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71results about How to "Overcome the situation" patented technology
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Dynamic data scheduling method in multi-path transfer protocol
ActiveCN104994036AAccurate transmissionImprove transmission performanceData switching networksVEGAS algorithmDynamic data
The invention discloses a dynamic data scheduling method in a multi-path transmission control protocol (MPTCP), comprising the following steps: the round-trip time RTT and the round-trip time variation RTTVAR of each path are measured; whether each path is available is judged according to the RTT and RTTVAR, the congested paths are abandoned, and the available paths are retained; the data transmission capacity of each path is estimated; and a data transmission quota is allocated for each path based on the estimated data transmission capacity and the current sending window, and a scheduler allocates transmission data according to the transmission quota. According to the scheme, the essence of a TCP Vegas algorithm is absorbed on the basis of Lowest_RTT, and improvement is made on the basis, which is equivalent to adding a congestion avoidance control function to the scheduler. The method has far-reaching significance to avoiding path congestion and enhancing the overall transmission capacity of the paths.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Image processing device and image processing method
InactiveCN103377468AImprove visual effectsOvercome the \"merger effect\"Image enhancementContrast levelImaging processing
The invention provides an image processing device and an image processing method corresponding to the image processing device. The image processing device comprises an original image storage part, a histogram detection part, a histogram statistic part, a probability density calculation part, a probability density accumulation part, a histogram equalization calculation part which obtains a preprocessing image, a histogram equalization image storage part, a local background calculation part, a luminance threshold value calculation part, a frequency-covering threshold value calculation part, a threshold-identifiable deviation calculation part, a contrast ratio calculation part, a threshold contrast ratio calculation part, a grey-value-correction calculation part and a judgment part, wherein the judgment part judges and corrects the preprocessing image and obtains an optimized image on the basis of the above parts. The image processing device and the image processing method improve the image visual effect and image component definition function based on the human visual characteristics.
Owner:上海竞天科技股份有限公司
Diagnostic method for insect attacks on crops by utilizing volatile matter
InactiveCN102353701AOvercoming time-consuming and laboriousOvercome the situationWithdrawing sample devicesMaterial resistanceSensor arrayElectrical resistance and conductance
The invention discloses a diagnostic method for insect attacks on crops by utilizing a volatile matter. The method comprises the following steps: 1) placing a crop seedling to be detected in a static headspace sampler and standing the crop seedling; 2) introducing headspace gas in the static headspace sampler into an electronic nose sensor array reaction chamber, wherein, a response signal is obtained through reaction between a sensor array and the headspace gas, and the response signal is the ratio of the resistance obtained after sensors contact with the headspace gas to the resistance obtained when the sensors pass through clean air; 3) extracting an electronic nose signal at the 60th second as characteristic data and carrying out feature analysis on the characteristic data about an insect attack by using the methods of principal component analysis and linear discriminant analysis; 4) establishing a mathematical model of the relationship between response signals of the sensors and degrees of the insect attack through gradual discriminant analysis and an artificial neural network. The method provided in the invention overcomes defects in existing detection technology for insect attacks on crops; the invention has the advantages of a simple detection method, easy operation, a short period of time, high precision and capacity of accurately detecting degrees of insect attacks on crops.
Owner:ZHEJIANG UNIV
Blast furnace bellless furnace top distributor
ActiveCN101173321AExtended service lifeFully lubricatedBell-and-hopper arrangementBlast furnace detailsEngineeringShaft furnace
The invention discloses a bell-less top distributing gear of furnace, belonging to technical field of metallurgical industry. The invention adopts sealed cooling, a water-cooling venturi tube with pipe laying and a water-cooling chassis. A motor drives a chute to rotate and tilt; wherein, the motor drives the nut of the ball screw assembly to rotate and then drives the lead screw and the lifting rotary frame connected with the lead screw to move up and down in order to achieve chute to tilt for Alpha angle. The invention has the advantages of high coaxiality, high transmitting precision, long service life of the critical component, easy manufacture, light weight and low cost. The tilting Alpha angle of the chute and the stationarity of the tilting movement of the chute can be checked during the producing process of the furnace by the invention. The invention can be used in charging operation of furnace roof and also is suitable for shaft furnace or smelting reduction furnace which need to feed from the roof to the closed space and distribute regularly.
Owner:CISDI ENG CO LTD
Pressure induction key structure and terminal device having same
ActiveCN106301324AOvercome strengthOvercome the situationInput/output for user-computer interactionElectronic switchingKey pressingTerminal equipment
The invention belongs to the technical field of keys, especially relates to a pressure induction key structure and a terminal device having the same, for solving the technical problems of relatively large space occupation, proneness to water inflow, relatively weak overall structural strength, relatively poor reliability and proneness to wrong touch of mechanical keys in the existing terminal devices. According to the pressure induction key structure provided by the invention, pressure measurement is realized by a simply supported beam type pressure induction component. When a user applies a pressure to a pressing area, the pressure is transferred onto a first fulcrum by a structural frame of the terminal device, and then the pressure is transferred onto an elastic bearing plate. Meanwhile, since a strutting piece is fixed to the structural frame of the terminal device, a reactive force of a force applied by the user acts on a second fulcrum, and the pressure is entirely concentrated on the elastic bearing plate. The elastic bearing plate generates deformation under the action of the pressure. A pressure sensor detects the deformation of the elastic bearing plate, the pressure sensor outputs a pressure signal to a pressure induction detection circuit, and the pressure signal is output to a processor after being analyzed and processed for carrying out an action.
Owner:SHENZHEN NEW DEGREE TECH
Surface observation microseism speed model correcting method based on amplitude stack
ActiveCN105807316AAccurate correctionAmong the calibration methods, most of them are based on accurate perforation positioning.Seismic signal processingReverse timeSignal-to-noise ratio (imaging)
The invention relates to a surface observation microseism speed model correcting method based on amplitude stack.Starting from the principle of a reverse time migration amplitude stack method, a very fast simulated annealing method is combined, seismic phase first arrival information does not need to be picked up, and a speed model is corrected by monitoring the energy focusing condition on a perforation point; perforation point relocation accuracy is used for judging whether the speed model can be used for follow-up microseism location.The problem that the maximal value and the maximum value are not separated in an existing algorithm can be effectively solved, the maximum value E of energy focusing on the perforation point can be found accurately, the perforation position is located accurately, and the speed module is effectively corrected.Noise interference can be effectively inhibited by adopting the reverse time migration amplitude stack algorithm, and a good location effect can still be obtained with a low signal-to-noise ratio.The more the speed model is close to an actual model, the more accurate perforation location becomes.Whether the speed model can be used for follow-up microseism location or not is judged according to perforation point relocation accuracy.
Owner:JILIN UNIV
Intersection traffic flow detection method and device based on directional antenna
ActiveCN104658251AReal-time Traffic Condition MonitoringWide coverageDetection of traffic movementTraffic capacityWireless transmission
The invention discloses an intersection traffic flow detection method and device based on a directional antenna. The method comprises the following steps: sending signals by using a vehicle-mounted broadcast unit, wherein the signals are received by a beacon receiving device to collect beacon messages of vehicles; transmitting the collected beacon messages of the vehicles to a data processing module and analyzing the beacon messages of the vehicles to realize statistics of the traffic flow and identify the traveling directions of the vehicles; transmitting traffic detection information obtained by the data processing module to a remote monitoring system through a wireless transmission module so as to realize statistics of the traffic flow and remote monitoring; storing information in the monitoring system by using a data storage module. According to the method and device, the traffic flow is detected by using the directional antenna, so that the defects that mutual interference easily happens and the detection range is narrow in a conventional method adopting Bluetooth and the like are overcome; the coverage of the directional antenna is wide, so that the detection of traffic flow is relatively accurate and the traffic flow is accurately measured under the specific conditions that vehicles turns in the intersection regions.
Owner:CHANGAN UNIV
Asphalt concrete pavement stress-strain detecting method and system
InactiveCN101246157AReduce adverse effectsImprove survival ratePreparing sample for investigationMaterial testing goodsUltrasound attenuationEngineering
The invention discloses a method for testing asphalt concrete pavement stress-strain and the special test system thereof, which belongs to the research field of asphalt concrete pavement structural performance, the characteristic of the invention resides in that: concrete precast block containing stress-strain sensor is buried in test pavement for collecting pavement response data. Compared with prior art, the invention asphalt concrete pavement stress-strain test method and the special test system thereof have advantages of high sensor survival rate, accuracy measurement and so on, which can be applied in the attenuation discipline test research of pavement structure and material property under the action of traffic and natural environment.
Owner:山东省交通科学研究所
Method and system for processing consumption point data
InactiveCN101329756AOvercoming integral failureOvercome the situationRadio/inductive link selection arrangementsMarketingCode pointData treatment
The invention discloses a data treatment method of consumption points and a system thereof; wherein, the data treatment method of the consumption points comprises the steps that: a two-dimension bar code scanning device acquires client marking information by a mobile phone through scanning a two-dimension bar code point message; the two-dimension bar code scanning device sends point inquiry requests carrying the client marking information to a point administration platform; the point administration platform inquires client point information corresponding to the client marking information according to the client marking information, and feedbacks the client point information to the two-dimension bar code scanning device. By using the mobile phone that can memorize two-dimension bar code to carry two-dimension bar codes that can represent the client identification information, the expenses on the cost of point cards of clients are saved, the quantity of point cards carried by the client is reduced, and the problems caused by forgetting, damage and missing, etc., of point cards can be avoided, thus bringing great consumption convenience to clients.
Owner:MY3IABEI JINGTECH +2
Normalization alignment mark combination and its alignment method and alignment system
ActiveCN101271281AOvercoming multi-step alignment scan signalsOvercome convexPhotomechanical exposure apparatusMicrolithography exposure apparatusEngineeringProjection system
The invention discloses an uniformization aligning mark combination and an aligning method and an aligning system thereof. The uniformization aligning mark combination consists of a porous uniformization aligning mark arranged at the target composing component of a photoetching device aligning system and a single-pore uniformization aligning mark arranged at a probe composing component. The porous uniformization aligning mark consists of four transparent elements and a chromeplated shielding layer. The single-pore uniformization aligning mark consists of a transparent element and a chromeplated shielding layer. The method uses the single-pore uniformization aligning mark at the probe composing component and a probe device under the single-pore uniformization aligning mark to process twice two-dimensional aligning scanning to an image formed by the porous uniformization aligning mark at the target composing component, and radiation measure information and position measure information obtained by the two times of canning are integrated for an aligning signal processing, which obtains the position relation of a space image formed by the target composing component at a target composing component bearing table through a projection system relative to a probe composing component bearing table.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
Traffic Internet-of-Things testing method based on fault simulation
InactiveCN103997435AOvercome the situationOvercoming positioningData switching networksTest efficiencySimulation
The invention discloses a traffic Internet-of-Things testing method based on fault simulation. The traffic Internet-of-Things testing method is characterized in that a testing machine is connected to a tested system through a network switching device and gateway devices, and the testing machine executes the following steps: (1) a traffic Internet-of-Things simulation environment is built; (2) simulation testing data are generated, and on the basis of the built traffic Internet-of-Things simulation environment, the simulation testing data under the normal condition and the simulation testing data under the fault condition are generated; (3) testing is carried out, a testing script transmits the simulation testing data generated in the step (2) to the tested traffic Internet-of-Things system through the network switching device and the gateway devices, collects the operation result of the tested system and returns the operation result to the testing machine through the network switching device and the gateway devices, and the testing machine analyzes and outputs the testing result. The traffic Internet-of-Things testing method mainly solves the problem that faults appearing in existing traffic Internet-of-Things engineering construction are difficult to disinter and position, and has the advantages that the testing efficiency is improved, the testing cost is reduced, and the traffic Internet-of-Things testing method is suitable for practical application.
Owner:CHINA ACAD OF TRANSPORTATION SCI
Quick-release positioning pin structure
InactiveCN102678711AOvercome only shear forceOvercome the situationSnap-action fastenersBoltsAxial forceEngineering
The invention discloses a quick-release positioning pin structure which is composed of a positioning pin sleeve, a quick-release pin and a quick-release screw sleeve. The positioning pin sleeve is in taper fitting with the quick-release pin, the quick-release screw sleeve is matched with external threads of the positioning pin sleeve and the quick-release pin respectively through internal threads, and force application handles are respectively arranged on the quick-release screw sleeve and the quick-release pin. Mechanical radial force of a butting hole site is transformed to axial force by utilizing taper, the condition that traditional cylindrical latch pin only has shearing force and friction force, the extraction strength of the cylinder pin is greatly reduced, manual operation is convenient, and a quick-release positioning function is realized.
Owner:XIAN AIRCRAFT IND GROUP
Photovoltaic module MPPT algorithm based on ripple association method
InactiveCN108336758AAccurate trackingFast trackDc-dc conversionSingle network parallel feeding arrangementsTransient stateControl signal
The invention relates to a photovoltaic module MPPT algorithm based on a ripple association method. The algorithm is technically characterized mainly in that a photovoltaic battery model and a Boost circuit model are created; a ripple signal with the frequency equal to a switch frequency is obtained through a second-order improper integral-orthogonal signal generator; a reference voltage value isupdated, an error signal between the reference voltage value and an actual voltage value is adopted as input of a PI controller, the output of the PI controller is adopted as a duty ratio modulating signal, and a control signal obtained by means of a PWM circuit acts on a switch tube of a Boost circuit; an AND triggering threshold value of a transient state detector is created, when the radiationintensity of the sun changes suddenly, the transient state detector works, and the output of a sampling retainer is adopted as a reference voltage value of the next moment. The algorithm is reasonablein design, easy to implement and capable of enabling a photovoltaic grid-connected system to quickly track a maximum power point under different illumination, temperature and load conditions, enabling the system to stably work around the maximum power point and improving the conversion efficiency of photovoltaic batteries.
Owner:TIANJIN UNIV
Industrial protection non-woven material and manufacturing method thereof
ActiveCN103526454AImprove breathabilityExcellent flame retardantFlame-proof filament manufactureNon-woven fabricsPolyesterEngineering
The invention discloses an industrial protection non-woven material and a manufacturing method of the industrial protection non-woven material. The industrial protection non-woven material comprises a PP spunbond non-woven fabric layer, an ES-mixed non-woven fabric layer and a PP melt-blown non-woven fabric layer sandwiched between the PP spunbond non-woven fabric layer and the ES-mixed non-woven fabric layer. Fire retardant mixtures of a first component are added to the PP spunbond non-woven fabric layer, and fire retardants of second components of different types are added to the PP melt-blown non-woven fabric layer. Mixed fibers of ES fibers, polyester fibers and viscose fibers are combed into a net to form the ES-mixed non-woven fabric layer. The industrial protection non-woven material has the moisture percentage similar to the moisture percentage of a human body, good gas permeability and soft and fluffy hand feelings, is comfortable to wear, has high tension stress and morphological stability in all directions, protects the structure of the melt-blown non-woven fabric layer and has the good inflaming retarding characteristic and the environment protection effect, and a guarantee is provided for the protection performance of the industrial protection non-woven material.
Owner:东营俊富净化科技有限公司
Evidence storage and processing method and device for judicial chain, equipment and medium
ActiveCN110602214AImprove business processing performanceImplement batch uploadData processing applicationsUser identity/authority verificationUser needsNetwork packet
The embodiment of the invention discloses an evidence storage and processing method and device of a judicial chain, equipment and a medium, and relates to the technical field of block chains. According to the specific implementation scheme, the method comprises the steps of obtaining a primary evidence storage transaction request initiated according to a user demand for batch data packets; executing the primary evidence storage transaction request, and performing uplink storage in an evidence storage chain by taking the total evidence information of the batch data packets as the generated primary evidence storage transaction data; according to each evidence in the batch evidence package corresponding to the primary evidence storage transaction data, initiating a secondary evidence storagetransaction request to a judicial chain to request the judicial chain to generate corresponding secondary evidence storage transaction data, and performing uplink storage in the judicial chain; obtaining a secondary evidence storage transaction data identifier from the judicial chain, and establishing a mapping relationship with the primary evidence storage transaction data identifier; and generating an evidence storage certificate according to the mapping relationship and feeding back to the user. The service processing capability and the evidence chaining efficiency of the judicial chain canbe improved.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
Variable-scale unidirectional gravity sampling vector matching and positioning method based on particle filtering
ActiveCN105737850AOvercome non-linearOvercome the situationNavigation by terrestrial meansNavigation by speed/acceleration measurementsGravity assistComputer science
The invention discloses a variable-scale unidirectional gravity sampling vector matching and positioning method based on particle filtering. The variable-scale unidirectional gravity sampling vector matching and positioning method comprises the following steps: step 1, establishing a gravity assisted inertial navigation single-point matching model; step 2, obtaining a matching point based on the particle filtering by utilizing the gravity assisted inertial navigation single-point matching model; step 3, judging whether a gravity assisted inertial navigation single-point matching point is credible or not; and step 4, calculating a final result of a current matching point. According to the variable-scale unidirectional gravity sampling vector matching and positioning method, motorized navigation of a carrier is considered, the disadvantage that an original gravity vector matching algorithm is invalid under the condition of non-linear or non-uniform-speed navigation of the carrier is overcome, and matching errors are reduced.
Owner:BEIJING CNTEN SMART TECH CO LTD
Low-voltage distribution network three-phase unbalanced treatment system and method controlled by phase-change switch cluster
InactiveCN108964093AReduce imbalanceReduce lossPolyphase network asymmetry elimination/reductionPolyphase network asymmetry reductionDistribution transformerLow voltage
The invention relates to a low-voltage distribution network three-phase unbalanced treatment system and method controlled by a phase-change switch cluster. The system has the following technical characteristics: the system comprises a current transformer, a main control terminal, main control switches and intelligent phase-change switches; the current transformer is installed on the low voltage side of a transformer and connected to a three-phase power grid, and is used to measure a current signal of the low voltage side of the transformer and a beginning end of a three-phase branch line; themain control terminal is used to monitor the unbalance degree of a three-phase line on the low-voltage side of the distribution transformer, collect three-phase current data at the beginning ends of three-phase branch lines in real time and issue a phase-change instruction to the intelligent phase-change switches; the main control switches are connected with the intelligent phase-change switches,and is used to monitor the unbalance degree of the beginning ends of the three-phase branch lines and perform phase-change control on the intelligent phase-change switches; and the intelligent phase-change switches are connected with loads, and are used to receive the phase-change instructions of the main control terminal or the main control switches to switch phases. The imbalance degree of the low-voltage side of the distribution transformer and the beginning ends of the three-phase branch lines can be effectively reduced.
Owner:ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +3
Novel assembly type seamless expansion device and construction method thereof
ActiveCN108035245AReduce adverse effectsReduce the impactBridge structural detailsWhole bodySurface roughness
The invention relates to a novel assembly type seamless expansion device and a construction method thereof. The novel assembly type seamless expansion device comprises main girder span expansion device bodies arranged on a construction bridge and expansion device bodies arranged on the portions, at bridge abutment expansion seams, of bridge abutments of the construction bridge, and each main girder expansion seam and each bridge abutment expansion seam are each provided with one expansion device body. Accordingly, the device and a deck can be paved to form a continuous whole body, the problemsthat bridge expansion seams are prone to bridge surface roughness, dislocation, distortion, expansion seam irregularity and the like can be solved, and driving is stable and comfortable; by arrangingrubber pads between comb type span seam steel plates and telescopic corrugated steel plates, driving noise can be reduced, the defects that traditional expansion seams are prone to leakage, and the service life in bad conditions is short can be overcome, and the maintenance workload is low. In addition, the device has the advantages that the input cost is low, the stress performance is good, thedurability is good, the practicability is high, and maintaining and replacing are conducted conveniently.
Owner:FUZHOU UNIV
Electric rotating lifting pot
InactiveCN102475499AAvoid turning into cokeAvoid the situationPressure-cookersEngineeringPressure cooking
The invention relates to an electric rotating lifting pot, comprising a pot body, wherein the pot body is placed on a lifting hook on a lifting support, the lifting hook is connected with an output shaft of an electric motor, and the pot body is a pressure cooker. In the electric rotating lifting pot provided by the invention, the pot body is placed on the lifting hook of the lifting support, the lifting hook is connected with the output shaft of the electric motor, and the bottom of the pot can be heated and the pot body rotates when the electric rotating lifting pot is used, thus heating is uniform, the condition that congee at the bottom is coked while the congee at the upper part is still not uncooked can be avoided, defects when the traditional pot is used for cooking congee are overcome, food is saved, cooked congee has good taste, and the electric rotating lifting pot provided by the invention is simple and easy to operate.
Owner:张宇贤
Comprehensive assessment method for student lecture attending level based on attention and concentration degree
ActiveCN110009210AOvercome class attentionOvercome blurred focus boundariesCharacter and pattern recognitionNeural architecturesComputer scienceAssessment methods
Owner:BEIJING NORMAL UNIV ZHUHAI
Multi-measurement-point temperature sensor
PendingCN109443580AImprove wear resistanceSmall footprintThermometer detailsThermometers using electric/magnetic elementsMeasurement pointThermocouple
The invention discloses a multi-measurement-point temperature sensor. The multi-measurement-point temperature sensor comprises metal armor layers, a plurality of thermo wires are arranged orderly in the metal armor layers, the multi-measurement-point temperature sensor is characterized in that the thermo wires are isolated through aluminum oxide insulating layers, the thermo wires and the metal armor layers are isolated through aluminum oxide insulating layers, the thermo wires form multiple temperature measurement points in the metal armor layers in the axial direction, further, the thermo wires comprise one positive thermo wire and the negative thermo wires of which the number is matched with that of the temperature measurement points, and the position, corresponding to one negative thermo wire, of each temperature measurement point is welded with the positive thermo wire. The multi-measurement-point temperature sensor has the advantages that an insulating filler of a thermocouple ismade from aluminum oxide, thereby being capable of overcoming the defects that an insulating material is leaked, the insulating performance is reduced, and the thermocouple detection is out of orderdue to the breakage of the armor layers; thermo wire arrangement is carried out through a mode of jointly using positive poles so that the number of the temperature measurement points can be further increased on the armor layers of the same caliber, and the structure and wiring of the thermocouple is simpler.
Owner:宁波富德能源有限公司
A lane line detection method in a complex driving scene
ActiveCN109886176ARecognition stabilityOvercome breakageCharacter and pattern recognitionMultiple frameRoad surface
The invention discloses a lane line identification method in a complex driving scene. According to the method, the continuous multi-frame driving scene images are used for lane line detection; a modeof combining a deep convolutional neural network and a recurrent neural network is adopted to construct an end-to-end deep learning model, the lane line detection is carried out on an inputted continuous driving scene image, and a road line probability graph is outputted, so that the problem of high-precision lane line recognition under the complex conditions of road surface shadow, lane line abrasion, vehicle body shielding and the like is effectively solved.
Owner:WUHAN UNIV
Partial discharge detection system
PendingCN109709461AAvoid interferenceAccurate detectionTesting dielectric strengthFiber couplerSensor array
The invention relates to a partial discharge detection system which comprises a light source assembly, an optical fiber amplifier, a circulator, a fiber grating sensor array, a fiber coupler, an interferometer and a signal demodulating device. The partial discharge detection system can effectively avoid the interference of a complex electromagnetic environment to partial discharge signal detectionby adopting the passive components such as the fiber grating sensor array, the fiber coupler and the interferometer, so as to accurately detect the partial discharge condition of a cable joint. The fiber grating sensor array can simultaneously carry out partial discharge detection on each single core cable in a multi-core cable. A reflected pulse signal is modulated by the interferometer and interferes in the fiber coupler. An original signal carrying partial discharge information can be demodulated by the signal demodulating device. The sensitivity of the system is effectively improved. Thepartial discharge detection system can accurately detect the partial discharge of all cable joints in the complex electromagnetic environment.
Owner:SHENZHEN POWER SUPPLY BUREAU
Press line automatic tapping process and processing system thereof
InactiveCN102632368AAvoid negligenceOvercoming less attackThread cutting feeding devicesMetal-working feeding devicesWork periodProcess engineering
The invention discloses a press line automatic tapping process and a processing system thereof. The press line automatic tapping process comprises the technical steps of press forming, tapping and separating blanking. During the technical steps, materials are conveyed by a conveying device, so that the automatic continuous processing of the materials is realized, the traditional manual operation is replaced, the working time and cost are saved, the production efficiency is greatly improved, human-caused omission of processing is effectively eliminated, the yield of products is enhanced and the product quality is effectively ensured.
Owner:KUNSHAN JIASHENG PRECISION ELECTRONICS IND
Heat treatment technology of 2024 aluminum alloy thin plates
InactiveCN104593703AOvercoming tensile propertiesOvercome the situationFurnace typesHeat treatment furnacesProduction schedule2024 aluminium alloy
The invention discloses a heat treatment technology of 2024 aluminum alloy thin plates. Technological parameters of heat treatment are changed to obtain the following optimal technological parameters: solid solution is carried out at 498DEG C for 20min, and ageing is carried out at 185DEG C for 10h. The technology solves a problem that the production schedule of a company is influenced by no warehousing of raw materials or part discarding due to unqualified tensile property and unqualified intercrystalline corrosion of 6061 aluminum alloys prepared in the prior art. The optimized heat treatment technology obviously improves the mechanical properties, the corrosion resistance and the fatigue resistance of the 2024 aluminum alloy thin plates.
Owner:青岛齐力铸钢有限公司
Shaking table ore zoning image segmentation method based on krill optimization algorithm
ActiveCN105844628AImprove real-time performanceOvercome the situationImage enhancementData processing applicationsGray level imageImage segmentation
Owner:KUNMING UNIV OF SCI & TECH
Test chamber capable of simulating mechanical properties of test pieces in high-temperature states and system with test chamber
ActiveCN105784462AImprove detection efficiencyOvercome temperatureMaterial strength using tensile/compressive forcesTest chamberEngineering
The invention discloses a test chamber capable of simulating mechanical properties of test pieces in high-temperature states and a system with the test chamber. The test chamber comprises a chamber body and more than one heating device. The heating devices are arranged in the chamber body and can be repositioned in the chamber body. The system comprises the test chamber and a load loading device. According to the scheme, the test chamber and the system have the advantages that heated environments which are in close proximity to high-temperature environments bearable for the test pieces in service states can be simulated for the test pieces, accordingly, the test chamber and the system are high in detection efficiency and wide in application range, accurate detection results can be obtained, and test states of the test pieces in fire hazard states can be particularly simulated by the aid of the test chamber and the system.
Owner:SICHUAN UNIV
Lovastatin and niacin sustained-release preparation and preparation method thereof
InactiveCN101474163AReduce fluctuationEliminate side effectsOrganic active ingredientsMetabolism disorderSustained Release TabletSide effect
The invention relates to a lovastatin and niacin sustained-release preparation. Each tablet contains 500mg niacin and 20mg lovastatin according to weight proportion; matrix tablets preparation technology is adopted to prepare the niacin as a sustained-release share and the lovastatin as a quick-release share; and the two shares are compressed to be a compound sustained release tablet. The compound preparation is mainly used for treating hypercholesterolemia, and the HDL is increased by 41%, the LDL is decreased by 45%, and the triglyceride is decreased by 42% after one year treatment. The development of the sustained release tablet can effectively control the release of medicament so that the medicament release rate can reach a preset value, the blood concentration is smoother and the fluctuation phenomenon lead by common preparation is decreased. The invention ensures that not only the toxic side effect caused by the common preparation is reduced, and the deficient of frequent medicine taking is overcame but also the situations of missing or forgetting are avoided and the use is convenient for a patient. When the two are jointly used, synergic action is obtained. The invention has simple preparation process and is suitable for industrial production.
Owner:QINGDAO HUANGHAI PHARM CO LTD
Li-SOCl2 cell anode powder mixing method
The invention discloses a Li-SOCl2 cell anode powder mixing method. The method comprises the following steps of adding acetylene black with the weight to a powder mixing machine for stirring at the room temperature of 25+ / - 5 DEG C and the humidity of 50%+ / -20%; The method comprises: adding acetylene black with the weight to a powder mixing machine for stirring at the room temperature of 25+ / - 5 DEG C and the humidity of 50%+ / -20%; mixing a polytetrafluoroethylene emulsion with the weight, isopropanol and deionized water to obtain a mixed liquid, adding half-weight mixed liquid to the powder mixing machine, stirring and mixing to obtain a mixed powder; after stirring for 15 minutes, discharging the mixed powder whose total amount is about 20% from an outlet portion at the bottom of the powder mixing machine; uniformly adding a metal powder with the weight to the powder mixing machine from the inlet portion of the powder mixing machine, then adding the mixed powder in the step 3 from the inlet portion of the powder mixing machine, and finally adding the remaining half-weight mixed liquid; and mixing again, and stirring for 15 minutes to complete an entire powder mixing process. Material mixing is uniform, and discharge platform and capacity uniformity is good.
Owner:武汉昊诚锂电科技股份有限公司
Hub frame hub tyre
InactiveCN101585299AAvoid driving safety hazardsReduce the degree of overturningTyre partsManufacturing technologyEngineering
A hub frame hub tyre manufacturing process for vehicles adds the inventive hub frame 1 on the hub based on the existing vacuum tyre manufacturing processes. When tyre burst happens, the vehicle bump can be effectively reduced by the elastic support from the hub frame 1 to avoid or reduce the accident that causes damage or death. When tyre puncture happens and repair and replacement can not be timely, then vehicle can keep on running without expanding damage to the hub and tyre by the elastic support from the hub frame 1. Most important, the inventive hub frame hub can be applied to all the existing vacuum tyre structures without influences on technology. Moreover, with the tyre assembly and disassembly, the hub frame hub tyre has the same application range, charge and assembly on the vehicle with the original vacuum tyres.
Owner:乔向东
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