The present disclosure provides an engineered microorganism capable of biologically producing aromatic amino acids, wherein the engineered microorganism has reduced production of unwanted byproducts and/or increased yield or conversion rate of aromatic amino acids. Also provided are methods for preparing and of using the engineered microorganism, including a method for producing aromatic amino acids.
Disclosed in the present invention is a sensor network-based weighted fusion distributed target tracking method, comprising the following steps: establishing a collaborative network, the collaborative network comprising a plurality of aircrafts, and the plurality of aircrafts being in communication connection with each other; setting a target motion model and an observation model, and establishing a fusion measurement model; on the basis of the fusion measurement model, the aircrafts fusing information received during a communication process and, in light of target state quantities measured by themselves, obtaining calibration target state quantities; and, on the basis of the obtained calibration target state quantities, each aircraft performing navigation tracking on a target. The sensor network-based weighted fusion distributed target tracking method disclosed in the present invention more accurately estimates target state quantities with smaller estimation errors.
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
3.
PHOTOELECTRIC-THERMOELECTRIC-PIEZOELECTRIC COUPLED HYBRID ENERGY HARVESTING APPARATUS
A photoelectric-thermoelectric-piezoelectric coupled hybrid energy harvesting apparatus includes a housing, a photoelectric-thermoelectric energy harvesting apparatus, and a piezoelectric energy harvesting apparatus. The housing is configured to support and accommodate the photoelectric-thermoelectric energy harvesting apparatus, the piezoelectric energy harvesting apparatus, and a heat dissipation plate. The photoelectric-thermoelectric energy harvesting apparatus is respectively arranged on five surfaces of the housing to implement reciprocally coupled harvesting of solar energy and thermal energy in a working environment. The piezoelectric energy harvesting apparatus is arranged on a right side surface of an interior of the housing to implement reciprocally coupled harvesting of thermal energy and mechanical energy in the working environment. With the use of the photoelectric-thermoelectric-piezoelectric coupled hybrid energy harvesting apparatus, reciprocal harvesting of solar energy, thermal energy, and mechanical energy that widely exist in nature can be realized, thereby breaking through the simple “1+1” implementation mode of multi-source energy harvesting.
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
H10N 10/10 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
The present disclosure provides a ubiquitous energy fusion and harvesting system, formed into a hexahedron by splicing light-heat-radio frequency (RF) fusion energy-harvesting devices, light-heat-kinetic-RF fusion energy-harvesting devices, and a heat-dissipating circuit board. The system can adapt to multi-directional and all-time solar energy harvesting, and multi-band and omnidirectional RF energy harvesting, avoiding insufficient output of electric energy in a harsh environment of single energy harvesting. In the present disclosure, a solar cell sheet serves to provide a heat source for a temperature difference power generation sheet, and a piezoelectric power generation array serves as a cooling fin to cool the temperature difference power generation sheet, realizing a multi-source ubiquitous energy composite harvesting and conversion with mechanism fusion and spatial mutual benefit.
A hybrid energy harvesting apparatus for harvesting omnidirectional multi-band radio frequency (RF) energy and thermoelectric energy includes a housing, an RF harvesting apparatus, a thermoelectric harvesting apparatus, and an energy storage apparatus. The housing is a hollow polyhedron. The thermoelectric harvesting apparatus includes a thermoelectric sheet applied to an outer side surface of the housing and a thermoelectric conditioning circuit mounted in the housing. The thermoelectric sheet is configured to harvest thermal energy and convert the thermal energy to electrical energy. The RF harvesting apparatus includes a multi-band two-dimensional antenna array tightly attached to the thermoelectric sheet and an RF-DC conditioning circuit mounted in the housing. A multi-band two-dimensional antenna in the multi-band two-dimensional antenna array is configured to harvest RF energy and convert the RF energy to electrical energy and dissipate heat from the thermoelectric sheet. The RF-DC conditioning circuit is connected to the multi-band two-dimensional antenna.
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
H02N 11/00 - Generators or motors not provided for elsewhereAlleged perpetua mobilia obtained by electric or magnetic means
6.
EXTERNAL ROTATION 3D LIDAR DEVICE AND SIMULTANEOUS LOCALIZATION AND MAPPING (SLAM) METHOD THEREOF
An external rotation 3D lidar device and a simultaneous localization and mapping (SLAM) method comprises a 3D hybrid solid-state lidar device that is driven to rotate by an external motor. The device significantly improves the horizontal field of view of the lidar and can be mounted on a ground robot to comprehensively improve its 360-degree environment sensing capabilities. Error-state Kalman filtering and pose graph optimization are combined and the overall framework is divided into two parts: front-end odometry and back-end loop-closure optimization. Therefore, high-frequency odometry that meets the requirements of the robot can be output in real time and cumulative errors can be eliminated through the back-end loop-closure optimization.
The present disclosure belongs to the field of flexible job shop scheduling, and relates to a dual-effect scheduling method for heterogeneous robots in a flexible job shop. In a case of strong coupling of processing and transferring, this method comprehensively considers such constraints on selection of flexible manufacturing cells (FMCs), transferring time by automatic guided vehicles (AGVs) and processing resource waste, and improves encoding schemes and genetic operators with order completion time and minimization of resource consumption as evaluation criteria. Additionally, this method can fully apply environmental characteristics of job shop to scheduling design, and automatically design more precise scheduling schemes, overcoming the deficiencies of slow response and prone to local optimal solutions existing in conventional scheduling schemes, and ensuring efficient and green operation.
Disclosed in the present invention is an unmanned aerial vehicle formation cooperative obstacle avoidance method based on distributed model predictive control. The method comprises the following steps: establishing an unmanned aerial vehicle motion model to predict a control state of a single unmanned aerial vehicle; on the basis of the unmanned aerial vehicle motion model and control objectives of reaching a target state and maintaining formation, establishing a cost function; setting a constraint, updating the control state in a prediction time domain under the condition that the cost function is minimum, and obtaining the control state of each unmanned aerial vehicle in a subsequent period of time; and each unmanned aerial vehicle flying in the subsequent period of time on the basis of the control state, so as to realize cooperative obstacle avoidance. The unmanned aerial vehicle formation cooperative obstacle avoidance method based on distributed model predictive control disclosed in the present invention has the advantages of high stability, low operation amount, low delay and the like.
Provided is a dual-mode compressor. The dual-mode compressor includes a first scroll plate (31), a second scroll plate (32), and an impeller (33). The first scroll plate (31) and the second scroll plate (32) define a scroll compression working cavity (3a), and the impeller (33) defines a centrifugal compression flow channel (33d). The impeller (33) and the second scroll plate (32) are fixed relative to each other and are arranged coaxially, and the inlet of the centrifugal compression flow channels (33d) is communicated with the outlet of the scroll compression working cavity (3a). Under a larger flow and high compression ratio, the dual-mode compressor can work in the scroll-centrifugal compression mode, so that working medium leaving the scroll compression working cavity (3a) can enter the centrifugal compression flow channel (33d) and then flow out of the dual-mode compressor, thereby solving the problem of low efficiency of a scroll compressor at high compression ratio and the inability of centrifugal compressors to compress gas-liquid mixed working medium. Alternatively, under a low flow condition, the dual-mode compressor can work in the scroll compression mode, so that working medium leaving the scroll compression working cavity (3a) can directly flow out of the dual-mode compressor, thereby solving the problem of low efficiency and instability of a centrifugal compressor at a low flow condition.
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F04D 17/10 - Centrifugal pumps for compressing or evacuating
The provided is a helmet for mental state regulation. The device includes: a helmet, an electroencephalogram (EEG) acquisition module set to the helmet, a signal analysis module, a vagus nerve stimulation module and a vagus nerve stimulation ear clip; the EEG acquisition module is used to acquire an EEG signal of a target user in real time, and preprocess the acquired EEG signal; the signal analysis module is used to extract features of the preprocessed EEG signal, and the extracted EEG features are input into a mental state assessment model to obtain a mental state value of the target user; the vagus nerve stimulation module is used to determine stimulation parameters of the vagus nerve stimulation ear clip according to the mental state value of the target user, and adjust the stimulation parameters adaptively and dynamically by obtaining the EEG features in real time.
A device for refining ethanol is disclosed, which includes a fermentation unit, a low-pressure column, a medium-pressure column, a high-pressure column and a membrane separation unit. A method for refining ethanol is disclosed, which specifically includes the following steps: after fermenting the biomass feedstock, feeding fermented mash into a low-pressure column and a high-pressure column which are connected in parallel for refining, mixing two column top distillates, and feeding the mixed column top distillates into a medium-pressure column for further rectification; and purifying the refined ethanol vapor with higher purity obtained after rectification in the medium-pressure column by a membrane separation unit to obtain high-concentration ethanol product vapor. The disclosure couples the differential pressure rectification and the membrane separation unit, adjusts the energy network structure, greatly reduces the vapor usage amount of the whole system, and has the advantages of good separation effect, high product quality and the like.
A method, system and apparatus for recognizing continuous driving style are provided, which involve the intelligent vehicles field. The method comprises: collecting multi-dimensional driving data from a plurality of drivers in daily driving scenarios, segmenting the driving data to obtain a plurality of driving segments, calculating statistical features of each driving segment to determine high-dimensional continuous driving statistical features, reducing dimensionality of the driving statistical features to generate common factors for each driving segment, representing each driving segment with a driving word based on the common factors, representing all the driving segments of a target driver as a driving word sequence, constructing a hierarchical latent model of driving behavior, and inputting the driving word sequence into the hierarchical latent model of driving behavior to determine the continuous driving style of the target driver.
Provided are a method, system and device for global path planning for an unmanned vehicle in an off-road environment. The method includes: obtaining satellite elevation data and a satellite remote sensing image of a current off-road environment; constructing a digital elevation model (DEM); determining slope and land surface relief of each grid in the current off-road environment; performing gray processing on the satellite remote sensing image to obtain grayscale values of the grids; determining traversal costs of the grids corresponding to different ground types; constructing a global grid map based on the slope and the land surface relief of each grid, as well as the traversal costs corresponding to the different ground types; determining a rugged terrain potential field and path costs; and searching for paths using a Bresenham's line algorithm and Theta* algorithm based on the rugged terrain potential field and the path costs, to generate a global path.
G06V 10/50 - Extraction of image or video features by performing operations within image blocksExtraction of image or video features by using histograms, e.g. histogram of oriented gradients [HoG]Extraction of image or video features by summing image-intensity valuesProjection analysis
G05D 1/246 - Arrangements for determining position or orientation using environment maps, e.g. simultaneous localisation and mapping [SLAM]
G05D 1/644 - Optimisation of travel parameters, e.g. of energy consumption, journey time or distance
An optical communication method and system with high spectral efficiency and low power consumption based on joint channel coding modulation relates to the technical field of high-speed fiber communication. The method includes a data acquisition step, a symbol multiplexing joint channel coding modulation step, a signal optical communication step, a channel equalization step, and a symbol demultiplexing step. The optical communication method and system improves the problems of relative independence of forward error correction channel coding (FEC) and high order modulation function modules, long code length dependence of FEC, limited spectral efficiency promotion under the limitation of fiber nonlinear effect, and high FEC decoding latency and power consumption in optical communication system. It is beneficial to improving the spectral efficiency and capacity of a coherent optical communication system and optimizing the system latency and power consumption.
Provided are an anomaly detection method and system for multi-source heterogeneous data, an electronic device, a vehicle, a computer-readable storage medium, a computer program product, and a computer program. The method comprises: performing statistical modeling on multi-source heterogeneous data, and obtaining background distribution features of multi-source heterogeneous data distribution through a data splitting method; preprocessing the background distribution features by using a preset sliding window to obtain a background image sequence on a specific time series; on the basis of the size of a target in the background distribution features, performing adaptive partitioning on the background image sequence to obtain an adaptive partitioning result, and identifying single source points of each partition in the adaptive partitioning result through a decoupling representation method; and on the basis of the identified single source points, determining the location of anomalous data in the background image sequence, and on the basis of a comparison calculation result of the multi-source heterogeneous data and the background image sequence from which the anomalous data is removed, obtaining an anomalous data location of the multi-source heterogeneous data.
The embodiments of the present disclosure provide a carbide-free tempered martensitic steel and a preparation method thereof. The carbide-free tempered martensitic steel includes a martensite matrix without carbide and a retained austenite distributed between the martensite matrix obtained after tempering or partitioning. A size of retained austenite is submicron or nanoscale, a morphology of retained austenite includes at least one of sphere, block, or film, and a volume fraction of the retained austenite is in a range of 10%-40%.
An intrinsic-safety explosive disposal and protection device is incapable of causing secondary damage itself during excessive explosion or extreme conditions and capable of realizing efficient absorption for energy from explosion shock waves. The device includes an explosion-proof top cover, a support plate, an explosion-proof material filling layer and an explosion-proof drum; the explosion-proof drum is of a drum body structure having openings in two ends; the explosion-proof top cover is disposed on a top opening of the explosion-proof drum; the support plate is supported inside the explosion-proof drum, a height of the support plate in the explosion-proof drum is adjustable, and an area located below the support plate in the explosion-proof drum is a placing area for the explosive. An explosion-proof material is filled between the support plate in the explosion-proof drum and the explosion-proof top cover to form the filling layer. Use of the device is also provided.
2m-12m2m and cooperative transmission diversity gain; processing echo signals received by a first base station and a second base station to acquire observation information of the first base station and the second base station for the unmanned aerial vehicle; implementing multi-base station cooperative tracking and trajectory prediction of the unmanned aerial vehicle by using an extended Kalman filter method; and the base stations uploading observation parameters to a control center by means of fronthaul links, and the control center fusing sensing results of the multiple base stations and performing tracking and prediction on the trajectory of the unmanned aerial vehicle by using the extended Kalman filter method.
Disclosed is a method for designing a gradient minimal surface structure based on a surface density distribution. The method comprises initializing pending parameters of a two-dimensional surface equation and a minimal surface equation in a system; generating a plurality of pending parameter sets based on initial values and preset ranges of the pending parameters of the two-dimensional surface equation and the minimal surface equation using a CSPRNG; establishing a plurality sets of two-dimensional surface equations and a plurality sets of minimal surface equations; establishing a plurality of gradient structure equations; generating a plurality of three-dimensional models of minimal surface structures; making a plurality of gradient structure specimens by an additive manufacturing technique; obtaining a plurality sets of structure stress-strain curves and force-displacement curves by performing a test; calculating a platform stress and an energy absorption of the plurality of gradient structure specimens; and determining target structure types to realize an optimized design of the gradient minimal surface structure based on the surface density. The mechanical response stability and the energy absorption performance of the minimal surface structures can be improved.
Disclosed in the present invention is an erythromycin derivative as shown in formula I. It is proved that the erythromycin derivative has a good inhibitory effect on various pathogenic microorganisms such as streptococcus pneumoniae, streptococcus pyogenes, haemophilus influenzae, staphylococcus aureus, moraxella catarrhalis, mycoplasma or chlamydia; and the inhibitory effect is significantly better than that of clarithromycin, telithromycin, azithromycin and ciprofloxacin. In addition, the series of compounds have a simple preparation method, and therefore have certain prospects for industrial synthesis preparation.
C07H 17/08 - Hetero rings containing eight or more ring members, e.g. erythromycins
C07H 1/00 - Processes for the preparation of sugar derivatives
A61K 31/706 - Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom
A61K 31/7048 - Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin
A method for preparing a composite solid electrolyte with a soft filler is provided. The soft filler is obtained by converting nanocellulose particles into lithiated cellulose, and it is a transparent cement-like composite material, and has lithium ion transfer and anion molecular sieve functions. The composite solid electrolyte is obtained by mixing a solvent, a polymer, a lithium salt and a lithiated cellulose. The lithiated cellulose has numerous oxygen-containing groups, and opens up a new transmission path of lithium ions in the composite solid electrolyte. Meanwhile, the lithiated cellulose can limit disordered movement of lithium salt anions, so that the transportation efficiency of lithium ions is improved. Researches find that lithiated cellulose strengthens various physical and chemical properties of the composite solid electrolyte. The composite solid electrolyte prepared by the method has the advantages of simple process, easily available raw materials, safety, no pollution and suitability for large-scale production.
Vertically superimposed lateral gate-all-around metal-oxide-semiconductor field-effect transistors are provided, a structure of a novel three-dimensional integrated circuit such as a CMOS logic circuit that is composed of the vertically superimposed lateral gate-all-around transistors, a random-access memory and the like, and a manufacturing method for the novel three-dimensional integrated circuit are provided. The manufacturing method for the vertically superimposed lateral gate-all-around transistors includes: first preparing a monolayer channel and a source/drain, then protected with a sacrificial layer; preparing an insulating isolation layer, preparing above repeated structures on the insulating isolation layer; preparing an insulating spacer layer between the source/drain and a gate of each of the layers, a gate oxide, a gate, and a source/drain electrode in a unified manner, and finally preparing a connecting wire connected to the outside. The novel three-dimensional integrated circuit can be implemented by connecting the lateral gate-all-around transistors by means of a wire.
H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
H01L 27/092 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate complementary MIS field-effect transistors
H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
An epoxy resin laminate reinforced by carbon-basalt hybrid fibers and a manufacturing method therefor are provided. The manufacturing method includes: brushing an epoxy resin mixture by using a manual laying method, and laying carbon fiber felts and basalt fiber felts according to components and superposing modes to obtain superposed fiber felts after laying; placing the superposed fiber felts after laying into a vacuum bag, and evacuating air; and placing the superposed fiber felts after laying in a vulcanizing machine, heating the superposed fiber felts to a temperature required for a crosslinking reaction between epoxy resin and a curing agent by using a preset heating method, applying pressure by an upper die and a lower die to ensure that interiors of the superposed fiber felts are compact and surfaces are smooth, and keeping the temperature and the pressure to obtain the epoxy resin laminate reinforced by the carbon-basalt hybrid fibers.
Provided are a quadruped robot and a spine-leg-foot coupling driving method, relating to the technical field of bionic robots. The quadruped robot includes an active spine, and two trunks. The two trunks are a fore trunk and a hind trunk, respectively. The two trunks can pitch and can be telescopically arranged at both ends of the active spine in a front-rear direction. The active spine can drive the trunks to pitch, extend and retract. In accordance with the spine-leg-foot coupling driving method, the pitch and retraction state of the spine and the energy storage and release state of legs during the running of a quadruped are stimulated by controlling the swing state of a swing output member, the extension and retraction state of the trunk and the energy storage and release state of an elastic leg.
B62D 21/18 - Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups
B62D 57/032 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted supporting base and legVehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted feet or skid
25.
Large-scale dynamic double-effect scheduling method for flexible job shop based on genetic programming
Disclosed is a large-scale dynamic double-effect scheduling method for a flexible job shop based on genetic programming (GP). In a GP implementation process of the present disclosure, in addition to features related to workpieces, processing robots and automated guided vehicles (AGVs), such as processing time of working procedures and buffer area waiting time, features of a ratio of processing time to transfer time and a ratio of processing energy consumption to transfer energy consumption are also added in a terminal set to cause job shop environment features to be more comprehensively applied to a scheduling rule design, thereby automatically designing a more consistent and accurate scheduling rule. A double-effect scheduling rule of the present disclosure overcomes the shortcomings of slow convergence speed, difficulty in rapid corresponding changes and unfit scheduling rules, and can quickly produce a more efficient and energy-saving production scheduling scheme.
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
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 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
26.
METHOD AND SYSTEM FOR DIAGNOSING LEAKAGE IN HYDROGEN SYSTEM FOR VEHICLE, ELECTRONIC DEVICE, AND STORAGE MEDIUM
The present disclosure provides a method and system for diagnosing a leakage in a hydrogen system for a vehicle, an electronic device, and a storage medium. The method includes: obtaining data of a hydrogen cylinder gas pressure of a fuel cell vehicle; separately performing Gramian angular field transformation and Markov transition field transformation on the pressure data, to obtain static and dynamic feature information; performing, by a static feature LeNet neural network, recognition based on the static feature information, to obtain a probability output of the static feature LeNet neural network; performing, by a dynamic feature LeNet neural network, recognition based on the dynamic feature information, to obtain a probability output of the dynamic feature LeNet neural network; and performing fusion through a Dempster-Shafer (D-S) evidence theory based on the probability output of the static and dynamic feature LeNet neural network, to obtain an excellent hydrogen leakage diagnosis result.
F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment
G01M 3/32 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
27.
METHOD AND SYSTEM FOR PREDICTING DIFFUSION RANGE OF HAZARDOUS GAS, ELECTRONIC DEVICE AND STORAGE MEDIUM
A method and system for predicting a diffusion range of a hazardous gas, an electronic device and a storage medium are provided. The method includes: gridding a space area of a public scene to obtain a gridded space; performing leakage source analysis according to the gridded space to determine a leakage feature; determining a hazardous gas prediction manner according to the leakage feature and an early warning condition, where the hazardous gas prediction manner includes a hazardous gas existence mode and a protective gas coexistence mode; determining a diffusion circle coverage according to the hazardous gas prediction manner and a wall barrier action; determining a hazardous gas concentration in grids covered by a diffusion circle according to the diffusion circle coverage; and determining a hazardous gas distribution according to the hazardous gas concentration, a leakage outlet and a ventilation opening.
The present application relates to an interferogram phase estimation method. The interferogram phase estimation method includes: obtaining an interferogram for estimation of a measured object; and inputting the interferogram for estimation to a neural network model trained based on a method for training a neural network model for interferogram phase estimation, to obtain a phase image corresponding to the interferogram for estimation. In the interferogram phase estimation method of the present application, features of different scales of an interferogram are learned based on a Unet++ neural network model to obtain an accurately estimated phase image corresponding to the interferogram.
Disclosed is a hybrid data- and model-driven method for predicting remaining useful life of a mechanical component. The method of the present disclosure uses an extended Kalman filter to calibrate parameters of an exponential random model, automatically learns input embedded position information by means of an adaptive encoding layer of a hybrid driven prediction model, and then models a mapping relation between input data and the remaining useful life by means of a multi-head attention mechanism. The present disclosure retains both accuracy of a model-based method and a generalization capability of a data-driven method in combination with the calibrated exponential random model and a multi-head attention neural network structure, can improve accuracy of predicting the remaining useful life of the mechanical component, and has great significance for use of the hybrid data- and model-driven method in the field of intelligent manufacturing and health management of mechanical apparatuses.
G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
The present disclosure provides a flexible job-shop scheduling method and system and an electronic device. The method according to the present disclosure includes: randomly generating a plurality of flexible job-shop environments in a production job-shop according to a preset production target; constructing a scheduling strategy model of the production job-shop based on a Markov decision process; optimizing a feature extraction network, an actor network and a critic network simultaneously by using the scheduling strategy model and a plurality of data sets, and determining a scheduling plan corresponding to a maximum completion time as an optimal scheduling plan after the completion of the optimization; and completing the preset production target based on the optimal scheduling plan. According to the present disclosure, feature extraction is performed on the plurality of job-shop environments to generate a scheduling scheme, so as to improve the efficiency and rationality of flexible job-shop scheduling.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
31.
FEDERATED-LEARNING OPERATION METHOD, SYSTEM AND APPARATUS HAVING ROBUSTNESS
Disclosed in the present application are a federated-learning operation method, system and apparatus having robustness. The method comprises: an aggregation device receiving a plurality of first segmentation models, which are sent by user equipments, and calculating a model similarity corresponding to each first segmentation model; the aggregation device generating partial-aggregation models according to second segmentation models, wherein the second segmentation models are selected from among the plurality of first segmentation models according to the model similarities; and the aggregation device aggregating partial-aggregation models corresponding to the user equipments, so as to generate a global-aggregation model. During the process, according to the model similarities that correspond to the first segmentation models and are in a non-plaintext state, the aggregation device selects from among the first segmentation models second segmentation models that can be subjected to partial aggregation, so as to generate partial-aggregation models, and then generates a global-aggregation model according to the partial-aggregation models, such that on the basis that the privacy of a user is protected, an infected model can be screened out and eliminated more conveniently, thereby implementing lossless aggregation of models.
YANGTZE DELTA GRADUATE SCHOOL OF BIT (JIAXING) (China)
Inventor
Ye, Shujun
Wang, Yeliang
Abstract
Provided are a magnetic random access memory device and a manufacturing method therefor. The device comprises magnetic thin film structure bodies, and an electrode arranged around side surfaces of the magnetic thin film structure body. The method is: preparing a bottom electrode, preparing a magnetic thin film structure body on the bottom electrode; preparing a non-magnetic thin film structure body on the magnetic thin film structure body, and preparing another magnetic thin film structure body on the non-magnetic thin film structure body; etching the two magnetic thin film structure bodies and the non-magnetic thin film structure body to form a MTJ device, preparing an insulating layer thin film on the outer surface of the device, and preparing a VCMA electrode on the periphery of the side face of the magnetic thin film structure body requiring voltage application; and preparing a wire connecting the VCMA electrode to outside.
G11C 11/16 - Digital stores characterised by the use of particular electric or magnetic storage elementsStorage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
H10B 61/00 - Magnetic memory devices, e.g. magnetoresistive RAM [MRAM] devices
A three-dimensional imaging system and method for a terahertz frequency-modulated continuous wave quasi-optical array. The system comprises: a first terahertz radiation source (1), which is used for radiating a first terahertz spherical beam; a collimating lens (2), which is used for collimating the first terahertz spherical beam into a first plane wave, and space-feeding the first plane wave to a quasi-optical array (3); a second terahertz radiation source (4), which is used for radiating a second terahertz spherical beam; an off-axis parabolic mirror (5), which is used for collimating the second terahertz spherical beam into a second plane wave; a first reflecting mirror (6), which is used for reflecting the second plane wave to a beam splitter (7); the beam splitter (7), which is used for reflecting the second plane wave to an object (8) to be subjected to detection, wherein an echo signal generated by said object (8) by means of reflection is space-fed to the quasi-optical array (3); and an imaging device, which is used for collecting a local oscillator signal and an echo signal of each array unit at the quasi-optical array (3), and performing real-time three-dimensional imaging. The system greatly improves the imaging rate, and a quasi-optical feed mode is more applicable to large-scale terahertz array integration and does not require a complex power distribution feed network.
A high-acoustic-resistance piston motion loudspeaker disclosed in the present disclosure belongs to the field of sound-electricity conversion. The loudspeaker includes a substrate, a driving assembly, a vibrating diaphragm, a connecting assembly and a vibration cavity. The connecting assembly is not coplanar with the vibrating diaphragm, which is of a concealed connecting structure. The driving assembly is configured to drive the vibrating diaphragm to generate a piston motion. The vibrating diaphragm is located in the vibration cavity, and a displacement range of the vibrating diaphragm in a perpendicular direction is within a height range of the vibration cavity formed by a supporting structure extending in a thickness direction of a base, so as to achieve purposes of reducing air leakage and improving a sound pressure level in a working process of the loudspeaker.
A compound, a liposome, a method for preparing a liposome, a drug carrier, a pharmaceutical composition and a use of the pharmaceutical composition in the treatment or prevention of hyperlipidemia and related diseases thereof.
C07C 233/05 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
36.
Method, Device and Equipment for Selecting Key Geological Parameters of a To-Be-Prospected Block
The present disclosure provides a method for selecting key geological parameters of a to-be-prospected block. The method includes the following steps: obtaining sampling values of some known comparison blocks and a to-be-prospected block, inputting the sampling values into a mathematical model to calculate similarity probabilities of the to-be-prospected block relative to all comparison blocks, obtaining analogy probabilities of the to-be-prospected block relative to all comparison blocks based on all similarity probabilities, determining the maximum analogy probability and selecting the comparison block corresponding to the maximum analogy probability as the most relevant block of the to-be-prospected block, and selecting the target geological parameters from all geological parameters of the to-be-prospected as the key geological parameters of the to-be-prospected block, where the target geological parameters of the to-be-prospected block correspond one-to-one with and are same with the key geological parameters of the most relevant block.
Disclosed and provided in the present invention is a low-complexity detection method applied to an OTFS-SCMA system. In the method, a list sphere decoding algorithm is introduced into an OTFS-SCMA uplink system, thereby reducing the computation complexity of traditional MPA detection; and a controllable number of auxiliary computation points are introduced to replenish and update a list sphere decoding search result, thereby improving the convergence of a detector, and obtaining the same detection precision as traditional MPA detection while ensuring that the computation complexity is significantly reduced.
One or more embodiments of the present description provide a method and device for risk prediction of thermal runaway in LIB. The method includes: acquiring knowledge of a mechanism for thermal runaway in LIB; describing an evolution process of thermal runaway in LIB by adopting a fault tree; mapping a fault tree structure to a dynamic Bayesian network model for thermal runaway in LIB to obtain quantitative results of a risk of thermal runaway in LIB; and taking the quantitative results of a dynamic Bayesian network as inputs of a machine learning model to obtain prediction results of the risk of thermal runaway. By using the method in the present embodiment, an evolution trend of battery thermal runaway can be predicted by fusing multiple thermal runaway causes and multi-source data, and thus, the prediction results are relatively accurate.
A temperature-sensitive automatic rapid gas generation fire extinguishing device is provided, including a box body; a plurality of heat absorption fire extinguishing units are placed on an inner side wall of the box body, and a first trigger unit is arranged between one of the heat absorption fire extinguishing units close to the first baffle and the inner side wall of the box body; the one of the heat absorption fire extinguishing units triggers the first baffle to move down through the first trigger unit, and a relatively closed space is formed in the box body; a plurality of gas generation fire extinguishing units are placed on an inner side wall of the box body, and a second trigger unit is arranged between one of the gas generation fire extinguishing units close to the second baffle and the inner side wall of the box body.
The present disclosure relates to a performance testing device applicable to a metal fuel cell, and belongs to the field of metal fuel cells. Self-adaptive clamping equipment can be used for autonomously positioning and clamping galvanic piles with different sizes and shapes, and can be self-adaptively fixed according to the shapes. Sealing performance testing equipment is used for testing the sealing performance of the metal fuel cell through a testing pool. Discharge performance testing equipment is used for testing the discharge performance of the metal fuel cell. According to the performance testing device, two performances of sealing and discharging can be tested at the same time, perfusion of different electrolytes and measurement of galvanic piles composed of different numbers of single cells with different sizes can be realized, and the compatibility requirement of large-batch and multi-type cells delivered from a factory is met.
A multi-source self-adaptive low-stress additive manufacturing apparatus including a multi-axis manipulator additive manufacturing system, a high-energy sound beam regulation system, a substrate and a self-adaptive additive manufacturing workbench. The multi-axis manipulator additive manufacturing system includes multi-axis manipulator(s), welding torch(es), manipulator controller(s) and a guide rail, where base(s) of the multi-axis manipulator(s) is connected with the guide rail, the welding torch(es) is held by distal end(s) of the multi-axis manipulator(s), the multi-axis manipulator(s) is controlled by the manipulator controller(s) to move the welding torch(es) to conduct low-stress additive manufacturing on the workpiece to be additive manufactured. The high-energy sound beam regulation system includes one or more high-energy sound beam exciters, each having a high-energy sound beam excitation unit and a titanium alloy special adiabatic amplitude transformer so as to realize the regulation of residual stress generated in the additive manufacturing process of the workpiece.
B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
B23K 20/10 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
A multi-source self-adaptive low-stress additive manufacturing method that includes arranging one or more high-energy sound beam excitation units on an additive manufacturing platform according to a size and a structure of a metal workpiece; planning an additive path according to the size and the structure of the workpiece; fixing a substrate on a self-adaptive additive manufacturing workbench; conducting additive manufacturing of the workpiece and starting a high-energy sound beam regulation system synchronously to generate high-energy sound beam(s) that are transmitted to the workpiece according to a control sequence; acquiring position information of molten pool(s) and position information of the one or more high-energy sound beam excitation units in the additive manufacturing process; continuously monitoring a surface temperature of the workpiece; and closing the high-energy sound beam regulation system when the additive manufacturing of the workpiece is finished and the surface temperature of the metal workpiece is reduced to room temperature.
The present invention relates to an organic solar cell for a current-voltage test and a preparation method thereof. The disclosed organic solar cell for the current-voltage test comprises a substrate with a preset ITO pattern, wherein ITO on the substrate with the preset ITO pattern is used as the anode layer, and a hole transport layer, an active layer, an electron transport layer and a cathode layer are stacked successively to form a solar cell. A plurality of cell positions are designed on the substrate in the present invention. Each cell has an independent cathode test site and an anode test site. The distance between the test site of each cell and the cell is kept the same and the distance is short enough; and the cells are distributed evenly on the substrate discretely. The present invention has high substrate utilization rate, high data accuracy and good parallelism.
H02S 50/10 - Testing of PV devices, e.g. of PV modules or single PV cells
H10K 30/30 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains
H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
Provided in the present invention are a method and apparatus for selecting a key geological parameter of a block to be surveyed, and a device. The method comprises: acquiring a plurality of pieces of sample data of each geological parameter of a block to be surveyed; respectively inputting, into a pre-constructed discrimination model, a plurality of pieces of sample data of each key parameter of a preset target contrast block and a plurality of pieces of sample data of a first geological parameter of the block to be surveyed, so as to obtain a similarity probability, relative to the target contrast block, of the block to be surveyed; on the basis of the similarity probabilities between the block to be surveyed and all target contrast blocks, determining, to be the most relevant block, the target contrast block having the maximum similarity probability with the block to be surveyed; and selecting, from among all geological parameters of the block to be surveyed and as a key geological parameter of the block to be surveyed, a geological parameter the same as a key geological parameter of the most relevant block. By using the method provided in the present invention, the influence of subjective human factors can be eliminated, so that a structure for subsequent resource quantity calculation can be more accurate.
The present invention provides vertically stacked lateral gate-all-around metal-oxide-semiconductor field-effect transistors (referred to as lateral gate-all-around transistors), a structure of a novel three-dimensional integrated circuit that is composed of the vertically stacked lateral gate-all-around transistors and comprises a CMOS logic circuit, a random-access memory and the like, and a manufacturing method for the vertically stacked lateral gate-all-around transistors. The manufacturing method for the vertically stacked lateral gate-all-around transistors comprises: first preparing a single channel and a source/drain, then protecting the single channel and the source/drain using a sacrificial layer, preparing an insulating isolation layer, preparing the repeated structures above the insulating isolation layer, preparing an insulating spacer layer between the source/drain and a gate of each of the described layers, a gate oxide, the gate, and a source/drain electrode in a unified manner, and finally preparing a connecting wire to the outside. The novel three-dimensional integrated circuit that is composed of the vertically stacked lateral gate-all-around transistors and comprises the CMOS logic circuit, the random-access memory and the like, can be implemented by connecting the described lateral gate-all-around transistors by means of a wire. The invention paves the way for the next generation of high-performance high-integration-level computer chips.
H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
H01L 21/336 - Field-effect transistors with an insulated gate
H01L 27/092 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate complementary MIS field-effect transistors
H01L 21/8238 - Complementary field-effect transistors, e.g. CMOS
Provided is a dual-mode compressor. The dual-mode compressor comprises a first scroll (31), a second scroll (32), and an impeller (33). The first scroll (31) and the second scroll (32) define a scroll compression working cavity (3a), and the impeller (33) defines a centrifugal compression flow channel (33d). The impeller (33) and the second scroll (32) are fixed relative to each other and are arranged coaxially, and the inlet of the centrifugal compression flow channel (33d) is communicated with the outlet of the scroll compression working cavity (3a). Under a large flow and high compression ratio working condition, the dual-mode compressor can work in a scroll-centrifugal compression mode, so that a working medium leaving the scroll compression working cavity (3a) can enter the centrifugal compression flow channel (33d) and then flow out of the dual-mode compressor, thereby solving the problems that a scroll compressor has low efficiency under a high compression ratio working condition, and a centrifugal compressor cannot compress a gas-liquid mixed working medium. Alternatively, in a small flow working condition, the dual-mode compressor can work in a scroll compression mode, so that a working medium leaving the scroll compression working cavity (3a) can directly flow out of the dual-mode compressor, thereby solving the problems of low efficiency and instability of a centrifugal compressor under a small flow working condition.
F04C 28/02 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps
F04D 17/10 - Centrifugal pumps for compressing or evacuating
F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
47.
Risk early warning method and system for hydrogen leakage
The present disclosure relates to a risk early warning method and system for hydrogen leakage, and relates to the field of hydrogen leakage. The method includes: obtaining ventilation information of a hydrogen-related area; carrying out grid division on a pipeline system of the hydrogen-related area to obtain a gridded pipeline system; determining a risk coefficient corresponding to each grid of the gridded pipeline system according to leakage sources of the pipeline system; determining a high-risk region by means of a jet cone model according to the risk coefficients; determining a medium-risk region, a low-risk region and a safe region according to the risk coefficients and the ventilation information; and carrying out risk early warning according to the high-risk region, the medium-risk region, the low-risk region and the safe region.
YANGTZE DEITA GRADUATE SCHOOI OF BEIJING INSTITUTE OF TECHNOLOGY (JIAXING) (China)
Inventor
Ye, Shujun
Wang, Yeliang
Abstract
Provided in the present invention are an antiferromagnetic magnetic random access memory device and a manufacturing method therefor. The device comprises a ferromagnetic thin-film structural body, an antiferromagnetic thin-film structural body, and a tunnel insulating thin-film structural body sandwiched between the ferromagnetic thin-film structural body and the antiferromagnetic thin-film structural body. The manufacturing method for the device comprises: on a substrate and from bottom to top, sequentially preparing a first electrode, preparing a first ferromagnetic thin-film structural body and applying an external magnetic field to the first ferromagnetic thin-film structural body, preparing a first tunnel insulating thin-film structural body and an antiferromagnetic thin-film structural body, preparing a second tunnel insulating thin-film structural body, preparing a second ferromagnetic thin-film structural body and applying, to the second ferromagnetic thin-film structural body, an external magnetic field opposite that of the first ferromagnetic thin-film structural body, and preparing a second electrode. The present invention can realize an information writing and reading mode in which the size of a device is reduced, can realize high-density storage, and also has characteristics such as terahertz-level high-speed information writing and external magnetic interference resistance of an antiferromagnet.
G11C 11/16 - Digital stores characterised by the use of particular electric or magnetic storage elementsStorage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
49.
IMAGE GUIDED RADIOTHERAPY APPARATUS AND CONTROL METHOD THEREFOR
Cancer Hospital, Chinese Acad. of Medical Sciences (China)
Shaanxi Huaming Putai Medical Equip. Co. Ltd. (China)
Tsinghua University (China)
Beijing Institute of Technology (China)
Beihang University (China)
Beijing Patesi Technology Co., Ltd. (China)
Huiying Medical Technology (Beijing) Co., Ltd. (China)
Beijing Information Science & Tech. University (China)
Inventor
Dai, Jianrong
Niu, Chuanmeng
Li, Yanfei
Zha, Hao
Ma, Pan
Wang, Shirong
Zhou, Fugen
Li, Hongda
Li, Minghui
Lv, Guozheng
Chai, Xiangfei
Peng, Baoying
Zhang, Jinyan
Abstract
An image guided radiotherapy apparatus and a control method are provided. According to a specific embodiment, the radiotherapy apparatus includes: a treatment unit, which includes a treatment head for generating radiation beam for radiotherapy; an imaging unit for imaging a target area of a patient, wherein the imaging unit is integrated mounted with the treatment head. The radiotherapy apparatus of the present invention can be applicable to both extracorporeal and intraoperative radiotherapy, and has a high radiotherapy accuracy.
YANGTZE DEITA GRADUATE SCHOOI OF BEIJING INSTITUTE OF TECHNOLOGY (JIAXING) (China)
Inventor
Ye, Shujun
Wang, Yeliang
Abstract
Provided in the present invention are a magnetic random access memory device and a manufacturing method therefor. The device comprises magnetic thin film structure bodies, and an electrode capable of applying voltage to a magnetic thin film structure body to control the magnetic anisotropy of the magnetic thin film structure body is arranged on the periphery of a side face of the magnetic thin film structure body. A preparation method for the device is: preparing a bottom electrode, preparing a magnetic thin film structure body on the bottom electrode, preparing a non-magnetic thin film structure body on the magnetic thin film structure body, and preparing another magnetic thin film structure body on the non-magnetic thin film structure body; then, preparing the two magnetic thin film structure bodies and the non-magnetic thin film structure body into a device, preparing an insulating layer thin film on the outer surface of the device, and preparing a VCMA electrode on the periphery of the side face of the magnetic thin film structure body requiring voltage application; and finally, preparing a wire connecting the VCMA electrode to the outside. The VCMA electrode in the present invention is generated from the side face of the magnetic thin film structure body, does not have an effect to the non-magnetic thin film structure body, and can reduce the magnetic anisotropy, so that endurance of the non-magnetic thin film structure body can be remarkably improved while helping an MTJ with a spin transfer torque writing mode to reduce information write-in energy consumption.
G11C 11/16 - Digital stores characterised by the use of particular electric or magnetic storage elementsStorage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
51.
Rotary-transmission-target microfocus X-ray source and ray generation method
A rotary-transmission-target microfocus X-ray source and an X-ray generation method based on the rotary-transmission-target microfocus X-ray source are provided. The X-ray source comprises a chamber, and an electron beam system is installed in the chamber. The electron beam system is arranged on a same side as an anode target rotating shaft. A motor in a rotary anode target system drives an anode target to rotate through a bevel gear transmission device. The microstructure of a target is designed. An electron beam emitted by the electron beam system vertically bombards the metal target of the rotating anode target. A cooling system is configured to cool the anode target.
00covcov. According to the present invention, a result similar to tedious simulation can be obtained, the evaluation process is simpler and more efficient, and the randomness of communication node distribution is fully considered.
The present invention relates to the technical field of neural regulation by alternating current stimulation, and particularly, to a method and a system for closed-loop regulation of a neural network by adaptive alternating current stimulation. The system consists of an individualized navigation module, an alternating current stimulation module, an electroencephalographic signal acquisition module, and an adaptive coupling module. After a magnetic resonance image and a functional magnetic resonance image of a subject to be regulated are input into the individualized navigation module, a functional connection network is generated to determine a target to be regulated. The position of a stimulation electrode and the value of a stimulation current are determined according to said target. The regulation frequency is determined according to the electroencephalogram of said object, is input into the alternating current stimulation module for regulation, and is input into the adaptive coupling module after the acquisition in the electroencephalographic signal acquisition module during the regulation process. The current and waveform of the alternating current stimulation module are adaptively adjusted according to an electroencephalographic signal in the regulation process to achieve phase coupling, so as to achieve accurate closed-loop neural network regulation.
An internal-cooling rolling tool capable of realizing variable-angle low-temperature lubrication is provided. The internal-cooling rolling tool includes a tool handle, a rotatable tool head and a medium conveying tube. The rotatable tool head includes a base, a rolling head and a ball. The bottom end of the base is mounted on the tool handle, and the top of the base is provided with a medium input port connected with the medium conveying tube. The rolling head is detachably mounted on the front end surface of the base, and the front end surface of base is provided with a plurality of spray holes in the circumferential direction of the rolling head. The medium conveying tube communicates with the spray holes through a medium flow channel. The ball is mounted on one end of the rolling head facing away from the base.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
55.
Method and device for capacity degradation prediction of lithium-ion battery
One or more embodiments of the present specification provide a method and device for capacity degradation prediction of a lithium-ion battery. The method comprises the following steps: acquiring an original battery discharge capacity; decomposing the original battery discharge capacity through a predetermined mode decomposition method to obtain battery discharge capacities composed of a plurality of different frequency signals; inputting the respective frequency signals into a pre-constructed capacity prediction model to obtain capacity prediction results corresponding to the respective frequency signals; selecting capacity prediction result that satisfies a predetermined relevance condition corresponding to the respective frequency signals; and reconstructing the finally predicted battery discharge capacity according to the capacity prediction result that satisfies the predetermined relevance condition.
The present invention discloses application of a strain CH18 in preparation of anthocyanins and other flavonoid compounds. The preservation number of the strain CH18 is CGMCC NO.14784. Flavonoid compounds have the functions of resisting oxidation, tumors and fatigue, delaying senescence, preventing cardiovascular and cerebrovascular diseases, reducing blood pressure and blood lipid, regulating neuroendocrine, resisting osteoporosis, removing freckles, resisting wrinkles, and improving eyesight. The present invention uses microorganisms to produce anthocyanins and other flavonoids, which has the advantages of low price, easy control, short production cycle and year-round production, and can meet the needs of industrial production. Therefore, the present invention opens up a new biological pathway for producing a variety of anthocyanins and other flavonoid compounds with high efficiency and low cost.
A method and a system for vehicle sideslip angle estimation based on event-triggered state estimation are provided. The method includes: setting an observation variable, and adopting a Kalman filtering algorithm for iteration aiming at estimation of a vehicle yaw rate; in the iteration, setting a parameter to 1, indicating that an event is triggered, when a calculation of the observation variable satisfies a predetermined condition, otherwise setting the parameter to 0, indicating that the event is not triggered; when the parameter is set and a GPS heading angle is updated, estimating a state variable according to a formula, and calculating a vehicle sideslip angle according to the vehicle yaw rate obtained by adopting the Kalman filtering algorithm; and when the parameter is 1 and the GPS heading angle is not updated yet, estimating the vehicle sideslip angle by fusing measurement data of both a GPS and an IMU.
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
B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
58.
Material with directional thermal conduction and thermal insulation and preparation method thereof
Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.
An intrinsically safe explosive disposal and protection device and a use process thereof. Excessive explosion or extreme conditions themselves do not produce secondary damage, high-efficient absorption of explosion shock wave energy can be realized, and non-contact safe disposal can be performed on explosives (6). The device comprises: an explosion-proof top cover (1), a supporting plate (2), an explosion-proof filling material layer (3), and an explosion-proof bucket (4); the explosion-proof bucket (4) is a bucket structure having openings on both ends; the explosion-proof top cover (1) is provided at the top opening of the explosion-proof bucket (4); the supporting plate (2) is supported inside the explosion-proof bucket (4), and the height of the supporting plate (2) inside the explosion-proof bucket (4) is adjustable; a region below the supporting plate (2) in the explosion-proof bucket (4) is a placement region of the explosives (6); an explosion-proof material is filled between the supporting plate (2) and the explosion-proof top cover (1) in the explosion-proof bucket (4) to form the explosion-proof filling material layer (3).
A multi-robot collaboration method in a flexible hardware production workshop is provided, by which allocation of workpiece machining tasks and transfer of workpieces in different workstations can be achieved and meanwhile relatively high calculation cost is avoided. According to the method, a distributed collaboration method is fully used, and in allusion to the current technical condition, the allocation of the workpiece machining tasks and the transfer of the workpieces in different workstations can be achieved and meanwhile the relatively high calculation cost is avoided. A multi-AGV path conflict eliminating method is used for avoiding possible collision of AGVs during movement. A centralized intervention and adjustment method is used for discovering and predicting system conflicts and failure problems and making timely dispatching and adjustment so as to improve the automation level and the flexibility level of a hardware workshop.
G05B 19/41 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path
G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
61.
AMPHIBIOUS UNMANNED PATROL VEHICLE CAPABLE OF REAL-TIME COMMUNICATION
The amphibious unmanned patrol vehicle includes a buoy, a waterproof cable and a submersible amphibious vehicle. An end of the waterproof cable is connected to a first controller of the buoy; and another end thereof is connected to a second controller of the submersible amphibious vehicle. A bottom end of the buoy is connected to a top end of the submersible amphibious vehicle which is configured to realize movement and operation of a whole system. The waterproof cable is configured to connect the submersible amphibious vehicle, and the buoy configured to ensure real-time communication between the submersible amphibious vehicle and an external environment during operation of the submersible amphibious vehicle. A height difference between an upper surface and a lower surface of the automatic reeling and unreeling cable device is equal to a thickness of the waterproof cable. The length of the waterproof cable is adjusted automatically in real time.
Method and system for global stabilization control of a hypersonic vehicle. The method can include constructing a longitudinal dynamic model of a non-minimum phase hypersonic vehicle; translating a non-zero equilibrium point of the hypersonic vehicle to the origin of coordinates by transformation of coordinates to transform the longitudinal dynamic model, where the transformed longitudinal dynamic model includes an output dynamic model and an internal dynamic model; performing variable decomposition on the transformed longitudinal dynamic model by state decomposition and constructing an auxiliary system model using decomposed variables, where the auxiliary system model includes output dynamics and internal dynamics; and determining a control law based on a feedback linearization theory according to the output dynamics and realizing the global stabilization control of the hypersonic vehicle with the control law. The present disclosure enables the global stabilization control of a non-minimum phase hypersonic vehicle.
A method for estimating the state of charge (SOC) of a lithium-ion battery system based on artificial intelligence (AI) is provided. In the method, the relationship between the charging data segments and the SOC of the battery system is established through deep learning, and the SOC at any stage of the charging process can be corrected. SOC in a discharging process is estimated through ampere-hour integration. The estimation method is adaptively updated with a change in the working state of the battery system.
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/378 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
64.
CHARGING DEVICE, AND METHOD FOR CONTROLLING MECHANICAL ARM TO CHARGE
Disclosed in the embodiments of the present application is a charging device. The charging device comprises: a control structure, and a mechanical arm main body, which is provided with a force sensor and a charging plug, wherein the force sensor is used for collecting acting force information between a side face of a charging head and a charging port after the charging plug makes contact with the charging port; and the control structure can control the pose of the mechanical arm main body according to the acting force information, so as to insert the charging plug into the charging port. In the present application, the pose of a mechanical arm is controlled by means of acquiring acting force information collected by a force sensor, and when a charging plug has been partially inserted and an error cannot be acquired by means of visual information, a position and a pose can be adjusted according to a force sense, such that the charging plug can adapt to the insertion direction of a charging port, thereby improving the accuracy and reliability of a plugging and unplugging task.
A wireless power transfer (WPT) system regulation method and system for implementing zero voltage switching (ZVS) in a wide power range are provided. The method includes: determining, according to a topology structure of a WPT system and based on a linear state equation, a phase -shift angle boundary and a switching frequency boundary of an inverter that meet ZVS; fixing a switching frequency at a resonance frequency of the WPT system, and determining, in a phase -shift manner, a phase-shift range and a corresponding first voltage output range for implementing ZVS; determining a frequency variation range of a frequency modulation method; determining an optimal switching frequency based on corresponding switching frequencies and phase-shift angles that meet ZVS at different expected output voltages of the WPT system; determining a second voltage output range for implementing ZVS at the optimal switching frequency; and regulating the WPT system by using different regulation methods.
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
A high-dynamic-range hybrid solid-state lidar system, which is based on a transponder array module, includes a transmitting system, a transceiver integrated optical system, a one-dimensional scanning device, a detecting system, and an information processing system. An information processing control circuit and a gain control module increase a total amplification factor, in a single timing period, of a gain circuit over time, thereby alleviating an echo signal intensity distortion, and expanding a dynamic ranging range. The system uses the one-dimensional scanning device and the transceiver integrated optical system composed of a circulator, a lens set, and an optical fiber array, so that the optical system is separated from an avalanche photo diode (APD) detector, and focusing is not required. A temperature of a linear APD array is monitored in the detecting system to adjust a reverse bias voltage of an APD correspondingly and alleviate unstable gain caused by a temperature change.
G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
H01L 31/107 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier working in avalanche mode, e.g. avalanche photodiode
G01S 7/481 - Constructional features, e.g. arrangements of optical elements
Disclosed are a protection equipment, system and method for the destruction of explosives. The protection equipment for the destruction of explosives includes four modules: an inner fence, an outer fence, an anti-leakage fence and a top cover. The modular equipment takes an overall nonmetal flexible composite structure, and the individual modules are light in weight and convenient to operate. It can be operated by two persons or a single person. A protective effect can be achieved during destruction of explosives by using the protection equipment, and even if the explosives explode during destruction, it will not cause injury to surrounding personnel. A protection system for explosive destruction based on the protection equipment can be used to destroy unexploded bomb or explosives under protective conditions, thereby achieving rapid emergency disposal without making contact with the explosives.
Provided are four engineering yeasts, which are respectively engineering yeast CE-P1 capable of synthesizing calenduloside E, with a deposit number of CGMCC No. 23731, engineering yeast IVA-P1 capable of synthesizing chikusetsusaponin IVa, with a deposit number of CGMCC No. 23732, engineering yeast R1-P1 capable of synthesizing zingibroside R1, with a deposit number of CGMCC No. 23733, and engineering yeast Ro-P1 capable of synthesizing ginsenoside Ro, with a deposit number of CGMCC No. 23734. The de novo synthesis of a target compound is achieved by means of the above-mentioned engineering yeasts.
A lithium-ion battery system and a control method for combined internal and external heating are provided. A battery is heated in a low-temperature environment through combined internal and external heating. The energy released during self-heating of the battery is fully used, and rapid heating of the battery in the low-temperature environment is implemented. A current adjustment module in a heating module is controlled to adjust a switch on-off frequency and a current on-off time during the heating, and loops with different heating resistances in a multi-loop heating film are selected through a resistance adjustment switch. In this way, target heating requirements of the battery are met, such as a high heating rate in a low-temperature environment, low energy consumption during the heating, and a small impact on battery life without jeopardizing safety during the heating.
An artificial intelligence (AI)-based charging curve reconstruction and state estimation method for a lithium-ion battery is provided to estimate various states of a battery. In the method, a complete charging curve is reconstructed through deep learning with charging data segments as input. Then, a plurality of states of the battery can be extracted from the complete charging curve, including a maximum capacity, maximum energy, a state of charge (SOC), a state of energy (SOE), a state of power (SOP), and a capacity increment curve. The battery charging curve reconstruction and state estimation method is adaptively updated with a change in a working state of the battery.
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/378 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
71.
COMPOSITE INTERFERENCE SIGNAL RECOGNITION METHOD AND SYSTEM
Disclosed in the present application are a composite interference signal recognition method and system. The method comprises: preprocessing a composite interference signal to be recognized, and acquiring multi-domain features of said preprocessed composite interference signal; respectively inputting the acquired multi-domain features into a pre-trained deep learning neural network model on the basis of dimensions corresponding thereto, inputting one-dimensional sequence features into a one-dimensional sequence feature extraction module, inputting multi-dimensional sequence features into a multi-dimensional sequence feature extraction module, and then respectively extracting domain features of different dimensions; and inputting the extracted domain features of different dimensions into a feature fusion layer and a fully connected layer of the pre-trained deep learning neural network model, so as to obtain a classification recognition result of the composite interference signal.
The road simulation device includes a frame structure and a transmission structure. The transmission structure includes a first test bench, a second test bench, a third test bench and a fourth test bench. A first sliding plate structure of the first test bench slides in a first direction and a second direction, a second sliding plate structure of the second test bench slides in the first direction, and a third sliding plate structure of the third test bench slides in the second direction. The first sliding plate structure and the first base structure, the second sliding plate structure and the second base structure, the third sliding plate structure and the third base structure, as well as the fourth baffle plate structure and the fourth base structure are connected by spherical hinges. Damages to the frame structure caused by huge acting force generated by rigid connection during testing can be avoided.
A robot joint torque control system and a load compensation method therefor are provided, which relate to the technical field of robot joint motion control. A mathematical model of the robot joint torque control system is established first. Equivalent transformation is performed on a system functional block diagram thereof, and then it can be seen that load parameters have a great influence on joint torque output. A load compensation controller is designed to effectively eliminate the influence of the load parameters on an output torque of the joint. The system is equivalent to an inertial element on the basis of the compensation, and then a PD controller parameter is adjusted to increase an open-loop gain of the system, so as to increase a system bandwidth and increase a response speed of the joint torque control system, thereby improving performance of the joint torque control system.
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
74.
Method and system for adjusting double-sided LCC compensation network of wireless charging system
A method and a system for adjusting a double-sided LCC compensation network of a wireless charging system are provided. The method includes: obtaining a standard coupling coefficient, a rated operating frequency, and rated parameter values of compensation elements in the wireless charging system; determining change rates of output performance of the wireless charging system; determining an adjustable compensation element; obtaining a real-time coupling coefficient between the primary-side transmitting coil and the secondary-side receiving coil; determining whether the real-time coupling coefficient is less than a coupling coefficient threshold; and adjusting an operating frequency of the wireless charging system when the real-time coupling coefficient is not less than the coupling coefficient threshold; or adjusting both an operating frequency of the wireless charging system and the adjustable compensation element when the real-time coupling coefficient is less than the coupling coefficient threshold.
B60L 53/60 - Monitoring or controlling charging stations
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
75.
METHOD FOR REDUCING ROUGHNESS OF QUARTZ SURFACE TO SUB-NANOMETER SCALE
A method for reducing the roughness of a quartz surface to a sub-nanometer scale. The method comprises the following steps: determining a roughness parameter of a surface (26) to be machined of a sample (21) (S10); placing the sample (21) on a top face of a transparent substrate (22) (S20); coating the surface (26) to be machined of the sample (21) with an aqueous solution (23) which contains chlorine molecules, and making the refractive index of the aqueous solution (23) be less than the refractive index of the sample (21) (S30); emitting coherent monochromatic linearly-polarized radiation light (24) from an outer side of the transparent substrate (22) to the surface (26) to be machined of the sample (21), and making the coherent monochromatic linearly-polarized radiation light (24) be vertically incident from a light incident face (S40); and maintaining the irradiation of the coherent monochromatic linearly-polarized radiation light (24) on the surface (26) to be machined of the sample (21) for a predetermined time, so as to polish the surface (26) to be machined (S50). By means of the method, the radiation power needed for near-field polishing can be reduced.
The present invention relates to the technical field of multi-satellite multi-beam cooperative transmission under a satellite network architecture. Disclosed is a distributed multi-satellite joint beam forming method. The implementation method of the present invention is that: approximating an iteration process of a traditional weighted minimum mean square error (WMMSE) by applying a deterministic equivalent (DE) theorem, and after each round of iteration, replacing a large-dimensional instantaneous channel matrix with an auxiliary variable in an interactive scalar form among satellites, so as to significantly reduce the amount of information interacted among the satellites; and after iterative convergence, calculating a pre-coding matrix by means of a reception filter matrix, a user weight, and a group of instantaneous channel information, and implementing distributed multi-satellite joint beam forming according to the pre-coding matrix. In addition, by means of the multi-satellite joint beam forming, inter-beam interference is effectively reduced, and the throughput of the overall system is improved. In the present invention, the technical problems of large inter-beam interference in a multi-satellite system, overlarge signaling interaction burden in a traditional multi-satellite cooperative transmission technology, and difficulty in acquiring instantaneous channel information can be solved.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/0408 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
Provided is a configuration construction and attitude control method for a pyramid deorbit sail. By taking into consideration environmental perturbation like atmospheric resistance perturbation and non-spherical earth perturbation, a dynamics model featuring three-dimensional orbit-and-attitude coupling based on position vectors and quaternion descriptions, the deorbit sail is taken as a rigid body, a spacecraft body is taken as a mass point, airflow obstruction is considered in the windward area, thereby improving the precision of the dynamics model; based on this model, the law of influence of the configuration parameters in the deorbit sail, such as a cone angle and a strut length, on the attitude stability and deorbiting efficiency of the spacecraft in different cases is analyzed, the configuration parameters of the pyramid deorbit sail system are analyzed and optimized according to the derived law, so as to obtain a pyramid deorbit sail achieving high attitude stability and high deorbiting efficiency.
A foothold position control system and method for a biped robot are provided. 1) A feasible collision-free path is planned by using a path planning algorithm; 2) an available foothold area of a swing foot is determined according to step-length constraints, movement capabilities, foot sizes, and center offsets of a biped robot; and 3) fuzzy processing is performed to determine a specific foothold position of the biped robot. Selection of suitable foothold positions on both sides of a path when a biped robot executes specific walking actions after finishing path planning is realized. The foothold position control system and method has the advantages of being simple and easy to implement, having low computational load and high speed, being capable of exerting extreme movement capabilities of different biped robots, enabling more flexible movement of the biped robots, and so on.
G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
B62D 57/032 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted supporting base and legVehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted feet or skid
G05D 1/02 - Control of position or course in two dimensions
Harbin Marine Boiler and Turbine Research Institute (China)
BEIJING INSTITUTE OF TECHNOLOGY (China)
University of Shanghai for Science and Technology (China)
Inventor
Luan, Shenggang
Ji, Hongzhi
Yue, Yanjiong
Yin, Xunmin
Zhang, Dongdong
Zhao, Lihui
Yao, Shouwen
Bai, Yingchun
Abstract
Disclosed is a robust topology optimization design method of a damping composite stiffened cylindrical shell box structure, comprising: constructing working load data, and obtaining circumferential target modal frequencies based on the working load data and the stiffened cylindrical shell box; laying constrained layer damping materials on the stiffened cylindrical shell box to construct a damping composite stiffened cylindrical shell box; constructing interval parameters based on the damping composite stiffened cylindrical shell box, and obtaining modal loss factor based on the interval parameters; constructing an objective function based on the modal loss factors, constructing design variables and constraint conditions based on the damping composite stiffened cylindrical shell box, integrating the objective function, design variables and constraint conditions to form an interval robust topology optimization model; updating the design variables based on the interval robust topology optimization model, and obtaining an optimized topology configuration of the damping composite stiffened cylindrical shell box.
Disclosed is a method for preparing N,N,N-tripivaloyl-1,3,5-triaminobenzene. The method comprises: step 1, using 2,4,6-trinitrotoluene as a raw material, and reacting same with hydrogen and pivalic anhydride in sequence to obtain N,N,N-tripivaloyl-2,4,6-triaminotoluene; and step 2, subjecting the obtained N,N,N-tripivaloyl-2,4,6-triaminotoluene to a demethylation reaction, so as to obtain N,N,N-tripivaloyl-1,3,5-triaminobenzene. In the preparation method, decommissioned 2,4,6-trinitrotoluene is used, and the reactants or catalysts used are also all common products in the chemical industry; thus, the method has the advantages of low costs and simple and easily available raw materials. In addition, the preparation method also has characteristics such as short synthesis steps, each step being simple to operate, a high yield, a fast reaction rate, and intermediate and final products being easily separated and collected; and is conducive to realizing the mass production of N,N,N-tripivaloyl-1,3,5-triaminobenzene.
C07C 233/43 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of a saturated carbon skeleton
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
C07C 211/50 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton with at least two amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
C07C 231/06 - Preparation of carboxylic acid amides from nitriles by transformation of cyano groups into carboxamide groups
81.
TRIAMINOTOLUENE NUCLEATING AGENT, PREPARATION METHOD AND USE METHOD
Provided are an N,N,N-triacyl-2,4,6-triaminotoluene compound nucleating agent, and a preparation method therefor and a use method thereof. The nucleating agent is used for polymer nucleation at high temperatures, and can effectively reduce haze in a polymer film, and increase crystallization temperature and product quality; for example, when acting on a T30S plate, compared with a T30S plate without the nucleating agent, the haze value is reduced by 12.98, and the crystallization temperature is increased by 10.3°C. The nucleating agent has the advantages of stable intermediate properties, relatively mild reaction conditions, low cost, short time, and effective risk reduction during synthesis, and is beneficial to industrial production.
C07C 231/02 - Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
C07C 233/43 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of a saturated carbon skeleton
C07C 233/62 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of rings other than six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups
C07C 233/80 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
C07C 211/50 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton with at least two amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
A reducer gear for robot includes an outer contour layer and a reticulated porous base layer cladded by the outer contour layer; the outer contour layer comprises a mounting surface layer, a tooth surface layer, and a connecting surface layer connected between the mounting surface layer and the tooth surface layer and forming a complete gear outer contour together with the mounting surface layer and the tooth surface layer; the mounting surface layer, the tooth surface layer and the connecting surface layer are compact structures; the reticular porous base layer is located in a cavity formed by the outer contour layer, and fiber trabeculae in a porous grid structure are provided in the reticular porous base layer.
F16H 55/06 - Use of materialsUse of treatments of toothed members or worms to affect their intrinsic material properties
B22F 5/08 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheelsManufacture of workpieces or articles from metallic powder characterised by the special shape of the product of cam discs
B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
A modified polyisophthaloyl metaphenylene diamine (PMIA) ultrafiltration membrane and a preparation method therefor. The modified PMIA ultrafiltration membrane is prepared by using PMIA as a membrane material, using an amphiphilic block copolymer as an additive, and using a non-solvent induced phase inversion method. Provided is an application of the modified PMIA ultrafiltration membrane in water purification and industrial wastewater treatment.
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
In a method for preparing a gradient hardened titanium alloy. A steel momentum block and a cleaned titanium alloy plate are sequentially placed into a steel base with a through hole from bottom to top, a cross sectional size of the through hole is matched with cross sectional sizes of the steel momentum block and the titanium alloy plate, and a height of the through hole is matched with a total thickness of the steel momentum block and the titanium alloy plate. An explosive frame is fixed on a top edge of the steel base, a high explosion velocity explosive with an explosion velocity of 7000 m/s or more pressed into a plate-shaped structure is placed in the explosive frame, and detonation is caused at one end of a top surface of the explosive to perform impact treatment on the titanium alloy plate, thereby obtaining the gradient hardened titanium alloy.
The present application discloses a method for preparing a quantum dot article. The method comprises the steps of: (1) granulating a mixture comprising a first precursor and a plastic material to obtain a first precursor particle; (2) granulating a mixture comprising a second precursor and a plastic material to obtain a second precursor particle, wherein the second precursor comprises an X precursor; and the second precursor particle comprises X particles; and (3) molding a mixture comprising the first precursor particle, the second precursor particle and a plastic material to obtain the quantum dot composite material. According to the method, three precursors of a perovskite quantum dot are respectively pre-granulated by means of pre-distributed granulation, such that three components are separated from one another in space, the contact time of the three components during an extrusion process is greatly shortened, further growth of the perovskite quantum dot in a plastic molten state is further limited, and after the plasticization is completed, a high-quality quantum dot optical article can be obtained.
The present invention provides an iterative joint estimation method of vehicle mass and road gradient based on MMRLS and SH-STF, which includes the following steps: establishment of a dynamic model considering steering, MMRLS/SH-STF iterative joint estimation algorithm architecture, improved slope estimation algorithm based on SH-STF. It is an iterative joint estimation method of vehicle mass and road slope based on MMRLS and SH-STF, which is designed reasonably, and the slow-variation characteristics of vehicle mass and the time-varying characteristics of road gradient are analyzed. According to the characteristics of gradual change and time change, based on the longitudinal dynamics model of the vehicle and the steering single-track model, the system identification algorithm of multi-model fusion recursive least squares is used to calculate the vehicle mass, and the noise adaptive strong tracking based on extended Kalman filter is used.
Provided is a method for preparing phloroglucinol from 2,4,6-triaminotoluene. The method comprises: using 2,4,6-triaminotoluene and a hydrochloride thereof as raw materials to carry out hydrolysis-isomerization reaction of trienamine to obtain 2,4,6-trihydroxytoluene; and then carrying out oxidative demethylation reaction on 2,4,6-trihydroxytoluene to obtain a target product phloroglucinol. In the method, a cheap and readily-available acid is used as a reagent in the conversion from 2,4,6-triaminotoluene and the hydrochloride thereof to 2,4,6-trihydroxytoluene, hydrolysis-isomerization of trienamine is achieved at 77-90%, and demethylation reaction of 2,4,6-trihydroxytoluene is achieved at a yield of 71-97% to obtain the target product phloroglucinol. In summary, the method innovates a synthetic route of phloroglucinol in a simple, efficient, safe and mild path, and lays a solid foundation for achieving low-cost and large-scale preparation of phloroglucinol.
C07C 37/50 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
88.
DISPLAY DEVICE MODULE, DISPLAY DEVICE AND IMAGE DISPLAY METHOD
Disclosed in the embodiments of the present application is a display device module. The display device module may be applied to an augmented reality device, a vehicle-mounted head-up display device, etc. The display device module comprises an optical waveguide, a plurality of first out-coupling grating units and a plurality of second out-coupling grating units, wherein the plurality of first out-coupling grating units and the plurality of second out-coupling grating units are fixed to the optical waveguide in a staggered distribution manner; and the plurality of first out-coupling grating units and the plurality of second out-coupling grating units are respectively used for diffracting light of a first optical characteristic and light of a second optical characteristic in a light beam, and coupling out to human eyes for imaging. The display device module completes differentiated diffraction control by means of providing out-coupling grating units having different functions, so as to realize the decomposition and combination of a large field-of-view angle, the display of different depth images, the display of a color image, etc.
A frame for constructing nerve tract is provided, including microcatheters, a support, and a shell. The shell is configured to contain a culture medium inside. The microcatheters are configured to culture nerve cells. The multiple microcatheters are suspended and fixed into the shell by the support, the microcatheters are arranged along a direction from one end to the other end of the shell, catheter walls of the microcatheters are provided with through holes, the nerve cells in the microcatheter cannot flow out through the through holes, and the culture medium enters the microcatheter through the through holes. A method for constructing nerve tract based on the frame described is provided, including: filling the nerve cells wrapped with a collagen hydrogel stock solution into the microcatheters, and after the collagen hydrogel stock solution is completely cross-linked, placing the frame loaded with the nerve cells in a culture device for perfusion culture.
An insect-like jumping-flying robot is provided, which includes a flying module, a driving module and biomimetic bouncing legs. The flying module provides flying power via a propeller and a miniature model airplane motor, and front wings and rear wings provide lift, and moment required for attitude change. The driving module provides power with high power density via a brushless motor and is provided with two stages of deceleration to amplify the torque provided by the brushless motor. The first stage of deceleration is performed by a synchronous wheel set, and the second stage of deceleration is performed by a gear set. A driving push rod is used to transmit the power provided by the brushless motor to the biomimetic bouncing legs.
B62D 57/02 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
B62D 57/04 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track having other than ground-engaging propulsion means, e.g. having propellers
B64C 3/38 - Adjustment of complete wings or parts thereof
B64C 11/00 - Propellers, e.g. of ducted typeFeatures common to propellers and rotors for rotorcraft
A robotic arm holder capable of automatically bending and resetting, the holder comprising a double-shaft servo (1), a servo housing (2), a holding main body and an automatic bending and resetting device. The holding main body comprises two sets of holding claws. Each set of holding claws comprise a driving holding claw and a driven holding claw, wherein the driving holding claw and the driven holding claw are both composed of a rear-end holding main body (6) and a front-end holding main body (5), one end of the rear-end holding main body (6) being provided with a gear (4), and the other end of the rear-end holding main body (6) being hinged to the front-end holding main body (5); and the gear (4) of the driving holding claw is connected to a power output end of the double-shaft servo (1), and the gear (4) of the driven holding claw is hinged to the servo housing (2). In the same set, the gear (4) of the driving holding claw is in meshing transmission with the gear (4) of the driven holding claw. Automatic bending and resetting devices are arranged at hinge positions between the rear-end holding main bodies (6) and the front-end holding main bodies (5) of each set of holding claws, and the automatic bending and resetting device comprises an upper spring (13), a lower spring (14), a spring connecting column (12) and a spring baffle (11), wherein the lower spring (14) is sleeved on the spring connecting column (12), and the spring connecting column (12) penetrates the rear-end holding main body (6) to connect to the spring baffle (11); and two ends of the upper spring (13) are respectively connected to the spring baffle (11) and the front-end holding main body (5).
A wheel-leg mechanism is provided. The mechanism comprises a thigh, the upper end of the thigh is movably arranged in a mounting seat for a thigh motor, and is in transmission connection with a thigh motor, and the thigh motor is fixedly provided on one side of the mounting seat for a thigh motor; a shank motor is arranged at the side, away from the thigh motor, of the thigh, a suspension shock absorption system is connected to the shank motor, the shank motor is in transmission connection with a shank by a synchronous belt, the shank is movably connected to the tail end of the thigh, a wheel is movably mounted at the tail end of the shank, and the wheel is in transmission connection with a hub motor; and a braking system is provided on the wheel. A wheel-legged vehicle having the wheel-leg mechanism is further provided.
B62D 57/028 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members having wheels and mechanical legs
93.
Omnidirectional ghost imaging method and system based on the mechanism of bio-inspired retina-like
An omnidirectional ghost imaging system based on a mechanism of bio-inspired retina-like includes a projection system, a collimating lens, a spectroscope, a curved mirror, a bucket detector, a data acquisition card and an arithmetic system. According to the application, the logarithmic polar mapping characteristic of the bio-inspired retina-like structure is utilized to generate an annular pattern sequence of the bio-inspired retina-like, and the pattern sequence is utilized to modulate a light source. After being reflected by the target around the curved mirror, the light is projected onto the curved mirror and diffusely reflected. According to the reversible characteristics of the optical path, the light after diffuse reflection is reflected to the original light source by the half mirror and half lens, and the reflected light intensity with target information is received by the bucket detector.
The present invention discloses a biaxial supporting device for a rotary opposed piston engine, comprising a cylinder body, a fixing component, a thick axle and a thin axle; the interior of the cylinder body has a cavity; the fixing component is fixed on the outer side wall of the cylinder body; the thick axle is provided with a through hole coaxial with the first axle hole, and is rotatably connected with the through hole; the thin axle is in transition fit with the through hole of the thick axle, and is rotatably connected with the fixing component. The present invention has simple structure, can effectively reduce a diameter difference of two axles to ensure the relatively small diameter of the thick axle and the relatively high strength of the thin axle, and can effectively realize biaxial support of the rotary opposed piston engine.
F02B 55/14 - Shapes or constructions of combustion chambers
F01C 1/063 - Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
F02B 77/00 - Component parts, details, or accessories, not otherwise provided for
95.
POINT CLOUD SEGMENTATION AND VIRTUAL ENVIRONMENT GENERATION METHOD AND APPARATUS BASED ON POINTNET NETWORK
Disclosed in the present invention are a point cloud segmentation and virtual environment generation method and apparatus based on a PointNet network. The method comprises: acquiring, from a virtual environment, a point cloud in a data set to be processed; performing point cloud semantic segmentation on the point cloud by using an improved PointNet network; and according to the point cloud which has been subjected to semantic segmentation, replacing, in the virtual environment, an object with a virtual model having physical attributes, and generating a virtual object that includes all of the physical attributes. By using the technical solution of the present invention, the problems of real-time data transmission and environment reconstruction becoming difficult due to the huge number of point clouds, and in a point cloud environment, an operator having difficulty in distinguishing an object in the environment are solved.
A compound, a liposome, a liposome preparation method, a drug carrier, a pharmaceutical composition, and a use of the pharmaceutical composition in treating or preventing hyperlipidemia and diseases related thereto.
C07C 229/16 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings to carbon atoms of hydrocarbon radicals substituted by amino or carboxyl groups, e.g. ethylenediamine-tetra-acetic acid, iminodiacetic acids
C07C 229/24 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one carboxyl group bound to the carbon skeleton, e.g. aspartic acid
C07C 229/26 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one amino group bound to the carbon skeleton, e.g. lysine
A61K 48/00 - Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseasesGene therapy
C12N 15/00 - Mutation or genetic engineeringDNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purificationUse of hosts therefor
Disclosed in the present invention is a hypersonic vehicle trajectory tracking method. In the method, a hypersonic vehicle is detected by a detection station having a radar; after the hypersonic vehicle is detected, a certain number of sampling points are continuously selected in a period of time, and target state information is correspondingly obtained for each sampling point moment, so as to form a motion pattern of the hypersonic vehicle in a period of time, thereby providing a data basis for subsequent research or trajectory prediction; a plurality of possible target states are solved at each sampling point, which are referred to as virtual target states; by comparing an azimuth angle obtained by means of real detection of the radar with azimuth angles corresponding to the virtual target states, the virtual target states having great deviation are removed, and the virtual target states having less deviation are added, so as to form a new virtual target state group; and a detection result corresponding to the sampling point, i.e., a detected target state, is obtained by means of the weighted average of the new virtual target state group.
G01S 13/72 - Radar-tracking systemsAnalogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar
98.
BATTERY STATE OF HEALTH ESTIMATION METHOD FOR REAL NEW ENERGY VEHICLE
Pcc and substituting same into a model relationship between a battery cell IC curve peak and a battery cell SOH, so as to obtain an accurate battery pack SOH. According to the battery SOH estimation method, organically combining the existing and easily obtained cell-level SOH prediction equations with pack-level IC values calculated from massive real vehicle big data effectively solves the problems that the battery pack SOH cannot be measured and the estimation results cannot meet the accuracy requirements in the existing power battery SOH estimation, and avoids the manpower and material consumption caused by a large number of cyclic aging tests, calibration and data processing for battery packs.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
G01R 31/388 - Determining ampere-hour charge capacity or SoC involving voltage measurements
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
99.
HIERARCHICAL ENERGY-SAVING DRIVING METHOD FOR FUEL CELL VEHICLE
A hierarchical energy-saving driving method for a fuel cell vehicle. In upper-layer calculation, road information of all road sections, such as speed limits, road gradients, signal light positions, and signal timing of the road sections, is acquired; a fuel cell vehicle longitudinal dynamics model and a cost function which comprises vehicle required power and driving time are constructed; and then a vehicle optimal driving trajectory under global vehicle speed planning is calculated by means of an optimization algorithm. In lower-layer calculation, a fuel cell system model, a motor system model, and a power battery system model are established according to the power structure of the fuel cell vehicle. The model is convexified to establish a vehicle dynamics model meeting the standard paradigm of a convex optimization algorithm. An optimal vehicle speed trajectory calculated on the upper layer is input as a vehicle driving condition to solve the energy management problem of the vehicle. According to the calculation result, vehicle speed trajectories, power battery SOC trajectories, and fuel cell output power trajectories of all road sections are obtained. For the problem of optimal ecological driving of a fuel cell vehicle, a vehicle speed trajectory optimization method using the minimum required power of the vehicle and the arrival time of the vehicle as optimization goals is systematically provided; secondly, a standard paradigm of a convex optimization algorithm for solving fuel cell energy management is established, and the problem of energy management is quickly solved by means of iteration, thereby laying a foundation for implementing model-based prediction control.
B60L 58/40 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
G06F 30/15 - Vehicle, aircraft or watercraft design
G06F 30/20 - Design optimisation, verification or simulation
100.
VEHICLE TRACTION BATTERY SOH ASSESSMENT METHOD BASED ON ACCELERATED AGING TEST AND REAL VEHICLE WORKING CONDITION
A vehicle traction battery state of health (SOH) assessment method based on an accelerated aging test and a real vehicle working condition. By means of combining an accelerated aging test in a test environment with real vehicle data obtained from a real vehicle, a relationship used between an algorithm output value and a real value of a battery pack of the real vehicle, and a relationship between respective battery SOH feature parameters of a cell and a battery group are established. Laboratory data and real vehicle data are connected, a relationship between a battery cell and a battery group is analyzed, and the limitation of the research on the battery state of health estimation in the prior art being limited to a battery cell and lacking the state of health estimation for a battery pack is overcome. Therefore, which property parameters to be selected for SOH detection can be effectively determined, thereby improving the accuracy and reliability of a real vehicle data calculation result.
patents
