87results about How to "Prevent dissemination" patented technology

A water-soluble photo-activatable polymer including: a photo-activatable group adapted to be activated by an irradiation source and to form a covalent bond between the water-soluble photo-activatable polymer and a matrix having at least one carbon; a reactive group adapted to covalently react with a biomaterial for subsequent delivery of the biomaterial to a cell; a hydrophilic group; and a polymer precursor. A composition including a monomolecular layer of the water-soluble photo-activatable polymer and a matrix having at least one carbon, wherein the monomolecular layer is covalently attached to the matrix by a covalent bond between the photo-activatable group and the at least one carbon. The composition further includes a biomaterial having a plurality of active groups, wherein the biomaterial is covalently attached to the monomolecular layer by covalent bonding between the active groups and reactive groups. Also provided is a method for delivery of a biomaterial to a cell.

The invention discloses a precision isothermal forging combined die for complex aerospace die forged pieces, which comprises an upper die and a lower die, wherein the upper die comprises an upper die seat (1), an upper die inner sleeve (2) and an upper die insert block (3); and the lower die comprises a side surface insert block pressure plate (4), a side surface insert block (5), a bottom surface insert block (6), a first ejector rod (7), a second ejector rod (18), a lower die inner sleeve (8), an ejector rod tray (9) and a lower die seat (10). The upper die insert block (3) constitutes the die surface of the upper die; and the side surface insert block (5), the bottom surface insert block (6) and the lower die inner sleeve (8) constitute the die surface of the lower die together. The invention provides the combined die, which can realize complete filling, smooth streamline, no folding, easiness in die release and strong universality for aerospace type complex members, such as aerospace joint type parts.

The invention relates to knit fabric and a production method thereof. The knit fabric comprises a surface layer and an inner layer. The inner layer comprises surface yarns and base yarns; the base yarns are added to the surface yarns by means of delayed plaiting and looping; the surface layer and the inner layer are connected through tucks of the surface yarns on the surface. The knit fabric is soft, capable of absorbing moisture, high in drying speed, capable of holding warmth, and resistant to pilling and yarn run-out.

The present invention relates to an embedded garbage classifying device. The embedded garbage classifying device according to the invention is characterized by being applied with a first combustible substance separator, a second combustible substance separator, a third combustible substance separator and a fourth substance separator which can separate the dust and dust sand in the mixed substance(embedded mixed garbage) thereby classifying the embedded garbage to incombustible substance that can be recycled and combustible substance that can be burned. Simultaneously, a driving gear and a chain which sustains the operating path are provided with a rubber conveyor belt, and correspondingly a drag harrow is provided. The combustible substance is classified through the separating device. Additionally, an auxiliary screen drum is installed at one end of screen drum of outer rotary body. The diameter of the auxiliary screen drum is same with the diameter of screen drum and the auxiliary screen drum is provided with screen holes. Additionally, when the blade barrel of inner rotary body rotates, the blade barrel supporting roller which supports the rotation of blade barrel of inner rotary body is positioned at the periphery edge of screen drum of external driving object.

The invention discloses a production technology of a waterproof wax-impregnated corrugated paper box. The production technology comprises six steps of putting a paper box on a hanging frame, pre-heating in a pre-heating drying channel, impregnating wax in a wax groove, leveling wax liquid in a leveling drying channel, drying wax and sizing, and taking off a wax box from the hanging frame, and is characterized in that the wax liquid for the waterproof wax-impregnated corrugated paper box is prepared from microcrystalline paraffin wax, oxidized polyethylene wax, amide wax, silicon dioxide nano powder, rosin, a surfactant and water. According to the production technology of the waterproof wax-impregnated corrugated paper box, disclosed by the invention, the used wax liquid is a wax composition, has excellent performance of water resistance, wear resistance and the like and has a long life cycle and good stability; in the production technology, heat preservation and heat insulation are carried out so that an energy-saving effect is realized; based on a PLC (Programmable Logic Controller) group control system, automatic flow line production can be realized and the production efficiencyis improved.

A fast uterine specimen transvaginal crushing, fetching and sealing device comprises a leakage-proof vagina plugging hole comprising a conical tube and a first end cover. The conical tube is fitted to the inner wall of the vagina tightly, the first end cover is fixed to the large end of the conical tube, the small end of the conical tube is opened, the first end cover are provided with a plurality of through holes, and the through holes are provided with one-way valves respectively. The device is capable of crushing a uterine of large size in a sealed environment electrically, the operation time is saved, tumor tissue debris can be prevented from spreading and transferring, normal tissue can be prevented from accidental injury, the inflation of the pelvic cavity can be maintained, the clear vision is provided by laparoscopic monitoring, and the accidental injury can be further avoided.

A drill bit cooling dust-proof device comprises an outer cylinder body and an inner cylinder body both in a vertical arrangement, wherein the inner cylinder body is coaxially arranged inside the outercylinder body, an annular cavity is formed between the outer cylinder body and the inner cylinder body, and the upper ends of the inner cylinder body and the outer cylinder body are fixedly connectedthrough an upper annular plate; the lower end of the inner cylinder body is lower than the lower end of the outer cylinder body, and a conical barrel is fixedly connected to the lower end of the outer cylinder body; the structure of the conical barrel is thin in the upper and thick in the lower, the lower end of the conical barrel and the lower end of the inner cylinder body are fixedly connectedthrough a lower annular plate, and a pipe joint is arranged on the upper part of the outer cylinder body; a plurality of nozzles are evenly arranged on the lower annular plate in the circumferentialdirection, and an upper bearing assembly and a lower bearing assembly are arranged on the upper and lower parts of the inner wall of the inner cylinder body correspondingly. According to the device, the spread of dust during the construction of the drill bit is effectively prevented, and an auxiliary effect of cooling the working drill bit is achieved, so that the physical health of constructors is greatly guaranteed, and at the same time, the service life of the drill bit is prolonged, and the construction level is improved.

The invention relates to a cat litter with deodorization and disinfection functions and a preparation method thereof, and relates to the field of pet supplies, the cat litter comprises the following raw materials by weight: 3-5 parts of a plant extract, 1-5 parts of zinc diricinoleate, 60-90 parts of plant fiber, 5-10 parts of a water absorbent, 3-7 parts of an adhesive, 2-5 parts of a surfactant, and 0.3-0.5 part of a biological enzyme; based on the total amount of the plant extract, the plant extract is prepared from the following raw materials in parts by weight: 1-3 parts of celastrus angulatus, 2-4 parts of coptis chinensis, 1-3 parts of melaleuca bracteata and 2-3 parts of yucca. The cat litter with the deodorization and disinfection functions, provided by the invention, has the effects of environmental protection, safety, high water absorption, efficient deodorization and bacteriostasis and the like, and is lower in cost.

The invention provides a hand-push type cleaning vehicle device for property cleaning. The hand-push type cleaning vehicle device for property cleaning comprises a bottom plate, a hanging rod and a partition plate; the front end and the rear end of the bottom plate respectively extend forwards and backwards to be provided with a front protective plate and a rear protective plate; a vehicle box, which is formed by four cuboid plate-shaped structures, is upwardly mounted at the peripheral edge of the top of the bottom plate. As fixed blocks and slide rails are arranged, the slide rails are vertically arranged on the side walls of the left end and the right end of a garbage bin, the fixed blocks are fixedly mounted in positions, opposite to the slide rails, at the lower end of a vertical plate through bolts, and I-shaped grooves corresponding to the slide rails are formed in the fixed blocks, the lower ends of the slide rails can be connected to fixed positions in the fixed blocks in a sliding manner so that the position of the garbage bin can be fixed under the combined action of the fixed blocks on the two sides, the middle part of the vehicle box and the partition plate; therefore,the garbage bin is convenient to take and put and cannot be separated from the vehicle in the process of going upstairs and downstairs.

The invention relates to knit fabric and a production method thereof. The knit fabric comprises a surface layer and an inner layer. The inner layer comprises surface yarns and base yarns; the base yarns are added to the surface yarns by means of delayed plaiting and looping; the surface layer and the inner layer are connected through tucks of the surface yarns on the surface. The knit fabric is soft, capable of absorbing moisture, high in drying speed, capable of holding warmth, and resistant to pilling and yarn run-out.

Disclosed is a method for treating pig manures to produce an organic fertilizer, which inoculates horse manures in pig manures and purifies and amplifies high temperature fiber bacteria thereof to prepare a zymogen agent through two times of high temperature fermentation, then composts are inoculated in a solar energy isolation greenhouse to produce the organic fertilizer. The method has advantages of fast compost starting, low cost of nitrogen protecting and deodorization agent, broad sources and good effects; and the whole process for producing the organic fertilizer is conducted in the solar energy isolation greenhouse, thereby effectively preventing secondary pollutions such as pig manures and diffusion of nutrients and realizing the clean treatment to the pig manures and production tothe organic fertilizer. The method is suitable for the southwest area and the like in China abound with rain and moisture and with rather low temperature in winter, and has advantages of low investment, low energy consumption, low cost, simple operation, strong practicability and easy promotion.

The present invention is related to a textile item (T) developed to be placed on the head of the health care providers.The item is made of conventional fabrics but it has specific properties to be used in the hospital setting, outer layer composed of a semipermeable component, inner layer composed of a breathable and antimicrobial component, and preferably an intermediate layer with the function of an antimicrobial barrier.Also, the presence of a pocket (P) simultaneously allows the user to store safely, and temporarily, small personal belongings.So, the present invention belongs to the area of protective clothing for professional use, particularly in the hospital setting.

The invention features a composition comprising a corticosteroid and a pHLIP® peptide. pHLIP® peptides target corticosteroids to cell surface acidity in inflamed and fibrotic tissues, where they translocate corticosteroids across plasma membranes into the cytoplasms of cells, thereby suppressing inflammation in the targeted tissues while avoiding the side effects resulting from non-targeted administration.

The invention discloses a cable joint protection box. The cable joint protection box includes a shell, the shell comprises a protection cavity which is used for protecting a cable joint, and the protection cavity is provided with a penetrating opening which penetrates through the inside and the outside and is used for penetrating a cable; and the shell is provided with a heat dissipation hole penetrating into the protection cavity from the outer side. A heating expansion plug is fixed in the heat dissipation hole; and the heating expansion plug is provided with a ventilation hole penetrating through the interior and the exterior. The heating expansion plug can expand to seal the ventilation hole to seal the heat dissipation hole when the environment temperature reaches a first preset temperature value, and the heating expansion plug can be separated from the heat dissipation hole in the pressure difference direction when the internal pressure is increased until the internal and external pressure difference reaches a preset pressure difference. The heating expansion plug is closed when the internal temperature is too high, fire spreading is effectively prevented, the heating expansion plug can be bounced off under high pressure, and shell explosion is prevented through pressure relief, so the service life is effectively prolonged, and a better fireproof ventilation effect is achieved.