3results about How to "Lower phase transition temperature" patented technology

The utility model relates to the field of optical fiber communication, and disclose a kind of optical fiber communication device of conference communication system, including shell and optical fiber communication body, shell interior is equipped with optical fiber communication body, shell one side dustproof heat dissipation structure, dustproof heat dissipation structure is equipped with liquid cooling structure in shell, shell is away from dustproof heat dissipation structure and is equipped with a set of equidistant distribution's heat dissipation hole two on the other side of the optical fiber communication body, there is dust screen in shell outside one side with heat dissipation hole two and every heat dissipation hole two is fixedly connected, adopt liquid cooling structure and heat dissipation fan collaborative heat dissipation mode, effectively solved the problem of traditional device heat dissipation capacity, in liquid cooling structure, fatty acid coolant phase transition temperature in heat absorption box is low, can rapidly absorb heat gasification when equipment temperature rises, backflow after cooling liquefaction by condenser pipe, form closed cycle continuous heat dissipation, when temperature exceeds preset value, heat dissipation fan starts, and liquid cooling system collaborative work, accelerate heat conduction and discharge.

This invention belongs to the field of waterborne coating preparation, specifically relating to a waterborne automotive coating and its preparation process. The waterborne automotive coating is prepared through the following steps: preparation of a waterborne dispersion, synthesis of a polyurethane prepolymer waterborne dispersion, synthesis of a waterborne polyurethane dispersion, pre-emulsification, initiation and seed emulsion activation, and mixing. This coating possesses the protective, decorative, and weather-resistant properties of traditional high-end waterborne automotive coatings. It allows the coating to achieve micro-repair after minor scratches by heating or leaving it at room temperature. It exhibits high compatibility with existing automotive painting lines and can dynamically adjust the absorption and reflection of sunlight (especially near-infrared light) according to ambient temperature and sunlight intensity.

This invention discloses a self-controlled in-situ artificial anus, comprising an intestinal tube, a fixing structure, a chassis, a pressure sensor, a self-controlled intestinal switch, and a meter-type control unit. The self-controlled intestinal switch is fixed to the inner wall of the lower end of the intestinal tube. The self-controlled intestinal switch is a cone composed of multiple thin sheets of organometallic composite material, with the apex of the cone facing downwards and the circular base facing upwards. The circular base is fixed to the inner wall of the lower end of the intestinal tube. Each thin sheet of organometallic composite material is fan-shaped. Each thin sheet of organometallic composite material uses medical-grade silicone rubber as a matrix, and nickel-titanium shape memory alloy wire is coiled into a serpentine shape and embedded in the medical-grade silicone rubber matrix. The nickel-titanium shape memory alloy wire is connected in parallel at both ends of the signal transmitter and receiver. This invention is convenient to use, allowing patients to avoid artificial anuses and control defecation independently, eliminating the need for cleaning and care of artificial anal bags, reducing the inconvenience and economic costs of daily life for patients, and the materials used have good biocompatibility and minimal impact on the human body.