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38results about How to "Avoid memory effect" patented technology
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Methods for restoring cognitive function following systemic stress
InactiveUS20020187977A1Increase in synaptic strengthInhibitory effect learningBiocideNervous disorderWhole bodyPhysiology
The invention provides methods for treating cognitive decline that is associated with systemic stress.
Owner:SAEGIS PHARMA
Electric device and apparatus for charging battery unit, and method for charging and discharging
InactiveCN1369127AProper charge and discharge controlAlways master capacityParallel/serial switchingSecondary cells charging/dischargingEngineeringBattery cell
An electric device, comprising a plurality of detachable battery units 2, 3, 4, each comprising a battery pack 2B, 3B, 4B and a storage mechanism 11, 12, 13 for storing information about the charging and discharging status of the battery. A connection mechanism is provided to electrically connect and disconnect the electric device 1 in response to each battery cell being attached and detached. The device includes a driving mechanism 9 for driving a load, a charging mechanism 5 for charging the accumulators 2B, 3B, 4B with reference to information stored in the storage mechanisms 11, 12, 13 of the installed battery units 2, 3, 4, and The control means 6 controls the electric power supplied from each battery unit 2, 3, 4 to the drive means 9 with reference to the above-mentioned information.
Owner:TOKYO R & D LTD
Normalized leakage LMS self-adaptive mobile target detector based on FRFT
ActiveCN101984360AQuickly determine the optimal transformation orderAvoid memory effectWave based measurement systemsTime domainSignal-to-noise ratio (imaging)
The invention discloses a normalized leakage LMS self-adaptive mobile target detector based on FRFT, belonging to the technical field of radar signal processing and detecting. The existing statistics method and FRFT method are respectively applied to mobile target detection in sea clutter in the presence of the defects such as undesirable sea clutter inhibition, complex parameter evaluation and poor real-time. The invention combines the time domain LMS algorithm with the FRFT domain mobile target detection method, the kurtosis iterative computation is adopted for rapidly determining a best transform angle; an FRFT domain self-adaptive spectral line enhancer is constructed for improving the signal-to-noise ratio for inhibiting the sea clutter, the leakage factor is introduced into a weighting vector iterative formula for reducing the influence of memory effect to the spectral line enhancer, the step length is normalized in power for improving the convergence rate, and the amplitude value of output signal is regarded as the detection statistic. The detector can self-adaptively inhibit the sea clutter, and the target motion parameter evaluation is high in precision; and the detector is suitable for applying to the detection and filtration of LFM signal, and has popularization and application values.
Owner:NAVAL AVIATION UNIV
Adaptive pre-distortion method based on two-dimensional polling list in OFDM system
ActiveCN101478522AFew parametersGood convergence propertiesMulti-frequency code systemsSynchronous/start-stop systemsRound complexityMemory effect
The invention relates to a self-adapting predistortion method based on a two-dimension query table in an Orthogonal Frequency Division Multiplexing (OFDM) system comprising error calculation of signals after once predistortion processing and twice predistortion processing for OFDM source signals, self-adapting iteration operation of error signals and renewal of predistortion coefficients which enable the error signals to approach to zero. The predistortion processing employs a method that obtains an amplitude predistortion coefficient and a phase predistortion coefficient through a united index of a first dimension index address X(n) and a second dimension index address Y(n), wherein the second dimension index address Y(n) is calculated by historical input amplitude values. The technical scheme of the invention effectively overcomes memory effect of a power amplifier, and effectively expedites convergence rate of the query table at the same time of not increasing the algorithm complexity, obtains smaller mean error and simultaneously reduces the algorithm hardware implementing complexity.
Owner:SPACE STAR TECH CO LTD
Tetraodotoxin deratizing poison bait
InactiveCN102919276ANo secondary poisoningDoes not cause deathBiocidePest attractantsToxicityVirulence
The invention discloses a tetraodotoxin deratizing poison bait which consists of one or more of tetraodotoxin, tetraodotoxin bacterial broth, internal organs of globefish, blood of globefish or ovary of globefish. The bait material consists of one or more of rotten rice, swill-cooked dirty oil and peanut cakes or bean cakes after oil expression. The tetraodotoxin deratizing poison bait is reliable in virulence, definite in toxicity, good in deratizing effect, and easy to degrade, and free from toxic pollution, residuals and secondary poisoning. The components are recycled resources and simple and easy to obtain. In the preparation process of the deratizing poison bait, water liquids are not doped, so that the poison bait is good in dissolubility and palatability.
Owner:河北斯宾塞生物科技有限公司
Standby power supply device
InactiveCN101626166AReduce volumeReduce weightElectrical storage systemFixed capacitor electrodesCapacitanceElectricity
The invention relates to a standby power supply device, which is connected between an AC commercial power and a load so as to supply power to the load, and comprises an AC / DC converting unit used for converting the AC commercial power into DC for output, a magnetic capacitor unit charged by the DC so as to store energy, a DC / DC converting unit used for carrying out the boost / buck conversion for the discharge voltage of the magnetic capacitor so as to output a fixed voltage, an AC / DC converting unit used for converting the fixed voltage into AC for output, and a control unit used for selectively connecting the AC commercial power or the AC / DC converting unit so as to output the AC commercial power or the AC to the load. The standby power supply device uses the magnetic capacitor as an energy storing unit so as to have the advantages of low cost, high energy storing density, small volume, light weight, large capacity, no maintenance, long service life, environment-friendly property, low pollution and the like.
Owner:LITE ON TECH CORP
Macrolide antibiotic high-selectivity solid-phase micro-extraction probe, preparation method thereof and application of probe
InactiveCN109078627AImprove adsorption capacityGood choiceComponent separationOther chemical processesRoxithromycinESI mass spectrometry
The invention discloses a macrolide antibiotic high-selectivity solid-phase micro-extraction probe, a preparation method thereof and an application of the probe. The probe takes roxithromycin as a template molecule, silanization reaction between a molecularly imprinted material and a solid substrate with hydroxyl-rich surface is implemented, and the molecularly imprinted material is bonded onto the surface of the solid substrate to prepare the solid-phase micro-extraction probe. High-selectivity and high-enrichment extraction of macrolide antibiotics in various complicated substrates can be directly implemented by the solid-phase micro-extraction probe, electrospray ionization mass spectrometry analysis of an enriched compound in the probe can be directly implemented by the extracted solid-phase micro-extraction probe under normal pressure open conditions, and the probe has ideal sensitivity and repeatability.
Owner:GUANGDONG INST OF ANALYSIS CHINA NAT ANALYTICAL CENT GUANGZHOU
Cell charger and maintaining method
InactiveCN1862910AImprove efficiencyAvoid memory effectBatteries circuit arrangementsElectric powerElectricitySlow time
The invention relates to the charging and maintenance method used to cell can charge. In the process, one slow time and one charging electric equal are set in advance. On the condition of the using time of the cell below the slow time, when the containing electric mete of the cell exceeds the charging standard, the cell cannot be charged, otherwise, the cell charges; on the condition of untapped time of the cell exceeding the slow time, when the containing electricity mete exceeds the charging standard, the cell discharges firstly, then the cell charges, otherwise, the cell should be charged directly.
Owner:COMPAL ELECTRONICS INC
Determination method for polar components in edible oil
InactiveCN103592198AReduce consumptionAvoid memory effectWeighing by removing componentOil and greaseDistillation
The invention provides a determination method for polar components in edible oil, which relates to determination methods for edible oil. The method comprises the following steps: dissolving a semisolid or solid sample, carrying out filtering, then dissolving an oil sample in a mixed solution of petroleum ether and ether and allowing a volume to be fixed at 10 mL; drying silica gel, cooling the silica gel to room temperature, adding water, transferring the silica gel to the syringe of an injector, compacting the silica gel, adding sea sand or quartz sand and then adding the mixed solution of petroleum ether and ether along the wall of the syringe so as to wet the silica gel; when the surface of the mixed solution of petroleum ether and ether and the surface of sea sand or quartz sand are parallel and level, dissolving the oil sample in a chromatography column, adding the mixed solution of petroleum ether and ether for elution of nonpolar components, collecting eluate to a flask or beaker and carrying out drying by distillation and then weighing; studying separation effects of the nonpolar components; and carrying out calculation.
Owner:XIAMEN UNIV
Method for charging and maintaining a battery
InactiveUS20080100267A1Extended service lifeImprove power efficiencySecondary cells charging/dischargingElectric powerRechargeable cellEngineering
A method for charging and maintaining a rechargeable battery is provided. The method includes the steps of enabling a life extending mode; determining whether the electric potential of the battery is less than or substantially equal to a predetermined charging level; charging the battery when the battery is connected with a power supply; and maintaining the electric potential of the battery at the predetermined battery level, in which the predetermined battery level is set at approximately from 50% to 70% of the full capacity of the battery.
Owner:COMPAL ELECTRONICS INC
Hybrid vehicle
ActiveUS20170028868A1Avoid memory effectAvoid it happening againHybrid vehiclesOperating modesElectricityLower limit
A hybrid vehicle includes an electronic control unit. The electronic control unit is configured to a) control operation of the power generation mechanism such that a state of charge of the secondary battery is kept at a predetermined control target; b) calculate an estimated actual state of charge of the secondary battery based on an integrated current value and a state of charge decrease amount due to self-discharge of the secondary battery, the integrated current value being obtained by integrating an input current and an output current of the secondary battery; and c) when the estimated actual state of charge has decreased below a predetermined first lower limit state of charge, raise the control target.
Owner:TOYOTA JIDOSHA KK
Hybrid vehicle
ActiveUS10011188B2Avoid it happening againInhibition retentionHybrid vehiclesBatteries circuit arrangementsLower limitElectrical battery
A hybrid vehicle includes an electronic control unit. The electronic control unit is configured to a) control operation of the power generation mechanism such that a state of charge of the secondary battery is kept at a predetermined control target; b) calculate an estimated actual state of charge of the secondary battery based on an integrated current value and a state of charge decrease amount due to self-discharge of the secondary battery, the integrated current value being obtained by integrating an input current and an output current of the secondary battery; and c) when the estimated actual state of charge has decreased below a predetermined first lower limit state of charge, raise the control target.
Owner:TOYOTA JIDOSHA KK
Anti-breaking foil device, 9μm~20μm copper foil post-processing anti-breaking foil method, post-processing machine
ActiveCN111304699BAvoid memory effectProcessing speedMeasurement devicesElectroforming processesPower batteryElectrolysis
Owner:GUANGDONG FINE YUAN SCI TECH CO LTD
Bongkrekic acid high-selectivity enrichment solid-phase micro-extraction probe as well as preparation method and application thereof
ActiveCN113713781AEasy to makeLow priceOther chemical processesMaterial analysis by electric/magnetic meansFunctional monomerBongkrek acid
The invention discloses a preparation method of a bongkrekic acid high-selectivity enrichment solid-phase micro-extraction probe. The preparation method comprises the following steps of: providing a solid substrate; carrying out surface modification on the solid substrate to enable the surface of the solid substrate to be rich in methacryloyloxy so as to obtain a surface modified solid substrate; and carrying out a molecular imprinting polymerization reaction on the surface modified solid substrate through a molecular imprinting technology by taking methacryloyloxyethyl trimethyl ammonium chloride and octadecyl methacrylate as functional monomers and vitamin A acid and (R)-12-hydroxy-cis-9-octadecenoic acid as template molecules to enable a molecularly imprinted coating with high selective adsorption capacity on bongkrekic acid to be attached to the surface of the solid substrate. The solid-phase micro-extraction probe disclosed by the invention can be used for efficiently extracting and enriching bongkrekic acid in complex food, the enrichment coefficient can reach thousands of times, and the detection limit can reach the level of [mu]g / L. The probe is simple to manufacture, low in price, disposable, capable of effectively preventing cross contamination and memory effect, and especially suitable for rapid analysis and detection of food safety.
Owner:INST OF ANALYSIS GUANGDONG ACAD OF SCI (CHINA NAT ANALYTICAL
An ultrasonic atomization sampling device
InactiveCN104931420BIncrease contact timeNo residueMaterial analysis by optical meansEngineeringUltrasonic nebulization
The invention discloses an ultrasonic atomization device, which comprises a cavity separated into a coupling chamber and an atomization chamber by an insulating glass installed obliquely; an ultrasonic transducer controlled by an ultrasonic generating circuit is installed on the side wall of the coupling chamber; The upper part of the chemical chamber is connected with an air inlet pipe and a sample feeding pipe, and the lower part is connected with a liquid discharge pipe; a resonant film is installed obliquely on the isolation glass, and the sample feeding pipe extends into the atomization chamber to transport the sample solution to the resonant film. The ultrasonic transducer generates ultrasonic waves, and the ultrasonic waves are coupled and transmitted to the resonant membrane through the coupling chamber, so that the sample solution is atomized into an aerosol, and the carrier gas input from the intake pipe is brought into the sample delivery pipe for processing and enters the analysis device. The invention improves the atomization efficiency of the sample solution, and at the same time prevents the sample from accumulating liquid, effectively avoiding the interference of the accumulating liquid.
Owner:ZHEJIANG UNIV
Dynamic random access memory
ActiveCN111834364AImprove floating body effectAvoid Threshold Voltage FloatingTransistorSolid-state devicesTransistor arrayBit line
The invention provides a dynamic random access memory. The dynamic random access memory comprises a substrate, a plurality of transistors, a plurality of bit line sets, a plurality of conductive structures and a plurality of word line sets, wherein the plurality of transistors are arranged on the substrate in an array, and each transistor sequentially comprises a first conductive layer, a second conductive layer and a third conductive layer from bottom to top; the plurality of bit line sets are arranged on the substrate in parallel in the Y direction and penetrate through the transistors, andeach bit line set comprises a first bit line and a second bit line which are electrically connected with the first conductive layer of the corresponding transistor; the plurality of conductive structures are located in the plurality of transistors, and the conductive structures are electrically connected with the second conductive layers of the transistors and the substrate; and the plurality of word line sets are arranged on the substrate in parallel in the X direction, and each word line set comprises a first word line and a second word line which are respectively arranged on the side wall of each transistor.
Owner:WINBOND ELECTRONICS CORP
Adaptive pre-distortion method based on two-dimensional polling list in OFDM system
ActiveCN101478522BFew parametersGood convergence propertiesMulti-frequency code systemsSynchronous/start-stop systemsTelecommunicationsSelf adaptive
The invention relates to a self-adapting predistortion method based on a two-dimension query table in an Orthogonal Frequency Division Multiplexing (OFDM) system comprising error calculation of signals after once predistortion processing and twice predistortion processing for OFDM source signals, self-adapting iteration operation of error signals and renewal of predistortion coefficients which enable the error signals to approach to zero. The predistortion processing employs a method that obtains an amplitude predistortion coefficient and a phase predistortion coefficient through a united index of a first dimension index address X(n) and a second dimension index address Y(n), wherein the second dimension index address Y(n) is calculated by historical input amplitude values. The technical scheme of the invention effectively overcomes memory effect of a power amplifier, and effectively expedites convergence rate of the query table at the same time of not increasing the algorithm complexity, obtains smaller mean error and simultaneously reduces the algorithm hardware implementing complexity.
Owner:SPACE STAR TECH CO LTD
Low-content carbon and nitrogen sample isotope dual-channel test device
The present invention discloses a device for double channel test of low carbon and nitrogen content sample isotope. The device is as below: adding soil or plant samples to 10 separate oxidation furnaces combined by two sets of oxidation furnaces and sealing; opening switch control solenoid valves corresponding to each oxidation furnace and corresponding solenoid valves on a connecting pipeline; first extracting air in each oxidation tube by a dry pump, maintaining the vacuum at 3*10<-3>mbar; then extracting each oxidation tube by a molecular pump to vacuum of 2*10<-6>mbar; then heating the oxidation tubes to 960 DEG C, filling oxygen to each oxidation tube to completely oxidize samples in the oxidation tubes and to generate carbon and nitrogen oxides and water; sending mixed gas to a reduction furnace to generate N2, CO2 and H2O; then removing water and enriching to collect N2, CO2, H2O in cold traps respectively; and finally gradually releasing gas in the cold traps to a sample gas reservoir B1 in a double-channel injector system, while sending standard reference gas provided by a G3 or G4 into a standard reference gas reservoir B1 of the dual injector system, and starting double channel program detection.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
Engine optimization method based on OpenKiWi evolution and translation system
PendingCN110991194AAvoid memory effect problemsAvoid memory effectNatural language translationEnergy efficient computingTranslation systemAlgorithm
The invention provides an engine optimization method based on OpenKiWi evolution, a translation system and a computer readable storage medium for realizing the corresponding method. The translation system comprises a translation engine matrix, a document input component, a plurality of display interface components capable of displaying a plurality of different translation results, a random selection component, a feedback component and an evaluation component library. The evaluation component library comprises an OpenKiWi engine, a Bleu kernel, a gleu kernel, a vectorization component and a norm calculation engine. Compared with the prior art, the method employs OpenKiWi as the core evaluation component in translation engine matrix selection for the first time, combines the evaluation component based on the GLEU kernel and the BLEU kernel, and introduces the norm of the scoring matrix for judgment, so the memory effect problem in translation engine matrix selection is avoided.
Owner:IOL WUHAN INFORMATION TECH CO LTD
Compound semiconductor, method for manufacturing the same, semiconductor device, and method for manufacturing the same
InactiveUS7268007B2Avoid memory effectImprove controllabilityLaser detailsLaser active region structureDopantElectrical conductor
A first semiconductor layer consisting of AlGaInP is formed on a substrate consisting of GaAs by crystal growth while adding magnesium (Mg) that is a p-type dopant to the first semiconductor layer. A second semiconductor layer consisting of GaAs is then grown on the first semiconductor layer without adding any magnesium to the second semiconductor layer. Thus, the second semiconductor layer can prevent unintended doping (memory effect) produced by magnesium.
Owner:PANASONIC CORP
Tetraodotoxin deratizing poison bait
InactiveCN102919276BExact toxicityReliable toxicityBiocidePest attractantsSecondary poisoningSaxitoxin
The invention discloses a tetraodotoxin deratizing poison bait which consists of one or more of tetraodotoxin, tetraodotoxin bacterial broth, internal organs of globefish, blood of globefish or ovary of globefish. The bait material consists of one or more of rotten rice, swill-cooked dirty oil and peanut cakes or bean cakes after oil expression. The tetraodotoxin deratizing poison bait is reliable in virulence, definite in toxicity, good in deratizing effect, and easy to degrade, and free from toxic pollution, residuals and secondary poisoning. The components are recycled resources and simple and easy to obtain. In the preparation process of the deratizing poison bait, water liquids are not doped, so that the poison bait is good in dissolubility and palatability.
Owner:河北斯宾塞生物科技有限公司
A Frequency Domain Modeling Method of Power Amplifier Based on Complex Inverse Neural Network
ActiveCN110598261BAvoid memory effectFast convergenceDesign optimisation/simulationNeural architecturesTime domainAlgorithm
The present invention disclosed a method of frequency domain modeling based on the plural reverse neural network.First transform the collected time domain signal to the frequency domain, and then use the plurality of the fit neural network to model the frequency domain data. After obtaining the output data of the neural networkThe leaf transform is converted to the time domain.Modeling the power amplifier through this method, largely reduces the frequency domain error of the amplifier.It can better describe the nonlinear characteristics and memory effects of the power amplifier through the present invention.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Surface agent having discharge function and battery using the same
InactiveUS20120077086A1Avoid memory effectEffective maintenanceElectrode carriers/collectorsCells structural combinationElectrical conductorMetallic materials
The surface agent contains a grounding layer, two nucleic acid molecular layers, a partitioning grid layer, a silver circuit layer, and two insulating layers. The grounding layer is made of carbon and metallic materials such as aluminum, copper, and is connected to the negative electrode of a rechargeable battery The silver circuit layer is connected to the positive electrode. The nucleic acid molecular layers are positioned between the silver circuit and grounding layers and the partitioning grid layer is sandwiched therebetween. The nucleic acid molecules are produced by mixing ferric oxide extracted from mulberry fruit and acetate. As the ferric oxide is a bad conductor capable of carrying charges, electricity would suffer more loss as it is conducted through the bad conductor. As such, the rechargeable battery could be continuously discharged, and the memory effect is therefore avoided to maintain the rechargeable battery's capacity.
Owner:CHEN KUAN JEN
Power amplifier frequency domain modeling method based on complex reverse neural network
ActiveCN110598261AAvoid memory effectFast convergenceNeural architecturesSpecial data processing applicationsTime domainFast Fourier transform
The invention discloses a power amplifier frequency domain modeling method based on a complex reverse neural network. The power amplifier frequency domain modeling method includes the steps: firstly,collected time domain signals are converted into a frequency domain, then frequency domain data are modeled through the fitting effect of a complex reverse neural network, and after output data of theneural network are obtained, the frequency domain output data are converted into the time domain through inverse fast Fourier transform. Modeling is carried out on the power amplifier through the power amplifier frequency domain modeling method, so that the frequency domain error of the power amplifier is reduced to a great extent. According to the invention, the nonlinear characteristic and thememory effect of the power amplifier can be well described.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Method of monitoring a battery and alternator assembly for an automotive vehicle engine
ActiveCN107667032AHigh torqueImprove performanceSpeed controllerBatteries circuit arrangementsElectricityAlternator
The invention pertains to a method of monitoring a battery (1) and an alternator (4) and their electrical connections, the battery (1) comprising a positive and a negative terminal and the alternator(4) supplying a current regulator (3) disposed between them while exhibiting, on one side, a first and a second electrical connection respectively to the positive and negative terminals and, on the other side, electrical connections with the alternator (4), the battery (1) exhibiting a level of charge and being recharged by the alternator (4) via the regulator (3). The second electrical connectionbetween the negative terminal of the battery (1) and the regulator (3) is interrupted upon a demand for motor torque above a predetermined value of torque under a first condition that the effective voltage of the battery (1) is greater than a predetermined minimum voltage, then reestablished for a motor torque demand below the predetermined value.
Owner:PEUGEOT MOTOCYCLES
A kind of hemt epitaxy structure and preparation method
InactiveCN106252403BImprove leakageImprove localizationSemiconductor/solid-state device manufacturingSemiconductor devicesGate leakage currentHigh resistance
The invention discloses an HEMT epitaxial structure, which structurally comprises a substrate (10), a low-temperature GaN buffer layer (20), an undoped GaN high-resistance layer (30), an AlN isolation layer (40), an undoped GaN channel layer (50), a barrier layer (60) with the Al content thereof to be changing in the stepped manner, and an AlN barrier layer (70). The undoped GaN high-resistance layer and the AlN isolation layer grow after the annealing treatment of the low-temperature GaN buffer layer. Compared with the carbon-doped manner or the iron-doped manner, the crystallization quality is effectively improved and the memory effect caused by ion doping is avoided. Meanwhile, the structure is provided with multiple channels, wherein two main channels are formed at the interfaces of an AlN barrier layer and an undoped GaN channel layer with the barrier layer with the Al content thereof to be changing in the stepped manner, and multiple auxiliary channels are formed at the interface of the barrier layer with the Al content thereof to be changing in the stepped manner. Compared with a conventional HEMT device, the current driving capability of the HEMT device is enhanced. The gate leakage current of the HEMT epitaxial structure and the leakage current of the buffer layer are small, and the current driving capability is strong. Therefore, the HEMT epitaxial structure can be applied to the field of high-power electronic devices. In addition, the invention further provides a preparation method of the HEMT epitaxial structure.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Power system and control method of a range-extended pure electric vehicle
ActiveCN107097656BReduce manufacturing costReduce weightHybrid vehiclesPropulsion using engine-driven generatorsFuel tankEngineering
Owner:JIANGSU HUAZI AUTO INDUSTRY CO LTD
Preparation method of homogeneous spinning solution
ActiveCN112430855AAvoid the problem of easy air entrapmentAvoid memory effectMonocomponent protein artificial filamentArtificial filaments from cellulose solutionsCellulosePolymer science
The invention relates to a preparation method of a homogeneous spinning solution of a mixture of a low-temperature molten salt and cellulose, keratin or cellulose keratin. The preparation method comprises the following steps: a, premixing the low-temperature molten salt at the temperature of t1 with the cellulose, the keratin or the cellulose keratin, to obtain a fluffy premix A of which the ratioof bulk density to compaction density is 0.29-0.32, wherein t1 is 5-50 DEG C; and b, fully mixing the premix A with the low-temperature molten salt at the temperature of t2 until a homogeneous transparent solution is obtained, wherein t2 is more than t1 and less than 210 DEG C. According to the preparation method disclosed by the invention, the low-temperature molten salt is added through the twosteps, so that sufficient swelling of the cellulose and the keratin is guaranteed, the phenomenon of a white core is avoided, dissolving time is shortened, and excessive degradation in a dissolving process is prevented.
Owner:ZHENGZHOU ZHONGYUAN SPANDEX ENG TECH
Atmosphere volatile organic compound condensation and concentration sampling device and method
ActiveCN103439153BIncrease consumptionMeet the needs of online monitoringComponent separationWithdrawing sample devicesSemiconductor chipEngineering
The invention discloses an atmosphere volatile organic compound condensation and concentration sampling device which comprises a low-temperature environmental cabinet and an atmosphere sampler, wherein a low-temperature cold trap device is arranged in the low-temperature environmental cabinet, and comprises a first-stage cold trap and a second-stage cold trap, the first-stage cold trap comprises a first condensation pipe and a first semiconductor chilling plate group, a first heating wire is wound on the first condensation pipe, the second-stage cold trap comprises a second condensation pipe and a second semiconductor chipping plate group, and a second heating wire is wound on the second condensation pipe. The invention also discloses an atmosphere volatile organic compound condensation and concentration sampling method. The atmosphere volatile organic compound condensation and concentration sampling device and method disclosed by the invention are capable of meeting the demand on online automatic monitoring of the content of a volatile organic compound, and can be used in on-site online automatic monitoring of the content of the atmosphere volatile organic compound.
Owner:苏州聚阳环保科技股份有限公司
Double-channel full-automatic intelligent rapid mercury vapormeter
PendingCN113189027AShorten test timeIncrease the number of disksColor/spectral properties measurementsAbsorption cellPhysical chemistry
A double-channel full-automatic intelligent rapid mercury vapormeter comprises an automatic sample introduction system, a double-channel system, an absorption cell system and a gas path system, wherein the automatic sample introduction system is connected with the double-channel system and used for inputting a sample boat containing a sample into the double-channel system through the automatic sample introduction system, the absorption cell system is connected with the double-channel system. The two-channel system pyrolyzes mercury in a sample into mercury elementary substance steam in a thermal cracking manner, the mercury elementary substance steam is input into the absorption cell system under the action of the gas path system, and the absorption cell system is used for detecting the absorbance of the mercury elementary substance steam in the absorption cell to a light intensity difference effect caused by characteristic spectral lines emitted by the mercury special light source. According to the double-channel full-automatic intelligent rapid mercury vapormeter, a double-channel sequential detection mode is utilized, and two sample results are measured at the same time through one-time testing, so that the sample testing time is greatly shortened, and the detection efficiency is improved.
Owner:BEIJING HAIGUANG INSTR
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