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Cut-resistant ultra-high molecular weight polyethylene fibers and preparation technology thereof
ActiveCN106149085AGuaranteed superiorityImprove comfortWet spinning methodsMonocomponent polyolefin artificial filamentFiberPolymer science
The invention discloses cut-resistant ultra-high molecular weight polyethylene fibers. The cut-resistant ultra-high molecular weight polyethylene fibers consist of ultra-high molecular weight polyethylene, expandable organosilicate clay, modified graphene and an antioxidant, wherein the expandable organosilicate clay accounts for 0.1%-10% of the total mass of the composite fibers; and the modified graphene accounts for 0.1%-5% of the total mass of the composite fibers. The invention provides the technical scheme of preparing cut-resistant fibers by using UHMWPE fibers as bodies (cut-resistant level of fiber bodies only can reach 2 levels or so generally at present), the technological process is simple, the cut resistance of the fibers which are not combined to other hard fibers can be good, and therefore, the comfort level of fiber products is improved.
Owner:南通恒尚新材料科技有限公司 +1
Method for planning path of unmanned aerial vehicle under multiple dynamic task target points
ActiveCN110470301AOptimize flight pathGuaranteed superiorityNavigational calculation instrumentsForecastingFlight directionUncrewed vehicle
The invention provides a method for planning a path of an unmanned aerial vehicle under multiple dynamic task target points. The method comprises the following steps of training an SOM neural network;determining winning points, access points and access sequences; determining a flight direction and an optimal path; carrying out iteration; and carrying out rolling optimization. According to the method, the unmanned aerial vehicle needs to periodically traverse all unmanned vehicles and carries out information exchange for a path planning problem of the unmanned aerial vehicle under a messengermechanism; the access sequences and the access points are solved and a flight path of the unmanned aerial vehicle is optimized by using an unsupervised competitive neural network SOM through considering the constraint conditions, such as motion curvature constraints of the unmanned aerial vehicle, dynamic characteristics of the unmanned aerial vehicle and a communication range of the unmanned aerial vehicle; and the unmanned aerial vehicle solves the optimization problem after accessing one unmanned vehicle every time by adopting a rolling optimization strategy in the process that the unmannedaerial vehicle traverses the unmanned vehicles, thereby dynamically updating the optimal path in the access process of the unmanned aerial vehicle and continuously ensuring the advantages of the decision.
Owner:SHANGHAI JIAO TONG UNIV
Mobile live broadcast system based on MPEG-2 standard
ActiveCN104038844AReduce packet lossAccurate playback speedTransmissionSelective content distributionData acquisitionBroadcast data
The invention discloses a mobile live broadcast system based on MPEG-2 standard. The mobile live broadcast system comprises a mobile equipment end, a streaming media server and a player end, wherein the mobile equipment end comprises a video data collection sub-system which includes an H264 video compressing and encoding module, an MPEG-2 standard packaging module and a thread pool module; the thread pool module is connected with an RTSP signaling module and an RTP transmission module; the streaming media server comprises a live broadcast data forwarding module, an RTCP code rate control module, a video-on-demand module and an RTSP signaling module; the mobile live broadcast system also comprises an RTSP signaling server for sending an RTSP request open signaling or an RTSP request stop signaling. The mobile live broadcast system based on MPEG-2 standard improves the packaging mode and transmission mode of video streaming, can be applied to a mobile phone terminal to build a new signaling system to perform unified management, and thereby communication stability of every part of the system are ensured to be good.
Owner:ZHEJIANG UNIV OF TECH
Two-phase stainless steel
InactiveCN1412337AStrong acid and alkali corrosion resistanceImprove wear resistance and corrosion resistanceAcid corrosionStress corrosion cracking
The composition of biphase stainless steel is formed from (wt%) 0.01-0.12% of C, 4.0-8.0 % of Mn, 12.0-25.0% of Cr, 0.20-1.5% of Al, 0.5-3.0% of Ni, 0.4-3.0% of Mo, Cu is greater than or equal to 1.0%, 0.2-2.5% of Si, 0.05-0.3% of N, 0.02-0.05% of Re, S is greater than of equal to 0.03%, P is greater than or equal to 0.035% and the rest is Fe. Said biphase stainless steel can resist alkali corrosion, resist acid corrosion, specially it can resist stress corrosion cracking under the condition of resisting chlorine ion and in oxidative acid medium, can resist seam currosion and resist cavity corrosion, and its strength is high and toughness is good, etc.
Owner:陈才金
Biphase stainless steel
InactiveCN101429629AStrong acid and alkali corrosion resistanceHigh strengthChemical compositionSodium thiocyanate
The invention relates to a two phase stainless steel, which comprises the following chemical components in weight percent: 0 to 0.12 percent of C, 4.0 to 8.0 percent of Mn, 12.0 to 25.0 percent of Cr, 0.20 to 1.5 percent of Al, 0.5 to 3.0 percent of Ni, 0.4 to 3.0 percent of Mo, 0 to 1.0 percent of Cu, 0.2 to 2.5 percent of Si, 0.05 to 0.3 percent of N, 0.02 to 0.05 percent of Re, less than or equal to 0.03 percent of S, less than or equal to 0.035 percent of P, and the balance being Fe. The two phase stainless steel has the advantages of high strength, good toughness, excellent wear resistance and corrosion resistance, in particular the superiorities of stress corrosion cracking resistance, complete corrosion resistance, intergranular corrosion resistance, and pitting corrosion resistance and vacuole corrosion resistance in sea water in solutions such as strong base (such as NaOH), chlor-alkali (NH4Cl), oxidizing acid (such as HNO3), sodium thiocyanate, phosphate solution, good hot and cold processability, and low cost.
Owner:顾贤良
Decorative concrete for building external envelope structure and preparation method thereof
The invention discloses a decorative concrete for building external envelope structures and a preparation method thereof. The decorative concrete is suitable for building external wall decoration, internal wall decoration and artistic sculptures and the like. The decorative concrete is composed of white Portland cement, low-viscosity decorative powder, ultrafine non-continuously-grading sand and a solution with addition of fibers in certain doping quantity. The decorative concrete can reach 50-100 years in service life, can achieve free regulation of colors, and satisfies the requirements in the aspects of strength, durability, decorative property, artistry, application property, self maintenance and the like.
Owner:江苏倍立达新材料科技有限公司
Multi-unmanned aerial vehicle cooperative path planning method
ActiveCN112327923AGuaranteed superiorityFast convergencePosition/course control in three dimensionsSimulationUncrewed vehicle
The invention provides a multi-unmanned aerial vehicle cooperative path planning method. The method comprises the following steps that: an unmanned aerial vehicle group acquires a starting point position, an obstacle point and an existing radar coordinate in a map environment, and establishes a combat environment two-dimensional grid map; an optimization objective of multiple unmanned aerial vehicles is constructed through the path length of each unmanned aerial vehicle and the intensity of threats imposed on each unmanned aerial vehicle on the basis of the obtained two-dimensional grid map; population initialization is realized by combining random path point generation and Q learning, and an initial population of the paths ofeach unmanned aerial vehicle is obtained; the initial populationis optimized by adopting an improved particle swarm algorithm according to the optimization objective; and the optimal particle of the population is obtained, the route of each unmanned aerial vehicle in the unmanned aerial vehicle cluster is output. According to the method, the overall benefit of the multiple unmanned aerial vehicles is taken as the optimization objective, and the safety and high efficiency of the flight path of each unmanned aerial vehicle are ensured.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Preparation method and application of antiviral extract of yin-nourishing Yinqiao (honeysuckle flower and fructus forsythiae) decoction prescription
InactiveCN106975021AThe method is simpleGood reproducibilityAntipyreticAnalgesicsChemistryHoneysuckle
The invention provides a preparation method and an application of an antiviral traditional Chinese medicine extract of a Yinqiao (honeysuckle flower and fructus forsythiae) decoction prescription. According to the invention, five preparation methods are provided, namely 1) a water extraction method, 2) an alcohol extraction method, 3) a water extraction and alcohol precipitation method, 4) a method combining water extraction and macroporous resin purification, and 5) a method combining alcohol extraction and macroporous resin purification. The invention is derived from a classic ancient prescription, namely 'Yinqiao Decoction' prescription prescribed within Chapter Middle-jiao of No.2 Volume in Differentiation on Febrile Diseases of WU Jutong who is a great master of febrile diseases in Qing dynasty; on the basis of the prescription, process optimization is conducted on the extract, various traditional Chinese medicinal preparations are prepared and major ingredients of active parts are defined. The traditional Chinese medicine extract of the Yinqiao decoction provided by the invention is in the form of an oral preparation. The prepared product (the traditional Chinese medicine extract) is detected, and a conclusion that the traditional Chinese medicine extract of the Yinqiao decoction is high in content of active ingredients is obtained.
Owner:江苏海王健康生物科技有限公司
Configuration optimization method of shuttle-carrier warehousing system
ActiveCN109081030AEasy to operateHomework coordinationControl devices for conveyorsStorage devicesConfiguration optimizationGenetic algorithm
The invention discloses a configuration optimization method of a shuttle-carrier warehousing system. The method takes shortest throughput time of the warehousing system, lowest system energy consumption and lowest warehouse cost as targets; a non-dominated sorting genetic algorithm with an elitist strategy is adopted for multi-target optimization; an optimal configuration scheme of the warehousingsystem is sought; an early decision basis is provided for warehouse planning of enterprise personnel; efficient and harmonious implementation of various tasks in a warehousing action is ensured; risks of the shuttle-carrier warehousing system due to inappropriate planning and design are reduced; and the method has greater practical application significance.
Owner:SHAANXI UNIV OF SCI & TECH
Durable concrete mix proportion optimization method based on RF-NSGA-II
ActiveCN111986737AHigh precisionImprove forecast accuracyChemical property predictionArtificial lifeComputational modelEngineering
The invention belongs to the technical field of concrete mix proportion optimization design, and particularly discloses a durable concrete mix proportion optimization method based on RF-NSGA-II. The method comprises the following steps: constructing a concrete durability index system, collecting sample data of each variable in the concrete durability index system, and establishing an original sample set according to the sample data; training a random forest regression calculation model by adopting the original sample set; evaluating the trained random forest regression calculation model to respectively generate random forest prediction models of concrete relative dynamic elastic modulus and chloride ion permeability coefficient; and taking the random forest prediction models as target functions, taking a value range of concrete materials and a mix proportion relationship among the materials as constraint conditions, and performing durable concrete mix proportion multi-target global optimization by adopting an NSGA-II model. The method is high in prediction precision, high in generalization capability and anti-noise capability, high in optimization precision, high in robustness andcapable of rapidly obtaining a globally optimal solution.
Owner:HUAZHONG UNIV OF SCI & TECH
Dynamic channel equalization method for orthogonal frequency division multiplexing system based on immune network
InactiveCN101247373ASuppress Intersymbol InterferenceFast convergenceMulti-frequency code systemsTransmitter/receiver shaping networksPopulationFrequency-division multiplexing
The invention relates to a balancing method of the dynamic channel of a frequency division multiplexing system based on an immunological network, belonging to the wireless communication signal processing technology field, comprising the steps of: step one, monitoring the current immunological network balancer, determining whether the channel environment has been changed; step two, if the current channel environment has been changed, initially adjusting the immunological network balancer adopting an initial immune response mechanism; step three, cloning amplify the immunological network balancer, getting the initial population of the immunological network balancer; step four, carrying out the immune operation based on the immune response mechanism and a vaccination mechanism, adjusting the parameter and structure of the immunological network balancer; step five, selecting the immunological network balancer which has the smallest training sample error as the final result of dynamic regulation, the balancing of wireless channel for the OFDM is realized, then returning to the monitoring state of the step one. The invention has strong robustness to the change of the channel, achieves a better performance in the declined channel.
Owner:SHANGHAI JIAO TONG UNIV
Moving-target adaptive direction-finding, positioning and tracking method based on multi-star collaboration
ActiveCN108827321AImprove stabilityReduced stabilityInstruments for comonautical navigationCovariance matrixCollaboration
The invention provides a moving-target adaptive direction-finding, positioning and tracking method based on multi-star collaboration. The method comprises following steps: multiple satellites in orbitsynchronously or asynchronously acquire time-varying sight line vector information of a moving target, one satellite is selected as a primary satellite, and the other satellites are used as auxiliarysatellites; the auxiliary satellites send sight line measurement data and positioning assisted data to the primary satellite through inter-satellite links; least square estimation of an initial stateis performed by a constant-velocity motion model, and an initial covariance matrix is set according to measurement noise of a target azimuth; a motion state and a covariance matrix of the target at the current observation moment are predicted by adopting a 12-state linear motion model; a Jacobian matrix of azimuth measurement values is calculated through combination of the positioning assisted data and the predicted motion state at the current moment, filter gain is calculated according to the measurement noise covariance matrix, and finally, the motion state of the target at the current moment is estimated according to real measurement.
Owner:SHANGHAI SATELLITE ENG INST
Method for discriminating neutral gear on basis of electronic neutral gear sensor
The invention provides a method for discriminating a neutral gear on the basis of an electromagnetic neutral gear sensor. The method includes storing a plurality of self-learning neutral gear duty cycle values in a memory, reading the self-learning neutral gear duty cycle values after a vehicle is powered on, solving a median value or an average value of the self-learning neutral gear duty cycle values, then using a complementary value of the median value or the average value as a base point of a neutral gear duty cycle discriminating range, judging whether duty cycle values of currently outputted first PWM (pulse width modulation) waves are in a range with the base point as the center or not, and determining that the vehicle is in the neutral gear if the duty cycle values of the first PWM waves are within the range; performing self-learning on the neutral gear duty cycle values, and storing duty cycle values of second PWM waves which are currently outputted by the electromagnetic neutral gear sensor so that the duty cycle values of the second PWM waves can be used when the vehicle is powered on for the next time. The method has the advantages that the base point of the range for discriminating the neutral gear duty cycle values can be acquired by a software algorithm, so that self-learning, self-correcting and self-compensating can be performed on a neutral gear duty cycle, the neutral gear discriminating accuracy and instantaneity can be improved, and the adaptability to different types of vehicles can be improved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD
Composite sand mould forming process for producing casting fireproof materials
ActiveCN102672794AQuality improvementSolve the easy collapse boxCeramic shaping apparatusThermal insulationRefractory
Owner:RUITAI MATERIALS TECHNOLOGY CO LTD +1
Preparation method of traditional Chinese medicine extract of decoction capable of invigorating spleen yang and tonifying stomach and application thereof
PendingCN108743892AGuaranteed superiorityEfficient enrichmentDispersion deliveryDigestive systemActive componentTraditional medicine
The invention provides a preparation method of a decoction capable of invigorating spleen yang and tonifying stomach and application thereof. The decoction is derived from the decoctions capable of invigorating spleen yang and tonifying stomach in Treatise on Spleen and Stomach which is written by Li Dongyuan in Jin Dynasty and is abbreviated as Decoctions capable of Invigorating Spleen Yang and Tonifying Stomach in full texts of patents. The invention provides the following six preparation methods: (1) a water extraction method; (2) an alcohol extraction method; (3) a water extraction and alcohol precipitation method; (4) a method with combination of water extraction and macroporous resin purification; (5) a method with combination of alcohol extraction and macroporous resin purification;and (6) a classic decoction preparation method based on substances of classical famous prescriptions. The process for preparing the extract in the decoction can be optimized, so that the decoction can be prepared into various traditional Chinese medicine preparations; main components of the active component are defined. The invention provides powder of the decoction capable of invigorating spleenyang and tonifying stomach and various traditional Chinese medicine extract oral preparations; the prepared product is detected; the basis of the active substance of the traditional Chinese medicineextract of the decoction capable of invigorating spleen yang and tonifying stomach is clear and definite; the active substance is composed of a plurality of effective components according to a certainratio; and the content of the active substance is higher.
Owner:湖北颐仁中医药研究总院有限公司
Inter-satellite laser interference frequency planning simulation verification system for time sequence reinforcement learning
ActiveCN113609755AGuaranteed superiorityIncrease flexibilityDesign optimisation/simulationMachine learningDecision modelSimulation
The invention discloses an inter-satellite laser interference frequency planning simulation verification system for time sequence reinforcement learning. The system comprises a laser interference optical platform group, a storage assembly and a display terminal, wherein the laser interference optical platform group comprises six laser interference optical platforms with the same structure, every two laser interference optical platforms form a pair, the frequency and the phase of laser are adjusted in real time according to a frequency planning scheme, and frequency shift is carried out on incident laser according to Doppler interference frequency information, so that the interference of the satellite in the space due to the Doppler phenomenon is simulated; the storage component is used for storing a pre-established and trained decision model, a frequency planning scheme determined by the decision model and Doppler interference frequency information corresponding to each moment of an experiment, and storing a frequency planning scheme selected in the experiment; the decision model is obtained by training through a time sequence backtracking reinforcement learning method; and the display terminal is used for displaying the Doppler interference frequency information and the laser beat frequency information in real time.
Owner:NAT SPACE SCI CENT CAS
Linear trans-impedance amplifier and design method and application thereof
InactiveCN110212875AReduce complexityStringent Requirements to Guarantee LinearityAmplifier modifications to reduce non-linear distortionAmplifier modifications to reduce noise influenceCapacitanceAudio power amplifier
The invention discloses a linear trans-impedance amplifier and a design method and application thereof. The trans-impedance amplifier is designed, and the trans-impedance amplifier meets the gain bandwidth requirement. For transmitting PAM-4 signals, the gain of the transimpedance amplifier is variable. In a low gain mode, changing the input end capacitance of the trans-impedance amplifier to enable the total input capacitance change multiple to be the same as the feedback resistance change multiple. The stability of adjusting the trans-impedance gain of the trans-impedance amplifier is guaranteed by adjusting the capacitance of the input end, and the high-speed optical receiving chip is applied to PAM-4 mode transmission and coherent light detection in the 50G / 200G / 400G Ethernet. According to the amplifier, the linearity of the TIA is effectively improved, and enough phase margin is ensured.
Owner:XI AN JIAOTONG UNIV
Data storage method and device and memory
PendingCN110413224AFast reading and writingRead and write speed dropsInput/output to record carriersData storeMode switch
The invention discloses a data storage method which comprises the following steps: dividing all storage blocks of a memory into SLC storage areas, and writing data through the SLC storage areas; counting the erasing times of each storage block, and determining a reference threshold value of storage mode switching; and converting the storage blocks of which the erasing times are greater than the reference threshold into TLC storage areaS. Meanwhile, the invention also provides a data storage device and a memory. Based on the data storage method provided by the invention, the service life can beensured while high-efficiency data reading and writing are ensured.
Owner:BIWIN STORAGE TECH CO LTD
Radial primary function network multi-user detection method based on immune dynamic regulation
InactiveCN101316117AAvoid adjustmentImprove real-time performanceError preventionSignaling processSource data
The invention relates to a radial basis function network multi-user detection method which is based on immunity dynamic adjustment, belonging to the field of wireless communication signal process technique; the radial basis function network multi-user detection method is characterized in that, known training data is sent at a gap of an emission part which is used for sending information source data packages; at the receiving part, the output weight values of a RBF multi-user detector are adjusted according to the training data, whether the user environment of CDMA system is changed or not is judged and whether the adjustment to the hidden layer parameters of the RBF multi-user detector is carried out continuously or not is determined; initial adjustment of the hidden layers of the RBF multi-user detector is carried out according to the sample points with big error in the training data; the hidden layer parameters of the RBF multi-user detector are adjusted by adopting an immunity optimization mechanism; RBF multi-user detector with best performance is selected as the result of the immunity dynamic adjustment. The detection method of the invention has strong adaptability for the channel changes in the CDMA system and the dynamic changes of the system environment such as user access-in, and achieves excellent detection performance and real-time performance.
Owner:SHANGHAI JIAO TONG UNIV
Graphene thin film macroscopic quantity preparation method
ActiveCN109518158AComplete structureEasy to prepareChemical vapor deposition coatingCvd grapheneMetal
The invention provides a graphene thin film macroscopic quantity preparation method which comprises the following steps: alternately fixing platy sheet metal base and sheet isolation material on a high temperature resistant rod, placing the high temperature resistant rod in a CVD reaction cavity, and carrying out deposition and cooling. Compared with a conventional graphene thin film preparation method which places a metal foil in a high temperature resistant plate, the graphene thin film macroscopic quantity preparation method solves the problem that the output of a single furnace is not highcaused by influence of height limitation of the high temperature resistant plate to the space utilization ratio of the graphene thin film in the CVD reaction cavity.
Owner:WUXI GRAPHENE FILM +1
Traditional Chinese medicinal extract for treating stomachache, hypochondriac pain, gastroenteric ulcer and depression, as well as preparation methodS and application thereof
InactiveCN108888686ASimple Addition of Drug EffectsPrescription proportion is clear and clearNervous disorderDigestive systemPurification methodsAlcohol
The invention provides a traditional Chinese medicinal extract for treating stomachache, hypochondriac pain, gastroenteric ulcer and depression, as well as six preparation methods and application thereof. The traditional Chinese medicinal extract is prepared from the following raw materials: pericarpium citri reticulatae viride, pericarpium citri reticulatae, peony, moutan bark, cape jasmine (roasted), rhizoma alismatis and rhizoma bolbostemmae in a weight ratio of 4:4:4:3:3:3:6. The six preparation methods include (1) water extraction method; (2) alcohol extraction method; (3) water extraction and alcohol precipitation method; (4) water extraction combined macroporous resin purification method; (5) alcohol extraction combined macroporous resin purification method; and (6) classic decoction preparation method (classic prescribed substance standard). According to the preparation methods, the extract process is optimized to prepare traditional Chinese medicinal preparations, and the mainingredient of active parts can be defined. The traditional Chinese medicinal extract oral preparation, namely the formula of liver-depressed and gastropyretic epigastralgia, is provided, the preparedproduct is detected to reflect clear and definite active substance foundation and relatively high content of the traditional Chinese medicinal extract, namely the formula of liver-depressed and gastropyretic epigastralgia.
Owner:湖北颐仁中医药研究总院有限公司
Forming equipment of transparent diamond-embedded floor board and manufacturing method of transparent diamond-embedded floor board
The invention provides forming equipment of a transparent diamond-embedded floor board and a manufacturing method of the transparent diamond-embedded floor board. The forming equipment comprises a base material diamond embedding system, a resin injection and forming and pre-treatment system and a resin pouring system. The forming equipment of the transparent diamond-embedded floor board and the manufacturing method of the transparent diamond-embedded floor board take epoxy resin as a transparent carrier for diamond embedding. The forming equipment is novel in overall structure design and simple to operate; a complicated process flow of manual diamond embedding of a traditional floor board is changed, and the diamond embedding efficiency of the whole forming equipment is improved substantially; the characteristics of high transmittance of light, high degree of finish and high hardness of the epoxy resin are utilized and the epoxy resin is attached to the surfaces of the floor board anddiamonds, so that the appearance rating of the floor board is improved substantially; and the manufacturing method is a novel floor board forming manufacturing technology and has very good market popularization performance in the future.
Owner:SCHOLAR HOME SHANGHAI NEW MATERIAL CO LTD
Preparation method of traditional Chinese medicine extract of decoction capable of clearing lung heat and application thereof
InactiveCN108743893AGuaranteed superiorityEfficient enrichmentRespiratory disorderPlant ingredientsAlcoholActive component
The invention provides a preparation method of a decoction capable of clearing lung heat and application thereof. The decoction is derived from classical ancient prescriptions in Re-revised Yan's Health Preservation Prescriptions which is abbreviated as Decoctions capable of Clearing Lung Heat in full texts of patents. The invention provides the following six preparation methods: (1) a water extraction method; (2) an alcohol extraction method; (3) a water extraction and alcohol precipitation method; (4) a method with combination of water extraction and macroporous resin purification; (5) a method with combination of alcohol extraction and macroporous resin purification; and (6) a classical decoction preparation method based on substances of classical ancient prescriptions. The process forpreparing the extract in the decoction can be optimized, so that the decoction can be prepared into various traditional Chinese medicine preparations; main components of the active component are defined. The invention provides the extract of the decoction capable of clearing lung heat and various traditional Chinese medicine extract oral preparations; the prepared product is detected; the basis ofthe active substance of the the traditional Chinese medicine extract of the decoction capable of clearing lung heat is clear and definite; the active substance is composed of a plurality of effectivecomponents according to a certain ratio; and the content of the active substance is higher.
Owner:湖北颐仁中医药研究总院有限公司
Digital twinning-based multi-mode terminal access system and method under 5G fusion network architecture
PendingCN114189888AAvoid uncertaintyGuaranteed superiorityAssess restrictionOptimal decisionNetwork architecture
The invention discloses a multi-mode terminal access system and method under a 5G fusion network architecture based on digital twinning, the system is a three-layer double-closed-loop digital twinning network architecture, the architecture comprises three layers of structures from top to bottom, and the three layers of structures sequentially comprise a network application layer, a digital twinning layer, a digital twinning layer, a digital twinning layer, a digital twinning layer, a digital twinning layer and a digital twinning layer from top to bottom, waiting for next mapping; a digital twin network layer in which a digital network simulates the operation of an actual physical network in real time and in advance and issues control to the actual physical network according to a simulation result; and the bottom layer is a physical network layer which is connected with the twinning network layer through an actual interface, continuously provides the actual communication environment condition for the digital twinning network through data acquisition, and simultaneously receives and executes the optimal decision result simulated by the digital twinning network. The method has good real-time performance and expansibility, and is beneficial for processing network conditions in a variable environment.
Owner:716TH RES INST OF CHINA SHIPBUILDING INDAL CORP
Method for starting field programmable gate array (FPGA)/digital signal processor (DSP) embedded system
ActiveCN102999363AGuaranteed superiorityReduce complexityProgram loading/initiatingPrinted circuit boardSoft core processor
The invention discloses a method for starting a field programmable gate array (FPGA) / digital signal processor (DSP) embedded system. According to the method, the reconfiguration of the FPGA and a starting process of a DSP are controlled and finished through an embedded soft-core processor NIOS II based on an active serial configuration chip EPCS special for the FPGA. Compared with a starting method based on an external parallel FLASH chip, the method has the advantages that the board level printed circuit board (PCB) routing complexity of the FPGA / DSP and the system size are reduced.
Owner:BEIJING RES INST OF TELEMETRY +1
A laser photolithography method PCB solder resist pattern transfer and forming process
InactiveCN109041439AReduce production process linksReduce production capacityConductive material chemical/electrolytical removalResistChemical reaction
A laser photolithography PCB solder resist pattern transfer and forming process comprises that following step: 1) surface treatment of the process board: cleaning the surface of the process board to ensure that the surface is coated with ink under the condition of no impurity oxidation; 2) coat photosensitive ink: covering that surface of the whole work plate cop foil by a coating wheel to form anink with uniform thickness; 3) Ink drying: The solvent in the wet ink is evaporated through the uniform temperature of the flintlock furnace to form 18-24UM dry film; 4) laser photoresist pattern: utilizing laser and line pattern data to generate beams with different wavelengths of energy, directly scanning that work plate with photosensitive dry film, and utilizing photochemical molecular bonding principle to solidify and adhere the ink; 5) developing a solder resist pattern: for a solder resist pad pattern by chemical reaction washing of a developing liquid and an ink without molecular bonding; 6) soldering of that solder resist ink: solidifying the ink through a high-temperature oven and a drying path.
Owner:ZHEJIANG LEUCHTEK ELECTRONICS
Service recovery method and device, electronic equipment and storage medium
PendingCN112866833AAvoid resource conflictsGood analog computingMultiplex system selection arrangementsPathPingStation
The embodiment of the invention relates to the field of communication, and discloses a service recovery method and device, electronic equipment and a storage medium. In the invention, the service recovery method comprises the following steps: acquiring a rerouting calculation result corresponding to each potential fault of an optical layer network; when detecting that the optical layer network has a fault, querying a rerouting calculation result corresponding to the fault in rerouting calculation results corresponding to each potential fault; sending a service recovery instruction to the related site according to the queried rerouting calculation result, so that the related site carries out service recovery; wherein the related site is a site through which a recovery path corresponding to the rerouting calculation result passes, the rerouting calculation result corresponding to each potential fault of the network is obtained in advance, the pre-stored rerouting calculation result is directly inquired when the fault occurs, the rerouting calculation result corresponding to the fault is determined, and the recovery path corresponding to the rerouting calculation result is recovered. And according to the determined calculation result, a service recovery instruction is sent to a related station to carry out service recovery, so that the service recovery efficiency is greatly improved.
Owner:ZTE CORP
Method and device for allocating carrier resources to user equipment (UE)
ActiveCN102076089AGuaranteed superiorityReduce the numberWireless communicationCarrier signalEngineering
The invention provides a method and a device for allocating carrier resources to user equipment (UE). The method comprises the following steps that: a base station divides component carriers into different path loss measuring groups; and when allocating the carrier resources to the UE, the base station allocates the carrier resources to the UE in the same path loss measuring group, and the UE is needed to feed only a path loss measuring value shared by all carriers back to the base station at the time. In the method, the path loss measuring groups are arranged, so that the superiority of carrier aggregation is ensured, the number of path loss measuring feedback values is reduced, and system overhead is effectively reduced.
Owner:常熟市知识产权运营中心有限公司
A Three-cylinder Rolling Rotor Compressor
InactiveCN103807174BLarge displacementLoad torque balanceCrankshaftsEccentric-shaftsLoad torqueCrankshaft
Owner:吴月广
Semiconductor device and manufacturing method thereof
InactiveCN103545355AAvoid the effect of thicknessGuaranteed superioritySemiconductor/solid-state device manufacturingSemiconductor devicesEquivalent oxide thicknessGate dielectric
Disclosed are a semiconductor device and a manufacturing method thereof. The semiconductor device comprises a substrate, a high k gate dielectric layer, an oxygen absorption layer and gate electrodes, wherein the high k gate dielectric layer is positioned on the upper surface of the substrate, the oxygen absorption layer is positioned on the upper surface or the lower surface of the high k gate dielectric layer, and the gate electrodes are positioned on the upper surface of the high k gate dielectric layer. The manufacturing method of the semiconductor device includes the steps: providing the substrate; forming the high k gate dielectric layer on the upper surface of the substrate; forming the oxygen absorption layer on the upper surface of the substrate or on the upper surface of the high k gate dielectric layer before or after forming the high k gate dielectric layer; forming the gate electrodes on the upper surface of the high k gate dielectric layer. The semiconductor device is provided with thin equivalent oxide, and the performance of the semiconductor device can be improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP
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