Electronic equipment and method for identifying whether face in image wears mask

The invention discloses electronic equipment and a method for recognizing whether a face in an image wears a mask, and the method comprises the steps: carrying out the feature extraction of a to-be-processed image through a backbone network comprising at least two feature extraction layers, recognizing whether the face in the to-be-processed image wears the mask or not based on N initial feature maps obtained through extraction, and outputting a recognition result, each feature extraction layer can perform feature extraction on a first global feature entering from a first entrance of the feature extraction layer to obtain a second global feature, perform feature extraction on a first local feature entering from a second entrance of the feature extraction layer to obtain a second local feature, and perform fusion processing on the second local feature based on the second global feature to obtain a fusion result; and determining a third global feature output from a first outlet of the second ...

Method and device for preparing prochloraz by adopting micro-flow field reaction technology

The invention discloses a method and a device for preparing prochloraz by adopting a micro-flow field reaction technology, and the preparation method comprises the following steps: dissolving 2, 4, 6-trichlorophenol by using liquid caustic soda, respectively pumping the dissolved 2, 4, 6-trichlorophenol and excessive 1, 2-dichloroethane into a micro-flow field reactor for reaction to obtain 2, 4, 6-trichlorophenoxyethyl chloride, and adding 1, 2-dichloroethane into the micro-flow field reactor for reaction to obtain 2, 4, 6-trichlorophenoxyethyl chloride; the preparation method comprises the following steps: carrying out liquid separation, distillation and refining on 2, 4, 6-trichlorophenoxyethyl chloride and n-propylamine in a micro-channel reactor to obtain N-(2, 4, 6-trichlorophenoxyethyl) propylamine, carrying out reaction on the N-(2, 4, 6-trichlorophenoxyethyl) propylamine and triphosgene in the presence of triethylamine in a micro-flow field dynamic reactor to generate acyl chloride ...

Perovskite type ceramic oxygen permeable membrane for partial oxidation reaction of methane

The invention provides a perovskite type ceramic oxygen permeable membrane material used for the partial oxidation reaction of methane, which relates to an inorganic oxygen permeable membrane material and is characterized in that: a B site of BaCoO3 is doped with a certain amount of Fe elements and Y elements with strong stability for improving the structural stability, so the oxygen permeable membrane material of a BaCoO3 matrix also has the excellent structural stability while keeping rather high oxygen permeation flux, the molecular formula is: BaCo<0.7>Fe<0.3-x>YO<3-delta>, where x is between 0.06 and 0.30. The oxygen permeable membrane material produced by the invention is the oxygen permeable membrane material with compact structure, high oxygen permeation flux, good stability and outstanding performance, and can be applied to the continuous oxygen supply of the partial oxidation reaction of methane, as well as the industrial process of oxygen separation and purification in other ...

A site absent perovskite type ceramic oxygen permeation membrane material

A perovskite ceramic oxygen permeable membrane material with A-site vacancy relates to an inorganic oxygen permeable film material. The invention is characterized in that a Ba vacancy is introduced into the A site of the oxygen permeable film material with a perovskite structure of BaCo0.7Fe0.3-xNbxO3-Delta and the formula is: BaxCo0.7Fe0.3-yNbyO3-Delta, in which x is 0.90-1.0 and y is 0.05-0.3. The A-deficient oxygen permeable film of the invention, which is provided with dense structure, high oxygen permeability and good stability, is an oxygen permeable film material with excellent performance and can be used for continuous oxygen supply in methane partial oxidation and in other industrial processes for oxygen separation and purification of other oxygen-contained gases.

Cathode material for middle and low-temperature solid oxide fuel battery

The present invention provides a La doped low-to-intermediate temperature solid state oxide fuel cell, which molecular formula is (Ba0.6Sr0.4)1-xLaxCo0.85Ti0.15O3-theta, 0.05 Подробнее

Perovskite type ceramic oxygen-permeable membrane material with large grain character

The present invention relates to In-substitution-on-B-site calcium-titanium ceramic oxygen-transmitting film material with the property of large crystal grain, and relates to inorganic oxygen-transmitting film material. The present invention is characterized in that the B site of BaCo0.7Fe0.3O3-Delta is doped with In element; and the chemical formula of the material is BaCo0.7Fe0.3-xInxO3-Delta, wherein, x is equal to 0.05 to 0.30. The structure of the oxygen-transmitting film material with B site being doped with In element is compact, the oxygen transmittance is high and the stability is good; therefore, the In-substitution-on-B-site calcium-titanium ceramic oxygen-transmitting film material of the present invention is the oxygen-transmitting film material with excellent performance, which can be applied to the consecutive oxygen supply in partial oxidation reaction of the methane, and can be applied to the industrial process such as the oxygen separation and purification in other gases ...

A site absent perovskite type ceramic oxygen permeation membrane material

A perovskite ceramic oxygen permeable membrane material with A-site vacancy relates to an inorganic oxygen permeable film material. The invention is characterized in that a Ba vacancy is introduced into the A site of the oxygen permeable film material with a perovskite structure of BaCo0.7Fe0.3-xNbxO3-Delta and the formula is: BaxCo0.7Fe0.3-yNbyO3-Delta, in which x is 0.90-1.0 and y is 0.05-0.3. The A-deficient oxygen permeable film of the invention, which is provided with dense structure, high oxygen permeability and good stability, is an oxygen permeable film material with excellent performance and can be used for continuous oxygen supply in methane partial oxidation and in other industrial processes for oxygen separation and purification of other oxygen-contained gases.

Sand-blasting-free diffusion nickel plating technology of rectification monocrystalline silicon wafer

Provided in the invention is a sand-blasting-free diffusion nickel plating technology of a rectification monocrystalline silicon wafer. According to the invention, the oxidation technology, the electrolysis technology, and the ultra sand coarsening technology technology are used for replacing the traditional sand blasting technology. The provided technology has advantages of energy conservation and power consumption reduction, good noise-free and dust-free properties, low production cost, and high product quality and the like and thus is the preferred one for technical transformation of the ectification monocrystalline silicon wafer diffusion nickel plating enterprise.

Process for pretreating coal gas and purifying carbon monoxide

The invention provides a process for pretreating coal gas and purifying carbon monoxide, which comprises the following steps: pretreating the coal gas to obtain purified coal gas, deoxidizing the purified coal gas, and carrying out VPSA (Vacuum Pressure Swing Adsorption) CO2 removal treatment and VPSA CO purification treatment on the obtained deoxidized gas to finally obtain CO product gas. According to the pretreatment process provided by the invention, organic sulfur and inorganic sulfur components in the coal gas can be effectively removed, the total sulfur removal rate is more than or equal to 80%, the purity of the purified CO product gas is more than 98.5%, and the CO product gas can be used as a raw material of an organic chemical product and is wide in application, so that the economic benefit of the coal gas with low additional value is greatly improved; energy conservation, emission reduction and recycling are achieved, and huge economic benefits and social benefits are achieved ...

Sloped rotary type tire mould pattern block finishing device

The invention relates to a clamping tool, in particular to an oblique rotary tire module pattern block dressing device. The invention provides an adjustable tool which is simple in structure, convenient in use and capable of modifying any part of a tire mould pattern block. The tool comprises a workpiece holding case (1), a base (4), a tilting mechanism and a rotating mechanism, wherein the tilting mechanism and the rotating mechanism are arranged between the workpiece holding case (1) and the base (4). The workpiece holding case (1) comprises a side plate (2) which is provided with a fastening bolt (3). The tilting mechanism is provided with a shaft (5) and the bottom of the tilting mechanism is provided with a circular arc-shaped groove (6). The lower part of the tilting mechanism is provided with the rotary mechanism which is provided with a rotary locking bolt (7). With the structure, the tool can adjust the position and angle of the tire mould pattern block freely and fix the tire ...

Structural device for realizing supervision place abnormal behavior detection function

The utility model relates to a structure device supporting realization of a supervision place abnormal behavior detection function. The structure device comprises a binocular stereo vision informationacquisition device, a position information acquisition device, an action characteristic acquisition device, a communication module and a server device. Wherein the binocular stereo vision informationacquisition device and the motion characteristic acquisition device are connected with the position information acquisition device, and the server device is connected with the binocular stereo videoinformation acquisition device and the position information acquisition device through the communication module. The structure device for supporting the realization of the abnormal behavior detectionfunction of the supervision place is adopted; the video information, the position information and the action information are integrated; through cooperation with the server module, sensor informationof different ...

High-performance flat valve

The utility model belongs to the technical field of flat valves. The utility model relates to a valve, in particular to a high-performance flat valve. The valve comprises a valve body, a valve cover,a valve plate, a valve rod and a motor, the valve cover is fixedly mounted at the top of the valve body; a groove is formed in the middle of the valve body and provided with the valve plate. The top of the valve plate is connected with the valve rod through a connecting block; the valve rod is connected with the motor through a through hole formed in the middle of the valve cover; a sealing ring Iis arranged at the joint of the valve cover and the valve body; a groove is formed in the bottom of the center of the valve deck and fixedly provided with an annular plug. The device is scientific and reasonable in structural design; the sawtooth groove formed in the upper portion of the valve rod is used in cooperation with the motor and the gear and has the vertical moving effect on the valve rod, ...

Method and device for generating and processing gait recognition confrontation attack sample, processor and computer readable storage medium thereof

The invention relates to a method for generating and processing gait recognition confrontation attack samples. The method comprises the following steps: constructing a real gait image sequence; constructing a generative adversarial network; inputting the generated confrontation image and the original real gait image into an image sequence fusion module; constructing a gait adversarial attack sample generation network; training the network by using the real gait image sequence training set and the feedback result of the target gait recognition model; and generating a corresponding gait recognition confrontation attack sample. The invention also relates to a device for realizing gait recognition countermeasure attack sample generation, a processor and a storage medium thereof. By adopting the method and the device for generating and processing the gait recognition confrontation attack sample, the processor and the computer readable storage medium thereof, a relatively high attack success ...

Methyl alcohol synthetic LNG device of methanation of speeding to exit

The utility model discloses a methyl alcohol synthetic LNG device of methanation of speeding to exit, including helical -lobe compressor, split -compressor and methanator, helical -lobe compressor connects split -compressor, has connected gradually heat exchanger and deoxidation reactor between split -compressor and the methanator, and methanator's export has connected gradually heat exchanger, desalinized water pre -heater, cooler and knockout drum, is connected with multi -stage compressor on the knockout drum. The utility model discloses the device flow is short, and this manufacturing equipment is few, and the investment practices thrift 70%, and the reactor is small in quantity, need not the recycle compressor, also need not waste boiler, needs the parameter of control few, the operation of being convenient for, and also easily the engineering is implemented, and the pressure of system's device is low, and the single unit system energy consumption reduces 15 -20%.

Anti-oxidation paint surface drying device for motor production

The invention discloses an anti-oxidation paint surface drying device for motor production, and relates to the technical field of anti-oxidation paint surface production. The anti-oxidation paint surface drying device for motor production comprises a fixed cylinder, a collecting groove is formed in the top of the fixed cylinder, a rotating mechanism is arranged in the collecting groove, a shifting mechanism is arranged at the upper end of the rotating mechanism, and the rotating mechanism comprises an annular baffle, a motor, a change-over switch and a rotating piece. The annular baffle is fixedly installed at the bottom of the inner wall of the collecting tank, the motor is fixedly installed in the center of the bottom of the inner wall of the collecting tank through the supporting frame, the change-over switch is fixedly installed in the collecting tank, and the rotating piece is arranged at the upper end of an output shaft of the motor. According to the anti-oxidation paint surface drying ...

BaCoO3 based perovskite type ceramic oxygen-permeable membrane material with Sn, Fe doped at B position

The present invention relates to Sn-Fe-substitution-on-B-site BaCoO3-base calcium-titanium mineral ceramic oxygen-transmitting film material, and relates to inorganic oxygen-transmitting film material. The present invention is characterized in that B site of BaCo0.7Fe0.3O3-Delta is doped with Sn element; the chemical formula of the material is BaCo0.7Fe0.3-xSnxO3-Delta, wherein, x is equal to 0.06 to 0.30. The structure of the oxygen-transmitting film material with B site being doped with Sn element is compact; moreover, the crystal interface width is narrow, the crystal interface is clean and free from the foreign matter; the oxygen transmittance is high; the stability is good, thus being the oxygen-transmitting film material with excellent performance, so that the oxygen-transmitting film material can be used for the consecutive oxygen supply for partial oxidation reaction of the methane, and for the oxygen separation and purification in other gases containing the oxygen.

Bandwidth control method, bandwidth control device and packet data network gateway

The invention relates to a bandwidth control method which comprises the steps: the user sends activation request with service quality parameter to a packet data network gateway; after receiving the activation request with the service quality parameter, the packet data network gateway calculates upstream and downstream bandwidth thresholds according to the service quality parameter; the packet data network gateway sends activation response to the user, and the activation response contains initially negotiated service quality parameter; after receiving the activation response of the packet datanetwork gateway, the user sends data message to the packet data network gateway; and after receiving the data message, the packet data network gateway can control the transmission of the data messageaccording to the upstream and the downstream bandwidth thresholds. The invention also provides a bandwidth control device, the packet data network gateway and an evolution packet system. The invention can ...

Multidirectional tire-mold drilling bench

The invention relates to a drill press, in particular to a drilling table of a multidirectional tyre mould. The invention provides the drill press which has a simple structure and convenient use and is convenient to solve the problem of processing a micropore on a curved surface. The drill press comprises a supporting platform (1), an upper bedplate (2) and a supporting rod (3); a transverse movable shaft (4) is arranged on the supporting rod (3); the supporting rod (3) is provided with a lifting screw rod (5) parallel to the supporting rod (3); the outer end of the transverse movable shaft (4) is provided with a slope angle connecting plate (6); and the top end of the slope angle connecting plate (6) is provided with a universal drilling mechanism (5). The universal drilling mechanism (5) comprises a drill bush seat (16), a pneumatic drill (15), a drill sleeve (13), and an air pipe (14). With the structure, as the transverse movable shaft can move up and down and right and left, the upper ...

Perovskite type ceramic oxygen permeable membrane for partial oxidation reaction of methane

The invention provides a perovskite type ceramic oxygen permeable membrane material used for the partial oxidation reaction of methane, which relates to an inorganic oxygen permeable membrane material and is characterized in that: a B site of BaCoO3 is doped with a certain amount of Fe elements and Y elements with strong stability for improving the structural stability, so the oxygen permeable membrane material of a BaCoO3 matrix also has the excellent structural stability while keeping rather high oxygen permeation flux, the molecular formula is: BaCo<0.7>Fe<0.3-x>YO<3-delta>, where x is between 0.06 and 0.30. The oxygen permeable membrane material produced by the invention is the oxygen permeable membrane material with compact structure, high oxygen permeation flux, good stability and outstanding performance, and can be applied to the continuous oxygen supply of the partial oxidation reaction of methane, as well as the industrial process of oxygen separation and purification in other ...

Method, system and device for remotely and regularly updating client application

The invention provides a method, a system and a device for remotely and regularly updating a client application, and relates to the technical field of system updating, and the method comprises the following steps: a background server obtains a client application updating file and uploads the client application updating file to an FTP (File Transfer Protocol) server; the background server receives to-be-updated vending cabinet terminal information fed back by the dbsql database; the background server judges whether the vending cabinet terminal to be updated exists or not, and if yes, an updating message is pushed to an MQTT server; the background server establishes data connection with the FTP server, the dbsq l database, the MQTT server and the vending cabinet terminal through a monitoring program; and the to-be-updated vending cabinet terminal receives the update message pushed by the MQTT server, performs system update and then uploads update state information to the MQTT server. According ...

Traffic volume OD data acquisition method, device, equipment and medium

The invention discloses a traffic volume OD data acquisition method and device, equipment and a medium, which are used for quickly and accurately counting OD data. The first video frame acquired by the image acquisition device configured at the get-off position of the public transport vehicle can be acquired, and the second video frame acquired by the image acquisition device configured at the platform can be acquired; determining a first feature vector of a person in the first video frame; determining a second feature vector of the personnel in the second video frame; determining a target second feature vector matched with the first feature vector; fusing the first feature vector with the target second feature vector to generate a get-off feature vector; matching the getting-off feature vector with the determined getting-on feature vector of the person getting on the bus at the departure station, and determining a target getting-on feature vector matched with the getting-off feature vector ...

Worktable for measuring tire mold roundness and curvature

The invention relates to a tool for checking tire molds, in particular to a workbench measuring circular degree and curvature of tire molds. The invention provides a device with simple structure and convenient use, which can completely cover the components needing check so as to obtain equipments with data being absolute values. The tool comprises a stand (13) that is provide with a rotary table (31) at one side and a stand widening angle iron (1) at the other side; the stand widening angle iron (1) is provided with a support pillar that is provided with an infrared circularity survey meter (32); the rotary table (31) is provided with a circularity correcting mechanism and a plane correcting mechanism; the rotary table (31) is further provided with a main shaft (27); and the rotary table (31) is movably connected with the stand (13) via the main shaft (27). After the structure is used, tire molds can be rotated to proper positions, and plane correction and circularity correction are carried ...

Satellite antenna omnibearing slewing mechanism

The utility model relates to the technical field of satellite antennas, and specifically discloses an omni-directional slewing mechanism of a satellite antenna. The device comprises a stand column assembly, a stand column shaft, an omni-directional rotary table, an inner gear ring, a reduction gearbox and a driving motor; the stand column shaft is coaxially arranged on the stand column assembly. The omnibearing rotary table comprises an upper end face, a barrel, an upper bearing seat, a lower bearing seat, a first tapered roller bearing and a second tapered roller bearing. An inner gear ring is arranged in the cylinder body; a reduction gearbox is installed on the stand column shaft through a bolt assembly. The input end of the reduction gearbox is connected with the driving motor, the gearbox is of a semi-open structure, and a first gear at the output end of the gearbox is meshed with the inner gear ring. According to the utility model, the coaxiality and the stability of the omni-directional ...

Perovskite type ceramic oxygen-permeable membrane material with large grain character

The present invention relates to In-substitution-on-B-site calcium-titanium ceramic oxygen-transmitting film material with the property of large crystal grain, and relates to inorganic oxygen-transmitting film material. The present invention is characterized in that the B site of BaCo0.7Fe0.3O3-Delta is doped with In element; and the chemical formula of the material is BaCo0.7Fe0.3-xInxO3-Delta, wherein, x is equal to 0.05 to 0.30. The structure of the oxygen-transmitting film material with B site being doped with In element is compact, the oxygen transmittance is high and the stability is good; therefore, the In-substitution-on-B-site calcium-titanium ceramic oxygen-transmitting film material of the present invention is the oxygen-transmitting film material with excellent performance, which can be applied to the consecutive oxygen supply in partial oxidation reaction of the methane, and can be applied to the industrial process such as the oxygen separation and purification in other gases ...

Cathode material for middle and low-temperature solid oxide fuel battery

BaCoO3 based perovskite type ceramic oxygen-permeable membrane material with Sn, Fe doped at B position

The present invention relates to Sn-Fe-substitution-on-B-site BaCoO3-base calcium-titanium mineral ceramic oxygen-transmitting film material, and relates to inorganic oxygen-transmitting film material. The present invention is characterized in that B site of BaCo0.7Fe0.3O3-Delta is doped with Sn element; the chemical formula of the material is BaCo0.7Fe0.3-xSnxO3-Delta, wherein, x is equal to 0.06 to 0.30. The structure of the oxygen-transmitting film material with B site being doped with Sn element is compact; moreover, the crystal interface width is narrow, the crystal interface is clean and free from the foreign matter; the oxygen transmittance is high; the stability is good, thus being the oxygen-transmitting film material with excellent performance, so that the oxygen-transmitting film material can be used for the consecutive oxygen supply for partial oxidation reaction of the methane, and for the oxygen separation and purification in other gases containing the oxygen.