229results about How to "Long-term use" patented technology

The invention provides a tripeptide for promoting bone growth, the tripeptide is VPF, the amino acid sequence of the tripeptide is Val-Pro-Phe, the molecular weight of the tripeptide is 361.44 Da, and the tripeptide belongs to the technical field of functional bioactive peptides. The tripeptide can be prepared from egg yolk protein through enzymolysis separation and purification, can also be obtained through chemical solid-phase synthesis, has a good effect of promoting bone growth, can remarkably improve the growth and proliferation level of osteoblasts in a body, promotes synthesis and secretion of bone matrixes, and has a good application prospect. Meanwhile, the secretion of insulin-like growth factors (IGF-1), transforming growth factors (TGF-beta1) and I-type procollagen amino-terminal peptide (PINP) in the body is efficiently promoted, and good market prospects are achieved.

The invention discloses a method for recovering mixed acid waste liquid containing hydrofluoric acid, which comprises the following steps: reacting raw materials with sodium salt or potassium salt, and filtering to obtain filtrate; the raw material is mixed acid waste liquid containing hydrofluoric acid; feeding the filtrate into a diffusion dialysis device for treatment, wherein the diffusion dialysis device comprises a homogeneous anion exchange membrane; the recovery liquid obtained through treatment of the diffusion dialysis device is fed into a membrane separation device, the membrane material of the membrane separation device is an acid-resistant metal ion removal membrane, and the recovered mixed acid is obtained on the permeation side of the membrane separation device. According to the method, impurities and metal ions in the low-concentration waste acid solution can be effectively removed, the product reaches the electronic-grade recycling standard, the resource recycling rate is increased, the technological process is simple, energy consumption is low, and the method is suitable for industrial application and popularization.

The invention discloses a water area pollutant emergency treatment system and equipment in the technical field of water pollution treatment, and the system comprises a plurality of water quality monitoring modules which are used for collecting water quality factors of a covered area and generating real-time water quality data; the data collection module is used for acquiring, storing and forwarding real-time water quality data; the prediction module is used for analyzing and predicting the pollutant component evolution condition based on the real-time water quality data by using a big data model, and generating a pollutant component evolution condition graph of the water area; the emergency preprocessing scheme generation module is used for generating a corresponding preprocessing scheme and a preprocessing position based on the pollutant diffusion range diagram and the pollutant component evolution situation diagram; the biological filtration assemblies are used for being deployed at the pretreatment position and filtering and cleaning the water area. Plants aiming at specific pollutants are planted on the biological filtration assembly, and long-term ecological restoration can be achieved while water area pollutants are emergently treated.

The invention provides a high-precision patterning method of a perovskite thin film, and the method comprises the following steps: S1, adding a polymer and a perovskite precursor into a solvent, and carrying out heating and stirring to obtain a perovskite precursor solution; s2, coating the perovskite precursor solution on a substrate to obtain a perovskite precursor thin film; s3, annealing the perovskite precursor thin film to obtain a perovskite thin film; and S4, processing the perovskite thin film by using a femtosecond laser direct writing technology to obtain a high-precision patterned perovskite thin film. According to the method, high-precision laser ablation patterning is realized in a specified area on the perovskite thin film by utilizing the ultrahigh peak intensity of femtosecond laser and combining the digital processing characteristic of a laser direct writing system, the minimum characteristic size can reach 80 nm and is about lambda / 10 of an exposure source, and the optical diffraction limit is broken, which cannot be realized by other patterning technologies.

The invention provides a liquid crystal display panel control method and system based on artificial intelligence, and the method comprises the steps: capturing a facial image of a user through a high-resolution camera, carrying out the facial feature extraction and recognition through a deep learning algorithm, and estimating the age of the user; adjusting the blue light of the liquid crystal display panel based on the estimated age of the user, the ambient light brightness, the time, the geographic position of the user and the application type used by the user; after the blue light of the liquid crystal display panel is adjusted, user feedback is obtained, a deep learning model is trained according to the user feedback, and the blue light of the liquid crystal display panel is adaptively adjusted based on the trained deep learning model so as to meet user requirements; and after adaptive adjustment, collecting a new manual adjustment record of the user, updating the data set, and retraining the deep learning model by using the updated data set. Through the method and the corresponding system, the blue light output can be dynamically adjusted according to the use time and the personal preference of the user.

The invention discloses a treatment process of photovoltaic cell production wastewater, and relates to the technical field of industrial wastewater treatment. Comprising the following steps: treating dilute acid and dilute alkali through a reclaimed water recovery membrane system to obtain first produced water and reclaimed water concentrated water; treating the concentrated acid wastewater and the reclaimed concentrated water through a fluorine-calcium crystallization system to obtain defluorinated concentrated water and calcium fluoride crystals; treating the RO concentrated water and the defluorinated concentrated water by a hardness removal recycling system to obtain hardness-removed concentrated water and second produced water; treating the concentrated alkali wastewater through an alkali recovery membrane system to obtain purified alkali and alkali-removed concentrated water; hardness-removed concentrated water and alkali-removed concentrated water are treated by a comprehensive physicochemical system, and then are sequentially treated by a high-power concentration membrane system and a zero-discharge crystallization system to obtain solid wastes. The photovoltaic cell production wastewater treatment process provided by the invention achieves an economical and feasible zero-emission solution.

The invention relates to the technical field of press machines, and discloses a tablet processing device for producing compound patch colon sustained-release tablets, which comprises an operation table, an extrusion mechanism, a forming mechanism and a feeding mechanism, and the forming mechanism comprises a forming mold, an ejection assembly, a supporting assembly and an overturning driving assembly, the forming mold is rotationally installed on the operation table, a plurality of rows of forming hole sets are formed in the top face of the forming mold, and each forming hole set comprises a plurality of forming holes distributed at equal intervals. In the forming mechanism, upward movement and resetting of the extrusion mechanism serve as a power source, the forming mold is firstly driven to turn to a discharging posture, then the ejection assembly is driven to actively generate downward thrust on tablets in all the forming holes at the same time, so that the function that the tablets are rapidly and automatically separated from the forming holes is achieved, tablet forming is not affected, and the forming efficiency is improved. And the pressure-resistant and pressure-resistant sealing device can be used for a long time, does not need to be replaced frequently, and is lower in use cost.

The present invention relates to a functional nutritional composition, in particular to an immunity-enhancing composition. The composition comprises: i) human milk oligosaccharides, wherein the human milk oligosaccharides at least comprise neutral fucosylated human milk oligosaccharides; ii) beta-glucans from one or more sources, wherein the ratio of the human milk oligosaccharides to the beta-glucans is 33 to 50:1, and the composition optionally comprises other nutritional ingredients.

The utility model relates to the technical field of jacquard blankets, and discloses a cotton yarn jacquard blanket with a deodorization function, which comprises a jacquard blanket, the edge of the jacquard blanket is fixedly connected with a sealing edge, the jacquard blanket is formed by interweaving warp yarns and weft yarns, the cotton yarns of the weft yarns are formed by plying 16Ne / 2 deodorization cotton yarns and 10Ne / 2 common cotton yarns, and the sealing edge is fixedly connected with the sealing edge. The cotton yarn is the weft yarn formed by plying the common cotton yarn and the deodorization cotton yarn, so that four living stink in life can be eliminated, including ammonia gas stink (bromhidrosis and urine stink), hydrogen sulfide stink (protein putrefaction stink), trimethylamine stink (fish putrefaction stink) and methyl mercaptan stink (green Chinese onion putrefaction stink) as long as 30 g / m < 2 > of the deodorization cotton is reached; the product not only meets the requirement that people pursue the natural fiber comfort of the blanket, but also has the deodorization function, the deodorization function is permanent, the odor cannot be generated due to the use time of the blanket, and the blanket can be used for a long time.

The application relates to the field of medical instruments, and discloses an adjustable over-number blood collection tube sub-division storage device. The storage device comprises an open basket body and a movable baffle detachably installed in the basket body; the top of the movable baffle is provided with a connecting horizontal plate strip, the end of the connecting horizontal plate strip is provided with a buckle, and the buckle is in plug-in fit with the side wall of the basket body. The storage device can realize the straight and upright and anti-toppling placement of multiple blood collection tubes of the same patient by moving the baffle to fit different numbers of blood collection tubes; multiple blood collection tubes of different patients can be placed at intervals at the same time, the space can be distributed according to needs, waste is reduced, and the blood collection tubes are convenient to take; and the storage device is environment-friendly and reusable.

The invention discloses a special cleaning agent for a windshield of a vehicle body as well as a preparation method and application of the special cleaning agent. The cleaning agent comprises the following components in parts by weight: 20-25 parts of an emulsifier, 10-15 parts of a builder, 5-8 parts of a penetrant, 5-10 parts of a corrosion inhibitor and 50-65 parts of a solvent, wherein the emulsifying agent is selected from at least one of fatty alcohol polyoxyethylene 10 ether, isomeric alcohol polyoxyethylene ether and methyl stearate sodium sulfonate; the builder is selected from at least one of glycerol, coco fatty acid diethanol amide and sulfo-imidazoline betaine; the penetrant is selected from at least one of tetrasiloxane, isooctanol polyoxyethylene ether phosphate and alkylphenol polyoxyethylene ether; the corrosion inhibitor is selected from at least one of glycerol, sodium polyacrylate, benzotriazole, sodium tripolyphosphate and sodium gluconate. The cleaning agent has the advantages of being good in cleaning force, free of flash points, incombustible, free of corrosion to rubber base materials and the like.

The utility model discloses a 35kV ultralow-temperature cold-resistant power cable, which comprises a conductor, three co-extrusion insulating layers are wrapped outside the conductor, a copper belt and a polyester belt are sequentially wrapped outside the three co-extrusion insulating layers, a halogen-free low-smoke environment-friendly cold-resistant polyolefin protective layer is extruded to form a wire core, and the three wire cores are twisted into a cable. A first glass fiber tape is sequentially wrapped outside the cable core, a halogen-free low-smoke environment-friendly cold-resistant polyolefin inner protective layer is extruded on the outer side of the first glass fiber tape, a steel wire armor layer is adopted for armoring, a second glass fiber tape is wrapped outside the steel wire armor layer, and an outer protective sleeve is wrapped on the outer side of the second glass fiber tape. According to the utility model, all materials forming the cable have the halogen-free, low-smoke, flame-retardant and environment-friendly characteristics while the cold-resistant requirement is met, so that the safety of the cable is greatly improved, and the cable has excellent cold resistance and low-temperature toughness and can be used for a long time in high and cold, dry, windy and strong ultraviolet environments.

The utility model discloses a flow guide body assembly structure, and belongs to the field of oxygen generators. The flow guide body assembly structure comprises a base plate, a mounting groove is formed in the base plate, the flow guide body assembly structure further comprises a connecting block arranged in the mounting groove, and a first air port and a second air port are formed in the connecting block; the first connecting pipe and the second connecting pipe are arranged on the connecting block; the first communicating groove and the second communicating groove are both formed in the bottom of the connecting block, the two ends of the first communicating groove communicate with the first air port and the first connecting pipe correspondingly, and the two ends of the second communicating groove communicate with the second air port and the second connecting pipe correspondingly; grooves corresponding to the first communicating groove and the second communicating groove are formed in the mounting groove; according to the utility model, the installation and the disassembly are more convenient, the downtime is reduced, the working efficiency is improved, the fixation through a rubber tube or silica gel is not needed after the installation, and the problem of gas leakage is avoided.

The utility model relates to the technical field of nursing trousers, in particular to split nursing trousers. According to the technical scheme, the nursing pants comprise a split pants body, a rear lining, a front lining, a left waistline and a right waistline, the rear lining and the front lining are fixedly installed at the front end and the rear end of the split pants body respectively, the left waistline and the right waistline are installed at the left end and the right end of the rear lining respectively, and a left binding rope is fixedly installed on the side, away from the rear lining, of the left waistline; a right binding rope is fixedly mounted on one side, far away from the rear lining, of the right waistline; the two-in-one half-moon piece of the split pants body comprises a left two-in-one half-moon piece and a right two-in-one half-moon piece, and each of the left two-in-one half-moon piece and the right two-in-one half-moon piece comprises two half-moon pieces which are symmetrically arranged. The left waistline and the right waistline are bound together, the split pant body is bent to enable the back pasting pieces at the front end of the split pant body to be pasted on the left waistline and the right waistline to fix the positions of the split pant body, the nursing pant is formed, and the collecting pocket can be opened so that a diaper can be replaced conveniently.

The invention discloses a dead steam waste heat utilization system based on steam compression and an operation method, the dead steam waste heat utilization system is used for recycling waste heat of a waste heat pipeline, the system comprises a control module, and further comprises a softened water supply module, a heat exchange module, a steam compression module and a user output module which communicate in sequence. The number of the waste heat pipelines can be one or more, and the multiple waste heat pipelines are connected in parallel. Each waste heat pipeline can be communicated with one heat exchange module to form a single-stage heat exchange mode; and each waste heat pipeline can also be communicated with a plurality of heat exchange modules in series to form a multi-stage heat exchange mode. The operation mode of the system adopts an automatic control mode to realize automatic start and stop, and automatic adjustment of steam parameters is realized. The scheme has the beneficial effects that waste heat utilization of waste steam heat is realized, the steam recovery efficiency is improved, the utilization cost is reduced, flexible matching design can be realized according to the quality and quantity of waste heat resources, and the scheme has better economical efficiency and popularization value.

A non-stick pan comprises a metal pan body, and the inner surface of the pan body is provided with pits so that concave-convex parts can be formed on the inner surface of the pan body. A hard layer with pores is formed on the inner surface of the pot body after the pot body is subjected to a pretreatment process, and the hardness of the hard layer is more than 500HV; the hard layer is covered with a transparent closed connecting layer so as to close pores of the hard layer, and part of the closed connecting layer enters part of the pores of the hard layer so as to be firmly combined on the hard layer; an inorganic non-stick layer is sprayed on the closed connecting layer, and the inorganic non-stick layer is combined on the closed connecting layer.

This invention belongs to the field of building materials technology, specifically relating to a silica-alumina material, its preparation method, and its application. The silica-alumina material comprises 10-65 parts by weight of red mud, 20-60 parts by weight of slag powder, 0-20 parts by weight of silicate cement clinker, 0.1-8 parts by weight of an activator, and 5-15 parts by weight of an expanding agent; wherein, based on the mass of the expanding agent, the expanding agent comprises 0-60 wt% aluminum sulfate, 0-70 wt% carbide slag, 0-70 wt% tricalcium aluminate, 0-60 wt% calcium sulfoaluminate, and 0-60 wt% gypsum, and the content of at least two components in the expanding agent is not zero. The silica-alumina material of this invention, with its specific components and contents, can achieve both high strength and low shrinkage. When used in cement mortar, it can enhance the density of the cement and prevent cracking, enabling the material to be used for a long time.

The utility model discloses a special hinge for a ceramic tile stone invisible door, which comprises a supporting rod, an upper hinge component, a lower hinge component and a rotary pull rod, wherein the upper hinge component and the lower hinge component are arranged in mirror symmetry and comprise a hinge main arm, a hinge small arm and a base, and the rotary pull rod is only arranged on the upper hinge component or the lower hinge component. One end of the rotary pull rod is rotationally arranged between the middle point of the lower end of the small hinge arm and the hinge pin, and a through hole is formed in the other end of the rotary pull rod and sleeves a pull rod pin, away from the outer side of the pressure bearing, of the base to form a quadrangular structure capable of rotationally opening and closing around the fixed-point pressure bearing and the pin. The door opening and the decorative wall plate are made of the same material, the veneer is integrated, the overall effect is better, the rotary pull rod and the supporting rod act together, when a door is opened, after the movable frame leaves the door opening, under the action of the rotary pull rod, the movable frame translates towards the right outer side by a certain distance, a distance between the movable frame and a wall body is reserved, then the movable frame is rotated to be opened, and the wall body cannot be damaged.

The utility model discloses novel multifunctional sound-proof cloth, which relates to the technical field of sound-proof cloth and comprises a winding mechanism and a composition mechanism. The winding mechanism comprises a winding drum, a sound-proof cloth body is arranged outside the winding drum, discs are rotationally connected to the outer walls of the two ends of the winding drum, a sliding groove is formed in the top of one side of each disc, a moving seat is slidably connected into each sliding groove, and a cloth pressing piece is arranged on one side of each moving seat; the sound-proof cloth comprises a sound-proof layer, the sound-proof layer is arranged in the middle of a sound-proof cloth body, and flame-retardant layers are connected to the two sides of the sound-proof layer; the sound-proof cloth pressing device has the advantages that the cloth pressing piece is rotated to the end of the sound-proof cloth through the disc, the position of the disc is fixed through the cooperation of the fixing ring and the limiting ring, the cloth pressing piece is made to move downwards through the cooperation of the rotary disc and the threaded lead screw, the end of the sound-proof cloth is pressed tightly, and the sound-proof cloth is prevented from loosening; the cloth pressing piece is convenient to detach, and the cloth pressing piece is prevented from interfering with folding and unfolding of the sound-proof cloth.

The utility model relates to the technical field of filter elements, and discloses a high-precision filter element for a hydraulic filter, which comprises a bottom cover and a top cover, an inner support component is arranged between the bottom cover and the top cover, a stainless steel filter screen component is arranged on the outer side of the inner support component, and an outer filter component is arranged on the outer side of the stainless steel filter screen component. According to the high-precision filter element for the hydraulic filter, the inner supporting assembly, the outer filtering assembly and the stainless steel filter screen assembly are arranged, through the design of a vertical rod support and an annular support, the strength of the interior of the high-precision filter element can be improved, and the situation that the filter element is concaved inwards due to external force is avoided; meanwhile, the PP cotton layer, the ultrafiltration membrane layer and the glass fiber filtering membrane layer which are designed in a double-layer mode are adopted, multi-layer filtering can be achieved, the filtering effect can be improved to the maximum extent, the stainless steel filter screen assembly can conduct secondary filtering, and the stainless steel filter screen assembly made of stainless steel can be prevented from being rusted, is safer and can be used for a long time.

The utility model discloses a novel bra. The novel bra comprises a fixing belt, a left cup cover and an anti-moving assembly, a left cup cover and a right cup which are adjustable in distance are detachably arranged on the fixing belt through a fixing assembly, the adjacent ends of the left cup cover and the right cup which are attached to the skin of the human body are each provided with at least one set of anti-moving assembly, and each set of anti-moving assembly comprises an elastic piece, an adhesive layer and a cover body; the upper part of the left cup or the right cup is sunken inwards to form an assembling groove for assembling the elastic piece, and the elastic piece can extend out of the assembling groove and is fixedly provided with an adhesive layer capable of being adhered to the skin of a human body. When a wearer wears the V-shaped low-collar coat, the cups are easy to expose, the wearing comfort is reduced, the attractiveness is affected, and the problem that the cups are easy to shift in the exercise or walking process is solved.

The invention provides an artificial fish reef and an installation test method thereof, and the artificial fish reef comprises a plurality of main bodies, each main body is provided with a fish nest hole, and each main body is provided with a first through hole penetrating through the main body and a second through hole penetrating through the main body at the same outer ring height; a plurality of shaft sections are arranged on each first assembly part; a corresponding groove position is formed in the position, directly facing the corresponding shaft section, of each second assembly part, and the groove positions are matched with the shaft sections in shape; the main bodies are arranged transversely and longitudinally, the first assembly part penetrates through the first through holes of the main bodies, the second assembly part penetrates through the second through holes of the main bodies, the first assembly part and the second assembly part which are located in the same main body are meshed through the shaft section and the groove position, and the main bodies are arranged and spliced to form a solid geometric structure. The service life of the artificial fish reef can be prolonged, and it is ensured that the fish reef structure and the putting position are reasonable so as to ensure that the artificial fish reef can be used for a long time.

The invention provides a three-point leveling device for a microscope glass slide. The three-point leveling device comprises a slide way fixing plate, a proximity switch, an adjusting side plate, a magnetic iron piece, a magnetic stone, a glass slide slide way, a phytoplankton standard counting frame, a cover glass, a pull-out piece, a pin rod, a bottom adjusting seat, a fine thread adjuster mounting seat, a fine thread adjuster, a tension spring, a wave piece, a set screw and a wedge-shaped upper end adjusting plate. The flatness of the wedge-shaped upper end adjusting plate is adjusted through the three fine thread adjusters, meanwhile, it is guaranteed that the tension spring can be in a stretching state, and the requirement for long-term use of an instrument in various environments and various platforms can be met only through one-time leveling adjustment.

The utility model discloses a multifunctional insecticidal lamp, which belongs to the technical field of insecticidal lamps, and comprises a bottom plate and a box body, a plurality of groups of lamp posts are fixedly connected in the box body, a plurality of groups of hollowed-out grooves are arranged on the box body, a power grid is fixedly connected in the box body, a partition plate is arranged in the box body, and the partition plate is arranged in the box body. The solar panel is used for storing power for the storage battery and supplying power for the illuminating lamp, the box body and the power grid, it is guaranteed that the solar insect-killing box can be used outdoors for a long time, resources are effectively saved, then insects enter the box body through the hollow-out groove, the insect-killing effect is good, and the insect-killing effect is good. Then insects can be killed by electricity under the action of the power grid and fall into the drawer through the square groove, then the clamping block can be separated from the locking block by pulling the pull block downwards, and the drawer can be pulled out through the handle, so that dead insects in the drawer can be cleaned conveniently.

The invention discloses a g-C3N4 (at) Zn / Eu-MOF composite dual-energy light conversion agent and a preparation method thereof, and a dual-energy light conversion film and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing g-C3N4 by high-temperature calcination of melamine; secondly, preparing Zn / Eu-MOF through a hydrothermal reaction of europium nitrate, zinc nitrate, trimesic acid and DMF; and finally, dissolving g-C3N4 in ethanol, carrying out ultrasonic treatment, adding Zn / Eu-MOF, and stirring for a certain time to obtain the g-C3N4-Zn / Eu-MOF composite dual-energy light conversion agent. And adding the g-C3N4atZn / Eu-MOF composite dual-energy light conversion agent into a homogeneous aqueous solution of PVA, uniformly stirring, and drying at 40 DEG C to obtain the PVA-based dual-energy light conversion film. The g-C3N4 and Zn / Eu-MOF are combined to obtain the blue light and red light dual-energy composite light conversion material, the light absorption range is widened, and the light absorption performance is improved, so that ultraviolet light is effectively absorbed, efficient conversion of short-wave light is achieved, the light energy utilization efficiency is remarkably improved, meanwhile, the light stability is enhanced, the durability of a PVA-based dual-energy light conversion film in the agricultural environment is enhanced, and the application prospect is wide. And the development of sustainable agriculture can be promoted.

The resin composition for anti-skid mats of the present invention has synthetic barium sulfate and a thermoplastic elastomer composition as essential components, contains 20 to 70% by mass of the synthetic barium sulfate, and has a type A durometer hardness of 20 to 80. By using the resin composition of the present invention, an anti-skid mat that can be used in water can be easily manufactured, and the anti-skid mat is not only soft and can sink in water, but also easy to handle by the elderly, etc., is lightweight, and is excellent in mechanical strength and wear resistance.

The device comprises a fixed base which is used for being matched with a roof so that the device can be integrally fixed to the roof; the rotary bearing is arranged above the fixed base; the rotating disc is arranged above the rotary bearing; the hanging part comprises a hanging point arranged on the outer side of the rotating disc, a rope winding assembly arranged on one side of the hanging point and an anti-falling assembly arranged on one side of the rope winding assembly; the anti-falling device can rotate, so that the anti-falling device does not need to be adjusted or installed again when the operation position is changed for operation; after an operator fastens a safety belt, the safety belt is connected with the anti-falling device for use; a plurality of operators can work at the same time, and winding is avoided; the roof anti-falling device is simple in structure, convenient to maintain and capable of being used for a long time; and a group of suspension points are arranged on each layer, so that double protection is realized, and personal safety is guaranteed.

The invention discloses a transmission type radiation intelligent building film. The building film sequentially comprises a release film, a bonding layer, a one-way perspective functional layer and an infrared radiation base layer. The invention further discloses a preparation method of the transmission type radiation intelligent building membrane. According to the building film, by arranging the release film and the bonding layer, when the building film is specifically used, the release film is torn off, and the building film can be directly bonded to a corresponding scene through the bonding layer, so that the building film is convenient and practical; besides, by arranging the one-way perspective function layer composed of the metal layer and the metal compound layer, the building film has low internal reflectivity, the transmission film has excellent privacy, and indoor privacy can be protected; through the arrangement of the infrared radiation base layer, the building film not only has excellent heat insulation performance, but also has the effects of excellent infrared radiation blocking thermal efficiency and the like; in conclusion, the building film not only has excellent heat insulation performance, but also has the excellent effects of high privacy, low light reflection, external adhesion and the like.