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147results about How to "Avoid loss of function" patented technology
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On-vehicle control apparatus powered by on-vehicle battery
InactiveUS20080066991A1Lower performance requirementsReduce power consumptionDigital data processing detailsSteering initiationsFrequency bandDriver/operator
A controller controls an on-vehicle device having an operating member operated by a driver to receive a driver's operating force and an assisting mechanism giving an assisting force to the operating member. This mechanism is powered by an on-vehicle battery. The controller detects forces applied to the device and calculates a control amount giving the assisting force to the device based on results detected by the force detector. The control amount is calculated every type of the applied forces whose frequency bands are at least partly different from each other. The controller drives the assisting mechanism based on the control amount and detects an operating state of the battery. The controller adjusts the control amount such that, as the calculated battery state decreases in a powering function of the battery, the control amount for, of the applied forces, a specified force having specified frequency components is monotonously reduced.
Owner:DENSO CORP
Automatic maintenance device for standby battery of uninterruptible power system (UPS)
InactiveCN102244413AExtended service lifeReduce use costEmergency power supply arrangementsCharge and dischargeAC power
The invention relates to a device for automatically charging and discharging a standby battery of an uninterruptible power system (UPS). The device comprises a control module, a voltage detection module, a switching on / off module and the like, wherein the switching on / off module is arranged at the input end of an AC power supply which supplies power to the UPS; the voltage detection module detects the voltage of the standby battery of the UPS; the switching on / off module and the voltage detection module are both electrically connected with the control module; the control module performs timing according to set automatic maintenance time, controls the switching on / off module to cut AC off to discharge the standby battery of the UPS when time obtained by the timing is equal to the maintenance time, and controls the switching on / off module to switch the AC on and performs maintenance time timing again when the voltage detection module detects the voltage of the standby battery of the UPS is reduced to a certain set value. Manual intervention is not required by the whole maintenance process to save labor cost at the same time of prolonging the service life of the UPS. Simultaneously, the invention also provides a UPS battery under voltage alarming module and a power grid power failure alarming module, which aim to timely give an alarm in exceptions.
Owner:BEIJING JINGMEI GRP GENERAL HOSPITAL
Fan tachometer update method
InactiveCN102262570AGuaranteed correctnessAvoid loss of functionDigital data processing detailsError detection/correctionElectronic systemsBaseboard
A fan tachometer update method is applied in an electronic product system with a baseboard management controller (BMC), and the baseboard management controller stores a preset fan tachometer, so that the baseboard management controller receives the input update the fan speed data and store the updated data in a temporary storage space, then write the data stored in the temporary storage space into a temporary fan speed table, and check whether the temporary fan speed table is consistent with the input fan speed update data , as a judgment of data integrity, if yes, the temporary fan speed table will overwrite the preset fan speed table, and the temporary fan speed table can be deleted.
Owner:INVENTEC CORP
Vehicle lamp
ActiveCN104566106AAvoid high temperatureAllowable injectionPlanar light sourcesVehicle headlampsOptoelectronicsSunlight
Owner:KOITO MFG CO LTD
Multi-organ chip with improved life time and homoeostasis
ActiveUS20150253309A1Easy to handleEasy manipulationBioreactor/fermenter combinationsBiological substance pretreatmentsBone marrowMedicine
The present invention is directed to a multi-organ-chip device comprising a base layer; an organ layer arranged on the base layer; an antra layer arranged on the organ layer; and an actuator layer; wherein the base layer is configured to provide a solid support for the further layers; the organ layer is configured to comprise a multiplicity of individual organ equivalents, each organ equivalent comprising one or more organ growth sections, each of the organ growth sections being configured to comprise an organoid cavity for housing at least one organoid of an organ and to comprise a micro-inlet and a micro-outlet for fluid communication between the organoid cavity of the organ growth section and a self-contained circulation system, wherein the organ layer comprises at least one organ equivalent configured to represent the organs lung, small intestine, spleen, pancreas, liver, kidney and bone marrow, respectively, and a self-contained circulation system configured to be in direct fluid communication with the organ growth sections of the organ layer via the micro inlets and outlets of the organ growth sections; the antra layer is configured to comprise a multiplicity of cavities and tubes arranged to be in fluid communication with selected organ equivalents or organ growth sections in order to allow for exchange of fluids between cavities and organ growth sections; and the actuator layer is configured to comprise a multiplicity of actuators arranged and configured to regulate a pressure force applied on a selected organ equivalent, the self-contained circulation system and / or part thereof.
Owner:TISSUSE GMBH
Exhaust valve with dual control chambers and dual floating bodies
ActiveCN107387849AAvoid distractionsAvoid interferenceOperating means/releasing devices for valvesCheck valvesExhaust valveEngineering
The invention relates to an exhaust valve, and provides an exhaust valve with dual control chambers and dual floating bodies. A sealing floating body is arranged at an exhaust port of a valve base of a lower valve cover and connected with a lower floating rod in a telescopic floating rod. An upper floating rod in the telescopic floating rod passes through an internal valve base of a valve body and is connected with the upper floating body. A locating slot is formed in the outer side of the lower side of the upper floating rod, and a locating pin matched with the locating slot is further arranged on the outer side of the lower floating rod. The lower floating body is arranged in the middle of the lower floating rod, sealing gaskets are arranged on the lower floating body, and a sealing gasket and spring bases are also arranged on the upper floating body. Groove spring bases are arranged on the lower side of an upper valve cover, an exhaust hole is further formed in the middle of the upper valve cover, and buffer springs are arranged between the spring bases of the upper floating body and the groove spring bases of the upper valve cover. A filter screen is further arranged at a water inlet end of the lower valve cover and is fixed with fixing clamp rings. Debris can be prevented from entering into the valve body, the safety of a water delivery pipeline can be guaranteed, and the exhaust valve with dual control chambers and dual floating bodies is good in sealing property, simple in structure, convenient to maintain and long in service life and also has a filtering function.
Owner:QUANZHOU YUANLUN AUTOMATIC CONTROL VALVE TECH CO LTD
Interface protective circuit
InactiveCN101162840AImprove protectionAvoid loss of functionEmergency protective arrangements for limiting excess voltage/currentExternal interfaceVoltage
The present invention discloses an interface protection circuit, which comprises a transient voltage restraining TVS discharging circuit and a signal isolating circuit which are connected in series by signal lines sequentially between an external interface and the protected interface, wherein, a clamping circuit is connected in series between the signal isolating circuit and the protected interface. The present invention further discloses an interface protection circuit which comprises a signal isolating circuit which is connected in series between an external interface and the protected interface by signal lines, wherein, a clamping circuit is connected in series between the signal isolating circuit and the protected interface.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Actuator cylinder
InactiveCN102162477AImprove reliabilitySatisfy the use safety requirementsFluid-pressure actuatorsBall screwActuator
The invention discloses an actuator cylinder which comprises a motor (3), a speed reducer (4), a synchronous transmission mechanism, a transmission mechanism, an outer cylinder (16), a piston rod (18) and an in-position mechanism, wherein the motor (3) is connected to one end of the speed reducer (4); the other end of the speed reducer (4) is connected with the transmission mechanism of the outer cylinder (16) through the synchronous transmission mechanism; the transmission mechanism comprises a ball screw (11) and a ball screw nut (13), wherein the ball screw is installed in the outer cylinder (16) and extends along the axis of the outer cylinder (16), and the ball screw nut is sleeved on the ball screw; the ball screw nut (13) is connected with the piston rod (18); and the outer cylinder (16) is provided with the in-position mechanism. The actual cylinder is characterized in that the actuator cylinder also comprises an emergency driving mechanism, because a pneumatic emergency driving mechanism is provided, the dual-redundancy design of the actuator cylinder is realized, the function loss of the actuator cylinder when a circuit is in fault and the motor can not work is avoided, the reliability is improved, and the use safety requirement is satisfied.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP +1
Vacuum switch tube and vacuum switch
ActiveCN107342185AStable structureImprove performanceHigh-tension/heavy-dress switchesAir-break switchesEngineeringAtmospheric pressure
The invention discloses a vacuum switch tube and a vacuum switch, and belongs to the technical field of vacuum switches. The vacuum switch tube and the vacuum switch are designed for solving the problems that an end cover in an existing structure is easy to damage and the like when a thermoplastic solid-sealed polar pole is produced. The vacuum switch tube comprises an insulated enclosure, and end covers are separately arranged at two ends of the insulated enclosure; a reinforcing structure is arranged on the inner side of at least one end cover and is used for supporting the end cover when the thermoplastic solid-sealed polar pole is produced. The invention also provides a vacuum switch comprising the vacuum switch tube. According to the vacuum switch tube and the vacuum switch provided by the invention, when the thermoplastic solid-sealed polar pole is produced and a vacuum quenching pot needs to bear dozens of times of atmospheric pressure, the problem of function loss of the vacuum quenching pot caused by serious deformation of the end covers can be solved by the reinforcing structure of the vacuum switch tube, and the structure and the performance of the vacuum switch keep stable and reliable.
Owner:BEIJING BOE VACUUM ELECTRONICS CO LTD
Method for improving deformability of high-ductility concrete
Owner:CHINA RAILWAY NO 2 ENG GRP CO LTD +1
Self-adhesion reactive, water-swellable and waterproof sealing material and production method thereof
ActiveCN104745123AExpand the scope of useCan't solveNon-macromolecular adhesive additivesMacromolecular adhesive additivesLithium chlorideSodium Bentonite
The invention relates to a self-adhesion reactive, water-swellable and waterproof sealing material and a production method thereof. Butyl rubber is used as the matrix of the self-adhesion reactive, water-swellable and waterproof sealing material, and other raw materials comprise polyisobutene, amorphous alpha-olefin copolymer, desulfuration gypsum, bentonite, tackifying resin, lithium chloride, calcium chloride, calcium stearate and a crosslinking agent, and counted in parts by weight, the proportions of the components are as follows: 50-100 parts of butyl rubber (IIR), 50-120 parts of polyisobutene, 5-10 parts of amorphous alpha-olefin copolymer, 100-180 parts of desulfuration gypsum, 80-120 parts of bentonite, 12-25 parts of tackifying resin, 0.1-2 parts of lithium chloride, 1-10 parts of calcium chloride, 0.08-1.2 parts of calcium stearate and 0.5-3 parts of crosslinking agent. By adopting the self-adhesion reactive, water-swellable and waterproof sealing material provided by the invention, the utilization range of the solid waste desulfuration gypsum is expanded, the problem that the existing waterproof sealing product cannot generate a chemical crosslinking reaction with concrete is solved as well, the two components are organically combined to turn waste into wealth, and the self-adhesion reactive, water-swellable and waterproof sealing material with a self-recovery function is innovatively provided.
Owner:解忠深
Methoxy polyethylene glycol-polyphosphate diblock copolymer and adriamycin bonding medicine thereof
InactiveCN103055321APromote enrichmentNo free toxic side effectsOrganic active ingredientsPharmaceutical non-active ingredientsPolymer scienceNanoparticle
The invention discloses a macromolecular bonding medicine based on adriamycin. The active ingredient of the bonding medicine is nanoparticles formed by bonding of a polyphosphate polymer and adriamycin. Specifically, the polyphosphate polymer can be a methoxy polyethylene glycol-polyphosphate diblock copolymer with amino as the side group. The invention also provides a methoxy polyethylene glycol-polyphosphate copolymer with an amino side group and a method for synthesizing the copolymer. The polyphosphate adriamycin macromolecular bonding medicine provided in the invention can self-assemble to form nanoparticles with a particle size of about 30nm. Through the intrinsic scale effect of the nanoparticles and by combining a charge reversal technology, the nanoparticles can better concentrate in a tumor tissues and a cell, thus enhancing the targeting property of adriamycin on a tumor site. And the adriamycin bonded on a polyphosphate polymer chain can have responsiveness to a tumor tissue microenvironment, and can be rapidly released in the tumor tissue under a weakly acidic condition. And a good tumor cell-killing effect can be achieved.
Owner:UNIV OF SCI & TECH OF CHINA
Antistatic synthetic leather and preparation method thereof
InactiveCN103046393AAvoid loss of functionImprove performanceSynthetic resin layered productsTextiles and paperPolymer sciencePolymer chemistry
The invention discloses antistatic synthetic leather and a preparation method thereof. The antistatic synthetic leather is prepared by a calendaring method with antistatic agent size. The antistatic agent size is made from the following components in parts by weight: 100 parts of PVC (Poly Vinyl Chloride) resin powder, 10-20 parts of TPU (thermoplastic polyurethane) resin, 5-10 parts of an antistatic agent, 40-60 parts of epoxidized soybean oil, 2-10 parts of a color cake, 3-7 parts of a stabilizing agent and a foaming agent, and 10-40 parts of superfine filler. The synthetic leather disclosed by the invention has the characteristics of good mechanical property and antistatic property.
Owner:JIANGSU GUOXIN SYNTHETIC LEATHER
Pneumatic window breaking fire extinguishing cannon
The invention provides a pneumatic window breaking fire extinguishing cannon, belongs to the technical field of fire fighting, and is used for solving the technical problems by providing the pneumatic window breaking fire extinguishing cannon which is not limited via civil control and has the capacity of breaking the glass and emitting a fire extinguishing bomb into the room to extinguish the fire when fire occurs. The adopted technical scheme is that a central fixing pipe is vertically arranged at the middle of bomb body of the fire extinguishing bomb with a structure in shape of sealed barrel, wherein the fire extinguishing bomb is arranged in a bomb barrel through a sealing ring; a flammable and combustible mixing gas chamber is sleeved on the central fixing pipe, and a fire extinguishing agent is filled between the flammable and combustible mixing gas chamber and the internal wall of the bomb body; a plurality of through holes are fixed to the wall of the central fixing pipe in the flammable and combustible mixing gas chamber; a fuze with a detonating fuse head extended into the flammable and combustible mixing gas chamber is arranged at the middle of the upper end surface of the bomb body; the lower end of the central fixing pipe is communicated with a gas outlet of an one-way valve; and a plurality of two-sectional type window breaking folding wings with self-restoring hinges at the middle parts are fixed to the periphery of the upper part of the central fixing pipe. The pneumatic window breaking fire extinguishing cannon provided by the invention is mainly applied to fire fighting.
Owner:邓全龙
Artemia ovum hatching method with high hatchability rate
InactiveCN1631131AImprove hatchabilityAvoid deathClimate change adaptationOther angling devicesPackaging TankHatching
The invention discloses an Artemia ovum hatching method with high hatchability rate which comprises the steps of, freezing the collected insect ovum, drying directly, charging capsule with chemicals into the packaging tank, packaging together with the insect ovum, the chemicals include solids capable of generating hydrogen peroxide, during the using process, the insect ovum and capsule are poured into the hatching pool for hatching. The method can substantially increase hatching rate, the quality period can be extended for over 6 months.
Owner:付瑞岭
Emergency reactor core cooling system, and boiling-ater nuclear power plant
InactiveCN103222008AQuantity minimizationAvoid loss of functionPower plant safety arrangementNuclear energy generationStandby powerAtomic energy
An emergency reactor core cooling system is provided with at least four dynamic safety sections each equipped with an electrically-driven dynamic safety system, and at least one static safety section equipped with a static safety system that does not require to be electrically driven. The number of dynamic safety sections is equal to or greater than the number of dynamic safety sections needed during a design basis accident by two and each dynamic safety section is provided with one electrically-driven dynamic safety system. The static safety system is capable of cooling the reactor core without being re-supplied with cooling water from the outside during the time needed for the dynamic safety system subjected to online maintenance to recover when supposing that an accident occurred during online maintenance of one dynamic safety system. An emergency reactor core cooling system for a boiling-water nuclear power plant, wherein it is possible to reduce the size of an emergency power source and the number of electrically-driven systems, and to prevent a plurality of systems from losing the function thereof caused by an auxiliary cooling system losing the function thereof.
Owner:KK TOSHIBA
Method for thermal desorption treatment of organic polluted soil
InactiveCN109570215APore structure retentionIncrease organic matterContaminated soil reclamationCarbonizationOrganic content
The invention belongs to the technical field of polluted soil renewal and relates to a method for thermal desorption treatment of organic polluted soil. The method includes steps: subjecting thermal desorption exhaust gas at a temperature of 120-700 DEG C and the organic polluted soil to countercurrent contact reaction for 5-30min to obtain organic-pollutant-containing desorption exhaust gas and thermal desorption soil; drying biomass until the moisture content is smaller than or equal to 12%, and crushing to a length smaller than or equal to 20cm to obtain biomass sections; well mixing the thermal desorption soil with the biomass sections to obtain a mixture A, subjecting biomass in the mixture A to low-temperature pyrolysis carbonization reaction at a temperature of 250-450 DEG C, and heating the soil to obtain organic-carbon-containing remediated soil and pyrolysis gas of low-temperature pyrolysis carbonization. The soil subjected to thermal desorption and the biomass are mixed forpyrolysis carbonization, the organic content is substantially increased, soil functions are recovered, and the problem of soil function loss caused by burning damages of organic matters in conventional thermal desorption soil remediation is avoided.
Owner:KUNMING UNIV OF SCI & TECH
Muffler for an exhaust system of vehicle
InactiveUS20130056299A1Prevents deterioration of componentAvoid loss of functionExhaust apparatusSilencing apparatusPlastic materialsFuel efficiency
Disclosed is a muffler for an exhaust system of a vehicle, which improves fuel efficiency through weight reduction and reduces deterioration of peripheral components. To this end, the present provides a muffler for an exhaust system of a vehicle. More specifically, the muffler includes a triple-material hollow casing, in which an outer layer formed of a plastic material and disposed on the outermost surface of the muffler, an intermediate insulating layer disposed on the inside of the outer layer and containing an aerogel material, and an inner layer formed of a stainless steel material and disposed on the inside of the intermediate insulating layer are stacked.
Owner:HYUNDAI MOTOR CO LTD +1
Fuel cell filter capable of remarkably improving dehumidification performance and dehumidification filtering method thereof
ActiveCN111180763AReduce high frequency noiseImprove driving experienceFuel cellsFuel cellsAir filter
The invention discloses a fuel cell filter capable of remarkably improving dehumidification performance and a dehumidification filtering method thereof. The filter is of a three-layer coaxial bottle-shaped housing structure and sequentially comprises an inner housing, a middle housing and an outer housing from inside to outside; the inner housing is used for exhausting and is provided with a spiral partition plate, a water absorbing material and a harmful gas adsorbing material; a spiral ridge is arranged on the inner side of the middle housing, an air inlet is formed in the upper portion of the spiral ridge, multiple leaf protrusions are arranged at the bottom of the middle housing, and a self-cleaning channel is arranged on the periphery of the inner side of the bottom; and an air inletand a drain outlet are formed in the housing. Air containing various impurities flows downwards from the spiral channel, so that the impurities and the liquid drops do centrifugal motion and fall on the bottom surface of the middle-wall housing, and the large-particle impurities and the liquid drops are discharged out of the self-cleaning channel through rotation of the blade protrusions and are discharged out of the drain outlet; and then the air enters the inner housing, is subjected to graded dehumidification and harmful gas absorption and then, is exhausted through the air outlet. The problems that an existing air filter is poor in self-cleaning performance, and harmful gas harmful to the fuel cell stack cannot be removed are solved.
Owner:JIANGSU UNIV
Safety detection method and system for preventing drunk driving of vehicle
InactiveCN108297689AGood value for moneyHigh degree of intelligenceTractorsPropulsion unit safety devicesDrunk drivingMaterial resources
The invention provides a safety detection method and system for preventing drunk driving of a vehicle. The safety detection method comprises the steps that information of gas blown into collecting equipment by a user is obtained; whether the gas information exceeds the preset threshold value or not is judged; if the gas information exceeds the preset threshold value, a power supply of a fuel pumpis disconnected; and if the gas information does not exceed the preset threshold value, the power supply of the fuel pump is connected. According to the user gas information obtained by the collectingequipment, a relay of the fuel pump of the vehicle is controlled, before the vehicle is started by the user, the safety detection system for preventing drunk driving of the vehicle forces to ask theuser to actively being subjected to an alcohol concentration test, and when the user passes the alcohol test, the safety detection system for preventing drunk driving of the vehicle can allow the userto start the vehicle. Otherwise, the relay of the fuel pump of the vehicle is controlled to be disconnected with the power supply of the fuel pump, and the vehicle cannot be started, so that a drunkdriving detection mode is changed into vehicle monitoring and user active test instead of a previous mode of traffic police checking a drunk driving behavior, the working difficult of checking and treating drunk driving by traffic polices is reduced, and investment of social manpower and material resources in traffic maintenance work is reduced.
Owner:GUANGZHOU IND & TRADE TECHNICIAN COLLEGE
Water-based forest and building fire disaster fire extinguishing agent and preparing method thereof
The invention discloses a water-based forest and building fire disaster fire extinguishing agent and a preparing method thereof. The water-based forest and building fire disaster fire extinguishing agent comprises following raw material components including, by weight, 5-10 parts of water-based phosphorus nitrogen polyester fire retardant, 1-3 parts of potassium sulphate, 1-3 parts of sodium metaaluminate, 15-20 parts of water-based bentonite, 1-3 parts of water-based rosin emulsion, 0.3-0.8 part of triethanolamine, 1-3 parts of phytic acid, 0.1-1 part of polyvinyl alcohol, 0.5-1 part of sodium dodecyl sulfate, 0.1-0.5 part of an anti-settling agent YH-C, 0.1-0.5 part of sodium carboxymethyl cellulose, 3-6 parts of urea and 5-10 parts of polysiloxane emulsion, and a proper amount of water is adopted. The water-based forest and building fire disaster fire extinguishing agent is free of toxicity and pollution, fire extinguishing is rapid, fireproof isolation can be rapidly and effectively formed, and fire behavior spreading is prevented.
Owner:福建漳平众知防火科技有限公司
Localized therapeutic hypothermia system, device, and method
ActiveUS10271987B2Avoid loss of functionPrevent functional degradationTherapeutic coolingTherapeutic heatingThermoelectric coolingAuditory pathways
Therapeutic application of mild to moderate hypothermia in a medical procedure has been found to provide benefits to patients. For example, application of mild hypothermia in the auditory pathway can prevent functional hearing loss post cochlear implant surgery. Devices have been conceived and reduced to practice that apply localized cooling to a small area such as the basal or middle turn of the cochlea. The devices include a cooling tip with at least one thermo-conductive surface. A heat-transporting fluid is circulated through the cooling tip. After absorbing heat, the heat-transporting fluid may be controllably cooled with a thermoelectric cooling device.
Owner:UNIV OF MIAMI +1
Fuse line fixing structure of fuse
A fuse line fixing structure of a fuse includes a base having first and second support sections. The first support section has two sides each forming a first wing and a first concave surface is formed between the first support section and the first wings. First and second electrodes are respectively arranged at two ends of the base. The first electrode includes a first curved plate arranged between the first support section and the first wings. The first curved plate has a convex engagement surface positioned against the first concave surface and a concave engagement surface facing toward an upper side of the first concave surface. The fuse line straddles between the first and second support sections and has an outer circumferential surface in mutual contact, through surface to surface engagement, with the concave engagement surface of the first curved plate.
Owner:CONQUER ELECTRONICS
Rapid marine rescue escape capsule
The invention discloses a rapid marine rescue escape capsule, and relates to the field of marine rescue. The escape capsule is simple in structure and convenient to use. The escape capsule is providedwith a moving mechanism, so the escape capsule can be rapidly moved and put into use when an accident occurs; the escape capsule is provided with a secondary capsule body, so that the rapid marine rescue escape capsule can be retracted, and the space is saved when the rapid marine rescue escape capsule is not used. A power assembly is arranged to drive an outer isolation cabin door to be opened and closed, so the situation that people falling into water cannot open the outer isolation cabin door due to fatigue and lack of strength is prevented; a buoyancy air bag is arranged to inflate the outer isolation cabin door when needed to increase the buoyancy of the whole device, and it is ensured that the device can float on the sea surface; rubber protection projections are arranged to preventthe buoyancy airbag from being broken, and due to the fact that the environment in the sea is complex, particularly after marine disasters, the buoyancy airbag is prevented from being punctured by foreign matter and losing effect due to the fact that the rubber protection protrusions are arranged; and the survival ability of marine disasters can be greatly improved to wait for rescue due to the fact that a freshwater processing box is arranged.
Owner:CHINA MARITIME POLICE ACADEMY
Dust-proof filter mask
InactiveCN103585722AKeep healthyCompact structureFire rescueRespiratory apparatusInhalationRespirator
The invention discloses a dust-proof filter mask which comprises a mask body and fixing bands. The mask body and the fixing bands are connected. The mask body comprises a breathable outer layer, a filter layer and an inner layer, the breathable outer layer, the filter layer and the inner layer are connected in sequence from outside to inside, the inner layer comprises an edge part and a middle part which are connected with each other, the middle part comprises an upper flat plate body, the upper flat plate body corresponds to the position of the nostrils, a nostril air inlet one-way valve is arranged on the upper portion of the upper flat plate body, and a nostril air outlet one-way valve is arranged on the lower portion of the upper flat plate body. The nostril air inlet one-way valve comprises a nostril air inlet valve groove and an air inlet rectangular hole which are matched with each other, the air inlet rectangular hole is covered with a nostril air inlet valve sheet, the nostril air outlet one-way valve comprises an air outlet valve groove and an air outlet rectangular hole, the air outlet rectangular hole is covered with a nostril air outlet valve sheet, and the air outlet valve sheet is connected with the air outlet valve groove in the left side or the right side of the air outlet rectangular hole. The dust-proof filter mask is low in inhalation and exhalation resistance and suitable for being used by a wearer requiring the mask with a plurality of layers and the large inhalation resistance of the mask, and guarantees the body health of a user.
Owner:张秀霞
Large water hole bypass valve for screw drill
The invention relates to the technical field of manufacturing of petroleum drilling tools, in particular to a large water hole bypass valve for a screw drill. The large water hole bypass valve comprises a bypass valve body, and a snap spring, a spacing plate, a sieve plate and a spacing plate mounted in a bypass hole of the bypass valve body in sequence, wherein a one-way valve is additionally mounted in the bypass hole, and mainly consists of a one-way valve body, a spring, a valve core and an internal hexagonal nut; a step-shaped inner hole is formed in the one-way valve body; the spring is positioned in a small hole of the step-shaped inner hole of the one-way valve body; one end of the spring is connected with the top end of the valve core; and the hexagonal nut is in threaded connection with the one-way valve body. Such parts as valve cores and valve sleeves with conventional model numbers in the bypass valve body are reduced, so that the internal structure is simple, is easy to be processed, and is convenient to be assembled; and the parts can be conveniently replaced in a well mouth, so that the maintenance cost is saved. The internal annulus of the bypass valve body is largely improved, so that the vertical pipe pressure loss is reduced.
Owner:TIANJIN LILIN GASOLINEEUM MACHINERY
Deicing method for optical power ground wire (OPGW) under non-insulated transformation condition
ActiveCN106159860AAvoid economic and social lossAvoid fiber optic communication function impairmentOverhead installationOptical powerAutomatic control
The invention provides a deicing method for an optical power ground wire (OPGW) under a non-insulated transformation condition. The deicing method comprises the following steps of 1, installing an embedded OPGW in a power transmission line; 2, connecting a deicing power supply to the embedded OPGW; 3, monitoring the ice coating thickness and the deicing temperature of the embedded OPGW in real time by a data control platform, and starting the deicing power supply to deice the embedded OPGW if the ice coating thickness exceeds an ice coating threshold value; and 4, automatically adjusting a current and a voltage output from the deicing power supply according to real-time feedback data of the deicing temperature so as to achieve automatic control on a deicing process. Compared with the prior art, the deicing method for the OPGW under the non-insulated transformation condition, provided by the invention, has the advantages that the deicing of the OPWG in a non-powercut state of a circuit is achieved, meanwhile, the deicing temperature is monitored on line, and unmanned operation can be achieved.
Owner:CHINA ELECTRIC POWER RES INST +2
Localized therapeutic hypothermia system, device, and method
ActiveUS20150238354A1Efficient temperature transferAvoid loss of functionTherapeutic coolingTherapeutic heatingThermoelectric coolingAuditory pathways
Therapeutic application of mild to moderate hypothermia in a medical procedure has been found to provide benefits to patients. For example, application of mild hypothermia in the auditory pathway can prevent functional hearing loss post cochlear implant surgery. Devices have been conceived and reduced to practice that apply localized cooling to a small area such as the basal or middle turn of the cochlea. The devices include a cooling tip with at least one thermo-conductive surface. A heat-transporting fluid is circulated through the cooling tip. After absorbing heat, the heat-transporting fluid may be controllably cooled with a thermoelectric cooling device
Owner:UNIV OF MIAMI +1
Backflow-prevention drainage structure for ship
InactiveCN110626464ASmall footprintImprove stabilitySelf-bailing equipments/scuppersVessel partsEngineeringSewage
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD
Gunpowder nail
The invention provides a gunpowder nail. The gunpowder nail comprises a body and gunpowder, wherein the body is provided with a first end and a second end which are opposite; a nail body which is outwards bulged is arranged on the first end; an accommodating chamber is formed in the second end; the gunpowder comprises a gun propellant, first bottom gunpowder and a protective layer, wherein a groove is sunken in one end of the gun propellant, the first bottom gunpowder is formed in the groove; the protective layer is at least covered with the gun propellant, and an opening of the groove is at least covered by one end of the first bottom gunpowder; the surface area of the end part, with the groove, of the gun propellant is larger than the area of the groove opening, so that the bottom gunpowder of the gunpowder can be temporarily isolated to prevent dampness or accidental detonation.
Owner:PREGUN IND
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