intelligent analysis and decision-making, and intelligent control. The remote management analysis and decision-making system has functions of ubiquitous perception, real-time analysis, independent decision-making, and learning improvement.
G06Q 10/06 - Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
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
Disclosed is an unmanned aerial vehicle (UAV) positioning method based on a millimeter-wave radar, including a calibration stage and a positioning stage. The calibration stage includes: acquiring ground coordinates of the unmanned aerial vehicle; and extracting feature points from radar point cloud data and get the ground coordinates of the feature points. The positioning stage includes: acquiring radar point cloud data of a current frame and pre-processing; acquiring UAV motion data and fuse the data with radar point cloud data; extracting characteristic line segment from radar point cloud data; registering the characteristic line segment of the current frame with the characteristic line segment of the previous frame, and finding matching feature points and newly added feature points; and obtaining the ground coordinates of UAV and the ground coordinates of newly added feature points based on the ground coordinates of matched feature points on the map.
An unmanned aerial vehicle positioning method based on a millimeter wave radar, comprising a calibration stage and a positioning stage. The calibration stage comprises: acquiring ground coordinates of an unmanned aerial vehicle; and extracting feature points in radar point cloud data and obtaining ground coordinates of the feature points. The positioning stage comprises: acquiring radar point cloud data of a current frame and preprocessing same; acquiring motion data of the unmanned aerial vehicle and fusing same with the radar point cloud data; extracting a feature line segment in the radar point cloud data; registering the feature line segment of the current frame with the feature line segment of the previous frame to find matched feature points and newly added feature points; and obtaining the ground coordinates of the unmanned aerial vehicle and the ground coordinates of the newly added feature points on the basis the ground coordinates of the matched feature points on a map. According to the method, feature point matching is performed on the basis of the point cloud data of the millimeter wave radar for positioning, so that the positioning precision is high; the millimeter wave radar can reduce the load of the unmanned aerial vehicle, improve the positioning precision of the unmanned aerial vehicle, and realize all-weather and all-time unmanned aerial vehicle positioning.
G01S 13/42 - Simultaneous measurement of distance and other coordinates
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
95.
TUNNEL DEFECT DETECTING METHOD AND SYSTEM USING UNMANNED AERIAL VEHICLE
Tunnel defect detecting method and system using unmanned aerial vehicle (UAV) are provided, and the UAV is equipped with a light-emitting diode (LED) module, a camera, a laser radar, an ultrasonic distance meter and an inertial measurement unit (IMU). The method includes: collecting images in a tunnel based on the LED module and the camera to obtain a training image set; training by using the training image set to obtain a defect detecting model, collecting real-time tunnel images, detecting suspected defects to the real-time tunnel images by the defect detecting model, obtaining pose information of the UAV based on the camera, the laser radar, the ultrasonic distance meter and the IMU to control the UAV to hover. The method can realize accurate pose estimation and defect detection in the tunnel with no GPS signals and highly symmetrical inside.
The present invention relates to a vehicle data communication and interaction system and a construction method thereof. The system includes a first test vehicle placed in an environment perception test platform and a second test vehicle placed in a rotating hub test platform, an i-ECU, a VCU, and a vehicle bottom electronic control unit that are communicatively connected with each other are mounted on each of the first test vehicle and the second test vehicle, and a sensor is further mounted on the first test vehicle. The first test vehicle is communicatively connected to the second test vehicle, and specifically, the VCU or a network gateway is connected via the sensor, to implement a communication connection between the two test vehicles. Accordingly, the complexity of the connection with the VCU can be simplified, and real-time efficiency data interaction between two test vehicles may be implemented, so that the test vehicle has complete full vehicle performance and a real-time operation response.
Disclosed in the present invention is an adaptive communication method for a networked machine learning system. The networked machine learning system comprises a plurality of agents. The method comprises: initializing a network topology between agents, such that the agents are connected by means of a communication link; for any agent, an agent directly connected to the agent by means of the communication link being an adjacent agent; in each time step, the agent exchanging communication information with the adjacent agent by means of the communication link in the active state, and calculating a probability value that the communication link between the agent and the adjacent agent is in the active state in the next time step according to a difference between the communication information latest exchanged between the agent and the adjacent agent, and determining whether the communication link is in the active state in the next time step according to the probability value. By means of the adaptive communication method, the total communication cost can be reduced while the training effect is maintained.
The present invention relates to an automatic hemostasis pressing device, which comprises a bracket module, a transmission module, an arm pressing module and an arm supporting module. The bracket module comprises a base and an annular track frame; the annular track frame is vertically arranged on the base; the arm pressing module and the arm supporting module are respectively arranged at the top and bottom parts of the annular track frame, and can be stretched up and down in the annular track frame; the transmission module comprises two transmission units symmetrically arranged at two sides of the annular track frame; each transmission unit comprises a sliding block, a first connecting rod and a second connecting rod; the sliding blocks are arranged on a track of the annular track frame; two ends of the first connecting rods are respectively rotatably connected to the sliding blocks and the arm pressing module; and two ends of the second connecting rods are respectively connected to the sliding blocks and the arm supporting module. Compared to the prior art, the present invention achieves pressing and locking by means of a pure mechanical structure and performs hemostatic pressing, and a patient only needs to place an arm therein. The operation is quick and convenient.
A61B 17/12 - Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
Provided are a heterogeneous graph-based text summarization method and apparatus, a storage medium, and a terminal. The method comprises: performing knowledge fusion on a preset knowledge base and a target text, obtaining word features and sentence features of the target text, and constructing a text heterogeneous graph of the target text on the basis of the word features and the sentence features (S101); updating the text heterogeneous graph by means of a graph attention network according to an edge weight and an attention weight so as to obtain an updated text heterogeneous graph (S102); calculating the multi-class abstract indexes of sentence vectors in the updated text heterogeneous graph, and according to the multi-class abstract index corresponding to each sentence vector, calculating a classification weight of the corresponding sentence vector (S103); and separately weighting the sentence features in the updated text heterogeneous graph according to the classification weights of the sentence vectors, obtaining a corresponding sentence label according to the weighted sentence features, and generating a text abstract according to the obtained sentence label (S104). The sentences and the words serve as two types of nodes to constitute the heterogeneous graph, and the word nodes serve as the intermediaries of the sentence, and thus, the association between the sentences is enriched and information is indirectly transmitted.
A prediction method based on a non-intrusive attention preprocessing process and a BiLSTM model. A deep learning model enhanced by a non-intrusive attention mechanism is used for long-term energy consumption prediction, consists of an attention mechanism-based preprocessing model and a universal BiLSTM network, and is called as AP-BiLSTM. The attention mechanism-based preprocessing model is completed by the dot product of a convolutional layer and a fully connected layer. The two layers perform feature mapping of the original input data, which is critical to improve the performance of an AP-BiLSTM method. By means of the manner, both local and global associations in the long-term dependency of the input data are enhanced. The method comprises the following steps: S1: performing a non-intrusive data preprocessing process; and S2: inputting the result in S1 into the BiLSTM network model to obtain a final prediction result.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
patents
