51results about How to "Improve destruction efficiency" patented technology

A system for disinfecting a fluid containing microorganisms or chemical contaminants includes a plurality of photocatalyst surfaces secured to a solid surface upon which a fluid to be disinfected contacts. A structure for removing a portion of the photogenerated electrons is in electrical contact with the photocatalyst layer, wherein an electron-hole recombination rate involving the photogenerated electrons and holes is reduced, thus increasing the removal rate of microorganisms or chemical contaminants from the fluid. The system can include a source of photons having a wavelength corresponding to a band gap energy of the photocatalyst to illuminate the photocatalyst layer. The invention can be used in air supply registers of a heating, ventilating and air conditioning system, or in air ducts, or used to disinfect wall coverings, floor coverings, envelopes, packages, and clothing articles.

A novel process neutralizes airborne pathogens by using microwave powered ultra violet light combined with catalyzed filters and impingement media made of a layer of Filtrite filter media or comparable brand filter media covering an aerogel blanket. The geometric design maximizes the efficiency of the UV light, and impingement of pathogens on the Filtrite filter media/aerogel blanket catalyzed surfaces. The system can be utilized for preventing sick building syndrome (SBS), to prevent the spread of airborne diseases in hospitals, biohazard research laboratories, food and pharmaceutical processing facilities, and biological weapons storage facilities. It can also be used in HVAC systems to minimize the contamination caused by a biological terrorist attack.

A method of burning off accumulated contaminants from heat sink media of a regenerative oxidizer having a plurality of segments containing media arranged around a central axis and a rotary valve which includes repeatedly rotating the rotary valve 180 degrees to alternatively direct waste gas through a first plurality of segments, direct the hot gas through a second plurality of segments and purge gas through a third segment to burn off the contaminants, then indexing the rotary valve one segment and repeating the burn-off process of all segments.

The invention belongs to the technical field of syringe destruction devices, and in particular relates to a rotary syringe destruction device. The device comprises a hollow base and a rotating cylinder in which a syringe is inserted, the inner walls of two side of the lower part of the rotating cylinder are integrally formed with hinge plates, a hinge shaft is arranged at the outer sides of the hinge plates, and the hinge shaft is fixedly equipped with a gear; a hinge cylinder is arranged at the inner walls of two sides of an installation seat, and the hinge shaft is arranged in the hinge cylinder in a pass-through manner; a sliding seat is fixedly installed at the inner wall of one side of the installation seat, a button is slidingly installed in the sliding seat, a rack is slidably installed at the position, located above the button, in the sliding seat, and the rack meshes with the gear; and a saw blade is installed on the output shaft of a motor, the saw blade is located in the installation seat and is located on one side of the rotating cylinder, and the central plane of the saw blade is on a same plane as a central axis of the rotating cylinder. The device aims to solve the problems that a current destruction device only can destruct a needle and a syringe without destroying a push rod and a rubber piston in the syringe, and has low destruction efficiency due to structural defects.

The invention discloses a method of cold water fracturing, and belongs to the technical field of oil-gas well engineering. The method of cold water fracturing comprises the steps that S1, fracturing liquid is prepared, specifically, the fracturing liquid which has no precipitation of solid materials in the state of 1-5 DEG C and with a stable colloid structure is selected; S2, the temperature of the fracturing liquid is lowered, specifically, ice blocks are added into the fracturing liquid in the S1 so that temperature cooling treatment can be conducted; S3, formal fracturing is conducted; andS4, well covering is conducted, specifically, the fracturing liquid is poured into a stratum, after the fracturing liquid temperature does not change, fracture liquid is recycled. According to the method of the cold water fracturing, improvement is conducted in terms of water power fracture, the influence of temperature on racks are brought into traditional water power fracture, the fracture is conducted through the cold water, the rocks are in the action of solid flow mechanics and are further subjected to congelation damage, crack tip stress and the rock inner stress supplement each other to reach the effect of optimization of rock breaking.

The invention discloses a data destruction method, device and equipment and a readable storage medium. The method disclosed by the invention comprises the following steps: if a data destruction instruction is received, determining a storage position of to-be-destructed data according to the data destruction instruction; processing the target data by using a Knuth-Durstenfeld Shuffle algorithm to obtain disordered data, and performing overwriting operation on the storage position by using the disordered data; and processing the disordered data by using a hash direct remainder method to obtain atarget hash value, and performing overwriting operation on the storage position again by using the target hash value. The data destruction method and device can improve the data destruction efficiency, reduce the possibility that the destructed data is recovered, and improve the security of the destructed data. Correspondingly, the invention also discloses a data destruction device and equipmentand a readable storage medium, which also have the above technical effects.

A positive type radiation-sensitive resin composition suitable as a chemically-amplified resist sensitive to active radiation particularly to deep ultraviolet rays represented by a KrF excimer laser, an ArF excimer laser, or an F₂ excimer laser, excelling particularly in a process margin for the KrF excimer laser is provided. The positive type radiation-sensitive resin composition comprises a photoacid generator and an acid-labile group-containing resin which is insoluble or scarcely soluble in alkali, but becomes alkali-soluble by the action of an acid, wherein the photoacid generator is a mixed photoacid generator containing a photoacid generator of the following formula (1) and a photoacid generator which is at least one compound selected from sulfonyloxyimide and disulfonyldiazomethane.

The invention discloses a small-equivalent waste propellant flash burning treatment device. The safety treatment problem of waste propellants, used propellants, incomplete propellants and degraded propellants which are generated in the propellant and explosive scientific researching and trial-manufacturing processes is solved. The small-equivalent waste propellant flash burning treatment device mainly comprises a feed conveying device 1, a feeding port 2, an incinerator body 3, an air compressor 4, an igniter 5, an incineration disc 6, a base 7, an exhaust port 8, a feed cooling water inlet 9,a feed cooling water outlet 10, a one-way stop valve 11, an armoured door 12, a hopper13, an incinerator body cooling water inlet 14 and an incinerator body cooling water outlet 15. The small-equivalent waste propellant flash burning treatment device has the advantages that the structure is simple, the safety degree is high, the construction using cost is low, and automatic feeding and long-distance ignition can be achieved, and the small-equivalent waste propellant flash burning treatment device is suitable for airtight safety destruction of the waste propellants in scientific research testsand trial-manufacturing and production processes in the field of propellants.

The invention discloses a destroy system for vehicle registration plates. The destroy system for the vehicle registration plates comprises a feeding data acquisition and conveying unit, a cutting unit, a discharge data acquisition and conveying unit and a display control unit, wherein the display control unit comprises a central controller, as well as a display and a data input device which are connected with the central controller separately; the feeding data acquisition and conveying unit comprises a horizontally-arranged feeding conveying belt, and a feeding data acquisition device; the discharge data acquisition and conveying unit comprises a horizontally-arranged discharge conveying belt and a discharge data acquisition device; and the feeding conveying belt, the cutting unit and thedischarge conveying belt are arranged on a rack. The destroy system for the vehicle registration plates is capable of carrying out fully-automatic destroy on the vehicle registration plates needing tobe destroyed; meanwhile, complete characters after cutting are avoided; the destroy system for the vehicle registration plates has the advantages of being time-saving and labor-saving; and a destroyoperation process is well documented. The invention further discloses a corresponding destroy method for vehicle registration plates.

The invention discloses a magnetic hard disk sequence code recognition method based on machine vision. The method comprises the steps that step 1, preprocessing a magnetic hard disk sequence code picture; step 2, carrying out character segmentation of a sequence code, and carrying out HOG feature extraction on segmented characters; and 3, constructing an identification model by adopting a supportvector machine (SVM) algorithm, and identifying the magnetic hard disk sequence code picture.

The invention relates to the technical field of destroying treatment for gas generators, and discloses a rapid destroying device for gas generators of automobile air bags. The device comprises an explosion-proof box. An explosion-proof cylinder is disposed in the explosion-proof box. A rotating cylinder driven by a motor is disposed in the explosion-proof cylinder. Axes of the explosion-proof cylinder and the rotating cylinder are distributed horizontally. An annular cavity is disposed between the rotating cylinder and the explosion-proof cylinder. A feeding hopper is disposed on the explosion-proof box and at one end of the explosion-proof cylinder. The discharging end of the feeding hopper is communicated with the annular cavity. A discharging hopper is disposed at the bottom of the explosion-proof box and at the other end of the explosion-proof cylinder. The lower end of the discharging hopper is communicated with the outside. An electric heater is disposed in the rotating cylinder. The outer side surface of the rotating cylinder is provided with a spiral material pushing belt distributed along the annual cavity. The upper side surface of the explosion-proof cylinder and the top surface of the explosion-proof box are provided with a plurality of gas discharging holes. Accordingly, the beneficial effects of the device are that: sputtering of gas generator shells in a destroying process is prevented, destroying is safer, and a destroying efficiency is high.

A lottery ticket destruction apparatus includes a housing of flip-turn design convenient to open for maintenance, a motor mounted in the housing, a transmission gear set mounted on the outside of the housing and coupled to the motor, a set of sheet-transfer rollers rotatable by the transmission gear set at a low speed to flatten inserted lottery tickets, a set of rotary cutters disposed below the set of sheet-transfer rollers and rotatable by the transmission gear set at a middle speed to cut an inserted series of lottery tickets into three narrow elongated pieces, and a set of pull-and-push rollers disposed below the set of rotary cutters and rotatable by the transmission gear set at a high speed to stretch the cut pieces of the series of lottery tickets into fragments.

The invention relates to a program-controlled ammunition over-burning system. The program-controlled ammunition over-burning system includes a destruction furnace with a cavity structure, a drilling machine for drilling holes in waste ammunition, a smoke exhaust passage, a monitoring device, and a heating device; and the destruction furnace is provided with a feeding inlet, a discharge outlet, andan explosion venting opening, the drilling machine is installed in the feeding inlet, the discharge outlet is provided with a sealing door, the explosion venting opening communicates with an explosion venting well through an explosion venting channel, the explosion venting channel communicates with the smoke exhaust passage, and the monitoring device and the heating device are mounted on a housing of the destruction furnace. The program-controlled ammunition over-burning system has the advantages of high safety and high destruction efficiency.

The invention belongs to the technical field of syringe destroying devices, and particularly relates to a disposable syringe destroyer. The destroyer comprises a shell, two supporting columns are integrally formed on one side of the shell, a sliding cylinder is mounted between the two supporting columns in a sliding manner, the sliding cylinder is obliquely mounted between the two supporting columns, a pressing block penetrates through a second through groove and is positioned in a second vertical groove, the second vertical groove is internally provided with a button which is slidably mountedbelow the pressing block, the second vertical groove is provided with a compression spring below the button, the upper end of the pressing block is fixedly provided with an extension spring in the second vertical groove, each supporting column is detachably provided with a fixed block on the upper portion of the second vertical groove, the fixed block is fixedly connected to the extension spring,a motor is fixedly installed on the supporting columns, the button is electrically connected to the motor, a cutting blade is fixedly installed on an output shaft of the motor, and the central planeof the cutting blade and the central axis of the sliding cylinder are located on the same plane. The invention aims to solve the problems that existing destroyers has structural defects, can only destroy a needle head, cannot destroy a needle cylinder, and have low destroying efficiency.

The embodiment of the invention provides a data destruction method and system and relates to the technical field of data security. The method comprises marking input business data to generate mark information corresponding to the business data; according to the mark information, identifying the business data to determining a corresponding data state of the business data; if the data state is abnormal, freezing the business data according to preset freezing strategy information to acquire frozen business data; performing destruction identification on the frozen business data to determining datato be destructed; destructing the data to be destructed. The data destruction method and system can automatically and intelligently determine the data to be destructed, reduce the misjudgment rate ofdata destruction and improve the data destruction efficiency.

The invention provides a tunnel boring machine cutterhead for assisting rock breaking through a high-pressure water jet. The cutterhead comprises a cutterhead body, a first hob assembly, a second hobassembly and a scraper, wherein the first hob assembly, the second hob assembly and the scraper are arranged on the cutterhead body. Each of the first hob assembly and the second hob assembly comprises a rotating shaft and a plurality of hobs arranged on the rotating shaft. The scraper is plowshare-shaped, a spray pipe used for introducing high-pressure water is arranged on the cutter head body and located below the scraper, a pair of spray heads is arranged at the end of the spray pipe, and the included angle between the spray direction of the spray heads and the surface of the cutter head body is 30 degrees. The rotating areas of the first hob assembly and the second hob assembly are intersected. The first hob assembly is provided with hobs which move along the spraying track of each spray head on the tunnel face. According to the cutterhead, the scraper, the hob and the high-pressure water jet are mutually combined to efficiently crush the tunnel face in the tunneling process, so that the service life of the scraper and the hob can be prolonged, and the tunneling efficiency of the tunnel is greatly improved.