690 results about "Working life" patented technology

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.

The invention relates to a shifting register, a grid electrode integrated driving circuit and a display device. The shifting register comprises an input module, a first resetting module, an output module, a first pulling-down control module and a second pulling-down control module, wherein the input module is used for controlling a potential of a first node to be a first potential; the output module is used for providing a clock signal at a clock signal end to a signal output end; the first resetting module is used for providing a reference signal of a reference signal end to the first node; a first node control signal end and a second node control signal end are used for alternatively inputting a node control signal, so that the first pulling-down control module and the second pulling-down control module work alternatively and a reference signal of the reference signal end is provided for the first node and the signal output end respectively; and the duty ratio of bias voltage of each pulling-down control module is reduced so that the working life of the shifting register is prolonged.

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.

A SMA actuator having rigid members and SMA wires, in which improved temperature control of the SMA wires of the actuator is provided by a heat sink, which may be the rigid members themselves, in close proximity to at least a central portion of the wires. Optionally, the heat sink is sized and placed such that the end portions of the wires where they are attached to the rigid members are not in close proximity to the heat sink. Where the heat sink is external, it optionally has a cooling element that acts passively as a heat sink during the heating cycle of the actuator and that acts as an active cooling element during the cooling cycle of the actuator. An SMA actuator having a desired contraction limit and a power supply circuit has a switch in the power supply circuit that is normally closed when the actuator is contracted to less than the desired contraction limit and is opened by the actuator reaching the desired contraction limit. This improved temperature control provides greater cooling of the SMA wires for a faster response and an extended working life of the actuator.

The invention discloses a monitoring device and a monitoring method for filter screen life of a purifier. The method comprises the following steps: firstly acquiring current air quality information and current wind speed information through a detection module, and then sending to a center control module, computing the rest working life of the filter screen of the purifier through the center control module according to the current air quality information and the current wind speed information, when the rest working life equals to a life limit threshold value, reminding a user of replacing the filter screen of the purifier. Since the air quality is considered in the computation of the life of the filter screen, the computed life is more close to the actual life of the filter screen. The life of the filter screen is progressively decreased per 10 sec according to the current wind speed and air quality, the life of the filter screen can be more carefully estimated, the estimation error is reduced, the computation precision is promoted, and the client loss is reduced.

A mechanical thinning razor includes a shank, a handle, a blade, a bladeguard, a driving member and a sliding member. When pushing an external surface of the driving member toward a hollow midsection of the shank, the bevel of the driving member forces the sliding member to move longitudinally over a distance that corresponds to a width of exposed segments or non-exposed segments, thereby doubling the working life of the blade.

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.

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.

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.

The invention relates to a fatigue property test device of a 4.2-300K temperature area. The device comprises an electrolyte servo fatigue test machine (1), a mechanical support frame (2), a liquid conveying pipe (3), a liquid container (4), a temperature controller (6), a vacuum Dewar (7) and a liquid evaporator (8). The fatigue property test device provided by the invention not only can perform fatigue property data test at the lowest temperature 4.2K/-269 DEG C, but also can realize the fatigue property data test at any temperature point in the temperature range of 4.2-300K/(-269)-27 DEG C by use of low-temperature liquid (liquid nitrogen) and a low-temperature control system; and the device has the advantages of accurate temperature control, simple structure, high reliability, long working life and high efficiency.

The invention belongs to the technical field of transforming an oil-gas field reservoir, aims to overcome the problem that the packer in the prior art easily fails due to a long-term repeated setting under a high-temperature high-pressure environment, and provides a multi-stage draggable water-jet packer tubular column and a technology. The multi-stage draggable water-jet packer tubular column comprises a water-jet gun and the packer, wherein the packer is connected to the lower end of the water-jet gun. The water-jet packer has a simple structure, a jet channel of the water-jet gun and a setting liquid inlet channel of the packer are simultaneously opened during the application of continuous operation of water-jet perforating and fracturing in a manner of throwing a ball to impact a sliding sleeve, the operation is convenient, the packer can be effectively protected, the service life of the packer can be effectively prolonged, and the working life of a nozzle of the water-jet gun can be prolonged to a maximum extent.

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.

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.

The invention relates to a quick-drying hydroxyacrylic resin aqueous dispersion with long working life and a preparation method thereof. Metal ions are chelated in the aqueous dispersion and are used as a catalyst, and in an aqueous phase system, a catalyst component is wrapped by a hydrophobic core layer of the dispersion, but is not contacted with an isocyanate component, so that the activation period is not shortened; in the later stage of construction, moisture is basically evaporated completely, a hydrophobic part inside the dispersion is contacted and fused with the isocyanate component, and the metal catalyst starts to catalyze a reaction of the hydroxyl group and the isocyanate to promote curing of a coating film, so that the aqueous dispersion has the characteristics of long working life and quick drying. When the aqueous dispersion is applied to a waterborne double-component polyurethane coating, the coating film has excellent gloss and fullness, high hardness, good flexibility, excellent water resistance and solvent resistance; the aqueous dispersion can be widely applied to coating of wood furniture and large transporting tools, industrial coating and automobile repairing.

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.

The invention relates to a shift register and a liquid crystal grid electrode driving device. The shift register comprises a first thin film transistor, a second thin film transistor, a third thin film transistor, a fourth thin film transistor, a down-pulled thin film transistor and a down-pulled thin film transistor driving unit; the drain electrode of the down-pulled thin film transistor is respectively connected with a signal output end and the source electrode of the first thin film transistor; the source electrode of the down-pulled thin film transistor is connected with a low-voltage signal input end; and the down-pulled thin film transistor driving unit is used for controlling the opening of the down-pulled thin film transistor when a signal output by the signal output end is in low level and a signal input by a first clock signal input end is in high level. The shift register and the liquid crystal grid electrode driving device can effectively inhibit the output noise and ensure that all the thin film transistors therein can not be prone to large threshold voltage deviation, thereby having normal working life.

The invention relates to a flame-retardant bi-component polyurethane adhesive and a preparation method thereof. A soft and hard segment co-flame-retarding polyurethane modification method is adopted to prepare an isocyanate group component A and a polyhydric alcohol component B, wherein the component A is prepared from diisocyanate, polyhydric alcohol containing flame-retardant groups and a reactive flame retardant, and the component B is prepared from a chain extender, a crosslinking agent, polyhydric alcohol containing flame-retardant groups and a reactive flame retardant; the component A and the component B are mixed according to a certain proportion and cured, and then the polyurethane adhesive material with good flame retardance is obtained. The initial proportion can be adjusted freely to improve the mechanical property of the polyurethane adhesive material; besides, the overall properties including the flame retardance, the mechanical property, the working life and the like are more excellent; in addition, the process is simple, and application and popularization are easy.

The invention provides an efficient transport refrigeration machine which comprises a compressor, a condenser, a motor, a drying liquid accumulator, an evaporator, a switch power source connected with the motor in series, a control switch and a driver. The switch power source comprises a three-phase resonant converter with a middle tapped transformer. The efficient transport refrigeration machine is provided with the three-phase resonant converter with the middle tapped transformer, and is low in loss and high in power density, the work life of the transport refrigeration machine can be prolonged, and the reliability of the transport refrigeration machine can be improved.

The invention relates to a high-heat conducting high-air permeability less-glue mica tape and a preparing method thereof. The less-glue mica tape includes a mica paper layer, a reinforcing material layer, a resin adhesives layer and a heat conducting short staple, wherein a large amount of pore channels exist in the mica paper layer, the reinforcing material layer and the resin adhesive layer; the resin adhesive layer includes the resin adhesive uniformly distributed on the mica paper layer and the reinforcing material layer in points; the resin adhesive is formed by high-heat conducting resin powder with the heat conductivity of 0.7 to 1.2W/m*K, the particle size is 60 to 200 mesh, and the melting temperature of 100 to 180 degrees; the diameter of the heat conducting short staple is 0.1 to 100 micrometers, the length thereof if 5 micrometers to 10mm, and the heat conductivity is 2 to 200 W/m*K. The less-glue mica tape has high heat conducting performance and high air permeability, ishighly flexible, and has long working life and economic and environment-friendly preparing method.

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.

The present invention relates to a resistance welding copper alloy electrode and its production method. It is characterized by that in said electrode, on the matrix of electrode end portion at least three layers of materials are distributed, they are metal alloy layer contacted with said matrix, intermediate metal alloy composite material layer and external surface metal alloy layer. Besides, said invention also provides the concrete steps of its production method. Said copper alloy electrode has high working reliability and long working life.

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.

The invention provides a display device and a gate drive circuit and a gate drive unit circuit thereof, the gate drive unit circuit comprises an input module, a driving module and a low level maintaining module, and the low level maintaining module comprises a first charging unit and a threshold voltage self compensating unit. The voltage of a second node P in the threshold voltage self compensating unit changes along with the threshold voltage of a drop-down transistor in the low level maintaining module in a self-adaptive mode, therefore, the gate overdrive voltage of the drop-down transistor maintains a constant value, the drift amplitude of the threshold voltage of the drop-down transistor is increased, due to the fact that the overdrive voltage value is small, and the drift speed of the threshold voltage of the drop-down transistor is restrained, the gate drive unit circuit has the advantage of being long in working life.

The invention relates to a preparation method for an epoxy pouring sealant with characteristics of low viscosity, high elongation rate, and high strength. According to the present invention, an epoxy resin is modified, nanoparticles and amino-teminated polyoxypropylene are subjected to curing, toughening and viscosity reduction, an active diluent is added, and an accelerating agent is adopted to adjust a working life so as to prepare an epoxy pouring sealant with characteristics of low viscosity, high elongation rate, and high strength.

The invention provides a method for reducing electric power source system stand-by power consumption and an electric power source system which are suitable for an electric power source circuit field. The method includes steps as follows: when a non-continuous stand-by detect and control circuit unit needs to monitor, detect or awake the system, existing or increased biasing current in the non-continuous stand-by and control circuit unit is controlled for monitoring, detecting or awaking the system; when the non-continuous stand-by detect and control circuit unit needs not to monitor, detect or awake the system, biasing current in the non-continuous stand-by detect and control unit is cut off or reduced. The method provided by the invention divides the stand-by mode detect and control circuit unit, and modulates stand-by power consumption of the non-continuous stand-by detect and control circuit unit that needs not to monitor, detect or awake the electric power source continuously, accordingly, average stand-by power consumption of the whole electric power source system is reduces, and working life of battery is prolonged or the product is energy saving.

The invention relates to a new use of polyurethane hard bubble, which in detail is used as filling materials for the rejuvenating and curing of told and good trees in the tree holes. The application of the said polyurethane hard bubble in the tree rejuvenating and curing is realized by the following steps: connecting the concrete iron and iron wire to indefinite shape and putting it into the tree hole as inner support; mixing and stirring the liquid of blowing agent- isocyanate and polyether with the proportion to be 1:0.5-1.5; pouring the mixture mentioned above into the tree hole with 70-300 kg per cubic meter; fixing and sealing with preformed mold in the out, pressing bark line in the top or spiking one layer of real bark. The invention is characterized by the following aspects: water resistance, antiseptic, compression, wind resistant, resistant to flame, long working life, near contraction and expansion with the tree, elastic, the effective prevention of the continuing tree rotting and damage by the compact association with the tree, little influence of the tree growth, beautiful and simple shaping process.

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.

The invention discloses a preparation method for a diamond coated mechanical seal ring. A hard-alloy silicon-carbide/silicon nitride ceramic mechanical seal ring serves as a substrate, and a diamond thin film is deposited on a work surface of the mechanical seal ring through a hot filament chemical vapor deposition (HFCVD) method. The specific process method comprises the steps that firstly, a layer of micron-diamond thin film which is coarse in grain, excellent in abrasion resistance but difficult to polish is deposited on the surface of the substrate; and then thinned nano-diamond particles are deposited between micron-diamond particles by changing process parameters so that sunken parts between the coarse micron-diamond particles can be filled, and the purposes that the surface roughness of a diamond coating is lowered and accordingly subsequent grinding and polishing are convenient. According to the diamond coated mechanical seal ring obtained through the two-step deposition method in the preparation method, abrasion rate of a contact end face can be lowered significantly, and the working life of the diamond coated mechanical seal ring is prolonged significantly compared with a non-coated mechanical seal ring.

The present invention relates to a pre-stressed insulated tubing, including an inner tube (3) and an outer tube (2) nested outside of the inner tube (3), and a closed ring cavity is formed between the inner tube (3) and the outer tube (2), wherein an insulated casing (4) is arranged in the closed ring cavity. The pre-stressed insulated tubing of the present invention features high vacuum degree, high thermal insulation level and long working life, and the insulated casing is reusable for cost saving.

The invention discloses a mechanical arm with a collision preventing mechanism. The mechanical arm comprises a mobile cross beam; a rail is arranged on the movable cross beam; a mobile base is movably mounted on the rail; first collision preventing columns are respectively arranged at two ends of the mobile base, and are hollow structures; first buffer springs are arranged at the bottoms of the hollow structures; the other ends of the first buffer springs are fixedly connected with second collision preventing columns; and one ends of the second collision preventing columns are sleeved in the hollow structures of the first collision preventing columns. As the mechanical arm is provided with buffer devices on two sides of the mobile base and at two ends of the rail, the mechanical arm cannot be collided with two ends of the rail when moving on the rail, and the conditions of looseness of parts and damage of electronic elements on the mechanical arm caused by oscillation due to collision are prevented; and the collision preventing elastic columns protect the mechanical arm from being collided with other parts during rotating, so that the parts of the mechanical arm are effectively protected, and the working life of the mechanical arm is prolonged.