68 results about "Skin membrane" patented technology

The invention, which belongs to the technical field of data processing, discloses a radar radiation source signal feature selection method based on a membrane particle swarm multi-target algorithm. According to the method disclosed by the invention, a membrane calculation optimization theory is combined with a particle swarm optimization algorithm and the uniformity and diversity of a crowding degree maintenance set are utilized; and a data object is optimized by using two objective functions of correlation and redundancy and application to in-pulse feature selection of a radar radiation source signal is carried out. According to the invention, with non-dominated sorting and a crowding distance mechanism in a skin membrane, rapid convergence of the multi-target particle swarm optimizationalgorithm is kept by the algorithm and the solution set has high diversity. And then with KUT and ZDT series test functions, comparison testing is carried out on the algorithm and MOPSO, SPEA2 and PESA2 algorithms. Therefore, rapid convergence to the real Pareto leading edge is realized and the provided algorithm is feasible and effective.

The invention provides a pure mulberry silk facial mask. The facial mask comprises facial mask essence and a facial mask essence carrier, wherein the facial mask essence carrier is a pure mulberry silk mask cloth; and the facial mask essence is prepared from the following components in percentage by weight: 0.1-20 percent of skin conditioner, 0.01-20 percent of a moistening agent, 0.01-15 percent of a chelating agent EDTA-disodium, 0.1-5 percent of a thickening agent carbomer 940, 0.1-5 percent of a PH regulator potassium hydroxide, 0.1-10 percent of a preservative phenoxyethanol, 0.01-3 percent of a flavoring agent essence and the balance of a solvent. The pure mulberry silk facial mask is prepared from a pure mulberry silk mask cloth carrying fibroin and multiple amino acids, is sufficiently stored and loaded with the pure mulberry silk facial mask essence, can be used for infiltrating a skin membrane to achieve deep restoring; and furthermore, the method is simple in process, easy to operate and low in production cost, and can be used for effectively saving resource cost for enterprises.

There is provided an asymmetric integrally skinned membrane comprising a polyimide and another polymer selected from the group consisting of polyvinylpyrrolidone, sulfonated polyetheretherketones and mixtures thereof. The membrane which is substantially insoluble in an organic solvent and substantially defect-free can be useful as a separation membrane. Methods for preparing asymmetric integrally skinned polyimide membranes are also disclosed

The invention provides a multi-station cold heading manufacturing method for a plate die adjusting seat blank. Disc wool is used as a raw material. The method comprises the following steps of: performing phosphate skin membrane surface treatment on the disc wool, performing fine drawing and sizing on the wool subjected to the phosphate skin membrane surface treatment to obtain a disc finished product material, and shearing the disc finished product material obtained after fine drawing and sizing into single plate die adjusting seat pieces; and performing cold extrusion treatment, wherein the cold extrusion treatment is performed in corresponding stations. Straight bars and broken materials are replaced by adopting the disc material, so the requirement of multi-station cold heading continuous production can be completed, and the loss of stub bars and tails is reduced; and meanwhile, after multi-station cold heading one-time molding is adopted, the lathe allowance of a plate die adjusting seat is reduced, and the loss of raw materials is reduced by 30 percent, so the cost is reduced.

The invention discloses a gas pressure regulator which comprises a valve body and a pilot valve, wherein a gas inlet channel and a gas outlet channel as well as a valve rod are respectively arranged in the valve body, the lower end of the valve rod is arranged between the gas inlet channel and the gas outlet channel, the gas outlet channel is connected with a gas tube, a spring is sleeved on the lower end of the valve rod, a skin membrane is arranged on the upper end of the valve rod and positioned in a cavity at the upper end of the valve body and used for dividing the cavity into an upper skin membrane cavity and a lower skin membrane cavity, the pilot valve is respectively connected with the gas inlet channel, the gas tube, the upper skin membrane cavity and the lower skin membrane cavity, a ventilating hole is arranged on the skin membrane, and the upper skin membrane cavity is communicated with the lower skin membrane cavity through the ventilating cavity. The invention has the advantage that the gas pressure regulator has lower use cost, reduces gas leakage points and is convenient for controlling flow.

The invention discloses an all-round skin repairing active peptide water skin membrane, which is good for repairing damaged skin, hydrating, moisturizing, activating, delicate, bright, restoring elasticity, and keeping skin youthful. Contains the following components in mass percentage: Niacinamide: 0.1%‑0.5%; Panthenol: 0.5%‑2.5%; Acetyl Hexapeptide‑8: 0.2%‑0.6%; White Flower Chamomile Extract: 1%‑3 %; Chamomile Extract: 0.6%‑2.0%; EGF: 1.0%‑2.0%; Sericin: 0.1%‑0.5%; Compound Amino Acid: 2.0%‑3.0%; Sodium Hyaluronate: 0.01%‑0.1%; Glycerin: 3%‑6%; Butylene Glycol: 2%‑4%; Auxiliary ingredients: 0.2%‑3%; the balance is water.

The invention provides a skin membrane repair drug. The skin membrane repair drug is characterized by comprising the following bulk drugs in parts by mass: 10-20 parts of rhizoma coptidis, 5-10 parts of dragon's blood, 10-20 parts of pearl powder, 10-20 parts of bletilla striata, 5-10 parts of dahurian angelica, 25-35 parts of lithospermum and 5-15 parts of safflower. The skin membrane repair drug has the beneficial effects that compatibility between the drug and body tissues is improved, the drug can be fully absorbed by skin and the filled drug is turned into one part of the incomplete tissues, and thus efficacies of purging pathogenic fire, clearing away toxic materials, eliminating dampness, promoting blood circulation, cooling blood, stopping bleeding, relieving pain, removing blood stasis, discharging pus, resisting bacteria and diminishing inflammation, promoting tissue regeneration and the like can be fully exerted, wound healing is promoted and skin grafting procedure is omitted and no or less scars are left. The skin membrane repair drug is applicable to skin membrane repair for burn and scald wounds as well as chronic rhinitis, solar dermatitis, cheilosis, infant red buttock and the like; and the skin membrane repair drug can achieve immediate curing effect after use.

The invention provides a system and a method for carrying out coating pretreatment of a metallic workpiece, wherein the system for carrying out coating pretreatment of the metallic workpiece comprises a pre-degreasing bath, a degreasing bath, a first rinsing bath, a skin membrane conversion slot and a second rinsing bath, a free alkalinity control system, a pH control system and a conductivity control system. The metallic workpiece can be carried out coating pretreatment effectively by using the system of the invention.

The invention relates to the technical field of cosmetics and in particular relates to a long-lasting moistening skin conditioning agent and a preparation method and application thereof. The skin conditioning agent is prepared by extracting the following raw materials in percentage by weight: 5-30% of porphyridium, 5-30% of Skeletonema costatum, 5-30% of tremella fuciformis, 3-30% of lentinus edodes, 5-30% of dahurian larch, and 5-30% of ophiopogon root. The conditioning agent has excellent moistening effect, can be used for effectively reducing dandruff, dryness heat and other symptoms caused by skin dryness; in addition, the conditioning agent has good affinity with skin membrane protein, is capable of enhancing the absorption of skin to the nutrients, increasing the hydration function of the cells, and ensuring that the self tolerance of the skin in a dry environment is improved.

The invention discloses a preparation method of novel tissue engineering skin. The method includes steps of jointly culturing an amniotic membrane decellularized scaffold and a mesenchymal stem cell to be a carrier, inoculating horn cell; culturing by a serum-free culturing system, and acquiring a complete tissue engineering skin membrane. Through the method, the method can culture a complete skin membrane and the skin membrane can be applied to the skin scar repair and leucoderma treatment. The horn cell is originated from body skin or prepuce of the newborn. The carrier is low in immunogenicity while also has biological activity; the serum-free culturing system can realize the in-vitro serum-free cultivation and amplification of the horn cell, and improve cell growth, multiplication, cell form, activity and function instead of bad influence; the skin membrane cultivated by the method is approached to natural skin; after the skin-grafting culturing, it can be applied to the scar repair of scaled and other injured skins as well as treatment of skin disease such as leucoderma.

The present invention relates to a process for preparing an asymmetric integrally skinned membrane for the separation of at least one solute from a solution, comprising the steps of: (a) preparing a polybenzimidazole dope solution comprising: (i) a polybenzimidazole polymer, and (ii) a solvent system for said polybenzimidazole which is water miscible; (b) casting a film of said dope solution onto a support; (c) immersing the film cast on the support into a coagulating medium to form an asymmetric integrally skinned membrane; (d) treating the membrane from step (c) with a cross-linking agent; (e) treating the membrane from step (d) with a cross-link modification agent. Further aspects relate to an asymmetric integrally skinned membrane and uses thereof.

The invention relates to a manufacturing method and an application of a hollow braided rope. The manufacturing method includes the steps of selecting fibers of specific fineness as materials, braiding the fibers by a braider after the fibers are twisted into strands, or braiding the fibers by the braider with the fibers not twisted into strands, inserting a stainless steel wire into the hollow space of the braided rope, shaping by a drum type microwave continuous heater, and the like. The hollow braided rope is shaped by microwave heating which belongs to an internal shaping process, and original surface appearance of the braided rope fibers is maintained. Compared with traditional external heat setting processes, according to the hollow braided rope obtained by the manufacturing method, space between each two strands of the rope and between each two fibers are not too tight, the rope surface is not smooth, and bonding effects are not affected. The hollow braided rope obtained by the manufacturing method can be used as an internal supporting material for internally supporting hollow fiber membranes. The outer surface of the hollow braided rope is rough, thereby bonding performance between the rope and skin membrane materials is improved, and the skin membrane materials are prevented from falling off during usage.

The invention discloses a water-based cleaning agent with an iron rust and copper rust removing function as well as a preparation method thereof, and belongs to the technical field of a metal cleaningagent. An excellent surfactant is selected and has excellent cleaning ability at medium and high temperature; the selected inorganic acid and organic acid can completely clean oxide and soldering flux generated during steel welding; a skin membrane generated by special organic acid is adopted and the cleaned steel surface has a certain anti-rust property; furthermore, after cleaning, obvious residues or exotic matters do not exist on the surface of the steel plate.

The invention relates to an overpressure closing valve for high-pressure natural gas. The overpressure closing valve comprises a pressure sensing head, a locking release mechanism and a closing valve body, wherein the locking release mechanism is provided with a valve clack drive rod and a locking release component; a circumferential groove is formed on the valve clack drive rod; the locking release component is provided with a locking tab; a valve clack and the valve clack drive rod are fixedly connected; a valve clack spring is arranged between the valve clack and the valve body; and a valve port is formed below the valve clack; a pressure sensing skin membrane, a pressure presetting mechanism and a horizontal compression bar are arranged in the pressure sensing head; and the horizontal compression bar and the locking release component are fixedly connected. When unreasonable high pressure occurs in a pressure regulating system, the pressure sensing skin membrane is driven by the pressure, acts on the locking release mechanism through the horizontal compression bar, releases the valve clack drive rod, and allows the valve clack fixedly connected with the clack valve drive rod to drop down so as to seal the valve port. In the whole working process, delay time does not exist, gas is not diffused, pressure jump is avoided, the environment is protected, and safety effect is achieved.

The invention relates to an artificial seed, which consists of a seamless soft capsule, wherein the seamless soft capsule comprises a structure with three layers or more than three layers of an innermost layer, an inner skin layer and an outer layer, the inner skin layer covers the innermost layer, and the outer layer covers the inner skin layer, wherein the innermost layer contains plant cell tissues capable of being divided, the inner skin layer consists of an inner skin membrane with solidified oil as major ingredients, and in addition, the outer layer is an outer skin membrane with the biodegradation performance. The artificial seed of the invention has high storage stability, and the germination percentage can be maintained at a high level.

The invention relates to a production method for an internal supporting hollow fiber membrane. Hydrophilic polymer liquid is taken as core liquid, a matrix polymer and a hydrophilic polymer are taken as membrane casting solutions, and the internal supporting hollow fiber membrane is prepared by extruding the core liquid, the membrane casting solutions and a hollow braided rope by virtue of a spinneret and performing consolidation forming. The hydrophilic polymer liquid is taken as the core liquid, so that the roundness of the section of the internal supporting hollow fiber membrane can be improved; due to existence of the core liquid, a consolidation manner for the membrane casting membrane is changed into a double diffusion manner, and internal supporting hollow fiber membranes with different apertures and different rejection performance can be spun at different bidirectional diffusion speeds; in addition, the membrane casting solution also contains the hydrophilic polymer, so that the bonding performance between the hollow braided rope and a skin membrane material can be greatly improved; the prepared internal supporting hollow fiber membrane can be used for an MBR and a submerged ultra-filtration component, the probability of filament breakage and pollution blocking is reduced, and the service life of the membrane is prolonged.

The invention discloses a plate membrane string concord resonance type bass string instrument which comprises a resonance chamber, an instrument rod, a skin membrane, bottom feet, a bridge, a tailpiece, an outlet, a pattern board, a string pillow and an instrument shaft. A board membrane resonance mode is adopted by the resonance chamber, the upper portion of the front face of a cavity is in soundboard vibration and the lower portion of the cavity is in skin membrane vibration through the resonance of the bridge, a sound beam and a column loudspeaker, and a long rectangular slit, namely, a sound-output hole is reversed at the junction of two materials in the middle. The middle of the front face of a cavity is a main vibration area of pronouncing of the cavity. The bridge is driven to vibrate through vibration of four strings, and an upper sound board and a lower skin membrane are driven to vibrate at the same time to achieve the recombination of the double sound effect. The plate membrane string concord resonance type bass string instrument has the advantages that when the sound board and the skin membrane are vibrated in a concord mode through the bridge, the sound beam and the column loudspeaker, similar physical characteristics should be presented; the setting of the four strings and effective string length enables performance techniques to be simple; the vertically-and-horizontally staggered bridge mode and the geometric performance of the bridge improve the sound quality of concord resonance; due to the fact that the board and the membrane are properly utilized to enable the sound-output holes to be formed in the junction of the board and the membrane, the recombination mode of vibrated audio signals of the board and the membrane is defined.

The invention discloses a compound external anti-ulcer tablet which is characterized by comprising the following components by percent: 15 percent of oxytetracycline, 15 percent of berberine, 10 percent of compound sulfamethoxazole, 10 percent of metronidazole, 15 percent of complex vitamin B, 15 percent of vitamin C, 10 percent of cimetidine, 7 percent of calcium and 3 percent of chlortrimeton. The compound external anti-ulcer tablet solves the problems that an existing external anti-ulcer tablet cannot be used for treating skin membrane ulcer such as bedsore, scald, and non-cicatrization of wounds, and is applicable to treatments of various infantile febrile convulsion patients.

The invention discloses a long-acting moisturizing composition. The long-acting moisturizing composition is obtained by extracting the following raw materials by weight percentage: 5-30% of ceratoniasiliqua seeds, 5-30% of greater plantain, 5-30% of artemisia sieversiana, 3-30% of crataegus monogina fruits, 5-30% of alkanna tinctoria roots, and 5-30% of Chinese milk vetch. The moisturizing composition prepared from the ceratonia siliqua seeds, the greater plantain, the artemisia sieversiana, the crataegus monogina fruits, the alkanna tinctoria roots and the Chinese milk vetch provided by theinvention has polysaccharide active ingredients, has an excellent moisturizing effect, and is capable of effectively reducing symptoms such as increased dander and dryness-heat caused by dry skin. Thecomposition has high affinity with skin membrane protein, can enhance the absorption of nutrients by skin, increases the hydration function of cells, and enables the skin to be improved in tolerancein a dry environment.

The invention relates to a preparation method of a collagen polypeptide skin membrane capable of reducing swelling and relieving itching, and belongs to the field of biomedical materials. The collagen polypeptide skin membrane capable of reducing swelling and relieving itching is prepared by the following steps: with collagen polypeptide, sodium carboxymethylcellulose, dialdehyde starch and starch as raw materials, forming a basic skeleton structure of the membrane; adding glycerol as a humectant, and controlling the humidity of the membrane; adding active components such as a scutellaria baicalensis extract, a coptis chinensis extract, a golden cypress extract and a rheum officinale extract; finally pouring the evenly mixed pasty mixed liquid into a mold, molding, and drying in a drying oven at a constant temperature; and uncovering the membrane, so as to obtain the collagen polypeptide skin membrane with good biocompatibility and capability of reducing swelling and relieving itching.

An insect trap includes a combination of one or more components used to classify the insect according to a genus and species. The trap includes an imaging device, a digital microphone, and passive infrared sensors at the entrance of the trap to sense wing-beat frequencies and size of the insect (to identify entry of a mosquito). A lamb-skin membrane, filled with an insect attractant such as carbon dioxide mixed with gas air inside, mimics human skin so that the insect can rest on the membrane and even pierce the membrane as if a blood meal is available. An imaging device such as a passive infrared sensor or a camera gathers image data of the insect. The insect may be a mosquito.

A preparation method of peanut containing bean curd skin comprises steps as follows: a residual solvent in bean meal is removed through drying; cleaned peanuts are ground until the particle size is smaller than or equal to 5 mm, and then soybeans are cleaned for standby application; the ground peanuts, the soybeans and the bean meal in a weight ratio being (8-12): (10-14): (4-6) are soaked in 100-110 parts by weight of water for 10-20 h, and the mixture is drained to obtain a drained product for standby application; the drained product and water in a weight ratio being 1: (4-5) are mixed and subjected to grinding and filtering sequentially to obtain pulp; a gluten fortifier is added while the pulp is stirred, the addition quantity of the gluten fortifier accounts for 0.05%-0.06% of the weight of the pulp, then the pulp added with the gluten fortifier is subjected to heating and membrane forming, and the pulp is drained; a bean curd skin membrane formed after the pulp is drained is dried at the temperature of 65-70 DEG C, and the peanut containing bean curd skin is obtained. The bean curd skin has the advantages of abundant nutrition, high yield, high gluten strength and the like. The method is simple in process, and few devices are utilized.

A method of forming a membrane on a patch of skin using a gel, for the purpose of protecting the skin area or administering pharmacologically active substances to or through the skin area. The main ingredients of the gel are an alkyl acrylate crosspolymer such as Carbopol Ultrez 20 and a water soluble polymer such as polyvinylpyrrolidone (PVP). The gel may also contain other ingredients such as water, ethanol, antioxidants, lubricants, and neutralizers. The gel has the properties of being colorless and clear, low skin and nose irritability, easy to administer, fast membrane forming time, and removable by washing with water.

The invention provides a three-dimensional fused deposition polyamide forward-osmosis membrane as well as a preparation method and an application thereof. According to the embodiment, the forward-osmosis membrane comprises a support layer and a forward-osmosis skin membrane, wherein the forward-osmosis skin membrane is formed on the surface of the support layer; the support layer is made of polysulfone and provided with a crosslinking layer, and the forward-osmosis skin membrane is formed through 3D printing of polyamide. Therefore, polysulfone can provide excellent support for the forward-osmosis membrane, the forward-osmosis skin membrane with a controllable three-dimension multilayer net structure and uniform thickness is formed on the support layer through a 3D printing technology, the porosity of the forward-osmosis membrane can be improved, and influence of concentration polarization on the separating property of the forward-osmosis membrane is reduced, so that higher water flux and higher retention rate are realized, and the performance of the forward-osmosis membrane is improved.

Aircraft, aircraft exterior speaker system, and method of projecting sound waves from an exterior of an aircraft are provided. An aircraft includes an outer skin membrane, a vibration actuator, and a controller. The outer skin membrane has an exterior surface that defines an exterior boundary of the aircraft. The vibration actuator is coupled for common vibration with the outer skin membrane. The controller is operatively coupled with the vibration actuator and is configured to generate a command for the vibration actuator based on audible content to be projected from the exterior surface. The controller is further configured to transmit the command to the vibration actuator. The vibration actuator is configured to vibrate in response to receiving the command.

The invention discloses an antibacterial wet tissue and a preparation method thereof, and relates to the technical field of wet tissue preparation. The antibacterial wet tissue comprises a wet tissue body and wet tissue liquid, wherein the wet tissue liquid comprises the following components: deionized water, a surfactant, vitamin E, an aloe extracting solution, citric acid, glycerol, a solubilizer, borneol, water-soluble chitosan, ethyl p-hydroxybenzoate, chlorhexidine acetate, a traditional Chinese medicine extracting solution and a humectant. According to the traditional Chinese medicine extracting solution, radix sophorae flavescentis, radix glycyrrhizae, fructus cnidii, scutellaria baicalensis, folium isatidis, herba houttuyniae, pericarpium citri reticulatae and fructus forsythiae are combined for use, the synergistic and antibacterial effects are achieved under the condition that the multiple components are compounded, the effect of the components is obviously better than that of independently added one component, or every two components cooperate to achieve the effects of clearing heat, drying dampness, eliminating turbid pathogen with aromatics and preventing microbial infection, and the antibacterial wet tissue has cleaning, comfortable and health-care effects during use, does not have any irritation or side effect on a skin membrane, smells fragrant, is convenient to carry, and has an effect superior to that in the prior art.

The invention provides a capsule skin membrane composition, which comprises carrageenan used for a gelatinizing agent and dextrin used for a skin membrane basing agent, wherein hard carrageenan and iota carrageenan in the carrageenan are mixed according to the weight ratio of more than 1:1 to lower than 1:10; 100 parts of the dextrin are mixed with the 1 to 50 parts of the carrageenan according to parts by weight; and bovine-derived gelatin is not contained in the composition. When the capsule skin membrane composition is used as a capsule skin membrane for preparing a capsule, the skin membrane characteristics of forming, cracking, strength, transparency and air seepage resistance of the prepared capsule are equal to those of the existing gelatin capsule. In addition, the skin membrane characteristic of adhesiveness of the prepared capsule in is better than that of the existing gelatin capsule.

The invention discloses a coating production technology for a decorative aluminum roll. The coating production technology comprises the following technology steps that firstly, initial cleaning is conducted, and the decorative aluminum roll is immersed in a water tank to be brushed; secondly, re-cleaning is conducted, and the decorative aluminum roll is flushed through a sprayer; thirdly, drying is conducted before coating, and the cleaned decorative aluminum roll passes through a low-temperature drying box; fourthly, coating of a skin membrane agent is conducted, and the dried decorative aluminum roll is coated with the skin membrane agent; fifthly, cooling is conducted before coating, and the decorative aluminum roll coated with the skin membrane agent is cooled through a constant-temperature box; and sixthly, preliminary coating is conducted, and spraying is conducted on the cooled decorative aluminum roll before cooling. By means of the coating production technology for the decorative aluminum roll, impurities, oil stain and sticky substances on the decorative face of the decorative aluminum roll can be thoroughly removed, and the efficiency of the drying stage before coating can be improved; and through the stepped temperature rise and temperature reduction manner, influences on the coating materials on the decorative face of the decorative aluminum roll due to sudden cooling and sudden heating are avoided, and accordingly, the coating quality of the decorative aluminum roll can be conveniently guaranteed.