Phage random peptide library of mycobacterium tuberculosis

The invention discloses a phage random peptide library of mycobacterium tuberculosis, which uses DNase I to digest an H37Rv gene group of the mycobacterium tuberculosis to obtain a 50-80bp gene fragment which is further connected on phage M13KE and then uses deer tuberculosis I gG for carrying out three rounds of panning to obtain the phage random peptide library of the mycobacterium tuberculosis under strict conditions. The cutaneous allergic reaction of mice, the detection test of specific antibody in immune mouse serum, the test on spleen lymphopoiesis of the immune mouse and the toxicity test of bovine mycobacterium tuberculosis BCG show that the bacterial load in lung of the mice has significant difference compared with a control group, thereby proving that the antigenicity of the phage random peptide library of the mycobacterium tuberculosis is superior to the bovine mycobacterium tuberculosis BCG, the toxicity thereof is lower than the bovine mycobacterium tuberculosis BCG and also ...

GIS (geographic information system)-based quantitative evaluation method of visual landscape influence

The invention provides a GIS (geographic information system)-based quantitative evaluation method of visual landscape influence and relates to the fields including landscape ecology, the GIS and urban planning. Based on the GIS, the quantitative evaluation is performed; an effective method to reduce the visual landscape influence is provided to solve the technical problem of determining the maximum ecological land area in the urban development. The technical scheme includes 1, establishing a digital terrain model according to basically topographic data, and generating a three-dimensional display image; 2, selecting sensitive landscape viewpoints; 3, analyzing exposure degree of the viewpoints; 4, analyzing visual distances; and 5, analyzing the influenced sensitive points, evaluating section lines among buildings in a site, and providing a layout plan of shield greening. In this way, the visual landscape environmental influence is evaluated in an objective and quantitative manner, and practicability ...

Method for designing McPherson suspension

The invention aims at providing a method for simply designing a McPherson suspension. The method comprises the following steps: firstly, establishing a coordinate system; then, obtaining hard point position parameters of connecting positions of each component in the McPherson suspension such as the shock absorber upper point, the tire grounding point, the control arm outer point and the control arm front point or back point and the like through measurement or calculation; carrying out calculation according to the parameters to obtain an equation of a main pin axial line and a control arm axial line; calculating the coordinates of an instantaneous rotation center through setting a first auxiliary line on the basis; and then, calculating the side inclination center height through setting a second auxiliary line. Thereby, the hard point positions of the connecting positions of each component in the McPherson suspension can be regulated according to the design requirements, and the side inclination ...

Car passenger compartment floor rib arrangement structure

The invention relates to a car passenger compartment floor rib arrangement structure, which comprises a floor (5), leakage holes (9, 10) and annular reinforcing ribs, wherein the leakage holes (9, 10) are formed on the floor (5); the annular reinforcing ribs comprise a first reinforcing rib (11) and a second reinforcing rib (14); the number of the leakage holes (9, 10) is two; and the first reinforcing rib (11) is a reinforcing rib which is arranged on the straight floor surface of the floor (5) by using the first leakage hole (9) as a circle center, and the second reinforcing rib (14) is a reinforcing rib which is arranged on the straight floor surface of the floor (5) by using the second leakage hole (10) as a circle center.

Cascade reservoir medium and long term scheduling algorithm based on corridor sequence quadratic programming

The invention discloses an optimization algorithm for medium-and-long-term scheduling of cascade reservoirs. The long-term optimization scheduling of the cascade hydropower station group is a typical complex multi-target high-dimension non-convex nonlinear problem, the invention provides a sequential quadratic programming (SQP) algorithm framework based on a water level trust gallery, the generating capacity of a reservoir is maximized and the output is ensured on the basis of a certain incoming water quantity, and the optimal scheduling of the cascade hydropower station group is realized. According to the improvement condition of the successive target value, corridor adjustment is carried out until convergence, and the operation mode of each ten-day period of the cascade reservoir in the one-year scheduling period is obtained through optimization. Compared with conventional scheduling according to a reservoir scheduling graph and a dynamic planning method which is widely applied in practical ...

Artificial Source Near-Zone Frequency Domain Electromagnetic Sounding Method

Abstract The invention discloses an artificial source near-zone frequency domain electromagnetic sounding method, comprising the following steps of: S1, setting a transmitting source and a receiving system, and observing a total vertical magnetic-field component of an artificial source; S2, calculating a primary vertical component generated by the transmitting source at an observation point; S3, calculating a pure induction electric field generated by the earth at the observation point based on the total vertical magnetic-field component and the primary vertical component generated by the transmitting source; and S4, calculating the resistivity and depth information of the earth based on the pure induction electric field generated by the earth. According to the characteristic that a primary field and an induction field in the vertical magnetic-field component are easy to separate, the invention provides a method for sounding a formation electrical structure by utilizing the pure induction field, and the method is a novel artificial source frequency domain electromagnetic observation and data processing technology, which can significantly shorten a transmitter-receiver distance of artificial source frequency sounding and improve the resolution of the formation electrical structure. S1, setting a transmitting source and a receiving system, and observing a total vertical magnetic-field component of an artificial source. S2,, calculating a primLoary veBrtical -compon-ent generated by the transmiLttiLng sourc-e at an observation poi-nt. 53, tdi-=latingam uktianelectric field genenated by the emrth at the abservatin maint bsed n the total vertical mEsnetic-field cr- net md the Primerr vertical crminet grated by the tr -i tting source. 54, calculating the resistivity and depth information of the earth based on the pure induction electric field generated by the earth. Fig. 1

Selection preprocess method for downlink link antenna of multi-user MIMO system

An antenna-selection preprocessing method of multi-user MIMO system down link includes setting up model of multi-user MIMO system down link to confirm coding mode and channel transmission matrix, confirming base of preprocessing matrix of each user by channel transmission matrix between base station and each user, utilizing said channel transmission matrix and said base to confirm optimum unitarymatrix of each user preprocessing matrix, converting said model to be equivalent vector form and using linear zero-approach means to realize signal detection.

Soybean leaf specific promoter SRS4 and application thereof

The invention discloses a soybean leaf specific promoter SRS4 and application in a transgenic plant. A soybean rbcS gene promoter SRS4 is cloned by using a uniquely designed primer and taking soybean 'Jinong13' genome DNA as a template; a plant expression vector is constructed and is named Pcambia-GrbcSP; and a specific light control promoter is obtained from soybeans by performing genetic transformation by adopting agrobacterium-mediated tobacco and performing functional verification in a mode of expressing a GUS gene. The soybean leaf specific promoter SRS4 can be used in the transgenic plant, in particular in genetically engineered soybeans, lays a theoretical basis for establishing a time, space and amount three-dimensional regulation and control system for plant transgene expression,and has great significance for researching the regulation and the control of gene expression, constructing a vector for genetic engineering, expressing a target protein, and improving yield.

Human body rotating table for examination in hospital radiology department

The invention relates to the technical field of medical equipment, and discloses a human body rotating table for examination in the radiology department of a hospital, which comprises a base, a first motor mounted on the inner side of the base, a rotating table arranged on the outer side of the base, a second motor mounted on the inner side of the rotating table and a lifting table arranged on the outer side of the rotating table, a screw sleeve groove is formed in the inner side of the lifting table, a screw rod is installed on an output shaft of the second motor and screwed in the screw sleeve groove, a roller is arranged on the inner side of the lifting table, and an inspection table is arranged on the outer side of the roller; the first motor drives the rotating table to rotate on the upper side of the base, so that the lifting table drives the examination table to rotate, the second motor drives the lead screw to rotate in the screw sleeve groove, the lifting table drives the examination ...

Amorphous alloy iron core electric transformer core

The invention relates to an amorphous alloy iron core electric transformer core with high short-circuit resistance capability, which comprises clamping pieces, an iron core, a coil, an insulating plate, cushions and bolts. The corresponding clamping pieces on the upper corner and the lower corner of the square coil are provided with internal threaded holes, each hole is internally provided with a screw rod, and each ushion is arranged between the screw rod and the square coil. The invention is widely suitable for electric transformers.

Simple sedan hook-towing device

The invention provides a simple sedan tow-hook device, which is characterized in that the device structurally comprises an internal thread sleeve fixedly welded on the reinforced skeleton of an underbody; an external tow-hook with the tail part fixedly connected to a threaded rod; and a reinforced sleeve with one end being in a threaded connection with the internal thread sleeve via the external thread thereof and the other end being in a threaded connected with the threaded rod via the internal thread thereof. The device can structurally improve the device strength effectively. The device has the advantages of simple structure and convenient assembly and disassembly.

Soybean leaf specific promoter SRS4 and application thereof

The invention discloses a soybean leaf specific promoter SRS4 and application in a transgenic plant. A soybean rbcS gene promoter SRS4 is cloned by using a uniquely designed primer and taking soybean 'Jinong13' genome DNA as a template; a plant expression vector is constructed and is named Pcambia-GrbcSP; and a specific light control promoter is obtained from soybeans by performing genetic transformation by adopting agrobacterium-mediated tobacco and performing functional verification in a mode of expressing a GUS gene. The soybean leaf specific promoter SRS4 can be used in the transgenic plant, in particular in genetically engineered soybeans, lays a theoretical basis for establishing a time, space and amount three-dimensional regulation and control system for plant transgene expression, and has great significance for researching the regulation and the control of gene expression, constructing a vector for genetic engineering, expressing a target protein, and improving yield.

Disposable sweat detection test paper and sweat detection lactic acid, electrolyte and glucose head ring

The invention belongs to the technical field of exercise monitoring, and particularly relates to disposable sweat detection test paper and a sweat detection lactic acid, electrolyte and glucose head ring, comprising a sweat monitoring head ring which can be worn on the head during exercise and detect the collected sweat, and an adjustable head band which is matched with the sweat monitoring head ring and can be worn on the forehead, the diameter of the sweat monitoring head ring can be adjusted, the sweat detection test paper can collect natural sweat of the forehead and is matched with the sweat monitoring head ring to detect the sweat, and the sweat monitoring head ring is connected with a mobile device through a Bluetooth module and wirelessly transmits data to the mobile device. In addition, a user can set the number of times of detection and the time period in a self-defined mode according to needs and upload sweat data to a mobile phone APP or a computer in real time, and uninterrupted ...

Unfolding mechanism for printing medium of thermal printing machine and unfolding method thereof

The invention relates to an unfolding mechanism for a printing medium of a thermal printing machine and an unfolding method thereof, the unfolding mechanism comprises a frame, a printing head movably connected with the frame and a driving supporting shaft, a color bar driving tension shaft, a color bar driven tension shaft, a printing carrier driving tension shaft and a printing carrier driven tension shaft are movably connected on the frame, the color bar driving tension shaft is connected with a color bar motor output shaft, the printing carrier driving tension shaft is connected with a carrier motor output shaft, a color bar damper is arranged on the color bar driven tension shaft, a carrier damper is arranged on the printing carrier driven tension shaft, the color bar driven tension shaft and the printing carrier driven tension shaft are respectively provided with a damper, the dampers can give resistance opposite to the printing direction to the color bar driven tension shaft and the ...

Full-falling-film evaporator with double refrigerant distribution devices

The invention discloses a full-falling-film evaporator with double refrigerant distribution devices. The full-falling-film evaporator comprises a barrel. A refrigerant inlet and a refrigerant outlet are formed in the top of the barrel. The upper distribution device is arranged on the inner upper portion of the barrel. Air baffles are arranged on the two sides of the top of the upper distribution device respectively and are respectively provided with a plurality of via holes communicated with the refrigerant outlet. An upper heat exchange tube bank is arranged below the upper distribution device. The lower distribution device is arranged below the upper heat exchange tube bank. A lower heat exchange tube bank is arranged below the lower distribution device. An oil accumulation zone is formed below the lower heat exchange tube bank and is provided with an oil return port and a liquid level sensor for controlling the liquid level. According to the full-falling-film evaporator, full-falling-film-type ...

Refrigeration structure of semiconductor laser, and semiconductor laser and stack thereof

Disclosed herein is a cooler of a semiconductor laser. The cooler includes a heat sink comprising a first surface and a second surface opposite the first surface; a first conductive layer and a second conductive layer, disposed on the first surface and not short-circuited to each other; and a conductive connector comprising a first end part, a second end part, and a first connection part connecting the first end part and the second end part. The first end part is on the first conductive layer. The second end part is on the second surface of the heat sink and insulated from the heat sink. The first connection part is disposed at a first non-opposite end of the first conductive layer on the heat sink.

Method and device for calculating thermal stress of three-dimensional integrated circuit, storage medium and processor

The invention relates to the technical field of microelectronics, and discloses a thermal stress calculation method and device for a three-dimensional integrated circuit, a storage medium and a processor. According to the parameter information, constructing an original problem model, and converting the original problem model into a background problem model and a plurality of auxiliary sub-problem models; respectively solving the background problem model and the plurality of auxiliary sub-problem models based on a finite element method, and obtaining a thermal stress value of the three-dimensional integrated circuit based on the displacement of the background problem model and the displacement of the plurality of auxiliary sub-problem models; the original problem model is an elastic interface problem model; the background problem model is a problem model obtained by filling an interconnection line area of the original problem model with a substrate medium; the auxiliary sub-problem model ...

Vibration damping and energy-absorbing device of vehicle auxiliary frame and method thereof

The invention discloses a vibration damping and energy absorption method for an automobile sub-frame, which comprises the steps of (1) performing finite-element analysis to an sub-frame to obtain the quality, the first-order bending mode and the corresponding maximum displacement site of the sub-frame; (2) arranging a mass block with an elastic damping system to damp vibration and absorb energy; and (3) performing modal analysis and experimental verification on the improved sub-frame to correct the elastic damping system and the mass block parameters. The inventive method does not change the current structure of the sub-frame, and arranges the mass block with the elastic damping system in a specific position on the sub-frame to reduce the vibration amplitude by utilizing the principle of resonance energy absorption, so as to reduce the transmission of vibration toward automobile body. The method can also adjust the frequency of vibration damping and energy absorption devices by adjusting ...

Falling film evaporator

The present application discloses a falling film evaporator including a barrel that is provided with an upper distributor at an inner upper side thereof, gas barriers are respectively provided at both sides of the top of the upper distributor, at least one gas barrier is provided with sawteeth at the edge thereof, a gas flowing channel is formed by the sawteeth and the inner wall of the barrel in an encircled manner and is communicated with the gas refrigerant outlet, at the bottom of the both side walls of the upper distributor is respectively provided with a turbulent flow plate, an upper heat exchange tube group is provided below the upper distributor, a lower heat exchange tube group is provided below the upper heat exchange tube group, an oil enriched area provided with a liquid level sensor is provided below the lower heat exchange tube group, a signal output end of the liquid level sensor is connected with a signal input end of the throttle device, and oil return ports are opened ...

Site advertisement and system for real-time interaction of electronic advertisement data

The invention discloses a site advertisement and a system for the real-time interaction of electronic advertisement data, wherein the system comprises that: a user utilizes a site advertisement picture-taking unit to take a picture of the site advertisement, a client reads and sends the picture of the site advertisement to an advertiser server; the advertiser server transfers the picture of the site advertisement to a picture content analyzing and retrieving unit; the picture content analyzing and retrieving unit retrieves a corresponding database picture in an advertisement picture database and returns related information in a commodity information database, to which the database picture in the retrieval result is corresponding, to the advertiser server; and the advertiser server sends the commodity information returned by the picture content analyzing and retrieving unit to the client. Since the picture content analyzing and retrieving unit combines picture content retrieval and word ...

Box-type transformer station convenient to move

The utility model relates to the technical field of box-type substation devices. The utility model discloses a box-type substation convenient to move. The device comprises a box body and a base, the bottom of the box body is fixedly connected with a telescopic frame; the bottom of the telescopic frame is fixedly connected with a telescopic rod; the right side of the bottom of the telescopic frameis fixedly connected with a controller; the bottom of the telescopic frame is fixedly connected with a supporting plate. A rotating shaft is fixedly connected to the inner side of the supporting plate; wheels are fixedly connected to the two ends of the rotating shaft; the side face of the base is fixedly connected with a limiting sleeve. The inner side of the limiting sleeve is fixedly connectedwith a supporting rod; and the right side of the supporting rod is fixedly connected with a rotating handle. Through the arrangement of the wheels, the telescopic frame and the telescopic rod, the telescopic ...

SIW lamination structure cavity filter and design method thereof

The invention belongs to the microwave passive device field, relates to transmission line and cavity coupling technologies and provides an X wave band SIW lamination structure cavity coupling filter. The filter comprises an input end, a SIW body and an output end. According to the SIW body, dielectric layers are overlapped through a cavity lamination mode. The dielectric layer comprises a source and a load layer. A scope of the layers is 3-7 layers. The lowest layer cavity is a source cavity and a top layer cavity is a load cavity. And the two cavities can be interchanged. A metal sheet is arranged between the adjacent dielectric layers so as to separate the dielectric layers. Each dielectric layer is SIW resonant cavity, except outermost two layers of the dielectric layers. A center of the metal sheet is provided with a circular electric coupling hole or a rectangular magnetic coupling hole is arranged at two copper through hole edges of the dielectric layer, wherein the position of the ...

Image classification method based on cascaded codebook generation

The invention provides an image classification method based on cascaded codebook generation. In the method, a cascaded codebook generation means is adopted, and a sample mapping space is dynamically adjusted according to the change of training samples, so that the training samples are easier to separate to train a classifier based on the current codebook. A test image sequentially passes through each trained classifier; when outputs of all classifiers are positive, a category tab of the image is judged to be positive; or the category tab of the image is judged to be negative. As a cascaded codebook generation method is adopted in the method, the number of dimensions represented by the image is reduced while each turn of codebooks keep stronger discrimination, and the conflict between the diversity of the codebook and the dimension disaster is solved; meanwhile, as the cascaded codebook generation means is adopted in the method, the number of positive samples and the number of negative samples ...

Image classification method based on category correlated codebook and classifier voting strategy

Low-surface-energy self-sealing gradient radar wave-absorbing coating and use method thereof

The invention belongs to the technical field of radar wave-absorbing coating corrosion protection, and particularly relates to a low-surface-energy self-sealing gradient type radar wave-absorbing coating and a use method thereof. According to the low-surface-energy self-sealing gradient radar wave-absorbing coating, the high polymer and the adhesive which are incompatible are selected, the high polymer is selected from two to three materials, the high polymer can be automatically and gradually enriched from the interior of the coating to the surface under the normal-temperature curing condition due to different material types, a gradient type organic protective film is formed, and finally the low-surface-energy self-sealing gradient type radar wave-absorbing coating is formed. The weather resistance of the whole coating can be further accumulated by adopting the existing surface high-weather-resistance modified magnetic metal powder; and meanwhile, the gradient type organic protective film ...

Cordycepin nanometer sustained-release capsule and preparation method thereof

The invention discloses a cordycepin nanometer sustained-release capsule and a preparation method thereof, relates to the field of medicines as well as modification of medical intermediate compounds, and solves the problem of short half-life period during use of the conventional cordycepin. The method comprises the following steps: dissolving cordycepin into a weakly acidic liquid to obtain a cordycepin liquid; dissolving sodium alga acid into an alkaline liquid to obtain a sodium alga acid liquid; mixing the liquids according to that the molar ratio of cordycepin to sodium alga acid is 1:10-10:1 for at least 20 minutes; performing centrifugal washing and ultrasonic dispersion to obtain cordycepin nanometer sustained-release spheres; and mixing the cordycepin nanometer sustained-release spheres with a 0.125 mol/L CaCl2 liquid at equal volumes, and curing to obtain cordycepin nanometer sustained-release capsule powder being 200-300 nanometers in diameter. By mixing the cordycepin liquid ...

REFRIGERATION STRUCTURE OF SEMICONDUCTOR LASER, AND SEMICONDUCTOR LASER AND STACK THEREOF

The invention provides a cooler of the semiconductor laser, a semiconductor laser comprising the cooler, and a stack of the semiconductor lasers, all of which can be applied to high power devices, and have high environmental adaptability and reliability. The cooler of a semiconductor laser includes: a heat sink including a liquid cooling circuit and an upper surface, a first insulation layer disposed on the upper surface of the heat sink, and a first electrical and thermal conductive layer disposed on the first insulation layer; a laser chip and a negative conductive layer are disposed on different positions of the first electrical and thermal conductive layer; a positive surface of the laser chip is directly bonded on the first electrical and thermal conductive layer; an insulating interlayer is disposed between the negative conductive layer and a surface of the first electrical and thermal conductive layer; and the negative conductive layer is connected to a negative surface of the laser chip; or, the first electrical and thermal conductive layer includes a positive area and a negative area which are insulated from each other; the laser chip includes a positive surface and a negative surface, the positive surface is bonded to the positive area, and the negative surface is connected to the negative area. 1. A cooler of a semiconductor laser , comprising:a heat sink, the heat sink comprising a liquid cooling circuit and an upper surface;a first insulation layer disposed on the upper surface of the heat sink;a first electrical and thermal conductive layer disposed on the first insulation layer;wherein:a laser chip and a negative conductive layer are disposed on different positions of the first electrical and thermal conductive layer; a positive surface of the laser chip is directly bonded on the first electrical and thermal conductive layer; an insulating interlayer is disposed between the negative conductive layer and a surface of the first electrical and thermal ...

Broadband data acquisition device of sub-band splice

The embodiments of the invention provide a broadband data acquisition device of sub-band splice. The device comprises an acquisition front end module, a data processing module and a main control module; the acquisition front end module comprises a down-conversion unit, a bandwidth selection unit, a control unit and a first control interface; the data processing module comprises a high sampling rate AD (analogue to digital converter), a high-speed multi-core digital signal processor, a first high-speed communication interface and a second control interface; the main control module comprises a logic control CPU (central processing unit), a second high-speed communication interface, a third control interface and a storage unit; the logic control CPU is used for setting the acquisition front end module and controlling the data processing module; the third control interface is connected with the first control interface and the second control interface; the second high-speed communication interface ...

Method for designing automobile body structure layout

The invention relates to a method for designing automobile body structure layout. The method comprises the following steps of: 1) initially setting the parameters of a new type automobile, 2) choosing the white automobile body finite element models having similar structures and sizes, or directly building a white automobile body finite element model, 3) generating a grid enveloped model according to the white automobile body finite element model, 4) generating a body grid model according to the grid enveloped model, 5) topologically optimizing and analyzing according to a target parameter based on the body grid model, 6) according to an analyzed result and drawing an automobile body material layout diagram, 7) designing conception according to the layout diagram, and 8) designing the layout structure in detail according to the data of the conception design, performing simulating analysis of strength, NVH and impact performance CAE and formability process analysis according to the data of ...

Anchor rod static pressure pile sinking construction method for existing underground garage

The invention belongs to the field of constructional engineering, and particularly relates to an existing underground garage anchor rod static pressure pile sinking construction method which comprises the steps that 1, a prestress stay cable balance weight device is installed and comprises a stand column connecting piece, a bottom plate connecting piece and a stay cable; 2, a pile pressing reaction frame is installed; and 3, pile pressing and pile splicing are conducted. The construction method is not limited by site space, under the condition that the basement space and the floor height of the existing building are limited, a traditional pile-loading balance weight method can be replaced, adverse factors generated by the traditional pile-loading balance weight method are avoided, construction is easy, and the problem that the pile pressing counter force of the anchor rod static pressure pile in the existing building is insufficient is solved.

Sediment releasing method for water intake of low-head river channel pivotal power station

The invention relates to a sediment releasing method for a water intake of a low-head river channel pivotal power station and belongs to the field of water conservancy projects, under the IPC numbers of E02B9/00, E02B9/04 and E02B1/00. According to the method, a sediment trap is arranged along the whole front edge of the power station water intake, a gallery for sediment transport is arranged in front of the sediment trap and connected with a dam base sediment tunnel, the top of the gallery for sediment transport is provided with a horizontal joint sediment outlet, the width of the horizontal joint sediment outlet gradually increases from the upstream, the cross section of the gallery for sediment transport gradually increases from the upstream. The sediment trap is used with the variable width joint type gallery for sediment transport so as to achieve the function of an intercepting channel, an elongated scour funnel can be formed in front of the sediment trap, and the sediment releasing ...

SYSTEM AND METHOD FOR SHARING LOGIN STATUS BETWEEN AN APPLICATION PLATFORM AND AN APPLICATION

A method for sharing login status between an application platform and an application, both running on a client device, is performed at a computer. In response to a login request from the client device, the computer analyzes the login request to determine whether the login request is associated with the application platform or the application. If the login request is with the application platform, the computer then establishes a first connection with an application platform server and forwards the login request to the application platform server. Upon receiving a login key from the application platform server, the computer returns the login key to the client device. If not, the computer establishes a second connection with an application server and forwards the login request to the application server. Upon receiving a login key from the application server, the computer then returns the login key to the client device.

Existing building whole-process load-holding settlement control method suitable for dynamic deformation

The invention discloses an existing building whole-process load-holding settlement control method suitable for dynamic deformation, and aims to provide the existing building whole-process load-holding settlement control method suitable for dynamic deformation, which can adapt to dynamic change of a building foundation soil body, effectively control settlement of an existing old building and ensure that the building is in a safe and controllable state. The device comprises a servo load-holding sinking control device. The existing building whole-process load-holding settlement control method suitable for dynamic deformation comprises the following steps that (1) a servo load-holding settlement control device is installed, and the servo load-holding settlement control device is installed according to the following steps of pile sinking; mounting a steel frame, wherein the steel frame is fixed on a foundation or a bottom plate of the building; installing a hydraulic jack, and placing the hydraulic ...

Alcohol gas sensor based on TeO2 nanowires and preparation method of alcohol gas sensor

The invention belongs to the technical field of gas sensors for one-dimensional semiconductor oxides, and in particular relates to an alcohol gas sensor based on TeO2 nanowires and a preparation method of the alcohol gas sensor. A gas-sensitive coating of the alcohol gas sensor comprises the TeO2 nanowires, wherein the TeO2 nanowires adopt a single tetragonal phase crystal structure, the surfaces are smooth, the diameters are 70-200nm, the lengths are 500 microns to 2 millimeters, and the highest length-diameter ratio is 2,9000. The preparation method of the gas sensor comprises the following steps: firstly, preparing the TeO2 nanowires, mixing the TeO2 nanowires with a binding agent to prepare slurry, coating the surface of a ceramic substrate with the slurry to form the gas-sensitive coating, and then carrying out heat treatment, thus finally obtaining the alcohol gas sensor based on the TeO2 nanowires. By adopting the method, the TeO2 nanowires which are good in crystallization, high ...

Electromagnetic wave-absorbing material with performance of improving oblique incidence

The invention belongs to the technical field of electronic materials, and relates to an electromagnetic wave-absorbing material with performance of improving oblique incidence. The electromagnetic wave-absorbing material comprises a metal substrate and an electromagnetic wave-absorbing material layer arranged on the metal substrate. The electromagnetic wave-absorbing material is characterized in that the electromagnetic wave-absorbing material layer is composed of wave-absorbing units arranged periodically, each wave-absorbing unit comprises an electromagnetic wave-absorbing material body with a round through hole, and metal thin films are arranged in the through holes in the direction of the metal substrate. The incident angle ranges from 0 degree to 45 degrees, and the wave absorption performance of the wave absorption structure in a TE polarization mode and a TM polarization mode is improved, especially in the TM polarization mode.

Recombined diphtheria toxin, preparation method, and application

Cascade reservoir optimal scheduling algorithm based on genetic algorithm and simulation program

The invention discloses a cascade reservoir optimal scheduling algorithm based on a genetic algorithm and a simulation program, and the algorithm comprises the steps: generating an initial population through the genetic algorithm; based on the initial population, applying a simulation program to carry out fitness solving; evolutionary operation is completed in a genetic algorithm; and ending the iteration times, and terminating the algorithm. The method can eliminate the influence of seismic source wavelets, and solves the problem that a traditional free surface related multiple suppression processing technology cannot adapt to seismic data collected in a seabed node observation mode. The genetic algorithm and the simulation program algorithm provided by the invention have stable and high output in cascade reservoirs of different scales, the total generating capacity of the cascade reservoirs can be remarkably improved, the output can be ensured, and the optimization effect is very good ...

Method, proxy server and system for sharing logging status between application platform and application

The invention discloses a method, a proxy server and a system for sharing a logging status between an application platform and an application. The method comprises the following steps: receiving a logging request sent at a front end by the proxy server; analyzing the logging request to acquire the type of a logging source; according to the type of the logging source, establishing communication connection with an application platform server or an application background server and sharing the logging status between the application platform and the application. The invention application platform and the application share connection with the proxy server through the front end, the logging request is sent to the proxy server through the front end, and the proxy server obtains the type of the logging source according to the logging request, correspondingly establishes the communication connection with the application platform server or the application background server and shares the logging ...

Novel vertical type oil-gas separator

The invention discloses a novel vertical type oil-gas separator. Oil-gas mixtures enter the oil-gas separator through a bending pipeline, centrifugal separation is formed in the bending pipeline, the oil-gas mixtures form collision separation with the wall surface of a horizontal barrel body after coming out from the bending pipeline, the oil-gas mixtures reversely flow after being collided, after the oil-gas mixtures penetrate through a W-shaped baffling perforated plate and a vertical perforated plate, part of oil drops are caught by the wall surfaces of the baffling perforated plate and the vertical perforated plate, and the oil-gas mixtures pass through a filter screen at uniform flow velocity to be filtered and separated so that the surplus oil drops are separated out. Multiple stages of separating devices are utilized to separate the oil drops out from the oil-gas mixtures, the separating efficiency is not affected by the machine set running state, and on the premise that the separating ...

Millimeter-wave SIW (substrate integrated waveguide) filter and design method thereof

The invention relates to a microwave and millimeter wave technology, in particular to an S wave-band SIW (substrate integrated waveguide) dual-ring ferrite phase shifter. The S wave-band SIW dual-ring ferrite phase shifter comprises an SIW transmitting wire, two identical ferrite square rings and a dielectric slice, wherein the two identical ferrite square rings are symmetrically arranged in the SIW transmitting wire; the dielectric slice is arranged between the two ferrite square rings; the two ferrite square rings cling to the dielectric slice; the heights of the ferrite square rings are equal to the height of the dielectric slice; the wall thicknesses of the ferrite square rings are 1mm-2mm; the widths of the ferrite square rings are half of the width of an SIW; the lengths of the ferrite square rings are equal to the length of the SIW; the thickness of the dielectric slice is smaller than 2mm; and the length of the dielectric slice is equal to that of the SIW. The S wave-band SIW dual-ring ...

Electric acupuncture apparatus based on accelerometer

The utility model provides an electric acupuncture apparatus based on accelerometer structurally includes singlechip, human -computer interaction keyboard, liquid crystal display module, digital analog converter, wave form output circuit, electric needle probe, accelerometer module. Human -computer interaction keyboard, liquid crystal display module, digital analog converter, accelerometer module link to each other with the singlechip. The analog voltage of digital analog converter output input wave form output circuit, electric needle probe be connected with wave form output circuit's output. Accelerometer place in the electric needle position of human body. The utility model discloses a shake degree is learnt to the value of gathering accelerometer, and the best pulse voltage value is exported to the automatic calculation, improves electric needle treatment.

Simulation test method and device, equipment and storage medium

The invention discloses a simulation test method, device and equipment and a storage medium, and belongs to the technical field of vehicles. According to the method, a virtual operation environment is created in a simulation test platform, and a first version of a domain controller program is loaded in the virtual operation environment. Based on the test requirements, creating a plurality of test scenes, and generating a plurality of test tasks matched with the plurality of test scenes; executing a plurality of test tasks in the virtual runtime environment based on the domain controller program; in response to the fact that the test results of the multiple test tasks do not meet the requirements, obtaining a domain controller program of a second version; and repeatedly executing the step of loading the domain controller program in the virtual running environment until the test results of the plurality of test tasks meet the requirements. According to the method, the domain controller program ...

Six-face fraction rotating drum angular error testing device and method

The invention relates to a six-face fraction rotating drum angular error testing device and method, in particular to a stochastic digital vision reading system using a photoelectric auto-collimator to conduct a six-face fraction rotating drum angular error test. The six-face fraction rotating drum angular error testing device and method are characterized in that the six-face fraction rotating drum angular error testing device comprises an optical dividing head, a reflecting mirror, an objective lens, a spectroscope, a cross reticle, a collecting lens, an area array CCD, a pattern collecting device, a computer and a light source, wherein the objective lens, the cross reticle, the collecting lens and the light source are arranged in sequence, the spectroscope is arranged between the objective lens and the cross reticle, the reflecting mirror is arranged between the objective lens and a six-face fraction rotating drum placed on the optical dividing head, the area array CCD is arranged below ...

Novel broadband electromagnetic wave polarization regulation electromagnetic structure

The invention provides a novel broadband electromagnetic wave polarization regulation electromagnetic structure, and is used for solving the problems that an existing polarization regulation electromagnetic structure is relatively narrow in polarization conversion bandwidth, low in polarization conversion efficiency and relatively large in structure thickness, and when an electromagnetic wave incident angle changes, a polarization regulation capability of the structure becomes poor and conversion bandwidth becomes narrow. The novel broadband electromagnetic wave polarization regulation electromagnetic structure includes three layers, a bottom layer is a metal plate, a middle layer is a medium substrate, and a surface layer is a periodical metal elliptical ring layer; and the period of the periodical metal elliptical ring layer is 7.0 to 11.0mm, and dimensions of the metal elliptical ring are as follows: a major semi axis of an outer ellipse is 3.5 to 6.5mm, a minor semi axis is 0.8 to 1.6mm ...

Air source heat pump system

The invention belongs to the technical field of drying, and particularly relates to an air source heat pump system. An existing heat pump drying system is still high in energy consumption and still has huge potential in the aspects of energy conservation and emission reduction. The used refrigerant can cause aggravation of the greenhouse effect; the working temperature range adaptability of the drying system is not high. The invention provides an air source heat pump system which comprises a centrifugal compressor, a drying box, a wet air expansion machine, a gas-liquid separator, a drying filter and a heat exchange assembly which are sequentially connected, the drying filter is connected with the centrifugal compressor, the heat exchange assembly is connected with the centrifugal compressor, and the drying box is connected with the drying filter. The centrifugal compressor is connected with the wet air expansion machine through a main shaft, and an indicator lamp is arranged on the drying ...

Image type labeling method based on phrase bag model

The invention provides an image type labeling method based on a phrase bag model, which introduces position information among vision words based on the existing bag-of-words model representation and provides the phrase bag model representation strategy. The method effectively solves the contradiction between insufficient discrimination because the traditional bag-of-words models lack position information and sensitivity to target displacement after adding the blocked position information, eliminates the sensitivity to target displacement in the image while introducing the position information among the vision words and increasing discrimination, effectively improves the performance of the image type labeling system and has important application value.

System and method for sharing login status between an application platform and an application

A method for sharing login status between an application platform and an application, both running on a client device, is performed at a computer. In response to a login request from the client device, the computer analyzes the login request to determine whether the login request is associated with the application platform or the application. If the login request is with the application platform, the computer then establishes a first connection with an application platform server and forwards the login request to the application platform server. Upon receiving a login key from the application platform server, the computer returns the login key to the client device. If not, the computer establishes a second connection with an application server and forwards the login request to the application server. Upon receiving a login key from the application server, the computer then returns the login key to the client device.

Reversible continuous structure deviation rectification construction method

The invention belongs to the field of buildings, and particularly relates to a reversible continuous structure deviation rectification construction method which comprises the steps that an upper bracket is installed on a component through an upper opposite-penetrating screw rod, a lower bracket is installed on the component through a lower opposite-penetrating screw rod, and the upper bracket is located at the upper end of the lower bracket; a jack is installed between the upper bracket and the lower bracket; the jack is loaded, the jack drives the upper bracket to move upwards, the component is cut into an upper section and a lower section, and a cut opening is formed; trimming the cut-off component, and installing a heightening assembly in a cut-off opening; the upper bracket, the lower bracket and the jack are dismantled, and the upper opposite-penetrating screw and the lower opposite-penetrating screw are reserved; an upper embracing column reinforcing section is installed on the component ...

Document similarity detecting method based on seed words

The invention relates to a document similarity detecting method based on seed words. The method includes: Chinese word segmentation and labeling, dictionary calculation, document expression by limited sentence sets, and document comparison. The method has the advantages that few sentences need to be processed during document comparison, and processing speed is increased; sentences with the words high in word frequency-inverse document frequency are selected during representative limited sentence set selecting, so that the selected limited sentence sets are representative in documents, and influence of unrelated or common-sense sentences on document similarity judging is eliminated; two sentences are compared in a word-by-word manner, so that the influence of similar contents and different narration manners is reduced; same words are weighed by inverse document frequency, higher weights are given to the words high in distinguishing performance, and comparison performance is increased.

Method and device for establishing finite element contact pair

The invention discloses a method and a device for establishing a finite element contact pair and belongs to the field of computer aided engineering. The method comprises the steps of receiving contact setting information set by a user, wherein the contact setting information comprises a master assembly to which a contact pair main surface belongs, a slave assembly to which a contact pair slave surface belongs, a contact position, the maximum distance between the contact pair master surface and the contact pair driven surface, and the maximum angle of the included angle between two adjacent shell units of the contact pair master surface or the maximum angle of the included angle between two adjacent shell units in the contact pair slave surface; determining a first contact area on the master assembly and determining a second contact area on the slave assembly according to the contact position, the maximum distance and the maximum angle; establishing a contact pair master surface according ...

Hydropower balance power station transaction plan analysis method and device in hydropower enrichment environment

The invention relates to a hydroelectric balance power station transaction plan analysis method and device in a hydroelectric enrichment environment, and the method comprises the steps: carrying out the incoming water change analysis of obtained historical drainage basin reservoir incoming water data, so as to evaluate the uncertainty of drainage basin incoming water, determine an incoming water scheme, and evaluating the power generation capability of a power station in each drainage basin according to the incoming water scheme; obtaining a monthly load curve based on the weekly proportion and the typical daily load curve; and analyzing the balancing power station transaction plan, judging whether electric power and electric quantity balance can be met or not, if so, outputting the balancing power station transaction plan, otherwise, adjusting monthly transaction electric quantity of each power station, and analyzing the balancing power station transaction plan again. According to the ...

Industrial vision test rack capable of rapidly replacing test elements

The invention discloses an industrial vision test rack capable of rapidly replacing test elements, and relates to the technical field of detection instruments. The device comprises a camera adjusting assembly, a main light source adjusting assembly and a base supporting assembly, the base supporting assembly is provided with a supporting rod used for supporting the camera adjusting assembly and the main light source adjusting assembly, and the camera adjusting assembly comprises a second sliding adjusting column, a first clamping block, a second clamping block and an elastic structure. The elastic structure is arranged between the first clamping block and the second clamping block and used for limiting the distance between the first clamping block and the second clamping block, the end of the second sliding adjusting column is fixedly connected with the first clamping block, and the second sliding adjusting column is connected with the supporting rod through a connecting piece. Through ...

Primer for detecting separation purity of X, Y spermatozoon of cattle

The invention provides a primer for detecting the X and Y sperm separation purity. Aiming at a sex-determining gene Sry on a bull Y chromosome, the primer is designed through the PCR mismatching technology. The fragment size can be amplified by 295 bp through the primer, in order to prevent false positive from appearing, a pair of internal control primers C34 is designed through the invention according to a bull autosome 3 reported sequence, the fragment size is amplified by 208bp, dual PCR amplification is performed to single bull sperm through the two pairs of primers, and then the final evaluation is performed to the sperm separation purity according to the statistical analysis to the detection result. The invention provides the technology used for identifying the bull X and Y sperm separation purity with low cost and simple, rapid, and accurate operation, and provides reliable technical support for the popularization and the application of the subsequent sexing semen and the optimization ...

Non-smooth structure brake disc and manufacturing method thereof

The invention relates to a brake disc with unsmooth structure for the vehicle brake and the manufacturing method thereof; on the brake disc body, unsmooth unit bodies which are distributed evenly and in staggered arrangement are machined on the area slid over by a friction plate; the diameter of the unit body is from 1mm-4mm; the unit body includes two types, including the sink pit shaped and the through hole inverted angle shaped; the unsmooth structure enables the distribution of the friction stress of the brake disc to be evener, so as to obtain the stable friction coefficient; discontinuous surface is formed on the friction surface; when a certain local part occurs the adhesive abrasion, the correlation degree of abrasion on other regions is reduced; the large area adhesive abrasion is prevented easily; the unsmooth structure has the capabilities of spalling, collecting, discharging the abrasive dust and the impurities and reducing the abrasive particle abrasion. The unsmooth structure ...

Configuration method for driving parameters of optical device

The invention discloses an optical device driving parameter configuration method, and belongs to the technical field of optical device equipment.The optical device driving parameter configuration method comprises the following steps that 100, a plurality of parameter sets are input into a test computer to establish a basic data set, the parameter set comprises a driving parameter for driving the optical device to generate an optical signal and a performance parameter of the optical signal; 200, the optical device to be configured is installed on the test circuit board, the test computer controls the test circuit board to write standard parameters into the optical device to be configured, whether an optical signal generated by the optical device is qualified or not is judged, if yes, the standard parameters are written into the optical device, and the optical device is taken down; if the standard parameters are not qualified, the step 300 is executed, and the standard parameters are preset ...

Double-track unbalanced fund prediction method and device in clean energy environment

The invention relates to a double-track unbalanced fund prediction method and device in a clean energy environment, and the method comprises the steps: obtaining the historical data of a clean energy power generation capability factor, and obtaining the corresponding general picture component time sequence data according to the historical data; determining an input node of a pre-constructed BP neural network, inputting the general picture component time sequence data as a training sample to the node so as to carry out iterative training on the BP neural network until an iteration condition is satisfied, and outputting a fund prediction model; and inputting the to-be-tested data of the clean energy power generation capability factors into the fund prediction model, and outputting a fund prediction result. According to the method, the initial weight and the initial threshold of the BP neural network are optimized by using the GWO, and the optimal position is sought according to multiple optimal ...

Novel fault diagnosis method based on information fusion

The invention relates to a novel fault diagnosis method based on information fusion, and belongs to the technical field of power grid fault diagnosis. According to the method, a suspected fault set obtaining module, a switch layer fault diagnosis module, an electrical layer fault diagnosis module and a diagnosis result decision and display module are included. By means of the method, fault diagnosis is carried out by combining switching value and electric quantity information according to captured warning information, and therefore fault elements are diagnosed. A suspected fault set is diagnosed according to the logical relationship of protection configuration and actions, and protection and breaker action reliability is added to elements in the suspected fault set on the basis of a classical optimized fault diagnosis model based on the switching values, so that the relative fault degrees of all lines are obtained; wavelet analysis is carried out on electrical quantities before and after ...

Prestressed anchor rod static pressure prefabricated reinforced concrete square pile and method

The invention discloses a prestressed anchor rod static pressure prefabricated reinforced concrete square pile which is composed of a prefabricated reinforced concrete square pile serving as a standard pile section, high-strength prestressed twisted steel, a pile tip section concrete square pile used for pile tip anchoring and a pile top tensioning end. When the prefabricated reinforced concrete square pile is prefabricated, a full-length reserved hole channel is reserved in the center of the section of a pile body. Compared with the prior art, the construction method has the following beneficial effects that (1) the channel is reserved, so that later-stage mounting and tensioning of the high-strength prestressed twisted steel are facilitated, the tension bearing capacity of the pile body adopting the high-strength prestressed steel is high, the number of common steel bars can be reduced, and the construction is only needed; the uplift bearing capacity of a single pile is not affected by ...

Fuel cell system

The invention belongs to the technical field of energy recovery, and particularly relates to a fuel cell system. In the prior art, only energy of gas after reaction of a fuel cell system is utilized, and internal energy in gas exhausted by a compressor cannot be utilized. The invention provides a fuel cell system which comprises a turbine, the turbine comprises a compression wheel, a main shaft, a moist air expansion wheel and a motor/generator which are connected in sequence, and the motor/generator is matched with the main shaft; the wet air expansion wheel, the water separator, the heat exchanger and the fuel cell are sequentially connected, the compression wheel, the heat exchanger, the air cooler and the air dryer are connected with the fuel cell, an electromagnetic valve is arranged between the turbine and the air dryer, and a three-way electromagnetic valve is arranged among the turbine, the water separator and the heat exchanger. High-temperature air at the outlet of the compressor ...

Cascade reservoir optimal scheduling algorithm based on SOS2 mixed integer linear programming

The invention discloses a cascade reservoir optimal scheduling algorithm based on SOS2 mixed integer linear programming. The cascade reservoir optimal scheduling algorithm comprises the following steps: establishing a trapezoidal reservoir optimal scheduling model; determining an interpolation range of data based on the optimization scheduling model, selecting grid points, and generating a two-dimensional grid; a weight value is given to each grid point, and optimization is carried out under the SOS2 constraint condition; and calculating the optimized weight value, solving an optimal solution and outputting the optimal solution. The mixed integer linear programming (MILP) algorithm framework provided by the invention is high in calculation efficiency, and the calculation time of the method is linearly increased along with the increase of the number of reservoirs. The mixed integer linear programming (MILP) algorithm framework provided by the invention carries out piecewise linear processing ...

Image classification method based on category correlated codebook and classifier voting strategy

The invention discloses an image classification method based on a category correlated codebook and a classifier voting strategy. The method comprises the following steps of: expressing an image as a set of local salient region image blocks by an image data set pre-processing module; generating category correlated codebooks by a category correlated codebook generating module; expressing the image as an image vector by an image vectoring module, and training a classifier between two random categories by selecting the trained image vector and a category tag corresponding to the trained image through a category correlated classifier training module; and finally, determining the category tag of the tested image according to voting results by a classifier-voting-strategy-based tested image classifying module. The category correlated codebook generating module effectively solves the contradiction of dimension disaster caused by over large codebooks and judgment insufficiency caused by over small ...

Sediment releasing system for water intake of low-head river channel pivotal power station

The invention relates to a sediment releasing system for a water intake of a low-head river channel pivotal power station and belongs to the field of water conservancy projects, under the PIC numbers of E02B9/00, E02B9/04 and E02B1/00. The system is characterized in that a sediment trap is arranged along the whole front edge of the power station water intake, a gallery for sediment transport is arranged in front of the sediment trap and connected with a dam base sediment tunnel, the top of the gallery for sediment transport is provided with a horizontal joint sediment outlet, the width of the horizontal joint sediment outlet gradually increases from the upstream, the cross section of the gallery for sediment transport gradually increases from the upstream. The sediment trap is used with the variable width joint type gallery for sediment transport so as to achieve the function of an intercepting channel, an elongated scour funnel can be formed in front of the sediment trap, and the sediment ...

Vibration damping and energy-absorbing device of vehicle auxiliary frame and method thereof

The invention discloses a vibration damping and energy absorption method for an automobile sub-frame, which comprises the steps of (1) performing finite-element analysis to an sub-frame to obtain the quality, the first-order bending mode and the corresponding maximum displacement site of the sub-frame; (2) arranging a mass block with an elastic damping system to damp vibration and absorb energy; and (3) performing modal analysis and experimental verification on the improved sub-frame to correct the elastic damping system and the mass block parameters. The inventive method does not change the current structure of the sub-frame, and arranges the mass block with the elastic damping system in a specific position on the sub-frame to reduce the vibration amplitude by utilizing the principle of resonance energy absorption, so as to reduce the transmission of vibration toward automobile body. The method can also adjust the frequency of vibration damping and energy absorption devices by adjusting ...

Falling film evaporator

The invention discloses a falling film evaporator which comprises a barrel. An upper distributor is arranged on the inner upper side of the barrel, gas barriers are respectively arranged on two sides of the top of the upper distributor, sawteeth are at least arranged at the edge of the gas barrier on a side of the top of the upper distributor, a gas flowing channel is formed by the sawteeth and the inner wall of the barrel in an encircled manner and is communicated with a gas refrigerant outlet, turbulent flow plates are respectively arranged at the bottoms of two side walls of the upper distributor, an upper heat exchange tube nest is arranged below the upper distributor, a lower heat exchange tube nest is arranged below the upper heat exchange tube nest, an oil-rich area is arranged below the lower heat exchange tube nest and is provided with a liquid level sensor, a signal output end of the liquid level sensor is connected with a signal input end of a throttle device, and oil return ...

Hand braking operation device

The invention provides a hand braking operation device which is applied to the field of automobile braking, comprising a handle (1), a bracket (2), a pull-wire mounting plate (3) and a dental plate (13), wherein the pull-wire mounting plate (3) and the dental plate (13) are movably arranged on the bracket (2) by a spindle, the lower end of the dental plate (13) is provided with a ratchet (22), the lower part of the bracket (2) is near a pawl (4) of the dental plate (13), a connecting pin (7) which is used for sheathing a positioning spring (8) is connected with the pawl (4), the pawl (4) is against the lower end of the dental plate (13), a pawl return rod (10) is movably arranged on the bracket (2) by a return rod shaft (11). In the technical scheme of the invention, when carrying out the hand braking operation, a user can park or lift a park by just pulling up the handle rather than pressing a hand braking button. The invention has the advantages of easy operation, good safety and reliability ...

Fresh air proportion control method for air conditioning system of electric vehicle

The invention discloses a fresh air proportion control method for an air conditioning system of an electric vehicle, which comprises the following processes: when an air conditioner starts to start, a ventilation system runs in a full internal circulation mode, and the CO2 concentration in the vehicle is monitored in the running process; when the air conditioning system is under the refrigeration working condition, the ventilation proportion is calculated according to the CO2 concentration, ventilation modes are switched according to the ventilation proportion, and the fresh air proportion of the air conditioning system is adjusted; when the air conditioning system is in the heating working condition, the ventilation proportion is calculated according to the CO2 concentration and the glass fogging constraint, the ventilation modes are switched according to the ventilation proportion, and the fresh air proportion of the air conditioning system is adjusted. The fresh air proportion can be ...

Heat dissipation device for computer hardware

The utility model discloses a heat dissipation device for computer hardware, which belongs to the technical field of heat dissipation devices for computer hardware and comprises a mainframe box side plate, the mainframe box side plate is a part of a computer mainframe box and is provided with heat dissipation holes, a connecting plate is fixedly mounted on the mainframe box side plate, and a sliding groove is formed in the connecting plate. The fixing frame is connected into the sliding groove in a sliding mode, the dustproof gauze element is fixedly connected into the fixing frame, the pull ring is fixedly connected to the upper portion of the fixing frame, the face, close to the main case side plate, of the fixing frame is fixedly connected with the dustproof sponge, and the fixing mechanism is arranged above the side edge of the fixing frame. Time and labor are saved.

Ultra-narrow linewidth laser system

The invention discloses an ultra-narrow linewidth laser system, which relates to the field of ultra-narrow linewidth laser, and is characterized in that a beam splitting module, an electro-optical modulator, an adjusting module, a quarter-wave plate and an optical reference cavity are sequentially arranged in the system; the beam splitting module is arranged on a laser output light path of the laser; laser generates a reflected light beam and a transmitted light beam through the beam splitting module; the electro-optical modulation module is used for performing phase modulation on transmitted beams; the adjusting module is used for adjusting the optical power coupled into the optical reference cavity; transmission light of the adjusting module enters the optical reference cavity through the quarter-wave plate; reflected light and transmission light of the optical reference cavity sequentially pass through the quarter-wave plate, the adjusting module and the photoelectric detector; the electro-optical ...

Metal-wire-loading type electromagnetic wave absorption structure improving performances of oblique incidence

The invention relates to a metal-wire-loading type electromagnetic wave absorption structure improving the performances of oblique incidence, belongs to the technical field of electronic materials, and especially relates to an electromagnetic wave absorption structure and a method therefor. The structure consists of M*N square wave absorption units, wherein M is the number of rows, N is the number of columns, and the M and N are both natural numbers greater than two. Each square wave absorption unit comprises a metal plate and a magnetic wave-absorption material layer disposed on the metal plate, wherein the interior of the wave-absorption material layer is provided with a metal wire, and the direction of the metal wire is parallel to a side of the square wave absorption unit. Moreover, the directions of the metal wires of all the square wave absorption units are the same, and the lengths of the metal wires are less than the side lengths of the square wave absorption units. The structure ...

Method and device for measuring and calculating power spot flexible resource capacity demand

The invention relates to a power spot flexibility resource capacity demand measuring and calculating method and device, and the method comprises the steps: obtaining unit output data and unit parameters, and calculating a correlation coefficient matrix; screening historical similar days of the reference measurement and calculation unit; clustering analysis is carried out to obtain multi-class time period data; calculating an output deviation/climbing event probability distribution function of the clean energy unit; calculating flexible resource capacity requirements of multiple types of time periods; performing statistics on flexible resource capacity requirements of all units of the type of clean energy; and the flexibility resource total capacity demand of the power system is obtained. According to the method, higher requirements on the flexible resource capacity of the system due to output deviation or a climbing event caused by the output uncertainty of the clean energy unit during ...

Primer for detecting separation purity of X, Y spermatozoon of cattle

The invention provides a primer for detecting the X and Y sperm separation purity. Aiming at a sex-determining gene Sry on a bull Y chromosome, the primer is designed through the PCR mismatching technology. The fragment size can be amplified by 295 bp through the primer, in order to prevent false positive from appearing, a pair of internal control primers C34 is designed through the invention according to a bull autosome 3 reported sequence, the fragment size is amplified by 208bp, dual PCR amplification is performed to single bull sperm through the two pairs of primers, and then the final evaluation is performed to the sperm separation purity according to the statistical analysis to the detection result. The invention provides the technology used for identifying the bull X and Y sperm separation purity with low cost and simple, rapid, and accurate operation, and provides reliable technical support for the popularization and the application of the subsequent sexing semen and the optimization ...

FALLING FILM EVAPORATOR

The present application discloses a falling film evaporator including a barrel that is provided with an upper distributor at an inner upper side thereof, gas barriers are respectively provided at both sides of the top of the upper distributor, at least one gas barrier is provided with sawteeth at the edge thereof, a gas flowing channel is formed by the sawteeth and the inner wall of the barrel in an encircled manner and is communicated with the gas refrigerant outlet, at the bottom of the both side walls of the upper distributor is respectively provided with a turbulent flow plate, an upper heat exchange tube group is provided below the upper distributor, a lower heat exchange tube group is provided below the upper heat exchange tube group, an oil enriched area provided with a liquid level sensor is provided below the lower heat exchange tube group, a signal output end of the liquid level sensor is connected with a signal input end of the throttle device, and oil return ports are opened at the oil enriched area. The falling film evaporator may switch between full falling film heat exchange mode and mixed falling film heat exchange mode, thereby preventing refrigerant dripping to the bottom for use in heat exchange from being insufficient or preventing refrigerant filling quantity from being too large, and meanwhile also avoiding the phenomenon of carrying liquid during air suction and improving heat transfer coefficient and heat exchange efficiency. 1. A falling film evaporator , comprising:{'b': 1', '2, 'a barrel () provided with tube plates at both ends of said barrel and with a liquid refrigerant inlet () and a gas refrigerant outlet at the top of said barrel;'}{'b': '2', 'a throttle device provided at the liquid refrigerant inlet (), wherein{'b': 3', '1, 'an upper distributor () is provided at inner upper side of said barrel (),'}{'b': 4', '3', '5, 'a gas barrier () is respectively provided at both sides of the top of said upper distributor () and at least one ...

System and method for sharing login status between an application platform and an application

System and method for sharing login status between an application platform and an application

System and method for sharing login status between an application platform and an application

A method for sharing login status between an application platform and an application, both running on a client device, is performed at a computer. In response to a login request from the client device, the computer analyzes the login request to determine whether the login request is associated with the application platform or the application. If the login request is with the application platform, the computer then establishes a first connection with an application platform server and forwards the login request to the application platform server. Upon receiving a login key from the application platform server, the computer returns the login key to the client device. If not, the computer establishes a second connection with an application server and forwards the login request to the application server. Upon receiving a login key from the application server, the computer then returns the login key to the client device.