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Method for controlling speed increase and reduction of high speed positioning movement of paper pulling device of paper cutter
InactiveCN101130413APrecise positioningWide range of applicabilitySpeed/accelaration controlMetal working apparatusEngineeringLinear acceleration
The invention relates to an acceleration and deceleration control method aiming at high-speed locating motion of paper-pushing device of paper cutter. When the displacement of controlled moving object is larger acceleration and deceleration control with parabola S-shape is adopted. The parabola S-shape is divided into adding acceleration segment (T1), linear acceleration segment (T2), reducing acceleration segment (T3), uniform speed segment (T4), adding deceleration segment (T5), linear deceleration segment (T6) and reducing deceleration segment (T7). Speed control curves of all adjacent segments are connected smoothly. When the displacement of controlled moving object is smaller half-sine acceleration and deceleration control is adopted. The invention selects acceleration and deceleration control strategy according to displacement of controlled moving object. Quick accurate location of paper-pushing device can be realized in ranges of different displacements. At the same time the acceleration impact in high-speed locating process of paper-pushing device of paper cutter can be eliminated completely or decreased obviously. Calculation is simple and it is favor of improving calculating speed of NC system.
Owner:XI AN JIAOTONG UNIV
Unmanned aerial vehicle frequency hopping signal detection and identification method based on clustering analysis
ActiveCN110334591AEfficient removalReduce computing timeCharacter and pattern recognitionTransmissionPattern recognitionDistance matrix
The invention discloses an unmanned aerial vehicle frequency hopping signal detection and identification method based on clustering analysis, and relates to the technical field of unmanned aerial vehicle signal analysis and processing. The method comprises the following steps: acquiring and processing spectral data to obtain an original data set D (that is, an unmanned aerial vehicle frequency hopping signal), detecting the unmanned aerial vehicle frequency hopping signal by adopting a clustering analysis method based on signal similarity feature analysis, and sorting and identifying a detection result. The clustering analysis method comprises the following steps: 1, calculating the distance between each piece of data in an original data set D and other data, forming a distance matrix RS,and finding out the maximum value rmax in all non-zero minimum values ri; 2, setting weights w1 and w2, and calculating a clustering radius R and maximum density data P according to the maximum valuermax and the weights w1 and w2; and 3, classifying the data in the data set D by taking the data P as a center and R as a radius, taking the data which is not successfully classified as a new data setD, and executing the steps 1 to 3 again until a clustering ending condition is met.
Owner:XIHUA UNIV
Device and method for evaluating local defect of cable based on impedance spectrum analysis
PendingCN107942198ASo as not to damageEliminate the effects ofResistance/reactance/impedenceFault location by conductor typesEngineeringElectrical and Electronics engineering
The invention relates to the technical field of measurement and analysis of a transmission line impedance spectrum, and particularly relates to a device and a method for evaluating a local defect of acable based on impedance spectrum analysis. The device at least includes a signal generation unit, a signal acquisition unit, an analysis control unit and a data storage unit. The signal generation unit is for transmitting an incident signal to one end of a cable being tested and for transmitting a reference signal, the incident signal and the reference signal are the same in amplitude and phase,the signal acquisition unit is used for synchronous acquisition of the incident signal and a reflected signal, and the reflected signal is a signal which is generated when the incident signal is reflected after passing through the cable being tested. According to the method, the impedance spectrum of the cable being tested in a frequency sweeping band is measured and calculated via a frequency sweeping method, a spectrum function is transformed in a frequency domain, defects can be located in a new transformed domain, and evaluate severity of the defects can be evaluated. Compared with conventional cable fault positioning technologies, the device and the method disclosed in the present invention are advantaged by strong noise immunity, wide range of application, and capability of quantitative evaluation.
Owner:GUANGDONG NUCLEAR POWER JOINT VENTURE +4
Method for recycling mica, feldspar and quartz sand from kaolin tailings
The invention provides a method for recycling mica, feldspar and quartz sand from kaolin tailings. The method includes the following steps that the kaolin tailings are subjected to selective milling; then screening is conducted, oversize coarse products are almost flaky pure mica, and undersize products are subjected to hydraulic classification so that fine sand containing mud can be removed; classification settled sand is reselected repeatedly so that heavy minerals can be removed; reselected fine sand is subjected to medium magnet and strong magnet operations and then magnetic separation fine sand can be obtained; the magnetic separation fine sand is subjected to the first segment of flotation, the mica can be separated at first, and a fragmental mica product is obtained; the feldspar is separated from quartz in the second segment of flotation; and finally the mica, feldspar and quartz product can be obtained, and the fine sand and milltailings produced in the beneficiation process can be used for unfiring of new building materials like aerated bricks. By adoption of the method, kaolin tailing resources can be utilized comprehensively and effectively; and moreover, the technological process is simple, energy consumption is low, 'zero' release of solid waste is realized, the policy requirements of environmental protection act can be met, and the economic, social and environmental protection benefits are good.
Owner:(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
Remote sensing detection method of motor vehicle exhaust based on combustion equation correction algorithm
ActiveCN106770059AWide range of applicabilityClearly reflect emissionsTransmissivity measurementsCorrection algorithmCombustion
The invention relates to a remote sensing detection method of motor vehicle exhaust based on a combustion equation correction algorithm. The remote sensing detection method comprises the following steps of obtaining a road background light signal according to the detection of a detector of remote sensing detection equipment; obtaining a motor vehicle exhaust light signal according to the detection of the detector of the remote sensing detection equipment; obtaining gas puff values of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust and particulate matter smoke opacity according to the difference between the motor vehicle exhaust light signal and the road background light signal, and calculating the ratio of relative volume concentrations of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust; calculating the volume concentrations of CO2, CO, HC, NO and NH3 in the motor vehicle exhaust by adopting a corrected combustion equation according to the obtained ratio of the relative volume concentrations of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust, and calculating emission factors of all gaseous pollutants in the motor vehicle exhaust on the basis of oil.
Owner:浙江多普勒环保科技有限公司
Site selection method for wind-solar hybrid power station
ActiveCN103310283ATake advantage ofGreat economic and environmental benefitsForecastingElectricityLand resources
The invention provides a site selection method for a wind-solar hybrid power station. The site selection method comprises the following steps: determining a candidate site of the wind-solar hybrid power station; performing micro site selection on a wind generation set; determining the shadow distribution of the wind generation set; determining the mounting position of a photovoltaic array; and verifying and adjusting a site selection result. According to the method, wind energy and solar energy spatial distribution characteristics and the characteristics of wind power plant and photovoltaic power station site selection are considered comprehensively, and wind power plant macro site selection and micro site selection as well as photovoltaic power station site selection and design technology are fused integrally, so that limited land resources and valuable wind energy / solar energy resources are utilized fully, and maximum economic and environmental benefits are achieved.
Owner:STATE GRID CORP OF CHINA +4
Microwave-assisted Soxhlet and solid-phase extraction coupling device, microwave-assisted Soxhlet and solid-phase extraction coupling method and application of microwave-assisted Soxhlet and solid-phase extraction coupling
The invention discloses a microwave-assisted Soxhlet and solid-phase extraction coupling device, a microwave-assisted Soxhlet and solid-phase extraction coupling method and application of microwave-assisted Soxhlet and solid-phase extraction coupling. The microwave-assisted Soxhlet and solid-phase extraction coupling device comprises a microwave-assisted extractor, a Soxhlet extractor, solid-phase adsorbents, an extraction bottle, a reflux condensing pipe and the like, and extraction and purification are synchronously completed by means of coupling microwave-assisted Soxhlet extraction and solid-phase extraction. When in extraction, the solid-phase adsorbents are filled into a Soxhlet extraction device, the extraction bottle is directly placed in the microwave-assisted extractor for extraction after extraction solvents are added into the extraction bottle, analytes are collected into the extraction solvents, and interfering components in samples are adsorbed by the solid-phase adsorbents. High efficiency of microwave-assisted extraction, universality of Soxhlet extraction and high selectivity of solid-phase extraction are combined, the device is simple and convenient in operation, is conveniently used with an analysis instrument, and is suitable for extraction and purification of trace organics in complicated samples.
Owner:SUN YAT SEN UNIV
Time sequence mode sequence extraction method in radio spectrum monitoring data and storage method of radio spectrum monitoring data
ActiveCN108830162ALower performance requirementsReduce storage devicesCharacter and pattern recognitionTransmission monitoringFrequency spectrumTime frequency spectrum
The invention, which relates to the technical field of radio signal monitoring, discloses a time sequence mode sequence extraction method in radio spectrum monitoring data and a storage method of radio spectrum monitoring data. The extraction method comprises: segmentation processing is carried out on each frame of obtained spectrum data according to a same rule and a plurality of groups of segmented spectrum data at a designated frequency band are obtained based on segmentation; and clustering analysis is carried out on each group of segmented spectrum data to generate K clustering centers, and reduction processing is carried out on every two of K clustering centers to obtain a time sequence mode sequence set of all groups of segmented spectrum data, wherein the sequence mode sequence setincludes a plurality of time sequence mode sequences. According to the invention, problems of small-space quick storage of radio multi-station long-term spectrum monitoring data and high-precision quick retrieving and playback are solved; and the time sequence mode sequence extraction method and the storage method are applied to knowledge discovery of radio massive spectrum monitoring data.
Owner:XIHUA UNIV
Primary and secondary lens calibration method based on neural network algorithm
ActiveCN110188321AFast and accurate offsetImprove the efficiency of assembly and adjustmentDesign optimisation/simulationNeural architecturesData setTelescope
The invention discloses a primary and secondary lens calibration method based on a neural network algorithm. The method comprises the steps of firstly, establishing a primary and secondary lens imbalance model through simulation software, and then obtainining a corresponding Zernike polynomial coefficient through the randomly-added imbalance; secondly, combining the offset and a corresponding Zernike polynomial coefficient into a data set, and repeating the above steps to obtain a sufficient data set; then, using the data set as a training sample to train the neural network; and finally, inputting the Zernike polynomial coefficient representing the to-be-tested system into the trained neural network, and further obtaining the misalignment of the primary and secondary lens alignment. The method is suitable for calculating the alignment offset of various types of lenses, can effectively improve the installation and adjustment efficiency of the optical lens of a telescope system, and is suitable for the real-time calibration of the primary and secondary lenses.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
High-strength physical crosslinking hydrogel and elastomer composition and preparation method thereof
The invention discloses a high-strength physical crosslinking hydrogel and elastomer composition and a preparation method thereof. The method comprises the following steps: uniformly mixing a physical crosslinking agent, water and water-soluble organic polymers to obtain a uniform solution, forming the hot solution, and then cooling to obtain a high-strength physical crosslinking hydrogel product; and removing water in the prepared hydrogen to obtain elastomer. The hydrogen and elastomer composition has excellent tensile strength, elongation at break and elastic modulus. By the preparation method of the high-strength physical crosslinking hydrogel and elastomer composition provided by the invention, crosslinking difficulty is reduced, the range of an application system is wide, controllability is high, and residues of organic monomers or initiators are avoided. The preparation method is simple, the cost is low, and the prepared hydrogel and elastomer composition is uniform, is good in transparency, has excellent mechanical properties, is pure, does not have impurities, does not have toxic or side effects, and has wide application prospects in the fields of the industry, biomedicine and the like.
Owner:BEIJING NORMAL UNIVERSITY
Preparation method for fatty acyl amide
ActiveCN104926578AEfficient preparationThe synthesis process is simpleOrganic compound preparationCarboxylic acid amides preparationChemical synthesisOrganic solvent
The invention discloses a preparation method for fatty acyl amide, belonging to the technical field of organic chemical synthesis. The method comprises the following steps: using substituted terminal olefin, carbon monoxide, and aminal or amine as raw materials, then carrying out catalyzation or co-catalyzation with aldehyde via a transition metal catalyst, and carrying out reaction in an organic solvent at 50 to 120 DEG C for 12 to 24 hours under the participation of a ligand or the co-participation of the ligand with an additive; removing the organic solvent when the reaction is completed, and carrying out column chromatography so as to obtain a fatty acyl amide compound. The preparation method for the fatty acyl amide has the following advantages: the raw materials, the catalyst and the additive for the reaction are cheap and easily available; synthetic process is simple; synthetic cost is greatly reduced; reaction conditions are mild; industrialization is easily realized; the raw materials and the catalyst for the reaction are clean and non-toxic and has small pollution to the environment.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Visual analysis method for influence of communication between game players on consuming behaviors of game players
The invention discloses a visual analysis method for influence of communication between game players on consuming behaviors of the game players. The visual analysis method comprises the following steps that (1) data are obtained, wherein attributes in the data comprise character identity labels ID, timestamps t, character included groups g and time-varying character behavior attributes; (2) character centralities are calculated according to the behavior attributes, and a core character and ordinary characters are marked off; (3) behaviors, generated by the influenced characters, in the behavior attributes are defined as behaviors B; (4) influence on the characters, in the different groups, completing the different behaviors B is calculated according to a relationship obtained in the step (3) to obtain an equation system, and the influence of the core character and the ordinary characters is evaluated through the square of partial correlation; and (5) data and models obtained in the step (4) are visualized, wherein visualized images comprise the high-level views and the detail views. The visual analysis method can be used for effectively analyzing the influence of player communication on consumption power and can be applied to many different virtual game platforms.
Owner:ZHEJIANG UNIV
Flotation technology for removing sesquioxides and magnesium impurities in silicon-calcium collophanite
InactiveCN110142145AThe effect of the process method is remarkableEasy to separateFlotationSesquioxidePhosphate
The invention discloses a flotation technology for removing sesquioxides and magnesium impurities in silicon-calcium collophanite. The flotation technology comprises following steps: (1) grinding andmilling silicon-calcium collophanite, adding water to obtain slurry, and introducing the slurry into a positive-negative floatation system; (2) crude positive floatation: adding sodium carbonate takenas a pH adjuster and sodium silicate taken as a phosphate inhibitor, then adding a positive floatation collector, carrying out pneumatic floatation, and taking materials left in the floatation grooveas rougher tailings of positive floatation to obtain a rougher foam product; (3) refining and scavenging of positive floatation: adding sodium silicate into the rougher foam product, carrying out twice refining of positive floatation to obtain a refining foam product, mixing tailings of twice refining, blending, and carrying out positive pneumatic floatation and scavenging; and (4) negative floatation: adding an inhibitor (WFS) into the refining foam product, adjusting the pH value, then adding a collector (WF-01), and carrying out negative floatation to remove magnesium. The technology has the advantages that the amount of added medicaments is low and heating is not needed, and is suitable for removing impurities in middle-low quality silicon-calcium collophanite and extracting phosphorus.
Owner:WENGFU (GRP) CO LTD
Emulsion-in-water insecticide and production process thereof
ActiveCN102630666AWide range of applicabilityReduce degradation rateBiocideAnimal repellantsBiotechnologyCyclohexanone
The invention discloses an emulsion-in-water insecticide and a production process thereof. The preparation comprises the following components in percentage by weight: 0.5-50% of active pharmaceutical ingredient, 8-15% of methylnaphthalene, 0-5% of isophorone, 0-5% of cyclohexanone, 2-8% of triphenylethyl phenol polyoxyethyl ether, 0-3% of calcium dodecylbenzene sulfonate, 0-2% of 1,2-benzisotniazol-3(2H)-one, 5-10% of sucrose, 0-10% of ethylene glycol, 0.5% of acetic acid and the balance of water. The preparation method comprises the following steps of: dissolving the active pharmaceutical ingredient, preparing mother liquor, and performing a shearing process. The emulsion-in-water insecticide disclosed by the invention has the advantages of wide range of application, stable formulation, obvious synergy and simple production process.
Owner:山东荣邦化工有限公司
Transmission grinding clamp device
InactiveCN104029121AReasonable designCompact structureGrinding work supportsSurface grindingCylindrical grinding
The invention relates to a novel transmission grinding clamp device which is a set of processing clamping transmission device used for processing rotation surfaces such as excircles, inner circles and end surfaces of various small slender shaft parts in a choke and pump machining industry by common cylindrical grinding machines, internal grinding machines and surface grinding machines. The transmission grinding clamp device comprises a big bottom plate, an adjustable bottom plate, a clamp body, an adjusting wheel bracket, an adjusting wheel shaft, a belt pulley, synchronizing wheels, a synchronous belt, roller shafts, a positioning pin, a lock screw, a T-shaped lock block, a pinch roller bracket, a pinch roller, a pinch roller shaft, a pinch roller arm, a spring, a backing column, a column, a backing arm and a positioning stop pin; the lower part of the big bottom plate is mounted at a working table of the cylindrical grinding machine; an arc T-shaped groove and a positioning pin hole are formed in the upper part of the big bottom plate; the T-shaped lock block is mounted in the arc T-shaped groove; the positioning pin is mounted in the positioning pin hole; the adjusting bottom plate is mounted at the upper part of the big bottom plate, and connected with the T-shaped lock block and the big bottom plate through the positioning pin and the lock screw.
Owner:JIANGSU FEIFAN INSTR
Adjusting type belt conveying device
InactiveCN111674842AAdjustable lengthAvoid the downside of taking up spaceConveyorsDrive wheelTransmission belt
Owner:蚌埠联玺自动化设备有限公司
Auxiliary fascia console handrail, control method of auxiliary fascia console handrail and vehicle
InactiveCN112406655AMeet the needs of different comfort levelsImprove comfortArm restsDriver/operatorSimulation
The invention relates to an auxiliary fascia console handrail, a control method of the auxiliary fascia console handrail and a vehicle, and relates to the technical field of automobile interior trim.The auxiliary fascia console handrail comprises a transverse adjusting device, a connecting frame, a longitudinal adjusting device and a handrail body which are fixedly arranged, and the connecting frame is movably assembled on the transverse adjusting device and can transversely move on the transverse adjusting device. The longitudinal adjusting device is arranged on the connecting frame, the handrail body is movably assembled on the longitudinal adjusting device and can longitudinally move along the longitudinal adjusting device, and therefore the connecting frame and the handrail body can be sequentially driven by the transverse adjusting device to transversely move, the handrail body can longitudinally move through the longitudinal adjusting device. and further, a driver can adjust theheight and the front-back position of the auxiliary instrument panel handrail according to the height condition and the comfort degree requirement of the driver so as to improve the comfort degree. Therefore, the auxiliary fascia console handrail is wide in application range, and the comfort degree and practicability of the auxiliary fascia console handrail are improved.
Owner:DONGFENG MOTOR CORP HUBEI
A kind of bamboo bundle fiber integrated veneer weaving machine and veneer weaving method thereof
ActiveCN110253701BEasy to useAdjustable braid tightnessCane mechanical workingReed/straw treatmentFiberWire rod
Owner:INT CENT FOR BAMBOO & RATTAN
Bamboo bundle fiber entire veneer knitting machine
PendingCN110091395AEasy to useAdjustable braid tightnessCane mechanical workingBio-packagingFiberEngineering
The invention provides a bamboo bundle fiber entire veneer knitting machine. The machine comprises a frame; a feeding mechanism, a knitting mechanism, a transmission mechanism and a mechanical induction triggering mechanism for triggering the transmission mechanism to act after induction of each feeding of bamboo bundle veneers are mounted on the upper surface of the frame; the feeding mechanism and the knitting mechanism are arranged at the top end of the frame; the mechanical induction triggering mechanism is mounted at the tail part of the feeding mechanism; the transmission mechanism is mounted in the inner side position of the frame; and the transmission mechanism drives transmission of the feeding mechanism and the knitting mechanism. The machine solves the problems of incapability of performing the veneer entire treatment on bamboo bundle units for bamboo recombination in the bamboo bundle fiber entire veneer knitting, inconvenience for adjustment of the knitting elasticity of bamboo bundle entire veneers and inapplicability to knitting of the bamboo bundle units with different thicknesses.
Owner:INT CENT FOR BAMBOO & RATTAN
Preparation method of Trichosanthes kirilowii Maxim oral liquid
InactiveCN110898120AGood for treating constipationQuick Fill and SaveThreaded caps applicationDispersion deliveryAngelica Sinensis RootTrichosanthes kirilowii
The invention discloses a preparation method of Trichosanthes kirilowii Maxim oral liquid, comprising the following steps: step 1, weighing raw materials: weighing 19-21 parts of Agastache rugosus, 56-64 parts of Mangnolia officinalis, 19-21 parts of white paeony root, 9-10 parts of delavay soapberry pericarp seed, 9-11 parts of Platycodon grandiflorum, 14-16 parts of apricot kernel, 60-80 parts of Trichosanthes kirilowii Maxim, 9-13 parts of Angelica sinensis, and 19-21 parts of peach kernel. Trichosanthes kirilowii Maxim added in the invention has the effects of moistening lung for removingphlegm, smoothing intestine and relaxing the bowels and is mainly used for cough caused by dryness and phlegm and constipation due to intestinal dryness; Mangnolia officinalis has therapeutical effecton diseases such as dyspepsia and qi stagnation, abdomen distension and constipation, damp retention in middle-jiao and the like; Angelica sinensis has effects of invigorating qi and blood, regulating menstruation and relieving pain, moistening dryness and smoothing intestine; white paeony root has efficacy of warming yang and eliminating dampness, tonifying body deficiency, strengthening spleenand stomach, etc.; and peach kernel has the effect of promoting digestion and removing food retention. By combining the various medicines to achieve the effects of tonifying middle-Jiao and qi, tonifying spleen and promoting circulation, the oral liquid of the invention is used for treating constipation.
Owner:ANHUI ZANJIATIAN ECOLOGICAL AGRI CO LTD
Double-head automatic polishing machine
InactiveCN106737098AImprove work efficiencyMeet different work needsPolishing machinesGrinding machine componentsElectric machineryEngineering
The invention discloses a double-head automatic polishing machine. The machine comprises a frame; a base is fixedly arranged in the center of the frame; a polishing head capable of rotating is arranged on the base, and is driven to rotate by a first motor beside the base; two polishing mechanisms are symmetrically arranged on two sides of the base; and the polishing mechanisms include polishing arms, fixed bases mounted on the polishing arms, second motors on the fixed bases, and polishing wheels driven by the second motors. The double-head automatic polishing machine adopts two polishing mechanisms symmetrically arranged corresponding to polishing heads, can polish workpieces from different angles to achieve high working efficiency, can be provided with polishing wheels with different materials to satisfy different working demands, and is uniform in polishing strength and excellent in polishing effect. The positions of the polishing arms can be adjusted to adapt to various workpieces with complex shapes, in particular, concave surface products; the consumable loss of the polishing wheels can be automatically compensated; and a dust sucking device is additionally provided, so that the application range is wide, and the generality is high.
Owner:江门市兄弟机械制造有限公司
Back plate wall built-up structure of electronic system
InactiveCN103135672AEasy to assembleQuick assemblyDigital processing power distributionEngineeringMechanical engineering
The invention relates to a back plate wall built-up structure of an electronic system. A circuit board is arranged in containing space of an inner portion of a machine shell. A sliding part is arranged on a relative inner side position of an opening at the back of the containing space. A back cover body of a back plate is covered and located on an opening position of the machine shell. A guide rail part on side boards of two sides of the back plate is embedded in the sliding part to move in a sliding mode. After the machine shell slides down to the location, the bottom of the machine shell is abutted against a dam-board below the back plate and is locked in a lock hole of the machine shell through a locking device of the dam-board to be combined into one. The machine shell from the back cover body can be assembled simply or disassembled quickly through a manual mode instead of using tools. After the machine shell is disassembled, the back cover body can be fixed on a wall surface through a support of the back plate instead of disassembly along with the back cover body, and therefore convenience of replacement is improved, maintenance, cleaning or troubleshooting operations is convenient.
Owner:ADLINK TECH INC
Air temperature testing box
InactiveCN108704675AWide range of applicabilityReduce heat dissipationHeating or cooling apparatusAir-pressure/air-lock chambersControl systemClosed loop
The invention provides an air temperature testing box. The air temperature testing box is characterized by comprising a control system, a box body, and a heater, a refrigerating device, a medium circulation device and an air circulation device which are arranged in an inner cavity of the box body, wherein the medium circulation device is connected with the heater and the refrigerating device respectively; the medium circulation device comprises a sealed circulation tank, a circulation pump and a heat exchanger, which are connected in sequence to form a closed loop; the sealed circulation tankis connected with the refrigerating device; the heater is arranged in the sealed circulation tank and is used for directly heating a medium; the air circulation device comprises a variable frequency draught fan and an air channel plate; the box body is provided with a working region, a working region door, an equipment region and an equipment region door; the heat exchanger, the variable frequencydraught fan and the air channel plate are arranged in the working region. According to the air temperature testing box provided by the invention, a temperature index is higher, the temperature risingspeed is rapid and the working efficiency is high; calibration requirements of various high-precision environment temperature monitoring instruments can be met.
Owner:苏州市计量测试研究所 +1
High performance liquid chromatography analysis method of traditional Chinese medicine prescription Dachengqi decoction
PendingCN111077242AEasy to operateWide range of applicabilityComponent separationDrug efficiencyPharmacology
The invention relates to the field of medicine analysis, in particular to a high performance liquid chromatography analysis method of a traditional Chinese medicine prescription Dachengqi decoction. The method comprises the following steps: (1), making preparation of a test sample; to be specific, precisely taking Dachengqi decoction, diluting the decoction with absolute ethyl alcohol, fixing thevolume, carrying out uniform shaking and centrifuging, taking supernatant, carrying out filtering, and taking subsequent filtrate to obtain a test sample solution; and (2), carrying out high performance liquid chromatography determination; to be specific, precisely absorbing the test sample solution, and injecting the test sample solution into a high performance liquid chromatograph for determination. The method disclosed by the invention can be used for simultaneously determining 10 main medicinal components in the Dachengqi decoction and is convenient to operate; and a basis is provided forestablishing a fingerprint spectrum. The method is suitable for determining the effective components of the Dachengqi decoction prepared from different processed rheum officinale products and has a wide application range.
Owner:GUANGXI INT ZHUANG MEDICINE HOSPITAL
Segmented iron core
InactiveCN102637510AIncrease production costThe method is simple and reliableTransformers/inductances magnetic coresInductances/transformers/magnets manufactureMetallurgyTransformer
The invention relates to a segmented iron core, which comprises an iron core body and is characterized in that the iron core body is provided with multiple air gaps for separating the iron core body into multiple iron core segments; the air gaps are arranged on the iron core body at the part for winding a coil; the iron core body is a rectangular core body; the air gaps are arranged on iron core pillars at the left side and the right side of the rectangular iron core body; each of the iron core pillars at the left side and the right side of the rectangular iron core body is provided with three air gaps; and the iron core body is separated into six iron core segments. By adoption of the segmented iron core, only the cutting times of the iron core pillars need to be increased and other processes do not need to be changed; the method is simple and reliable, the production cost is not increased much, the structure and dimension of a coil do not need to be changed; the segmented iron core is more economic, smaller in volume and better in effect when compared with those obtained by methods of increasing the dimension of a transformer and changing the structure. The number of segments of the iron core pillars can be changed according to requirements and the applicable range is wide.
Owner:无锡希恩电气有限公司
Protection route design method
ActiveCN112660206AWide range of applicabilityMeet station design requirementsRailway traffic control systemsPoint-signal interlocking arrangmentsComputer networkReliability engineering
The invention relates to a protection route design method. The method comprises the following steps of 1) immediately judging whether the direction of a protection route triggering section is consistent with that of a protection route or not when a current protection route is in an unlocked state and the section or the route direction of the protection route triggering section is established; 2) judging whether other adjustment establishment of the protection route is satisfied or not, and if so, triggering a protection route establishment command; and 3) triggering and establishing a protection route, ensuring that the section in the protection route range cannot be the protection route in an enemy direction or conflict, and performing locking and the like. Compared with the prior art, the method has the advantages that the function requirements of two configuration conditions of the protection route are met, and meanwhile the function requirements of the protection route with different lengths in different train modes are met too.
Owner:CASCO SIGNAL
Battery gluing defect detection method and device, electronic equipment and storage medium
The invention discloses a battery gluing defect detection method and device, electronic equipment and a storage medium, and the method comprises the following steps: obtaining a sampling point cloud of a gluing cross section to be detected, and forming a sampling point set; obtaining reference point clouds in a plurality of gluing cross sections adjacent to the gluing cross section to be tested, forming a plurality of standard point sets, and forming a standard template by the plurality of standard point sets; calculating similarity information between the to-be-tested gluing cross section and the standard template based on a dynamic time warping algorithm; judging whether the gluing cross section to be detected has gluing defects or not according to the similarity information; according to the method, the similarity information of the collection point cloud of the to-be-detected gluing cross section and the reference point cloud of the adjacent gluing cross section is calculated and obtained by using the dynamic time warping algorithm, the existence of the gluing defect is quickly screened and determined according to the similarity information, and the detection method is high in efficiency, high in precision and high in accuracy. The method does not depend on specific forms, numerical values, materials, environments and sample plates for analysis, and has the characteristic of wide application range.
Owner:JIHUA LAB
High-temperature-resistance transfer device
InactiveCN107651440AImprove high temperature resistanceImprove stabilityConveyor partsWorking environmentEngineering
A high-temperature-resistant transfer device, including a partition, a clamping mechanism, and a power component that drives the clamping mechanism through a rope control component. The power component is installed on a power plate seat on one side of the partition. The clamping mechanism includes: horizontally installed on The clamping board seat on the other side of the partition, the skateboard frame slidably connected under the clamping board seat, and the pulley assembly and jaw assembly located on the skateboard frame; the rope control assembly includes: guide wheels and transfer wire ropes, of which four The two guide wheels are symmetrically installed on both sides of the upper end of the power plate seat and the two sides of the bottom end of the clamping plate seat, so that the installation positions of the four guide wheels form four corners of a rectangle, and the transfer steel wire rope passes through the partition and winds around these four corners. on a guide wheel, and the transfer wire rope passes through the power assembly and is fixedly connected with the power assembly, passes through the lower end of the skateboard frame and is fixedly connected with the skateboard frame. The invention realizes the transfer action of the product or the carrier under the high temperature environment, has excellent high temperature resistance performance, and is suitable for various working environments.
Owner:SHENZHEN JUNYIHAO TECH
Dibenzofuran acrylate compound and preparation method therefor
The invention discloses a dibenzofuran acrylate compound and a preparation method therefor. The dibenzofuran acrylate compound has a structural formula represented by a formula shown in the description, wherein R1 is H, halogen, alkoxy, nitro or an ester group, R2 is various substituted phenyl, naphthyl, alkyl or heterocyclic aryl, R3 is H, methyl ester or ethyl ester, and R4 is methyl or ethyl. The invention further simultaneously discloses the preparation method for the dibenzofuran acrylate compound. The method comprises the step of subjecting a (E)-2-(2-nitro)phenol derivative, sulfur ylide and propiolate to a [4+1] / [3+2] aromatic cyclization reaction in the presence of a corresponding base at a certain temperature, thereby synthesizing the polyfunctionalized dibenzofuran acrylate compound. The preparation method provided by the invention has the advantages that the operation is simple, the raw materials are readily available, functional groups of reaction are good in tolerance, a plurality of substituents can be simultaneously introduced, the product is easy to separate, and the like.
Owner:ZHEJIANG UNIV CITY COLLEGE
Aqueous emulsion pesticide and production method thereof
InactiveCN102885032AWide range of applicabilityReduce degradation rateBiocideFungicidesCyclohexanoneBenzoic acid
The invention discloses an aqueous emulsion pesticide, which consists of the following components in percentage by weight: 1.5 to 25 percent of chemical material, 10 to 35 percent of dimethylbenzene, 1.6 to 4.5 percent of isophorone, 1.1 to 6.3 percent of cyclohexanone, 2.6 to 8 percent of tri-styrylphenol polyoxyethyl ether, 0.3 to 2 percent of butylbenisothiazolene, 3.2 to 15.3 percent of pesticide emulsifier No.404, 2 to 10 percent of ethanediol and the balance of water, wherein the chemical material is one or two of abamectin, Emamectin benzoate, flusilazole, deltamethrin, pyrimethanil, imazalil, triazophos, chlorpyrifos, kresoxim-methyl, pyridaben, propiconazole and phoxim. The invention has the advantages of wide application range, stable formulation, obvious synergism and simple production process.
Owner:王龙华
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