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690 results about "Working life" patented technology

Method of managing fails in a non-volatile memory device and relative memory device

A method of managing fails in a non-volatile memory device including an array of cells grouped in blocks of data storage cells includes defining in the array a first subset of user addressable blocks of cells, and a second subset of redundancy blocks of cells. Each block including at least one failed cell in the first subset is located during a test on wafer of the non-volatile memory device. Each block is marked as bad, and a bad block address table of respective codes is stored in a non-volatile memory buffer. At power-on, the bad block address table is copied from the non-volatile memory buffer to the random access memory. A block of memory cells of the first subset is verified as bad by looking up the bad block address table, and if a block is bad, then remapping access to a corresponding block of redundancy cells. A third subset of non-user addressable blocks of cells is defined in the array for storing the bad block address table of respective codes in an addressable page of cells of a block of the third subset. Each page of the third subset is associated to a corresponding redundancy block. If during the working life of the memory device a block of cells previously judged good in a test phase becomes failed, each block is marked as bad and the stored table in the random access memory is updated.
Owner:MICRON TECH INC

Multifunctional implanted gastrointestinal electrical stimulation system

The invention provides a multifunctional implanted gastrointestinal electrical stimulation system in the technical field of medical apparatus and instruments. The system comprises an in-vivo implantation device and an in-vitro control device and has the functions of multichannel gastrointestinal electrical stimulation signal generation, in-vivo gastrointestinal track pressure detection, in-vivo gastrointestinal electrical detection and in-vitro wireless charging, wherein the in-vivo implantation device comprises an energy receiving coil, an implanted electrical stimulator, a stimulating electrode, a detection electrode and a minitype pressure sensor. According to the invention, the setting and regulation of electrical stimulation parameters and transmission of various control commands can be flexibly achieved through the wireless communication between the in-vitro control device and the in-vivo implantation device, and the in-vivo implantation device can transmit the in-vivo gastrointestinal track pressure and the gastrointestinal electrical detection result to the in-vitro control device in real time for receiving and storage. By using the system, the working life of a device can be greatly prolonged without frequently changing a battery when operation is carried out; and the limitation of the millisecond-stage impulse in the existing gastrointestinal stimulator is broken through, the intestinal pressure and intestinal electrical measurement accuracy can be improved, and convenience is provided for detecting or researching the effect of the gastrointestinal electric stimulation.
Owner:SHANGHAI JIAO TONG UNIV

Waterproof-level soy protein adhesive and preparation method thereof

The invention provides a waterproof-level soy protein adhesive and a preparation method thereof and relates to an adhesive and a preparation method thereof, in particular to a modified soyabean protein adhesive for waterproof-level plywood. The waterproof-level soy protein adhesive aims at solving the technical problem that an existing adhesive for plywood is not waterproof. The preparation method comprises the steps of beam flour acid heat treatment, beam flour liquidation, polyamide solution synthesis and adhesive modulation. Degreased beam flour or soya bean meal left after soybean oil expelling is used as a main raw material, the water resisting property of the beam flour and the solid content of the soy protein adhesive are improved through acid heat treatment, the cross-linking efficiency, cementing effect and process usability of the soy protein adhesive are improved through liquidation, the water resisting property of the soy protein adhesive is improved through cross-linking of polyamide polyamine resin, and finally the soy protein adhesive high in beam flour content, low in viscosity, long in working life and good in water resisting property and used for the waterproof-level plywood is prepared. The waterproof-level soy protein adhesive and the preparation method belong to the field of adhesive preparation.
Owner:浙江蓝歌新材料科技有限公司

Waterborne ultraviolet-heat dual curing coating composite and preparation method thereof

The invention provides a water-dilutable ultraviolet-thermal double curing coating composition and a preparation method thereof. The components of the double curing coating composition in percentage by weight are: 3.5 to 60 percent of water-dilutable urethane acrylate oligomer, 17 to 47 percent of water-dilutable polyurethane polylol, 20 to 49 percent of water-dilutable curing agent, 0.4 to 9 percent of light trigger and 0.4 to 1.6 percent of auxiliary agent. The preparation method for the double curing coating is simple and does not require complex equipment; and the working life of the coating is long and reaches as long as 9 hours; the coating obtained can be used for preparing a coating by the functional methods of spray coating, brush coating and roller coating; ultraviolet curing can be completed within a short period of time between 10 and 30 seconds, and thermal curing can be completed within a period of time between 1 and 3 minutes at a temperature of between 40 and 60 DEG C; a paint film obtained after double curing has good leveling property, flexibility, shock resistance and adhesion and high hardness; and the coating does not contain an organic solvent and a reactive diluent, and is an environment-friendly coating.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Ant colony algorithm-based high-energy efficiency wireless sensor network routing method

Disclosed in the invention is an ant colony algorithm-based high-energy efficiency wireless sensor network routing method. The method comprises three parts: cluster establishment, transmission in cluster, and transmission between clusters. When a multi-hop relay node is selected, a heuristic ant colony intelligent algorithm is employed to search a multi-hop transmission route; and during the searching process, an expectation importance influence is eliminated and a probability for node selection is completely decided by the link pheromone concentration. And when a local link pheromone is updated, a dump energy minimum value of a collaboration zone node is multiplied by link pheromone increasing degree Q and then the result is divided by transmission energy consumption, thereby completing updating. According to the new pheromone updating method, the dump energy and the transmission energy consumption of the node are scaled appropriately and then are introduced to the link pheromone updating; and when the dump energy of the collaboration zone node at the next hop is increased and the transmission energy consumption is reduced, the node can be selected. Therefore, when the routing method is used, total energy consumption of the network can be reduced; the dump energy of the network nodes can be balanced; and the working life of the network can be prolonged.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Intelligence control tunnel LED illuminating system and use thereof

The invention discloses an illumination system of an intelligent controlled LED tunnel lamp and the application thereof, which comprises a power supply and distribution device, a group of structure including a plurality of LED tunnel lamps that consist of tunnel lamp burners, direct current drive working power and control units. A sensing signal recognition processor added with a temperature sensor is arranged in each control unit of the LED tunnel lamps in the invention; the front end of the sensing signal recognition processor is successively connected with a sensor signal converting processor and a vehicle detecting sensor through a preposed sensing signal transmission channel in a many-to-one way; signals from the temperature sensor and the vehicle detecting sensor are treated uniformly by the sensing signal recognition processor. The invention can recognize whether vehicles comes from the front of the tunnel so as to control whether the LED tunnel lamps are lightened, and the driving current of the LED tunnel lamp caps or the lightened number of the LED tunnel lamps can be adjusted and controlled according to the detected environment temperature in the tunnel without reducing the brightness of the tunnel lamps, thus realizing the power saving and prolonging the working life of the tunnel lamps.
Owner:SHANGHAI SANSI ELECTRONICS ENG +2

Kisspoint self-adaptation control method and system for peristaltic working condition

The invention discloses a kisspoint self-adaptation control method and system for a peristaltic working condition. The method comprises the steps that a current whole vehicle driving condition is obtained; when the current whole vehicle driving condition is the peristaltic working condition, a current engine static torque value is obtained; whether a difference value between the current engine static torque value and a target engine static torque value is larger than a given threshold value or not is judged, if yes, pressure self-adaption learning is conducted on a current clutch, and kisspoint pressure compensation values of all clutches are obtained; pressure of all the clutches is adjusted according to the kisspoint pressure compensation values of all the clutches. According to the kisspoint self-adaptation control method, the kisspoint self-adaptation control system under the peristaltic working condition is additionally arranged, the problems that due to the fact that a kisspoint is improperly selected, the phenomena of impacts on a vehicle, serious clutch slipping and engine flameout are caused under the peristaltic working condition are solved, the driving comfort of the whole vehicle is enhanced, and the working life of the clutches is prolonged.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Two-stage temperature control system for semiconductor laser

The present invention discloses a two-stage temperature control system for a semiconductor laser. The two-stage temperature control system for the semiconductor laser comprises a first stage temperature control subsystem, a second stage temperature control subsystem, a temperature display subsystem and a power supply subsystem. The first stage temperature control subsystem acts on a semiconductor laser diode (LD) and employs an analog PID control mode; and a negative temperature coefficient thermistor (NTC) is selected as a thermometric element, and a semiconductor cooler (TEC) is selected as an actuator. The second temperature control subsystem is configured to control the temperature of the whole temperature control system and maintain a stable operating ambient temperature of a circuit; and the second temperature control subsystem employs digital PID and PWM control algorithms, the NTC is selected as a thermometric element, and the TEC and a cooling fan are selected as the actuator. The temperature display subsystem is configured to display setting temperature and real actual temperature of the first stage temperature control subsystem and the second stage temperature control subsystem. The power supply subsystem is configured to provide a power supply required by the operation of the circuit. Through the adoption of two-time temperature control, the influence of element temperature drift on the control accuracy is decreased, the control accuracy is improved, the working life of the system may be prolonged, and the long-time stability of the system is improved.
Owner:BEIHANG UNIV

Plasma air sterilizing and purifying device for air-conditioned train

The invention relates to a plasma air sterilizing and purifying device for an air-conditioned train, which comprises a plasma reactor, a pulse power source, a fan component, an air inlet, an air outlet and a shell and is characterized in that a positive electrode which is formed by arranging a plurality of nickel-chromium metal wires or nickel-chromium metal bands in the same plane at equal intervals in parallel is arranged in the plasma reactor; the positive electrode is arranged in the middle position of two adjacent negative electrodes; the two ends of the positive electrode are fixed in a groove or a convex part corresponding to a conductor rail for preventing micro-discharge; each negative electrode is made of an aluminum plate the surface of which is oxidized, and nano-TiO2 is respectively laid on the two surfaces of each negative electrode; and a pulse transformer and a pulse generator are arranged in the pulse power source and are arranged according to a single-ended flyback inverter. The device of the invention is arranged at the return air inlet or the air outlet of an air conditioner in a carriage, and the existing facilities of the air-conditioned train do not need to be changed. The device of the invention is the optimal combination of plasma and TiO2, has high dynamic sterilization and purification efficiency of a passenger train, and has the advantages of energy saving, good reliability, long working life, simple structure and convenient installation.
Owner:ZHEJIANG TIANQING ENVIRONMENTAL PROTECTION TECH CO LTD

Quick-drying room temperature curing waterborne epoxy resin curing agent and preparation method thereof

The invention relates to the technical field of chemical paints and particularly discloses a quick-drying room temperature curing waterborne epoxy resin curing agent and a preparation method thereof. The method comprises the following steps: mixing liquid epoxy resins, polyether containing epoxy groups on both ends or the mixture of polyether containing epoxy groups on one end and polyether containing epoxy groups on both ends with a bisphenol compound to react at 150-200 DEG C under the action of a catalyst and generate an intermediate, then using the intermediate and amine to react, performing reduced pressure distillation to remove excess amine and the solvent, cooling the obtained resins to 60-90 DEG C, and dropwise adding deionized water to obtain the amber or light yellow quick-drying room temperature curing waterborne epoxy resin curing agent. The waterborne epoxy resin curing agent has simple production process flow, the surface drying time for curing the epoxy resin emulsion is shorter, and the working life is longer; and the epoxy resin film cured by using the curing agent has excellent performance. The waterborne epoxy resin curing agent is suitable for waterborne paints, waterborne adhesives and the like; and for example, the curing agent can be used as a flooring paint, an industrial protective paint and a furniture adhesive.
Owner:HUNAN UNIV

Production method for holographic hot stamping film

The invention provides a production method for a holographic hot stamping film. An anti-counterfeiting work plate is formed for silver spraying and electroforming operations of a photoetching offset plate etched with a holographic pattern; a positron emission tomography (PET) thin film is coated with a mold releasing agent to form a mold releasing layer; the mold releasing layer is coated with a resin solution mixed with toner to form a toner layer; the holographic pattern on the anti-counterfeiting work plate is die stamped on the toner layer of the PET thin film; metal aluminum is plated on the toner layer, and a aluminum-plated layer is coated with glue to form a glue layer; and finally, the PET thin film is divided, cut and packed. According to the hot stamping film produced through the production method not only exquisite in pattern, but also high in anti-counterfeiting degree and difficult to counterfeit; a used hot stamping film can not be reused. The photoetching offset plate sprayed with silver is even in thickness and high in strength, so that the rate of finished products of photoetching offset plates is increased by a large margin, and accordingly the quality of the anti-counterfeiting work plate and the hot stamping film is improved; meanwhile, the raw material consumption can be reduced, and the production cycle for making the anti-counterfeiting work plate is shortened. The electroformed anti-counterfeiting work plate has good strength, hardness and malleability resistance; the working life is pronged by near one time.
Owner:JIANGSU XINGGUANG PACKAGING SCI & TECH CO LTD
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