115results about How to "Overcome structure" patented technology

The invention relates to an aerogel composite material, in particular to a glass fiber reinforced silicon dioxide aerogel composite material and a preparation method thereof. The excellent properties of aerogel are maintained, the mechanical properties of the aerogel are reinforced, and the glass fiber reinforced silicon dioxide aerogel composite material has good integrity and certain strength. The glass fiber reinforced silicon dioxide aerogel composite material is prepared by compounding glass fiber and silicon dioxide aerogel, wherein the glass fiber is a reinforcement, and the content ofthe glass fiber accounts for 1-15% total mass of a sample; the silicon dioxide aerogel is a matrix, tetraethoxysilane is a silicon source material, and methyltrimethoxysilane or methyltriethoxysilaneis used as a silicon source co-precursor. The preparation method comprises the following steps of: firstly, pretreating the glass fiber; then, preparing glass fiber reinforced silicon dioxide composite wet gel; and finally, aging, secondarily modifying and drying the silicon dioxide composite wet gel.

The invention relates to an oil-displacing agent for enhancing crude oil recovery efficiency in tertiary recovery and a preparation method thereof, belonging to the technical field of intensified oilproduction in oil fields. The surface active agent used in the invention comprises following components in percentage by weight: 0.01-0.3 percent of water soluble high molecular polymer, 0-20 percentof non-ionic surface active agent, 5-65 percent of anion active agent, 0-5 percent of ampholytic active agent, 0.01-1.5 percent of additive and the balance of water. The oil-displacing agent and the polymer are based on a novel intensified oil displacing system which has complementary structure and good compatibility and is obtained by various associations and the interaction among molecules. Thesystem has the performances of high temperature resistance, salt resistance, higher viscosity, ultralow interfacial tension, and the like, is in accordance with the environmental requirement and can obviously enhance the oil recovery efficiency of oil fields after being used for oil-displacing.

The invention belongs to the technical filed of security inspection and relates to a vertical mechanical microwave scanning active imaging personnel security inspection system. By means of creative design and through adoption of a pair of horizontal detection arrays which are separately arranged in parallel on two sides or the front side and the back side of an inspected person in a vertical mode, vertical scanning imaging for the inspected person is conducted. Each detection array is in a shape of a straight array or a bow shape with two inwards folded heads or an arc shape or the like. Compared with an existing adopted vertical detection array active imaging personnel security inspection system, the vertical mechanical microwave scanning active imaging personnel security inspection system has the advantages that the number of transmit-receive components of the detection arrays can be reduced greatly and a system structure is simplified. Not only is convenience brought to storage, transportation, installation and usage but also system cost can be reduced.

The invention provides a method for three-dimensional (3D) printing of a restoring implant by bony articular surface reconstruction. First three-dimensional reconstruction of a bone articular model is performed, and then virtual restoration reconstruction of bony articular reconstruction, reversal design of a bone articular defect area restoring implant and 3D printing forming of a bone articular defect restoring implant are performed. Modeling software is utilized to copy a normal side bone articular three-dimensional model to an affected side in a sagittal plane symmetry mode, so as to obtain a complete structure reference model before the occurrence of fracture of the affected side; 3D printing pro-processing software is utilized to support and generate the model, a corresponding forming material and a quick forming process are selected to perform 3D printing, a support structure of the implant is further removed, and finally an individual bone articular reconstruction restoring implant is obtained. The individual reversal design is performed according to the symmetry morphological structure of the human body, the bony articular surface reconstruction defect restoring implant is quickly formed by combination with a 3D printing technology, not only can a bone articular defect restoring reconstruction be greatly improved, but also the design and manufacturing efficiency of the implant is effectively improved, the cost is reduced, and customized design and individual-based treatment are performed.

The invention provides a dual-curing adhesive composition, comprising a) (methyl)-acrylics oligomer with at least an unsaturated group; b) monofunctional monomer, multifunctional monomer or mixture thereof; c) (methyl)-acrylate resin with isocyanate group; d) polyester polyol resin; e) an initiator; and f) a plasticizer with refractive index of more than 1.49. The dual-curing adhesive composition has themocuring and photocuring properties at the same time, and has good translucency and high refraction index. The dual-curing adhesive composition can be used in optical products, and preparing process is simplified. The dual-curing adhesive composition has good adhesiveness, good optical property, and good reprocessing property.

The invention provides a superhydrophobic coating prepared from particles with ultrahigh roughness. The superhydrophobic coating is prepared from the following components: particles with protrusions or holes and unsmooth structures, protective particles, a bonding agent and an assistant, wherein the volume ratio of the particles with the protrusions or the holes and the unsmooth structures to the protective particles to the bonding agent is (0.1-7):(1-7):(1-10). A lotus effect technical theory is applied to obtain a super-hydrophobic, underwater superhydrophobic oil or super-amphiphobic surface coating, further the performance of the coating is improved, and the defects of the conventional superhydrophobic coating that the structure is easy to damage, the service life is short and the like are overcome. The prepared coating has super hydrophobic properties (super-hydrophobic, underwater superhydrophobic oil or super-amphiphobic properties), self-cleanness and excellent wear resistance; substrate materials suitable for the coating are glass, plastic, rubber, textiles, paper, metal, cement, ceramic materials or the materials covering other coatings.

The invention discloses a time domain identification method of random dynamic loads. The time domain identification method is characterized by comprising the following steps that (1) a strain sensor and an acceleration sensor are arranged on an engineering structure, and dynamic strain samples and acceleration response samples of the structure are obtained through measurement; (2) an accurate structure finite element model is established for the engineering structure, model condensation is conducted, and a condensed finite element model matched with the freedom degree of a dynamic strain response signal obtained through actual measurement is obtained; (3) on the basis of a dynamic strain sample set obtained through actual measurement, the deterministic component of structure random dynamic response is obtained through the KL decomposition technology; (4) deterministic components of the random dynamic loads are identified by the adoption of the direct inversion method and the Tikhonov regularization method; (5) the statistic characteristics, namely, the average time history and the variance, of the random dynamic loads are obtained.

A mouse's space memory holding model and its intelligent behavior detection system are disclosed. A circular dark box type labyrinth is used as the behavior data acquiring unit. The mouse to be tested passes through a tubular channel with adjustable one-way gates along a pointed path and closed loop for performing the cyclic training. The signals about the active movement and passive movement caused by electric shock are acquired and processed by the data processing control unit. Said signals are transmitted via PCI bus to the Access database in control system, and then processed by the statistical software package, so controlling and monitoring the behavior of mouse at any time.

The invention belongs to the technical field of synthesis and preparation of polymer materials, and discloses a synthetic method of triblock polymer, wherein stepwise polymerization (SGB), atom transfer radical polymerization (ATRP) and click chemistry method are combined at first; and 1, 3-dipolar cycloaddition reaction is performed to polymer with azido terminal group and polyurethane prepolymer with alkynyl terminal group to successfully synthesize triblock polymer containing triazole ring. The synthesis method provided by the invention overcomes the defects in traditional block polymer synthesis that reaction conditions are strict, molecular weight distribution is controlled difficultly, and selectable classes of monomers are less, and has the advantages of high conversion rate, mild reaction conditions, narrow molecular weight distribution and strong controllability. The triblock polymer provided by the invention has potential application in ways of medicine slow release, solubilizers and surfactants.

The invention discloses a single-beam-laser multidimensional speed measuring system of a high-speed rarefied gas flow field. The single-beam-laser multidimensional speed measuring system comprises a high-speed rarefied gas wind tunnel (1), a laser light source module (2), a laser beam shaping module (3), a high-voltage arc discharge module (4), a fluorescent signal collecting and recording module (5), a data processing module (6) and a time sequence synchronous control module (7). The invention further provides an application method of the system.

The invention discloses an FRP (fiber reinforced plastic) optical fiber intelligent composite rib embedded with a steel strand, which belongs to the technical field of safety monitoring and structural materials and is characterized in that the steel strand and the optical fiber or a fiber bragg grating are parallelly embedded in the FRP rib along the length direction of fiber resin and are organically integrated through a pultrusion process, wherein the steel strand is embedded in the middle of the FRP rib, the optical fiber or the fiber bragg grating is embedded at the outer side of an FRP covering; or the optical fiber or the fiber bragg grating is embedded in the middle of the FRP rib, and the steel strand is embedded at the outer side of the FRP covering. The FRP optical fiber intelligent composite rib has the effects and advantages that the optical fiber intelligent composite rib has high modulus, good durability and self-sensing property, and can be widely applied to projects of bridge stay cables and booms and the like as a novel material in civil engineering and a sensing element for long-time monitoring.

The invention provides a novel sweeping and absorbing integrated cleaning mechanism. The novel sweeping and absorbing integrated cleaning mechanism comprises a rotating cleaning brush carried by a sweeper. A shell making contact with the ground in a soft mode covers the rotating cleaning brush. A pumping pipeline is communicated with the upper portion of the shell. Due to the adoption of the technical scheme, the novel sweeping and absorbing integrated cleaning mechanism breaks through the structural form of traditional sweepers and integrates a rubbish brushing and sweeping mechanism and a rubbish pumping mechanism; the cleaning brush is rotated to brush and sweep rubbish in the shell in a rotating mode, is prevented from being absorbed on the ground and is in a free floating state. Negative pressure is formed in the shell through the pumping pipeline, the rubbish is pumped to a rubbish can of the sweeper through the pumping pipeline and is stored, and the cleaning brush is rotated to be matched with the shell and the pumping pipeline to form an Archimedes spiral type rubbish absorbing structure. The novel sweeping and absorbing integrated cleaning mechanism is strong in rubbish pumping and intake capacity and overcomes the defects that the traditional sweepers are single in structure and poor in cleaning ability. Compared with the prior art, the novel sweeping and absorbing integrated cleaning mechanism is thorough in road surface rubbish cleaning, efficient, novel and reasonable in structure and strong in practicability.

The invention relates to massive and controllable preparation field of semiconductor type single-walled carbon nanotubes, specifically to a method for directly growing the semiconductor type single-walled carbon nanotube with floating catalyst and auxiliary oxygen. The method comprises the following steps of: taking ferrocene as precursor of the catalyst, taking right amount of sulphur powder as growth promoter, and taking hydrogen as a carrier gas; simultaneously introducing a carbon source gas and small amount of oxygen to grow the single-walled carbon nanotube, and etching the small-diameter and metallic single-walled carbon nanotube in situ; and finally, obtaining a sample in which the semiconductor type single-walled carbon nanotube is dominant, wherein content of the semiconductor type single-walled carbon nanotube is 90 wt%, and diameter distribution of the semiconductor type single-walled carbon nanotube is 1.4-1.8 nm. With the method, massive and directly controlled growth ofthe semiconductor type single-walled carbon nanotube with narrower diameter distribution is realized; and the method solves the problems, such as that the separation process of the existing chemical and physical methods seriously damages the intrinsic structure of the single-walled carbon nanotube and the process is complex, and sample amount is less, diameter distribution is wider and the diameter is smaller in the direct preparation technology, and the like.

The invention provides a method for preparing complex organ precursor with a branch vessel network. The method comprises the following steps: firstly preparing one or more cellular matrix solutions and a synthetic macromolecular solution; pouring the cellular matrix solution into a combined mold in layers for physical or chemical cross-linking to form a multilayered cellular matrix layer; taking out a branch mold and removing a shell mold in layers from inwards to outwards; pouring macromolecular solutions of different types into gaps remained in the shell mold respectively so as to form a multilayered synthetic macromolecule shell; and removing the combined mold and abutting two formed structures so as to obtain the complex organ precursor. According to the method, a complex organ precursor three-dimensional structure, in which a branch vessel network is provided and cellular matrix materials of different types and synthetic macromolecule support shells are combined, is formed; and the defects that the tissue engineering is simple in three-dimensional support surface and the internal structure, low in similarity with real organs, single in cell type and uneven in cell distribution, less in possibility for survival of closed cells, difficult in non-channel differentiation vessels and strong in support appearance limitation are solved.

The invention relates to a preparation method of lithium ion battery nanoporous silicon negative electrode material, and belongs to the technical field of new energy materials and electrochemistry. The silicon material crushed and finely ground into the micro-nano silicon powder in the protective gas atmosphere, and then crushing pretreatment is performed and the metal nanoparticles on the surfaceof the silicon powder are washed away and dried so as to obtain the nano silicon powder; one-step or two-step metal nanoparticle assisted chemical etching is performed on the nano silicon powder, solid-liquid separation and drying are performed so as to obtain nanoporous silicon/metal composite material; or a detergent is applied to remove the metal nanoparticles on the surface of the nanoporoussilicon, solid-liquid separation and drying are performed so as to obtain the nanoporous silicon; and the nanoporous silicon/metal composite material or the nano-porous silicon is oxidized so as to obtain an oxidized nano-porous silicon/metal composite material or oxidized nano-porous silicon, and the nanoporous silicon/metal composite material, the nanoporous silicon, the oxidized nanoporous silicon/metal composite material or the oxidized nanoporous silicon are the lithium ion battery nanoporous silicon negative electrode material.

The invention relates to a cartilage preservation solution. Each 1000ml of the preservation solution comprises 20-30mmol of potassium dihydrogen phosphate, 80mmol of histidine or 15mmol of a histidine salt, 75-95mmol of lactobionic acid, 50-70mmol of sucrose, 0.8-1.2mmol of allopurinol, 45-55g of low molecular dextran-40, 45-55mmol of NaCl, 25-35mmol of KCl, 3-7mmol magnesium sulfate, 70-90U of penicillin, 2-4mmol of reduced glutathione, 3-7mmol of adenosine, 2-5g of trehalose, and the balance deionized water, and the pH value of the cartilage preservation solution is 7.33-7.53. The cartilagepreservation solution is packaged, sealed and preserved at 0-4DEG C. By adopting the preservation solution to preserve cartilage tissues, the death speed of cartilage cells is slowed, the activity ofcartilage fibers is maintained, the performance of the cartilage tissues is kept, and the antibiotic property is increased, so the preservation solution has a good preservation effect and a long preservation time on the cartilage tissues, and is in favor of clinic cartilage tissue transplant operations.

The invention discloses a method and system for removing the fog effect from an image rapidly, a terminal and a storage medium, the method comprise the steps of: optimizing a dark channel image with maximum filtering and guiding filtering after a sky area and a non-sky area are divided by OTSU, and determining a first transmittance according to the optimized dark channel image; adjusting the firsttransmittance by adopting an adaptive parameter adjusting method to obtain a second transmittance; according to the first transmittance and the second transmittance, removing the fog effect from thesky area and the non-sky area according to an atmospheric scattering model to obtain a fog effect removed image; adjusting the hue of the fog effect removed image by CLAHE. The system comprises an acquisition module, a division module, an optimization module, an adjustment module, a fog effect removing module and a hue adjusting module. According to the method and the system for removing the fog effect from image rapidly, the terminal and the storage medium, fog effect removing process of the image having the fog effect can be realized effectively, the defogging effect is good, and the processing operation efficiency is high. The method can be applied to the field of image processing.

The invention provides a preparation method for a spherical cellulose aerogel, which relates to a preparation method for an aerogel. The objective of the invention is to overcome the problems that the phenomena of structure collapse and volume contraction of a conventional cellulose aerogel frequently occur and the specific surface area of an obtained aerogel is small. The method comprises the following steps: 1, putting vegetable fiber in a mixed solution of urea and NaOH and carrying out stirring after refrigeration for formation of a solution so as to obtain a vegetable fiber/alkaline urea solution; 2, mixing trichloromethane with ethyl acetate and then adding glacial acetic acid so as to obtain an organic solution; 3, titrating the vegetable fiber/alkaline urea solution into the organic solution of glacial acetic acid and carrying out ageing so as to obtain a gel; 4, putting the gel into a glacial acetic acid solution for solidification; and 5, replacing a hydrogel successively with absolute ethyl alcohol and tert-butyl alcohol and carrying out refrigeration and freeze-drying so as to obtain the aerogel. According to the invention, the phenomena of structure collapse and volume contraction of an aerogel in the process of drying are overcome, and the prepared cellulose aerogel has low density and a specific surface area of more than 240 m<2>/g.

The invention discloses an optical fiber type sensor system based on surface plasma resonance and stimulated Raman scattering. The system comprises a broadband light source, a P-type polaroid, a focusing convex lens, a polarization controller, an optical fiber beam splitter, an optical fiber inclined end, a surface plasma resonance (SPR) probe and an optical fiber spectrometer, wherein the P-type polaroid is positioned between the broadband light source and the focusing convex lens; the focusing convex lens optically couples the polarization broadband to the polarization controller; the polarization controller is connected with one input end of the optical fiber beam splitter, and the optical fiber spectrometer is connected with the other input end of the optical fiber beam splitter; the optical fiber inclined end is connected with one output end of the optical fiber beam splitter, and the SPR probe is connected with the other output end of the optical fiber beam splitter; the free end of the optical fiber inclined end is inclined; the SPR probe comprises an optical fiber; the end face of an exposed fiber core is provide with a first metal film, and the periphery of the exposed fiber core is provide with a second metal film; a nano-film is arranged on the surface of the second metal film; and a sensitive film is arranged on the nano-film. The system has the advantages of high universality, sensitivity and stability, and capable of realizing remote monitoring.

The invention discloses a determination method of high-pressure water injection and radial gas permeability of gas-containing raw coal and belongs to the technical field of coal mine disaster prevention. According to the method, a water injection hole is drilled in the top center of a selected and cut cylindrical sample, a water injection floral tube is mounted in the water injection hole, two ends of the water injection floral tube are sealed, the sample is placed in an annular gas permeating cylinder, cement is poured on a base of the annular gas permeating cylinder, a gas permeable tube is arranged between the inner wall of the annular gas permeating cylinder and the cylindrical sample, cement is poured into the gap formed between the cylinder wall and the cylindrical sample, a platen is arranged at the top of the cylindrical sample, after the cement in the annular gas permeating cylinder is set, a support rod is taken out, and a raw coal sample is obtained; then the raw coal sample is placed in an experiment tank, and the permeability of the high-pressure water invasion gas-containing raw coal sample is finally calculated through cooperation of a pressure loading system, a high-pressure water injection system and the like which are connected with the experiment tank. The method provides scientific instruction for prevention of coal mine disasters with the coal seam water injection technology.

A mouse's path training model and its intelligent behavior detection system are disclosed. A circular dark box type labyrinth is used as the behavior data acquiring unit. The mouse to be tested passes through a tubular channel with adjustable one-way gates along a pointed path and closed loop for performing the cyclic training. The signals about the active movement and passive movement caused by electric shock are acquired and processed by the data processing control unit. Said signals are transmitted via PCI bus to the Access database in control system, and then processed by the statistical software package, so controlling and monitoring the behavior of mouse at any time.

The invention relates to an inner mould of a tire vertical compression vulcanizing machine and belongs to the field of tire production equipment, A narrow drum tile is respectively connected with one end of a narrow tile upper connection rod and one end of a narrow tile lower connection rod through hinging supports; the other end of the narrow tile upper connection rod and the other end of other narrow tile lower connection rod are respectively hinged with shaft end support rings and the hinging supports; one end of a narrow tile short connection rod is hinged with the central part of the narrow tile lower connection rod and the other end of the narrow tile short connection rod is hinged with a hinging support on the base; a wide drum tile is respectively connected with one end of a wide tile upper connection rod and one end of a wide tile lower connection rod through hinging supports; the other end of the wide tile upper connection rod and the other end of the wide tile lower connection rod are connected with a hinging support fixed on an outer shaft sleeve; one section of a wide tile short connection rod is hinged with the central part of the wide tile lower connection rod and the other end of the wide tile short connection rod is connected with the hinging support fixed on the base; the base, the inner shaft sleeve and the shaft end support rings are sleeved on a piston rod of a central mechanism; a positioning pin is used for fixing the shaft end support rings on the upper end of the inner shaft sleeve; the inner shaft sleeve is fixed on the piston rod through a clamping ring and a connection bolt; the outer shaft sleeve is provided with a certain quantity of guide grooves which are uniformly distributed in a peripheral direction; and a hinging support on the inner shaft sleeve is located in the guide grooves.

The invention relates to a low-loss deep-ultraviolet multilayer film production method, belongs to the application field of the deep-ultraviolet optical technology, and aims at solving the problems of the deep-ultraviolet optical film in the prior art that an optical film system is large in absorption loss by adopting a total oxide film layer and is large in scattering loss by adopting a total fluoride film layer. The low-loss deep-ultraviolet multilayer film production method includes the following steps: 1 an optical substrate needing film plating is subjected to ultrasonic cleaning, slow pulling and dewatering and N2 drying; 2 an oxide film layer stack is prepared on the optical substrate obtained in the step 1 by aid of the ion assisted electron beam evaporation technology according to a film system structure of the film design; and 3 a fluoride film layer stack is prepared on the oxide film layer stack by aid of the thermal evaporation process. The low-loss deep-ultraviolet multilayer film production method overcomes shortcomings of the loose interior structure and large surface roughness of films in a total fluoride multilayer film system and the shortcoming of large absorption loss of a total oxide multilayer film system caused by acting of middle-and-outer-layer oxide films and laser.

The present invention relates to the production process of 2, 2'-methylene-bis(4-methyl-6-tert butyl phenol). The materials including formal and 2-tert-butyl-4-cresol are made to react inside two serially connected fixed bed reactors with solid acid catalyst, which is macroporous strong acid cationic exchange resin or zeolite catalyst, and in the reaction temperature of 30-150 deg.c. The zeolite catalyst contains zeolite in 60-80 wt% and adhesive in 20-40 wt%, and the zeolite is ZSM-5 zeolite and/or flokite with SiO2/Al2O3 molar ratio of 15-100. The present invention realizes continuous production, has simple post-reaction treatment, high product yield, high product quality and high catalyst stability.

The invention provides a growing apparatus and method for a Ti sapphire crystal. The growing apparatus comprises a box type vacuum resistance furnace, wherein a vacuum system is arranged on a casing of a furnace body; a structure in the furnace body comprises a crucible and heaters, the crucible is arranged in the central position inside the furnace body, and the square crucible is provided with a stripped seed crystal slot in the central area of the bottom; the Z-shaped heaters are arranged in front and at the back of the crucible, and a box type graphite hard-felt heat insulating cover is arranged on the peripheries of the heaters; a crucible support is arranged under the crucible, and a thermoelectric coupler for measuring and controlling the temperature is arranged in the position, close to the seed crystal slot, below the crucible; and seed crystal probes are arranged on the outside of the heat insulating cover right above the crucible. The apparatus can be used for growing the Ti sapphire crystal with a larger size, so that the crystal growth speed and quality are greatly improved, the problem of limitation of diameter of the Ti sapphire crystal to the length ratio is solved, the growth period of the Ti sapphire crystal is substantially reduced, and complete high-quality Ti sapphire crystal is grown out.

The invention relates to a compact grating dispersion spectral imager which comprises a front telescopic objective system, a slit, a collimating-imaging system, a reflection grating and an area array detector; by means of the front telescopic objective system, a target imaging function is realized; the slit is a field stop, so that the target imaging range is limited; the collimating-imaging system is not only used for collimating an outgoing beam of a target slit image but also used for imaging parallel light in various wavelengths dispersed by the reflection grating onto the target surface of the detector; the reflection grating is a dispersion component, so that spectral separation of a space target is realized; and the area array detector is used for obtaining and recording digital information by virtue of a photoelectric effect. By means of the manner of sharing the collimating and imaging system, the structure of the traditional dispersion system is simplified.

The invention discloses a method for preparing polyethylene glycol network hydrogel. A polyethylene glycol derivative containing three or more multi-terminal alkynyls and a polyethylene glycol derivative at least containing two terminal overlapped nitrogenous bases are subjected to click reaction, so that the polyethylene glycol network hydrogel is generated. According to the method disclosed by the invention, the position and the number of polymer chain join points are controlled by utilizing amino-epoxy polymerization reaction; then, a required design type polymer network structure is obtained by utilizing click chemical reaction. The method disclosed by the invention is simple for operation, moderate in condition and rapid in reaction; the polymer network prepared by using the method disclosed by the invention has the advantages of being degradable, good in biocompatibility, regular in structure, high in mechanical strength and the like.

This invention discloses a board shell type heat interchanger, its main package loam board tube control, shell, tube Cheng Yuke regulation import and export; States the board tube control by the stack-up to combine in the together compound flow channel ripple slab composes, in each piece of slab plane arranges in turn has V shape concavity ripple trough, states the ripple trough according to assume the mutually perpendicular neighboring, and two kind of different orientation's ripple trough vertical side becomes an acute angle separately with slab two orientation, states slab, reverse side relative combination, forms the mutually perpendicular in its neighboring two interior, and gap heat transfer tube Cheng Heke regulation two kind of compound flow channels; States the tube regulation flow channel both sides through to pass in and out the oral siphon box and the belt separately inflates the festival the export to connect; States the shell regulation both sides to connect separately with the shell regulation import and export. This invention has at the same time the disc heat interchanger heat transfer efficiency to be high, compact is good and the shell type heat interchanger sturdy construction the merit, simultaneously it has overcome former disc heat interchanger bearing pressure ability difference and the shell type heat interchanger heat transfer efficiency is low and structure huge shortcoming.

The invention relates to a vertical magnetism anisotropic film which belongs to the field of magnetic materials, and an easy magnetizing shaft is perpendicular to a film plane. The vertical magnetism anisotropic film is characterized by comprising the component: Tbx(Co2FeZ)y, wherein Z stands for Al, Si, and the like, Co2FeZ is a semimetal Heusler alloy component, and Tb and Fe have an atomic ratio: x: y is greater than 0.2 and is less than 2. The vertical magnetism anisotropic film has a high vertical magnetism anisotropic field and can regulate coercive force by controlling the atomic component ratio, the coercive force of the vertical magnetism anisotropic film is obviously lower than the coercive force of the traditional vertical magnetism anisotropic film, and therefore, the vertical magnetism anisotropic film can be used as a ferromagnetic layer to be applied to a vertical spin valve or a magnetic tunnel-junction. When used, the vertical magnetism anisotropic film can overcome magnetic curliness and vortex magnetic domain structure under a small size, has adjustable coercive force and can satisfy the use requirement of a magnetic sensor or a memory with ultrahigh sensitivity and memory density.

The invention discloses a lightning arrester performance parameter detecting device which comprises a current monitor which is used for carrying out collection and harmonic analysis compensation calculation on the resistive current and capacitive current of an MOA lightning arrester and outputting a calculated value to a current monitor of an MOA lightning arrester state online monitoring centralized control terminal, the MOA lightning arrester state online monitoring centralized control terminal used for transmitting a monitored value to a computer after data processing, and the computer used for checking and controlling a current monitor of the MOA lightning arrester remotely, wherein the MOA lightning arrester is connected with a plurality of current monitors which are connected with the MOA lightning arrester state online monitoring centralized control terminal, and the MOA lightning arrester state online monitoring centralized control terminal is connected to the computer. According to the lightning arrester performance parameter detecting device, by means of the triple harmonic analysis method and the unique compensation calculation technique, the change of the resistive current and the capacitive current is calculated to judge the early-stage fault of the MOA lightning arrester, real-time central monitoring of all MOA lightning arresters in a transformer substation is achieved, the operation is simple, safety and reliability are achieved, and cost performance is high.