32results about How to "Reduce the number of sheets" patented technology

The invention relates to a dynamic human face recognition attendance checking management system and a management method thereof. The system comprises a plurality of attendance checking terminals, a management terminal and a cloud terminal, wherein each attendance checking terminal comprises an automatic switch control unit, a display screen, an infrared sensing unit, near-infrared image acquisition equipment which is used for carrying out synchronous real-time dynamic focusing on different human faces in an acquisition area screen and used for acquiring panorama attendance checking images, a processor which is used for carrying out three-dimensional conversion on a two-dimensional image of each human face according to the panorama attendance checking images, used for matching two-dimensional images and three-dimensional images with pre-stored image data, and used for uploading matching results and sole codes of the attendance checking terminals to the cloud terminal, and a management terminal which is used for checking attendance checking records of each attendance checking terminal through the cloud terminal. By adopting the management system is energy-saving, a plurality of humanfaces can be processed synchronously, the attendance checking efficiency can be improved, the problem of attendance checking jamming can be avoided, in addition, image acquisition can be carried outunder weak light or dark conditions, and meanwhile, the image recognition precision and the recognition efficiency can be improved.

The invention relates to a composite brightness enhancement film used by a backlight source in a liquid crystal display, and particularly relates to a composite brightness enhancement film. The invention provides a composite brightness enhancement film and a preparation method thereof in order to solve defects that a small-size display is insufficient in brightness and relatively thick as a whole and that lamp shadow occurs easily. The composite brightness enhancement film sequentially comprises a brightness enhancement structural layer, a first polyurethane layer, a PET layer, a second polyurethane layer and a particle layer, wherein the first polyurethane layer and the second polyurethane layer are collectively referred as a polyurethane layer. The composite brightness enhancement film has high light transmittance, shielding performance and brightness performance, and can effectively solve the defect that the display is serious in energy consumption and insufficient in brightness and has lamp shadow after being applied to a backlight module. In addition, the reverse side of the brightness enhancement film is enabled to have a good adhesion preventing effect, and the thickness of the backlight module is effectively reduced.

The invention discloses an OLED device manufacturing method. The method includes the steps that a hole injection layer and a hole transmission layer are manufactured on an OLED anode through an OPEN MASK in an evaporation mode; a B primary-color organic light-emitting layer is manufactured on the hole transmission layer through the OPEN MASK in an evaporation mode, and the B primary-color organic light-emitting layer is doped with a hole transmission layer material; a G primary-color organic light-emitting layer is manufactured on part of areas of the B primary-color organic light-emitting layer through a FINE MASK in an evaporation mode, and the G primary-color organic light-emitting layer is doped with an electronic blocking EBL material; an R primary-color organic light-emitting layer is manufactured on part of areas of the B primary-color organic light-emitting layer through a FINE MASK in an evaporation mode, the R primary-color organic light-emitting layer is doped with an electronic blocking EBL material, and the R primary-color organic light-emitting layer is thicker than the G primary-color organic light-emitting layer. According to a conventional technology, an electron transfer layer, an electron injection layer, a cathode and a packaging layer are arranged on the B primary-color organic light-emitting layer, the G primary-color organic light-emitting layer and the R primary-color organic light-emitting layer in an evaporation mode. Due to the application of the technical scheme, when the cavity length of three primary colors is adjusted, it is avoided that a plurality of FINE MASKs are used, the yield of OLED devices is increased, and cost is reduced.

A method for producing a disposable wearable article is equipped with: a hole-opening step for forming an opening (notch) in an exterior, continuous non-woven fabric, while conveying the exterior, continuous non-woven fabric for serving as an exterior non-woven fabric in the lengthwise direction thereof; a first attachment step for attaching a continuous resin sheet for serving as a resin sheet to the skin-surface of the exterior, continuous non-woven fabric after the hole-opening step, and blocking the opening with the continuous resin sheet; a step for positioning an absorbent core on the skin-surface of the continuous resin sheet, and obtaining a continuous layered body for serving as an absorbent body; a step for cutting the continuous layered body along an imaginary cutting line extending in the widthwise direction perpendicular to the lengthwise direction, in order to obtain absorbent bodies for a plurality of absorbent articles from the continuous layered body; and a second attachment step for overlapping and attaching one or more continuous-non-woven-fabric layered bodies for serving as a waist-surrounding member to the non-skin-surface of the exterior non-woven fabric, so as to cover the notch.

The invention discloses a 9Ni steel plate for an inner tank wall of a large liquefied natural gas storage tank, a manufacturing method for the 9Ni steel plate and a tank wall structure. The steel plate for the inner tank wall is thick in one end and is thin in the other end in a length direction, the plate thickness of the steel plate is linearly increased or reduced within all or part of a length section, and the plate width and the plate length of the steel plate are constant; the thickness of the steel plate is gradually changed in the length direction, and a gradual-changing gradient is constant in overall length or is constant in sections; a ratio of the plate thickness Tb of the thickest end to the plate thickness Ta of the thinnest end is not greater than 2; L1, L2, and so on are different distances from the thin end part of the steel plate, and the thicknesses of the steel plate are respectively T1, T2, and so on at the corresponding distances; within the length section range of 0-L1, L1-L2, and so on, the inner plate thickness is linearly increased or reduced, and the thickness increase or reduction gradient within the length section is constant. On the premise of not affecting the capacity and the safety of the storage tank, the usage amount of the steel plate for the tank wall of the inner tank is remarkably reduced, the prefabricating processing process of the wall plate is reduced, the welding construction efficiency of the tank wall of the inner tank is improved; and moreover, the matched tank wall steel plate has the characteristics of being great in wide breadth, and trapezoidal and gradually varied in thickness.

This heat exchanger (1) is provided with: a plurality of fins (12) stacked at a predetermined fin pitch; and a plurality of flat-cross-sectioned heat transmission tubes (10) that penetrate the fins (12) along the direction of stacking. In the fins (12), a plurality of notches (13) are formed at the ends in the lengthwise direction thereof and having a shape corresponding to the cross-sectional shape of the heat transmission tubes (10); a collar (14) is formed at the edge of the notches (13); the heat transmission tubes (10) are inserted into the notches (13); the fin pitch between a subset of the plurality of fins (12) is larger than the fin pitch between the remaining fins (12); and at least the larger fin pitch is greater than the height of the collars (14).

The invention discloses an electrostatic controllable abrasive grain flow machining removal amount detection device and detection method. The electrostatic controllable abrasive grain flow machining removal amount detection device comprises a grinding grain flow machining device, a faraday cylinder method system and a microscopic visualization system, wherein the grinding grain flow machining system comprises a high-voltage electrostatic generator, a mold distribution adsorption platform, an additional electric field, an abrasive grain flow and a workpiece, the workpiece is fixed through the mold distribution adsorption platform, the abrasive grain flow is transmitted to the surface of the workpiece after passing through the high-voltage electrostatic generator and then is subjected to abrasive grain flow machining, and the additional electric field is directly loaded on the whole mold distribution adsorption platform and the workpiece. The invention provides an electrostatic controllable abrasive grain flow machining method empirical prediction model equation suitable for a charge tip aggregation effect, the correlation between the charged charge measurement of the abrasive grainsis solved through the faraday cylinder system design, and a theoretical basis for selecting the cutting acting force of the appropriate abrasive grains and the workpiece is provided.

The invention provides a sample image generation method, a sample image generation device, a circuit board defect detection method and a circuit board defect detection device. The sample image generation method comprises the steps: obtaining an original circuit board sample image set as a sample set; respectively determining the distribution proportion of the circuit board sample images in each circuit board sample image category in the sample set; for each circuit board sample image category of which the distribution ratio is smaller than a first ratio threshold, performing oversampling processing on the circuit board sample images in the circuit board sample image category; and / or, for each circuit board sample image category of which the distribution proportion is greater than a secondproportion threshold, performing undersampling processing on the circuit board sample images in the circuit board sample image category, wherein the first proportion threshold is smaller than the second proportion threshold. By the adoption of the scheme, multiple types of sample images can be balanced. The circuit board defect detection model obtained through training can learn more balanced image features. Therefore, the accuracy of circuit board defect detection is improved.

The present invention equalizes the temperatures of semiconductor elements and efficiently cools the semiconductor elements in a lightweight device configuration, by optimally combining the configurations of heat radiation fins in accordance with the configuration of the semiconductor elements. A traction converter includes plural semiconductor elements included in a traction converting circuit and a cooler to radiate heat from the plural semiconductor elements to outside air, the cooler including a heat receiving block, plural heat pipes and plural heat radiation fins, the plural semiconductor elements being arrayed on one surface of the heat receiving block, heat receiving parts of the plural heat pipes being buried in the opposite surface of the heat receiving block, heat radiation parts of the plural heat pipes being erectly provided so as to protrude from the heat receiving block, the plural heat radiation fins being joined to the heat radiation parts. In the cooler, three semiconductor elements are provided in a cooling wind flow direction, and, when a region at which the plural heat radiation fins are provided is divided in the cooling wind flow direction into three of an up-wind region, a mid-wind region and a down-wind region, a heat radiation fin surface area at the up-wind region is in a range of 0.33 to 0.42 times of a heat radiation fin surface area at the down-wind region, and a heat radiation fin surface area at the mid-wind region is in a range of 0.42 to 0.63 times of the heat radiation fin surface area at the down-wind region.

The invention relates to a TMCP high strength steel plate for a large storage tank wall and a production method of the steel plate as well as a tank wall structure. In the length direction, one end of the steel plate is thick and the other end is thin, and the plate thickness is linearly increasing or decreasingin the overall or partial length section; the width and length of the steel plate are constant, the thickness of the steel plate changes along with the change in the length direction, and the ratio of the plate thickness Tb at the thickest end to the plate thickness Ta at the thinnest end is not greater than 3; L1, L2... are respectively different distances away from the thin end part of the steel plate, and in the distances, the thicknesses of the steel plate are respectively T1, T2..., the rest can be deduced by analogy; and the plate thickness in the length interval scopes of 0-L1, L1-L2... islinearly increasing or decreasing, and the slope of increase or decrease of the thickness in the length interval is constant. According to the invention, on the premise of not affecting the capacity and safety of the storage tank, material use amount of the steel plate for the tank wall can be remarkably reduced, the prefabricating machining procedure of the wall plate can be reduced, and the welding construction efficiency of the tank wall can be improved; and the steel plate for the tank wall has the characteristics of being large in width and having thickness in trapezoid gradual change, thus being applicable to large storage tanks with a capacity of 100-150 thousand cubic meters.

Provided are: a circuit board that can increase the operational stability of a mounted circuit; and an electronic device that uses the circuit board. The circuit board (1a) is provided with: a metal substrate (2); an insulating layer (3) provided to one surface of the metal substrate (2); and a conductor layer (4) provided on the insulating layer (3). The conductor layer (4) is provided with a wiring pattern having: switching arm series circuit terminal groups (41U, 41V, 41W) configured from a plurality of switching element terminals for connecting switching elements; and drive circuit terminal groups (42U, 42V, 42W) configured from a plurality of drive circuit terminals for connecting drive circuits that impose a driving voltage on the switching elements. The switching arm series circuit terminal groups (41U, 41V, 41W) and the drive circuit terminal groups (42U, 42V, 42W) are formed on the same surface.

The invention provides a semiconductor device and a manufacturing method thereof. In a conventional semiconductor device, because the horizontal diffuse width of a P type embedding diffuse layer which constitutes a separating region become wider, desired anti-pressing characteristic is difficult to be obtained. In a semiconductor device of the present invention, two epitaxial layers are formed on a P type single crystal silicon substrate. One of the epitaxial layers has an impurity concentration higher than that of the other epitaxial layer. The epitaxial layers are divided into a plurality of element formation regions by isolation regions. In one of the element formation regions, an NPN transistor is formed. Moreover, between a P type diffusion layer, which is used as a base region of the NPN transistor, and a P type isolation region, an N type diffusion layer is formed. Use of this structure makes it hard for a short-circuit to occur between the base region and the isolation region. Thus, the breakdown voltage characteristics of the NPN transistor can be improved.

Provided is: a vacuum pump that can effectively prevent backflow of particles from the vacuum pump to a vacuum chamber, without the gas molecule exhaust performance of the vacuum pump being impaired,and that is ideal for preventing contamination of the inside of the vacuum chamber by backflow particles; a blade component and a rotor for use in the vacuum pump; and a fixed blade. A vacuum pump has, between an intake port and an exhaust port, a plurality of exhaust stages PT that function as means for expelling gas molecules. Between the intake port and an uppermost exhaust stage PT (PT1) of the plurality of exhaust stages PT, the vacuum pump has, as particle transport means that transport particles in the direction in which the gas molecules are expelled, blades NB that: rotate with rotaryblades 7 (71, 75) that constitute the uppermost exhaust stage PT1; and number fewer than the rotary blades 7 that constitute the uppermost exhaust stage PT1.

The invention discloses a manufacture method for a heat exchanger and a manufacture method for an air conditioner. The heat exchanger (1) comprises multiple fins (12) which are stacked at specified fin intervals and multiple heat conduction pipes (10) of which cross sections are flat; the heat conduction pipes (10) penetrate through the fins (12) along the stacking direction; multiple notches (13) which correspond to the cross sections of the heat conduction pipes (10) in shape are formed in the end parts of the length direction sides of the fins (12); a flange (14) is arranged on the edge of each notch (13); the heat conduction pipes (10) are inserted into the notches (13); fin intervals among a part of the multiple fins (12) are larger than fin intervals among the other fins (12); and the larger fin intervals at least are larger than the heights of the flanges (14).

The invention provides a vacuum pump, a blade part and a rotor used in the vacuum pump, and a fixed blade, which can effectively prevent the backflow of particles from the vacuum pump to the vacuum chamber without damaging the gas molecule discharge performance of the vacuum pump, and are suitable for preventing Contamination in the vacuum chamber due to backflow of particles. The vacuum pump has multiple exhaust layers (PT) that function as a mechanism for discharging gas molecules from the suction port to the exhaust port, and the uppermost exhaust layer among the multiple exhaust layers (PT) Between (PT (PT1)) and the suction port, as a particle transfer layer that transfers particles along the exhaust direction of gas molecules, it is equipped with rotating blades (7 (71, 75) constituting the uppermost exhaust layer (PT1) ) rotate together and have a smaller number of blades (NB) than the number of rotating blades ( 7 ) constituting the uppermost exhaust layer ( PT1 ).

The high-brightness thinned miniled backlight structure comprises a back plate, a PDLC dimming film is arranged in the back plate, the PDLC dimming film comprises two PET base materials and a refraction layer, the refraction layer is located between the two PET base materials, an ITO conductive circuit is arranged on the side, close to the refraction layer, of each PET base material, and the ITO conductive circuit is arranged on the other side, close to the refraction layer, of each PET base material. The refraction layer comprises a polymer and a liquid crystal, the number of the PDLC light adjusting films is two, and a transparent isolating film is arranged between the two PDLC light adjusting films. According to the high-brightness thinned miniled backlight structure, the PDLC light adjusting films are adopted to replace a plurality of structural diffusion films in backlight, the product thickness can be greatly reduced, the thinned requirement of the product is met, and the high-brightness thinned miniled backlight structure is suitable for large-scale popularization and application. Meanwhile, the number of materials is reduced, backlight assembly is facilitated, LED arrangement pitches can be added in ultrathin products, the number of LEDs is reduced, and the problems that the layout space of a lamp panel is insufficient and the layout space of a PCB is insufficient are solved.

The present application discloses a mask plate and a manufacturing method thereof, including: a substrate and a photoresist layer, the photoresist layer is arranged on the substrate, the side of the photoresist layer in contact with the product is a top wall, and the top wall has At least two bonding surfaces parallel to the substrate have different heights. Adjacent bonding surfaces are connected by a connecting wall perpendicular to the substrate. The top wall is used to record three-dimensional structure information. When it is necessary to produce a product with a multi-layer structure, the three-dimensional structure information contained in the photoresist layer can be transferred to the raw material of the product by means of electroplating, injection molding or direct embossing to complete the production of the product without using multiple masks. The template alignment overlay production avoids the deviation in the alignment overlay production, improves the precision of product production, reduces the reject rate, and reduces the number of exposures, thereby saving the process, reducing the number of sheets of the mask used, and saving costs.