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72results about How to "Realize safe and reliable" patented technology
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Modular multilevel converter high voltage direct current (MMC-HVDC) converter station starting method used for power network black start
InactiveCN102983568ASecure bootRealize safe and reliableAc network circuit arrangementsPower conversion systemsPre-chargeHigh-voltage direct current
The invention discloses a modular multilevel converter high voltage direct current (MMC-HVDC) converter station starting method used for a power network black start and belongs to the technical field of power transmission and distribution. The technical scheme is that corresponding starting method and strategy are provided aiming at a two-end system and a multi-end system, wherein the method and strategy for the two-end system converter station black start comprise the steps of firstly, starting an active side converter station, closing a direct current transmission line disconnecting link, and charging a passive side converter station at the same time, secondly, carrying out charging in an alternation cycle sorting conversion mode, locking the converter station for a short time when pre-charging is finished, and finally, unlocking the converter station, placing a constant alternating-current voltage controller and fishing start-up. The method and strategy for the multi-end system converter station black start comprise the steps of respectively connecting a resistance (Rx) with positive and negative electrodes on the outlet side of each end of the multi-end system in series on the basis of the steps of the start-up of the two-end system and guaranteeing that the black start can be carried out at any ends with other ends keeping in stable operations. Therefore, reliability of power supply is guaranteed.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Elevator equipment state monitoring system based on large data technology
InactiveCN104944240ARealize safe and reliableAchieving Process StabilityElevatorsData compressionData set
The invention discloses an elevator equipment state monitoring system based on the large data technology. The system comprises a data collection unit, a communication system unit, a data diagnosis platform and a visual display unit. According to the system, a data collection device installed on a site collects elevator running state data, then the real-time data are pushed to an openPlant real-time database, the collected data are efficiently compressed and historically stored for a long time, and a client side application convenient and easy to use and a universal data interface are provided at the same time; by means of a high-speed two-way data transmission mechanism, on the one hand, multi-target elevator equipment real-time monitoring mass data are uploaded to a monitoring center; on the other hand, feedback and early warning for diagnosis results are achieved. By means of the data visual technology, transmission and communication interaction is effectively and clearly achieved, key information is more easily understood, more easily monitored effectively, and more visually transmitted, and therefore deep insight is achieved for a redundant and complex data set.
Owner:CHONGQING UNIV
Liquid chromatograph
InactiveUS20110167898A1Reduce dead volumeImprove analytical precisionComponent separationSurface/boundary effectDiffusionInjection port
A liquid chromatograph provided here is adapted to enable the lengths of tubing for connecting the respective constituent elements thereof to be minimized by making the positions of the respective constituent elements including a detector and a column movable and adjustable in order to reduce the dead volume in a liquid chromatograph system in plumbing and increase the analytical precision through prevention of diffusion of samples and rapid sending of a mixed liquid solvent. Furthermore, in order to prevent cross-contamination due to residues of samples and cleaning liquid in a flow channel of the liquid chromatograph system, an injection port in which a needle can be inserted is so provided as to communicate directly with a flow channel of an injection valve.
Owner:GL SCI
Steel truss girder assembling, erecting and construction process
ActiveCN103614969AThe construction process steps are simpleSimple and fast operationBridge erection/assemblyButtressSupporting system
The invention discloses a steel truss girder assembling, erecting and construction process. A steel truss girder is a girder body, the front end and the rear end of an erected steel truss girder are supported on a first permanent buttress and a second permanent buttress respectively, the steel truss girder is formed by splicing a plurality of steel truss girder segments in an end-to-end mode, and the first permanent buttress and the second permanent buttress are located on the two sides of a main riverway of a river respectively. Assembling and erecting of the steel truss girder include the first step of construction of temporary supporting systems, longitudinal sliding rails and transverse sliding rails, the second step of assembling, erecting and longitudinal moving of the steel truss girder at different times, the third step of transverse moving of the steel truss girder and the fourth step of setting of the girder, wherein in the first step, the temporary supporting systems are constructed on one side of the first permanent buttress and on one side of the second permanent buttress respectively, the two longitudinal sliding rails used for the steel truss girder to move longitudinally and the two transverse sliding rails used for the steel truss girder to move transversely are distributed on the temporary supporting systems; in the second step, the steel truss girder segments are assembled more than once from front to back and are longitudinally moved many times. The steel truss girder assembling, erecting and construction process is simple in process, reasonable in design, convenient to achieve, good in construction effect and little in construction difficulty, and the assembling and erecting processes of the steel truss girder can be conveniently and quickly achieved.
Owner:NO 1 ENG LIMITED OF CR20G
Resident health card based on entity card virtualization achieving method and system platform
InactiveCN106355004ALow costRealize service collaborationTransmissionSpecial data processing applicationsVirtualizationCard reader
The invention is a system platform and particularly relates toa resident health card based on entity card virtualization achieving method and system platform, comprising a cloud platform of resident health card, a residents health card service platform, a health card management platform, a mobile phone APP, a card reader and an HIS system, wherein the resident health card based on entity card virtualization achieving method and system platform intelligence cloud service, which is in high operation efficiency.
Owner:挂号网(杭州)科技有限公司
System and method for intelligently and automatically correcting temperature line of temperature control electric blanket
InactiveCN101943922AImprove calibration accuracyHigh speedThermometer detailsSleeping rugProduction rateTemperature control
The invention relates to a system and a method for intelligently and automatically correcting the temperature line of a temperature control electric blanket. The temperature line correction process of the system is automatically controlled and finished by MCU software and does not need manual regulation any more. The method comprises the following steps of: skillfully selecting a temperature reference point by adopting an accurate thermistor; acquiring the temperature signal of the accurate thermistor and the temperature signal of the temperature line; comparing the temperature signal of the accurate thermistor with the temperature signal of the temperature line to obtain a difference value; storing the difference value as a compensation signal in an E2PROM; automatically reading the compensation signal when the temperature line is used every time; and superimposing the compensation signal on the actual temperature of the temperature line so as to finish the automatic correction of the temperature line and fulfill the aim of ensuring the temperature control precision and the consistency of mass-produced products. The method breaks through the bottleneck of manual correction of electric blankets during the mass production, obviously improves the temperature control precision of the mass-produced products and greatly improves the production rate and daily output at the same time, and has the characteristics of intelligence, precision, convenience, and time and labor saving.
Owner:BEIJING MXTRONICS CORP +1
Rail transit half-height emergency exit lock and half-height emergency exit
ActiveCN104196373ARealize the locking functionRealize signal feedbackBuilding locksLocking mechanismEmergency exit
The invention discloses a rail transit half-height emergency exit lock which comprises a mounting base and a locking mechanism arranged on the mounting base. The locking mechanism comprises an external lock disc arranged on the mounting base through a rotating shaft, an internal lock disc, a lock arm arranged on the mounting base and a drive mechanism. A lock opening matched with a sliding door lock pin is arranged on the external lock disc. The external lock disc is provided with a lock-up position for limiting the sliding door lock pin in the lock opening and a releasing position for releasing the sliding door lock pin. The internal lock disc and the external lock disc are coaxially fixed with each other. The lock arm is provided with a first working position abutting against the internal lock disc to keep the external lock disc in the lock-up position state or in the releasing position state and a second working position for releasing the internal lock disc. The drive mechanism is used for driving the lock arm to be switched between the first working position and the second working position. The invention further discloses a rail transit half-height emergency exit. According to the rail transit half-height emergency exit lock and the rail transit half-height emergency exit, features of all parts are fully utilized to conduct designing, reasonable arrangement of the structure is achieved, the lock is simpler and more reliable to use, processing cost is reduced, and the mounting requirement is lowered.
Owner:HANGZHOU OPTIMAX TECH
Earthing lines of power transmission lines overhauling and hooking method thereof
ActiveCN101692541AAdd information sourceGuaranteed to be correctProgramme controlComputer controlEngineeringHigh pressure
The invention provides earthing lines of power transmission lines overhauling and a hooking method thereof, and the earthing line comprises a wire end clip capable of hooking and dismantling with a power transmission line, an earth terminal fixed clamp capable of being fixedly connected with an earth terminal and an earth short-circuit line for connecting the wire end clip and the earth terminal fixed clamp. The wire end clip is also connected with an insulating rope for performing the operation of hooking and dismantling the wire end clip, a GPS information transceiver is arranged on the earth terminal fixed clamp, and the wire end clip is also provided with a reversed hook and a magnet sheet. The invention can realize GPS precise location for power transmission line overhauling positions, avoid easily-generated risks of malposition caused by false hooking and dismantling and the process of hanging earthing lines by maintenance personnel, lower work difficulty and be widely used in overhauling earthing protection of high-voltage power transmission line.
Owner:STATE GRID SHANDONG ELECTRIC POWER +1
Bypass operator based elliptical curve anti-bypass attack method
InactiveCN101183945AQuick implementationRealize safe and reliableRadio/inductive link selection arrangementsSecuring communicationEllipseTheoretical computer science
The invention discloses an ellipse curve method for anti bypass attack based on the bypass operator, belonging to the technical field of information security, which comprises the following steps: firstly the mistakes of the prior technical proposal are modified to get the correct bypass equivalent execution sequence of the doubled point-point addition operation of the ellipse curve in the finite field Fp and the bypass equivalent execution sequence is expressed as a correct operator module matrix of doubled point-point addition of the ellipse curve; then aiming at the code mechanism of the ellipse curve, an implementation scheme of the C++ software is made, and the core steps of the encryption and decryption of the code mechanism of the ellipse curve is achieved in the software technical proposal, namely, a scalar point multiplication operation of the ellipse curve based on the bypass operator in the finite field. The invention has an advantage of improving the anti bypass-attack ability of the code of the ellipse curve according to adding correct pseudo operation sequence.
Owner:SHANGHAI JIAO TONG UNIV
Battery module centralized storage and charging-discharging box system capable of ensuring fire fighting safety
PendingCN107749446AFast deliveryEnsure safetyCells structural combinationCell component detailsNew energySpray nozzle
The present invention discloses a battery module centralized storage and charging-discharging box system capable of ensuring fire fighting safety. The battery module centralized storage and charging-discharging box system is used in the field of energy storage systems and new energy vehicle batteries, and comprises a box system formed by combining one or a plurality of boxes, and a water tank on one side of the box system, wherein the box comprises an outlet door, a fire fighting door, a composite sensor, a fire fighting spraying nozzle and a two-way movement mechanism positioned inside the box and capable of pushing a battery out of the outlet door and the fire fighting door. In the prior art, when the individual box in the existing box system is on fire, the sub-bin sprays the fire extinguishing gas, and the fire on the battery in the box cannot be completely extinguished. A purpose of the present invention is mainly to solve the problem in the prior art so as to prevent the disasterexpansion caused by the spreading of the fire on other boxes. According to the present invention, with the battery module centralized storage and charging-discharging box system, the fire condition can be timely detected, and the battery can be pushed out of the fire fighting door until the battery is immersed in the water tank, such that the safety of other boxes in the box system can be ensured, and the absolute safety and reliability of the charging station can be achieved; and the taking-placing operation of the normal battery module is performed at the door side of the box, such that f the door to the warehouse, will not be interference by the sink.
Owner:重庆聚陆新能源有限公司
Electronic lock keyless entry system with random key
InactiveCN106097511APrevent decryption from cracking in batchesEasy to carryIndividual entry/exit registersComputer hardwareComputer science
The invention discloses a random key electronic lock keyless entry system, which is composed of an electronic key and an electronic lock. The key data of the electronic lock is changed by the user setting, the electronic lock is paired with the electronic key without restriction, and the electronic key is paired with the key data of at least one electronic lock. The verification code of the system is encrypted by the random key and private key code in the conditional interception of nonlinear changes. The verification code is irregular each time, and the private key code is not exposed during the verification process, which effectively prevents chip decryption from being cracked in batches and signals Interception, analysis and cracking are realized to be safe, intelligent, flexible, easy to carry and easy to use.
Owner:林海航
System and method for realizing identity recognition based on radio frequency identification technology
InactiveCN107862226AImprove experienceEasy to implementFinanceMemory record carrier reading problemsIdentity recognitionComputer module
The invention discloses a system and a method for realizing identity recognition based on the radio frequency identification technology. The system comprises a radio frequency polling module which isarranged on the ground and used for polling a radio frequency tag and transmitting the information carried by the radio frequency tag to a control module when polling the radio frequency tag; the control module which is used for identifying the corresponding user of the radio frequency tag according to the information and transmitting a performing signal to a performing module after identifying the corresponding user; and the performing module which is used for performing the preset operation after receiving the performing signal from the control module.
Owner:ALIBABA GRP HLDG LTD
Ink supplying system
ActiveCN106799894AReal-time access to stress conditionsStructural solutionPrintingEngineeringPressure detection
The invention provides an ink supplying system which includes a main ink cartridge, ink inlet pumps, a secondary ink box, a first ink return valve, nozzles, ink supplying valves which correspond to respective nozzles and a controller. The secondary ink box is provided with a first pressure detection apparatus therein. Respective nozzles are provided with corresponding second pressure detection apparatuses. The controller controls the powers of the ink inlet pumps on the basis of pressures detected by the first pressure detection apparatus and stable pressures required by respective nozzles so as to enable the secondary ink box to separately generate constant ink supply pressures corresponding to respective stable pressures. The controller opens a corresponding ink supplying valve when the pressure detected by one of the second pressure detection apparatuses does not amount to the stable pressure as required by the corresponding nozzle, and closes the corresponding ink supplying valve when the pressure detected by the second pressure detection apparatus amounts to the stable pressure as required by the corresponding nozzle. The ink supplying system does not need to configure corresponding gas path control for each nozzle by conducting pressure detection and constant pressure control of the secondary ink box. The ink supply system is easy, simple and reliable to implement.
Owner:NEW FOUNDER HLDG DEV LLC +2
Realization method for simulating combustion flame of aviation kerosene by using combustion flame of propane
InactiveCN107045564ARealization of Simulated Aviation Kerosene Combustion Flame SafetyRealize safe and reliableDesign optimisation/simulationEducational modelsAviationKerosene
The invention discloses a realization method for simulating combustion flame of aviation kerosene by using combustion flame of propane, and relates to the technical field of fire safety. By analyzing a combustion characteristic of the aviation kerosene, a corresponding combustion mathematic model is built; and a model algorithm for simulating combustion of the aviation kerosene by utilizing combustion of propane is realized mainly from three aspects of heat release rate equivalence, combustion rate equivalence and flame height equivalence. The heat release rate equivalence shows that heat released in a combustion process is same, and can be represented as the harm degree of fire in the combustion process. The combustion rate equivalence shows that the fuel combustion consumption is same. The flame height equivalence shows that fire intensity of combustion is similar. The propane flow required for simulating the flame height of the aviation kerosene under a certain area is calculated according to the method; and the flame height generated by using a system for simulating a combustion state of the aviation kerosene has relatively high similarity with that of the aviation kerosene.
Owner:中国船舶重工集团公司第七〇三研究所
Provisioning server and provisioning method
InactiveCN101132570AReliable configurationReliable implementationRadio/inductive link selection arrangementsWireless communicationDocumentationDatabase
This invention discloses a pre-configuration server for a mobile terminal and a realization method, in which, the method includes: a pre-configuration server generates a pre-configuration document dynamically in a document template according to a request to the terminal and parameter information of the terminal and sends the document to the terminal to finish the pre-configuration.
Owner:ZTE CORP
Self-discharging vertical radioactive iodine-131 distilling apparatus
InactiveCN104599733AImprove production efficiencyImprove work efficiencyRadioactive sourcesElectricityCrucible
The invention provides a self-discharging vertical radioactive iodine-131 distilling apparatus. The production device comprises a motor I, a slide groove, a distilling furnace, an iodine catcher and a controller. The motor I is fixedly connected with the slide groove. The slide groove is connected with the distilling furnace in a sliding mode. The distilling furnace is connected with the iodine catcher through a pipeline. The controller is electrically connected with the motor I, the distilling furnace and the iodine catcher. The self-discharging vertical radioactive iodine-131 distilling apparatus has the automatic distillation residue discharge function, iodine-131 can be efficiently distilled out of activated TeO2, an uncovered target cylinder can be directly placed in a ceramic crucible to be distilled, the per unit yield of the device is remarkably improved, the radioactive contamination risk is lowered, and the radioactivity solid waste yield is decreased. The production device is compact in structure, suitable for the Na131I destructive distillation in a shielding working box with the small effectively operation space, and high in operation stability, convenience and safety.
Owner:INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
Clouded management platform
ActiveCN104009864AImprove reading and writing efficiencyGuarantee safe and reliableData switching networksWide areaStorage management
The invention discloses a clouded management platform and relates to the technical field of could computing. A system comprises a resource scheduling module, a virtual machine module, a core management module, a storage management module and a maintenance upgrading module. The core management module is used for constructing a management system core and setting up a high-speed data path. The storage management module is used for independent layering management of data. The maintenance upgrading module is used for maintaining and upgrading a client. The core management module, the storage management module and the maintenance upgrading module are respectively connected with a connecting bus. The connecting bus is respectively connected with the resource scheduling module and the virtual machine module. The clouded management platform has the advantages that a traditional storage system is optimized, a layering and classifying storage management mechanism is adopted, the data read-write efficiency is improved, and more importantly, the safety and the reliability of the data of the system can be effectively ensured. The storage management module supports network storage crossing the wide area so that people can get access to a server anywhere through a client side.
Owner:西安募格网络科技有限公司
Power transmission device
ActiveCN102713350AEasy to manufactureIncreased durabilityHauling chainsHoisting chainsSpherical shapedEngineering
Provided is a power transmission device using a metal ball chain having high durability. The power transmission device is provided with a first pulley (11a), a second pulley (11b), and a ball chain (20) wound around the first pulley (11a) and the second pulley (11b). The ball chain (20) has a plurality of metal ball members (21) having a hollow spherical shape, and metal link members (23), each of which couples two adjacent ball members (21) to each other. The metal ball members (21) are provided with two link holes (22) for connecting with the link memebers (23) at two sides of a diameter direction. The link memebers (23) are provided with connecting rods (24) which is straight-line rodlike and can enter and exit with respect to the ball members (21) through the link hols (22), and anti-fallout ends (25) which is disposed on two ends of the connecting rods (24) and inside the ball memebers (21) and have a size making the connecting rods (24) be unable to pass through the link holes (22). The first and second pulleys (11a, 11b) have, in the outer circumferential direction, a plurality of ball engagement grooves (12) in which the ball members (11) are engaged. The pitch between the two adjacent ball engagement grooves (12) in the circumferential direction is set to be smaller than the pitch between the two adjacent ball members (21) in the ball chain (20).
Owner:YKK CORP
Pose detection method, system, medium and device for grounding knife switch in switch cabinet
InactiveCN109887031AImprove detection accuracyDoes not affect work performanceImage analysisGravity centerWork Performances
The invention discloses a pose detection method, system, medium and device for a grounding knife switch in a switch cabinet. The method comprises the following steps of acquiring a grounding knife-switch image in the moving process of a grounding knife-switch moving contact with a mark point through image acquisition equipment; carrying out segmentation on mark points in the collected grounding knife-switch image to obtain each mark point; calculating gray scale gravity center pixel coordinates of each mark point in the grounding knife-switch image; and obtaining the position and the rotationangle of the earthing knife-switch moving contact through calculation according to the calibration parameters of the image acquisition device and the gray center-of-gravity pixel coordinates of each mark point. According to the invention, an optical imaging non-contact detection method is adopted, the three-dimensional position and attitude information of the earthing knife-switch in the opening and closing process can be obtained in all directions, and the method has the advantages of high detection precision, safety, reliability and no influence on the working performance of the earthing knife-switch in the switch cabinet.
Owner:STATE GRID HUNAN ELECTRIC POWER +2
Urban water supply pipe network terminal low pressure control system and method
ActiveCN106444516ARealize safe and reliableGuarantee safe and reliableProgramme controlComputer controlPressure riseUrban water supply
The invention discloses an urban water supply pipe network terminal low pressure control system and method. The system and the method can timely monitor and automatically adjust abnormal regional pipe network pressure so that the pressure rises, and can handle emergency. The system comprises a data acquisition device, remote transmission equipment, a monitoring center, a data storage terminal, a feedback controller and control devices. The pressure is monitored in real time by data monitoring and remote control on an upstream pipe network, a target pipe network and an adjacent pipe network, meanwhile, the pressure of the three pipe networks is uniformly deployed and controlled under the coordination of the control devices, and normal water supply of a low pressure residential area is guaranteed from the overall pipe network; the pressure of a target residential area is limited by using the feedback controller, so that the safety and reliability of the whole pipe network are guaranteed; and the system is simple in structure and convenient to control, can realize automatic control, and improves the actual coverage of the pipe network.
Owner:BEIFANG UNIV OF NATITIES
Blasting multi-branch network connecting method
InactiveCN111256553AFirmly connectedSmall error changeBuilding repairsBlastingDetonatorArchitectural engineering
The invention discloses a blasting multi-branch network connecting method. The connecting method comprises the following steps: averagely dividing a to-be-blast area into a plurality of sub blast areas; arranging multiple groups of detonators at the inner layer of a blasting area of each sub blast area for blasting, wherein each group of detonators comprises electronic detonators and nonel detonators, and the blasting area accounts for 3 / 5 to 4 / 5 of the corresponding sub blast area; at a starting point of the blasting area, detonating by the nonel detonators; stimulating the electronic detonator at the starting point by the detonated nonel detonators; and sequentially detonating the rest groups of detonators to blast after the electronic detonator at the starting point is detonated. According to the blasting multi-branch network connecting method provided by the invention, each group of detonators comprises the electronic detonators and the nonel detonators, the electronic detonator blasting network is simple, a buckle only needs to block onto a connecting wire, and the whole network adopts a parallel-connecting way, so that operations are simple. The blasting multi-branch networkconnecting method changes a network way of only using the nonel detonators in the conventional blasting way, adopts a composite network way, is small in control errors, and is simple to operate.
Owner:南阳市神威爆破工程有限公司 +2
Method for fast pre-estimating charging stabilization period of double-base propellant
ActiveCN106290233ABypass the manufacturing processOvercome preparationComponent separationChemical analysis using titrationReflection spectroscopyModel sample
A method for fast pre-estimating a charging stabilization period of a double-base propellant comprises: using a thermal accelerated aging method to prepare a No.II centralite effective content near infrared quantitative model modeling sample; collecting spectra through a near infrared diffuse reflection spectrometer and establishing a No.II centralite effective content near infrared quantitative model; establishing a stabilization period pre-estimating equation by using a reliable temperature coefficient r0; tracking and detecting the effective content of a No.II centralite in a single-temperature charging thermal accelerated aging process through a near infrared method; obtaining a critical time used when the effective content reaches a critical criterion; and extrapolating the charging stabilization period of the double-base propellant through the stabilization period pre-estimating equation at the working condition and storage environment temperature. According to the method, the stabilization period is obtained through lossless tracking of effective contents of a charging sample at one temperature at different aging times in a near infrared method, and the sample amount is reduced by 96%. The method is safe and is low in cost.
Owner:XIAN MODERN CHEM RES INST
Diabetes treating Chinese herbal formula and preparation method thereof
InactiveCN108785549AIncrease secretionIncrease the number ofMetabolism disorderEchinodermata material medical ingredientsSide effectMomordica
The invention discloses a diabetes treating Chinese herbal formula and a preparation method thereof. The diabetes treating Chinese herbal formula is composed of momordica charantia extract, tea leaf extract, evening primrose seed oil, sea cucumber extract, purslane, radix ophiopogonis, rhizoma alismatis, hawthorn, fructus rosae laevigatae, common yam rhizome, schisandra chinensis, fructus citri sarcodactyli, rhizoma polygonati and corn stigma. Therefore, the diabetes treating Chinese herbal formula is safe in composition and free from toxic and side effects. During preparation, when fused at aspecific proportion, the diabetes treating Chinese herbal formula can significantly repair pancreas cells and directly activate and induce immune cells to repair dropsical, degenerated and fibrosed pancreas tissues, increase the number and functions of beta cells capable of secreting insulin to insulin secretion and accordingly cure diabetes.
Owner:王丽敏
Rapid prediction method for stable stage of stacked biradical propellant powder
ActiveCN106018333ABypass the manufacturing processLow costMaterial analysis by optical meansAccelerated agingCritical time
The invention relates to a rapid prediction method for the stable stage of stacked biradical propellant powder. The rapid prediction method comprises the following steps: preparing a modeling sample of II-centralite available content near-infrared quantitative model of the biradical propellant powder by virtue of a thermal accelerated ageing method, and establishing the II-centralite available content near-infrared quantitative model by virtue of a near-infrared spectrum and chemometrics; establishing a stable stage prediction equation by virtue of a reliable temperature coefficient r0; and tracking the II-centralite available content in the thermal accelerated ageing process of the stacked biradical propellant powder by virtue of a near-infrared method, so as to obtain consumed critical time that the available content reaches critical criterion, and extrapolating the working condition and the stable stage of the stacked propellant powder under the storage environment temperature by virtue of the stable stage prediction equation. According to the rapid prediction method, the stable stage can be acquired only through the lossless tracking of the available contents of a sample at a temperature and different ageing time periods by virtue of the near-infrared method, the sample amount is reduced by 96%, and the method is safe and low in cost.
Owner:XIAN MODERN CHEM RES INST
Water-based lubricant for enameled wires and preparation method of lubricant
InactiveCN112143554AGuaranteed lubrication effectEvenly dispersedLubricant compositionStatic friction coefficientAqueous solution
The invention discloses a water-based lubricant for an enameled wire and a preparation method of the lubricant. The water-based lubricant is used for external lubrication of the enameled wire. The preparation method comprises the following steps: by taking water as a solvent, adding different types of modifiers and dispersants, and dispersing a wax lubricant in an aqueous solution to obtain a homogeneous solution; The water-based lubricant comprises pure water, wax, a modifier and a dispersing aid. Based on the total weight of the water-based wax, the pure water accounts for 70.0-99.25%, the wax accounts for 0.5-30%, the modifier accounts for 0.2-20.0%, and the dispersing agent accounts for 0.05-10.0%. By using the water-based lubricant prepared by the invention, the enameled wire has an excellent static friction coefficient, and the range of the static friction coefficient is 0.03-0.06.
Owner:ELANTAS ELECTRICAL INSULATION TONGLING
Automobile fuel injection control system and method
ActiveCN102678355BIncrease pressurePrecision injectionElectrical controlMachines/enginesControl systemAssembly line
Owner:UNITED AUTOMOTIVE ELECTRONICS SYST
Steel truss girder assembling, erecting and construction process
ActiveCN103614969BThe construction process steps are simpleSimple and fast operationBridge erection/assemblyButtressSupporting system
Owner:NO 1 ENG LIMITED OF CR20G
Series-parallel flexible ankle joint rehabilitation device
PendingCN111904801AVersatileInstitutional degrees of freedom are not redundantChiropractic devicesEngineeringPhysical therapy
The series-parallel flexible ankle joint rehabilitation device comprises an inward and outward rotation unit, a constraint branch chain, an inward and outward turning unit, a dorsal and plantar flexion unit and a movable platform unit. A bearing platform, a left supporting connecting rod, a right supporting connecting rod, an arc-shaped connecting rod and a Y-direction supporting shaft are arranged in the constraint branch chain, the left supporting connecting rod and the right supporting connecting rod are oppositely fixed to the left end and the right end of the bearing platform, the two ends of the arc-shaped connecting rod are rotationally connected with the top end of the left supporting connecting rod and the top end of the right supporting connecting rod through X-direction rotatingshafts respectively, and the top end of the Y-direction supporting shaft is fixed to the bottom surface of the bearing platform. A base is arranged in the inward and outward rotation unit, and the bearing platform is driven by the Y-direction supporting shaft to rotate in the Y-axis direction relative to the base. A wearable shoe is arranged on the movable platform unit, and the movable platformunit is rotationally connected with the middle of the arc-shaped connecting rod through a Z-direction rotating shaft. The inward and outward turning unit and the dorsal and plantar flexion unit are arranged on the bearing platform, the inward and outward turning unit drives the movable platform unit to rotate in the Z-axis direction, and the dorsal and plantar flexion unit drives the movable platform unit to rotate in the X-axis direction.
Owner:东北大学秦皇岛分校
Cast aluminum alloy solution pouring crucible casing tool
PendingCN111496235AThe crucible is easy to moveEasy castingMelt-holding vesselsStructural engineeringManufacturing engineering
The invention discloses a cast aluminum alloy solution pouring crucible casing tool which comprises a crucible protecting sleeve, wherein arc-shaped openings are separately formed in the front and back sides of the upper end of the crucible protecting sleeve, pouring pull rings are separately arranged on the front and back sides of the lower end of the crucible protecting sleeve, connecting blocksare separately arranged on the left and right sides of the upper end of the crucible protecting sleeve, rotating rods are vertically and movably arranged in the connecting blocks on two sides, separately, limiting blocks are connected to the upper ends of the rotating rods, fixed bars are movably arranged in the connecting blocks and the rotating rods, and fixed nuts are arranged on the back sides of the connecting blocks. Lifting lugs are separately arranged on opposite outer sides of the two connecting blocks, and the lifting lugs or the pouring pull rings are movably connected to connecting rods through spring buckles. The cast aluminum alloy solution pouring crucible casing tool has the beneficial effects that it is convenient to move and pour a crucible, the crucible can be insulatedand kept in temperature, high-temperature thermal injury to an operator is avoided, the cooling speed of the aluminum alloy solution in the crucible is reduced, the number of times of putting the crucible and taking out the crucible is reduced and meanwhile, the danger coefficient of the operator is small and the cast aluminum alloy solution pouring crucible casing tool is safe and reliable to use.
Owner:QIANNAN NORMAL UNIV FOR NATTIES
Paper cutting device capable of automatically adjusting tension and automatically guiding paper
ActiveCN102806572ANo excessive tensionNo small problemsMetal working apparatusAutomatic controlElectric machinery
The invention provides a paper cutting device capable of automatically adjusting tension and automatically guiding paper, which comprises a paper-guiding structure and a paper-cutting structure, wherein the paper-guiding structure comprises a paper storing frame, a motor and a pulling roller; a paper scroll is stored in the paper storing frame; the pulling roller is driven to rotate by the motor; the paper scroll is driven to unfold by the pulling roller; an automatic controller for automatically adjusting the dragging tension of the paper scroll is arranged on the paper-guiding structure; the paper-cutting structure comprises a cutter, a pressing roller, a paper loader, a monitor and a controller; the cutter is used for cutting a dragging paper surface; the pressing roller is adhered to the paper surface; the monitor is used for monitoring the state of the paper scroll; and the controller is used for controlling the cutter, the pressing roller and the paper loader to act. The automatic controller is adopted by the paper cutting device, so that the dragging tension of the paper sheet is on-line adjusted in real time and the paper sheet is free from the ultrahigh or ultralow tension problem during a dragging process; the monitor and the controller are also adopted by the paper cutting device, so that the paper scroll is conveniently and automatically exchanged; and the paper cutting device has the advantages that the degree of automation is high, the production efficiency is greatly increased, the production quality is greatly increased through the automatic control and the product has a higher market competitiveness.
Owner:HUAINAN BEIXIN BUILDING MATERIAL
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