1505 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.

An illumination device having an unidirectional heat-dissipating route, includes a heat sink and a LED light module. The heat sink includes a heat plate, a heat pipe and a heat-dissipating body. The heat pipe has a heat absorbing portion and a heat dissipating portion with a horizontal position different to that of the heat absorbing portion. The heat absorbing portion is connected to the heat plate, and a plurality of grooves is formed in the heat pipe to be communicated with the heat absorbing portion and the heat dissipating portion. The heat absorbing portion is lower than the heat dissipating portion. The heat-dissipating body is connected to the heat dissipating portion. The LED light module is connected to the heat plate. Thus the LEDs are protected and prevented from being destroyed by the heat, and the working life thereof is increased greatly.

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 an ultrasonic surface rolling process nanostructure device and method, belonging to the mental surface process technical field, which comprises an ultrasonic generator and an executive mechanism. The executive mechanism consists of an ultrasonic transducer, an ultrasonic horn and an ultrasonic working joint, which is characterized in that the ultrasonic working joint is a rolling ball body. The method includes two steps: (1) the choice of the parameters is that the rotary speed of the Machine Tool Spindle is 200r to 700r per min; the axial direction feeding quantity of the working joint is 0.02mm to 0.1mm per r; the static pressure of the executive mechanism is 50N to 500N; the output terminal swing of the working joint is 5mm to 25 mm; (2) the reciprocating process is 2 times to 15 times. By adopting the device to carry out the nanostructure, the working life of the working joint can be prolonged and the crystal fineness of the same depth from the area closer to the surface is ensured to be more strict and even, thus obtaining the ideal surface finish. The surface can form noncrystalline nanometer crystal layer of about 100 mm depth.

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.

The invention discloses a fluid-driven impactor, a power transmission mechanism for the impactor and the use of the impactor. In the prior art, the working life of the impactor is short, since a rubber primary seal and an upper fluid-diverging lid for the fluid-driven impactor are both liable to erosion and the efficiency in transmitting power is low due to the complexity of the power transmission mechanism. In order to increase the drilling speed and / or extend the life of the impactor, the side cavity passage is formed in such a way that the inner wall of the outer pipe is isolated from the side cavity passage in a watertight manner without the use of the rubber primary seal. The loss in transmitting power is minimized by integrating the anvil of the power transmission mechanism and the lower joint. The problem of abrasion of the fluid-diverging hole is overcome and the nozzle can be used with different fluid flow by mounting a replaceable nozzle in the upper fluid-diverging lid, the nozzle selected from a series of nozzles with various inner diameters and made of a material more wearable than the material for diverging lid the upper fluid.

The invention discloses a compressor unit control method, and aims to provide a compressor energy regulating and controlling method of a modular cold / hot water unit, wherein the compressor energy regulating and controlling method is stable for control, high in control precision and capable of effectively ensuring the working life of the unit. In the invention, the running states of compressors are adjusted together, according to the average water inlet temperature and the water inlet temperature variation rate of sequentially numbered module groups between a water inlet path and a water outlet path, and the compressors can be controlled to start and stop according to a certain order at certain time interval, so that the compressors are started and stopped more smoothly and the impact on the grid is reduced; in an operation process, the number of the compressors to be run can be determined more accurately according to the different working conditions, so that the frequently start and stop phenomena of the compressors are reduced and the start loss is reduced; meanwhile, the compressor units can be ensured to meet load demands faster and more accurately, thus the advantages of saving energy and prolonging the lives of units are achieved. The compressor energy regulating and controlling method disclosed by the invention can be widely applied in the cold / hot water unit control field.

The invention relates to a high-power LED intelligent control system which includes a MCU center controller, a constant current drive circuit, a high power LED array, an optical detector, a temperature sensor, a memorizer and a wireless communication module. The system regards the MCU center controller as a core, the constant current drive circuit is controlled by the controller for adjusting the output current size, correspondingly, adjusting high power LED brightness; the optical detector, the temperature sensor, the memorizer and the wireless communication module also connect with the center controller. The system provided by the invention can intelligent control LED lamp input current size, make the LED chip junction temperature lower than threshold that can increase LED lamp working life, and record LED lamp working parameter convenient to follow detection timely, and detect LED lamp fault with low cost. The system has advantages of high efficiency, flexible, intelligent and energy saving. One important characteristic of the system is that the system can wireless remote control LED road lamp or channel lamp, realize downloading key LED working parameter timely, is convenient for managing the LED lighting system, reduce operating cost for managing the LED lighting system, and also embody advantage of the LED lighting with high efficiency and energy saving.

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 discloses an epoxy resin dough moulding compound and a preparation method thereof. The epoxy resin dough moulding compound is prepared by evenly kneading 35-40 parts by mass of epoxy resin paste, 4-5 parts by mass of curing agent mixture and 65-70 parts by mass of chopped fiber, wherein the epoxy resin paste comprises the following components in parts by mass: 80-120 parts of epoxy resin, 5-10 parts of plasticizer, 4-8 parts of filler, 3-6 parts of mould release agent and 0.5-2 part(s) of coupling agent; the curing agent mixture comprises the following components in parts by mass: 4-7 parts of latent curing agent, 1-3 part(s) of accelerator and 6-10 parts of amine curing agent, and the length of the chopper fiber is one eighth to one half inch. Compared with the traditional method, the preparation method eliminates the curing process, and the dough moulding compound is prepared by adding modifying components and different curing systems into the epoxy resin. The method has the advantages of simple operation, high production efficiency, long working life and easy formation. Since the baking oven and other heating equipment are not needed, the method can reduce the energy consumption. Moreover, the method is applicable to fields of structural materials and composite materials with high requirements for insulation and electrical properties, and can be easily promoted and implemented.

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.

This invention relates to a power tool (1) including an operative element (4) for treating a work piece. The power tool (1) defines an air passageway and includes propelling means (20) operative to induce air to flow through the passageway. The passageway direct the induced air over the power tool's motor (14) to cool the motor (14). The air is exhausted from the tool (1) by exhaust means onto the operative element (4) and a worked face of the work piece. This cools the operative clement (4) which prolongs its working life. Furthermore, the exhausted air facilitates removal of swarf from the worked face.

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.

A tubing assembly is provided that can comprise a plurality of tubes or lumens that can be disposed within a head of a peristaltic pump. The tubing assembly can provide a flow rate or volume capacity that is generally equal to or greater than that achieved with a comparable prior art tube while operating at higher pressures than that possible using the prior art tube. Further, in accordance with some embodiments, the tubing assembly can achieve a longer working life than a comparable prior art tube, and the load on the pump motor can be reduced such that the pump life is increased and / or a larger pump motor is not required to achieve such advantageous results.

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 discloses a high-tenacity and low-temperature-resistance resin matrix and a preparation method thereof. The resin matrix comprises main body resin (epoxy resin), toughening components (epoxy resin modified by engineering plastics such as polyurethane), a curing agent, nano-components (nano-particles such as modified carbon nano-tubes, graphene and montmorillonite) and other processing agents such as an active diluent and an accelerant. By synthesizing the toughening components, the curing agent and the modified nano-particle components and regulating the cooperation ratio of the main body resin to the toughening components to the nano-particle components to the diluent to the curing agent to the accelerant, the resin matrix which is good in low temperature resistance, excellent in comprehensive mechanical property, proper in viscosity and long in working life and meets liquid formation process requirements such as wet process winding is prepared, the limitation that the poor low temperature resistance and process property of the traditional epoxy resin are not suitable for liquid formation such as wet process winding is solved, and a great guiding significance is provided for preparation of low-temperature-resistance resin composite materials.

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.