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803results about How to "Wide range of use" patented technology

Built-up synergetic class-A/B water extinguishing agent series

The invention discloses a built-up synergetic class-A / B water extinguishing agent series. Class-A fires caused by solid substances (such as woods, cottons, wools, linens, paper) and products thereof and class-B fires caused by liquid or melted solids such as gasoline, kerosene, diesel oil, crude oil, methanol, ethanol, asphalt, paraffin waxes and the like can be put out rapidly through the functions such as heat absorption and cooling, diluting and smothering, insulating and covering, suppressing and blocking combustion chains, and the like which are synergetically performed by various extinguishing functional components, and a high-temperature-resistant thermal-insulation and fire-retarding covering layer is formed on the surface of an inflammable matter by various after-combustion functional components so as to achieve the effect of after-combustion resistance. Because the class A / B fires relate to multiple occasions of daily life and production activities, the extinguishing agent disclosed by the invention can be used in the fields of home fire prevention and extinguishing, urban architecture fire prevention and extinguishing, oil depot and gasoline station fire prevention and extinguishing, vehicle and ship fire prevention and extinguishing, forest and grassland fire prevention and extinguishing, mine fire prevention and extinguishing, confined spaces (such as civil air-defense architectures) fire prevention and extinguishing.
Owner:NANJING UNIV OF SCI & TECH

Short duration variable amplitude high voltage pulse generator

An improved electrical pulse generator incorporating MOSFET components, a programmable high voltage power supply, and a shaping network for generating short duration signals having narrow pulse widths and short rise times.
Owner:WIENER SCOTT ALBERT +1

Modified rubber composition and preparation method thereof

The invention provides a rubber composition and a preparation method thereof. The rubber composition comprises the following components according to parts by weight: 100 parts of rubber and 40 to150 parts of composite powder; the composite powder includes inorganic nanoparticles and rubber particles; the method for preparing the composite powder comprises the following steps of evenly mixing the irradiated synthetic rubber latex and the serosity of the inorganic nanoparticles to obtain the mixed latex, and then drying the mixed latex; the weight ratio between the rubber particles and the inorganic nanoparticles is 70:30 to 30:70; the composite powder has good rubber reinforcement effect to rubber, and the unmodified inorganic nanoparticles in the composite powder can be evenly dispersed in the rubber; and meanwhile, the method for preparing the rubber composition is simple in process, easy to operate, low in cost, wide in application range and feasible for industrialization.
Owner:CHINA PETROLEUM & CHEM CORP +1

Floating barrel duckbilled lotus root digging machine

The invention discloses a floating barrel duckbilled lotus root digging machine, which comprises a chassis frame (14), a power water pump room (9), a pump fixing frame (10), a water inlet pipe (7), a high-pressure tube (8) and a high-pressure nozzle (3), and is characterized in that: the lotus root digging machine is provided with left and right sealed floating barrels (1); a working bin (11) is arranged between the left and right sealed floating barrels (1); bottom, front-back and top filtering nets (2, 4 and 16) are welded outside the working bin (11) and between the left and right sealed floating barrels (1); and the chassis frame (14) is welded with the left and right sealed floating barrels (1), the working bin (11), the pump fixing frame (10), an operating frame (6) and a lifting lever (15) into a whole. The lotus root digging machine is novel in structure, light and flexible in complete machine, low in manufacturing cost, easy to operate, high in efficiency, low in fault rate, easy to maintain, convenient to transfer and wide in application.
Owner:武汉兴盛农机技术开发有限公司

Method for preparing dietary fiber via mechanical activation and enzymolysis by taking bean dregs as raw material

The invention discloses a method for preparing dietary fiber via mechanical activation and enzymolysis by taking bean dregs as a raw material. An all-natural full water-soluble dietary fiber product is prepared through the following steps: the pretreatment of bean dregs, coarse grinding, mechanical activation, enzymolysis and the dryness of enzymolysis slurry. The invention has the following advantages: 1. the method provided by the invention has the characteristics of short process flow, high resource utilization ratio, low energy consumption and minimum three wastes; the consumption amount of enzyme in the enzymolysis process is greatly reduced so as to lower the production cost, and mechanical activation is adopted without adding other chemical substances, so that the product is all-natural dietary fiber and has good quality; in addition, the content of water-soluble dietary fiber is high and can reach above 17.20%, so that the method is conveniently and directly used for producing dietary fibre tablet products; and 2. the enzyme used in the method provided by the invention not only can be cellulose but also can be pectinase or xylanase. According to the invention, production arrangement can be carried out conveniently, and the production flow is simplified.
Owner:GUANGXI UNIV

Intelligent electronic lock

The invention provides an intelligent electronic lock. The lock comprises a lock cylinder, a lock bulb, a key, a control unit, a power supply, a key switch and an electric control billiard, wherein a mechanical billiard is arranged in a lockhole of the lock cylinder; the lock bulb is provided with a key hole; the control unit is connected with a key code reading module and a storage module; the electric control billiard is arranged in the lockhole of the lock cylinder; a groove is reserved on the lateral surface of the lock bulb; a digital chip is arranged in the key; and when the key is inserted into the lockhole and the control unit is electrified, the key can unlock the lock normally if codes are the same, and the key cannot unlock the lock if information of codes is different. The lock combines the advantages of a mechanical lock structure and an electronic structure, can ensure low electricity consumption working of the electronic lock by adopting an electrifying mode, can use batteries to supply electricity, and can ensure service life. Therefore, the lock has wide application range, and can be arranged in various houses, buildings and household places conveniently to replace conventional locks. Users can use the lock conveniently without changing existing habits.
Owner:ZHUHAI WEIMA TECH CO LTD

Image inkjet printing method and device

The invention discloses an image inkjet printing method and device. The printing device comprises a printing control unit, and the printing control unit controls nozzles to print. The image inkjet printing device is characterized in that the device further comprises a transparent pattern processing unit, the transparent pattern processing unit provides any transparent pattern library which allows a user to select, transparent patterns selected by the user are added to an image to be printed, then the transparent patterns are output to the printing control unit to be printed, the printing control unit controls color ink nozzles to jet the image to be printed, and controls at least one transparent ink nozzle to jet the transparent patterns, and thus the printed patterns have the effects of the sense of depth, the sense of stereoscopic touch or light and the like. According to the image inkjet printing method and device, different transparent patterns can be selected according to needs, the image to be printed of any specification can be completely filled with the transparent patterns, an operation interface color selection channel can be previewed, the function is complete, and operability is high.
Owner:BEIJING MEIKEYI

Wireless network access method and wireless network access device

The invention discloses a wireless network access method and a wireless network access device. The method comprises the following steps of: building a wireless connection with a preset intelligent device waiting for accessing a preset wireless network; through the wireless connection, transmitting a received ID of a wireless router for accessing the wireless network to the intelligent device; and by the wireless connection, forwarding a received instruction for accessing to the wireless network to the intelligent device so as to enable the intelligent device to access the wireless network through the wireless router. The invention provides a technical scheme for assisting the intelligent device without an input interface to access the wireless network, facilitates access operation of the intelligent device, and makes range of application of the intelligent device wider.
Owner:XIAOMI INC

Automobile pedal device and retractor device thereof

The invention discloses an automobile pedal device and a retractor device thereof. The retractor device of the automobile pedal device comprises an installing support, a pedal support, a first arm, a second arm, a third arm and a fourth arm. The first end of the first arm is connected with the installing support in a pivotal mode, and the second end of the first arm is connected with the pedal support in a pivotal mode. The first end of the second arm is connected with the installing support in a pivotal mode. The first end of the third arm is connected with the second end of the second arm in a pivotal mode, and the second arm of the third arm is connected with the pedal support in a pivotal mode. The first end of the fourth arm is connected with the second end of the second arm and the first end of the third arm in a pivotal mode, and the second end of the fourth arm is connected with the first arm in a pivotal mode. The retractor device of the automobile pedal device has the advantages of being large in stroke, wide in application range, good in rigidity, high in strength, more stable in running, long in service life and the like.
Owner:HANGZHOU TIANMING TECH CO LTD

Display apparatus

A display apparatus is provided which, when projecting a video onto a curved surface of an object for display, can realize an undistorted display of the video. The measuring means outputs the distance information representing the distance to the object. Based on the distance information produced by the measuring means, the curved surface contour is detected with high precision. According to at least the detected curved surface contour distortions, pixels of the display image are unevenly rearranged to correct the video information before it is output. This arrangement realizes an undistorted display of video when the video is projected onto the curved surface of the object.
Owner:MARVELL INT LTD +1

Biomimetic crop picking robot

A biominetic crop picking robot comprises picking pipes based on pneumatic artificial muscle, a generator used for feeding air pressure into inner cavities of the picking pipes, pneumatic pressure rate control valves used for controlling the air pressure fed into the inner cavity of each picking pipe, a pressure sensor used for detecting air pressure fed into the inner cavity of each picking pipe, a pneumatic pressure rate controller used for coordinating and controlling each pneumatic pressure rate control valve, a pulse type vacuum generation module used for sucking picked objects, a picking control subsystem used for controlling and performing picking action, a container used for collecting the picked objects, a microprocessor used for intelligently analyzing a video, autonomously navigating and controlling the action of the picking pipes based on the pneumatic artificial muscle and a walking part used for the work of a picking robot in a picking crop area. The biominetic crop picking robot has the advantages of excellent natural flexibility, simple mechanism, low control complexity, high picking efficiency, excellent environmental adaptability, and low manufacturing and maintenance costs.
Owner:ZHEJIANG UNIV OF TECH

Inorganic corrosion-proof fire-resistant abrasive-proof nano cementing agent

The invention discloses an inorganic nanocementing agent, which is characterized by corrosion prevention, fire- proof, wearing resistant, acid-resistant and alkali reisistant. It takes silicasol and potassium metasilicate as raw material, and produced by adding a little amount of organic raw material or inorganic raw material, and the comprised raw material and their proportion by weight are as follows: nanocolloidal silica 10 -15, potassium metasilicate 20- 30, polyvinyl alcohol 1- 5, nano titanium dioxide 3- 6, titanium dioxide titanium dioxide 7- 12, calcining porcelain clay 2- 6, porcelain clay 2- 6, silicon zirconite powder 10- 14, barium sulfate powder and water 8- 15; or as that: nanocolloidal silica 10 -15, potassium metasilicate 20- 30, polyvinyl alcohol 1- 5, mica titanium 20- 30, nano zinc oxide 7- 12, high-alumina powder 2- 6, charring silicon 10- 18, barite powder 8- 16, and clean water 8- 15. The product will not deform at 1200 Deg. C, it can form permeating high- rigidity compact coating on metal surface, and there is no permission, cracking and separation when the gelatin is heated to 300- 500 Deg. C for several hours and for more than fives times of shock cooling and heating.
Owner:陈东阜 +1

Modularized multifunctional rehabilitation training device

The invention discloses a modularized multifunctional rehabilitation training device which comprises a machine frame, ropes, drive units, adjustment and positioning units, a reversing and tensioning unit, tension sensors, tail end fixing units and an optimization unit. The drive units are fixed to a bottom plate. The ropes are connected with the tension sensors through the adjustment and positioning units. The tension sensors are arranged on the tail end fixing units. By means of the modularized multifunctional rehabilitation training device, the labor intensity of therapists can be lowered, and rehabilitation training, in all directions, of upper limbs and lower limbs can be provided according to situations of patients at different rehabilitation stages.
Owner:XIDIAN UNIV

Deep hole inner wall strain gauge adhering tool for steel rolling sensor

ActiveCN103527588AThe placement of the patch is accurateWide range of useFastening meansBall valveStrain gauge
The invention discloses a deep hole inner wall strain gauge adhering tool for a steel rolling sensor. The deep hole inner wall strain gauge adhering tool for the steel rolling sensor comprises a pipe body and a locating base. The locating base is provided with a ball valve, and a gas connector is arranged at the outer end of the locating base. A plurality of exhaust holes are formed in the side wall of the pipe body, the outer side of the pipe body is sleeved with a silicon rubber sleeve, and the two ends of the silicon rubber sleeve are connected with the outer sides of the two ends of the pipe body in a sealing mode. A silicon rubber inner sleeve is arranged between the inner side of the silicon rubber sleeve and the outer side of the pipe body. A plurality of annular grooves are formed in the outer side surface of the pipe body at intervals in the axial direction, and a plurality of hoop rings are arranged on the outer side surface of the silicon rubber inner sleeve. Accordingly, the deep hole inner wall strain gauge adhering tool for the steel rolling sensor has the advantages that a strain gauge can adhere to the deep hole inner wall accurately, the adhering position is accurate, the strain gauge can be separated from the tool conveniently after adhesion, the pressure on the strain gauge acts on the strain gauge stably and continuously in the adhering process and can be adjusted conveniently, and the strain gauge can adhere to the deep hole inner wall firmly.
Owner:YUYAO TONGYONG METER

Phosphorus-free degreasing powder, production process and phosphorus-free degreasing process thereof

The present invention relates to phosphorus-free degreasing powder. The phosphorus-free degreasing powder comprises, by mass, 2-20% of a surfactant, 10-40% of sodium hydroxide, 2-15% of a complexing agent A92R, 2-15% of a washing assistant SoKalan CP5, 10-30% of sodium carbonate, and 5-25% of sodium sulfate. The phosphorus-free degreasing liquid prepared by the phosphorus-free degreasing powder of the present invention does not contain phosphorus, and has characteristics of environment-friendly property, good cleaning effect, wide application range, and long service life, and the generated wastewater is easy to treat.
Owner:东莞市宝中实业发展有限公司

Long-range power cable insulation online monitoring method based on resistive current separation process

InactiveCN106771869AThe measurement result is correct and validWide range of useTesting dielectric strengthFault locationCapacitive currentSeparation process
The invention discloses a long-range power cable insulation online monitoring method based on resistive current separation process, comprising: mounting a current transformer and a voltage transformer at the front and rear ends of each phase of a three-phase power cable respectively; acquiring leak current passing through this phase of the power cable main insulation according to a difference between the measured front current value and rear current value of the phase, and determining a reference voltage of this phase according to half of a phase sum of the measured front voltage and rear voltage of the phase; calculating equivalent impedance value of this phase of the power cable insulation according to the reference voltage of this phase and the leak current passing through the phase of the power cable main insulation, in order to further calculate resistive current and capacitive current values of each phase of the power cable, so that the resistive current can be isolated from the leak current from cable insulation. Online monitoring for long-range power cable insulation is achieved through the resistive current flowing through the cable insulation.
Owner:HARBIN UNIV OF SCI & TECH

Method for manufacturing radio frequency tags with hot and cold stamping technology

The invention discloses a manufacturing method of radio frequency tags, and the radio frequency tags are manufactured with a hot and cold stamping technology; the process method has the steps that: polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), paper, plastics and the like are adopted as base materials, and electro-metal stamping foils are stamped on the base materials by a stamping machine through a hot stamping or cold stamping technology, then waste is discharged from other parts of the metal foils, and antenna patterns are obtained; and if coil antennas are to be manufactured, insulation layers need to be paved on coils, the electro-metal stamping foils are stamped on the insulation layers and are connected with the ends of the antennas to form bridges, i.e. radio frequency antennas. Finally, chips are reversely pasted on the antenna bridges, coated and packaged, and radio frequency tags are obtained. A traditional radio frequency tag process has the disadvantages of too high cost, complicated process, long production time, certain pollution to the environment and the like, and the method for manufacturing radio frequency tags with the hot and cold stamping technology can effectively reduce the radio frequency tag manufacturing cost, simplify the complicated process, and meet the market demand for the low-cost radio frequency tags.
Owner:哈尔滨大东方新材料科技股份有限公司

Application engine design method of multi-tenant version management on the basis of cloud server

The invention discloses an application engine design method of multi-tenant version management on the basis of a cloud server. In the method, open source CloudFoundry is used as a basic operation environment, a CloudFoundry open source Paas cloud platform is adopted, and a corresponding code package on cloud storage is uploaded and published to CloudFoundry. A shared database and shared data architecture are adopted to realize multi-tenant management, service including SVN (Subversion) resource automatic distribution, code management and the like on the basis of a SVN version control system is provided to finish an automatic construction process from item establishment to item packaging, and application engine monitoring and multi-version management functions are provided so as to realize the uniform storage and management of the code package. The application engine design method provides a multi-tenant application operation and isolation mechanism, and has the mechanisms including the deployment, the upgrade, the automatic online mechanism, tracking, monitoring and the like of the full life circle of the application.
Owner:INSPUR SOFTWARE CO LTD

Tremella fuciformis strain and application thereof

The invention discloses a tremella fuciformis spore strain HX5-1 capable of producing tremella polysaccharide in high yield. The tremella fuciformis spore strain HX5-1 is preserved in CCTCC (China Center for Type Culture Collection), and the preservation number is CCTCC M 2017271. The invention also provides a method for producing polymer tremella polysaccharide by utilizing the tremella fuciformis spore strain HX5-1 trough fermentation. A tremella polysaccharide product is obtained by adopting the steps of seed solution preparation, three-stage aerated fermentation, alcohol precipitation, decoloration, deproteinization, refining, drying and the like. According to the method provided by the invention, through the three-stage aerated fermentation, the yield of the tremella polysaccharide can be up to 18 g / L; the tremella polysaccharide product is obtained through purifying and refining, the total saccharide content is greater than 80 percent, the molecular weight is greater than 1500 KDa, the protein content is smaller than 0.5 percent, the polysaccharide content is high, the molecular weight is high, and a wide application prospect in tremella fuciformis industrial production is obtained.
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD +1

Production process of enameled rectangular wire and forming mechanism of enameled rectangular wire

The invention discloses production process of an enameled rectangular wire and a forming mechanism of the enameled rectangular wire. Annealing treatment, paint coating, baking, cooling and lubrication are sequentially carried out on a wire drawing circular aluminum wire to obtain a finished enameled wire, the enameled rectangular wire needs to undergo multiple working procedures, a finished enameled circular is squeezed and formed by an enameled forming mechanism and then the enameled rectangular wire is obtained. Accordingly, the enameled circular wire and the enameled rectangular wire can share the same device when manufactured, generality is high, the use range is wide, operation is easy and convenient, production efficiency is effectively improved, wrong operation in an original mold replacement process can be avoided, and quality and effects of the enameled wires are guaranteed.
Owner:GUANGDONG WEIQI ELECTRIC MATERIAL

Multi-layer wood composite flooring and manufacturing method therefor

The invention discloses a multi-layer solid wooden compound floor board, which comprises from up to down an anti-wear layer, a decoration layer and a baseboard layer that are mutually glued. The baseboard layer comprises a plurality of mutually-glued single boards. The invention additionally discloses the method for making the floor board. The method comprises: selecting a plurality layers of single boards, coating glue on them, pressing the single boards to form the baseboard layer; coating glue between the baseboard layer and the decoration layer; pressing the decoration layer and the baseboard layer; sticking the anti-wear layer on the decoration layer; finally pressing the anti-wear layer, decoration layer and the baseboard layer to form a multi-layer solid wooden compound floor board. The multi-layer solid wooden compound floor board made by above method is furnished with appearance of a solid wood floorboard, is of steady structure, not liable to deformation, is of high surface strength, is wear and scraping proof, resistant to impact, burning and contamination, and is environmental friendly; the floorboard can be applicable for different environments, is economic, practical and durable.
Owner:捷伟实业有限公司

Novel composite bacterial agent for degrading crop straw

The invention discloses a fungal composite bacterial agent. The fungal composite bacterium agent is prepared by the following steps of: separating and purifying soil and a plant sample to obtain different fungal strains; selecting the fungal strains with high cellulose and ligninolytic enzyme generating capacity from the fungal strains; and optimally combining and proportioning to obtain cladosporium sphaerospermum fungus, auricularia polytricha and champgnon which can effectively degrade the lignin or the cellulose of the straw. The composite bacterial agent is applied to composting of the crop straw and can compost the crop straw in 10 to 15 days without the condition of high temperature.
Owner:HENAN ACAD OF SCI INST OF BIOLOGY LIABILITY

Water-based fire extinguishing additive

InactiveCN106139498ARapid fire extinguishing combustion reactionEnhanced Resurgence ResistanceFire extinguisherWater basedRadar-absorbent material
The invention discloses a water-based fire extinguishing additive, which is composed of a fire extinguishing functional component and an anti-resurgence functional component mixed in proportion, wherein the fire extinguishing functional component consists of a cooling functional component, a covering and isolation functional component, and a dilute suffocation functional component. components, functional components that block the combustion chain and their emulsifiers, and the anti-reburning functional components are composed of nano-insulation fire-resistant flame-retardant materials and their suspension dispersants, water-soluble inorganic flame retardants, radiation-absorbing materials, and film-forming agents , the covering and isolation functional components are composed of foaming surfactants with high foaming properties, fluorine-based surfactants, silicon-based surfactants and foam-stabilizing assistants. It has a very outstanding fire extinguishing effect on fires caused by wood, paper, cotton products, hay, coal, rubber, non-polar liquids (such as gasoline, kerosene, etc.), polar liquids (such as methanol, ethanol, etc.) and chemical raw materials such as magnesium and titanium. .
Owner:陈潜

Method and system for diagnosing vehicle data by using mobile terminal

The invention provides a method for diagnosing vehicle data by using a mobile terminal, which comprises the following steps of: downloading diagnosis software on the mobile terminal; integrating a Bluetooth conversion module to a vehicle-mounted Bluetooth device or integrating a USB (universal serial bus) conversion module to a vehicle-mounted USB device; reading the vehicle data from VMS (velocity-measuring system) through a CAN (controller area network) bus when the mobile terminal is communicated with the vehicle-mounted Bluetooth device through the Bluetooth apparatus thereof or connected to the vehicle-mounted USB device through the USB data line; and converting the format of the read vehicle data through the Bluetooth conversion module or the USB conversion module, then sending the data to the diagnosis software on the mobile terminal. Correspondingly, the invention provides a system for diagnosing vehicle data by using the mobile terminal. The vehicle data can be read to the mobile terminal through the Bluetooth or the USB data line, and can be diagnosed remotely through the diagnosis software on the mobile terminal.
Owner:奇瑞新能源汽车股份有限公司

Mobile phone dialing method and system based on blinking electromyographic signal detection

The invention discloses a mobile phone dialing method and system based on blinking electromyographic signal detection. The method comprises the following steps that 1, the electromyographic signals of a human body are collected through Bluetooth brain electromyographic headphones and are sent to a mobile phone in a Bluetooth mode; 2, data processing is carried out on the received electromyographic signals in the mobile phone to recognize whether a blinking action exists or not; 3, scanning dialing is carried out based on the recognized blinking action. The mobile phone dialing method and system based on the blinking electromyographic signal detection are easy to implement, high in real-time performance, high in accuracy, and capable of efficiently serving disabled people, injured people, the physically disabled and other special people.
Owner:CENT SOUTH UNIV

Centre drive dual-mould disc casting machine and casting method thereof

The invention relates to a centre drive dual-muld disc casting machine, which comprises a chute, casting discs, a quantitative casting system, sprinkling systems, waste anode hoists, lifter and water channel systems, spraying systems, a control cabinet and a hydraulic system; the dual-mold casting discs are fixedly arranged on a concrete foundation; the quantitative casting system is distributed between the dual-mold casting discs; each sprinkling system behind the quantitative casing system is arranged above eight empty molds of each casting disc along the disc rotation direction; each waste anode hoist is arranged at the outer side edge of each casting disc along with each sprinkling system; each lifter and water channel system is arranged at the outer side edge of each casting disc along with each waste anode hoist; and each spraying system is arranged at the outer side edge of each casting disc along with the lifter and water channel system. The centre drive dual-mold disc casting machine can be matched with a rotary metallurgical furnace, a fixed type anode furnace or other melting furnace and is wide in using range, high in automation degree, safe and reliable and strong in casting capability.
Owner:广西有色再生金属有限公司 +1

Automatic answering system and method applied to dialogue scene

ActiveCN109977218ARetrieve knowledge quicklyVarious forms of accessDigital data information retrievalAutomatic exchangesProcess moduleText mode
An automatic answering system and method applied to a dialogue scene belong to the technical field of telephone communication and comprise a client conversation processing module and an AI conversation engine module. The client session processing module is used as an interaction forward adaptation layer, assists the scene dialogue forward content identification and event identification, and comprises a client module and a voice gateway module; and the AI session engine module is used for recording and controlling the current session state and issuing different instructions to the client session processing module in combination with events transmitted by the voice gateway module. According to the present invention, the knowledge retrieval is fast, the access forms are diversified, a voice mode, a text mode or a voice-text mixed mode can be adopted, and other service transfer channels can be expanded. Compared with the conventional intelligent voice access, the method and the system aremore flexible and are wider in application range.
Owner:浙江华坤道威数据科技有限公司

Health-care massage spectacles

The invention provides health-care massage spectacles and belongs to the technical field of machinery. The health-care massage spectacles solve the problem that the existing massage spectacles have only massage effects and can be used only on nonworking time. The health-care massage spectacles comprise spectacle supports and a spectacle frame with spectacle glasses. The spectacle frame is provided with a vibrator and a circuit board for controlling the vibrator to work. The circuit board is electrically connected to an external power supply. A massage layer with massage raised-parts is fastened to an inner side of the spectacle frame and a heating member is arranged between the massage layer and the inner side of the spectacle frame. The health-care massage spectacles have a simple structure, can be carried conveniently, can be used on working and leisure time, and has functions of massage and hot compress.
Owner:NINGBO YOUSHIJIA VISION CARE

Flexible spacecraft attitude control method for flywheel saturation and friction characteristics

The invention relates to a flexible spacecraft attitude control method for flywheel saturation and friction characteristics and aims to solve a problem of influence of flywheel saturation and friction characteristics on spacecraft control precision. According to the method, a spacecraft coupling kinetic equation containing flywheel saturation and friction characteristics is firstly constructed; secondly, a friction interference estimator according to flywheel friction characteristics is established; thirdly, a flexible vibration observer is designed according to interference caused by flexible accessory vibration; fourthly, an anti-saturation controller is designed for inhibition according to friction interference estimation errors and flexible vibration interference observation errors; and lastly, through solving control gain of the anti-saturation controller, the friction interference estimator and the flexible vibration observer, a composite layered anti-interference controller is designed, and spacecraft anti-interference attitude control under the action of multi-source interference influence is accomplished. The method is advantaged in that attitude control precision of spacecrafts employing a flywheel execution mechanism can be remarkably improved, and the method can be applied to high precision attitude control on spacecrafts such as high precision earth observation satellites in the aerospace field and space telescopes.
Owner:BEIHANG UNIV

Mining large electromotor coupler dismounting device

The invention discloses a mining large electromotor coupler dismounting device, relating to an underground maintenance equipment of coal mines. The device comprises a bracket, a hydraulic cylinder 4 and snap-gauges 6, wherein the bracket comprises an installing plate1 and stud bolts; the installing plate1 is provided with four circle holes; four stud bolts 3 are arranged; one end of each stud bolt is inserted into the round hole of the installing plate 1 and is fixed by a regulation nut 2; two snap-gauges 6 are provided; the inner sides of the snap-gauges 6 are provided with arc-shaped grooves 6-1; the other ends of the stud bolts are inserted in the snap-gauges 6 and are fixed by the regulation nut 2; and the body of the hydraulic cylinder 4 is vertically fixed on the inner side of the installing plate1. When the mining large electromotor coupler dismounting device is used, a piston 4-1 passes through the middle drainage hole of a coupler 5; the end part of the piston 4-1 contacts with the end part of a motor shaft 7-1; the hydraulic cylinder 4 is started, the snap-gauges 6 eject out the coupler 5 to cause the coupler 5 to be separated from the motor shaft 7-1; and the large electromotor coupler can be disassembled and is convenient and quick, and time and labor are saved.
Owner:CHINA COAL FIRST CONSTR
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