刮刀

Zinc cadmium sulfide/rorispora ovale hybrid system and preparation and carbon sequestration method thereof

The invention provides a zinc cadmium sulfide/rorispora ovale hybrid system and a preparation and carbon sequestration method thereof. The zinc cadmium sulfide/rorispora ovale hybrid system comprises zinc cadmium sulfide nanoparticles and rorispora ovale, wherein the zinc cadmium sulfide nanoparticles are distributed on the surfaces of cells of the rorispora ovale. Compared with the prior art, the zinc cadmium sulfide/rorispora ovale hybrid system has the advantages that in the carbon sequestration process, the condition of photo-induced electron and hole recombination is effectively reduced, the harm of light corrosion is relieved, and meanwhile, the biotoxicity of the photosensitizer is improved to a certain extent due to introduction of the zinc element. The photoelectrons are transmitted to the rorispora ovale to serve as reducing power for carbon sequestration, carbon dioxide is converted into a multi-carbon product acetic acid with high utilization value, and an environment-friendly ...

Air tightness detection device for hydrogen fuel cell stack

The invention relates to the technical field of new energy batteries, and discloses a hydrogen fuel cell stack airtightness detection device, which comprises a detection table used for bearing a hydrogen fuel cell stack; and the detection mechanism is connected to the detection table. According to the hydrogen fuel cell stack airtightness detection device, a second air pump conveys air into an air bag sealing assembly through a second air conveying pipe, and the air bag sealing assembly after air conveying expands, so that an outer side bag layer is in contact with the inner side wall of an end cover, and an inner side bag layer is in contact with the inner top wall of the end cover and the top of a hydrogen fuel cell stack; the air bag sealing assembly drives the rubber sealing part to move downwards after being expanded, and the rubber sealing part is tightly connected to the upper end of the hydrogen fuel cell stack in a sleeving mode under the action of the abutting part, so that the ...

Proton membrane assembly of hydrogen fuel cell

The present invention relates to the technical field of hydrogen fuel cells, and discloses a hydrogen fuel cell proton membrane assembly, which comprises a placing box, the top of the placing box is provided with a sealing mechanism for sealing the placing box, and the sealing mechanism comprises two fixed spur racks arranged left and right at a certain interval, lifting mechanisms are arranged on the two sides of the interior of the containing box, limiting mechanisms used for fixing the sealing mechanism are arranged on the two sides of the inner bottom wall of the containing box, each lifting mechanism comprises a connecting roller, and a driving gear meshed with the corresponding fixing spur rack is installed in the middle of each connecting roller. Through cooperative arrangement of a fixed spur rack, a connecting roller, a driving gear, a rotating roller and a driven gear, a movable spur rack can be driven to move up and down, so that a proton membrane can be driven to enter a placement ...

Data security storage method and system for Internet users

The invention discloses a data security storage method and system for internet users, the system comprises an information acquisition unit, a data classification unit, a data storage unit and an information output unit, the invention relates to the technical field of user data offline storage, and solves the problems of offline storage of large-capacity data and data security. In order to solve the technical problems of low reading speed, influence on user experience and troublesome operation of manually deleting data by a user during subsequent use and reading, different data are classified differently, so that ordered storage of the data is realized, subsequent search of the user is facilitated, and the user experience is improved. According to the method and the system, the data is divided into common data and non-common data, the common data is further divided and stored according to the capacity size, the reading speed of a user during subsequent use is improved, the safety of data ...

Nickel-chromium alloy

The nickel-chromium alloy comprises the following components in percentage by mass: less than or equal to 0.15% of C, 0.6-1.8% of Si, less than or equal to 0.6% of Mn, less than or equal to 0.01% of P, less than or equal to 0.01% of S, 19-21% of Cr, less than or equal to 0.3% of Al, less than or equal to 1.2% of Fe, 0.35-0.45% of Ti, 0.05-0.10% of Re, 0.005-0.010% of B and the balance of Ni and inevitable impurities. The mechanical and physical properties of the alloy are superior to those of the existing Cr20Ni80 alloy, Zr, La, Ce and other easily oxidized and volatile elements which are difficult to accurately control in the vacuum induction melting and electroslag remelting process in the existing process are not added in component design, the process reproducibility is good, the operability is high, and popularization is easy.

METHOD FOR SETTING ATTRIBUTE VALUE OF INTERFACE ELEMENT, AND APPARATUS AND SMART DEVICE THEREFOR

The present application discloses a method for setting an attribute value of an interface element, and an apparatus and smart device for the same, for solving the problem in the prior art in which changing interface elements in a terminal leads to increased occupation of terminal resources. The method comprises: acquiring an attribute value setting message, wherein the attribute value setting message contains an attribute value; and sending the attribute value setting message, so that an application of the receiver of the attribute value setting message assigns a value to an attribute of the interface element according to the attribute value.

Solid electrolyte membrane, preparation method and application thereof, and solid-state battery

The invention relates to the technical field of battery materials, in particular to a solid-state electrolyte membrane, a preparation method and application thereof and a solid-state battery. The solid electrolyte membrane comprises a lithium metal stabilizing layer, a lithium dendrite inhibiting layer and a high-conductivity layer which are stacked in sequence, wherein the lithium metal stable layer contains a first sulfide solid electrolyte, and the surface of the first sulfide solid electrolyte is coated with a lithium sulfide protective layer; the lithium dendrite inhibition layer contains a second sulfide solid electrolyte, and the porosity of the lithium dendrite inhibition layer is less than 8%; the high-conductivity layer contains a third sulfide solid electrolyte, and the appreciation crystallinity index of the third sulfide solid electrolyte is gt; 1.1, the particle size is greater than 20 microns. Under the condition that a third component is not introduced, the single-component ...

Hydrogen fuel cell stack performance testing device

The invention provides a hydrogen fuel cell stack performance testing device, and relates to the technical field of novel fuel cells, the hydrogen fuel cell stack performance testing device comprises a vibration machine main body, a bearing plate is arranged at the vibration end of the vibration machine main body, an L-shaped positioning plate is fixedly arranged on the bearing plate, two clamping grooves are formed in the bearing plate, and the L-shaped positioning plate is fixedly connected with the clamping grooves. During use, the driving mechanism is controlled to drive one clamping head to move, the clamping head moves to drive the rack to move, the rack moves to drive the other rack to move through transmission of the two gears, and the two racks move to drive the two side pressing plates to move towards the L-shaped positioning plate to horizontally clamp the fuel cell stack. Meanwhile, one gear rotates to drive a threaded column to rotate, and the threaded column rotates to drive ...

BMC cluster management method, system and device

The invention discloses a BMC (Baseboard Management Controller) cluster management method, system and device, which are used for realizing batch access and control of all BMCs in a cluster, reducing the complexity of manual batch management and improving the batch access and management control efficiency in the cluster. The method comprises the following steps: querying whether the same BMC (Baseboard Management Controller) exists in the same subnet based on a first target broadcast message, wherein a compatible feature code carried by the same BMC is the same as a compatible feature code carried by a target BMC; if yes, adding the target BMC into a target BMC cluster corresponding to the same BMC; if not, automatically creating a target BMC cluster for the target BMC based on the compatible feature code of the target BMC; a master BMC in the target BMC cluster is elected through a distributed election algorithm, the master BMC and all slave BMCs in the target BMC cluster are associated ...

Morirpora ovale-nano semiconductor hybrid system, and preparation method and application of morirpora ovale-nano semiconductor hybrid system

The invention provides a preparation method of a rorispora ovale-nano semiconductor hybrid system. The preparation method comprises the following steps: inoculating rorispora ovale into an anaerobic culture medium for anaerobic culture under sterile and anaerobic conditions until the absorbance OD600 of rorispora ovale liquid in the anaerobic culture medium reaches 0.2-0.3; adding a nano semiconductor material into the murine ovale liquid for compounding treatment to obtain a murine ovale compound system; wherein the concentration of the nano semiconductor material in the rorispora ovale bacterial liquid is 0.1 to 1.0 mM; centrifuging the rorispora ovale composite system, separating precipitates, and inoculating the precipitates into a phototrophic culture medium; and adding a hole sacrifice agent into the photosynthetic culture medium to obtain the rorispora ovale-nano semiconductor hybrid system. The hybrid system constructed by the invention can realize high-efficiency and low-consumption ...

Method for improving nitrogen hit rate of high-nitrogen steel smelted by vacuum induction furnace

The invention discloses a method for improving the nitrogen hit rate of high-nitrogen steel smelted in a vacuum induction furnace. The method comprises the following steps: (1) vacuum melting: burdening according to designed components, charging, melting, refining and alloying; (2) gas-phase nitriding: filling nitrogen to carry out gas-phase nitriding; the nitrogen partial pressure required by nitriding is calculated by the following formula (I); and (3) bottom blowing nitrogen control: after nitrogen charging is finished, bottom blowing nitrogen is started, and the duration of bottom blowing nitrogen is calculated according to the following formula (2). According to the method, a composite gas phase nitrogen increasing process of nitrogen bottom blowing is used under high nitrogen partial pressure, the controllability is high, meanwhile, the alloy cost is reduced, and harmful elements in the nitralloy are prevented from entering steel; the upper limit of nitrogen increase is higher, more ...

Steel cover box formwork for overwater pile group concrete bearing platform and construction method

The invention relates to a steel cover box formwork for an overwater pile group concrete bearing platform, which comprises a side formwork, a bottom plate and a truss girder, the bottom plate is formed by splicing a main rectangular frame in the middle and auxiliary rectangular frames on two sides into a * shape, the truss girder is formed by splicing special-shaped truss girders into a circle, and the side formwork is divided into an upper side formwork and a lower side formwork which are formed by splicing a plurality of arc-shaped side formworks. The bottom plate of the steel cover box formwork adopts a detachable bottom plate structure, when the bottom plate is detached, the height of the bottom plate frame can be reduced by utilizing the lifting device, a construction operation platform is reserved, engineering materials can be saved, convenience of bottom plate detaching operation is facilitated, and the truss girder and the side formwork are of an assembled structure, so that the ...

Video track data set lane global following vehicle pair matching and extracting method

According to the video track data set lane global following vehicle pair matching and extracting method, a vehicle track data set comprises track point information of each vehicle on a collected road at each moment, and the method plays an important role in research on macroscopic traffic phenomena and microscopic driving behaviors such as following and lane changing. According to the method, a set of standardized following vehicle pair matching and extracting method is established, driving behaviors existing in each track are detected and classified according to the track data set, and the following vehicle pairs in the following state within the whole lane length range can be efficiently and rapidly recognized, so that a foundation is laid for in-depth research of the driving behaviors.

Collapsible loess curing construction method

The invention discloses a collapsible loess solidification construction method which comprises the following steps: detecting the soil texture of a ground to be constructed, and determining the position of a foundation for the ground to be constructed; the cylindrical steel pile pipe is driven into an original foundation, a pile hole is formed after the cylindrical steel pile pipe is pulled out, and then prepared plain soil, lime soil, lime soil, cement soil and other materials are backfilled; a heavy hammer falls from a certain height to tamp a soil layer, and after repeated tamping, a position is selected again for punching; materials such as cement and lime are injected into the hole filled with the reinforcement cage, and the hole is stirred through a deep stirring machine; deep-layer punching is conducted at the position close to the concrete column pile, and a compaction pile is formed by ramming the steel pipe into the upper portion of the expansion material through a ramming method ...

Method, system and device for autonomously and safely capturing abnormal information of BMC (Baseboard Management Controller) serial port

The invention discloses a method, a system and a device for autonomously and safely capturing abnormal information of a BMC (Baseboard Management Controller) serial port, which are used for autonomously and safely capturing the abnormal information and improving the safety. The method is applied to a baseboard management controller BMC, a serial port information analysis module is arranged in the BMC, and the autonomous security capture method comprises the steps that serial port information output by a serial port of the BMC is monitored in real time, and the serial port information is mirrored to the serial port information analysis module in real time; matching the serial port information based on a preset abnormal information matching template through the serial port information analysis module, and determining whether abnormal information exists or not according to a matching result; when it is determined that the abnormal information exists, a throwing node of the abnormal information ...

Hydrogen heat exchange device for testing hydrogen fuel cell

The invention relates to the technical field of hydrogen heat exchange, and discloses a hydrogen heat exchange device for testing a hydrogen fuel cell, the hydrogen heat exchange device comprises a bottom plate, vertical plates are mounted on both sides of the top of the bottom plate, a plurality of elastic pieces are arranged between the two vertical plates, and a supporting plate is mounted at the top ends of the elastic pieces; and a heat exchange mechanism for heating or cooling and a gas storage mechanism for storing hydrogen are mounted at the top of the supporting plate. A rotating rod can be driven to rotate through cooperative arrangement of a circular gear, a rotating shaft, a first bevel gear and a fourth bevel gear, then a valve rod on a control valve can be driven to rotate through cooperative arrangement of the rotating rod, a second bevel gear and a third bevel gear, and when the air inlet amount of the air storage tank reaches the maximum, the control valve closes an air ...

Free piston Stirling generator

The invention relates to the technical field of generators, and provides a free piston Stirling generator which comprises a Stirling engine, a linear generator and a cooling device, a rotor of the linear generator is connected with the power output end of the Stirling engine, and the cooling device is configured to cool the linear generator. According to the arrangement, the linear generator is cooled through the cooling device, the influence of the temperature of the Stirling engine on the temperature of the linear generator can be prevented or relieved, and when the cold end temperature of the Stirling engine is increased, the temperature of the linear generator can be prevented from rising, and magnetic attenuation of the magnet can be avoided; and the output performance of the linear generator is ensured.

Two -sided waterproof buffering composite paperboard

... 本实用新型公开了种双面防水缓冲复合纸板，依次由镀铝膜、中间淋膜层、牛皮卡纸或纸板、塑料淋膜层四层结构组成，镀铝膜设置在最外层，镀铝膜通过中间淋膜层与牛皮卡纸或纸板粘合连接，塑料淋膜层粘合在牛皮卡纸或板纸上。本实用新型所提出的种双面防水缓冲复合纸板，可有效防止铝板、铜板在贮运过程中由于外力造成的钢板物理损伤，同时可防止钢板由于淋雨、浸水造成的包装功能失效，并且成本低廉，成本仅为塑料护板的半不到，市场广阔。 ...

Hydrogen supply device

The invention provides a hydrogen supply device, and relates to the technical field of fuel cells, the hydrogen supply device comprises a mounting plate, the mounting plate is provided with a first clamping groove, the inner wall of the first clamping groove is slidably connected with a sliding strip in a single-degree-of-freedom manner, the mounting plate is provided with a driving mechanism for driving the sliding strip to move, and when a hydrogen cylinder is mounted, the sliding strip is driven by the driving mechanism to move. A driving mechanism is started, a supporting base moves to push a hydrogen cylinder to move till a gas outlet pipe is inserted into a second pipe groove and abuts against a second sealing ring, then the hydrogen cylinder continues to move, a connecting pipe is pushed to move, a second pushing head can push a first pushing head to move in the period, and the first pushing head moves to drive a moving plate to move so that a gas hole can be opened; therefore, hydrogen ...

Computer vision processing system based on big data

The invention provides a computer vision processing system based on big data, and relates to the technical field of image processing, and the system comprises an obtaining module which is used for obtaining a plurality of first images shot by a monitoring camera; the comparison module is used for performing similarity comparison on the first image and a historical image to obtain the similarity between the first image and the historical image; the target detection module is used for performing target detection on the first image through a target detection algorithm under the condition that the similarity between the first image and the historical image is smaller than a first preset threshold value to obtain a first confidence coefficient; and the judgment module is used for judging whether an abnormal event occurs in a region corresponding to the first image or not according to the first confidence coefficient. According to the invention, the first image with high similarity with the historical ...

Method for controlling Mg content in nickel-based superalloy smelting process

A method for controlling the Mg content in the nickel-based superalloy smelting process comprises the two working procedures of vacuum smelting and electroslag remelting, and the vacuum smelting working procedure comprises the following operation steps that firstly, a vacuum smelting cavity is filled with argon; 2, the temperature of the molten steel is reduced to be 20-30 DEG C higher than a liquidus, then aluminum particles are added into the molten steel, and a layer of thin film is formed on the surface of the molten steel; 3, the nickel-magnesium alloy is put into the molten steel through a secondary feeding bin; and 4, the molten steel is rapidly heated and stirred, and when the temperature of the molten steel reaches the tapping temperature, tapping and pouring are conducted. According to the invention, the volatilization of Mg element when the nickel-magnesium alloy is added is reduced, and the yield of Mg is improved and can be stably controlled at 65-75%.

Reinforced server

The utility model relates to a reinforced server, which comprises a hollow box body, a mainboard, an exhaust fan, an exhaust fan, a hard disk bracket, a hard disk, a power supply module, a PCB (Printed Circuit Board) and a fixed support, a panel at the front end of the box body is provided with a first ventilation opening, and a panel at the rear end of the box body is provided with a second ventilation opening; the exhaust fan is arranged at the front end of the box body, the exhaust fan is arranged at the rear end of the box body, and the mainboard is arranged in the box body; the hard disk bracket is arranged at the front end of the box body, and the hard disk is detachably mounted in the hard disk bracket; the power supply module is arranged in the box body, a fixing support is arranged between the hard disk and the power supply module, a power supply PCB is installed on the fixing support, and the output end of each hard disk PCB and the output end of the power supply module are connected ...

Electrolyte membrane, preparation method thereof and solid-state battery

The invention belongs to the technical field of all-solid-state batteries, and particularly relates to an electrolyte membrane, a preparation method thereof and a solid-state battery. Compared with a traditional method for preparing the binder-free electrolyte layer through die tabletting, the method has the advantages that the size and the shape of the electrolyte membrane are not limited by a die, the electrolyte membrane can be customized completely according to production and customer requirements, and therefore the method has higher flexibility and the basis of large-scale application; meanwhile, it can be ensured that the electrolyte membrane has enough strength in the preparation process and the battery assembly process, and the thickness can be reduced. According to the invention, the conductivity of the electrolyte layer can be obviously improved, the impedance increase caused by the introduction of a non-conductivity binder is reduced, and the capacity development of the battery ...

Free piston Stirling generator

The invention relates to a free piston Stirling generator which comprises a shell, an air distribution piston, a power piston and a supporting rod. An expansion cavity, a compression cavity and a buffering cavity are formed in the shell, the air distribution piston is located on one side of the power piston, and the compression cavity is formed between the end, facing the power piston, of the air distribution piston and the power piston. The supporting rod and the air distribution piston are located on the same side of the power piston, a channel is formed in the air distribution piston, the supporting rod is arranged in the channel in a penetrating mode, a sealing gap is formed between the supporting rod and the inner wall of the channel, and an elastic piece is connected between the supporting rod and the inner wall of the channel so as to support the air distribution piston; the end face area of the end, facing the power piston, of the gas distribution piston is smaller than the end ...

Hydrogen fuel cell stack assembling device

The invention provides a hydrogen fuel cell stack assembling device, and relates to the technical field of cell stacks.The hydrogen fuel cell stack assembling device comprises a base, a cavity is formed in the base, a supporting shaft is arranged in the middle of the cavity, and the outer portion of the supporting shaft is rotationally connected with an assembling table located in the cavity; symmetrically-distributed vertical plates are fixedly connected to the top of the base, sliding grooves communicating with the cavity are formed in the two vertical plates in the height direction of the vertical plates, and sliding blocks fixed to the supporting shaft are slidably connected to the interiors of the two sliding grooves; two sliding blocks slide along sliding grooves in two vertical plates respectively by adjusting a pushing mechanism, the supporting shaft drives the assembling table to ascend, and when the supporting shaft ascends, a sliding rod slides in a transverse groove to limit ...

Method for electroslag remelting chromium-molybdenum hot work die steel

A method for electroslag remelting chromium-molybdenum hot work die steel comprises the steps that electroslag remelting is conducted on an electroslag consumable electrode under the argon protection condition, the content of SiO2 in pre-melted slag is determined according to the content of Si in steel and the content of Al2O3 in the pre-melted slag, and the specific relation is as follows: [SiO2]% = [(a + 0.66) * (0.78 * b1/3 + 1)]%, in the formula, a is larger than or equal to 0.7 and smaller than or equal to 1.3, [Si]% = a%, and [Al2O3]% = b%, [SiO2]% refers to the mass percentage content of SiO2 in the pre-melted slag, [Si]% refers to the mass percentage content of Si in the consumable electrode, and b refers to the mass percentage content of Si in the consumable electrode. And [Al2O3]% is the mass percentage content of Al2O3 in the pre-melting slag. According to the method, the burning loss of the Si element of the electroslag ingot is remarkably reduced, and the yield is stabilized ...

Diesel engine shaft hole machine tool boring rod guide device and maintenance method

The invention provides a diesel engine shaft hole machine tool boring rod guide device and a maintenance method, and relates to the technical field of diesel engines, the guide device comprises a boring frame and a base, the boring frame is detachably arranged on the base, a boring rod penetrating hole for a boring rod to penetrate through is formed in the boring frame, and the guide device further comprises an adjusting assembly. The adjusting assembly achieves the purpose of adjusting the position of the boring frame by changing the thickness, so that the purpose of adjusting the perforating position of the boring rod is further achieved, the adjusting method is simple, convenient and reliable, the operation process is simple, ordinary workers can carry out daily maintenance of a machine tool, and the cam shaft hole boring rod guide device can be rapidly adjusted. The maintenance difficulty and cost of a diesel engine shaft hole machine tool are greatly reduced. The maintenance method ...