9results about How to "Control swelling" patented technology

The invention discloses a dependency-free anti-aging sleep-aiding preparation and a preparation method thereof, and relates to the technical field of preparations, the anti-aging sleep-aiding preparation comprises an ellipsoidal shell and an ellipsoidal core wrapped in the ellipsoidal shell, the ellipsoidal core comprises an anti-aging agent layer, a water absorption expansion layer and a sleep-aiding agent layer which are stacked in sequence, the water absorption expansion layer protrudes at the two ends of the ellipsoidal core to form small water diversion columns; small water inlet holes are formed in the two ends of the ellipsoidal shell and are connected with small water diversion columns; a plurality of first release holes and a plurality of second release holes are formed in the circumferential surface of the ellipsoidal shell, the plurality of first release holes lead to the anti-aging agent layer, and the plurality of second release holes lead to the sleep aid layer. Through the special structural design of the ellipsoidal shell and the ellipsoidal core, isolated coexistence of anti-aging and sleep-aiding components and controllable release of the anti-aging and sleep-aiding components are achieved, so that the dual effects of anti-aging and sleep-aiding can be achieved, and it is guaranteed that the drug effect is continuously exerted.

The invention provides a polyacrylonitrile precursor, a carbon fiber and a preparation method thereof. The preparation method of the polyacrylonitrile precursor adopts wet spinning and comprises the steps of coagulating bath and hot water drafting, the hot water drafting at least comprises three times of hot water drafting, the swelling degree of the fiber after the second time of hot water drafting is 110-155%, and the total drafting multiplying power of the hot water drafting is 1.5-6.5 times. The modulus of the polyacrylonitrile precursor is 130 to 160 cN / dtex; the breaking strength of the polyacrylonitrile precursor is 5.80 cN / dtex to 6.50 cN / dtex; the average number of broken filaments per 10000 meters of the polyacrylonitrile precursor is not more than 15; the dispersion coefficient of the fineness of the polyacrylonitrile precursor is 3-5. The invention has the advantages of oil demulsification, less deterioration, high mechanical properties of the precursor, small fineness dispersion coefficient, and less broken filaments and broken filaments in a graphitization furnace.

The invention discloses a modified graphene film packaged slow-release fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. Specific monomers including maleic anhydride, acrylamide and methyl methacrylate are adopted as raw materials for emulsion polymerization, graphene oxide is added in situ for reaction in the polymer emulsion preparation process, and graphene oxide is further reduced to prepare the modified graphene film packaging material. After the potassium nitrate fertilizer is coated, the fertilizer with a slow release function is finally obtained. The product has comprehensive properties such as swelling property, water solubility, mechanical property and the like through the technical means, so that the finally prepared modified graphene oxide film packaged slow-release fertilizer has an ideal slow-release effect.

The embodiment of the present application provides a restraining device, which can improve the use performance of the restraining device. The restraining device is applied to a battery monomer, and the restraining device comprises: a plurality of groove structures arranged at intervals along a first direction, wherein the groove structure comprises opposite first and second surfaces perpendicular to the first direction; a plurality of air bag structures, wherein the air bag structure comprises a first air bag structure and a second air bag structure, at least part of the first air bag structure and the second air bag structure is accommodated in the groove structure, one side of the first air bag structure facing the first surface is fixedly connected with the first surface, one side of the second air bag structure facing the second surface is fixedly connected with the second surface, the plurality of air bag structures are arranged in one-to-one correspondence with the plurality of groove structures, a first accommodating cavity is formed between the first air bag structure, the second air bag structure and the groove structure, and at least part of the battery monomer is accommodated in the first accommodating cavity.

The utility model discloses a leakproof transportation liquid tank sealing cover, which belongs to the technical field of transportation liquid tanks and comprises a liquid tank body, a tank opening positioned at the top of the liquid tank body and a sealing cover covering the top of the tank opening, a protective shell is fixed at the top of the sealing cover, and a turntable is rotatably mounted in the protective shell and attached to the top of the sealing cover. The top of the rotating disc is provided with plane threads, clamping hooks are evenly arranged on the outer side of the protection shell in a sliding mode, and one ends of the clamping hooks extend into the protection shell and are in threaded connection with the top of the rotating disc. According to the utility model, the turntable is rotationally mounted at the top of the sealing cover, the plane thread is arranged at the top of the turntable, and the turntable is in threaded connection with the clamping hook on the protective shell through the plane thread and is matched with the limiting ring on the outer side of the tank opening for use, so that multi-point extrusion can be carried out on the outer side of the sealing cover in the sealing process; the pressure on the sealing cover is balanced, and the sealing effect is improved.

This invention discloses a deep foundation pit support structure on a slope, comprising: a vertically arranged transverse cast-in-place pile group; longitudinal cast-in-place pile groups at both ends of the transverse cast-in-place pile group near the bottom of the slope; two longitudinal cast-in-place pile groups perpendicular to the sides of the transverse cast-in-place pile group; both the transverse and longitudinal cast-in-place pile groups consist of several vertically arranged cast-in-place piles; the tops of the transverse cast-in-place pile group and the two longitudinal cast-in-place pile groups are connected to each other by a capping beam; the capping beam has a bracing at one end of its two opposite short sides and the end furthest from its long side; corner braces are provided between the two short sides and the long side of the capping beam; one end of each corner brace is connected to the middle of the short side of the capping beam, and the other end is connected to the long side of the capping beam; the end faces of the two short sides of the capping beam are connected to one end of an end support through a head plate; the other end of the end support cooperates with a support seat set in the slope; the end support has a set inclination angle; and oblique end supports are provided on the capping beam to transmit eccentric loads and maintain the external stability of the foundation pit.

The invention provides a data cleaning method and device, equipment, a storage medium and a program product, and can be applied to the technical field of big data and financial science and technology. The method comprises the steps that in response to received multiple candidate database requests, screening is conducted in the multiple candidate database requests, target database requests matched with batch job characteristics are obtained, and the batch job characteristics indicate operation conditions of database requests to be screened; based on the target database request and a global view, screening is carried out in the multiple candidate temporary tables to obtain a target temporary table, and the global view indicates the dependency relationship of the multiple candidate temporary tables; and in response to a received completion instruction of the target database request, executing a cleaning operation on the target temporary table.

The utility model discloses an auxiliary sheath for bladder tumor monolith resection, which comprises a handheld part with a cylindrical structure, a sheath cylinder with a strip-shaped structure is mounted at the front end of the handheld part, and holding handles are fixedly mounted on the left side and the right side of the handheld part. An endoscope is fixedly installed in the handheld part and connected with an observation eyepiece fixedly installed outside the rear end of the handheld part, the handheld part is connected with the endoscope sheath cylinder through a connecting piece, and the connecting piece is fixedly connected with the endoscope sheath cylinder. According to the auxiliary endoscopic sheath for the bladder tumor monolith resection, novel structural design is adopted, a distraction mechanism is arranged, in the using process of the auxiliary endoscopic sheath, a doctor rolls a connecting pull rope by rotating a rolling column, at the moment, an expansion plate is pulled through the connecting pull rope, the expansion plate is expanded outwards, and therefore tissue in the body of a patient is distraction; and normal operation of doctors is prevented from being influenced.

The utility model discloses a battery pack assembly and a vehicle, the battery pack assembly comprises a sealing basin body, a main beam body, a movable beam body and a locking device, and a battery cell accommodating cavity is formed in the sealing basin body; the main beam body is arranged in the battery cell accommodating cavity and extends in a first direction; the movable beam body extends in the second direction and is movably arranged on the main beam body, and a contact surface suitable for abutting against the battery cell is formed on the movable beam body; and the locking device is arranged on the movable beam body and is suitable for locking the movable beam body and the fixed beam body. According to the battery pack assembly disclosed by the utility model, proper pressure can be provided for the battery cell by adjusting the position of the movable beam body, so that the expansion of the battery cell in the use process is effectively controlled, the performance of the battery pack assembly is improved, the operation is simple and convenient, the cost is low, and meanwhile, after the movable beam body is moved to a proper position, the locking device is arranged. And the locking device can lock the movable beam body and the main beam body, so that the movable beam body can continuously provide pressure for the battery cell.