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64results about How to "Effective accommodation" patented technology

Method for preparing novel antibacterial electronic cigarette appearance material

The invention provides a novel antibacterial electronic cigarette appearance material and a preparation method thereof. Tetraethoxysilane and sodium metaaluminate are used as raw materials, water is used as solvent, and under the template action of tripropyl ammonium hydroxide and tripropyl ammonium bromide, a nano silicon aluminum zeolite material of a cellular structure is prepared through molecular self-assembly. The cellular nano zeolite is soaked in a silver nitrate solution after high-temperature calcination, and silver-loaded nano zeolite is obtained. After the surface of the silver-loaded nano zeolite is subjected to organic modification, the silver-loaded nano zeolite is added into polyethylene (PE), polypropylene (PP) and butadiene-acrylonitrile-styrene resin (ABS) through a melt blending method, and accordingly the nano silver-loaded zeolite / plastic composite antibacterial material is prepared. The raw materials of the antibacterial material are simple and easy to obtain, the technical route is mature, the antibacterial material can be used as a novel antibacterial electronic cigarette sleeve material and play the effect of bacteriostasis in the repeated use process of electronic cigarettes, and the phenomenon that bacterium growth impairs the good health of electronic cigarette users is avoided.
Owner:CHINA TOBACCO GUANGXI IND

Solder mask hole-plugging structure and hole plugging method thereof

The invention provides a solder mask hole-plugging structure and a hole plugging method thereof. The solder mask hole-plugging structure comprises a PCB substrate and a solder mask screen plate; the PCB substrate comprises a through hole; one end of the through hole is provided with an S-side open window, and the other end of the through hole is provided a C-side open window; a screen hole is formed in the screen plate; the diameter of the through hole is d; the diameter of the S-side open window is d; the diameter of the C-side open window ranges from 0.8d to 0.9d; the diameter of the screenhole is d; the screen hole is aligned with the S-side open window; the through hole is filled with solder mask from the S-side open window through the solder mask screen plate; and the PCB substrate is baked. With the solder mask hole-plugging structure and the hole plugging method thereof of the invention adopted, the solder mask can be effectively accommodated and borne; pressure of two ends ofthe solder mask can be effectively balanced, so that the solder mask can smoothly enter the through hole, and therefore, the saturation of the hole-plugging of the solder mask can be ensured; and thesolder mask will not be abnormally expanded due to pressure imbalance, so that it can be effectively ensured that the solder mask will not linger on the tin side of a PCB, and therefore, the quality of the hole-plugging of the PCB can be significantly improved.
Owner:DIGITAL PRINTED CIRCUIT BOARD CO LTD

Axle box external subway bogie with integrated swing bolster and hoisting support device

PendingCN112693491AImproved mechanical properties of structural stiffnessReduce the number of weldsAxle-boxesBogiesBogieElectric machinery
An axle box external subway bogie with an integrated swing bolster and a hoisting support device belongs to the field of railway vehicle bogie devices and comprises a framework, the swing bolster, a wheel set device, a trapezoidal axle box device and a secondary suspension system. A cross beam and a side beam of the framework are of a box-shaped structure. The cross beam upper cover plate also serves as a side beam middle upper cover plate, a motor lifting seat upper cover plate and a gear box lifting seat upper cover plate, and the cross beam lower bottom plate also serves as a side beam middle lower bottom plate, a motor lifting seat lower bottom plate and a gear box lifting seat lower bottom plate; and trapezoidal axle box devices are arranged on the outer sides of wheels of the wheel set devices, upper cover plates in the middles of side beams are fixedly connected with hoisting supporting devices, and side bearings with grooves are fixedly connected to the tops of swing bolsters. The number of welding seams is effectively reduced, stress concentration is reduced, the efficiency of car falling and overhauling procedures is improved, and the overhauling and debugging process of height matching and leveling of the swing bolster and the car body floor end face and the platform after wheel turning is remarkably improved; and the wheel can be effectively protected, and the service life of the side bearing is long.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Lug ring type hydraulic cylinder displacement sensor installation structure

The invention relates to the field of hydraulic cylinder manufacturing, in particular to a lug ring type hydraulic cylinder displacement sensor installation structure. The lug ring type hydraulic cylinder displacement sensor installation structure comprises a lug ring cylinder barrel; the end portions of the two sides of the lug ring cylinder barrel are fixedly installed together with a cylinder bottom and a cylinder bottom lug ring correspondingly; a hollow cavity is formed among the inner side end face of the cylinder bottom lug ring, the inner side end face of the lug ring cylinder barrel and the inner side end face of the cylinder bottom and is internally used for containing an electronic head of a displacement sensor; a through groove is manufactured in the side wall of the end portion, on the same side as the lug ring cylinder barrel, of the cylinder bottom lug ring, communicates with the hollow cavity and is used for a terminal of the contained electronic head to stretch out; the induction end of the displacement sensor is installed together with a piston and a piston rod of a hydraulic cylinder; the end face, located on the same side as the lug ring cylinder barrel, of the cylinder bottom is rotationally provided with a side end portion of an adjusting end cover through a spigot; a thread is manufactured on the other side end portion of the adjusting end cover; the adjusting end cover is fixedly installed together with the electronic head through the thread; a through hole is manufactured in the inner edge of the adjusting end cover; and the interior of the through hole is used for the induction end of the contained displacement sensor to stretch out.
Owner:TIANJIN URANUS HYDRAULIC MACHINERY

Composite pipeline for hydrogen conveying and hydrogen leakage monitoring method

The invention relates to the field of hydrogen conveying pipelines, in particular to a composite pipeline device for hydrogen conveying and capable of monitoring hydrogen leakage in a full-pipeline mode in real time and a method for monitoring hydrogen leakage in the full-pipeline mode. The novel composite pipeline structure for hydrogen conveying comprises a plastic pipeline, a polyurethane foaming layer and a plastic protection layer, and the plastic pipeline, the polyurethane foaming layer and the plastic protection layer are sequentially arranged from inside to outside. The invention also provides a monitoring system formed by arranging sensors at specific positions by using the composite pipeline device, and provides a monitoring method for a real-time hydrogen conveying pipeline, so that real-time full-pipeline monitoring of the hydrogen conveying pipeline is realized. The composite pipeline for hydrogen conveying can effectively prevent hydrogen leakage and diffusion, reduces hydrogen conveying loss caused by leakage, slows down the situation that hydrogen leaks into air, improves the safety coefficient, avoids the situation that a sensor cannot detect the situation due to the fact that hydrogen escape is too fast and the hydrogen concentration is too low, and improves the safety coefficient. And effective monitoring of the whole pipeline is realized.
Owner:ZHEJIANG UNIV

Modified coco coir loaded nano zero-valent iron composite material as well as preparation method and application thereof

The invention provides a modified coco coir loaded nano zero-valent iron composite material. Modified coco coir is used as a loading base material; nano zero-valent iron is embedded in pores of the modified coco coir, gelatin colloid wraps the nano zero-valent iron, and a preparation method comprises the following steps: 1) selecting coconut shells, cleaning the coconut shells with water, and crushing the coconut shells into particles with a certain particle size by adopting a crushing machine; 2) drying the obtained coco coir, and putting the coco coir into a microwave expansion furnace for puffing treatment to obtain puffed coco coir; 3) adding a FeSO4 solution according to a certain weight ratio, adding an organic solvent and a dispersing agent, and uniformly stirring; 4) adding a certain amount of NaBH4 into the solution obtained in the step 3), quickly stirring, and filtering; 5) washing the obtained composite material with deionized water and an organic solvent respectively, andthen putting the composite material into a vacuum drying oven for drying to obtain the composite material. The coco coir used in the method is wide in source, and the method is easy and convenient tooperate, low in cost, capable of effectively treating low-concentration uranium-containing wastewater and suitable for large-scale production, and is suitable for large-scale production.
Owner:HENGYANG NORMAL UNIV

Electrostatic self-assembly spherical molybdenum trioxide/MXene composite material as well as preparation method and application thereof

The invention discloses an electrostatic self-assembly spherical molybdenum trioxide/MXene composite material as well as a preparation method and application thereof. The composite material is prepared by the following steps: dissolving soluble molybdenum acetylacetonate in ethanol, stirring to obtain a mixed solution, carrying out solvothermal reaction at 150-280 DEG C, cooling along with a furnace, washing, filtering, drying, and calcining at 400-600 DEG C to obtain a solid A; adding the solid A into a polydiallyldimethylammonium chloride solution, stirring, and centrifugally washing to obtain a solid B; dropwise adding an MXene aqueous solution into the solid B aqueous solution, stirring, standing, carrying out centrifugal washing, and carrying out freeze drying to obtain a solid C; andunder the protection of nitrogen, calcining the solid C at 400-600 DEG C to obtain the material. The composite material is self-assembled on an MXene nanosheet matrix through electrostatic interaction, the matrix can effectively accommodate the volume effect of molybdenum trioxide in the charging and discharging process, and the composite material has excellent charging and discharging cycle performance, rate capability and high initial coulombic efficiency.
Owner:CENT SOUTH UNIV

Passive optical fiber net of loop of multiple wave length light generated by utilizing central location

A passive optical network includes a central office (200) and a subscriber-side apparatus (310) connected with the central office (200) through an optical fiber link (300). The subscriber-side apparatus (310) performs communication with the central office (200) based on wavelength-division-multiplexed optical signals. The central office has a routing section (210), provided with first to fourth multiplexing ports (L1,RN,LN,R1), for demultiplexing multi-wavelength light inputted from the fourth multiplexing port (R1) into a plurality of channels (L1,LN,1). Each of the demultiplexed channels (L1,LN,1) is amplified and multiplexed for output through the first multiplexing port (L1). Optical signals inputted through the third multiplexing port (LN) are demultiplexed and outputted upstream. The routing section also multiplexes channels for downstream optical signals, outputting the multiplexed channels through the second port (RN). A splitting section (250), provided with first to third splitting ports and arranged on a loop optical waveguide connects the first (L1) and fourth (R1) multiplexing port with each other. The splitting section (250) causes some of multi-wavelength light inputted into the first splitting port to be outputted through the second splitting port and causes the remainder of multi-wavelength light to be outputted through the third splitting port connected with the fourth multiplexing port (R1). A circulator (260) causes the multi-wavelength light inputted through the second splitting port to be transmitted to the subscriber-side apparatus (310) and causes upstream optical signals received from the subscriber-side apparatus (310) to be outputted to the third multiplexing port (LN).
Owner:SAMSUNG ELECTRONICS CO LTD

Hardware Architecture and Computational Flow of Binary Weighted Convolutional Neural Network Accelerator

The invention discloses the hardware architecture of a binary weight convolution neural network accelerator and a calculation process thereof. The hardware architecture comprises three double-ended on-chip static random access memories which are used for buffering the binary weight of input neurons and a convolution layer, four convolution processing units capable of controlling calculation parts to complete major convolution calculation operation according to the calculation process, a feature map accumulation unit and a convolutional accumulation array. The feature map accumulation unit and the convolutional accumulation array are used for further processing the operation result of the convolution processing units to acquire a final correct output neuron value. The entire design exchanges data with an off-chip memory via a dynamic random access memory interface. In addition to the hardware architecture, the invention further provides the detailed calculation process which optimizes the hardware architecture and uses four lines of input feature map as a complete calculation unit. According to the invention, input data are reused to the greatest extent; the access of the off-chip memory is eliminated as much as possible; the power consumption of the deep binary convolution neural network calculation can be effectively reduced; a deep network is supported; and the scheme provided by the invention is a reasonable scheme which can be applied to an embedded system of visual application.
Owner:南京风兴科技有限公司

Novel take-out meal box

The invention discloses a novel take-out meal box. The meal box comprises a meal box connecting surface, a meal box cover and a meal box body, one side of the meal box connecting surface is hinged tothe meal box cover, the meal box connecting surface is connected with the meal box body, and two first openings and two second openings are formed in the meal box connecting surface; the two first openings are formed diagonally, the two second openings are formed diagonally, and a communicating opening communicated with the meal box body is formed in the center of the meal box connecting surface;a clamping groove is formed in the outer ring of the communicating opening, the meal box cover is provided with first insertion covers corresponding to the first openings, and the meal box cover is provided with second insertion covers corresponding to the second openings; a buckle corresponding to the clamping groove is arranged in the center of the meal box cover. According to the meal box, a staple food box and a vegetable box are separately designed so that the meal box can effectively contain vegetables and staple food; the openings and a containing groove are designed so that other accessories for catering can be placed in the meal box, and the space occupied by accessory tableware is reduced; the meal box is opened and closed through a zipper, so that the meal box is convenient to open and close.
Owner:惠州大亚湾南亚塑胶有限公司

Improved Annular Fuel Element and Fuel Assembly of Supercritical Water Reactor

The invention discloses an improved annular fuel element of a supercritical water reactor and a fuel component consisting of the fuel element. The improved annular fuel element comprises an inner wrapping shell and an outer wrapping shell coaxial with the inner wrapping shell, wherein granular fuel is filled between the inner wrapping shell and the outer wrapping shell; and a heat isolation coating layer is also arranged between the granular fuel and the inner wrapping shell. The fuel component consists of the annular fuel element, an upper heat isolation plate, a lower heat isolation plate, an upper flow guide plate and a lower flow guide plate which are matched with one another; a moderator on the inner side of the annular element and a coolant which is arranged on the outer side and flows in an opposite direction can be effectively shunted; no special control stick guide pipe is arranged in the component, so that the structural design of the component is simplified, the using amount of structural materials is reduced, and the economical property is improved; the advantages of uniformity in moderation of the annular fuel element, heat transmission on both sides, low fuel temperature and the like are fully developed; the engineering application feasibility is greatly improved; and therefore, the supercritical water reactor with relatively high economical property and safety can be designed.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
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