18results about How to "Small surface area" patented technology

The utility model discloses a breathing machine humidifying tank and a breathing machine system, and relates to the field of medical instruments. The breathing machine humidifying tank comprises a tank body, a guide sleeve, a telescopic water bag and an operating rod. The tank main body is provided with a highest water line; the telescopic water bag is located in the tank body and horizontally arranged, the top of the telescopic water bag is higher than the highest water line, the telescopic water bag comprises a telescopic sleeve and a hard end plate, one end of the telescopic sleeve is connected with the tank body, the hard end plate is connected with the other end of the telescopic sleeve, and a water suction and drainage hole is formed in the hard end plate and lower than the highest water line. The guide sleeve and the telescopic water bag are arranged in the same direction, and the guide sleeve is connected with the tank body and corresponds to the telescopic water bag in position. And the operating rod penetrates through the guide sleeve, is matched with the guide sleeve and is sealed with the guide sleeve, and the operating rod is connected with the hard end plate. The breathing machine humidifying tank is installed on the breathing machine main machine, and a temperature and humidity sensor and a push-pull structure are arranged in a matched mode to obtain the breathing machine system. According to the utility model, the temperature and humidity of the humidified air at the patient end can be optimal.

The present disclosure relates to a continuous positive airway pressure, CPAP, system comprising: a flow generator including a blower that supplies breathable gas at pressure; a patient interface; and an air delivery conduit interconnecting the flow generator and the patient interface, the air delivery conduit including a conduit portion having an internal diameter of less than 19 mm.

The invention discloses a method for treating the inner surface of a stainless steel gas pipe assembly for a semiconductor. The method for treating the inner surface of the stainless steel gas pipe assembly for the semiconductor comprises the following steps that firstly, the inner surface of the stainless steel gas pipe assembly is subjected to basic pretreatment, so that the surface roughness of the stainless steel gas pipe assembly reaches the precision capable of being subjected to finish machining; secondly, multi-stage mechanical polishing is carried out through grinding materials with the granularity gradually reduced, so that the roughness of the inner surface of the stainless steel gas pipe assembly reaches the target precision; and thirdly, the inner surface of the stainless steel gas pipe assembly is treated through electrolytic polishing, and a high-precision passive film is generated on the inner surface of the stainless steel gas pipe assembly. In this way, the smoothness and corrosion resistance of the inner surface of the stainless steel gas pipe assembly can be effectively improved, the overall service life of the pipeline is prolonged, the influence of the pipeline on high-purity gas is remarkably reduced, and the strict requirement of the semiconductor tip technology manufacturing procedure for gas purity is met.

The present invention relates to a positive electrode active material for a secondary battery which is a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes the nickel (Ni) in an amount of 65 mol% or more and the manganese (Mn) in an amount of 5 mol% or more based on a total amount of transition metals, and at least one particle growth-promoting element selected from the group consisting of strontium (Sr), zirconium (Zr), magnesium (Mg), yttrium (Y), and aluminum (Al), wherein the electrode positive active material is composed of a single particle.

The application belongs to the chip packaging technical field, and particularly relates to a running control method based on a heterogeneous optoelectronic chip, steps of which are as follows: S101, obtaining a task quantity of a to-be-calculated task; and judging whether the task quantity is greater than a set first calculation threshold; when the judgment result of step S101 is yes, then step S102 is executed, that is, a type one photonic chip is recommended for the to-be-calculated task to execute calculation; when the judgment result of step S101 is no, then step S103 is executed, that is, a recommended calculation time consumption of the to-be-calculated task is obtained, and whether the recommended calculation time consumption of the to-be-calculated task is less than a set time length is judged; when the judgment result of step S103 is yes, then step S104 is executed, that is, a type two photonic chip is recommended for the to-be-calculated task to execute calculation; when the judgment result of step S103 is no, then step S102 is executed. The control method can realize flexible switching and stable high-speed running of the optoelectronic chip in an extreme environment.

The utility model discloses a kind of anti-falling board auxiliary jig structures for small size PCB production, it is related to auxiliary jig technical field, and it includes: substrate bearing plate, multiple support platforms and multiple drainage open area are equipped on the substrate bearing plate, the end of the support platform is provided with clamping point, the lower side notch of the drainage open area extends to the bottom surface of substrate bearing plate, the upper side four corners of the substrate bearing plate are all installed with support seat, adjusting screw is screwed through in the support seat, the inner end of the adjusting screw is rotatably connected with clamping piece, gauze is laid on the substrate bearing plate, and the four corners of the gauze are connected with four clamping pieces respectively. The utility model is cooperatively designed by gauze and drainage open area, and gauze tension offsets water flow impact force, prevents PCB board displacement, and drainage open area accelerates liquid discharge, compared with traditional single anti-falling board structure, reduces the downtime of cleaning process.

This invention discloses a multi-axis planar motion platform suitable for vacuum environments, comprising: a vacuum chamber, a mounting top plate, an adjusting column, a motion stage, a support platform, a drive assembly, a secondary guide rail, a primary guide rail, and a primary slider. The vacuum chamber is a sealed cavity, with the mounting top plate positioned at the top inner side of the vacuum chamber. The support platform is a hollow square structure connected to the mounting top plate via the adjusting column. The motion stage and secondary guide rail are both located inside the support platform, while the drive assembly is located outside the support platform. The output end of the drive assembly is connected to the secondary guide rail, which extends horizontally through the inner side of the motion stage. Both ends of the secondary guide rail are connected to the primary slider, which slides on the primary guide rail. The primary guide rail is located at the edge of the support platform. Driven by the drive assembly, the secondary guide rail, primary slider, and primary guide rail cooperate to achieve relative sliding of the motion stage within the support platform along the X-axis or Y-axis. This invention has the advantages of compact structure, simple operation, and high motion accuracy.

The application relates to a power supply circuit, a driving device and a power conversion device. The power supply circuit comprises a first step-down conversion circuit, a secondary winding and a first bootstrap circuit; wherein the input end of the first step-down conversion circuit is used for connecting a direct-current power supply, the direct-current output end of the first step-down conversion circuit is connected with the input end of the first bootstrap circuit; the first bootstrap circuit is used for supplying power to the driving circuit corresponding to the floating ground switch tube in the first bridge arm circuit; the direct-current output end of the first step-down conversion circuit is also used for supplying power to the driving circuit corresponding to the ground switch tube in the first bridge arm circuit; the inductive element in the first step-down conversion circuit serves as the primary winding corresponding to the secondary winding, and the secondary winding is used for supplying power to the driving circuit corresponding to each switch tube in the alternating-current side conversion circuit in the power conversion circuit. The power conversion device with a smaller size can be realized by adopting the power supply circuit.

The invention discloses a method for regulating and controlling pathological heart remodeling of an AAC model mouse by succinic acid, and belongs to the field of heart disease treatment. The method comprises the following steps: selecting 8-week-old male C57BL / 6J mice, dividing the mice into a normal temperature group and a slight cold exposure group, and carrying out adaptive feeding; establishing a heart remodeling model through an AAC operation; performing 1.5% succinic acid aqueous solution and / or 1mg / mL broad-spectrum antibiotic intervention on the mouse for 4 weeks; the method comprises the following steps: collecting heart tissues, detecting heart remodeling related indexes through Masson staining, WGA staining, qPCR, Western blot and other methods, and evaluating an intervention effect. According to the invention, succinic acid is used for intervention in a slightly cold exposure environment, so that AAC model mouse pathological heart remodeling is effectively regulated and controlled, and a new method and thought are provided for research and treatment of heart remodeling diseases.

This invention belongs to the field of chip packaging technology and relates to an enhanced non-planar packaging system with heat dissipation function. It includes a substrate, a non-planar reconstruction layer, and at least one photonic chip. The non-planar reconstruction layer is disposed above the substrate and includes: at least one silicon bridge, at least one electronic chip, and molding compound. The silicon bridge is disposed on the side of the electronic chip. The molding compound wraps around the silicon bridge and the electronic chip to form a molding area. A first wiring area is provided between the silicon bridge and the inner surface of the molding area. Multiple first-type heat dissipation parts are spaced apart within the first wiring area to form a heat dissipation area. The first-type heat dissipation parts have a first insulating part near the inner surface of the molding area. A second-type heat dissipation part is disposed on the silicon bridge. The photonic chip is disposed on the outer surface of the heat dissipation area. This system vertically stacks multiple electronic chips through the non-planar reconstruction layer, resulting in a small volume and the ability to lay out various linewidths and spacings of wiring, greatly improving the performance, heat dissipation, and strength of the electronic chips.

This utility model discloses an electrode boiler coupled with a solid thermal storage boiler energy storage system. The water supply pipe is connected to the electrode boiler via valve 5, and the output of the electrode boiler is connected to a first spherical tank via a pipe via valve 6, and then to a second spherical tank via valve 1. The output of the first spherical tank is connected to the user end via a pipe and valve 7, and the output of the second spherical tank is connected to the user end via a pipe and valve 3. The pipes connecting the second spherical tank to the user end pass through the solid thermal storage boiler. The system has high energy storage efficiency, long lifespan, and high safety. The solid thermal storage boiler directly heats the saturated steam stored in the spherical tanks, enabling rapid adaptation to changes in different heating scenarios and demands. It solves the problem that the superheated steam generated by the electrode boiler's superheater cannot be continuously and stably utilized during off-peak hours. The energy storage system can produce both saturated steam and superheated steam.

The invention discloses a hydroxyapatite modified bentonite material as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a hydroxyapatite-bentonite composite material by utilizing a precipitation method, and modifying by utilizing polyaluminum chloride, specifically, dropwise adding a calcium nitrate tetrahydrate aqueous solution into an ammonium dihydrogen phosphate solution by utilizing a peristaltic pump to react, adjusting the pH value by utilizing ammonia water in the dropwise adding process, stirring at constant temperature to react, washing to be neutral by utilizing water and absolute ethyl alcohol, and drying to obtain n-HAP; adding the bentonite solution into the polyaluminum chloride solution, adjusting the pH value with NaOH, uniformly stirring, standing, carrying out suction filtration, washing to be neutral, and drying to obtain Al-B; the preparation method comprises the following steps: uniformly mixing n-HAP and Al-B, dispersing and stirring, adding glutaraldehyde to carry out a cross-linking reaction, adjusting the pH value, stirring at a constant temperature, standing, aging, centrifugally washing and drying to obtain the n-HAP / Al-B composite material which is low in cost, large in adsorption capacity and high in stable regeneration performance, and the n-HAP / Al-B composite material is applied to fluorine ion-containing wastewater, has a remarkable fluorine removal effect and has a good application prospect.

The present disclosure aims at improving gate withstand voltage in a semiconductor device having a two-stage configuration of trench electrodes. The upper electrode (15U) includes an upper base (15U1) and an upper protruding portion (15U2) protruding from the face of the second main face (S2) side, that is, the lower face, toward the second main face side. The upper electrode (15U) is convex toward the second main face (S2) by the upper base and the upper protruding portion. The oxide film (14) has a lower oxide film (141) formed on the side face of the trench (13) in contact with the lower electrode (15D), an upper oxide film (143) formed on the side face of the trench (13) in contact with the upper base, a protruding portion oxide film (142) formed on the side face of the trench in contact with the upper protruding portion, and a boundary oxide film (144) formed between the upper electrode and the lower electrode. The thickness t2 of the protruding portion oxide film is greater than the thickness t1 of the lower oxide film.

The present invention relates to a nickel-plated heat-treated steel sheet for a battery case having excellent corrosion resistance and a method of manufacturing the same. In one embodiment, the nickel-plated heat-treated steel sheet includes a base steel sheet and a nickel layer formed on one or more surfaces of the base steel sheet, wherein the nickel layer is laminated in two or more layers, and the weight per unit decreases in order from the base steel sheet toward the surface of the nickel layer.

The utility model discloses a combination combustion equipment based on annular ladder and vortex flow field, it includes: ladder cyclone cylinder, it is provided with fuel inlet and high temperature flue gas inlet, combustion flue gas outlet cylinder, it is sealedly installed at the top mouth place of ladder cyclone cylinder, and ash outlet cylinder is sealedly installed at the bottom mouth place of ladder cyclone cylinder, wherein, the cavity wall elevation of ladder cyclone cylinder upper cavity is enclosed into streamline closed cylinder, and the cavity wall of ladder cyclone cylinder lower cavity is that its section is along the circumferential track and extends into ring, and is enclosed into the conical cylinder annular ladder of gradually descending from big to small downwards. The utility model discloses device compares the conventional ladder furnace type of same ladder surface area, and the structure is more compact, and the material is more saving, and the surface area is smaller, and the heat loss is less, and high temperature flow field concentrates in the central area close to the top outlet simultaneously, and the thermal efficiency is higher.

This utility model discloses a basket structure for maritime rescue, relating to the field of maritime rescue technology. The utility model includes a first connecting block and a second connecting block disposed above the first connecting block. A first connecting rope is fixedly connected to the top of the second connecting block. It also includes: an extension portion disposed above the first connecting rope; a retractable portion disposed on the first connecting block; and several retractable portions, all located outside the first connecting block. Each retractable portion includes several support assemblies. This utility model, by incorporating the retractable portion, solves the problem of existing basket structures being inconvenient to retract during use. This results in a large surface area of ​​the basket's bottom in contact with the water when lowered into the water, causing the buoyancy of the water to act instantly over a large area, leading to violent shaking of the basket and hindering rescue efforts.

This utility model relates to the field of tea container technology, specifically to a tea moisture-proof container; it includes: a main tank body, cylindrical in shape, with a partition on the upper part of the bottom plate of the main tank body, forming a first cavity for placing desiccant between the partition and the bottom plate, and a second cavity for placing tea leaves on the upper part of the partition; ventilation holes are provided on the partition; an inclined tea-dropping pipe is provided between the partition and the bottom plate; a rotating sleeve, a rotating body composed of a side plate and a bottom cover, the inner side of the rotating sleeve being rotatably connected to the outer wall of the main tank body, the bottom cover of the rotating sleeve being located at the lower part of the bottom plate of the main tank body, and the bottom cover of the sleeve having a tea-dropping hole matching the lower end of the tea-dropping pipe; and a weighing base, a rotating body with an open top, the upper edge of the weighing base being threadedly connected to the rotating sleeve, and a weighing device being provided at the lower part of the weighing base. The above structural improvements can reduce the influence of air and moisture during the tea-taking process and can also quantitatively measure the amount of tea taken.