9results about How to "Improve repair ability" patented technology

The invention relates to the technical field of medical preparations, in particular to moisturizing and repairing type artificial tear as well as a preparation method and application thereof. Comprising the following steps: preparing effective components including high-molecular-weight polydeoxyribonucleotide and hyaluronic acid or a salt thereof into a homogeneous-phase stable composite solution, sterilizing, filtering, and aseptically packaging, the artificial tear formed by selecting high-molecular-weight polydeoxyribonucleotide and high-molecular-weight sodium hyaluronate as effective components has a relatively good repairing effect on tissues, can form long-term moisturizing and lubrication on ocular surfaces, is suitable for treating xerophthalmia, repairing cornea, relieving inflammatory response and the like, and has a good application prospect. Important market values and clinical application prospects are realized.

The application discloses a novel modular steel-concrete composite joint, comprising a corner column and a sleeve module, the corner column is a right-angle three-axis frame structure, a plurality of corner columns are spliced to form a corner column unit according to needs, the corner column units are connected through the sleeve modules, the sleeve module and the corner column unit are hollow structures, and the hollow structures are filled with concrete. The novel modular steel-concrete composite joint has the characteristics of high connection integrity, safety and reliability, clear force transmission path, replaceable damaged components and the like, and simultaneously has superior anti-seismic performance and detachable and reusable characteristics. The novel modular composite joint adopts a self-recovery device, which not only guarantees the reusability and rapid post-earthquake repairing capacity of the module unit, but also realizes reasonable outward movement of a plastic hinge, and significantly improves the energy consumption and deformation capacity of the structure.

This invention discloses a polyacid-based mild acne-removing composition, its preparation method, and its application, belonging to the field of acne treatment preparation technology. By mass percentage, the polyacid-based mild acne-removing composition comprises 1%–10% bee venom peptide, 0.25%–5% microcapsules containing polydeoxyribonucleotides, 0.2%–1.5% soothing active ingredients, 0.5%–3% biosaccharide gum-1, 0.2%–2% biosaccharide gum-2, 0.05%–0.5% astragalus gum, 0.1%–1% pH buffering compound, 2%–10% acid mixture, and 3%–20% alcohol mixture, with the balance being water. This acne-removing composition achieved a low-irritation user experience with a high-concentration polyacid formula in subjects with sensitive, mild to moderate facial acne, effectively improving the problems of poor tolerance and limited applicability of traditional acid-based acne products for sensitive skin, significantly broadening the applicable skin types and application scenarios for high-efficacy acid-based acne products, and balancing effective acne removal with safety suitable for sensitive skin.

The utility model discloses a lithium battery grass trimmer, which relates to the technical field of grass trimmers, and comprises a machine head assembly, the top end of the machine head assembly is provided with a wire wheel support assembly in a buckling connection manner, the bottom end of the machine head assembly is fixedly provided with a grass trimming head, and the bottom end of one side of the machine head assembly is fixedly provided with a protective cover. A rotating handle is movably installed at the top end of one side of the machine head assembly. The design of the wire wheel support assembly is adopted to replace a traditional steel wire protector, the limiting protrusions on the wire wheel support assembly are clamped into the different clamping grooves, different angles can be changed, the protection function is achieved, meanwhile, under the special conditions such as trimming, supporting rolling can be achieved through the two rolling wheels, and the wire wheel support assembly is convenient to use. The machine head assembly or the protective cover is prevented from touching the ground, the guiding effect is achieved, manual holding is not needed all the time, fatigue of workers is reduced, and the repairing effect can be improved.

The invention discloses a wear-resistant tower-shaped packing for petroleum drilling and production equipment, which comprises a packing, the packing is a tower-shaped spiral packing, and the packing consists of a rubber matrix and reinforcing cloth, the rubber matrix is prepared from the following raw materials in parts by weight: 100 parts of rubber compound, 1 to 1.5 parts of stearic acid, 30 to 40 parts of filler, 20 to 25 parts of N330 carbon black, 8 to 10 parts of graphite, 2.3 to 2.6 parts of sulfur, 2.4 to 3 parts of accelerant and 12 to 15 parts of dioctyl phthalate. The rubber base body is high in abrasion resistance and rebound resilience, and meanwhile the reinforcing cloth is transversely distributed in the rubber base body, so that the service life of the packing can be greatly prolonged.

This application relates to a biocompatible repair gel ointment and its preparation method, belonging to the pharmaceutical field. The raw materials for preparation include the following components in weight percentage: 32-36% emollient occlusive agent, 7.8-9.4% emulsion stabilizing system, 18.7-25.5% polyol moisturizer, 0.59-0.8% skin repair active ingredient, 1-1.2% preservative synergist, 0.48-0.52% thickening rheology modifier, and water. The preparation method includes the following steps: mixing the emollient occlusive agent and the emulsion stabilizing system, heating and stirring to obtain an oil phase; mixing the polyol moisturizer, the preservative synergist, and water, heating and stirring to obtain an aqueous phase; adding the aqueous phase to the oil phase, homogenizing and emulsifying to obtain an emulsion system; adding the skin repair active ingredient and the thickening rheology modifier; stirring, cooling, and discharging to obtain the repair gel ointment. This application has the effects of improving transdermal water loss control, anti-inflammatory properties, and barrier repair performance.

The invention discloses a multi-scale self-adaptive plant ecological floating bed system for creating a fish habitat in the field of ecological floating beds, which comprises a fixed unit mounted on a riverbed and a floating bed unit comprising a plurality of planting units arranged in an array, and the planting units are connected through hinge devices; the planting unit comprises a floating plate and a planting basket, and the floating plate and the planting basket are connected through a telescopic device; the acquisition unit comprises a water level sensor and a water quality sensor; the control unit is connected with the water quality sensor, the water level sensor and the telescopic device. According to the multi-scale self-adaptive plant ecological floating bed system for creating the fish habitat, the planting unit adopts a submerged plant-emergent aquatic plant-floating leaf plant ternary coupling design, so that the ecological space is fully utilized; the planting baskets provide conditions for spawning, juvenile rearing and bait rearing of fishes, the adjacent planting land units are connected through the hinge devices, the floating bed can be rapidly and flexibly recycled or expanded, and the environmental adaptability of the system is improved.

The present application relates to a method for synthesizing a long-chain double-stranded nucleic acid from a short-chain single-stranded nucleic acid, said method being characterized by the presence of an intermediate, said intermediate being a long-chain double-stranded nucleic acid with a breach. In addition, the invention also relates to application of the method in synthesis of long-chain double-chain nucleic acid.

This invention discloses a stable synergistic composition based on asiaticoside and ergothioneine, which mainly comprises asiaticoside and ergothioneine, wherein the weight ratio of asiaticoside to ergothioneine is 0.5-5:1-8, and the content of asiaticoside in the composition is 0.05-2 wt%. This invention also discloses the application of asiaticoside in inhibiting the photodegradation of ergothioneine, the antioxidant use of the composition based on asiaticoside and ergothioneine, the use of the composition based on asiaticoside and ergothioneine as an FLG gene expression promoter, or a LOR gene expression promoter, or a Claudin-1 gene expression promoter, and the use of this composition in topical skin preparations.