分子筛制氧机（10L）

SYSTEM AND METHOD FOR NETWORK ACTIVITY INTERACTION, CLIENT AND SERVER THEREOF

A system for network activity interaction is provided in the present invention, which includes: an establishment module for establishing network activity contents; an interaction module for acquiring a request submitted by a user for joining in said network activity and participation data submitted by the user, judging whether the participation data submitted by said user accord with said network activity contents, and if yes, adding the user into the participation user set of the network activity, and storing the participation data submitted by the user to a participation reply content set of the network activity; a database for storing said network activity contents, the participation user set of said network activity, and the participation reply content set for gathering the participation data submitted by the users; a display module for displaying said network activity contents and the participation reply content set of the network activity. In addition, a network activity interaction ...

制氧机（10L一体机）

Monoclonal antibody for novel coronavirus SARS-CoV-2 glycoprotein RBD region and application thereof

The invention discloses four monoclonal antibodies XA326.7, XA326.8, XA326.18 and XA326.49 for resisting new coronavirus glycoprotein as well as a light chain and a heavy chain of the four monoclonal antibodies. A light chain variable region sequence and a heavy chain variable region sequence of the monoclonal antibody with high neutralizing activity are provided, the amino acid sequence of the light chain variable region is as shown in SEQ ID NO.1, and the amino acid sequence of the heavy chain variable region is as shown in SEQ ID NO.2. A conventional hybridoma technology is adopted, a monoclonal antibody of mouse anti-new coronavirus glycoprotein is prepared, four hybridoma cells XA326.7, XA326.8, XA326.18 and XA326.49 capable of stably secreting antibodies with high neutralizing activity are screened out, and the mAb obtained by preparing ascites can be applied to blocking infection of the new coronavirus on ACE2 positive cells. Uniqueness and CDR sequences of the gene sequence and ...

Perovskite thin film preparation method and perovskite thin film preparation device

The invention discloses a perovskite thin film preparation method and a perovskite thin film preparation device. The preparation method of the perovskite thin film comprises the following steps: S1, immersing a substrate on which a perovskite film layer needs to be prepared into a perovskite inorganic component precursor solution through roll-to-roll equipment, and carrying out first chemical deposition on the substrate; s2, conveying the substrate deposited with the perovskite inorganic component precursor solution to a first heating assembly through roll-to-roll equipment, and carrying out heating curing to obtain an inorganic component cured film; s3, immersing the inorganic component cured film obtained in the step S2 into a perovskite organic component precursor solution through roll-to-roll equipment, and carrying out secondary chemical deposition on the inorganic component cured film; and S4, conveying the substrate deposited with the perovskite organic component precursor solution ...

Double-cavity MEMS alkali metal air chamber and preparation method thereof

The invention discloses a double-cavity MEMS alkali metal gas chamber and a preparation method thereof, a P-type (100) crystal face double-sided polished silicon wafer is provided with a working cavity, an auxiliary cavity and a connecting channel, and a first glass sheet and a second glass sheet are respectively bonded on the back surface and the front surface of the P-type (100) crystal face double-sided polished silicon wafer and seal the working cavity, the auxiliary cavity and the connecting channel; hF type parylene films are arranged on the surfaces of the working chamber, the auxiliary chamber and the connecting channel, the area, corresponding to the working chamber and the auxiliary chamber, on the first glass sheet and the area, corresponding to the working chamber, the auxiliary chamber and the connecting channel, on the second glass sheet; alkali metal chemical reactants are arranged in the auxiliary cavity, and the working cavity, the auxiliary cavity and the connecting channel ...

Parallel low-voltage high-current output direct-current power supply device and control method

The invention relates to the technical field of power supplies, in particular to a parallel low-voltage large-current output direct-current power supply device and a control method. The device comprises an AC input EMC module, an AC/DC power factor correction module, an AC working mode DC/DC low-voltage output module, an AC working mode DC/DC high-voltage output module, an intelligent charging module, a battery working mode DC/DC low-voltage output module, a battery working mode DC/DC high-voltage output module, a high-low voltage output switching controller and a signal sampling processing and control module. And a storage battery pack and a DC output EMC module. According to the low-cost reliable wide-voltage-range large-current output circuit provided by the invention, the output voltage and current data are acquired through software to control the high-voltage and low-voltage output switching circuit, so that the fault rate and the cost of a parallel power supply can be greatly reduced ...

Preparation method of methyl tetrahydrophthalic anhydride

The invention relates to a preparation method of methyl tetrahydrophthalic anhydride, which comprises the following steps: A, diene synthesis: preparing isoprene and m-pentadiene, and mixing to obtain a C5 solution; the preparation method comprises the following steps: preparing maleic anhydride, then adding a polymerization inhibitor, then starting to dropwise add a C5 solution, and after dropwise adding is completed, carrying out heat preservation reaction for 1-1.5 hours to obtain a feed liquid; b, isomerization reaction: adding 0.4-1.0 g of a catalyst into the feed liquid, heating to 185-195 DEG C, and carrying out heat preservation reaction for 1-1.5 hours; then carrying out reduced pressure distillation to obtain methyl tetrahydrophthalic anhydride; the polymerization inhibitor is prepared from 2, 6-di-tert-butyl-4-methylphenol and 2-isopropyl phenol according to the mass ratio of 1 to 1. The preparation method provided by the invention not only can reduce the energy consumption, ...

Tourist route display method for mobile phone software

The invention discloses a travel route display method for mobile phone software, which is realized based on react native and mainly comprises the following modules: a characteristic route introduction module for brief introduction of travel routes with different themes by adopting a sliding card form, a route detail module for displaying score information and route length of the travel routes, and a display module for displaying the score information and route length of the travel routes. According to the route map display page, a three-dimensional mark is set on a map, a corresponding route is drawn on the map, scenic spot pictures and information are displayed at the bottom through a rolling card, after the pictures are slid to the corresponding scenic spots, the map automatically adjusts the view angle and focuses on the corresponding scenic spots, and related map software installation information can be displayed after the sliding card is clicked. And map software can be aroused for ...

Surface cleaning device for new energy battery aluminum foil rolling and control method thereof

The invention discloses a new energy battery aluminum foil rolling surface cleaning device and a control method thereof, and belongs to the field of aluminum foil cleaning, the new energy battery aluminum foil rolling surface cleaning device comprises two sets of adjusting sections, and a gap is formed between the two sets of adjusting sections; a cleaning section, an air drying section and a transition section are sequentially arranged in the gap; the aluminum foil can sequentially penetrate through the adjusting section, the cleaning section, the air drying section and the transition section. According to the surface cleaning device for new energy battery aluminum foil rolling and the control method of the surface cleaning device, through the arranged adjusting section, the aluminum foil penetrating through the adjusting section can be adjusted at the preset height and the preset angle so that the aluminum foil can reach the position of a preset water spraying working face when penetrating ...

Interface conversion device and method of propeller type wind measurement sensor

The invention discloses an interface conversion device and method for a propeller type wind measurement sensor. The device comprises a filter circuit, a shaping circuit, a single chip microcomputer, a signal conditioning circuit, a power supply unit and a relay. The single chip microcomputer comprises a CPU (Central Processing Unit), a program memory, a data memory, an interrupt system, an I/O (Input/Output) port, a clock circuit, a timer/counter, a D/A (Digital-to-Analog) converter, an SPI (Serial Peripheral Interface) bus and a serial port, and is used for processing the filtered wind speed signal or the shaped wind direction signal; and the signal conditioning circuit comprises a pulse signal conditioning circuit, a voltage signal conditioning circuit, a current signal conditioning circuit and a digital signal conditioning circuit, and is used for conditioning the pulse signal, the voltage signal, the current signal or the digital signal and then outputting the conditioned signal. According ...

INSULATING BUSH MADE OF THERMOPLASTIC MATERIAL AND PRODUCTION METHOD THEREFOR

An insulating bush made of a thermoplastic material comprises an insulating housing (10), a center conductor (20), and a shielding mesh (30). The insulating housing (10) is molded by casting a thermoplastic material. A through hole (11) is provided in the center in an axial direction. An annular inner cavity (13) of the insulating housing is formed between an outer side surface (12) of the through hole (11) of the insulating housing (10) and an inner side surface (16) of the insulating housing (10). The center conductor (20) is embedded into the through hole (11) of the insulating housing (10). The shielding mesh (30) is disposed in the annular inner cavity (13) of the insulating housing (10). The shielding mesh (30) is encircled by the insulating housing (10) completely or partially. The shielding mesh (30) encircles the center conductor (20). The insulating bush is compact in structure, light in weight, and convenient to mount. By using a thermoplastic material as an insulating housing ...

Shield segment typesetting method for automatically calculating and generating standard ring and turning ring

The invention discloses a shield segment typesetting method capable of automatically calculating and generating a standard ring and a turning ring, which comprises the following steps of: according to a design axis horizontal curve, carrying out segmented calculation and inputting an axis linear element; calculating an average turning angle beta of the turning ring duct pieces according to the counted common duct piece point positions of the field duct piece type selection; according to segment type distribution given by the design drawing, inputting the mileage of the segment type segment by segment from the interval starting mileage, and selecting the name of the segment type until the interval ending mileage; and starting from the starting mileage, calculating a segment arrangement plan of each segment of axis, and forming a segment arrangement plan table. According to the method, manual operation is reduced or replaced, reasonable standard ring + left and right turning ring duct piece ...

Automobile aftermarket data processing method based on AI model

The invention discloses an automobile aftermarket data processing method based on an AI model, and relates to the technical field of automobile aftermarkets, and the method comprises the following steps: obtaining the data information of an automobile engine, the data information comprising the state information of engine equipment and the operation state information of the engine equipment; and generating a monitoring index through the state information of the engine equipment and the operation state information of the engine equipment. The running state of the automobile engine is monitored through the generated monitoring index, and when the running state of the automobile engine becomes poor, an early warning prompt that maintenance needs to be carried out is sent out to prompt an automobile user that the running state of the engine becomes poor and maintenance needs to be carried out in time; when the automobile engine does not reach the maintenance period and the maintenance mileage ...

BATCH DATA QUERY METHOD AND DEVICE

A batch data query method and device. The batch data query method comprises: determining, by a data query server according to operators and operands in N query sentences, symbol identifiers of the operands in the N query sentences, the symbol identifiers comprising version numbers of the operands (102); determining, according to the version numbers of the operands in the N query sentences, a dependence relationship among the N query sentences (103); and performing, according to the dependence relationship among the N query sentences and a preset optimization rule, inter-query optimization on the N query sentences (104). Since the symbol identifiers of the operands in the N query sentences are fixed and do not change with respect to different query sentences, the symbol identifiers of the symbol numbers determined by the method are suitable for all input sets without executing any part of any query sentence or monitoring data access or updating a condition during the execution process of ...

Manufacturing method of copper-based boss plate

The invention provides a manufacturing method of a copper-based boss plate, which comprises the following steps of: S1, preparing materials: cutting copper foil with the thickness of 0.035 mm, PP (polypropylene) prepreg with the thickness of 0.1 mm and a copper plate which is a red copper plate with the thickness of 1.0 mm according to a splicing size; s2, pressing, wherein copper foil, PP and a copper plate are made into a copper substrate through a pressing machine at high temperature and high pressure; s3, groove milling: milling a depth-controlled blind groove at the convex copper design position by adopting a depth-controlled milling machine; the gong machine is a depth-controlled gong machine, the depth of the gong machine is controlled to penetrate through the dielectric layer, the bottom surface of the blind slot is ensured to be in the copper plate, and the depth of the blind slot is controlled to be 0.160 +/-0.025 mm; and S4, electroless copper plating and flash plating: performing ...

BULK DATA QUERY METHOD AND APPARATUS

Provided in the embodiments of the present invention are a bulk data query method and apparatus; by means of acquiring a plurality of logical query plan trees corresponding to a plurality of query statements, on the basis of the operators of each logical query plan tree, dividing the logical query plan trees into a plurality of query groups, the logical query plan trees in each query group having the following inter-query relationship: an inter-query write-read dependency relationship, an operator overlap relationship, or an operand overlap relationship; then, implementing inter-query optimisation of the logical query plan trees in each query group; on the basis of the optimised plurality of logical query plan trees, generating a corresponding plurality of physical query plan trees; and finally, on the basis of the plurality of physical query plan trees, executing physical queries to obtain the query results of the plurality of query statements. The present method, by means of grouping ...

Dendritic-crystal-free electrochemical silver plating method

The invention provides a dendrite-free electrochemical silver plating method which comprises the following steps: immersing a conductive substrate in an electroplating solution, and plating by taking the conductive substrate as a working electrode to obtain a silver-plated substrate; the electroplating liquid comprises a silver source, ammonia, a chelating agent, a buffering agent and electrolyte. Compared with the prior art, the method has the advantages that the ammonia water and the chelating agent are combined, generation of dendritic crystals is effectively inhibited, a uniform and compact plating layer is further formed through step-by-step electrodeposition, the binding force of the silver plating layer and the substrate is improved, and then the conductivity and stability of the silver plating substrate are improved.

Flexible distributed pressure detection pad based on novel flexible pressure sensor

The invention relates to a novel flexible pressure sensor-based flexible distributed pressure detection pad, which comprises a packaging layer, a flexible pressure sensor, a signal acquisition circuit and an upper computer, and is characterized in that the flexible pressure sensor is connected with the signal acquisition circuit and is used for performing pressure detection and transmitting a detected pressure signal to the signal acquisition circuit; the signal acquisition circuit is connected with the upper computer and is used for transmitting acquired pressure signals to the upper computer for display and analysis; the flexible pressure sensor and the signal acquisition circuit are contained in the packaging layer; by means of the detection pad, human body position state monitoring and automatic position change monitoring can be provided for a nursed person, a proper seat cushion and a proper mattress can be selected for the disabled or disabled old people, stress is uniform in the ...

Battery jacking, discharging and transferring mechanism with high detection accuracy

The invention provides a battery jacking out-of-tray transferring mechanism with high detection accuracy. The battery jacking out-of-tray transferring mechanism comprises a first jacking device, a second jacking device, a bearing plate, a supporting device and a transverse moving device. The first jacking device is connected with the bearing plate, the transverse moving device and the second jacking device are both arranged on the bearing plate, the supporting device is connected with the transverse moving device, and the transverse moving device drives the supporting device to move relative to the bearing plate and the second jacking device; the second jacking device comprises one or more sets of jacking assemblies, and each set of jacking assembly comprises two or more jacking rods arranged at intervals. The width between the adjacent jacking rods is greater than the thickness of one battery; through the jacking rods which are arranged at intervals, a part of batteries in the tray are ...

Conductive polyaniline composite material and preparation method thereof

The invention relates to the technical field of composite materials, in particular to a conductive polyaniline composite material and a preparation method thereof. The conductive polyaniline composite material comprises a titanium nitride/titanium dioxide/carbon composite material, the conductive polyaniline is arranged on the surface of the titanium nitride/titanium dioxide/carbon composite material; the titanium nitride/titanium dioxide/carbon composite material comprises: a carbon layer; the titanium dioxide fiber is arranged on the carbon layer; the titanium nitride layer is arranged on the surface of the titanium dioxide fiber. Compared with the prior art, the conductive polyaniline composite material comprises the conductive polyaniline/titanium nitride interface, the titanium nitride/titanium dioxide interface and the titanium dioxide/carbon interface, the coupling relation between the Seebeck coefficient and the conductivity of the composite thermoelectric material is broken through ...

Method for recommending protection strategy, electronic equipment and computer program product

The embodiment of the invention relates to a method for recommending a protection strategy, electronic equipment and a computer program product. The method includes obtaining content of the adjusted attributes of the plurality of data assets. The method further includes generating a plurality of vector representations for the plurality of data assets based on the content of the attribute. The method further includes partitioning the plurality of data assets into at least one class based on the plurality of vector representations. The method further includes, if it is determined that there is a protection policy for one data asset in the at least one class, determining the protection policy as a recommended policy for another data asset in the at least one class. Through the method, a user can easily select a proper protection strategy and can effectively reuse the existing strategy, so that the user experience is improved.

Decorative paper gumming dry construction

... 本实用新型公开了一种装饰纸浸胶干燥结构，包括干燥箱体和干燥箱体上的循环风机，所述干燥箱体内侧设置有供纸张干燥的干燥工位，所述干燥工位的上方设置有上风槽，所述干燥工位的下方设置有下风槽，所述上风槽和下风槽上端的进风口处还分别设置有高速燃烧器，所述循环风机的左右两侧与上风槽、下风槽上端的进风口之间位置处分别设置有阿基米德曲线板；该干燥通过合理的结构改良，尤其是通过高速燃烧器替换了原来导热油加热器作为主要干燥吹风结构，并通过阿基米德曲线板优化了排湿通道，使循环气流均匀高速的流经高速燃烧器火焰，保证循环气流温度均匀，不但节约了成本，而且降低对阀门的控制要求。 ...

Photovoltaic packaging glass and double-sided double-glass photovoltaic module

The photovoltaic packaging glass comprises a glass body, a plurality of closed holes are formed in the face, back to a battery piece, of the glass body, each closed hole is provided with a hole opening and a hole cavity, and solar rays can enter the hole cavities through the hole openings. Some solar rays cannot be reflected into the atmosphere after entering the pore cavity, but are retained in the pore cavity. The closed hole can reduce the mirror reflection of the photovoltaic packaging glass to incident sunlight, and enables the sunlight to be reflected for multiple times in the closed hole, so that the capturing capability of the photovoltaic packaging glass to the incident sunlight can be enhanced, and the sunlight absorption of the battery piece is enhanced. If the photovoltaic packaging glass is used as back glass of the double-sided double-glass photovoltaic module, the arrangement of the closed holes can enhance the ability of the back glass to take in weak reflected light and ...

PNEUMATIC BUTTON WITH QUICK COUPLING

A pneumatic button with a quick coupling comprises a pneumatic button body (1) and an air pipe (2), the pneumatic button body (1) being provided with an air outlet (11); and one end of the air pipe (2) being sheathed into the air outlet (11). The pneumatic button with a quick coupling further comprises a quick coupling (3), the quick coupling (3) comprising a sealing element (35), a fixing part (33) and a push part (31); the sealing element (35) being sheathed between the air outlet (11) of the pneumatic button body (1) and the outer side wall of the air pipe (2); the fixing part (33) being provided with a plurality of elastic clamping jaws (331) along the circumferential direction of the fixing part (33); the fixing part (33) being sheathed between the air outlet (11) of the pneumatic button body (1) and the outer side wall of the air pipe (2); all the elastic clamping jaws (331) of the fixing part (33) are respectively and elastically abutted to the air pipe (2) along the radial direction ...

Road construction management system and method based on digital platform

The invention provides a road construction management system and method based on a digital platform, and belongs to the technical field of road construction management, and the method is realized through the system, and the system comprises an unmanned aerial vehicle which is provided with a main rotor device and an auxiliary rotor device capable of adjusting the direction; the sensor group module and the communication module are both mounted on the unmanned aerial vehicle; the monitoring camera module is used for capturing real-time road construction condition pictures to form a picture set and recording to form a video set; an engineering information model is stored in the engineering management module; the processor is connected with the monitoring camera module and is used for receiving the picture set and the video set and carrying out BIM modeling to obtain a road construction model; wherein the processor compares the road construction model with the engineering information model.

Anti-seismic support for supporting electromechanical equipment

The invention relates to an anti-seismic support, in particular to an anti-seismic support for supporting electromechanical equipment. According to the anti-seismic support for supporting the electromechanical equipment, the damping and buffering effect can be enhanced, and meanwhile the sensitivity of triggering the damping function can be conveniently adjusted according to different earthquake intensities. An anti-seismic support for supporting electromechanical equipment comprises a base, a sliding plate, a supporting seat and the like. The four bases are each provided with four sliding grooves, the sliding grooves of the four bases are slidably connected with sliding plates, and the upper portions of the sliding plates are fixedly connected with supporting seats. When an earthquake occurs, a magnetic heavy ball shifts and pushes an extrusion plate to slide downwards on a cross-shaped limiting frame under the action of gravity, so that a fixed cylinder, a sliding plate, a supporting ...

DOWNLOAD METHOD AND SYSTEM BASED ON MANAGEMENT DATA INPUT/OUTPUT INTERFACE

The present invention provides a download method and system based on a Management Data Input/Output (MDIO) interface, wherein, the download method based on the MDIO interface includes that: a master device informs a slave device to start the batch data packet download using the MDIO interface; the master device transmits the data packets in batch to the slave device using MDIO frames, the MDIO frames including a data packet address field and/or a data packet numbering field, wherein the data packet address field is used to indicate the relative address in the slave device of a data packet, and the data packet numbering field is used to indicate the location in multiple data packets of a data packet; the slave device judges that the received data packet is the last data packet of the batch transmission from the master device, and finishes the batch download. The invention enables the master device and the slave device to perform the batch data download effectively, and solves the problem ...

Floating type double-glass crystal silicon assembly

The invention provides a floating type double-glass crystal silicon assembly. The floating type double-glass crystal silicon assembly comprises a frame structure, an interlayer structure and a junction box, wherein the frame structure is arranged on the periphery of the interlayer structure to reinforce the interlayer structure, and the junction box is installed on the interlayer structure; the interlayer structure comprises a double-glass crystalline silicon assembly body and a thermal management function material layer. The thermal management functional material layer comprises a hydrophilic functional film layer and a hydrophobic functional film layer; wherein the hydrophilic functional film layer is directly contacted with the double-glass crystalline silicon assembly body. The floating type double-glass crystal silicon assembly provided by the invention can effectively reduce the temperature coefficient and the efficiency decline of the assembly, and improves the sunlight absorption ...

Perovskite thin film, preparation method thereof and perovskite solar cell

The invention provides a perovskite thin film, a preparation method thereof and a perovskite solar cell. The perovskite thin film is obtained by sequentially carrying out first annealing treatment and second annealing treatment on a mixed solution composed of a perovskite precursor, a solvent and a cross-linking agent, the temperature of the first annealing treatment is 70-110 DEG C or 150-200 DEG C, and the temperature of the second annealing treatment is 90-160 DEG C. Two-step annealing treatment is adopted, and the temperature difference between the first annealing treatment and the second annealing treatment is controlled to be not lower than 15 DEG C, so that the perovskite thin film is large in grain size, few in grain boundary and good in crystallinity, the perovskite thin film is used for preparing a perovskite solar cell, and the efficiency and stability of the perovskite solar cell can be effectively improved.

Earth pressure-muddy water dual-mode shield deslagging construction method based on spiral conveyor

The earth pressure-muddy water dual-mode shield deslagging construction method comprises the following modes: 1, converting an earth pressure mode into a muddy water mode, namely discharging slag in a bin by utilizing a shield screw conveyor, injecting slurry from a slurry inlet pipe to ensure that the bin pressure is stable, closing gates at the front end and the rear end of the screw conveyor after the slag and slurry replacement is completed, and stopping the shield screw conveyor; opening a bypass muddy water pipe valve of the shield screw conveyor, opening a gate at the front end of the screw conveyor after returning to tunneling, and discharging slag by utilizing the shield screw conveyor and the bypass muddy water pipe; 2, a muddy water mode to earth pressure mode: closing a gate at the front end of a shield screw conveyor after the shield is stopped, closing a bypass muddy water pipe valve of the shield screw conveyor, opening gates at the front end and the rear end of the shield ...

MEDICAL MONITOR SUSPENSION SYSTEM

Disclosed is a medical monitor suspension system comprising a framework (2),an upright (4)connected to the framework (2), wherein two parallel horizontal rods (6) and two vertical rods (8) closely surround the framework (2), and the upper and lower end of the upright (4) are symmetrically installed two side plates (10), and both ends of the two side plates (10) are equipped with racks capable of moving left and right, and a rear cover consisting of two protective covers (12) symmetrically arranged left and right is jacketed between the two vertical rods (8). The system is beautiful, safe, and does not accumulate dust, and it can avoid the monitor falling off when using excessive force to fix the big medical monitor onto the vertical plate, and can realize the suspension of multiple medical monitors with various widths and sizes without blind spots.

Thin film solar cell and manufacturing method thereof

The embodiment of the invention discloses a thin-film solar cell and a manufacturing method thereof, and the thin-film solar cell comprises N transparent conductive layers which are located on a first surface of a substrate, and N is greater than or equal to 2; the sub-cell stacking structures and the first electrode layers are located on the surfaces of the first areas of the transparent conducting layers to form N sub-cells, and the first electrode layer on the surface of the first area of the ith transparent conducting layer is connected with the first area of the (i + 1) th transparent conducting layer; the positive electrode of the ith bypass diode is connected with the negative electrode of the ith sub-battery, the negative electrode of the ith bypass diode is connected with the positive electrode of the ith sub-battery, the positive electrode of the Nth bypass diode is connected with the negative electrode of the Nth sub-battery, and the negative electrode of the Nth bypass diode ...

Shield synchronous grouting slurry injection method based on PLC automatic control

The invention provides a shield synchronous grouting slurry injection method based on PLC automatic control, and the method comprises the following steps: S100, a grouting system obtains a grouting mode selection signal and a tunneling state signal of a shield tunneling machine, and if the shield tunneling machine is in a tunneling state, a step S300 is executed; s300, the grouting system obtains the shield tunneling management stroke, the current tunneling section is determined, and the section is divided by the tunneling step length L; and S500, the grouting speed Si of the section is calculated according to the tunneling condition of the previous section. According to the method, the functions that the synchronous grouting time is controllable, the flow is adjustable, the single-hole grouting proportion is controlled according to needs, and the pump is stopped in a single-pipe over-limit mode are achieved, the control precision of the synchronous grouting process is improved, and it ...

An inner skirt and an outer shell integrally formed embedded electrode part

... 本实用新型涉及中高压开关设备结构设计和制造领域，公开了一种内伞裙和外壳一体成型的嵌入式极部件，包括由热塑性绝缘材料制成的极部件外壳(1)，所述极部件外壳(1)的内圆周面上设有与极部件外壳(1)一体成型的内伞裙(2)。本实用新型的嵌入式极部件采用内伞裙与外壳一体成型的方式，节省了成本，提高了生产效率，保证了爬电距离，极部件内部空间大，方便壳体内零部件的拆装与换修。而且，本设计采用的结构不容易积累灰尘等污秽，减少了因污秽引起的绝缘水平下降的风险。 ...

Photovoltaic module frame and preparation method thereof

The invention relates to the field of photovoltaic technology, and particularly provides a photovoltaic module frame and a preparation method thereof. The photovoltaic module frame is prepared by pressing and sintering raw materials comprising the following components: first aluminum alloy powder, second aluminum alloy powder and ultraviolet shielding particles, the Vickers hardness of the first aluminum alloy powder is different from that of the second aluminum alloy powder. Compared with the prior art, on the premise that the mechanical strength is guaranteed, the use amount of the aluminum alloy raw material is reduced, then the cost of the photovoltaic module packaging frame is reduced, and the photovoltaic module frame which is low in cost, light in weight, high in strength and high in ultraviolet shielding function is obtained.

Photovoltaic cell module, preparation method thereof and photovoltaic equipment

The invention provides a photovoltaic cell assembly and a preparation method thereof, and a photovoltaic device, the assembly comprises N cells, each cell comprises a power generation structure and a conductive layer located on the first surface of the power generation structure and electrically connected with the power generation structure, the conductive layer in the ith cell is electrically connected with the second surface of the power generation structure in the (i + 1) th cell, the light incident surface of the photovoltaic cell assembly is parallel to the cross section of the cell piece in the length direction. Therefore, the power generation structures in the N battery pieces are electrically connected in sequence through the conducting layers, grid lines are not needed, and therefore the dead zone of the light incident face is reduced. And the conductive layer covers the first surface of the power generation structure and the second surface of the adjacent power generation structure ...

Method for preparing perovskite material layer

The invention belongs to the technical field of perovskite solar cells, and provides a method for preparing a perovskite material layer, which comprises the following steps: (1) grinding perovskite crystals to obtain powder with the particle size of 50-1000nm; (2) spraying the powder into a film by adopting an electrostatic spraying method, wherein the electrostatic spraying pressure is 0.1-10 Pa, the spraying distance is 1-100 cm, and the film forming thickness is 100-1500 nm; and (3) carrying out vacuum heating treatment on the thin film formed by electrostatic spraying to obtain the perovskite material layer. In the invention, the perovskite crystal raw material strictly complying with the stoichiometric ratio is adopted, and a precursor mixing stage is not needed, so that a stoichiometric ratio imbalance region in the obtained perovskite thin film is greatly reduced, and the efficiency of a subsequently applied battery device is good. In addition, the method does not use a solvent, ...

Photovoltaic inverter and preparation method thereof

The invention relates to the field of photovoltaic technology, and particularly provides a photovoltaic inverter and a preparation method thereof. A coating is compounded on the surface of a fin of the photovoltaic inverter; the coating contains indium tin oxide particles and infrared shielding particles. Compared with the prior art, the surfaces of the fins of the photovoltaic inverter are compounded with the coatings, the coatings further introduce protruding structures on the surfaces of the fin structures, the morphology can further strengthen convective heat transfer of the surfaces of the fins, the heat dissipation capacity of the inverter is further enhanced, and therefore the working temperature of the inverter is reduced.

Preparation method of perovskite solar cell

The invention provides a preparation method of a perovskite solar cell, and the method comprises the steps: firstly providing a metal substrate which is a metal electrode, processing the first surface of the metal substrate, and enabling the processed first surface structure to serve as a first charge transmission layer; at the moment, the metal substrate and the first charge transmission layer do not have a separation problem, so that the perovskite solar cell with the structure can bear more times of bending, and the mechanical life of the perovskite solar cell device is prolonged.

Control system and method for accurately regulating and controlling double-liquid grouting parameters

The invention provides a control system and method for accurately regulating and controlling double-liquid grouting parameters. The control system is composed of a hydraulic system, a monitoring system, a logic system and an execution system. Wherein the hydraulic system is mainly used for providing power for the whole system and executing internal actions of the whole system; the monitoring system is mainly used for monitoring and displaying flow and pressure changes in real time; the logic system is mainly used for manually setting grouting parameters and realizing automatic operation and remote communication of the system; the execution system is mainly used for controlling external actions of the whole system and executing corresponding grout pumping and discharging actions according to grouting parameters preset by the logic system. Through the four systems, double-liquid grouting parameters can be accurately regulated and controlled, and the double-liquid grouting quality is ensured ...

Preparation method of perovskite thin film and perovskite solar cell

The invention provides a preparation method of a perovskite thin film and a perovskite solar cell, and the preparation method comprises the steps: forming an inorganic skeleton having a preset height on a supporting structure, the inorganic skeleton being composed of a first component and having a plurality of first holes inside, filling the plurality of first holes with a precursor solution comprising a second component, and enabling the first component of the inorganic framework to react with the second component in the first hole by utilizing high-temperature annealing to form the perovskite thin film. According to the preparation method, the perovskite thin film can be formed by reacting the first component of the inorganic framework with the preset height with the second component in the first hole, so that the thickness of the prepared perovskite thin film is related to the height of the inorganic framework and is in positive correlation, and the perovskite thin film can be prepared ...

Wireless energy transmission system

The invention discloses a light flux structure and a wireless energy transmission system, a light diffusion material is distributed in a quartz main body, and the refractive index of the light diffusion material is different from that of the quartz main body, so that a light beam incident into the quartz main body is reflected or scattered to the side wall of the quartz main body by the light diffusion material; according to the photoelectric device, the light scattering material in the quartz main body is used as a reflection or scattering center, so that a light beam incident into the quartz main body is effectively scattered by the light scattering material into light waves emitted to the side wall of the quartz main body, and the light waves are emitted from the side wall of the quartz main body; the received light wave energy is reduced, photoelectric conversion of a photoelectric device is facilitated, the photoelectric device is prevented from being damaged due to direct receiving ...

Preparation method and device of flexible multifunctional film based on reliable interface bonding

The invention discloses a preparation method of a flexible multifunctional film based on reliable interface bonding and a device, and the preparation method comprises the following steps: firstly, modifying an amino-containing polymer, introducing sulfydryl to a molecular chain of the polymer, and dissolving the polymer in deionized water; adding the metal nanoparticles into the solution of the sulfydryl-containing polymer, uniformly dispersing, and standing; coating a clean flexible substrate with the modified sulfydryl-containing polymer and the prepared conductive ink in a layered manner; the flexible multifunctional film with reliable binding force is obtained after low-temperature drying and high-temperature sintering, and the prepared flexible multifunctional film has multiple functions and can be used as an electromagnetic shielding film, a bending strain sensor and an electric heating device.

Laminating method of photovoltaic module and solar power generation system

The invention relates to the technical field of photovoltaic module production processes, and particularly provides a photovoltaic module lamination method and a solar power generation system. The method comprises the step of laminating a laid photovoltaic module in the presence of a magnetic field to obtain a photovoltaic module laminated part. Compared with the prior art, according to the lamination method of the photovoltaic module, the normal magnetic field is applied on the basis of a traditional photovoltaic module lamination process, the thermal conductivity of the EVA adhesive film can be improved, the working temperature of a battery piece is effectively reduced, the photoelectric conversion efficiency of a solar battery is optimized, and the service life of the solar battery is prolonged.

Flood control structure for basement entrance

The invention relates to the technical field of basement flood control, in particular to a basement entrance flood control structure which comprises a building base body, a plurality of blocking assemblies, a transverse inflation sealing strip and a plurality of supporting assemblies, each blocking assembly comprises a multi-stage air cylinder, a baffle and a vertical inflation sealing strip, and each supporting assembly comprises at least two supporting rods. When the device is used, the baffle is driven to stretch out through the multi-stage air cylinder, the transverse inflation sealing strip and the vertical inflation sealing strip are controlled to be inflated and expanded to complete sealing, finally the supporting rod is rotated to the second end to abut against the baffle, and compared with an existing flood prevention sandbag stacking scheme, actions of all the parts can be achieved only by controlling corresponding switches, and operation is convenient. Operation is easy, a large ...

Liver biopsy data analysis method and system

The invention relates to the technical field of image processing, in particular to a liver biopsy data analysis method and system. The method comprises the following steps: acquiring a gray level image of liver biopsy, determining a corresponding first gray level value and a corresponding second gray level value according to gray level distribution of an initial gray level histogram corresponding to each sub-region in the gray level image, and further acquiring each gray level interval corresponding to each sub-region; obtaining an edge probability corresponding to each pixel point according to the category of the gray interval corresponding to the pixel point in the window corresponding to each pixel point in each sub-region; according to the length proportion and the marginal probability of the gray interval corresponding to the gray value of each pixel point in each sub-region, obtaining an adaptive limitation parameter of each gray interval; and determining a target height corresponding ...

Carbon quantum dots, preparation method thereof and application of carbon quantum dots in perovskite solar cell

The invention discloses carbon quantum dots, a preparation method thereof and application of the carbon quantum dots in a perovskite solar cell, and belongs to the field of carbon quantum dot preparation technologies and photovoltaics. According to the carbon quantum dots, the preparation method thereof and the application of the carbon quantum dots in the perovskite solar cell, a sucrose solution is prepared by taking DMF as a solvent, microwave reaction is carried out on the sucrose solution, and extraction is performed by utilizing ethanol to obtain the carbon quantum dots; a solvent system of the carbon quantum dots is compatible with a TiO2 spray pyrolysis system; the up-conversion performance of the carbon quantum dots is utilized to absorb ultraviolet light and emit visible light, so that the illumination stability of the solar cell is improved, and the spectral response range of the solar cell can be widened; and the down-conversion performance of the carbon quantum dots is utilized ...

Disassembling method of photovoltaic module laminated part

The invention relates to the field of photovoltaic technology, and particularly provides a disassembling method of a photovoltaic module laminated part. The method comprises the following steps: in the presence of an electrode, introducing alternating current into the electrode, so that the photovoltaic module laminated part is disassembled. Compared with the prior art, the disassembling method of the photovoltaic module laminated part is based on the electromagnetic induction principle, metal components in the laminated part are induced to generate the Joule heating effect by externally adding the alternating current and exciting the magnetic field, pyrolysis of EVA components in the photovoltaic laminated part is achieved, and the disassembling method has the advantages of being high in thermal response speed, good in temperature uniformity and the like; and meanwhile, controllable and complete recovery of the battery pieces can be realized.

Thick liquid filter equipment

... 本实用新型公开了一种粘稠液体过滤装置，包括过滤弯管、自动报警器、可拆式过滤网，其中过滤弯管具有进料口与出料口，且分为进料管段、沉淀管段和出料管段，其中进料管段和出料管段方向朝上，沉淀管段整体向下弯曲且沉淀管段的管径大于进料管段和出料管段的管径，出料口的高度低于进料口。本实用新型通过过滤弯管结构的特殊设置，当胶水进入到过滤装置时，其中较大的不溶物颗粒会因重力作用沉降在过滤弯管内，使不溶物颗粒不会随胶水流动被带至可拆式过滤网上，避免了堵塞现象，同时通过可拆式过滤网对胶水进行二次过滤，提高了过滤效果，且该装置结构简单，其可拆式过滤网和过滤弯管清洗方便，实用性强。本实用新型用于浸渍胶水的过滤。 ...

Preparation method of perovskite solar cell

The invention provides a preparation method of a perovskite solar cell, and belongs to the technical field of perovskite cells, and the method comprises the steps: preparing a perovskite light absorption layer; the perovskite light absorption layer is formed by a perovskite light absorption layer precursor solution; the perovskite light absorption layer precursor solution comprises a solvent and a solute; the solvent comprises a first solvent and a second solvent; the first solvent is selected from one or more of polar solvents such as N, N-dimethylformamide with high saturated vapor pressure, N-methyl-2-pyrrolidone, 2-methoxyethanol, acetonitrile and the like; and the second solvent is 1-methylimidazole. According to the invention, 1-methylimidazole with low saturated vapor pressure is used as a solvent, a stable intermediate phase is formed, a high-quality perovskite light absorption layer is obtained, and the perovskite light absorption layer has good performance when being used for ...

Preparation method of sulfaguanidine

The invention relates to the field of chemical industry, and discloses a preparation method of sulfaguanidine. According to the invention, guanidine nitrate and p-acetamidobenzene sulfonyl chloride are subjected to a reaction, and the reaction steps comprise: adopting dicyandiamide and ammonium nitrate, carrying out heating melting, and introducing ammonia to prepare guanidine nitrate; the preparation method comprises the following steps: heating concentrated sulfuric acid to prepare sulfur trioxide, carrying out heating reaction on the sulfur trioxide and hydrogen chloride gas to prepare chlorosulfonic acid, and reacting with acetanilide to prepare an intermediate product p-acetamidobenzene sulfonyl chloride; preparing a product sulfaguanidine from p-acetamidobenzene sulfonyl chloride and guanidine nitrate; the preparation method is safe and environment-friendly, is suitable for industrial production, and has a wide application prospect.

Manufacturing method of solar thin film cell

The invention discloses a manufacturing method of a solar thin film cell. The manufacturing method comprises the following steps: providing a substrate; a patterned first electrode layer is formed on the surface of one side of the substrate, the first electrode layer comprises a plurality of first electrodes, and a first carved seam is formed between every two adjacent first electrodes; forming an electric connection structure on one side, deviating from the substrate, of the first electrode; forming a photoelectric conversion layer covering the first electrode layer, wherein the photoelectric conversion layer exposes the end part, deviating from the substrate, of the electric connection structure; the electrical connection structure divides the photoelectric conversion layer into a plurality of photoelectric conversion units; a second electrode layer covering the photoelectric conversion layer is formed, the second electrode layer comprises a plurality of second electrodes, and a second ...

Film drying device

The embodiment of the invention discloses a film drying device which comprises an air knife, an extraction gas generator, a compressed gas generator and a mixer, extraction gas and compressed gas are mixed in the mixer, the mixer supplies the mixed extraction gas and compressed gas into the air knife, and the air knife blows dry air mixed with the extraction gas to a film to be dried. The extraction gas acts on the to-be-dried film, curing of the to-be-dried film can be accelerated, and the drying speed of the film is accelerated by combining the blow-drying effect of the compressed gas on the to-be-dried film. According to the thin film drying device, the speed that a solvent in the thin film is separated from the thin film is higher, the obtained thin film is more uniform and consistent and has no phase separation phenomenon, meanwhile, the stacking direction is consistent with the direction perpendicular to the substrate, and the conversion efficiency of the perovskite thin film is improved ...

Laminated solar cell intermediate layer, preparation method thereof and laminated solar cell

The invention belongs to the technical field of solar power generation, and particularly relates to a laminated solar cell interlayer, a preparation method thereof and a laminated solar cell. The interlayer provided by the invention comprises an ultrathin metal electrode layer, a metal grid line and a doped polyaniline layer which are sequentially stacked. Wherein the ultrathin metal electrode layer has the advantages of high conductivity and high light transmittance, and the doped polyaniline layer has the advantages of high conductivity, proper work function (-5.14 eV), good environmental stability, good oxidation resistance, high temperature resistance, easy film formation and the like. The intermediate layer provided by the invention has good photoelectric performance, and can be used in the laminated solar cell to realize accumulated output of respective voltages of the bottom cell and the top cell; and the middle layer is simple in structure and easy to prepare, and has a good market ...

Communication cabinet

... 本实用新型提供一种通讯柜，包括柜体，所述柜顶端设有顶板，柜体侧面设有S形散热孔，柜体内上部设有干燥箱、中部内侧面设有若干相互平行的支撑条，支撑条上设有支撑板，柜体底部设有防尘箱，柜体下表面四角处设有移动装置，所述防尘箱前面设有凹槽，所述凹槽内设有静电发生器，所述静电发生器外侧设有吸尘网，且所述防尘箱上部左侧设有加热装置、右侧设有制冷装置，柜体内设有温度传感器。本实用新型的有益效果是: 结构简单、操作方便、可进行温度补偿、防尘除湿效果好、使用寿命高、方便万向轮停止固定。 ...

Communication tube

... 本实用新型提供一种通讯管，包括管体，所述管体横截面是由弧形和直线连接组成的形状，且管体弧形面上均匀的设有若干通风槽，相邻通风槽之间设有位于管体上的加强筋，所述直线面上设有若干个散热片，述通风槽与通风装置连接，所述通风装置包括内管和外管，所述内管与通风槽连通，所述外管顶部设有密封盖、上部设有通气孔，外管和内管之间设有位于中部的隔层，且所述内管内侧上部设有风机，内管中上部为收缩段，收缩段上方为过渡段，所述管体由内向外依次设有第一橡胶层、纤维编织层、通讯层、第二橡胶层、屏蔽层以及第三橡胶层。本实用新型的有益效果是：结构简单、散热效果好、使用寿命长。 ...

Communication cable

... 本实用新型提供种通讯电缆，包括外护套体，及在外护套体内设置的多个导体组，在外护套体最内侧设有阻水层，所述的导体组包括导体、泄露线、填充绳和防干扰体，所述的防干扰体内设有导体、泄露线、填充绳，所述的防干扰体包括螺旋空心管，在导体外包有螺旋空心管，在银丝编织层外包有护套管，在电缆中心设置根中心线芯，所述的中心线芯由三根绝缘线芯外依次绕包聚氨脂包带层、金属屏蔽层构成，所述的外护套体包括由内到外依次设有绝缘层、双层屏蔽层和护套体。本实用新型的有益效果是使通讯线缆具有良好的防水性，适用于多种工作环境，使用方便，且使用寿命长；泄露线能平衡静电并泄露静电，提高电缆的稳定性和安全性。 ...

TSP water plugging sealing element reaming section drilling tool and using method thereof

The invention relates to the technical field of advanced geological forecast, in particular to a TSP water plugging sealing element chambering section drilling tool and a using method thereof.The TSP water plugging sealing element chambering section drilling tool comprises a drilling mechanism, the drilling mechanism is matched with a hole and used for machining a chambering section on the hole, and a sealing element is installed in the hole and matched with the chambering section; and the reaming section is used for bearing the impact force of blasting and limiting the sealing element. Due to the limiting effect of the reaming section, large relative displacement between the sealing piece and the hole during explosive explosion can be avoided, release of explosive shock waves is reduced, and the actual error of elastic waves is reduced.

Two-dimensional graphene as well as preparation method and application thereof

The invention relates to the technical field of graphene, and particularly provides two-dimensional graphene as well as a preparation method and application thereof. The preparation method of the two-dimensional graphene comprises the following steps: (1) drafting two-dimensional graphene oxide to obtain an intermediate product; and (2) carrying out reduction treatment on the intermediate product to obtain the two-dimensional graphene. Compared with the prior art, the method has the advantages that the wrinkle morphology is constructed on the surface of the two-dimensional graphene through drafting and reduction treatment, so that the conductive mode of the two-dimensional graphene is converted from a semiconductor type to a metal type, the metal abundance in the two-dimensional graphene is improved, and the application of the two-dimensional graphene in the fields of high-power electronic devices and the like is facilitated.

Preparation method of large-area perovskite thin film

The invention provides a preparation method of a large-area perovskite thin film, which belongs to the technical field of perovskite thin films, and comprises the following steps: atomizing an anti-solvent by adopting high-pressure gas, and spraying the anti-solvent on the surface of a precursor to obtain the large-area perovskite thin film. According to the method, the anti-solvent is atomized by using the high-pressure gas, the anti-solvent is uniformly sprayed on the surface of the precursor while the solvent is quickly volatilized by the high-pressure gas, so that the perovskite solute is quickly separated out, the perovskite is crystallized through the online annealing device integrated on the air knife, and the method is used for preparing the perovskite thin film in a large area.

Decorative paper printing dry construction

... 本实用新型公开了一种装饰纸印刷干燥结构，包括墨池和墨池上的卷纸滚筒，所述卷纸滚筒的后方设置有吹风模块，所述吹风模块包括吹风腔，所述吹风腔的前端分布有吹嘴，所述吹风腔的后端分别连接有进风管和出风管，所述吹风腔的后方设置有回气风机和天然气加热器，其中所述进风管与天然气加热器连接，所述出风管依次与回气风机和天然气加热器连接；该干燥通过合理的结构改良，尤其是通过天然气加热器替换了原来燃煤导热油加热器和回热风机作为主要干燥吹风结构，不但节约了成本，而且降低了对空气的污染，大大改善生产工作环境的清洁度和安全度。 ...

Shield segment type selection and prediction method

The invention discloses a shield segment type selection and prediction method, which comprises the following steps of: S1, determining an assembly rule of each ring segment according to the condition of a construction site; s2, dividing a tunnel design axis into a plurality of straight line segments and curve segments, and sequentially calculating linear parameters of each straight line segment and each curve segment according to the mileage size sequence; s3, linear parameters corresponding to the tunnel design axis position where the current shield tunneling machine is located are obtained; s4, calculating all optional splicing point positions Ki of the current ring duct piece; s5, carrying out weighted calculation on the axis rotation angle, the shield tail gap, the thrust cylinder stroke and the shield tunneling machine trend of the current ring pipe piece, calculating a weighted score Ji of each selectable splicing point position Ki in the current ring pipe piece, and selecting the ...

Solar cell and manufacturing method thereof

The invention provides a solar cell and a manufacturing method thereof, and the manufacturing method comprises the steps: preparing a plurality of cell pieces, enabling the cell pieces to be sequentially connected in series through a plurality of welding strips, enabling the cell pieces to comprise a first cell piece and a second cell piece which are adjacently arranged, enabling the welding strips to comprise a first section and a second section, enabling the welding strips to comprise a first welding strip and a second welding strip, a standby welding strip assembly is prepared, the standby welding strip assembly comprises an insulation melting layer and a conductive layer, the standby welding strip assembly is arranged between the first battery piece and the second battery piece, the first section of the insulation melting layer is located on the side away from the first battery piece, and the conductive layer is located on the side, away from the first battery piece, of the insulation ...

Ratchet wrench device for operating valve hand wheel

The ratchet wrench device for operating the valve hand wheel comprises a force bearing plate, the force bearing plate is used for supporting elements above the force bearing plate, the force bearing plate is provided with a length telescopic assembly, a wrench transmission assembly, a detachable torsion head assembly and a hand wheel transmission rod clamping assembly, and a clamping jaw auxiliary assembly is arranged behind the force bearing plate; the ratchet wrench device relates to the technical field of wrenches, and has the following beneficial effects that the ratchet wrench device can be used when facing a valve with a groove, and meanwhile, the detachable torsion head assembly can be used for detaching a front torsion head under the condition that no groove is available for leveraging force; a hand wheel transmission rod is clamped through the hand wheel transmission rod clamping assembly, a valve hand wheel spoke is clamped through the clamping jaw auxiliary assembly behind the ...

Self-cleaning photovoltaic glass and preparation method thereof

The invention provides a preparation method of self-cleaning photovoltaic glass. The preparation method comprises the following steps: A) preparing a titanium dioxide layer on a light receiving surface of a pretreated substrate; b) preparing a single silicon dioxide layer on the surface of the titanium dioxide layer; c) etching the titanium dioxide layer to obtain a titanium dioxide micron column; and D) depositing titanium dioxide nanospheres on the surface of the silicon dioxide layer to obtain the self-cleaning photovoltaic glass. The invention further provides the self-cleaning photovoltaic glass. According to the invention, a titanium dioxide micro-nano structure is constructed on the surface of the substrate, so that the obtained photovoltaic glass has a strong hydrophobic characteristic and has a function of photocatalytic decomposition of small molecules, and the self-cleaning effect of the photovoltaic glass is improved.

Preparation method and application of perovskite material layer containing PN junction structure

The invention provides a preparation method and application of a perovskite material layer containing a PN junction structure. The preparation method comprises the following steps: preparing a first perovskite solution by using a first solute, performing wet film formation, and performing annealing treatment to form an N-type perovskite layer; the first solute comprises an N-type doping material and a perovskite precursor material, and the perovskite precursor material is one or more of PbI2, CsI, MAI, FAI and PbBr2; preparing a second perovskite solution by adopting a second solute, performing wet film formation, and performing annealing treatment to form a P-type perovskite layer; the second solute comprises a P-type doping material and the perovskite precursor material; and laminating the N-type perovskite layer and the P-type perovskite layer to form a PN junction to obtain the perovskite material layer. The P-type perovskite thin film and the N-type perovskite thin film are formed ...

Preparation method and application of perovskite thin film with low defect state density

The invention belongs to the technical field of perovskite solar cells, and particularly relates to a preparation method and application of a low-defect-state-density perovskite thin film, and the preparation method of the perovskite thin film comprises the following steps: (1) preparing a perovskite material layer through a solution method or a gas phase method; and (2) an argon plasma source or a Hall/Kaufman ion source is adopted to bombard the surface of the perovskite material layer, the average particle energy range of argon ions is 1-100 eV, a perovskite thin film is obtained, and the surface of the perovskite thin film has a single Pb < 2 + > shallow energy level defect. By means of the process method, defects on the surface of perovskite can be passivated in a targeted mode, the surface defect state density of the perovskite film layer can be reduced, the defect state density can be reduced by three orders of magnitude, the carrier transmission efficiency is improved, and finally ...

Multi-agent cooperative repeated game method based on hierarchical companion rewards

The invention discloses a multi-agent cooperative repeated game method based on hierarchical companion rewards, focuses on the problem of cooperative difficulty caused by reward independence and environmental risk factors of dispersive self-reward multi-agents, and aims at enabling the agents to find a cooperative strategy for maximizing global rewards. A hierarchical companion reward method is provided, in the training process, an intelligent agent deduces opponent strategy changes in real time according to a historical interaction track, self strategies are dynamically changed in companion rewards of different levels, and after one-time interaction is completed, the interaction is added into the historical track to be circulated, so that the interaction efficiency is improved. Mutual cooperation is realized, utilization by non-cooperative opponents in the learning process is prevented, and the learning cooperation ability of the decentralized game agent is improved.

Preparation method of three-dimensional graphene, drafting device and application

The invention relates to the technical field of graphene, and particularly provides a preparation method of three-dimensional graphene, a drafting device and application. The preparation method of the three-dimensional graphene comprises the following steps: (1) carrying out primary reduction treatment on flaky three-dimensional graphene oxide to obtain a first intermediate product; (2) drafting the first intermediate product to obtain a second intermediate product; and (3) performing secondary reduction treatment on the second intermediate product to obtain the three-dimensional graphene. Compared with the prior art, the method disclosed by the invention has the advantages that more wrinkle shapes are constructed on the surface of the three-dimensional graphene through plastic drafting and reduction treatment, so that the conductive mode of the three-dimensional graphene is converted from a semiconductor type to a metal type, and meanwhile, the inherent mechanical property advantage of ...

Method and device for generating lane boundary in own vehicle truth value system

The invention relates to a method for generating a lane boundary in an own vehicle true value system, and the method comprises the steps: generating the lane boundary based on the received offline measurement data; predicting the position of a missing point in the lane boundary based on the position of the effective point in the lane boundary; and correcting and/or smoothing the position of each point in the lane boundary based on a lane constraint condition. The invention also relates to a device for generating the lane boundary in the own vehicle truth value system, a computer storage medium and a computer program product.

Method for enhancing surface bonding performance of polytetrafluoroethylene material through laser texturing

The invention discloses a method for enhancing the surface bonding performance of a polytetrafluoroethylene material through laser texturing, which comprises the following steps: placing the polytetrafluoroethylene material on a displacement platform of a laser processing system, and wiping the surface of the polytetrafluoroethylene material with a solvent; adjusting to a laser focus position of a laser processing system according to the surface position of the polytetrafluoroethylene material, and setting a computer program according to the size and the processing area of the polytetrafluoroethylene material; setting process parameters of a laser processing system; a dust removal system is additionally arranged in the machining area, and dust generated in the machining process is sucked and removed; and a laser processing system is started to process the surface of the polytetrafluoroethylene material, so that the surface of the polytetrafluoroethylene material presents a textured structure ...

Dynamic measurement method for gear meshing rigidity of gearbox

The invention belongs to the technical field of gearbox performance measurement, and relates to a gearbox gear meshing dynamic measurement method. When the gear meshing rigidity is dynamically measured, an angle difference A is defined as follows: an angle signal of an input end angle encoder (19) is subtracted from an angle signal of an output end angle encoder (9) multiplied by a transmission ratio of a gear box (11), and a curve of the torque of the input end of the gear box (11) and the angle difference is drawn; and the slopes K1 and K2 are meshing stiffness data of the positive and negative tooth surfaces of the gear box (11). According to the dynamic measurement method for the gear meshing rigidity of the gearbox, the gear meshing rigidity of the gearbox can be measured conveniently and reliably, high-sampling-rate collection is supported through output signals of the torque and angle encoder, it is ensured that the measurement result is more accurate, the requirement for measurement ...

Perovskite battery structure containing grid lines and preparation method thereof

The invention discloses a perovskite cell structure containing grid lines, and belongs to the field of perovskite solar thin film electrical components. The perovskite cell structure sequentially comprises a glass substrate, a transparent conductive thin film, a first transmission layer, a perovskite absorption layer, a second transmission layer and a metal electrode layer from bottom to top. Grooves is formed in the surface, in contact with the transparent conductive thin film, of the glass substrate, and grid lines are deposited in the grooves. By etching the surface of the glass substrate to form the grooves and embedding the metal grid lines, the technical problems of non-uniform subsequent coating and difficulty in blade coating caused by surface bulge of the conventional prepared grid lines are solved. By embedding the grid lines into the glass, the unevenness of the glass substrate caused by the height of the grid lines is avoided, and the formation of a uniform film layer in the ...

H-grade high-pressure solvent-free impregnating varnish with stable storage as well as preparation method and application of H-grade high-pressure solvent-free impregnating varnish

The invention discloses H-grade high-pressure solvent-free impregnating varnish with stable storage as well as a preparation method and application of the H-grade high-pressure solvent-free impregnating varnish. The solvent-free impregnating varnish comprises heat-resistant epoxy resin, epoxy resin, a curing agent, a polymerization inhibitor, an initiator, a curing accelerator, a flexibilizer and a reactive diluent in a weight part ratio of (20-60): (90-120): (2-40): (0-5): (0-5): (0-5): (0-5): (20-300). According to the impregnating varnish, an epoxy resin system which is wide in raw material source and relatively low in cost is adopted, and the whole solvent-free impregnating varnish is stable in storage, low in viscosity, convenient for low-temperature impregnation, short in gelation time, energy-saving and environment-friendly through compounding and proportioning design of the heat-resistant epoxy resin, the common epoxy resin, the heat-resistant curing agent and the bifunctional reactive ...

Transmission mechanism and mechanical arm structure

The invention provides a transmission mechanism and a mechanical arm structure. The transmission mechanism comprises a driving transmission device, a driven transmission device and a flexible part. A first conical surface is formed at one end of the driving driver, a second conical surface is formed at one end of the driven driver, the first conical surface is tangent to the second conical surface, one end of the flexible part is fixed to the first conical surface, and the other end of the flexible part extends to the tangent position of the first conical surface and the second conical surface, continues to extend along the second conical surface and is fixed to the second conical surface. On one hand, the transmission mechanism can achieve axial and radial supporting of the driving driver and the driven driver, the problem of transmission shaking is avoided, and the accuracy is improved. On the other hand, the steering problem of the flexible part can be solved through conical surface ...

Dilute sulfuric acid wastewater recovery treatment equipment

The utility model discloses dilute sulfuric acid wastewater recovery treatment equipment which comprises a first filtering device, a first electric turbine, a first heating device, a second heating device, a condensing device and a finished product storage device, the first filtering device is a cube with an internal space, and an inlet pipe is arranged above the top plane of the first filtering device; an electric control valve is arranged on the inlet pipe, one end of the inlet pipe is connected with the first filtering device, the other end of the inlet pipe is connected with the electric control valve, and the equipment further comprises a second filtering device, a second electric turbine and a rectification concentration device. Through the mode, according to the dilute sulfuric acid wastewater recycling treatment equipment provided by the utility model, the electric control valve is arranged at the water inlet, the valve can be opened and closed according to the specific condition ...

Speed sensor

The invention belongs to the technical field of sensors, and particularly relates to a speed sensor for speed measurement of a traction motor rotor of a motor train unit. The speed sensor comprises a probe shell and a circuit element arranged in the probe shell, the circuit element comprises a Hall sensitive element and an operational amplifier circuit which are electrically connected with each other, the circuit element further comprises a protection element, and the protection element is electrically connected with the operational amplifier circuit. The power supply circuit has good surge current resistance.

Perovskite assembly annealing piece, annealing method thereof and battery

The invention relates to the technical field of battery devices, and particularly provides a perovskite assembly annealing piece, an annealing method thereof and a battery. The annealing method of the perovskite assembly prefabricated member comprises the following steps: in the presence of a first electrode, introducing an alternating current into the first electrode, and carrying out annealing treatment on the perovskite assembly prefabricated member to obtain a perovskite assembly annealed member; the perovskite assembly prefabricated member comprises a perovskite active layer, a hole transport layer and FTO glass; the distance between the first electrode and the perovskite active layer is larger than or equal to 2 cm. Compared with the prior art, the method has the advantages that the alternating current is introduced into the first electrode to generate the alternating magnetic field, then eddy current is induced to be formed in the perovskite active layer, Joule heat formed by the ...

Preparation method of perovskite core layer

The invention belongs to the field of chemical processes, and particularly relates to a preparation method of a perovskite core layer. The method provided by the invention comprises the following steps: preparing a mesoporous layer on a substrate, then depositing a metal layer on the mesoporous layer, halogenating, reacting with an AX compound, and annealing to obtain a perovskite core layer; a in the AX compound is one or more of methylamine cations, formamidine cations and Cs < + >, and X is halide ions. The preparation process of the perovskite core layer is optimized and selected, so that the perovskite filling rate of the mesoporous layer can be improved, and meanwhile, the crystal crystallization film forming effect of perovskite is improved.

Perovskite solar cell and preparation method thereof

The invention provides a perovskite solar cell and a preparation method thereof, the perovskite solar cell is provided with a plurality of grooves arranged in an array on the surface of one side of a first charge transport layer away from a substrate, and a plurality of protrusions arranged in an array on the surface of one side of a perovskite film facing the substrate, and in a first direction, the first charge transport layer and the second charge transport layer are arranged in parallel. According to the perovskite solar cell of the structure, the perovskite thin film and the first charge transmission layer are well combined, the pinning effect can be achieved, interface transmission of charges in the perovskite solar cell is improved, and the perovskite thin film is provided with the protrusions arranged in an array mode, so that the performance of the perovskite solar cell is improved. According to the perovskite solar cell, the thickness of the perovskite thin film is changed periodically ...

Method for testing abnormal sound of automobile half shaft

The invention belongs to the technical field of automobile half shaft performance testing, and relates to an automobile half shaft abnormal sound testing method. In the rotation control process of the half shaft, the microphone mounted on the microphone bracket realizes noise monitoring, and feeds back the data model of the acquired noise size to the data acquisition part to realize data acquisition; signals required to be collected for testing comprise a rotating speed and torque signal of an output end dynamometer and a sound pressure signal; a rotating speed signal of the output end dynamometer is tested by an encoder of the output end dynamometer, a torque signal is tested by a torque sensor, and a sound pressure signal is tested by a microphone. A rotating speed signal, a torque model and a sound pressure signal are acquired through the data acquisition part and then transmitted to the data acquisition computer, so that noise testing of the half shaft in different angle states is realized ...

Acrylonitrile copolymer as well as preparation method and application thereof

The invention relates to an acrylonitrile copolymer as well as a preparation method and application thereof. According to the main technical scheme, the preparation method of the acrylonitrile copolymer comprises the following steps: acrylonitrile and a comonomer are subjected to an atom transfer radical copolymerization reaction, and the acrylonitrile copolymer is obtained; wherein the comonomer is a methacrylic acid modified phenol derivative monomer or a methacrylic acid modified terpene derivative monomer. The invention is mainly used for providing and preparing the acrylonitrile copolymer composed of a phenol or terpenoid derivative monomer unit and an acrylonitrile unit, the weight-average molecular weight of the acrylonitrile copolymer is 150000-250000, and the molecular weight distribution is 1.2-1.4. The acrylonitrile copolymer is used for preparing polyacrylonitrile fibers and polyacrylonitrile-based carbon fibers, and the tensile strength of the prepared polyacrylonitrile fibers ...

High-pressure reaction kettle assembly system

The invention relates to a high-pressure reaction kettle assembly system which comprises a plurality of reaction kettles, a plurality of lug seats are uniformly arranged on the side walls of the reaction kettles in the circumferential direction, and pin shafts are detachably arranged on the lug seats; a plurality of reaction kettle via holes corresponding to the reaction kettles are formed in the supporting platform, a plurality of lug via holes are uniformly formed in the edges of the reaction kettle via holes, and a plurality of stop blocks corresponding to the reaction kettle via holes are uniformly arranged on the supporting platform in the circumferential direction; the stop blocks, the lug via holes and the lugs on the reaction kettle are consistent in number; and hoisting equipment, the device comprises two sliding rails symmetrically arranged on the two sides of a through hole of the reaction kettle, a walking mechanism arranged on the two sliding rails in a sliding mode, a hoisting ...

Scribing method for reducing dead zone area of thin-film solar cell

The invention discloses a scribing method for reducing the dead zone area of a thin-film solar cell, and belongs to the field of thin-film solar cell assemblys. A plurality of P1 lines are formed after etching is conducted on a bottom electrode layer, etching is conducted on an absorption layer to form P2 after cell PN junctions are formed, the bottoms of the P1 lines extend to the bottom electrode layer, and the P2 is located in a closed area formed by the P1 lines. Then, a top electrode layer is deposited, a grid line is prepared on the upper surface of the top electrode layer and connected with the P2, the surface of the top electrode layer after the grid line is prepared is etched to form a P3 line, and the bottom of the P3 line extends to the upper surface of the bottom electrode layer, thus realizing segmentation and series connection of a thin-film solar cell. The P1 lines and the P2 are specially designed, and the P2 is located in the semi-closed area formed by the P1 lines, so ...

Annealing method and annealing device for perovskite assembly prefabricated member

The invention relates to the technical field, and particularly provides an annealing method and an annealing device for a perovskite assembly prefabricated member. The annealing method of the perovskite assembly prefabricated member comprises the following steps: heating the perovskite assembly prefabricated member by using a flat plate type heating device to obtain a perovskite assembly; the included angle between the cross section of the flat plate type heating device and the cross section of the perovskite assembly prefabricated member is 5-15 degrees. Compared with the prior art, the annealing method has the advantages that the time for the perovskite film to reach the steady-state annealing temperature is shortened, the stability of annealing temperature distribution is further enhanced, and the preparation of the large-area perovskite film with uniform components is facilitated.