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Memristor-based neuron circuit
ActiveCN106815636AGood effectEasy compositionNeural architecturesPhysical realisationActivation functionNerve network
The invention discloses a memristor-based neuron circuit, comprising a synaptic circuit, a neuron activation function circuit and a synaptic weight control circuit. In the synaptic circuit, a memristor, under the control of four MOS tubes, changes the memristor value to simulate the change of the synaptic weight in the neuron network. The designed neuron synaptic circuit is capable of being directly connected with a digital logic electrical level so as to achieve convenient and real-time adjustment to the synaptic weight and through the use of the feature that the output voltage of an operational amplifier is restricted by the power supply voltage, the neuron circuit activation function can be realized as a saturated linear function. The neuron synaptic weight change circuit can utilize the existing CMOS micro-controller and at the same time, the micro-controller can be loaded by the neuron network algorithm to change the synaptic weight to realize corresponding functions. According to the invention, a plurality of neuron circuits could be connected into a large-scale neuron network for complicated functions such as mode identification, signal processing, associated memory and non-linear mapping, etc.
Owner:HUAZHONG UNIV OF SCI & TECH
Array type multipoint temperature monitoring system
InactiveCN101551277AEasy compositionSimple structureThermometer detailsThermometers using electric/magnetic elementsMicrocontrollerData display
The present invention discloses a array type multi-point temperature monitoring system, including a plurality of monitoring devices, each of which is connected with a temperature sensor measuringline cable of 1000m at longest, each measuringline cable may drive at most 50 of single bus temperature sensors, the temperature sensor is capable of detecting the temperature information of the position where the temperature sensor locating, and the temperature data is transmitted to the monitoring device with a singlechip as a control kernel through a single bus data transmission protocol. The monitoring device has functions of data display, data memory, parameter enactment, overrun alarm, data transmission and the like. The monitoring devices combine a network through RS-485 communication bus, and are connected to a computer host by RS-485 / RS-232 protocol converters, and RS-232 bus to form the array type multi-point temperature monitoring system. The array type multi-point temperature monitoring system is used for situation with a large area multi-point temperature monitoring requirement.
Owner:安徽理工大学高科技中心
Generating and energy storage integrated device based on direct carbon fuel cells (DCFCs) with liquid metal positive electrode
ActiveCN103972526AMeet peak shaving needsGuaranteed power supplyReactant parameters controlCell electrodesElectrical batteryEngineering
The invention belongs to the field of fuel cells, and particularly relates to a generating and energy storage integrated device based on direct carbon fuel cells (DCFCs) with a liquid metal positive electrode. The generating and energy storage integrated device comprises a metal molten pool, the liquid metal positive electrode, the tubular solid oxide direct carbon fuel cells (SO-DCFCs) and a fluidization air distributing feeding system, wherein the tubular SO-DCFCs can be blind pipes and through pipes and can be inserted into the metal molten pool vertically or horizontally; the feeding system carries a fuel and a positive electrode material into the metal molten pool by virtue of carrier gas, and substances in the molten pool are stirred. The generating and energy storage integrated device provided by the invention has the advantages that chemical energy in the fuel and surplus electric energy in an power grid are changed into chemical energy in the liquid metal positive electrode to be stored, and the integration of a generating device and an energy storage device is realized; the integrated device is simple and compact, the reactivity of the carbon fuel and the metal positive electrode is high, the property of the cell is good, the friction of the cell caused by liquid state positive electrode fluidization is small, the service life of the cell is long, the seal is easy, the collection is convenient, and a large-scale electric pile is convenient to form.
Owner:TSINGHUA UNIV
Thermal management method and device for power battery pack with function of automatically controlling non-steady-state temperature field
InactiveCN102403543AAchieve sealingContinuously workingSecondary cells servicing/maintenancePower batteryAutomatic control
The invention relates to a thermal management device for a power battery pack with a function of automatically controlling a non-steady-state temperature field, which comprises a battery pack, a temperature collection unit, a semiconductor cooler / heater, an external circulating fan, an internal circulating fan and a controller. A power battery monomer is arranged in the battery pack; the temperature collection unit is arranged on the pole of the power battery monomer; the semiconductor cooler / heater comprises a cold end plate and a hot end plate, automatic switching can be achieved between the two end plates, the two end plates are arranged on the shell of the battery pack, the cold end plate is arranged inside, the hot end plate is arranged outside, the cold end plate is a cooling plate and the hot end plate is a heat dissipating plate in forward powering-up, and the cold end plate is a heating plate and the hot end plate is a heat absorbing plate in reverse powering-up; the external circulating fan is arranged on the hot end plate of the semiconductor cooler / heater and is used for heat exchange between the hot end plate and external air; the internal circulating fan is arranged on the cold end plate of the semiconductor cooler / heater and is used for air circulation in the battery pack and heat exchange between the cold end plate and air in the batter pack; and the controller is used for controlling the thermal management device. Meanwhile, the invention discloses a method for implementing thermal management of the thermal management device.
Owner:SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
Integrated controller for meter and electrical appliance
InactiveCN1825729AReduce volumeReduce typesProtective switch detailsArrangements responsive to excess currentPower savingContactor
This invention relates to a combined control device for integrated instruments and electric appliances composed of a shell with a faulty display window and labels, an electronic control circuit, an intelligent expanding module circuit, a moving and static contactor component with a current sensor at the side of a static contact bridge, an iron core, a coil and a spring, which realizes multiple kinds of protections and fault display by the electronic control circuit and has the function of power saving, a photo electric isolation technology is applied for its high voltage drive and low voltage signal circuit and the I / O expanding interface and an intelligent expansion module are applied to enrich the function of the display and control of the instrument.
Owner:张 世兴
Rotating disc type automatic ceramic roll forming system
The invention discloses a rotating disc type automatic ceramic roll forming system. The rotating disc type automatic ceramic roll forming system comprises a roll forming machine, wherein a plaster mould is conveyed to the roll forming machine through a green body conveying device and then is conveyed to a drying oven in the next step after the completion of rolling, the green body conveying device is controlled by a rotating disc rotating device and a hydraulic control system, the roll forming machine adopts a double-roller head structure for the simultaneous rolling, and the green body conveying device adopts a rotating disc double-row mould entering and exiting conveying structure which can be used for roll-forming two products simultaneously, so that the production efficiency is doubled compared with a single automatic roll forming machine produced by Japan; and in addition, when different varieties need to be produced, only a mould base needs to be additionally cushioned on eight mould brackets or the mould brackets are replaced, so that the problems of low green compaction efficiency, high labor intensity and low degree of automation of conventional equipment are solved. The rotating disc type automatic ceramic roll forming system does not need very high operation technologies, is convenient to form an automatic production line, and has the advantages of simpleness in operation, safety in use, low labor intensity and high green body quality.
Owner:广东艺博轩陶瓷有限公司
Policy Composition Language
ActiveUS20170031956A1Easy composition and useEasy compositionDigital computer detailsRelational databasesDatabaseSpoken Language Ability
Owner:VMWARE INC
Field programmable gate array (FPGA) device for diagnosing and predicting artificial circuit faults
ActiveCN103197231AIncrease or delete fault characteristic quantitySmooth connectionAnalog circuit testingFrequency spectrumOriginal data
A field programmable gate array (FPGA) device for diagnosing and predicting artificial circuit faults comprises an FPGA board card, wherein the FPGA board card is connected with a computer host machine in Ethernet communication mode, and upper machine software is operated in the computer host machine. The FPGA board card is used for acquisition, cache, preprocessing and back-up of accessible node voltage information and network spectrum characteristic data of an artificial circuit to be tested and packing and transmitting an original signal and artificial circuit fault information to the upper machine software. The upper machine software is used for receiving data frames sent by the FPGA board card, provides interface software for diagnosing and predicting the artificial circuit faults, simultaneously provides a delivery interface of original data and can seamlessly deliver the data to other analysis platforms of the computer host machine to perform follow-up processing, analysis and back-up. The FPGA device for diagnosing and predicting the artificial circuit faults tests and diagnoses some large-scale naval ship artificial circuits and a radio frequency identification device (RFID) filter network, the accuracy rate of fault diagnosis is larger than 95%, and the false rejection rate and the false accept rate are smaller than 3%.
Owner:HUNAN UNIV
Detector for monitoring environmental radiation dose rate
The invention belongs to the field of radiation protection, and provides a detector for measuring the environmental level X ray and gamma ray radiation dose rate. The detector comprises a shell and a high atmospheric pressure ionization chamber. The outer wall of the high atmospheric pressure ionization chamber is of a spherical structure. An end cover through which the ionization chamber is conveniently connected with other parts inside the detector is arranged at the bottom of the outer wall. A spherical inner container which is concentric with the outer wall is arranged inside the ionization chamber. The inner container is connected with the end cover through an insulator. Except welding components of the insulator, the whole ionization chamber is made of aluminum or aluminum alloy. The detector is simple in structure and convenient to use, the problem that the high atmospheric pressure ionization chamber is high in energy lower limit in the environment monitoring process can be effectively solved, the sensitivity of the detector to lower-energy gamma rays is improved, energy response linearity and isotropy of the detector are improved, and credibility of the measuring result is improved.
Owner:NO 719 RES INST CHINA SHIPBUILDING IND
L-shaped sub-array utilization method
The invention provides an L-shaped sub-array utilization method, wherein the L-shaped sub-array is provided with four antenna units. The L-shaped sub-array utilization method comprises the following steps of 1), establishing a square antenna sub-array module; 2) establishing a module equipment database; 3), splicing for forming an objective antenna array; and 4) defining the phase center of a single L-shaped sub-array. Compared with the prior art, the L-shaped sub-array utilization method is advantageous in that the boundary rule of the square antenna sub-array module which is composed of four L-shaped sub-arrays facilitates mounting of various planar arrays and realizes easy engineering realization; combination of ten splicing methods of the square antenna sub-array module and the selection mode for the phase center of the L-shaped sub-array can obtain an array antenna phase center distribution with high randomness, thereby greatly weakening an array antenna radiation pattern grating lobe; and the square antenna sub-array module has a small scale and can be conveniently assembled for forming the planar arrays in different forms, thereby realizing non-single array surface form and wide application range.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Pneumatic powder feeding type molten carbonate direct carbon fuel cell stack
ActiveCN102306822AEnhanced heat and mass transfer processImprove overall performanceFuel cells groupingFused electrolyte fuel cellsDirect carbon fuel cellPhencyclone
The invention relates to a pneumatic powder feeding type molten carbonate direct carbon fuel cell stack which comprises a fuel cell monomer, a cyclone separator, a carbon fuel bin, a carbon fuel loop, a CO2 gas loop and other components; the fuel cell stack is formed by stacking a plurality of fuel cell monomers; solid carbon fuel powder is deposited in the carbon fuel bin; CO2 gas flows through the carbon fuel bin, and flows into an anode gas flow channel by carrying the carbon fuel powder; the carbon fuel powder passes through an anode plate opening, comes into direct contact with a molten electrolyte in an electrolyte diaphragm, and is adhered on the electrolyte diaphragm for the anode reaction of the fuel cell; and unreacted carbon fuel powder and the CO2 gas are separated through thecyclone separator after anode reaction, the carbon fuel powder is recycled, the separated CO2 gas is partially delivered to the carbon fuel bin for carrying the carbon fuel powder and is partially introduced into a cathode gas flow channel for a cathode reaction, and the residual CO2 gas is evacuated directly. According to the invention, the difficulty in continuous feeding of a solid carbon fuelfor the direct carbon fuel cell is eliminated, and the structure of the direct carbon fuel cell stack is compact and reasonable, and is convenient for amplification.
Owner:HUANENG CLEAN ENERGY RES INST
Buried tube type bubbling bed direct carbon fuel cell
ActiveCN1988229ASolving Feed ProblemsEasy to implementFuel cell auxillariesSolid electrolyte fuel cellsSolid carbonWorking temperature
This invention relates to a buried bubble bed direct carbon fuel cell including a bubble bed, tube solid oxide fuel cell monomers, an air distribution board and solid carbon fuel and wind feed device, in which, the monomers are arranged crossly, in sequence or in stagger to be plugged in the buble bed horizontally, the joint places of the monomers and the bed are sealed, the tube solid oxide electrolyte fuel battery is buried in the solid fuel to form a tube-buried structure, the wind feeding device sends gas into the bed via the distributing board to blow up solid carbon fuel particles, and the working temperature of the bed is 700-1000deg.C, the inside tube of the cell is output positive and the outside is output negative and the reacted anode gas is discharged from the top of the bed .
Owner:TSINGHUA UNIV
Eight-unit L-shaped subarray application method and application device based on modularization
InactiveCN105762533AGood fitHigh degree of realizationAntenna arrays manufactureModularityPrinciple of orthogonal design
The invention discloses an eight-unit L-shaped subarray application method and an application device based on modularization. The method comprises the steps: eight eight-unit L-shaped subarrays are selected, and the eight eight-unit L-shaped subarrays can realize 8*8 square modules with different internal splicing structures and same outlines; a plurality of 8*8 square modules are formed; 20 kinds of 8*8 square modules made of the random-distributed L-shaped subarrays are selected from a plurality of 8*8 square modules and serve as a module selectable set; in the module selectable set, a plurality of 8*8 square modules are randomly selected, and the selected modules are spliced into a target antenna array; according to an array antenna far-field pattern superposition principle, a target antenna array pattern assessment array organizing method is calculated, if the performance of the target antenna array pattern is suitable for index requirements, the splicing process is finished, otherwise, another splicing method is reselected until the respliced target antenna array satisfies the index requirements. The invention also discloses the device corresponding to the method.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Solid oxide direct carbon fuel cell stack of tablet bubbling bed
ActiveCN102170009AEnhanced heat and mass transfer processImprove overall performanceFuel cells groupingCell component detailsDirect carbon fuel cellVoltage
The invention relates to a solid oxide direct carbon fuel cell stack of a tablet bubbling bed, which belongs to the technical field of direct carbon fuel cells. The solid oxide direct carbon fuel cell stack provided by the invention comprises components such as a bubbling bed, tablet fuel cell monomers, a grid plate, a solid carbon fuel and the like, wherein the tablet fuel cell monomers are installed on the peripheral wall of the bubbling bed; an anode is inward and a cathode is outward; the tablet fuel cell monomers form a serial structure and a parallel structure through current collectingwires, thereby maintaining the working voltage and current which are needed by the cell stack; the grid plate is installed at the bottom of the bubbling bed; the solid carbon fuel is laid on the gridplate; inlet anode carrier gas is blown into the bubbling bed through the grid plate so as to blow solid carbon fuel particles, thereby enabling the solid carbon fuel particles to be in a bubbling fluidized state; and the cell stack can adopt anode support, electrolyte support or cathode support type tablet fuel cell monomers, and the working temperature of the cell stack is 600-1000 DEG C. The solid oxide direct carbon fuel cell stack provided by the invention has the advantages of compact and reasonable structure, low equipment requirements and easiness in realization, can be used for solving the difficulty of a tablet cell monomer stack and simultaneously realizing the continuous feeding of the solid carbon fuel.
Owner:HUANENG CLEAN ENERGY RES INST
Two-dimensional scanning micromirror of electrostatic drive microelectromechanical system
ActiveCN104297922ASimple structureSimple processOptical elementsInter layerMicroelectromechanical systems
The invention discloses a two-dimensional scanning micromirror of an electrostatic drive microelectromechanical system. The two-dimensional scanning micromirror mainly comprises a low-resistance silicon substrate located on the bottommost layer, fixed comb teeth, comb tooth leads, movable comb teeth, a two-dimensional scanning micromirror set, supporting beam sets and anchor positions, wherein the fixed comb teeth and the comb tooth leads are located on the middle layer, the movable comb teeth, the two-dimensional scanning micromirror set and the supporting beam sets are located on the topmost layer, and the anchor positions are located on both the middle layer and the topmost layer. Four L-shaped supporting beams are introduced in the X-axis direction as the mirror plane rotating shaft in the X-axis direction, so that the leads of the internal fixed comb teeth just pass through the center of the gap between every two adjacent L-shaped supporting beams. Due to the design, the device structure and the machining technology can be simplified, cost is reduced, the leads of the micromirror can be led more conveniently, and thus a large-scale micromirror array can be formed conveniently. The two-dimensional scanning micromirror is of vital significance in expanding the application fields of two-dimensional scanning micromirrors of electrostatic drive microelectromechanical systems.
Owner:桂林光隆科技集团股份有限公司
display device
InactiveCN102265323AResistance (excellent migration resistanceExcellent resistance (migration resistance)TransistorSemiconductor/solid-state device detailsDisplay deviceAlloy
Owner:KOBE STEEL LTD
Special-shaped box processing device with waste recycling function
InactiveCN109177307AEasy compositionPrevent involuntary movement of positionPaper-makingBox making operationsTransmission beltPaperboard
The invention discloses a special-shaped box processing device with a waste recycling function. The special-shaped box processing device comprises a bottom plate, a support frame and motors. The special-shaped box processing device is characterized in that the support frame is designed to be in a T shape, the left and right ends of the support frame are fixedly provided with the motors, motor shaft portions are fixedly connected to transmission wheels, and the two transmission wheels are connected to a transmission belt. The upper surface of the support frame is fixedly provided with a limiting frame, and the limiting frame is provided with a plurality of limiting devices at equal intervals. The processing device is used for cutting special-shaped box paperboards so as to facilitate forming of a special-shaped box, the special-shaped box paperboards are placed on the transmission belt, the transmission belt drives the paperboards to move, the paperboards are in contact with the limiting devices, the paperboards are pressed through rollers, the rollers can prevent the paperboards from moving at will in the process of moving on the transmission belt, the motors a drive conveying rollers to rotate in a power bin, and the conveying rollers on the upper and lower sides drive the paperboards to move into a cutting bin.
Owner:温州市顺福包装有限公司
Soft pack battery module and manufacturing method thereof
PendingCN110289379AEasy compositionHigh strengthCurrent conducting connectionsSecondary cells servicing/maintenanceUltimate tensile strengthEmbedded system
The invention discloses a soft pack battery module and a manufacturing method thereof. The battery module comprises soft pack battery modules, a heat conduction sheet and front and rear bus bar assemblies, wherein the soft pack battery modules are stacked and connected to form a whole soft pack battery module; the front bus bar assembly and the rear bus bar assembly are connected to the front end and the rear end of the whole soft pack battery module; the bus bars on the front bus bar assembly and the rear bus bar assembly are contacted with leads of corresponding soft pack cathode mixes; the bottom surface of the whole soft pack battery module forms a cooling surface; and the cooling surface is contacted with the heat conduction sheet. Thus, the battery modules are assembled to the whole soft pack battery module, series and parallel connection of different requirements can be realized, and the applicability is strong; the bottom of the whole battery module is provided with the heat conduction sheet, thereby achieving good heat conduction performance; and an embedded molding process is adopted between a heat conduction frame and a plastic piece and between the whole soft pack cathode mix module and the bus bar assemblies, thereby improving the strength of the assembly formed by the heat conduction frame and the plastic piece and achieving better product consistency.
Owner:宁波利维能储能系统有限公司
Rapid installation type building fabricated intelligent detection device based on epidemic prevention and control
ActiveCN111289119AReduce dosageQuick assemblyRadiation pyrometryAlarmsMechanical engineeringInfrared temperature measurement
The invention discloses a rapid installation type building fabricated intelligent detection device based on epidemic prevention and control. The device comprises an entering unit and a leaving unit, wherein the entering unit and the leaving unit are installed at the outer end of the disinfection unit on the outermost side respectively, and the entering unit and the leaving unit are fixed to the disinfection unit through clamping of a protruding block and a groove, and the disinfection units are fixed through clamping of a protruding block and a groove. According to the rapid installation typebuilding fabricated intelligent detection device based on epidemic prevention and control, the height of the infrared temperature measurement device can be automatically adjusted according to the height of people passing by, therefore, the infrared temperature measurement device can measure the body temperature of people with different heights; and after the body temperature is measured to be abnormal, the warning unit can be used for warning, so that people with abnormal body temperature can be controlled in time, and meanwhile, the device has the advantage of quick combination and assembly,can directionally spray disinfectant, is beneficial to reducing the dosage of the disinfectant, and can improve the disinfection efficiency.
Owner:国检测试控股集团重庆检测有限公司
Multi-component composite chelating agent for fly ash treatment and preparation method thereof
InactiveCN111617429AImproved uniformity and stabilityGood dispersionChemical protectionEnvironmental chemistryInorganic phosphate
The invention discloses a multi-component composite chelating agent for fly ash treatment. The multi-component composite chelating agent comprises the following components in percentage by mass: 10-60% of organic sulfide, 1-30% of inorganic sulfide, 1-20% of inorganic phosphate and 1-30% of an organic low-molecular-weight dispersing agent, with the balance being water. The invention provides the heavy metal composite chelating agent for waste incineration fly ash. The chelating agent is simple in preparation method; the composition of the agent is simple and easy to obtain; the chelating agentis comprehensive in component, is homogeneous and stable, can effectively stabilize almost all heavy metal ions in the fly ash for a long time, and allows the fly ash to reach standards for standardlandfill; the purpose of efficiently stabilizing heavy metal ions can be achieved by adopting a small amount of the chelating agent; and the chelating agent has the advantage of high cost performance.
Owner:SICHUAN JIUDINGZHIYUAN INTPROP OPERATIONS CO LTD
Policy Framework User Interface
ActiveUS20170034075A1Easy compositionEasy to useDigital computer detailsRelational databasesHeterogeneous sourceLibrary science
Some embodiments provide, for a policy framework that manages application of a plurality of policies to a plurality of resources in a computing environment, a method for providing a user interface. The method displays a first display area for viewing and editing policies imported by the policy framework from a first several heterogeneous sources. The method displays a second display area for viewing and editing information regarding computing resources imported by the policy framework from a second several heterogeneous sources. The method displays a third display area for viewing and editing binding rules for binding the policies to the computing resources.
Owner:VMWARE INC
Interleukin 2 mutant
PendingCN113667004ARetain biological activityRemove affinityPeptide/protein ingredientsAntibody mimetics/scaffoldsDimerNatural Killer Cell Inhibitory Receptors
The invention provides an interleukin 2 mutant, a fusion protein, an antibody or a conjugate containing the mutant, and a pharmaceutical composition containing the mutant, the fusion protein, the antibody or the conjugate. Compared with wild-type interleukin 2, the mutant eliminates binding with IL-2R[alpha], reduces binding with an IL-2R[beta][gamma] dimer, but keeps stimulating proliferation of tumor immune cells, including but not limited to proliferation of T cells and NK cells. According to the IL-2 mutant, the affinity to a high-affinity IL-2 receptor is eliminated, and meanwhile, the affinity to a medium-affinity IL-2 receptor is reduced. The interleukin 2 mutant provided by the invention is more suitable for the conjugate of the fusion protein and the antibody. The interleukin 2 mutant provided by the invention has extremely few mutation sites relative to wild type interleukin 2, so that the potential immunogenicity is extremely low. Meanwhile, various side effects caused by immunotherapy by using natural IL-2 are avoided.
Owner:SHANGHAI GP BIOTECH CO LTD
Agent for prolonging flower blossom
InactiveCN1903041ASolve the problem of short opening timeExtended opening hoursBiocidePlant growth regulatorsAspirinPhosphate
A chemical for elongating the bloom period of fresh flower is prepared from potassium dihydrogen phosphate, boric acid, aspirin, VB1, VB2 and VB6 through mixing at a temp lower than 16 deg.C, loading in opaque bottle or bag, and sealing.
Owner:岳邦珅
Integrated device for power generation and energy storage based on liquid metal anode direct carbon fuel cell
ActiveCN103972526BPromote oxidationIncrease power generation capacityReactant parameters controlCell electrodesMelting tankEngineering
Owner:TSINGHUA UNIV
Nifedipine controlled release tablet and preparation method thereof
ActiveCN105412040AEasy compositionGood sustained release effectOrganic active ingredientsCoatingsNifedipineFoaming agent
The invention provides a nifedipine controlled release tablet. The nifedipine controlled release tablet comprises a tablet core and a coating wrapping the tablet core, wherein the tablet core comprises a medicated layer and a booster layer compounded with the medicated layer; a drug release hole is formed in the coating on the medicated side; the medicated layer comprises the following ingredients by mass percent: 5-45 percent of nifedipine, 25-85 percent of a suspending agent, 1-25 percent of a penetration enhancer and 0.5-10 percent of a lubricant; the booster layer comprises the following ingredients by mass percent: 45-90 percent of a penetration enhancing polymer, 5-45 percent of a penetration enhancer, 0.1-4 percent of a coloring agent and 0.1-10 percent of a lubricant; the coating comprises a film forming material and a pore-foaming agent, and the mass ratio of the film forming material to the pore-foaming agent is 100:(5-30). The nifedipine controlled release tablet is simple in composition and good in controlled release effect. The invention further provides a preparation method of the nifedipine controlled release tablet.
Owner:XINAN PHARMA
Metadata restoration method and device
ActiveCN105808378AImprove repair efficiencyAchieve fixMemory architecture accessing/allocationInput/output to record carriersRestoration methodTheoretical computer science
The embodiment of the invention provides a metadata restoration method and device, and relates to the field of data storage. The method and the device are applied in a storage array. The method comprises following steps of reading each second logic block through taking the size of each third logic block as a particle size when it is determined that first mapping data is not damaged and second mapping data is damaged; obtaining each logic block address LBA stored in particle data, thus obtaining an LBA range corresponding to the each segment of particle data; determining the identifiers of the third logic blocks corresponding to the LBA range of each segment of particle data through utilization of corresponding relationships between the LBA ranges and the identifiers of the third logic blocks; and generating metadata formed by the identifiers of the third logic blocks when the second mapping data does not contain the metadata containing the determined identifiers of the third logic blocks. According to the method and the device, the technical problems that violation operations cannot be completely eliminated through artificially enhanced training when the metadata is damaged, and much communication cost is increased, in the prior art, are solved; and the effect of improving the metadata restoration efficiency is realized.
Owner:HUAWEI TECH CO LTD
Automatic gain control circuit based on photoresistor
InactiveCN106160688AContinuously adjustable gainVersatileGain controlNegative feedbackAudio power amplifier
The invention discloses an automatic gain control circuit based on a photoresistor. The circuit comprises a controllable gain amplifier, a rectification filtering circuit, an operational amplifier PI regulator and a photodiode drive circuit. An input signal passes through the controllable gain amplifier, thereby obtaining an output signal. The output signal passes through the rectification filtering circuit and the operational amplifier PI regulator, thereby obtaining a control signal. The gain of the controllable gain amplifier is adjusted through the photodiode drive circuit, thereby forming a negative feedback circuit. The controllable gain amplifier is composed of an inverted voltage follower and an inverted amplifier. A resistor R4 is taken as a feedback resistor of the inverted amplifier. The resistor R4 is a photoresistor. According to the circuit, the controllable gain amplifier is composed of the photoresistor, the gain is continuously adjustable, and the amplitude of the output signal can be controlled precisely.
Owner:SOUTH CHINA UNIV OF TECH
Fiber device for fusing fiber distributed feedback (DFB) laser and fiber amplifier
InactiveCN101908708ASimple structureReasonable useActive medium shape and constructionFiber-optic communicationLight source
The invention relates to a fiber device for fusing a fiber distribution feedback laser and a fiber amplifier, belonging to the technical field of fiber layers. The device comprises a pump light source of 980nm, a wavelength division multiplexer, a DFB-FL (Fiber Laser) and an isolator. The device is characterized in that the lengths of reserved erbium-doped fibers when the erbium-doped fibers are arranged at the front end of the DFB-FL and the lengths of the reserved erbium-doped fibers when the erbium-doped fibers are arranged at the rear end of the DFB-FL are increased to 15-120 cm. The invention integrates the generation and the amplification of laser together, has simple structure, and not only reasonably utilizes the pump light, but also reduces the loss caused by fiber splicing. Moreover, the invention is convenient for the multiplexing of a plurality of devices and convenient for forming a sensing network, and the sensing of each stage has own amplification, which guarantees the signal intensity in a sensing process and facilitates demodulating signals in subsequent systems, thus the device can be widely applied to fiber communication and fiber sensing.
Owner:SHANDONG UNIV
High-efficacy multi-workspace automatic loading and unloading press machine set
ActiveCN101549569AEasy compositionSolve the defects that cannot form a continuous automatic production linePressesControl systemWork zone
The invention relates to a high-efficacy multi-workspace automatic loading and unloading press machine set which comprises a loader, a press machine and an unloader, wherein the press machine comprises a stand, a fixed working table, a movable working table, press plates with conveying mechanisms, a press plate lifting limit device, an oil cylinder, a hydraulic system and a control system. The high-efficacy multi-workspace automatic loading and unloading press machine set is characterized in that an upper workspace and a lower workspace which are independent of each other are formed between the fixed working table and the up-down movable working table which are arranged at the middle part of the stand of the press machine, wherein when one workspace is in pressing process, the other workspace in the press machine can do the loading and unloading operations; and the conveying mechanism comprising a motor, a synchronous chain, a film coiling device and a conveying film as a material conveying carrier is arranged on each layer of press plate. The invention can improve the production efficiency of the device and is convenient for forming a continuous automatic production line.
Owner:上海秋林机械有限公司
Novel filler wall for green assembly mode
The invention provides a novel filler wall for a green assembly mode. The filler wall is formed by assembling components which comprise a lower plate, a middle connecting plate, an end connecting plate, an L-shaped connecting plate and / or T-shaped connecting plate and an upper cover plate. For the connecting mode of the components, traditional bonding with mortar is abandoned but a new locking connecting mode is adopted; all components are linked with one another and it seems like that the components are locked; not a single one can be dispensed with while the components are inhibited mutually; the installation is proper and the filler wall has excellent integrity. The components are provided with power lines therein which are easy to install and uninstall. The components of the wall are overlapped vertically so as to avoid problems such as water seepage and air leakage; the wall has excellent energy insulation effect and is durable; the top of the wall adopts rubber damping member toconnect with the floor for excellent damping performance. The components are mainly made of wood chips and wood flame retardants, which reduces design cost and reduce the consumption of building material.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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