Preparation method of photo-thermal Janus nanofiber composite membrane for membrane distillation

The invention relates to a preparation method of a photo-thermal Janus nanofiber composite membrane for membrane distillation, which comprises the following steps: (1) preparing a super-hydrophobic polyvinylidene fluoride dendritic nanofiber membrane (SHTLNMs) through electrostatic spinning, (2) spinning a layer of hydrophilic dendritic nanofiber membrane on the basis of the SHTLNMs prepared in the step (1) by adopting an electrostatic spinning technology, and (3) preparing the photo-thermal Janus nanofiber composite membrane for membrane distillation. Preparing a hydrophilic/hydrophobic dendritic nanofiber composite membrane (Janus TLNMs); and (3) growing a copper-based metal-organic framework material Cu-CAT in situ on the hydrophilic surface of the Janus TLNMs membrane prepared in the step (2) by adopting a solvothermal method, and preparing the photo-thermal hydrophilic/hydrophobic dendritic nanofiber composite membrane (P-Janus TLNMs). The photo-thermal Janus nanofiber composite membrane ...

Portable middling pressure switch spare parts bin

The utility model relates to a portable middling pressure switch spare parts bin belongs to electric power and overhauls equipment technical field. The structure of device includes box, case lid and backing plate, hinge and casing cover connection are passed through to box one side, and the backing plate is arranged in the box, sets up corresponding hole according to the kind and the quantity of spare parts at the backing plate. Utilize the technical scheme of the utility model, spare parts commonly used are stored in the case in can overhauing daily electric power, and very big easy job personnel use, have very strong pertinence and practicality.

Electrostatic spinning solution of polyvinylidene fluoride and preparation method of electrostatic spinning solution

The invention relates to an electrostatic spinning solution of polyvinylidene fluoride. The electrostatic spinning solution is characterized by being used for producing a dendritic polyvinylidene fluoride nanofiber membrane, and being prepared from polyvinylidene fluoride, an organic branched salt, a plasticizer and a solvent. The preparation method comprises dissolution of polyvinylidene fluoride and dispersion of the organic branched salt. The dendritic polyvinylidene fluoride nanofiber membrane prepared from the spinning solution disclosed by the invention has excellent blocking and adsorption properties; the filtering efficiencies of the dendritic polyvinylidene fluoride nanofiber membrane with the gram weight being 1g/m<2> on 0.26mu m of sodium chloride particles in air and 0.3mu m of polystyrene particles in a water solution both reach over 99%; and the preparation method has a wide application prospect in the fields of filtration and protection.

Construction method for rapid tunneling of sylvite ore

The construction method comprises the following steps of tunneling branch roadway planning, I area tunneling preparation, I area tunneling, II area tunneling preparation, II area tunneling, III area tunneling preparation and III area tunneling, and after tunneling operation is completed, the steps are repeated to automatically move to the next tunneling face for tunneling. The problems that transportation is discontinuous after the potassic salt ore is tunneled, moving and reversing are difficult, and the period is long are solved, rapid tunneling of roadways, rapid transportation of materials and rapid moving of equipment are achieved, and the tunneling efficiency of the whole mining area is improved.

Process for cementing and filling underground working surface strips

The invention discloses an underground working face strip cemented filling process, belongs to the field of coal mine filling mining, and particularly relates to an underground working face strip cemented filling process method which is used for solving the problem that all cemented filling materials of an existing working face are high in cost and indirectly improving the economic benefits of a mining area. Meanwhile, the top plate can be protected in a targeted mode, damage of periodic pressure to the hydraulic support is reduced, and the service life is prolonged.

Multi -functional vehicle event data recorder with automatic adjustment function

The utility model discloses a multi -functional vehicle event data recorder with automatic adjustment function, including vehicle event data recorder shell, battery and the main control circuit board the front end of vehicle event data recorder shell is equipped with the arch, bee calling organ is installed to bellied both sides, infrared ray light filling LED lamp is installed to bellied inboard, and infrared ray light filling LED lamp is the annular and arranges that high definition digtal camera is installed to the inboard of infrared ray light filling LED lamp, and high definition digtal camera is located protruding inboard center department, the top of vehicle event data recorder shell is passed through the telescopic link and is connected with a flexible section of thick bamboo, install on pasting the device at the top of a flexible section of thick bamboo, speedtransmitter, ARM microprocessor and data memory are installed to the inside one side of vehicle event data recorder shell ...

Safety belt linkage

The utility model relates to a safety belt linkage, the device include bandage and fixed plate, be provided with the link on the fixed plate, the articulated chain that is provided with of tip of fixed plate, it is provided with blocking device to slide on the chain, the bandage is fixed to be set up blocking device is last. Blocking device has the shutting function, realizes arbitrary position location on the chain. The position of link can be adjusted, after the bandage at fixed good both ends, adjust the both ends chain length alright adjust the position of link, the operation personnel can carry out work with the safety belt is fixed, when treating that the operation personnel need the short distance to shift operating position, remove blocking device, adjust the link position, the fixed back continuation work of shutting again is convenient, save time.

Dual -purpose active particles tweezers of centre gripping and propelling movement

The utility model discloses a dual -purpose active particles tweezers of centre gripping and propelling movement includes first tweezers handle, second tweezers handle, aim at mouthful, aim at pole, fixed slot, fixed knee, first particle splint, second particle splint, and first tweezers handle is connected with second tweezers handle, on first tweezers handle mouthful is located to the alignment, the alignment pole to locate second tweezers handle first -class, the beneficial effect of the utility model a dual -purpose active particles tweezers of centre gripping and propelling movement adds eight structure composing dual -purpose active particles tweezers of centre gripping and propelling movement such as a tweezers handle, first particle splint, second particle splint are by fixed semi -ring, the splint mouth, the active particles splint are constituteed, aim at the mouth and aim at the coincidence of rod form, aim at mouthful and aim at the coincidence of rod form and can make a centre ...

Testing method and device for signaling analysis platform, equipment and medium

The embodiment of the invention discloses a testing method and device for a signaling analysis platform, equipment and a medium. The testing method for the signaling analysis platform specifically comprises the following steps: constructing an abnormal signaling message, and determining target abnormal information corresponding to the abnormal signaling message; wherein the abnormal signaling message comprises at least one of an abnormal format signaling message, an abnormal direction signaling message and an abnormal behavior signaling message; inputting the abnormal signaling message to a signaling analysis platform, and obtaining platform abnormal information fed back by the signaling analysis platform according to the abnormal signaling message; and according to the target exception information and the platform exception information, performing a signaling exception identification test on the signaling analysis platform. According to the technical scheme provided by the embodiment of ...

Tablet computer device

Automatic opening device for door lock of automobile encountering water

The invention discloses a device ensuring automobile safety, and particularly relates to an automatic opening device for a door lock of an automobile encountering water. The automatic opening device comprises a lithium battery, an immersion probe and a relay. The positive and negative electrodes of the lithium battery are connected with the positive and negative electrodes of a charging module of the automobile. The positive electrode of a relay coil is connected with the positive electrode of the lithium battery through a normally-open terminal of the immersion probe. The negative electrode of the relay coil is directly connected with the negative electrode of the lithium battery. Two normally-closed terminals of the relay are connected to the two ends of a motor of the door lock of the automobile in series. The static ends of two normally-open terminals of the relay are connected to the two ends of the motor of the door lock of the automobile respectively. The suction ends of the two ...

Double resonant vibrations and double promptings longitudinal vibration transducer

Point-to-point file transmission method and system

The invention relates to point-to-point file transmission method and system suitable for transmitting a file to a downloading endpoint from an uploading endpoint through a network. The point-to-point file transmission method comprises the following steps of: firstly sharing one or more segments of the file by using the uploading endpoint, then selecting one segment of the file to advise the downloading endpoint to select downloading. Accordingly, the invention can prolong the survival time of the segment in the network and shorten the time required for scattering the segments to increase the quantity of the endpoints capable of providing uploading.

Robot

The utility model relates to a robot which comprises a body, an overturning piece and a driving piece, the overturning piece is rotatably arranged on the body, a first functional piece is arranged on the first face of the overturning piece, a second functional piece is arranged on the second face of the overturning piece, and the driving piece is arranged on the body and is in transmission connection with the overturning piece. Driving the turnover piece to turn over to show the first functional piece or the second functional piece; the overturning piece shows that the first functional piece is in a first use state, and the overturning piece shows that the second functional piece is in a second use state. The driving piece drives the overturning piece to rotate relative to the body, multiple functions can be achieved on the same part through flexible switching, the using requirement of multiple functions is met, and the size of the robot does not need to be additionally increased due to ...

Power equipment fastener positioner that punches

The utility model relates to a power equipment fastener positioner that punches, including pilot pin, rail block and a plurality of guide rail arm, rail block is last along vertically being provided with the rail block through -hole, a plurality of guide rail arms articulated, rail block slides and sets up on the guide rail arm, rail block's bottom is along vertically being provided with the wind spring, the pilot pin link up the setting in the axis through -hole and rail block through -hole of wind spring, the last fixing device that is provided with of rail block, the articulated department of a plurality of guide rail arms be provided with the 2nd fixing device. The positioner that should punch, small, application method is simple, and portable is applicable to the location work of power equipment fastener, has lightened working strength, has improved work efficiency.

Notebook computer layer board of heat dissipation and illumination

The utility model discloses a notebook computer layer board of heat dissipation and illumination, the connecting seat is fixed on the left surface of notebook computer layer board main part, adjusting nut sets up the inside at the connecting seat, the telescopic link sets up the top at the connecting seat, the pivot sets up the top at the telescopic link, the right side of pivot is equipped with the connecting block, the bolt fastening is in the inside of connecting block, lighting device sets up the right side at the connecting block, the spout is disposed under the connecting seat, the middle part of notebook computer layer board main part is equipped with the heat dissipation chamber, the heat dissipation fan sets up the inside in the heat dissipation chamber, direct current motor sets up the top at the heat dissipation fan, the surface of device setting at direct current motor of making an uproar falls, the blotter sets up the surface in notebook computer layer board main part, the ...

Preparation method of dendritic nanofiber photo-thermal composite membrane for membrane distillation

The invention relates to a preparation method of a dendritic nanofiber photo-thermal composite membrane for membrane distillation, which is characterized by comprising the following three steps: (1) preparing a polyvinylidene fluoride dendritic nanofiber membrane (PVDF-TLNMs) by electrostatic spinning, (2) growing a copper-based metal-organic framework material Cu-CAT on the surface of the PVDF-TLNMs in situ by a solvothermal method, and preparing a Cu-CAT-TLNMs photo-thermal membrane. And (3) the polyvinylidene fluoride dendritic nanofiber membrane and the Cu-CAT (at) TLNMs photo-thermal membrane are subjected to hot pressing compounding, and the Cu-CAT (at) TLNMs-TLNMs nanofiber photo-thermal composite membrane is obtained. The nanofiber photo-thermal composite membrane with the dendritic multilevel structure for membrane distillation, which is prepared by adopting an electrostatic spinning technology, has high specific surface area, high energy utilization rate, high permeation flux ...

Amolops loloensis insulin release promoting peptide and use in producing medicine

Gene sequence for coding streptococcus suis protective antigen, protein and application thereof

The invention relates to a gene sequence for coding a streptococcus suis protective antigen, a protein and application thereof. The method comprises the following steps: artificially synthesizing a nucleotide sequence as shown in SEQ. No: 1; a nucleotide sequence is amplified by using a primer pair with EcoRI and XhoI restriction enzyme cutting sites, an obtained target gene PCR product and pET-28a positive plasmids are subjected to double restriction enzyme cutting treatment by using EcoRI and XhoI enzymes and then are connected, expression of a recombinant protein aa-ABC is induced, and the protective antigen aa-ABC is obtained and can significantly improve the antibody level of mice, so that the protective antigen aa-ABC has a good application prospect. And a better immune protection effect can be provided for infection of type-2, type-7 and type-9 streptococcus suis.

Deployment method for enrichment high-yield well of fault control fracture-vug type oil and gas reservoir

The invention provides a method for deploying an enrichment high-yield well of a fault control fracture-cavity type oil and gas reservoir, which comprises the following steps of: S1, constructing a hydrocarbon source rock geologic model, carrying out seismic forward modeling on the geologic model to obtain a relationship between the thickness of a hydrocarbon source rock and an amplitude attribute, and further predicting the thickness of the hydrocarbon source rock by utilizing seismic data, evaluating the generality of each position according to the height of each position of the top surface of the hydrocarbon source rock group; s2, calculating the discontinuity attribute of the seismic data, determining a discontinuity attribute threshold value representing the development of the fault control fracture-cavity body, carrying out the spatial engraving of the fault control fracture-cavity body, and obtaining the scale evaluation of the reservoir body through the spatial distribution of the ...

Proxy service device using temporary storage management and data transmission load balance and method thereof

The invention discloses a proxy service device using temporary storage management and data transmission load balance and a method thereof. A torrent file detector detects an original torrent file from an external domain. A point-to-point acting server control unit modifies the original torrent file to generate a modified torrent file, and transfers the modified torrent file to a terminal machine in an internal domain. An internal point-to-point tracking server receives inquiry information, and replies to the terminal machine according to response information. A temporary storage device is used for storing the shared content temporarily. An external stimulated point-to-point engine loads the original torrent file. An internal stimulated point-to-point engine checks whether the temporary storage device has the shared content according to the request information; if the device has the shared content, the shared content is read from the temporary storage device and is transferred to the terminal ...

Device for oil intermingling between airplanes

The utility model provides a device for intermingling oil between airplanes, which comprises a first joint for connecting a fuel tank of an airplane needing oil pumping, a second joint for connecting a fuel tank of an airplane needing oil filling, and a first flow direction selector which is respectively connected with the first joint, an inlet of an oil pump and an outlet of a spare fuel tank through pipelines. The second flow direction selector is connected with the second connector, an outlet of the oil pump and an inlet of the standby oil tank through pipelines, a fuel sensor is arranged on the pipeline between the first flow direction selector and the inlet of the oil pump, the fuel sensor is connected with a controller, and the controller is connected with the oil pump. The scheme is used for oil intermingling between aircrafts, the oil pump is connected with the two oil tank connectors through the fuel oil pipelines, the connectors are connected with the fuel oil tanks of the two ...

Management method and system for library in configuration software

The invention discloses a management method and a management system for a library in configuration software. The method comprises the following steps of: acquiring a modifying instruction; modifying the current library according to the modifying instruction; backing up the information of the current library and the modified library information; and outputting the current library information or the modified library information to a user according to a call request for the current library from the user. By using the method and the system, the modified library is prevented from being taken as the reference by an external task so as not to cause error when the original library is modified; and meanwhile, the redundancy of the user-defined library can be prevented due to the modification of the library.

Blend superfine fiber diaphragm for lithium ion battery

The invention relates to a blend superfine fiber diaphragm for a lithium ion battery. The blend superfine fiber diaphragm is characterized by comprising polyvinylidene fluoride, cellulose acetate and polyhedral oligomeric silsesquioxane. The polyhedral oligomeric silsesquioxane is one of alkyl silsesquioxane, alkenyl silsesquioxane or aryl silsesquioxane. The blend superfine fiber diaphragm provided by the invention has good hydrophilcity, high strength and excellent thermal size stability; the solution absorbing rate of the blend superfine fiber diaphragm is 300-900 percent, the thermal shrinkage rate of the blend superfine fiber diaphragm is smaller than 5 percent, the specific capacity of a gel polymer lithium ion battery assembled by adopting the blend superfine fiber diaphragm reaches 200-220 mAh.g<-1>, and the lithium intercalation utilization rate of an anode material LiCoO2 can reach above 70 percent.

Point-to-point communication device using point-to-point proxy service and method thereof

The invention discloses a network gateway device. A point-to-point ultra-description file detector detects the original point-to-point ultra-description file from the public domain. A point-to-point acting server control unit modifies the original point-to-point ultra-description file to generate a modified point-to-point ultra-description file, and transfers the modified point-to-point ultra-description file to the computer in a private domain. An internal point-to-point tracking server receives a first inquiry information, and replies a pseudo-sharing computer list to the computer. A point-to-point engine loads the original point-to-point ultra-description file, downloads the fragments of the shared file, and transfers the loaded fragments of the shared file to the computer.

Wheeled chair

The utility model provides a wheeled chair, it includes frame, seat, front wheel, rear wheel and guide pulley group, the seat is provided frame upper portion, the front wheel is provided the front end bottom of frame, the rear wheel is provided the rear end bottom of frame, the both sides that wheeled chair is provided in guide pulley group, when wheeled chair is close to the wall, guide pulley group rolls with wall contact and production, makes to keep the interval between frame, seat, front wheel, rear wheel and the wall. Adopt the utility model discloses, can solve wheeled chair marchs the in -process and is close to the problem that the wall blocked.

Miniature tank detection instrument

The utility model discloses a miniature tank detection instrument: its structure includes that first track, a front wheel drive device, upper and lower head, a rear wheel drive, double message pick -up emitter, the 2nd rear wheel drive, degree turn to device, the 2nd front wheel drive device, second track, connecting device, detecting head device, preceding bearing device, track fritter device, afterwards bearing device, degree turn to casing, damping device, tank detection instrument main part, first track and tank detection instrument main part swing joint, second track and tank detection instrument main part fixed connection, be equipped with a front wheel drive device and a rear wheel drive in the first track, the second track is inside to be equipped with the 2nd front wheel drive device and the 2nd rear wheel drive, has caterpillar drive, can depend on electric drive, also has signalling receiving arrangement, can remote operation and the on -the -spot information of conveying.

Electrostatic spinning solution capable of producing dendritic nylon 6 nano fiber membrane

The invention relates to an electrostatic spinning solution capable of producing a dendritic nylon 6 nano fiber membrane. The electrostatic spinning solution is characterized by comprising nylon 6, organic branched salt, a plasticiser and a solvent. A preparation method comprises the steps of dissolution of the nylon 6 and dispersion of the branched salt. The dendritic nylon 6 nano fiber membrane prepared by adopting the electrostatic spinning solution has excellent obstruction and adsorption property; the dendritic nylon 6 nano fiber membrane with the gram weight being 1g/m<2> achieves the filter efficiency more than 99.5% on a 0.26-micrometer sodium chloride particles in air and a 0.3-micrometer polyphenylether microparticle contained in a water solution and has wide application prospect in the field of filtration and protection.

Self-moving type multifunctional roof breaking device for crossheading

The invention discloses a self-moving type multifunctional roof breaking device for a crossheading. The device comprises a front frame, a rear frame and a frame connecting jack for connecting the front frame and the rear frame. The rear frame comprises a rear base, stand columns vertically arranged at the four corners of the rear base respectively, a supporting top beam and a top breaking top beam, the supporting top beam and the top breaking top beam are connected with every two stand columns respectively, and a top breaking module or a net cutting module is arranged on the top breaking top beam. The frame connecting jack is connected with the connecting point behind the front frame and the connecting point in front of the rear frame, so that the self-moving operation of pushing the front frame and pulling the rear frame is realized.

Three-phase AC asynchronous motor for YDAX series of electric automobiles

The invention discloses a three-phase AC asynchronous motor for YDAX series of electric automobiles, which is provided with a machine shell, a stator and a rotor, wherein the slenderness ratio of the motor is 1.3-6.0, heat radiating fins on the machine shell are vertically and uniformly distributed on the circumference of an engine base, and a wire exit is arranged at the rear end of the engine base; the rotor has two shafts; a magnetic permeability material adopts a low-loss cold rolled silicon steel plate which has reasonable electromagnetic load design so that the efficiency is 1-5 percenthigher than that of a common high-efficient motor; an air gap between the stator and the rotor is increased by 0.3-0.4 times, slot combination adopts 36/28 or 36/33 or 54/44 or 72/64, the slot shape of the rotor adopts a pear-shaped round bottom or pear-shaped flat bottom or convex symmetrical or asymmetrical slot shape, and three-phase windings of the motor adopt a Y-shaped connection method with a ...

Preparation method and application of buckwheat active peptides

The invention discloses a preparation method of buckwheat active peptides. The method comprises the following steps: drying, crushing and degreasing buckwheat seeds to obtain buckwheat powder; with the buckwheat powder as a raw material, extracting water-soluble protein of buckwheat by employing an ammonium sulfate precipitation method to obtain a buckwheat protein extract; sequentially carrying out enzymolysis on the buckwheat protein extract with pepsin and trypsin, so as to prepare enzymatic polypeptide fragments; carrying out separation and purification on the enzymatic polypeptide fragments through gel filtration; and detecting by virtue of an ultraviolet detector 280nm, and collecting separate peaks, so as to obtain the buckwheat active peptides. Two novel buckwheat active peptides are obtained by the method. The invention further provides an application of the two buckwheat active peptides as feed additives. The buckwheat active peptides disclosed by the invention are capable of ...

Preparation method of E183L gene colloidal gold test strip for detecting African swine fever antibody

The invention relates to a preparation method of an E183L gene colloidal gold test strip for detecting an African swine fever antibody, and belongs to the technical field of molecular diagnosis. In order to overcome the defects in the prior art, the invention provides a preparation method of a colloidal gold test strip for detecting an African swine fever antibody, which comprises the following steps: respectively synthesizing E183L gene of ASFV and Fc gene of swine IgG, creatively adding flexible protein gene between the genes to construct an expression vector, converting the expression vector into competent cells, and performing induced expression to obtain the colloidal gold test strip for detecting the African swine fever antibody. The expressed ASFV recombinant protein is used as a detection band after being extracted and purified, staphylococcus aureus protein A is used as a quality control band, the sensitivity of the test strip can reach 1: 320, the specificity is good, no cross ...

Mining and filling system and method based on in-situ separation of underground coal gangue

The invention relates to a mining and filling system and method based on underground coal and gangue on-site sorting, the mining and filling system comprises a coal and gangue sorting treatment system, a belt conveying system and a support system, the coal and gangue sorting treatment system is used for being arranged in an underground transversely extending sorting roadway, and the sorting roadway is communicated with a front-end working face through a coal conveying roadway and a gangue returning roadway; the belt conveying system comprises a belt coal conveying mechanism and a belt waste rock returning mechanism, the belt coal conveying mechanism is located in the coal conveying roadway and used for conveying coal waste rock generated by coal mining operation to the coal waste rock sorting treatment system for on-site sorting, and the belt waste rock returning mechanism is located in the waste rock returning roadway and used for conveying waste rock in the waste rock bin to a working ...

Electrostatic spinning liquid of polylactic acid

The invention relates to an electrostatic spinning liquid of polylactic acid. The electrostatic spinning liquid of polylactic acid is characterized by being used for producing a dendritic polylactic nanofiber membrane and consisting of polylactic acid, organic branched salt, a plasticizer and a solvent. A preparation method of the electrostatic spinning liquid of polylactic acid comprises the following steps: dissolving the polylactic acid; and dispersing the organic branched salt. The dendritic polylactic nanofiber membrane prepared by using the spinning liquid provided by the invention has excellent obstructing and adsorbing performances, and the filter efficiencies of the dendritic polylactic nanofiber membrane with gram weight of 1g/m<2> on 0.26 mu m sodium chloride particles in air and 0.3 mu m polystyrene micro-particles in an aqueous solution are over 99%, so that the electrostatic spinning liquid of polylactic acid has wide application prospect in the fields of filtration and protection ...

Double resonant vibrations and double promptings longitudinal vibration transducer

Alternating current frequency conversion high-speed asynchronous motor

The invention discloses an alternating current frequency conversion high-speed asynchronous motor, which is provided with a rotor, a stator and a frequency converter, wherein the frequency converter has the rated frequency of 200Hz; the ratio of the internal diameter of the stator of the motor to the core length is 0.4-0.8; stator and rotor laminations are made of cold-rolled silicon steel plateswith good magnetoconductivity; the flux density of the motor is controlled in a certain range, wherein the flux density of stator teeth is 0.9 to 1.4T, the flux density of a stator yoke is 0.8 to 1.1T, the flux density of rotor teeth is 0.9 to 1.35T, the flux density of a rotor yoke is 0.6 to 0.85T, and the flux density of air gaps is 0.45 to 0.6T; the current density of a stator winding is 3.0 to 5.0A/mm<2>, the current density of a rotor bar is 1.1 to 3.0A/mm<2>, and the linear load is 180 to 250A/mm<2>; the insulation is class H insulation, the first turn is sleeved with an insulation tube, and ...

Method for correcting resistivity of crack carbonatite stratum

The invention relates to a method for correcting the resistivity of a crack carbonatite stratum. The method is a novel method for correcting the resistivity of carbonatite crack development layer segment by use of a rock core, imaging and conventional logging data. The method comprises: under an experiment condition, carrying out "a resistivity experiment under the condition of different crack widths of the rock core", i.e., first of all, measuring a matrix resistivity R0 before cracking, and then measuring a corresponding crack resistivity Rf under different crack width conditions; according to an experiment result, fitting a relational expression between the log(R0)-log(Rf) value of the crack resistivity and the matrix resistivity and a crack width w; and then correcting the resistivity of the crack carbonatite stratum, reading a crack position resistivity Rf and a surrounding rock resistivity R0, intersecting the difference of logarithms of the Rf and the R0, i.e., log(R0)-log(Rf) and ...

Rapid cutting ring soil sampling device

The invention relates to the technical field of soil sampling, and particularly discloses a rapid cutting ring soil sampling device which comprises an elevator, a driving box and a cutting ring, the lifter comprises a stand column and a base connected to the bottom of the stand column, a mounting frame is connected to the driving box, one side of the mounting frame is connected with a lifting seat through a sliding plate, and a lifting mechanism for driving the lifting seat to lift is mounted on the stand column; the driving box comprises a driving cylinder and a guide cylinder, the bottom of the driving cylinder is connected with a connecting sleeve, the connecting sleeve is connected with the guide cylinder, and the bottom of the guide cylinder is slidably provided with a sliding column; by arranging the lifting mechanism and the reciprocating part, the height position of the cutting ring can be adjusted, so that the knocking hammer reciprocates and lifts to drive the cutting ring to ...

Electric motor rotor moves balancing weight structure

The utility model discloses an electric motor rotor moves balancing weight structure, it includes rotor body and fixed connection's main shaft with it, tip an organic whole of rotor body sets up a plurality of counter weight component. The electric motor rotor moves balancing weight structure of this structure adopts the mode of predetermineeing the counter weight component with rotor an organic whole to the adoption subtracts heavy method rectifies amount of unbalance, has firstly strengthened electric motor rotor's rigidity, can overcome the not hard up vibration that brings of counter weight effectively, guarantees the even running of motor, secondly is convenient for rectify the accurate control that subtracts weight, cooperates accurate experimental location, makes the amount of unbalance convergence of rectifying the back rotor in zero.

Point-to-point communication device using point-to-point proxy service and method thereof

The invention discloses a network gateway device. A point-to-point ultra-description file detector detects the original point-to-point ultra-description file from the public domain. A point-to-point acting server control unit modifies the original point-to-point ultra-description file to generate a modified point-to-point ultra-description file, and transfers the modified point-to-point ultra-description file to the computer in a private domain. An internal point-to-point tracking server receives a first inquiry information, and replies a pseudo-sharing computer list to the computer. A point-to-point engine loads the original point-to-point ultra-description file, downloads the fragments of the shared file, and transfers the loaded fragments of the shared file to the computer.

Ground combined type rapid drainage system for underground garage opening

The invention provides a ground combined type rapid drainage system for an underground garage opening. The problems that an existing garage drainage system is poor in drainage effect and has potential safety hazards are solved. A ground combined type rapid drainage system for an underground garage opening comprises an intercepting ditch arranged in front of a garage door, a bottom plate is arranged at the lower end of the intercepting ditch, a vegetation layer, a soil layer, a filtering layer, a drainage layer and a drainage channel are sequentially arranged on the bottom plate from top to bottom, a jet pump is arranged in the drainage layer, and a water collecting tank is arranged at the upper end of the garage door. Water guide buckets are arranged on the two sides of the garage door, rotating wheels are rotationally arranged in the water guide buckets, the water collecting tank is communicated with the side faces of the water guide buckets through flow guide pipes, the lower ends of ...

Proxy service device using temporary storage management and data transmission load balance and method thereof

The invention discloses a proxy service device using temporary storage management and data transmission load balance and a method thereof. A torrent file detector detects an original torrent file from an external domain. A point-to-point acting server control unit modifies the original torrent file to generate a modified torrent file, and transfers the modified torrent file to a terminal machine in an internal domain. An internal point-to-point tracking server receives inquiry information, and replies to the terminal machine according to response information. A temporary storage device is used for storing the shared content temporarily. An external stimulated point-to-point engine loads the original torrent file. An internal stimulated point-to-point engine checks whether the temporary storage device has the shared content according to the request information; if the device has the shared content, the shared content is read from the temporary storage device and is transferred to the terminal ...

MEASURING AND CONTROLLING SYSTEM FOR SINTERING CURRE OF CERAMIC MATERIALS

This measure and control system consist of optical unit, charge couple device (CCD), signal processing unit, setting program of sintering contraction curve, control and measure unit of furnace temp and high-temp sintering furnace. It functions to overcome the difficulties existed in contact measure system and to increase the temp of sintered material (from room temp to 2200 deg.C). The chagne of size in sintering procedure may be directly measured and automatically recorded and the autocontrol of sintering procedure is realized as optical imaging method and CCD are used in photoelectric transform.

Detecting method and system for road conditions

The invention relates to a detecting method and system for road conditions. Due to the fact that the road running conditions change gradually along with time, the road conditions in the detecting method and system are divided into a normal passing state, a lining-up passing state and a road congestion state, the traffic flow changing rate, the occupancy changing rate and the speed changing rate are used as bases of warning accidents, and division of the three states is judged according to the threshold of the average vehicle speed and the threshold of the occupancy. According to the detecting method and system for the road conditions, traffic flow data, average vehicle speed data and occupancy data are collected in real time, then all parameters are mutually combined together, the road conditions are judged through a regular process method, the phenomenon that the false alarm rate increases due to the problems of intercommunication, junctions and the like is avoided and various kinds of ...

Traffic data preprocessing method and road condition detection method

The invention relates to a traffic data preprocessing method. The method includes the step that traffic data meeting the condition that the occupation rate is larger than 95% and the average vehicle speed is larger than 5km/h are cleared up, wherein the traffic data include average vehicle speeds and occupation rates. The invention further relates to a road condition detection method. Road conditions include three states, that is, normal passing, queuing to pass and traffic congestion, alarming events occur according to the traffic flow changing rate, the occupation rate changing rate and the speed changing rate, and the three states are divided according to threshold values of the average vehicle speed and the occupation rate. According to the traffic data preprocessing method, before road condition detection, the traffic data are cleared up in advance so that effective data can be obtained, and accordingly accuracy of an analysis result is improved. According to the road condition detection ...

Coal mine fully mechanized coal mining face end mining coal cleaning device

A machine body comprises a machine body frame, a guide sliding shoe and a supporting sliding shoe, the supporting sliding shoe is used for being supported on the upper end face of a coal shoveling plate of a scraper conveyor, the guide sliding shoe is used for being in sliding guide fit with a pin row of the scraper conveyor, and the machine body is pushed or pulled by a coal mining machine to move relative to the scraper conveyor; one end of the telescopic frame extends into the machine body frame and is in guiding sliding fit with the machine body frame in the front-back direction, the coal shoveling mechanism is located on the telescopic frame and comprises a plough-shaped coal shoveling head and a connecting plate, one end of the connecting plate is hinged to the telescopic frame, the other end of the connecting plate is connected with the plough-shaped coal shoveling head, and the telescopic oil cylinder is used for driving the telescopic frame and the coal shoveling mechanism to move ...

Channel sandstone reservoir identification method

The invention discloses a channel sandstone reservoir identification method. The method includes: acquiring seismic response features of channel sand by performing forward modelling on reservoirs, and determining channel-sand seismic identification marks of different geologic bodies; extracting corresponding seismic attributes according to the channel sand seismic identification marks, and determining a channel boundary; under an isochronous stratigraphic frame, determining sedimentary periods of the channel sand by the aid of the stratal slice technique; determining the thickness of the channel sand according to the statistical fitting relation of the real well-drilling sand thickness and the seismic attributes. According to the method, the channel sand identification and description technology is created by going deep into seismic attribute extraction and analysis, utilizing the reservoir of the fixed well, reservoir calibration results and statistical analysis of well drilling and combining ...

Preparation method of superfine fiber diaphragm for lithium ion battery

The invention relates to a preparation method of a superfine fiber diaphragm for a lithium ion battery. The preparation method is characterized by comprising the following steps: preparing a polyvinylidene fluoride superfine fiber net by adopting a solution blow-spraying method and performing dual-net curtain clamping and heat setting on the fiber net. According to the superfine fiber diaphragm prepared by adopting the preparation method provided by the invention, the fiber diameter is between 1 micrometer and 2 micrometers, excellent hydrophilcity and good mechanical property are achieved, the solution absorbing rate reaches above 300 percent, the tensile strength reaches above 10N/5cm, and the elongation at break is not greater than 30 percent.

Method for making niobic magnesium acid lead-lead titanate single-crystal longitudinal vibration transverter

MFI zeolite adsorbent containing hierarchical pores as well as preparation method and application of MFI zeolite adsorbent

The invention relates to an MFI zeolite adsorbent containing hierarchical pores and a preparation method and application thereof.The preparation method comprises the steps that a sol mixture is prepared from an alkaline reagent, a microporous template agent, deionized water, a silicon source, an aluminum source, a mesoporous structure guiding agent and the like, then the sol mixture is subjected to two-stage crystallization treatment and then centrifuged and washed, precipitates obtained through centrifugation are collected and dried, and the MFI zeolite adsorbent containing the hierarchical pores is obtained; the preparation method comprises the following steps: preparing MFI zeolite raw powder from MFI zeolite, roasting the MFI zeolite raw powder to remove ineffective components in the MFI zeolite raw powder to obtain MFI zeolite particles containing hierarchical pores, preparing spherical particles from the MFI zeolite particles and a binder, drying, roasting, and carrying out an ion ...

Sphygmomanometer

The invention discloses a sphygmomanometer comprising a wrist strap and a main frame. The main frame comprises a motor, rotating gears and a controller, an output shaft of the motor is connected with the rotating gears, the motor is used for driving the rotating gears to rotate, the rotating gears are in contact with the surface of the wrist strap and used for driving the wrist strap to shrink so as to enable the wrist strap to wind a tested subject, and the controller is connected with the motor; the controller is used for detecting current of the motor, and determining that the wrist strap shrinks to a normal measurement position and controlling the motor to stop working if the current reaches a first threshold value. The motor drives the wrist strap to retract to allow the wrist strap to automatically clamp the tested subject, so that the sphygmomanometer is applicable to arms different in thickness, measurement errors are reduced, and measurement accuracy is improved.

Composite disproportionation catalyst for preparing propylene through disproportionation of ethylene and 1-butene and preparation method of composite disproportionation catalyst

The invention provides a composite disproportionation catalyst for preparing propylene through disproportionation of ethylene and 1-butene. The composite disproportionation catalyst comprises the following components in percentage by mass: 1-49% of a WO3/SiO2 catalyst, 50-98% of an element I modified molecular sieve catalyst and the balance of a binder, the preparation method of the composite disproportionation catalyst comprises the following steps: preparing a WO3/SiO2 catalyst and an element I modified molecular sieve catalyst by an impregnation method, mixing, kneading and forming the two catalysts to obtain a composite catalyst, and modifying the composite catalyst by using metal II to obtain the composite disproportionation catalyst. The molecular sieve of the composite disproportionation catalyst provided by the invention has a special aperture structure, can greatly improve the carbon capacity, and promotes a chemical reaction to proceed in a direction beneficial to propylene generation ...

Gene sequence, expression method and application of streptococcus suis protective antigen ESPss

The invention relates to a gene sequence, an expression method and application of a streptococcus suis protective antigen ESPss, and belongs to the technical field of animal immunity. The method comprises the following steps: artificially synthesizing a nucleotide sequence of ESPss protein; a nucleotide sequence is amplified by using a primer pair with EcoRI and XhoI restriction enzyme cutting sites, an obtained target gene PCR product and a pET-28a positive plasmid are subjected to double restriction enzyme cutting treatment by using EcoRI and XhoI enzymes and then are connected, and the expression of a recombinant ESPss protein is induced to obtain a protective antigen ESPss, so that the antibody level of a mouse can be remarkably improved, and the protective antigen ESPss can be used for preparing an anti-tumor drug. The expression level of cell factors IL-4 and IFN-gamma of serum and organs of a host animal can be remarkably improved, and a relatively good immune protection effect is ...

Catalyst for preparing ethylene and propylene by cracking C5 and C6 alkanes as well as preparation method and application of catalyst

The invention relates to a catalyst for preparing ethylene and propylene by cracking C5 and C6 alkanes as well as a preparation method and application of the catalyst. The catalyst is mainly composed of a molecular sieve and modified metal, and the molecular sieve is formed by compounding one or two of a Y-type molecular sieve and mordenite, an SAPO-34 molecular sieve, a ZSM-5 molecular sieve and a binder; the modified metal is selected from one or more of rare earth metal, IA, IIA, VIB and VIIB. Wherein the Y-type molecular sieve and the mordenite are modified by rare earth metal, and the ZSM-5 molecular sieve is modified by VIB or VIIB and IA or IIA metal. The catalyst provided by the invention has double functions of dehydrogenation and cracking, and can solve the problems of high investment cost, more byproducts in the reaction process, high heat loss, short catalyst life and the like in the prior art; the catalyst can be used for treating various mixed raw materials, has higher selectivity ...