6results about How to "Good quality" patented technology

This invention provides a molded rice seedling tray with a seedling-strengthening agent and acid-adjusting properties, and its preparation method, belonging to the field of rice seedling technology. A method for preparing a molded rice seedling tray with a seedling-strengthening agent and acid-adjusting properties includes the following steps: (1) mixing agricultural and forestry waste with sulfur powder and fermenting to obtain acid-adjusting fermented material; (2) mixing a seedling-strengthening agent, zeolite powder, and acidic river silt to obtain a functional masterbatch; (3) mixing the acid-adjusting fermented material, the functional masterbatch, ammonium sulfate, and sodium carboxymethyl cellulose to obtain a pressed material; (4) pressing the pressed material into shape to obtain a molded rice seedling tray with a seedling-strengthening agent and acid-adjusting properties. This invention successfully solves the four core problems in soilless rice seedling cultivation: difficulty in acid adjustment, difficulty in fertilizer transport, high cost, and difficulty in industrialization, achieving a win-win situation for both ecological and economic benefits, and possessing extremely high industrial application value and promotion prospects.

This invention discloses a system and method for the comprehensive utilization of liquid nitrogen cold energy, including a liquid nitrogen storage tank, a vaporizer, a fan, an insulation cover, a temperature sensor, and an intelligent control unit. The vaporizer has a liquid nitrogen channel with a liquid nitrogen inlet and a nitrogen outlet. The outlet of the liquid nitrogen storage tank is connected to the liquid nitrogen inlet of the vaporizer via a first pipe, which is equipped with a regulating valve. The nitrogen outlet is connected to the grain silo via a second pipe. The insulation cover surrounds the vaporizer. The fan delivers ambient air into the insulation cover, allowing indirect heat exchange between the air and the vaporizer. After cooling, the air is connected to the grain silo via a third pipe. The temperature sensor is installed on the second and / or third pipes. The intelligent control unit is electrically connected to the temperature sensor, the regulating valve, and the fan. Liquid nitrogen is vaporized by the vaporizer, and the air is cooled after heat exchange within the insulation cover. Operating parameters can be automatically adjusted according to grain conditions and climate, achieving energy-saving and intelligent temperature and atmosphere control in the grain silo.

This invention belongs to the field of cushioning packaging technology, and provides a high-performance composite plant fiber foam material, its preparation method, and its application. In the preparation process, thermally expandable microspheres are first added to a cross-linked fiber mixture, and an initial bubble network is formed through high-speed shearing and stirring. After filtration, the microspheres are heated in an oven to trigger expansion, and the resulting supporting force compensates for drying shrinkage. The material obtained by this process has low density, stable cell structure, excellent cushioning performance and flame retardancy, and the raw materials used are biodegradable, making it a green and environmentally friendly cushioning packaging material suitable for packaging applications such as express delivery and electronic products.

This invention relates to the field of information display technology, and discloses a conference screen sharing method and related equipment based on frame buffering and incremental updates. The method includes managing and processing the frame buffer resources of a remote host and a local host; using incremental update technology, the remote host and local host identify the changed parts of the screen content after frame buffer resource management and processing, and generate image difference information; and transmitting the image difference information between the remote host and the local host to complete the conference screen sharing based on frame buffering and incremental updates. This invention, by managing and processing the frame buffer resources of the remote host and local host, can effectively integrate and optimize the utilization of screen resources; the use of incremental update technology allows the system to identify and transmit only the changed parts of the screen content, rather than the entire screen image. During the conference screen sharing process, only the changed image areas are captured and transmitted, thereby significantly reducing the amount of data that needs to be transmitted.

The application discloses a modular assembly method for a superconducting feeder system of a fusion device and belongs to the technical field of fusion devices. The method assembles the superconducting feeder system by using a superconducting feeder system assembly and installation integrated platform, and comprises the following steps: cleaning and appearance inspection; posture adjustment and fixation; measurement, position fitting, reverse processing of a core wire and precise butt joint of a cooling pipe of a superconducting joint; construction of a cleaning area, indium pressing and resistance testing, welding and testing of each cooling pipe; insulation winding and testing of the periphery of the cooling pipe; installation of insulation components, support components and cold screen jump pipes, welding and testing of the cold screen jump pipes; installation of a connecting pipe section, welding and testing of a current lead tank; comprehensive cleaning and packaging protection, and transportation to a hoisting preparation area. The application has the advantages of high adaptability, high installation precision and effective control of a clean environment.

The application discloses a telephoto lens, belonging to the technical field of lenses, comprising a first lens group with positive refractive power, a second lens group with positive refractive power, and an aperture between the first lens group and the second lens group, and the second lens group is moved on the optical axis to focus. The above-mentioned front group is essentially composed of three lens components, the first lens component is a positive lens arranged in sequence from the object side along the optical axis, with a convex surface facing the object side, the second lens component is composed of at least one lens, with positive refractive power, and the third lens component is a negative lens with a concave surface facing the image side; and the second lens and the third lens are glued together. The rear group comprises: a fourth lens component, which is a double-concave negative lens arranged in sequence from the object side along the optical axis; and a fifth lens component. The telephoto lens is designed by adopting eleven spherical glass lenses, so that the cost is greatly reduced and miniaturization is realized.