87results about How to "Practical value for" patented technology

The invention discloses a gas diffusion layer, a preparation method thereof and a fuel cell. The gas diffusion layer comprises a base and a conducting micropore layer arranged on at least one side surface of the base, wherein the base is porous graphite paper. According to the gas diffusion layer disclosed by the invention, the porous graphite paper is adopted as the base, pores in the porous graphite paper base form longitudinal fast channels for moisture transfer, the micropore layer provides longitudinal and transverse transfer paths, so that the whole active area is covered with moisture transfer conveniently; moreover, the gas diffusion layer disclosed by the invention has the advantages that the raw materials are easily obtained, the processing technology is simple and the cost is low; and the gas diffusion layer has preferable flexibility and preferable mechanical property.

The invention discloses a utility tunnel inspection robot and a utility tunnel inspection system. The inspection robot comprises a moving module, which is slidingly arranged on a guide rail, a movingcarrier connected to the moving module, an inspection robot body, which is slidingly arranged on the moving carrier, a sensor assembly arranged on the inspection robot body, a mechanical arm arrangedon the inspection robot body, and an intelligent control module for controlling the inspection robot. The sensor assembly and the mechanical arm are both connected to the intelligent control module. The inspection robot can adapt with complicated conditions of utility tunnels, is capable of rapidly, comprehensively, circularly, and dynamically inspecting utility tunnels in 24 hours, and greatly improves the utility tunnel safety and inspection efficiency.

The invention provides a preparation method of a composite frictional material. The preparation method comprises the following steps that 1, a ferrous-based powder metallurgical frictional material is prepared; 2, shearing, smashing and screening are performed; 3, material mixing is performed; 4, the composite frictional material is prepared; 5 posttreatment is performed; 6, the composite frictional material is machined. Compared with the prior art, the composite frictional material integrates the characteristics of high temperature resistance and low abrasion resistance of the ferrous-based powder metallurgical frictional material and the characteristics of good toughness and low hardness of a resin-based composite material and has the advantages of high temperature resistance, low abrasion resistance, good toughness and low hardness. The ferrous-based powder metallurgical frictional material is used for preparing an automobile braking accessory, scratching of an automobile brake disc or drum is effectively avoided based on good braking performance, and frictional noise is small.

The invention relates to a preparation method of a high-density silicon nano-crystalline thin film, and the preparation method comprises: a silicon dioxide layer is formed on a silicon substrate; silicon monoxide is taken as a target material to be deposited on the silicon dioxide layer by the electron beam evaporation method, thereby forming a mixture thin film layer; silicon ions are implanted in the mixture thin film layer; and the mixture thin film layer is annealed to form the high-density silicon nano-crystalline thin film layer. The preparation method prepares the high-density silicon nano-crystalline thin film by the electron beam evaporation of the silicon monoxide and the ion implantation method for matching, thereby having the advantages of simple process steps, multiple purposes and ability of being compatible with the traditional Si-based CMOS technology. The surface density of the silicon nano-crystalline which is prepared by using the method can be up to 10<12>cm<minus 1> level, and the diameter of particles is in the range of 5-8nm. The preparation method is mainly applied in the preparation of key components of the third generation of silicon-based solar cell chips, silicon single electron devices, single electron memories, silicon nano-crystalline floating gate memories and other aspects, thereby being applicable to the requirements on large-scale production.

The invention discloses an oil making method through rapid heat cracking, which comprises the following steps: drying and grinding the raw materials; transmitting the disposed materials into rector to crack; separating the product to obtain the biological oil.

The invention discloses an electric surfboard and a manufacturing process of the electric surfboard. The manufacturing process includes the following steps of Step 1, installing, connecting pieces, connected with an external device, of the electric surfboard at a rear end of a foaming mold; Step 2, performing high-density foam injection molding at the rear end of the foaming mold while performinglow-density foam injection molding at a front end of the foaming mold; and Step 3, after the high-density foam and the low-density foam are cured, opening the foaming mold to extract the finished product of the electric surfboard. In the invention, firstly, the connecting pieces that need to be embedded inside the electric surfboard are placed on the foaming mold, and then the rear end of the moldis injected with the high-density foam; at the same time, the front end of the mold is injected with the low-density foam; the high-density foam and the low-density foam may be solidified into the finished product of the electric surfboard after being cured. Therefore, the strength of the front end of the electric surfboard manufactured by the manufacturing process of the invention is less than that of the rear end of the electric surfboard, the suitable strength of all parts is ensured, and the manufacturing cost is reduced.

The invention provides nano fuel catalytic synthesis particles. The nano fuel catalytic synthesis particles are prepared from nano metallic oxides, nano rare earth element oxides and nano transition metal oxides. Compared with the prior art, the nano fuel catalytic synthesis particles solve the energy conservation and emission reduction problems fundamentally according to the work principle of fuel equipment. Based on the principle that the fuel equipment produces thermal energy through fuel combustion and converts the thermal energy into kinetic energy through an engine system, the maintenance, repairing and performance improvement of an engine as well as catalysis of fuel for improvement of combustion efficiency are researched. With the adoption of the nano fuel catalytic synthesis particles, the fuel combustion efficiency is high, the conversion rate of the engine is high, and the technical problems about maintenance, energy conservation and emission reduction of the fuel equipment are solved.

The invention discloses a heated-non-combustible cigarette filter stick, and relates to the technical field of cigarette processing and manufacturing. The cigarette filter stick comprises a tobacco section, a filter stick section and a piece of cigarette paper; the cigarette filter stick is characterized in that the filter stick section comprises a mouth-touch part and at least one cooling part; the interior structure of the cooling part is similar to a cylinder that the middle sinks inwards; and air vents are formed in a piece of outer covering paper of the cylinder-like body. According to the scheme, smoke temperature is effectively reduced, so that smoking is facilitated, and meanwhile, smoke concentration and smoking quality of a cigarette are improved; and in addition, friction forceof the cigarette filter stick held in a hand is also improved, so that the cigarette filter stick can be fetched and placed conveniently.

The invention provides gas-producing low-alcohol-content sour bean milk and a preparation method thereof. The preparation method of the gas-producing low-alcohol-content sour bean milk comprises the following steps of preparing a mixed solution, wherein fermentation substrates of the mixed solution comprise a sugar substrate and a bean substrate; homogenizing the prepared mixed solution, and carrying out sterilization treatment; cooling the sterilized mixed solution, inoculating a fermentation agent, and carrying out constant-temperature fermentation; and then, refrigerating the fermented sourmilk so as to perform post-ripening so as to obtain the gas-producing low-alcohol-content sour bean milk. Compound fermentation is carried out by utilizing a gas-producing lactobacillus fermentum anda saccharomyces-cerevisiae fermentation agent according to the preparation method provided by the invention so as to produce a small amount of carbon dioxide, a trace amount of ethanol, and a plurality of flavoring substances; and thus, the prepared fermented plant-type gas-producing low-alcohol-content sour bean milk is refreshing and palatable in taste, and has a slight wine aroma. The gas-producing fermented milk product has a trace amount of bubbles, as well as a very low content of ethanol, and thus, the novel sour milk is refreshing in taste and unique in texture. Pursuits of the consumers to new types and new taste of sour milk can be met by the unique flavor, as well as the refreshing and smooth taste, of the gas-producing low-alcohol-content sour bean milk; moreover, taste of traditional sour milk is also improved.

The invention relates to a thin fan structure, which comprises a driving component and a runner assembly, wherein, the driving component includes a base, a coil circuit board and an axle center, the coil circuit board is arranged on the base; the runner assembly includes a bearing, a segment gear, a ferrous metal sheet and a magnet, the bearing is provided with an outer ring and an inner ring, the segment gear, the ferrous metal sheet and the magnet are fixed at the outer ring of the bearing, and the inner ring of the bearing is fixed at the axle center of the driving component, meanwhile, the coil circuit board of the driving component can drive the runner assembly to rotate. The thin fan structure of the invention can greatly reduce the overall construction thickness and weight of the fan structure, meet the requirements for lightness, tenuity and shortness of the fan and effectively expand the application range of the fan.

The invention provides a rotating bed. The rotating bed comprises a first driving device, a bed surface frame, a rotating device and a bed bottom frame, and the bed surface, the rotating device and the bed bottom frame are orderly connected. The bed surface frame is connected to the rotating device. The rotating device is connected to the first driving device. The first driving device is used for driving the rotating device to rotate. The bed surface frame of the rotating bed is connected to the rotating device. The rotating device is connected to the first driving device. When the first driving device drives the rotating device to rotate, and the rotating device drives the bed surface frame to rotate so that the angle of the bed surface frame relative to the bed bottom frame is changed without change of a position of the bed bottom frame. The rotating bed can conveniently change a bed surface frame direction according to the needs of a user without adjustment of the position of the whole rotation bed in high cost and high labor. The rotating bed solves the problem that the electric bed has structural defects so that a user must to move the whole bed to adjust bed position. The rotating bed solves the problem that the existing electric bed has a single function.

The invention discloses a tinned copper band manufacturing process. The tinned copper band manufacturing process comprises the following steps of removing redundant copper powder from the outer surface of a copper wire; performing washing on the outer surface of the copper wire by ethyl alcohol after copper powder is removed; performing wetting on the copper wire through soldering flux after the copper wire is washed by ethyl alcohol; performing calendaring on the copper wire after the copper wire is wetted by the soldering flux, and enabling the cylindrical copper wire to be changed into a rectangular copper band through calendaring; performing annealing treatment on the copper band; and performing tin coating on the copper band after the copper band is subjected to annealing treatment. By virtue of the tinned copper band manufacturing process, the copper powder on the surface of the copper wire can be reduced, and the finished product rate and forming efficiency of the tinned copperband can be improved.

The present invention provides a feed for producing pork containing DHA and a use method thereof. The feed comprises corns, soybean meal, wheat bran, lysine, methionine, stone powder, calcium formate, calcium hydrogen phosphate, edible salt, a premix for pigs, and schizochytrium limacinum powder or chlorella powder. The method aims at applying alga to develop the feed for producing the pork enriched in DHA. The DHA in the alga is not subjected to a food chain transmission and the feed does not contain heavy metals, is safe, pollution-free, high in content and free of fish smell, replaces fish oil, and solves the problems in the prior art. Besides, after feeding, the DHA content in the fat of longissimus dorsi of the produced pork is 40% or more higher than that of common pork, the content of the DHA is higher than the content of EPA, and a ratio of omega-6 to omega-3 is lower than 2.8. At the same time, after feeding, the degree of oxidation of the produced pork is not significantly different from that of the common pork. The optimized feeding method effectively improves the fatty acid composition of the pork and the produced pork is of great significance to the fatty acid balance of human body.

The invention provides a hydrogen-enriched water spray beauty apparatus and an intelligent water replenishing method. The intelligent water replenishing method includes the steps: detecting the capacitance value of a current skin; calculating a water content value and an oil content value corresponding to the skin according to the capacitance value, and acquiring single water spray quantity according to the water content value and the oil content value; generating a command according to the single water spray quantity to control a hydrogen-enriched water generation device to prepare hydrogen-enriched water; spraying the hydrogen-enriched water to the skin. The intelligent water replenishing method intelligently replenishes water for the skin, the condition of the skin can be detected in a data-measuring mode, the water is accurately replenished and oil is accurately controlled according to the specific condition of the skin, and too vague, general and subjective water replenishing for the skin is avoided. According to the intelligent water replenishing method, the water content value and the oil content value of the skin can be acquired, and the condition of the skin can be specifically known. Skin condition data are comprehensively, objectively and quantitatively acquired, and personalized professional water replenishing advice can be provided based on the detected data.

The invention discloses a manufacturing technology of a machining tool provided with a polycrystalline diamond tool bit. A polycrystalline diamond tool bit blank and a tool shank blank are aligned andfixed by the aid of welding fixtures, and then corresponding ends of the polycrystalline diamond tool bit blank and the tool shank blank are coated with welding paste and are subjected to vacuum welding; the other end of the polycrystalline diamond tool bit blank is subjected to laser cutting to form 32-36 cutting blades which are distributed annularly and evenly, a chip removal groove is formedbetween every two adjacent cutting blades, the blade width of each cutting blade ranges from 0.06 mm to 0.2 mm, the surface roughness Ra of the cutting edge of each cutting blade ranges from 0.1 micron to 0.4 micron, and the helical angle of each cutting blade ranges from 35 degrees to 55 degrees. The obtained machining tool provided with the polycrystalline diamond tool bit has the good abrasionresistance, has the long service life at least twice that of a welding piece pcd contour tool, has the higher workpiece machining efficiency and is shorter in machining time, products machined by theaid of the machining tool provided with the polycrystalline diamond tool bit are good in size stability, the testing frequency is reduced, and the rejection rate is low.

The invention provides a tea polyphenol chip and a preparation method of a chip body; the tea polyphenol is set in a sanitary towel and has good health-care function; as the tea polyphenol chip has good antioxidant capacity and antibacterial capacity, growth of germs and occurrence of peculiar odor can be effectively avoided; allergy due to the skin contacting the surface of the sanitary towel is avoided; in addition, as tea polyphenols can resist lipid peroxidation and prevent senility, the skin contacting the sanitary towel can be effectively protected, and aging of the skin is delayed; tea polyphenols are water-soluble substances; during usage of the sanitary towel, blood may fully dissolve the tea polyphenols in the tea polyphenol chip; the tea polyphenols may also inhibit the formation of melanin, and can inhibit lipid peroxidation and relieve pigmentation.

The invention provides a tea fungus-containing tofu coagulator. The tofu coagulator includes fermented tea fungus liquid and juice. Compared to the prior art, the objective of the invention is to provide the natural and safe tea fungus-containing tofu coagulator combining both nutrients and health care functions and a preparation method thereof. Products provided by the invention not only can meetthe consumer pursuit of tofu with new varieties and new flavors, but also can provide rich active substances for human bodies, improve organism immunity and promote the health of the human bodies.

The invention provides a temperature measuring gun, which comprises a camera, a distance measuring sensor, a target temperature sensor, an ambient temperature and humidity sensor and a processing module, wherein the camera is used for acquiring video information of a measurement target; the distance measuring sensor is used for acquiring distance information of the temperature measuring gun and the measurement target; the target temperature sensor is used for acquiring temperature information of the measurement target; the ambient temperature and humidity sensor is used for acquiring temperature and humidity information in an environment; and the processing module is used for acquiring the video information, the distance information, the target temperature information and the ambient temperature and humidity information, controlling a display screen to display the video information, the distance information, the target temperature information and the ambient temperature and humidity information, and controlling the display screen to identify a measurable region in real time. The temperature measuring gun captures real-time video information of the measurement target by means of thecamera, displays the video information by means of the display screen, and identifies the region where the temperature can be measured on the display screen, such that a user can determine the measurement target measured by the user.

The invention provides a molding device and a molding method. The molding device comprises a molding powder dispersing device, an injecting device, a molding cavity, a control device and a drive device. The molding powder dispersing device comprises a molding powder bin, a molding powder conveying device and a molding powder pushing and scraping device; the molding powder pushing and scraping device comprises a roller connected with the drive device; the injecting device is arranged on the upper part of an opening of the molding cavity; lifting devices are arranged in the molding powder bin and the molding cavity; and the injecting device at least comprises a first spray head and a second spray head.

The invention discloses a mechanical hand device. The mechanical hand device comprises a positioning mechanical hand for driving an external substrate to be moved and placed in a preset position and an unloading mechanical hand for unloading the substrate from an external device which takes down the substrate from the preset position and machines the substrate, wherein the unloading mechanical hand moves the substrate to a preset station. The mechanical hand device further comprises a positioning mechanical hand guide rail for installing the positioning mechanical hand and an unloading mechanical hand guide rail for installing the unloading mechanical hand, the positioning mechanical hand guide rail and the unloading mechanical hand guide rail are mutually parallel, and the horizontal plane height of the unloading mechanical hand guide rail is higher than that of the positioning mechanical hand guide rail. In the mechanical hand device, since the positioning mechanical hand guide railand the unloading mechanical hand guide rail are mutually parallel, and the positioning mechanical hand and the unloading mechanical hand are not in the same horizontal line, multiple working procedures can be simultaneously carried out, the efficiency is improved, and the space occupied by the mechanical hand device is reduced.

The invention discloses a skeleton layer for a marine flexible pipe, and a composite flexible pipe. The skeleton layer comprises a first special-shaped band and a second special-shaped band; the firstspecial-shaped belt is spirally wound to form a tubular skeleton layer body, and the inner surface of the skeleton layer body is provided with a spiral groove; and the first special-shaped band and the second special-shaped band are staggered and spirally wound to close the opening of the spiral groove. The skeleton layer has a simple structure and a reasonable design, can effectively solve the flow induced vibration and buzz problem caused by the internal flow of the flexible composite pipe with the skeleton layer, can smooth the flow of the internal oil and gas fluid, avoid the vortex generation and the flow induced vibration phenomenon, greatly improve the safety of the oil and gas transportation of the marine flexible pipe, and can be widely used in the offshore oil and gas compositeflexible pipe structure.

The invention discloses a graphene-ZnO composite material, a preparation method thereof, and an ultraviolet detector. The preparation method of the graphene-ZnO composite material comprises the following steps: (1) obtaining vertical graphene pieces on a substrate by adopting a radio frequency plasma enhanced chemical vapor deposition method, wherein the substrate adopts foamed nickel; (2) transversely growing ZnO nanowires among the vertical graphene pieces by adopting an electrochemical deposition method. The graphene-ZnO composite material obtained in the invention has a high specific surface area. When the graphene-ZnO composite material is applied to an ultraviolet detector, the surface area (namely the actual photosensitive area) of a photosensitive layer in the ultraviolet detectorand the photoproduction electron utilization efficiency are effectively improved, and the ultraviolet detector based on the graphene-ZnO composite material has higher electrical properties and stability, and the heat conduction capability is improved.