33results about How to "Avoid performance damage" patented technology

The present invention discloses a plant polyphenol modified polymer membrane as well as a preparation method and application thereof, in particular relates to the field of modified polymer membranes with anti-fouling properties. In the prior art, due to low surface energy of the polymer membrane, the polymer membrane is susceptible to contamination with proteins, oils and the like and causes a series of temporary or permanent pollution problems. The polymer membrane provided by the invention utilizes the super-strong adhesive ability of plant polyphenols and the coordination of polyphenols andmetal ions to build a hydrophilic coating on the surface of a hydrophobic polymer membrane. The polymer membrane provided by the invention has the advantages of simplicity, high efficiency, mild reaction condition and strong practicability. The controllable hydrophilic modification of a hydrophobic polymer can be realized by changing the conditions of the dip-coating time, the concentration of aplant polyphenol mixed solution, the pH, the temperature and the like, and a high permeation flux can be maintained in the course of cross-flow continuous work, so that the polymer membrane has a verygood application prospect in the field of water treatment. The invention also opens up an effective way, which is simple and easy to operate and has strong universality, for modification of polymer membranes under mild conditions.

The invention discloses a hyperbranched polymer-modified polymer film, and a production method and an application thereof, and belongs to the field of modified polymer films having an antifouling property. In order to overcome the disadvantage of a series of temporary or permanent pollution of proteins, oils and other pollutants to polymer films in the prior art due to low surface energy, a specially-structured hyperbranched polymer is prepared through benzyl group protection and deprotection by starting with an initiator, and plant polyphenols are used to graft the film of a polymer film withthe specially-structured hyperbranched polymer in order to produce the hyperbranched polymer-modified polymer film. The hyperbranched polymer-modified polymer film has the advantages of remarkable antipollution and antibiosis property, improved hydrophilicity, and excellent application prospect in the field of sewage treatment. An easily-operated, strong-universal and effective way is opened up for the modification of polymer films under mild conditions.

The present invention provides compositions, formulations and methods for treating liver diseases related to tissue inflammation and progressive fibrosis, e.g., progressive liver fibrosis following either chronic or acute injury. The compositions of the invention provide the use of therapeutic agents as an adjunct therapy to transplantation of cell populations capable of effecting liver repair.

Provided are compounds, pharmaceutical compositions, cosmetic and dermatological compositions or nutritional supplement compositions, comprising omega-3 very-long-chain polyunsaturated fatty acids (n-3 VLC-PUFAs) and/or their endogenous hydroxylated derivatives thereof, known as elovanoids. This disclosure provides methods for neuroprotection, organ and tissue protection or restoration, prevention or slowing down of aging-related diseases and conditions, and sustainment of function during the aging process.

The invention provides a method of driving low energy ultrasonic metal welding by nanoparticles. The method comprises the following steps of preparing nanoparticle paste or powder; and coating a to-be-welded surface f upper and lower to-be-welded metals with 1-50 [mu]m thick nanoparticle paste or powder and then carrying out ultrasonic welding at room temperature or in a heating condition. By adopting the technical scheme, conventional solid phase connection at a peak of a coarse surface in the ultrasonic welding process, a size effect of the nanoparticles at gaps, a friction temperature riseeffect and a gap filling effect are integrated to further form a good ultrasonic welding joint with a lower ultrasonic welding input energy, so that the production process is simplified, the influenceto a to-be-welded material is reduced, and performance such as sealing property of a weld joint, mechanical properties of the welding joint, electrical conductivity and heat conductivity are improved.

The present invention provides compositions, formulations and methods for treating liver diseases related to tissue inflammation and progressive fibrosis, e.g., progressive liver fibrosis following either chronic or acute injury. The compositions of the invention provide the chronic use of therapeutic agents to effect liver repair.

The invention discloses an expansible elastic interspinous process dynamic fixer, and belongs to a medical human implant for treating a lumbar degenerative disease. The expansible elastic interspinous process dynamic fixer is expansible and integral, is cylindrical when not expanded and dumbbell-shaped after being expanded, and consists of a support part and wing parts on both sides, wherein the support part has a cylindrical structure with certain support force; the wing parts refer to natural transition wing-shaped structures on both sides of the support part; the diameters of the two wing parts are larger than that of the support part; during surgery, the expansible fixer can be used for performing percutaneous puncture or making a small incision when not expanded, is guided to an ideal interspinous process position via a guide wire, can be expanded by using a balloon or an expander, and automatically fits with a spinal process due to the resistance difference among different positions, the support part has an elastic interspinous process fixing function, the wing parts on both sides are used for preventing the fixer from moving, the entire structure is well combined with the spinal process, the entire fixer is automatically limited in an interspinous process and can be matched with interspinous process anatomy after the balloon is extracted. The expansible elastic interspinous process dynamic fixer has the advantages of simple and reliable structure, selectable elasticity and shape change, convenience in implanting and small traumas.

The invention provides a method for controlling a high-orbit satellite lithium ion battery pack. Voltage, current and temperature parameters of a satellite battery pack within different flight periodsof an illumination season and an earth shadow season are monitored; and calculation and monitoring are carried out by introducing an additional charging threshold and a discharge capacity and thresholds of different flight periods are corrected to realize precise controlling of the storage battery pack during the in-orbit operation period of the satellite. Therefore, the control flow is simplified; the stability is improved; and the emergency condition can be predicted in advance.

The invention discloses a preparation method of nano-scale micron-scale multistage-structure composite glass fiber. In the preparation process, firstly, the surface of the glass fiber is coated with a layer of graphene oxide, so that the fiber structure can be effectively protected, and damage of a strong oxidizing environment, a strong alkaline environment and the like on the structure and the performance of the glass fiber is avoided; meanwhile, a nanometer material grown on the surface of the glass fiber not only increases the surface roughness of the glass fiber, but also increases the specific surface area of the glass fiber. In the preparation process of coating the glass fiber with the graphene oxide, the conventional physical adsorption as well as the electrostatic effect between positive and negative charges is utilized, so that the graphene oxide coats the glass fiber more firmly. The nano-scale micron-scale multistage-structure composite glass fiber prepared by the preparation method is good in severeness resistance and alkali corrosion resistance, has a stronger interface bonding force with a matrix, and is contributive to development of high-performance concrete.

The invention relates to the technical field of plastic product recovery, in particular to a plastic product and hardware recovery device and an operation method thereof. According to the plastic product and hardware recovery device and the operation method thereof, the plastic product and hardware recovery device comprises a rack, cushion blocks, ejector blocks, a pull shaft, a power source, a controller, a pull block and a pull rod assembly. The matching part of a pull rod is matched with hardware in a plastic product, the recovery device is started, the pull block drives the pull rod to move upwards through a clamping barrel, the matching part of the pull rod retracts into the clamping barrel, the clamping barrel abuts against the surface of the plastic product around the hardware, the pull rod continues to move upwards, and therefore the hardware is pulled out of the plastic product so that the hardware can be located in a containing groove, the plastic product falls off, the hardware is taken down from the matching part, and recovery of the hardware and the plastic product is completed.

The invention relates to an aluminum alloy automobile exhaust pipe and a preparation method thereof, and belongs to the technical field of metal pipe preparation. The preparation method comprises thefollowing steps of by taking rice husks as a raw material, pretreating and carbonizing the rice husks, preparing to obtain silicon carbide fibers, mixing the silicon carbide fibers with a sodium silicate solution, adding hydrochloric acid to react to generate orthosilicic acid precipitates attached to the surfaces of the silicon carbide fibers, and hydrolyzing the orthosilicic acid precipitates athigh temperature to generate silicon dioxide attached to the surface of the silicon carbide fiber, thereby finally preparing the modified silicon carbide fibers, and finally blending and pressing themodified silicon carbide fibers and aluminum alloy solution to obtain the aluminum alloy automobile exhaust pipe. The prepared aluminum alloy automobile exhaust pipe is high in bending strength and wide in application prospect.

The invention relates to the field of lithium-ion batteries, and discloses a novel lithium-ion battery pack and a preparation method thereof. The mechanism comprises an insulating shell, wherein a first lug groove and a second lug groove are arranged in the bottom of the insulating shell; a first sliding block and a second sliding block which are opposite to each on the front and the back are also arranged in the insulating shell; the back surfaces of the first sliding block and the second sliding block are connected with the inner wall of the shell by springs respectively; the first sliding block and the second sliding block can slide to be close to each other or far away from each other; a valve capable of being opened and closed is arranged at the top of the insulating shell; a space between the first sliding block and the second sliding block is filled with conductive bead bodies; and when the space between the first sliding block and the second sliding block is filled with the conductive bead bodies, any adjacent conductive bead bodies are in tight contact. By adopting the novel lithium-ion battery pack, maintenance, disassembly and assembly of the lithium-ion battery pack are facilitated.

Provided are methods of using compounds, pharmaceutical compositions, cosmetic and dermatological compositions or nutritional supplement compositions, comprising omega-3 very-long-chain polyunsaturated fatty acids (n-3 VLC-PUFAs) and/or their endogenous hydroxylated derivatives thereof, known as elovanoids for promoting the protection, prevention, and treatment of disturbances of the eye surface, such as dry eye and inflammatory conditions of the eye surface.