NORTHWEST A&F UNIVERSITY SHENZHEN RESEARCH INST (China)
Inventor
Yao, Yiqing
Liu, Tairan
Lv, Hongyi
Abstract
A method for improving a gas production efficiency of an anaerobic fermentation system of a biomass solid waste is provided, belonging to the technical field of biomass energy and resource utilization. The method for improving a gas production efficiency of an anaerobic fermentation system of a biomass solid waste includes the following steps: mechanically stirring the biomass solid waste in a first-intensity mechanical stirring mode during a reaction start-up period; and mechanically stirring the biomass solid waste in a second-intensity mechanical stirring mode during a reaction peak period. The method is beneficial to hydrolysis and acidification in the start-up period of the anaerobic fermentation system, and does not inhibit activities of core microbial flora and key enzymes in the gas production stage.
A compound equipment of a latex-free tufted carpet is provided. The compound equipment includes an unwinding device, a compound roller, and a shaping device. The unwinding device is configured to unwind a rolled blank blanket, a hot-melt fiber mesh, and secondary cloth. The compound roller is configured to stack and compound the unwound blank carpet, the unwound hot-melt fiber mesh and the unwound secondary cloth in sequence to obtain a preformed tufted carpet. The shaping device is configured for the setting of the preformed tufted carpet at a preset temperature to obtain a finished tufted carpet. Combined with the hot-melt fiber mesh, the secondary cloth and the blank carpet are consolidated by means of thermally induced bonding, and latex is not needed for consolidation.
D05C 15/14 - Arrangements or devices for holding or feeding the base material
B65H 23/182 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
D05C 5/02 - Embroidering machines with arrangements for automatic control of a series of individual steps by electrical or magnetic control devices
D05C 15/20 - Arrangements or devices, e.g. needles, for inserting loopsDriving mechanisms therefor
NORTHWEST A&F UNIVERSITY SHENZHEN RESEARCH INST (China)
Inventor
Yao, Yiqing
Yang, Caiyun
Abstract
Aspergillus cejpii strain S8 deposited in the China General Microbiological Culture Collection Center (CGMCC), No. 3, No. 1, West Beichen Road, Chaoyang District, Beijing on Sep. 20, 2023, with a deposit number of CGMCC NO. 40828.
A nanofiber wrap yarn and a preparation method therefor, and a nanofiber wrap yarn strand and an application thereof, relating to the technical field of antibacterial textiles. The nanofiber wrap yarn comprises a core yarn and an outer wrapping layer wrapping the surface of the core yarn; the core yarn is a polypyrrole-cotton yarn; the polypyrrole-cotton yarn comprises a cotton yarn and polypyrrole particles distributed on the surface of the cotton yarn; the outer wrapping layer is made of an antibacterial nanofiber; and the antibacterial nanofiber comprises a polyacrylonitrile nanofiber matrix and ketoconazole and nano zinc oxide which are distributed on the polyacrylonitrile nanofiber matrix. The nanofiber wrap yarn has a relatively good inhibition effect on fungi and bacteria, particularly has a certain treatment effect on tinea pedis, is relatively low in cost, safe and reliable, and has durability and sustained release performance.
A self-attention-based method for detecting a defective area of a color-textured fabric. The method specifically comprises: establishing a color-textured fabric data set which comprises a color texture defect-free image, and superimposing noise on the color texture defect-free image in the color-textured fabric data set; constructing a Transformer-based Swin-Unet model and training same to obtain a trained model; and reconstructing, by using the trained model, a color-textured fabric image to be subjected to detection, outputting a corresponding reconstructed image, and then determining and positioning a defective area according to the reconstructed image. By means of the method, the problem of the detection of a defective area of a color-textured fabric can be effectively solved.
Disclosed in the present invention is an autoencoder-based detection method for a defective area of a colored textured fabric, specifically comprising: superimposing noise on a defect-free image of a colored textured fabric in a colored textured fabric data set; constructing a second memory-guided quantized variational autoencoder model; training the second memory-guided quantized variational autoencoder model according to a training parameter by using the noise-superimposed defect-free image of the colored textured fabric; and reconstructing, by using the trained second quantized variational autoencoder model, all images to be detected of the colored textured fabric, outputting respective corresponding reconstructed images, and then detecting to position a defective area. According to the present invention, a defect of the fabric can be quickly detected and positioned by calculating a residual of the images to be detected of the colored textured fabric and the corresponding reconstructed images and combining adaptive thresholding and closing operation processing, such that the situation of missed detection or over detection of a defective area is reduced.
A preparation method for a piezoelectric yarn reinforced resin-based composite material, comprising: preparing a piezoelectric core-spun yarn of which the core layer is carbon fiber and the skin layer is a piezoelectric polymer fiber net by utilizing an electrostatic spinning parallel electrode method; acquiring a piezoelectric yarn of which the outer layer is carbon fiber, the middle layer is a piezoelectric polymer fiber net and the core layer is carbon fiber by utilizing two-dimensional weaving; coating the piezoelectric yarn with a PU film to obtain PU-coated piezoelectric yarn; acquiring a woven fabric with carbon fibers as warp yarns and piezoelectric yarns wrapped by the carbon fibers and PU as weft yarns by utilizing three-way orthogonal weaving; and acquiring the piezoelectric yarn reinforced resin-based composite material by means of vacuum-assisted resin transfer molding technology. The piezoelectric yarn is implanted into the composite material, and the mechanical properties of the composite material are monitored by means of the piezoelectric change of the piezoelectric yarn in the composite material along with the increase of strain for the health monitoring of damage.
D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane linksPrecondensation products forming them
D03D 15/50 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
C08L 27/16 - Homopolymers or copolymers of vinylidene fluoride
8.
EVAPORATIVE COOLING AND SEASONAL COLD STORAGE-BASED LOW ENERGY CONSUMPTION AIR CONDITIONING COOLING SYSTEM
An evaporative cooling and seasonal cold storage-based low energy consumption air conditioning cooling system, which comprises an evaporative cooling apparatus (17) having a connected exhaust pipe (12), the evaporative cooling apparatus (17) comprises a housing, an indirect evaporative cooler (5), a direct evaporative cooler (6), and a coiled pipe (16) which are all arranged in the housing, and an underground cold storage apparatus (24) which is connected to the coiled pipe (16); the air conditioning cooling system further comprises an ice making unit connected to the underground cold storage apparatus (24) by means of a water outlet pipe (8), and the underground cold storage apparatus (24) is provided with an underground ventilation unit.
The present invention provides a dyed flexible PLA type 3D printing garment fabric and a dyeing process. The process comprises: step 1, washing the flexible PLA type 3D printing garment fabric to be dyed in a peregal O solution, then drying the fabric; and preparing a dye solution A, a dye solution B and a dye solution C by using disperse blue 2BLN, disperse red 3B 100% and disperse yellow SE-4N respectively; step 2, soaking the fabric obtained in the step 1 in the dye solution A, the dye solution B and the dye solution C respectively, then heating the dye solution A to 70-90℃, the dye solution B to 80-95℃, and the dye solution C to 70-95℃, and adjusting the pH value of the dye solution A to 4-7, the pH value of the dye solution B to 4-6, and the pH value of the dye solution C to 3-5 during heating respectively; and step 3, washing the fabric obtained after dyeing in the step 2, and then drying it to finish dyeing of the flexible PLA type 3D printing garment fabric.
D06P 1/16 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
Disclosed is a process for producing a bra with remote infrared, anti-bacterial and anti-mite functions, comprising: a weaving process, a scouring and bleaching process, a colouring process, a water scrubbing process, a soft finishing process, a dehydrating process, a baking process, a shaping process and a cutting out and sewing up process for a material, wherein the yarn used for the material is a mixed spun yarn of remote infrared, anti-bacterial and anti-mite fibre with a fineness of 14.7 tex and cotton. The bra is comfortable to wear, and has functions such as healthcare, thermal insulation and environmental protection.
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