73results about How to "Overcome aging" patented technology

Rather than storing a table within a digital camera or other optical device of defective pixels within its image sensor, defective pixels are dynamically identified by comparing the output values of individual pixels under test with those of neighboring pixels. If the neighbors are all above or below the pixel under test by a defined threshold amount, the output of the pixel under test is replaced with a value calculated from the outputs of neighboring pixels.

The invention discloses an on-track correcting device of a space-borne phased array transmitting antenna, which is characterized in that on-track correcting is started by a correcting control module to trigger a reference signal generation module to generate correcting reference signals; radio frequency transmitting signals are output after the correcting reference signals are processed by the radio frequency transmitting front terminals of each channel of a multi-channel radio frequency transmitting front terminal module; the radio frequency transmitting signals of some channel are fed back by a radio frequency feedback module; the digitized feedback signals of the channel are output after being processed; an amplitude-phase error calculation module calculates the amplitude and the phase error between the feedback signals and the correcting reference signals of the channel according the maximum likelihood estimation rule; an amplitude-phase correcting module compensates the amplitude and the phase error of the channel according to the amplitude and the phase error obtained by calculation; and the channels are successively compensated in this way, and the amplitudes and the phases of the channels approach to be consistent.

The invention provides a waterproof polyurea coating and a preparation method thereof. The waterproof polyurea coating comprises a component A and a component B, wherein the component A comprises 3,3-dimethyl- 4,4-diisocyanatodicyclohexylmethane, polyether glycol and a solvent; and the component B comprises aminopolyether, an amine chain extender, a plasticizer and silane-modified nanometer lithopone. According to the waterproof polyurea coating, 3,3-dimethyl-4,4-diisocyanatodicyclohexylmethane is used as the raw material, so that the light stability and weather resistance of the waterproof polyurea coating are improved, the problem that a coating prepared by taking an aromatic compound as a raw material is easily aged is solved, the coating is kept to have long enough gelling time and curing time, and the coating is relatively good in permeation and combination with a substrate. The silane-modified nanometer lithopone is adopted, so that the corrosion resistance and ageing resistance of the coating are improved; and ultraviolet is effectively absorbed, and a photocatalytic reaction is carried out, so that the coating has antibacterial property, and the pollution resistibility of the coating is improved.

Disclosed are an ACP (artificial societies, computational experiments and parallel execution) method-based traffic signal recommendation system and a corresponding method. The corresponding method includes collecting and processing traffic information into a sparse matrix format; setting evaluation indicators of a current task; performing data filling to the sparse matrix according to the evaluation indicators; optimizing the sparse matrix through a control algorithm to generate a scoring matrix; analyzing current road condition and matching the same to the scoring matrix; recommending a best timing plan for the current road condition according to the scoring matrix; performing the recommended best timing plan to the current road condition. According to the management, the ACP method is adopted, stimulated predictions of mass traffic conditions and the corresponding timing plans are performed in a manual system through data driving and computational experiments, finally the parallel execution is achieved in the actual traffic conditions with feedback information recorded. On the basis of a model-free self-adaptive idea, the problems such that the actual traffic conditions are difficult to accurately model, and the timing plans are not matched with the actual road conditions are solved.

The invention provides a laser-welding fiber grating surface temperature sensor which comprises a fiber, a metal substrate and a bottomless nonmetal framework. The fiber comprises a fiber grating plated with a metal layer and signal transmission tail fibers at the two sides of the fiber grating. The two ends of the fiber grating are fixed to the metal substrate through laser welding; the signal transmission tail fibers are respectively sleeved by a fiber protection sleeve pipe; the bottom portion of the nonmetal framework is fixed to the metal substrate; the nonmetal framework is provided with through holes for allowing the fiber protection sleeve pipes to pass through; and the nonmetal framework is internally filled with paste-like heat-conduction silicone grease. The fiber grating is subjected to coating layer removing and metal film layer plating, and is then, fixed to the metal substrate through the laser welding method, thereby realizing full metal packaging of a temperature sensing portion of the whole sensor, and overcoming creep and aging of adhesives in a conventional adhesive substrate fiber grating temperature sensor; and compared with glass welding, the laser-welding fiber grating surface temperature sensor has higher mechanical strength, and can bear higher test temperature; and fiber grating object surface temperature measurement long-term reliability and stability are improved on the whole.

The invention discloses a mechanical backup device for a petroleum logging tool, which comprises a cylindrical housing; a plurality of backup parts capable of being accommodated in the housing are uniformly arranged on the outer side of the housing in the circumferential direction; the backup parts improve the success rate of pricking probes into a sleeve wall effectively through adopting a mechanical backup way; the force of pricking the probe in a sleeve is large, and the action consistency is high; the three probes uniformly distributed on the circumference can be firmly pricked on the sleeve wall to form a stable measuring environment, the working efficiency is high, the reliability is strong, and the operation is simple; a driving force for driving the backup parts is provided, without adopting hydraulic expansion and contraction of a rubber part, so that the defects that the rubber is easy to age and the service life is short are overcame, so that the mechanical backup device can be repeatedly used; and the selectivity of the driving force is wide, and power can be provided for the mechanical backup device through hydraulic driving or motor driving.

The invention discloses a building phosphogypsum powder thermal insulation material and a preparation method thereof. The thermal insulation material comprises the following ingredients: 40-50 wt% of building gypsum powder, 10-15 wt% of cement, 8-13 wt% of fly ash, 1-2 wt% of foaming agent, and 30-40 wt% of water. The preparation method comprises the following steps: (1) putting building gypsum powder, cement, fly ash and other solid raw materials in a mixer for dry mixing, putting a mixture of water and foaming agent in the mixer, and stirring to form an uniform slurry; (2) injecting the prepared gypsum foamed slurry in a mould; and (3) demoulding and carrying out maintenance to obtain a finished product. The thermal insulation material has the following advantages: (1) low unit weight, low thermal conductivity, thermal insulation, and energy saving property; (2) functions of fire resistance, sound resistance, and air humidity adjustment; and (3) reduction of storage quantity of industrial waste residues.

The molded composite material tray of the present invention is produced with natural material, non-alkali glass fiber, plastic and other organic polymer. It is produced through molding, and during the production, plastic, wood dust, glass fiber and polymer additive are mixed homogeneously in material mixer and screw extruder, weighed, molded in mold and pressed with press. The tray has the advantages of light weight, high strength, high temperature resistance, high toughness, high corrosion resistance, etc. and may be used widely.

The invention discloses environment-friendly antibacterial sponge and a preparation method thereof. By adopting a nano Ag-Zn/chitosan antibacterial agent, the defects of easy ageing and color change as a result of active chemical properties of the singly used nano silver antibacterial agent are overcome. By adding a nano silver-zinc compound antibacterial agent into sponge, the sponge is better insterilizing effect and higher in stability. The used components are green and environment-friendly degradable material, a prepared product is also more green and environment-friendly, has good biocompatibility and is harmless to human body in preparation and application processes.

The invention relates to the technical field of unit heat supply, in particular to a direct high back pressure heat supply system of an indirect air cooling unit. The direct high back pressure heat supply system comprises a condenser and is characterized in that recycled water pipelines in the condenser are uniformly divided into two separate parts: on one side, a water inlet pipe communicates with a heat supply network water return pipe, and a water outlet pipe communicates with a heat supply network water heater by virtue of a heat supply network circulating pump; on the other side, the water inlet pipe communicates with an indirect cooling tower through a frequency conversion circulating water pump, and the water outlet pipe communicates with the water inlet pipe of the indirect cooling tower. The direct high back pressure heat supply system is small in investment and simple in structure, takes effect quickly, and can realize operation under pure condensing and back pressure modes; in addition, in case that the heat supply network is abnormal, the unit can switch over two operational modes without halt to ensure operating safety of the unit.

The invention relates to a high temperature and high pressure resistant compensator. The high temperature and high pressure resistant compensator comprises an outer pipe arranged at the outer side ofa core pipe in a sleeving manner, wherein an annular passage is arranged between the outer tube and the core tube. The compensator further comprises a gland, a baffle ring, a ring-shaped boss, a fixedpart, an inflation type O-shaped metal seal ring, a C-shaped metal seal ring filled with ceramic fibers and a wire mesh dustproof seal ring. According to the movement characteristics and working conditions of a pipeline-based axial compensator, firstly the high-temperature resistant inflation type O-shaped metal seal ring and the C-shaped metal seal ring filled with the ceramic fibers are combined to seal the structure, and then the dustproof structure is used for protecting a sealing interface, so that the traditional packing seal and nonmetal sealing ring combined sealing is replaced, and the difficult problem that a traditional compensator ages and needs to be maintained at fixed periods is solved; and the high temperature and high pressure resistant compensator has long service life and high reliability.

The invention relates to an integral plug-in valve core assembly for a hand-operated direction valve. A plug (1) consists of a left cavity (11), a right cavity (13) and a groove (12) along the circumference of the right cavity (13), which are communicated axially and sequentially; the plug (1) is rotationally connected with a valve bush (2) by a steel ball (11); the valve bush (2) is connected with a high-pressure valve bush (9) by a steel wire key (7); a valve seat (6) is arranged at a connecting part between the valve bush (2) and the high-pressure valve bush (9); the valve seat (6) and a valve core (5) form linear sealing; a spring (8) is mounted on the external circumference of the valve core (5) in a sleeving manner; a valve rod assembly and the valve core (5) are mounted on the left side and the right side of an inner cavity formed by the valve bush (2) and the high-pressure valve bush (9) respectively; and sealing rings (13) are mounted at the left ends of the valve rod assembly and the valve core (5) in a sleeving manner. The integral plug-in valve core assembly adopts floating integral plug-in valve design, is more compact in structure, smoother in liquid way, more reliable in sealability, and quick to assemble, and facilitates underground replacement and maintenance.

The invention discloses an electric-working abdicating and unloading linkage permanent-magnet-drive vertical type pumping unit and belongs to the novel field of electromechanical integration application. The pumping unit comprises a stander which is arranged on a stander base and is moved through an electric-working abdicating device, a drive device which is arranged on a top platform of the stander and is used for connecting a motor with an electromagnetic brake, a speed reducer and a drive wheel in series through a permanent magnet coupler, an unloading auxiliary device and an intelligent controller which is arranged in a control cabinet on the lower part of the stander, wherein a travel of the intelligent controller is controlled through a sensor; a drive rope is arranged in rope slots formed in two axial sides of the drive wheel; one end of the drive rope is used for hanging a sucker rod, and the other end of the drive rope is used for hanging a balance weight with an anti-falling device; a load-loss protecting and slip preventing steel wire rope is fixed in a rope slot in the axial middle part of the drive wheel, and the other end of the load-loss protecting and slip preventing steel wire rope is connected with the balance weight with the anti-falling device. The pumping unit has the advantages of reducing the cost, improving the efficiency and saving energy along with environment friendliness, safety, reliability, intelligence and high efficiency and can be widely applied to oil extraction and other frequent-reversing lifting work of the vertical type pumping unit.

The invention discloses a method for preparing a matrix-induced autologous bone mesenchymal stem cell composite scaffold. The method specifically comprises the steps of preparing bone marrow suspension; taking peripheral blood of a patient and putting the peripheral blood of the patient in a blood bag; preparing autoserum; obtaining target cells; adding 15 ml DMEM high glucose culture medium to the target cells, inoculating a T25 cell culture bottle with the target cells, and placing the T25 cell culture bottle in an incubator for culture; rinsing the cells twice with PBS solution; adding the DMEM high glucose culture medium into the culture bottle dropwise to stop digestion; obtaining cleaned sediment; inoculating the cell culture bottle with the cells for continuous culture; conducting passage three times; adding trypsin-EDTA solution into the culture bottle; washing the cells three times with PBS; conducting cell resuspension; placing a sterile pig source I/III type collagen membrane in a sterile plastic culture dish, and soaking the membrane in the DMEM high glucose culture medium for one night; and dropping cell suspension onto the pig source I/III type collagen membrane, and conducting culture for 3 days. The method has the advantages of being high in treatment precision and the like.

The invention discloses an environment-friendly high-strength ultraviolet-cured acrylate pressure-sensitive adhesive and a preparation method thereof, relates to an acrylate pressure-sensitive adhesive and a preparation method thereof, and aims to solve the problems that a large amount of solvent is used in the preparation process of the existing solvent type pressure-sensitive adhesive to pollutethe environment and the prepared pressure-sensitive adhesive is low in strength. The pressure-sensitive adhesive is prepared from a nano-modified urethane acrylate oligomer, an active diluent, an adhesion promoter and a photoinitiator. The preparation method comprises the following steps: 1, weighing; and 2, sequentially mixing the reactive diluent, the nano-modified urethane acrylate oligomer, the photoinitiator and the adhesion promoter. When the nano-modified urethane acrylate oligomer is synthesized, hydroxyl-containing nanoparticles are introduced to participate in the reaction, and theadhesion promoter is introduced so that the peel strength is obviously improved. The environment-friendly high-strength ultraviolet-cured acrylate pressure-sensitive adhesive can be obtained.

The invention provides a water supplement and drainage control method for a hanging board and sunshade board combined support slope greening structure. The water supplement and drainage control methodinvolves a hanging board fixed to a slope, the hanging board is anchored to the slope through a plurality of anchor rods, a sunshade board is anchored to the top of the slope, a plurality of groovesare formed in the hanging board, and water storage tanks are installed at the positions of the grooves. A water supplement and drainage pipe penetrates into the hanging board and is communicated withthe water storage tanks, the sunshade board comprises two metal boards with holes, and the two metal boards are arranged on the top layer and the bottom layer respectively; a pressure plate is fixed to the inner side wall of the metal board on the top layer, springs are fixed to the bottom of the inner wall of the pressure plate, the bottoms of the springs are fixedly provided with an opening-closing plate, and the bottom of the opening-closing plate is provided with the metal plate on the bottom layer; soft water drainage pipes are communicated between the pressure plate and the opening-closing plate. The water supplement and drainage control method has the advantages that construction is convenient, fewer damage factors exist, water drainage and supplement can be facilitated, and later maintenance is facilitated and reduced.

The invention discloses a composite metal heat-preservation layer filled with shielding materials at two sides. The composite metal heat-preservation layer comprises a heat preservation outer box, andinner-side neutron shielding layers, outer-side neutron shielding layers, reflecting metal foil sheets, an inner-side gamma shielding layer and an outer-side gamma shielding layer which fill the heatpreservation outer box, wherein the neutron shielding layers and the gamma shielding layers are inorganic shielding materials with metal characteristics; the filling sequence on the thickness sectionof the heat preservation layer is as the follows in sequence: an inner shell plate of the heat preservation outer box, the inner-side neutron shielding layer, the inner-side gamma shielding layer, the metal reflection foil sheets, the outer-side gamma shielding layer, the outer-side neutron shielding layer and an outer shell plate of the heat preservation outer box; and the metal reflection foilsheets are in a corrugated shape of forward-reverse double ball sockets which are vertically and horizontally arranged at regular intervals, or a regularly changed forward-reverse triangular corrugated shape or a chocolate corrugated shape, wherein two adjacent layers of the metal reflection foil sheets are stacked in a back-to-back staggered mode that the top point of one forward ball socket faces the top point of one corresponding reverse ball socket. The invention provides the composite metal heat-preservation layer with a heat-preservation and heat-insulation function and a radiation shielding function, and the composite metal heat-preservation layer can be used in a high-temperature radiation environment for a long time without needing of replacement.

The invention relates to waterproof coating for underground construction, which comprises a first layer, a second layer and a third layer, wherein a coating formula of the first layer comprises A: high-grade cement, sand and quartz powder, B: emulsion powder accounting for 20%-25% of cement mass, C: an accelerating agent accounting for1.5%-2% of the cement mass, and D: a reinforcing agent accounting for 2%-2.5% of the cement mass; a coating of the second layer adopts one-component polyurethane; and a coating of the third layer adopts a cross-linking type polymer cement waterproof coating. According to the waterproof coating for the underground construction, the first layer can achieve anti-permeability and leakage stoppage effects in shorter time and plug capillary channels completely; the second layer has excellent elongation and a seamless integrated-film-formation waterproof function, and plugs water from leaking out completely; and the third layer is a protective layer, overcomes the defects that the second layer is prone to scratch, aging and artificial damage and the like, improves the strength of the whole waterproof system, and guarantees the durability of the system.

The invention discloses an environment-friendly waterproof material which is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of 3, 6-dibromo-9-vinyl carbazole/bisphenol S polycondensate, 15-20 parts of vinyl-terminated polyurethane prepolymer modified coal pitch, 10-15 parts of vinyl-terminated nitrile rubber, 3-6 parts of hyperbranched polysiloxaneand 0.07-0.1 part of initiator. The invention also provides a preparation method thereof. The environment-friendly waterproof material disclosed by the invention is good in comprehensive performance,remarkable in waterproof effect, good in performance stability, weather resistance and high and low temperature resistance, and relatively small in environmental pollution.

The invention discloses an environment-friendly waterproof coating, which is characterized by being prepared from the following components in parts by weight: 30-40 parts of natural asphalt modified vinyl polyurethane, 20-30 parts of vinyl modified hyperbranched polysulfonamide, 10-15 parts of epoxy group POSS, 3-5 parts of hyperbranched polyborate, 0.5-1.5 parts of an initiator, 1-3 parts of a dispersing agent, 0.5-1.5 parts of a coalescing agent and 5-10 parts of a nano filler. The invention also provides a preparation method of the environment-friendly waterproof coating. The environment-friendly waterproof coating disclosed by the invention is good in environment-friendly performance, remarkable in waterproof effect, good in mechanical property, weather resistance, corrosion resistance, flame retardance and high and low temperature resistance, and large in adhesive force with a base material.

The invention relates to a desk-type totally-closed semi-automatic constant-temperature rapid environment-protecting energy-saving freezing microtome. A freezing chamber is arranged in a box body and internally provided with a host mechanism, and a driving mechanism is arranged outside the freezing chamber; a left vertical linear roller bearing and a right vertical linear roller bearing are respectively embedded at both sides of the back of a host bracket, and a freezing head moves up and down between the left vertical linear roller bearing and the right vertical linear roller bearing; screws are arranged below the host bracket which is connected with a step motor by screw rods, and the freezing head is arranged behind a freezing knife and moves back and forth with the host bracket. The invention has the advantages of smart conception, reasonable design, selected abroad brands of parts made of high-quality materials, precisely processed and assembled key parts, random rapid freezing whenever powered on, energy and time saving, no noise, complete performance, stability, reliability and simple operation and is suitable for being used in medical and scientific research departments and hospitals.

The invention discloses nuclear-grade equipment and a single-side shielding material filling insulation layer for pipelines. A insulation outer box, a neutron shielding layer, a gamma shielding layerand metal reflective foils are included, the neutron shielding layer, the gamma shielding layer and the metal reflective foils are contained inside the insulation outer box, and the neutron shieldinglayer and the gamma shielding layer are both made of an inorganic shielding material with metallic properties; the sequence of filling in the thickness section of the insulation layer is an inner shell plate of the insulation outer box, the neutron shielding layer, the gamma shielding layer, the metal reflective foils and an outer shell plate of the insulation outer box; and the metal reflective foils are in shapes of waves of positive and negative circular cone bosses regularly arranged vertically and horizontally at intervals, and every two adjacent layers of the metal reflective foils are stacked in a back staggered manner with the peak of one positive and negative circular cone boss abutting against the peak of the other positive and negative circular cone boss. The composite metal insulation layer with the insulation and heat isolation functions and the screen radiation shielding function is provided, the insulation layer can be used in a high temperature radiation environment fora long time without replacement, and the requirements of nuclear grade equipment and the insulation layer for the pipelines are met

The invention discloses a high temperature sensitive ceramic armored high-temperature thermocouple and a manufacture method thereof. The thermocouple is composed of a conjunction box, a cover casing, terminals, a protective bushing, a sealing strip, an insulating layer, a lead wire, a thermocouple wire and insulators; the protective bushing of a cylindrical hollow structure is made of alumina based high temperature ceramics, a carbon fiber basket is integrated in a ceramic body of the protective bushing, a central wire bundle of the carbon fiber basket extends out of the center of the bottom of the cylindrical hollow structure, a work end is connected with the exceeding end of the carbon fiber basket, and the center of an opening end is connected with the lead wire; the lead wire is formed by braiding silicon carbide based ceramic fibers; the sealing strip is made of a high-temperature adhesive HN-767A; an enclosed space formed by the protective bushing, the high temperature adhesive and the conjunction box is of a vacuum environment ranging from 1Pa to 10Pa; and the thermocouple wire is a nickel chromium silicon-nickel silicon thermocouple wire. The thermocouple of the invention can replace an expensive platinum rhodium thermocouple, the economic performance and the reliability are high, and the service life is long.

A multifunctional composite powder of natural fibres and brucite, its modifier and the process for preparing its composite mother particles are disclosed. Said flame-retarding, antibacterial and reinforcing composite powder is prepared through superfine pulverizing for brucite, suspension atomizing of modifier, and directional loosening. Its modifier is composed of coupling agent and antibacterial trigger. The process for preparing said mother particles includes mixing modifier, antibacterial material, high-molecular organic polymer and viscosity decreaser, plasticizing, extruding out and cutting to become particles.

The invention discloses a frozen buckwheat bean curd skin and a production method thereof. The frozen buckwheat bean curd skin consists of the following raw materials in parts by weight: 30 to 50 parts of rice flour, 25 to 45 parts of wheat flour, 15 to 20 parts of buckwheat flour, 2.5 to 10 parts of bean flour, 0.05 to 0.5 part of edible gum and 90 to 220 parts of water. The frozen buckwheat bean curd skin obtained by the method has long shelf life, is not pasted after being rehydrated, is delicate in mouthfeel, smooth and soft, and has the specific fresh scent of buckwheat and a certain health-care function. Compared with the traditional process, the production process disclosed by the invention has the advantages that the quality of product produced through the method is greatly improved and the industrialized degree is greatly improved.