Method for switching different operation systems by computer

The invention relates to a method for switching different operation systems by a computer. Different operation systems are switched by the computer. The method comprises the steps of: executing a program for switching to a second operation system in a first operation system, executing a recovery program of backup data of a BOIS (Basic Input/Output System), reading computer system information which is backed up in a memorizer of the computer and is in an initial state in the BOIS, and setting the computer to restore the computer to the initial state in starting-up, calling and executing an interrupt service in the BOIS to seek a loader of the second operation system, loading the second operation system into the memorizer by the loader, and starting and entering the second operation system.

Ultra-long high-inclination curtain wall oblique post and installation method thereof

The invention relates to an ultra-long high-inclination curtain wall oblique post which comprises an upper straight steel pipe column, a cone steel pipe column body, an inverted cone steel pipe column foot, a welding ball and a steel pipe bracket. The cone steel pipe column body is fixed on the inverted cone steel pipe column foot; the welding ball is connected with the upper straight steel pipe column and the inverted cone steel pipe column foot; the steel pipe bracket is welded on the periphery of the welding ball and at the upper part of the upper straight steel pipe column. In the invention, the cone steel pipe column body can regulate the inclination of the upper straight steel pipe column by the welding ball under the condition of the consistent inclination so as to implement modeling torsion of a curtain wall; the uniform style of the curtain wall is kept; the modeling of the curtain wall is more changeable. The invention also discloses an installation method of the curtain wall ...

Chemical corrosion resistance composite insulator rubber compound and preparation method for modified methyl silicone resin

The invention discloses a rubber compound for preparing a chemical corrosion resistance composite insulator, which is prepared by mixing the following main raw materials in parts by weight: 100 parts of crude silicone rubber, 1 to 10 parts of epoxy resin E-20 modified methyl silicone resin, 18 to 40 parts of modified fumed silica, 1 to 15 parts of a silane coupling agent, 90 to 180 parts of active aluminum hydroxide powder and 0 to 1.2 parts of triethanolamine, wherein the silane coupling agent is one or the mixture of an A-151 silane coupling agent, an A-172 silane coupling agent and a KH-560 silane coupling agent; the crude silicone rubber is methyl vinyl silicone rubber containing 0.04 to 0.35 percent of vinyl; the epoxy resin E-20 modified methyl silicone resin comprises 40 to 75 percent of epoxy resin. The invention further discloses a preparation method for the rubber compound. The test shows that the rubber compound has excellent chemical corrosion resistance and the composite insulator ...

Installing method of arch structure with skin

The invention discloses an installing method of an arch structure with a skin. According to the method, the skin in the arch structure with the skin is an arc-shaped skin. During the installation, an installed structure is used as a reliable fixing object to perform pulling joint. The installing method has the advantages that a computer emulation technology is used; the problem of space installation and positioning difficulty of the arch structure with the skin is solved; and the problem that a temporary support cannot be directly used for supporting and carrying the arch structure with the skin for auxiliary installation is solved.

Method for postion control by adopting brushless dc motor for twisting cam mechanism of automatic bobbin winder

The present invention relates to a method for making position control by adopting brushless D.C. motor in yarn joiner cam mechanism of atuoamtic bobbin winder. The whole control system utilizes the controller of yarn joiner cam mechanism to control rotation of brushless D.C. motor, said brushless D.C. motor can be used for driving reduction gear box, and said reduction gear box can be used for driving yarn joiner can mechanism which can be forward or backward rotated, a mechanical zero-position sensor is set on the cam mechanism, and the signal of said sensor can be transferred into the controller of the above-mentioned can mechanism, and is used as reference point of whole control system, and said controller can be used for collecting signals sent by three Hall sensors in the brushess D.C. motor and controlling the position of cam mechanism by using said signals.

La-Sn co-doped bismuth titanate-based ferroelectric film and preparation method thereof

The chemical formula of the ferroelectric film material is Bi (4-x) LaxTi (3-y) SnyO12, x is more than 0 and less than or equal to 1, and y is more than 0 and less than or equal to 0.1. The preparation method comprises the steps of sol preparation, precursor film preparation, rapid heat treatment and ferroelectric film preparation. According to the method, bismuth nitrate hydrate, tin nitrate, lanthanum nitrate hydrate and tetrabutyl titanate are taken as precursors, citric acid is taken as a solvent, EDTA (Ethylene Diamine Tetraacetic Acid) is taken as a chelating agent to prepare a precursor solution, and the smooth and compact Bi (4-x) LaxTi (3-y) SnyO12 film is prepared through rapid heat treatment after spin coating. Compared with Bi4Ti3O12 and Bi4-xLaxTi3O12 films, the film has the advantages that the ferroelectric remanent polarization value and the anti-fatigue performance are remarkably improved, the preparation process of the film is simple, and expensive transition metal organic ...

Unsupported installation method for bidirectional tilting great-section box latticed columns

The invention discloses an installation method for bidirectional tilting great-section box latticed columns. By taking a structure as a reliably laced fixed attachment structure, two side tilting latticed columns are connected and fixed by using a latticed bracket in the structure, so that a stable triangular structure system is formed. By means of a computer simulation technology, the method disclosed by the invention solves the problem that bidirectional tilting great-section box latticed columns are difficult to install and position and the installation quality is not easy to guarantee. The method disclosed by the invention is strong in operability and high in safety, ensures the installation quality of bidirectional tilting great-section box latticed columns, enhances the installation efficiency of bidirectional tilting great-section box latticed columns, effectively shortens the construction period and saves the cost, and therefore, the method has good economic and social benefits.

Automobile exhaust carbon deposition prevention treatment device

The invention relates to the technical field of automobile accessories, in particular to an automobile exhaust carbon deposition prevention treatment device which comprises a treatment cylinder assembly, a static electricity generation assembly and a wall scraping assembly, the treatment cylinder assembly is connected into an exhaust pipeline and provided with a static electricity adsorption cavity, and the static electricity generation assembly is arranged outside the treatment cylinder assembly; the electrostatic generation assembly is arranged outside the treatment cylinder assembly, the wall scraping assembly is arranged on the inner wall of the electrostatic adsorption cavity, and in the working state, the wall scraping assembly scrapes the inner wall of the electrostatic adsorption cavity and then discharges scraped objects out of the treatment cylinder assembly. According to the tail gas treatment device, the treatment barrel assembly is arranged, so that an electrostatic adsorption ...

Tail gas treatment device with self-heating water removal function

The invention relates to the technical field of tail gas treatment, in particular to a tail gas treatment device with a self-heating water removal function. Comprising an exhaust pipe and a condensate water treatment module coaxially arranged at the air outlet section of the exhaust pipe, and the condensate water treatment module is used for conducting evaporation treatment on condensate water discharged through the exhaust pipe; a flow guide hole communicated with the interior of the condensate water treatment module is further formed in the air outlet end of the exhaust pipe. The condensate water treatment module further comprises a treatment cylinder, and an annular cavity used for treating condensate water is formed between the treatment cylinder and the exhaust pipe. A treatment module corresponding to the flow guide hole is further arranged at the bottom of the inner wall of the treatment barrel and used for evaporating condensate water to dryness; the condensate water in the exhaust ...

Braced system of steel construction building

The utility model discloses a braced system of steel construction building, include a set of C type post and set up at a set of support of a set of C type post outlying section of thick bamboo, wherein the central longitudinal axis symmetrical arrangement of building is followed to a set of C type post, C type post all sets up on the floor with a support section of thick bamboo, the floor periphery is equipped with curtain wall columns and a set of curtain sways the post. Its is rationally distributed, for room lid provides vertical supporting and lateral stiffness, sets up simultaneously andsupports a section of thick bamboo and support column, provides reliable supporting for main building center room lid.

Process method for producing crude tin by using sodium stannate leaching waste residues

The invention discloses a process method for producing crude tin by using sodium stannate leaching waste residues, and relates to the technical field of crude tin production. The method comprises the following steps: waste residue treatment: carrying out purification treatment on sodium stannate leaching waste residues, removing completely unavailable impurities, carrying out crushing treatment on the purified waste residues, and reducing the volume of a single waste residue, and waste residue soaking: putting the obtained waste residues into a soaking solution for soaking and dissolving, so as to obtain a tin-containing compound solution. According to the device, completely unavailable impurities can be removed and the volume of a single waste residue can be reduced by purifying and crushing the waste residue, the subsequent processing efficiency is improved, and the tin-containing compound solution can be analyzed by putting the tin-containing compound solution into the detection device ...

Temperature measurement control device for calcium carbide method PVC converter

The utility model relates to the technical field of calcium carbide method PVC production. The temperature measurement control device is used for the calcium carbide method PVC converter. The device comprises a converter and a control cabinet, the top of the converter fixedly communicates with a raw material gas pipeline; a feed gas control valve is fixedly mounted on the feed gas pipeline, a thermocouple is fixedly mounted at the top of the converter, the upper portion of the converter is fixedly communicated with a circulating water inlet pipeline, a first signal output end of the control cabinet is electrically connected with a signal input end of the feed gas control valve, and a second signal output end of the control cabinet is electrically connected with a signal input end of the circulating water inlet control valve. The device is reasonable and compact in structure; the device is simple in structure and convenient to use, can monitor the reaction temperature of each point in the ...

Stomach tube tail end fixator

The invention provides a stomach tube tail end fixator which comprises a barrel matched with a stomach tube. One end of the barrel extends and is provided with a semicircular buckle matched with the stomach tube through a connection plate. When the stomach tube tail end fixator is used, reflexed stomach tube sections are sleeved together with the barrel, the semicircular buckle is used for clamping the stomach tube sections, then the phenomenon that the stomach tube tail end disengages is avoided through dual guarantee, the structure is simple, the stomach tube tail end fixator is economical and practical; unhealthy phenomena are avoided, and reliability is improved. The stomach tube tail end fixator is lengthened through the arrangement of a connection section, a space is exposed in the reflexed sections of a stomach tube, and medical staff can conveniently conduct observation and treatment.

Screw and machining process thereof

The invention discloses a screw and a machining process thereof, and aims to overcome the defects that other objects are needed for locking of the screw, and the screw does not have the locking function. The anti-loosening screw comprises a screw head and a screw column, threads are arranged on the outer wall of the screw column, and a plurality of rows of anti-loosening grooves which are axially distributed are formed in the outer edge of the threads. The anti-loose groove is formed in the outer edge of the thread of the screw, the anti-loose groove plays an anti-loose role during fastening connection, and the anti-loose screw is particularly suitable for the anti-loose role of resin products and soft metal products. The anti-loosening grooves are formed in the threads, so that all the anti-loosening grooves form a three-dimensional spiral structure together, and torque distribution is more uniform in the thread screwing process. The screw has the anti-loosening function, other objects ...

Method and device for realizing single-point log-in and system thereof

The invention discloses a method for realizing single-point log-in, which aims to solve the problems of low safe reliability of data transmission and high working load of the portal server of the prior single-point log-in procedure which aims at the application system module which does not support portal authentication. The method comprises the following steps: the application server, on which the application system module that does not support portal authentication is positioned, is integrated with a proxy service module; the proxy service module receives information, which is transmitted by the portal server and requests to log in the application system module so as to facilitate the identity authentication of the user, obtains information which is used for the application system module to authenticate the identity of the user and is corresponding to the received information according to the recorded mapping relation, and transmits the obtained information to the application system module ...

Method and device for realizing single-point log-in and system thereof

The invention discloses a method for realizing single-point log-in, which aims to solve the problems of low safe reliability of data transmission and high working load of the portal server of the prior single-point log-in procedure which aims at the application system module which does not support portal authentication. The method comprises the following steps: the application server, on which the application system module that does not support portal authentication is positioned, is integrated with a proxy service module; the proxy service module receives information, which is transmitted bythe portal server and requests to log in the application system module so as to facilitate the identity authentication of the user, obtains information which is used for the application system moduleto authenticate the identity of the user and is corresponding to the received information according to the recorded mapping relation, and transmits the obtained information to the application system module ...

Ultra-long steel component sliding, ejecting pushing system and sliding method thereof

The invention discloses an ultra-long steel component sliding, ejecting pushing system which comprises a sliding, ejecting and pushing device, a crawl device, a sliding support and a base. The sliding support is fixed on the base. The steel structure to be slid, ejected and pushed is fixed above the sliding support. The bottom of the crawl device is fixed on the base and the upper portion of the crawl device is connected with a connection portion of the sliding, ejecting and pushing device. A buckling portion of the sliding, ejecting and pushing device is fixedly connected with the bottom of the steel structure to be slid, ejected and pushed. According to the ultra-long steel component sliding, ejecting pushing system, the sliding device of the ultra-long ultra-heavy steel structure is simplified, the sliding distance goes accurate and large equipment is not needed. Sliding is performed through the simple sliding, ejecting and pushing device and the crawl device and especially, sliding ...

Method for postion control by adopting brushless dc motor for twisting cam mechanism of automatic bobbin winder

Opening sash of point-supported type curtain wall

The invention discloses an opening sash of a point-supported type curtain wall. The opening sash comprises a combined base frame and a movable open window. The combined base frame is formed by connecting a plurality of rod-shaped base frames end to end, the combined base frame is in a polygon shape, and the end-to-end connection position of every two adjacent base frames is fixed through a corresponding point supporting device on the point-supported type curtain wall. The movable open window comprises a combined opening frame and face plates arranged on the combined opening frame, the combined opening frame is formed by connecting a plurality of rod-shaped opening frames end to end, the shape of the combined opening frame is identical to that of the combined base frame, and the area of the combined opening frame is slightly smaller than that of the combined base frame. One opening frame on the combined opening frame is connected with one corresponding base frame on the combined base frame ...

Special detection equipment and detection method for hexagonal rod

Special detection equipment for hexagonal rods comprises a table plate, and the table plate is provided with a feeding assembly, a straightness and length detection assembly, a surface flaw detection assembly, a hardness detection assembly, a transfer assembly and a clamping and classified storage assembly; the feeding assembly is arranged at one end of the transferring assembly, and the clamping and classified storage assembly is arranged at the other end of the transferring assembly. In the moving process, various detection operations can be completed in sequence, finally classified storage is carried out, the structure is compact, and operation is convenient. The straightness and length detection assembly, the surface flaw detection assembly and the hardness detection assembly are sequentially arranged in the space between the feeding assembly and the clamping and classified storage assembly. The invention provides special detection equipment for hexagonal rods and also relates to a ...

Acetylene recovery device and method for recovering acetylene from waste sodium hypochlorite solution

The invention relates to the technical field of acetylene recovery methods and particularly relates to an acetylene recovery device and method for recovering acetylene from a waste sodium hypochlorite solution. The method for recovering acetylene from the waste sodium hypochlorite solution comprises the following steps of enabling the acetylene-containing waste sodium hypochlorite solution to enter a flash evaporation tank from a waste liquid inlet of the flash evaporation tank, resolving the acetylene-containing waste sodium hypochlorite solution in the flash evaporation tank, so as to obtain acetylene and a treatment solution, discharging acetylene from an acetylene outlet of the flash evaporation tank, and discharging the treatment solution from a lower liquid outlet of the flash evaporation tank. According to the method for recovering acetylene from the waste sodium hypochlorite solution and the acetylene recovery device, disclosed by the invention, acetylene can be effectively recovered ...

Ultrasonic detection device for geological survey stainless steel forgings

The invention is applicable to the technical field of ultrasonic detection, and particularly relates to an ultrasonic detection device for geological survey stainless steel forgings, the device comprises a bottom supporting mechanism, a lifting mechanism and a movable detection mechanism are mounted on the upper side of the bottom supporting mechanism, and the movable detection mechanism is arranged on the upper side of the lifting mechanism. A movable clamping mechanism is installed on the lifting mechanism, an ultrasonic flaw detector is installed on the upper side of one end of the bottom supporting mechanism, and the ultrasonic flaw detector is connected with a movable detection mechanism through a connecting line. The detection end can be driven to perform comprehensive movement detection on the surface of the stainless steel forge piece, automatic ultrasonic detection of the stainless steel forge piece is achieved, the detection end does not need to be manually held, the workload ...

Round cross-shaped column base and manufacturing method thereof

The invention discloses a round cross-shaped column base and a manufacturing method thereof; the round cross-shaped column base comprises a cross body, an external ring plate, a column baseboard, shearing resistant plates, a batten plate and stiffening plates, wherein the external ring plate is fixed on the exterior of the cross body; the column baseboard is fixed at one end of the cross body; the stiffening plate is fixed at the periphery of the cross body and is parallel to the axis of the cross body; the shearing resistant plates are arranged among the stiffening plates and fixed on the cross body; and the stiffening plates are fixed on the cross body. The invention also discloses the manufacturing method of the round cross-shaped column base. The round cross-shaped column base has ingenious structural design and has very strong weight carrying ability; the manufacturing method leads the manufactured round cross-shaped column base to be firm in a reasonable installation mode and realizes ...

C type support column of steel construction building

The utility model discloses a C type support column of steel construction building, including a set of main tributary dagger that sets up in opposite directions to reach a set of transverse column whosets up on a set of main tributary dagger and connect two main tributary daggers in opposite directions respectively, transverse column includes a set of transverse column and two a set of transversecolumn, a transverse column and the 2nd transverse column all are C shape to both C shape opening directions are unanimous, the 2nd transverse column is protruding in a transverse column, a set of main tributary dagger and a set of transverse column form the framework of C shape. Its its light in weight is convenient for build, its structural design is ingenious, has very strong bearing capacityand stability.

Building method and applications of living tumor tissue bank

The invention provides a building method and applications of a living tumor tissue bank. Tumor tissues of a cancerous patient subjected to an operation are transplanted to a part under the renal capsules of SCID (severe combined immunodeficient mice) and survive in the bodies of the mice for passage conservation, so that the living tumor tissue bank is obtained; the living tumor tissue bank means that based on single tumor tissue heterograft, numerous human body tumor tissues are conserved in animal bodies in a living tissue bank form for standby application; the living tumor tissue bank comprises transverse multiple tumors and various subtypes or various development phase of a certain longitudinal tumor. The living tumor tissue bank has multiple applications in the aspects of determining the personalized therapeutic schedule of the cancerous patient subjected to the operation, screening tumor specificities of anti-cancer drugs, and building animal models for human body cancer research.

Device for carrying out impurity removal treatment on crude brine for electrolysis and treatment method using same

The invention relates to the technical field of devices for carrying out impurity removal treatment on crude brine and provides a device for carrying out impurity removal treatment on crude brine for electrolysis and a treatment method using the same. The device comprises a crude brine baffling tank, a crude brine tank, a pressurizing vessel tank, a pretreater, a reaction tank, a brine buffer tank, a HVMTM filter, a refined brine baffling tank and a refined brine tank. The device and the treatment method have the beneficial effects that plenty of calcium and magnesium ions in the crude brine are firstly removed with sodium carbonate, and then the calcium and magnesium ions in the crude brine are further removed with phosphoric acid by utilizing the principle that the Ksp of calcium phosphate is smaller than that of calcium carbonate; the total content of the calcium and magnesium ions in the crude brine coming out of the HVMTM filter is reduced by a larger margin than that of the calcium ...

Method for recovering indium from waste target materials

The present application discloses a preparation method of an ionic rare earth leaching agent, which comprises the following steps: (1) domestication microorganisms with rare earth activated mineral powder culture medium to obtain a microbial suspension; (2) amplifying and culturing the microbial suspension and additives to obtain the amplified culture medium; and (3) mixing the modified sesbania gum with the amplified culture medium to obtain the ionic rare earth leaching agent. In the present application, the activated mineral powder is the active metal-containing mineral powder in nature, which has excellent cation exchange function after activation, and the activated mineral powder and ionic rare earth mineral powder are used as the medium components to domesticate microorganisms, so that microorganisms can survive in the above-mentioned ionic solution and improve the leaching rate of synergistic leaching ionic rare earth.

Preparation method of ionic rare earth leaching agent

The present application discloses a preparation method of an ionic rare earth leaching agent, which comprises the following steps: (1) domestication microorganisms with rare earth activated mineral powder culture medium to obtain a microbial suspension; (2) amplifying and culturing the microbial suspension and additives to obtain the amplified culture medium; and (3) mixing the modified sesbania gum with the amplified culture medium to obtain the ionic rare earth leaching agent. In the present application, the activated mineral powder is the active metal-containing mineral powder in nature, which has excellent cation exchange function after activation, and the activated mineral powder and ionic rare earth mineral powder are used as the medium components to domesticate microorganisms, so that microorganisms can survive in the above-mentioned ionic solution and improve the leaching rate of synergistic leaching ionic rare earth.

Preparation method of ionic rare earth leaching agent

The present application discloses a preparation method of an ionic rare earth leaching agent, which comprises the following steps: (1) domestication microorganisms with rare earth activated mineral powder culture medium to obtain a microbial suspension; (2) amplifying and culturing the microbial suspension and additives to obtain the amplified culture medium; and (3) mixing the modified sesbania gum with the amplified culture medium to obtain the ionic rare earth leaching agent. In the present application, the activated mineral powder is the active metal-containing mineral powder in nature, which has excellent cation exchange function after activation, and the activated mineral powder and ionic rare earth mineral powder are used as the medium components to domesticate microorganisms, so that microorganisms can survive in the above-mentioned ionic solution and improve the leaching rate of synergistic leaching ionic rare earth.

Preparation method of ionic rare earth leaching agent

The present application discloses a preparation method of an ionic rare earth leaching agent, which comprises the following steps: (1) domestication microorganisms with rare earth activated mineral powder culture medium to obtain a microbial suspension; (2) amplifying and culturing the microbial suspension and additives to obtain the amplified culture medium; and (3) mixing the modified sesbania gum with the amplified culture medium to obtain the ionic rare earth leaching agent. In the present application, the activated mineral powder is the active metal-containing mineral powder in nature, which has excellent cation exchange function after activation, and the activated mineral powder and ionic rare earth mineral powder are used as the medium components to domesticate microorganisms, so that microorganisms can survive in the above-mentioned ionic solution and improve the leaching rate of synergistic leaching ionic rare earth.

Foamed cement-soil slurry for backfilling building fertilizer tanks and construction technology thereof

A foamed cement-soil slurry for backfilling building fertilizer tanks comprises the following components in parts by weight: 20-80 parts of clay or silt, 20-80 parts of brick slag or concrete slag, 30-70 parts of sandy soil, 10-20 parts of cement, 0.05-0.2 part of powdery foaming agent, 50-90 parts of water and 0-0.2 parts of additive (i.e. foam stabilizer); according to the parts by weight, all the above ingredients are put into a blender and stirred evenly to obtain a mixture, then the baffle of the discharge port is opened, and the mixture is conveyed and poured into the building fertilizer tanks to be backfilled by a delivery pump. The invention can achieve the effect of volume increase by adding a proper foaming agent, and has good workability, and can meet the needs of filling fertilizer tanks regardless of strength, permeability, subsidence prevention and other properties.