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Integrated fertilization method under condition of NPKS of double-cropping crops of wheat and corn
ActiveCN101699961AHigh organic contentFixes and preserves nitrogen nutrientsHorticultureSoil-working methodsCorn stoverNitrogen fertilizer
The invention relates to an integrated fertilization method under the condition of NPKS of double-cropping crops of wheat and corn, comprising the NPKS of wheat to sow corn and the NPKS of corn to sow wheat. In the invention, under the conditions of NPKS of medium and high yield level of wheat and corn which can be harvested twice a year, the fertilization amount per mu is as follows: 25-32kg of N, 13-18kg of P2O5 and 13-18kg of K2O, the higher of the yield of the two crops, the greater of the application proportion of the nitrogen fertilizer therein on the wheat, while the allocation proportion of phosphorus and potassium is slightly different. The integrated fertilization method under the condition of NPKS can not only give consideration to complete and strong seedlings and high and stable yield of the two-cropping rotation crops of wheat and corn, but can also give full play to the positive influence of NPKS to increase soil organic matter and improve soil fertility, eliminating the negative influence, and can further reduce waste and environmental pollution caused by unreasonable input and allocation of chemical fertilizer.
Owner:INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
Closed cooling system of gas cooled polysilicon ingot furnace
ActiveCN102234837APrecise temperature controlEasy to controlPolycrystalline material growthSingle crystal growth detailsNuclear engineeringCrucible
The invention relates to the manufacture technical field of polysilicon ingot furnaces, and aims to provide a closed cooling system of a gas cooled polysilicon ingot furnace. The system comprises a heat exchange platform positioned on a supporting column and used for placing a crucible, wherein a cooling gas channel is arranged in the heat exchange platform; a gas inlet and a gas outlet at two ends of the cooling gas channel are respectively connected with a cooling gas inlet pipeline and a cooling gas outlet pipeline; and the heat exchange platform, the cooling gas inlet pipeline, the cooling gas outlet pipeline, a cooling gas power pump group and a cooler form a closed circulation loop of the cooling gas. Compared with the cooling method of radiation cooling and water cooling, the system related by the invention has strong gas cooling control capacity and high industrial controllability; the gas is fed into the heat exchange platform evenly, so that the whole temperature of the heatexchange platform is even, which is in favor of even nucleation of a silicon melt at the bottom of the crucible; and the reducing speed of the temperature at the bottom of the crucible can be precisely controlled during the crystal growth.
Owner:ZHEJIANG JINGSHENG MECHANICAL & ELECTRICAL +1
Device for automatically identifying and tracking multi-layer and multi-pass welding beads
InactiveCN104002021AImplement trackingWith hysteresisArc welding apparatusAttitude controlControl system
The invention discloses a device for automatically identifying and tracking multi-layer and multi-pass welding beads, which belongs to the technical field of welding, and aims at solving the problem that multi-layer and multi-pass welding beads are difficult to identify by the single-stripe structure light in the existing welding method. The device comprises a laser device, a diffraction optical component, an image acquisition system, a control system, a drive system and a welding gun, wherein the laser device emits a cylindrical light into the diffraction optical component; a grid structure light is formed by the light transmitting through the diffraction optical component; the grid structure light enters a welding bead in front of a welding area; the image acquisition system is used for acquiring the grid structure light and welding joint images on the multi-layer and multi-pass welding beads; the acquired data output end of the image acquisition system is connected with the acquired data input end of the control system; the welding gun position and attitude control signal output end of the control system is connected with the welding gun position and attitude control signal input end of the drive system; the welding gun position and attitude control signal output end of the drive system is connected with the welding gun position and attitude control signal input end. The device is used for automatically identifying and tracking the multi-layer and multi-pass welding beads.
Owner:HARBIN INST OF TECH
Successive approximation type a/d converter circuit
InactiveCN102204107AWith hysteresisSuppresses Conversion Error IncreaseElectric signal transmission systemsMultiple input and output pulse circuitsHysteresisCapacitance
In an A / D converter circuit having a chopper comparator, only a small number of elements are additionally provided to impart a hysteresis characteristic to the comparator, thereby reducing the conversion errors caused by noise. In a successive approximation type A / D converter circuit having a chopper comparator, one or more amplifier stages are provided to the comparator circuit (CMP), and a feedback capacitor (Cf), which is connected to the input terminal of one of the amplifier stages, is also provided to the comparator circuit (CMP). In the A / D converter circuit, during a first interval, an input analog voltage is taken in, and during a second interval, a voltage, which is in accordance with a potential difference between the input analog voltage and the comparison voltage, is inputted and the input potential is amplified by the amplifier stages. When the output of the comparator circuit changes, a positive feedback is applied through the feedback capacitor to the input terminal of the corresponding amplifier stage, thereby providing a hysteresis of 1 LSB or less.
Owner:MITSUMI ELECTRIC CO LTD
Clopidogrel and salt submicron emulsion injection thereof as well as preparation method of same
InactiveCN102697724AFast onset timeMedication convenienceOrganic active ingredientsEmulsion deliveryDrugEmulsion
The invention belongs to the technical field of medicine and relates to clopidogrel and salt submicron emulsion injection thereof as well as a preparation method of the clopidogrel and the salt submicron emulsion injection thereof. Particularly, the invention provides clopidogrel, salt submicron emulsion injection including clopidogrel, salt, oil for injection, assistant emulsifier, isoosmotic adjusting agents, pH adjusting agents and water for injection, and a preparation method of the clopidogrel and the salt submicron emulsion injection. 100 mL of the injection comprises clopidogrel, 0.05 g to 0.15 g salt (measured according to clopidogrel), 5 g to 30 g of oil for injection, 0.5 g to 3.4 g of emulsifier, 0 g to 1 g of assistant emulsifier, 2.0 g to 4.0 g of isoosmotic adjusting agents, and 7.0 g to 9.0 g of pH adjusting agents, and 100 mL of water for injection is added. The clopidogrel and the salt submicron emulsion injection thereof, provided by the invention, have the physical chemical property conforming to the requirement of drug for intravenous use and are suitable for clinical application.
Owner:SHENYANG PHARMA UNIVERSITY
Method of thermo press preparing high purity aluminium titanium carbide block material
The present invention relates to a method for preparing high-purity aluminium titanium carbide block material by utilizing hot-pressing process. Said method includes the following steps: using Ti powder, Al powder and TiC powder as raw material, using proper quantity of Sn as reaction adjuvant, mixing materials according to the mole ratio of Ti:Al:TiC:Sn=1:(0.9-1):1:(0-0.2), placing the mixed material and agate ball into a ball-grinding tank according to the ball material ratio of 2:1, dry mixing them for 5-10 h in ball-grinding machine, placing the uniformly-mixed material into a graphite mould, placing said graphite mould into a hot-pressing furnace, heating to 1350-1550 deg.C under the protection of argon atmosphere, at the same time applying pressure of 10-30 MPa then heat-insulating for 30-60 min so as to obtain the invented high-purity large-size Ti3AlC2 block material.
Owner:BEIJING JIAOTONG UNIV
Switching power supply circuit with precise voltage abnormality protection and method
PendingCN110364994AWith anti-jitter time masking functionWith hysteresisEmergency protective circuit arrangementsEfficient power electronics conversionHysteresisOvervoltage
The invention provides a switching power supply circuit with precise voltage abnormality protection and method. The switching power supply circuit comprises a rectifier circuit with AC inputted, a driving circuit connected with the output end of the rectifier circuit and an output filter circuit connected to the output end of the driving circuit. The switching power supply circuit and the method have the beneficial effects that input voltage undervoltage detection, input voltage overvoltage detection, and output overvoltage detection have cycle-by-cycle detection capability according to the operating frequency of the switching power supply system; an anti-jitter time shielding function is achieved; when instantaneous voltage exceeds a set range due to interference or jitter, the power supply can shield instant abnormal voltage detection signals through delay judgment, the control circuit does not perform a protection action; and when the detected abnormal signals exist for a certain period of time, the control circuit performs the protection action, and when the switching power supply is started or closed for protection and restarted, input voltage undervoltage point detection andinput voltage overvoltage point detection have a hysteresis function.
Owner:无锡博通微电子技术有限公司
Walking power generation shoes for generating power through flowing liquid
InactiveCN104161340AWith the function of warm in winter and cool in summerLarge specific heat capacityMachines/enginesEngine componentsImpellerEngineering
The invention discloses a pair of walking power generation shoes for generating power through flowing liquid. Each shoe comprises a shoe sole and a vamp. A first liquid bag is arranged on the portion, corresponding to one foot sole, in each shoe sole, a second liquid bag is arranged on the portion, corresponding to one heel, in each shoe sole, and each first liquid bag and each second liquid bag are filled with liquid; impellers are arranged between each first liquid bag and the corresponding second liquid bag and connected with a micro-generator, and the two sides of the impellers are provided with one-way passageways respectively for connecting the corresponding first liquid bag with the corresponding second liquid bag. Liquid flows through the one-way passageways to drive the corresponding impellers to rotate to drive the corresponding micro-generator to generate power. The shoes generate power through energy under the feet generated when people walk, and small electronic products can be charged at any time and in any place, so that long runtime of the electronic products such as mobile phones can be kept when people go out; meanwhile, due to the fact that the liquid bags at the bottoms of the shoes are filled with water or other liquid, the specific heat ratio is larger than that of air, the air temperature change lags, and therefore the shoes have the functions of being warm in winter and cool in summer.
Owner:郑振妍
Indoor anti-condensation risk design control method and integral control method
ActiveCN109595768AReduce the risk of condensationCost priorityMechanical apparatusDesign controlEngineering
The invention discloses an indoor anti-condensation risk design control method and an integral control method. The design control method comprises the steps of determining a condensation influence factor of a fresh air system according to the condensation risk and the influence weight of the fresh air system; determining a condensation influence factor of a dry draught fan coil according to the condensation risk and the influence weight of the dry draught fan coil; determining a condensation influence factor of a metal radiant panel according to the condensation risk and the influence weight of the metal radiant panel; and summing up the condensation influence factor of the fresh air system, the condensation influence factor of the dry draught fan coil and the condensation influence factorof the metal radiant panel to form a room condensation influence factor. Through the method, the indoor condensation risk can be controlled and regulated at the design stage, and meanwhile, the specific running conditions can be further monitored at the running stage.
Owner:SHANGHAI LANDLEAF BUILDING TECH CO LTD
Fabricated bentonite interior partition wall board and combination wall
The invention discloses a fabricated bentonite interior partition wall board and a combination wall, and relates to the technical field of building fabricated walls. The fabricated bentonite interiorpartition wall board comprises pre-pressure devices, sliding chutes and bentonite interior partition wall blocks, wherein the pre-pressure devices are arranged at the upper ends of the bentonite interior partition wall blocks; the sliding chutes are formed in the lower ends of the bentonite interior partition wall blocks; the bentonite interior partition wall blocks comprise side plates and intermediate plates; the side plates are boards connected with main structures; one sides of the side plates are connected with the main structure through U-shaped clamps in the middle parts in a pulling way; the other sides of the side plates are connected with the intermediate plates through mortise and tenon joint; the intermediate plates are arranged in the middles of the side plates; and the multiple bentonite interior partition wall blocks are connected and arranged in multiple columns so as to form the fabricated bentonite interior partition combination wall. The combination wall realizes connection and the integration of a board body, a veneer is not only light, but also good in force performance, and meanwhile, an energy consumption function is realized. The combination wall is reasonable and reliable in connection and good in integrality, and is the innovative interior partition wall board.
Owner:BEIJING TIANJI NEW MATERIALS
Atmospheric synthetic method for high purity titamum aluminum carbide ceramic powder
The present invention discloses atmospheric synthesis process of high purity titanium aluminum carbide (Ti3AlC2) ceramic powder. High purity Ti3AlC2 ceramic powder is prepared through mixing Ti powder, Al powder, TiC powder and Sn as reaction assistant in the molar ratio of 1 to 1 to 1 to (0.1-0.2) for 5-10 hr; pressing at 10-50 MPa into block; and sintering in a high temperature furnace under protection of argon in the temperature raising rate of 15-50 deg.c / min and through maintaining at 1350-1550 deg.c for 5-15 min. The present invention has the advantages of simple apparatus, stable technological parameters, short Ti3AlC2 powder preparing period, high product purity and low cost, and is suitable for industrial production.
Owner:BEIJING JIAOTONG UNIV
Magnetic hetero nano fiber self assembling super crystal lattice structure material and its preparing method
InactiveCN1554567ASuperparamagneticWith hysteresisSemi-permeable membranesNanostructure manufactureFiberHigh density
The superlattice structure material has micron lever ordered superlattice structure formed with magnetic hetero nano fiber and through self-assembling and has regular geometric shape, such as rectangular pyramid, etc. The preparation process includes setting magnetic hetero nano fiber solution of certain concentration in strong magnetic field at certain temperature for certain time to self assemble and spread into film, and drying to obtain superlattice structure. The hetero material has important application is display technology, high density memory and other aspects.
Owner:NANKAI UNIV
Processing method of randia cochinchinensis, hedychium chrysoleucum and tea nutrition powder
InactiveCN107467567AWide variety of sourcesRich in nutrientsFood ingredient functionsSodium ascorbateAdditive ingredient
The invention provides a processing method of randia cochinchinensis, hedychium chrysoleucum and tea nutrition powder. The randia cochinchinensis, hedychium chrysoleucum and tea nutrition powder is prepared from the following raw materials in parts by weight: 30-35 parts of randia cochinchinensis juice, 25-30 parts of randia cochinchinensis pulp, 20-25 parts of hedychium chrysoleucum pulp, 10-15 parts of tea powder filter residue, 2-3 parts of citric acid, 0.4-0.6 part of sodium ascorbate, 0.3-0.4 part of gelatin and 0.3-0.4 part of sodium alginate, and the preparation is 100 parts by weight. The processing method comprises the steps: pretreatment and preparation of the randia cochinchinensis, preparation of a tea powder extracting solution, treatment of the hedychium chrysoleucum, homogenization, sublimation drying, pulverization and the like. The method provided by the invention adopts the randia cochinchinensis, the tea and the hedychium chrysoleucum as the main raw materials, and adopts the tea powder extracting solution for pulping the hedychium chrysoleucum, so escape of the nutrient components of the hedychium chrysoleucum is avoided, the nutrient substances in the nutrition powder is more balanced, and the nutrition powder has the health care effects of removing summer-heat, relieving dyspepsia, warming the middle-jiao, strengthening the stomach and the like.
Owner:李春生
Method and device for calculating energy efficiency of equipment, readable medium and electronic device
ActiveCN109886531AWith hysteresisSolve energy consumptionResourcesCorrelation coefficientElectric equipment
The invention discloses a method and device for calculating the energy efficiency of equipment, a readable medium and an electronic device. The method comprises the steps of forming a first time sequence and a second time sequence of the equipment; dividing the first time sequence into at least two first sub-sequences; determining at least two delay factor groups; aiming at each delay factor group, carrying out delay processing on each first sub-sequence by utilizing each delay factor in the delay factor group to obtain a delay time sequence, and calculating a correlation coefficient of the delay time sequence and the second time sequence; and determining a maximum value in each correlation coefficient, and calculating the energy efficiency of the equipment according to the delay time sequence corresponding to the maximum value and the second time sequence. According to the technical scheme provided by the invention, the problem that the energy consumption and the capacity of the equipment at the same moment are not corresponding is solved, and the energy efficiency of the equipment can be more accurately calculated.
Owner:XINAO SHUNENG TECH CO LTD
Direct-current (DC) solid-state relay
InactiveCN102064811AWith hysteresisMovement precisionElectronic switchingElectrical resistance and conductanceHysteresis
The invention discloses a direct-current (DC) solid-state relay, and belongs to the relay field. The relay is composed of an input circuit, an isolating circuit and an output circuit which are sequentially connected together, wherein, the input circuit and the output circuit are respectively composed of a resistor, a switching tube and a diode, and a photoelectric coupler is adopted in the isolating circuit. The DC solid-state relay has the advantages that a positive feedback circuit is introduced into the input circuit so that the break-over voltage value and the cut-off voltage value of the relay are separated from each other and a certain margin is reserved; the relay has hysteresis characteristic, thus avoiding a critical jitter phenomenon; relay output is not affected by load, and ports are relatively independent; and the relay can accurately work in the case of an operation critical value, thus improving the operating stability.
Owner:HOHAI UNIV
Blast furnace smooth running index calculation method based on moving range
ActiveCN111523255AReliable dataAvoid suspensionDesign optimisation/simulationResourcesChemistryBlast furnace smelting
The invention relates to the field of blast furnace smelting, and discloses a blast furnace smooth running index calculation method based on a moving range, which is used for more accurately calculating a blast furnace smooth running index so as to improve the stability of blast furnace condition operation. The method comprises the following steps: firstly, during blast furnace production, acquiring blast furnace state parameters in the latest period of time in real time, including the blanking speed of a blast furnace, the air pressure of the blast furnace, the top pressure of the blast furnace and the coal gas percentage in the blast furnace; then assigning values to various blast furnace state parameters respectively, the wind pressure, the top pressure and the coal gas percentage in the blast furnace being assigned based on respective moving ranges, the moving ranges being fluctuation values of the blast furnace state parameters in the latest period of time; and finally, obtainingthe blast furnace smooth index through assignment summation of all the blast furnace state parameters. The method is suitable for blast furnaces of iron works.
Owner:PANGANG GRP PANZHIHUA STEEL & VANADIUM
Network quality monitoring method and device, electronic equipment and storage medium
ActiveCN111404773AReduce business impactWith hysteresisData switching networksQuality dataEngineering
The invention discloses a network quality monitoring method and device, electronic equipment and a computer readable storage medium. The method comprises the steps of obtaining a network quality prediction table of a current line, wherein the network quality prediction table representing corresponding relationship between the network bandwidth and the quality data obtained based on the historicaldata of the current line; obtaining a current network bandwidth, and determining predicted quality data corresponding to the current network bandwidth based on the network quality prediction table; and if the prediction quality data satisfies a preset condition, carrying out line switching. According to the network quality monitoring method provided by the invention, line quality model predictionis carried out depending on historical data to obtain the network quality prediction table of the current line, and the network quality prediction table can identify possible degradation of the network quality in advance and make a response in advance, so that influence on the service is relatively small.
Owner:SANGFOR TECH INC
Remote signaling acquisition implementation method of relay protection device with adjustable starting value
InactiveCN111007298AWith hysteresisImprove anti-interference abilityVoltage/current isolationMeasurement using digital techniquesConvertersA d converter
The invention relates to a remote signaling acquisition implementation method of a relay protection device with an adjustable starting value. An analog-to-digital converter is added between secondaryoutput and CPU input of a photoelectric coupler; the analog-to-digital converter converts the secondary output voltage of the photoelectric coupler into digital quantity and inputs the digital quantity to the CPU; the CPU compares the acquired voltage value with a positive threshold value and a negative threshold value, and judges whether remote signaling deflection occurs or not; when the currentremote signaling output state is 0, the voltage is detected to rise and is higher than the positive threshold value, and the remote signaling output is set to be 1; and when the current remote signaling output state is 1, the voltage is detected to be reduced and is lower than a negative threshold, the output state is set to be 0. The output of the analog-to-digital converter is collected by theCPU, and remote signaling deflection judgment is carried out; the output has hysteretic characteristics relative to the input, and the anti-interference performance is improved; two sets of positive thresholds and negative thresholds with rated values of 110V and 220V can be set, and can be selected for use according to actual field requirements, so that the compatibility of 110V and 220V is realized.
Owner:INTEGRATED ELECTRONICS SYST LAB
Hygiene-grade corrosion-resistant temperature sensor
InactiveCN106441606AWith hysteresisFunctionalThermometer detailsThermometer with A/D convertersHygieneHot Temperature
The invention provides a hygiene-grade corrosion-resistant temperature sensor. The hygiene-grade corrosion-resistant temperature sensor comprises an upper cover, a shell, a probe, a circuit part and a plastic part used for fixing the circuit part, wherein the upper cover and the probe are in sealing connection with the upper end and the lower end of the shell respectively; interiors of the upper cover, the probe and the shell form a cavity for accommodating the circuit part and the plastic part; the probe comprises a digital integrated chip, a probe main body and an adapter; the external surface of the adapter is a smooth surface; two clamping grooves are formed in the top end of the probe main body; a sealing ring and a sealing pad are successively arranged in each of the upper clamping groove and the lower clamping groove, so that waterproof, dustproof and sealing effects can be achieved; two symmetric wrench clamping grooves are formed in two sides of the probe main body. The corrosion-resistant all-metal temperature sensor also has various output manners and protection functions, is capable of measuring liquid and gas, is applied to the high-temperature and high-corrosion environment, and can be applied to the field of the hygiene industry.
Owner:EMA PRECISION ELECTRONICS SUZHOU
A Flexible Compensation Mechanism for Marine Seawater Pipeline
ActiveCN108916517BWith hysteresisReduce stress levelsPipeline expansion-compensationNoise levelFishery
Owner:NO 719 RES INST CHINA SHIPBUILDING IND
Image signal process device
InactiveCN1484435AWith hysteresisAvoid frequent switchingTelevision system detailsColor television detailsRC time constantComparators circuits
An AGC circuit (70) amplifies a video signal according to again value output from again setting circuit (56). A clamp circuit (72) performs clamping of the direct current level of an output signal from the AGC circuit (70) at a clamp ability level according to a time constant set by a clamp time constant setting circuit (58). The clamp time constant setting circuit (58) receives input of the gain value generated by the gain setting circuit (56). A comparator circuit (120) compares the received gain value to a reference value, and, when the gain value exceeds the reference value, outputs a relatively large time constant. The clamp ability level of the clamp circuit (72) is controlled according to this time constant. In this manner, when the gain value is large, gradual clamping can be executed so as to minimize the influence of noise components superimposed on the direct current level, thereby suppressing transverse noise.
Owner:SANYO ELECTRIC CO LTD
Multi-stage optimization configuration method for product value chain in uncertain environment
PendingCN114154674AHigh precisionReduce computational complexityForecastingResourcesRound complexityNetwork model
The invention discloses a multi-stage optimal configuration method for a product value chain in an uncertain environment. Constructing a multi-cycle and multi-product product value chain network model containing 10 nodes; the product value chain network model is composed of nodes and edges, the edges represent discrete events, the discrete events refer to trigger behaviors from one node to another node, and the given probability of occurrence of each discrete event is set as an uncertainty parameter; according to the product value chain network model, an objective function and constraint conditions based on multi-stage random mixed integer linear programming are established, and then optimal configuration of the product value chain is obtained through optimization. According to the method, the design and planning problems of the product value chain under the environment that the number of raw materials and the use position demand level are uncertain are solved, the calculation complexity is lower, and it can be guaranteed that the optimization result has good accuracy.
Owner:ZHEJIANG UNIV
Direct-current (DC) solid-state relay
InactiveCN102064811BWith hysteresisMovement precisionElectronic switchingElectrical resistance and conductanceHysteresis
The invention discloses a direct-current (DC) solid-state relay, and belongs to the relay field. The relay is composed of an input circuit, an isolating circuit and an output circuit which are sequentially connected together, wherein, the input circuit and the output circuit are respectively composed of a resistor, a switching tube and a diode, and a photoelectric coupler is adopted in the isolating circuit. The DC solid-state relay has the advantages that a positive feedback circuit is introduced into the input circuit so that the break-over voltage value and the cut-off voltage value of therelay are separated from each other and a certain margin is reserved; the relay has hysteresis characteristic, thus avoiding a critical jitter phenomenon; relay output is not affected by load, and ports are relatively independent; and the relay can accurately work in the case of an operation critical value, thus improving the operating stability.
Owner:HOHAI UNIV
Control apparatus of motor central lock with CAN interface
InactiveCN1963874BAvoid dangerWith hysteresisLocking wings simultaneouslyAnti-theft devicesComputer hardwareAutomatic control
This invention relates to one car control lock device with CAN interface, which comprises power circuit to realize CAN communication drive interface circuit to realize information sending, receiving and processing and controlled single machine circuit; the drive central control gate lock motor drive circuit; position test circuit to test central gate lock position status; over current test circuit to test drive motor current and interface circuit; the communication agreement sets middle control lock device joint address, communication rate, message frame number and parameters and usage method.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Expert recommendation method combining label construction and community relation avoidance
ActiveCN111008215AIncrease influenceInfluence recommendation high level highSpecial data processing applicationsText database clustering/classificationCommunity settingEngineering
The invention discloses an expert recommendation method combining label construction and community relation avoidance. The method comprises the steps of acquiring a patent database and a paper database in the field of science and technology, and extracting authors in the paper database and inventors in the patent database to form an expert list; and then complementing the attribute information ofthe experts , completing expert attribute extraction and domain label extraction according to the attribute information; forming an expert library of the science and technology domain is according tothe relationship between the experts; filtering an expert set S1 with high matching degree according to the domain labels of the experts to obtain an expert set S2 needing to be avoided; obtaining preliminarily recommended experts, namely S = S1-S2; and sorting the experts according to the influence of related domains to obtain a final expert recommendation list. According to the method, expert avoidance is reasonably carried out, and high-level, high-influence and high-responsibility experts are recommended according to domain labels and influence of the experts; the working efficiency of expert selection is effectively improved; and meanwhile, the scientificity, fairness, independence and objectivity of scientific and technological evaluation or review are improved.
Owner:中科大数据研究院
Calculation method of antegrade index of blast furnace based on moving range
ActiveCN111523255BIn line with actual experienceReliable dataDesign optimisation/simulationResourcesThermodynamicsBlast furnace smelting
Owner:PANGANG GRP PANZHIHUA STEEL & VANADIUM
Heat exchange platform of improved structure for polycrystalline silicon ingot furnace
ActiveCN102268728BPrecise temperature controlStrong refrigeration control abilityPolycrystalline material growthFrom frozen solutionsCrucibleIngot
Owner:SHANGYU JINGXIN ELECTROMECHANICAL TECH +1
Concrete rebound instrument based on annular spring
ActiveCN109211702AWith hysteresisReduce axial sizeInvestigating material hardnessLinear motionEnergy storage
The invention discloses a concrete rebound instrument based on an annular spring. The instrument comprises a fillip bar, a housing, a connecting rod, a pointer and an annular spring with a notch. Oneend of the connecting rod is hinged to the notch side of the annular spring notch, and the other end of the connecting rod is hinged to one end of the fillip bar. The fillip bar is arranged in a normal constraint device. The connecting rod, the pointer and the annular spring with the notch are arranged in the housing. An opening for allowing the fillip bar to move is arranged on the housing. A limiting constraint device which limits the contraction position of the annular spring is arranged on the housing. The pointer points from the center of the annular spring to the hinge portion of the annular spring and the connecting rod. The dial corresponding to the pointer is arranged at a point above a hollow window of the housing. An annular spring is adopted as an energy storage component, curvilinear and linear motions are mutually converted, so that the axial dimension of the instrument can be greatly reduced.
Owner:WUHAN UNIV
Method of thermo press preparing high purity aluminium titanium carbide block material
The present invention relates to a method for preparing high-purity aluminium titanium carbide block material by utilizing hot-pressing process. Said method includes the following steps: using Ti powder, Al powder and TiC powder as raw material, using proper quantity of Sn as reaction adjuvant, mixing materials according to the mole ratio of Ti:Al:TiC:Sn=1:(0.9-1):1:(0-0.2), placing the mixed material and agate ball into a ball-grinding tank according to the ball material ratio of 2:1, dry mixing them for 5-10 h in ball-grinding machine, placing the uniformly-mixed material into a graphite mould, placing said graphite mould into a hot-pressing furnace, heating to 1350-1550 deg.C under the protection of argon atmosphere, at the same time applying pressure of 10-30 MPa then heat-insulating for 30-60 min so as to obtain the invented high-purity large-size Ti3AlC2 block material.
Owner:BEIJING JIAOTONG UNIV
A photomagnetic functional material of metal fullerene and its preparation and application
ActiveCN111171817BStructure determinationEasy to operateFullerenesLuminescent compositionsPhotoluminescenceParticle physics
The invention provides a photomagnetic functional material of metallofullerene and its preparation method and application. The photomagnetic functional material of metallofullerene is in molecular form, with a size of about 1nm, a definite structure, easy manipulation, and performance It has single-molecule magnet performance and photoluminescence properties, and it has hysteresis phenomenon below 5K, and the metallofullerene containing Er has a luminescence wavelength in the range of 1400-1600nm, and the metallofullerene containing Y has a luminescence wavelength in the range of 700-800nm . Not only that, the photoluminescence wavelength or intensity of the optomagnetic functional material of the metal fullerene has modulation properties under the influence of an external magnetic field, that is, there is a coupling effect between magnetism and light, which can be used for quantum information storage or quantum computing. Material.
Owner:INST OF CHEM CHINESE ACAD OF SCI
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