Abstract:
A cooling device for a fuel cell is provided to prevent the condensation of discharged gas, to minimize constitution, to reduce the amount of supplied power and to improve the cooling efficiency to condensed liquid and cooling liquid. A cooling device for a fuel cell comprises an aqueous solution tank(10) which is supplied with liquid fuel from a fuel tank(11); a water condensation coil(20) whose one end is extended to the inside of the aqueous solution tank and which condenses the ventilation gas flown from the cathode of a stack into the aqueous solution tank to generate condensed water; and a cooler(30) which is connected with the other end of the water condensation coil to cool the condensed liquid flowed on the inside of the water condensation coil.
Abstract:
나노 복합 구조체의 제조방법 및 이에 의해 제조된 나노 복합 구조체가 제공된다. 상기 나노 복합 구조체의 제조방법은, 기재를 준비하는 단계; 금속 망 구조체를 상기 기재의 상방에 위치시키는 단계; 및 상기 금속 망 구조체가 위치한 상기 기재를 플라즈마 처리하는 단계;를 포함한다. 상기 제조방법에 의하여, 대면적에 걸쳐 균일한 나노 패턴 구조를 갖는 나노 복합 구조체를 제조할 수 있다. 상기 나노 복합 구조체는, 표면에 나노 패턴을 형성하는 복수개의 제1 돌출부를 포함하는 기재; 및 상기 제1 돌출부 중 적어도 일부의 단부에 배치된 무기 입자;를 포함한다.
Abstract:
According to an embodiment of the present invention, a method of manufacturing a low-reflection surface body (30) includes a first step of preparing material (10) including a column structure (11) at a surface; a second step of preparing aluminum surface-material (20) by processing the column structure (11) to have an aluminum film (21); and a third step of oxidizing the aluminum surface-material (20) to form a nanoflake layer (31) to manufacture a low-reflection surface body (30) having a dual projection structure (33). The method of manufacturing the low-reflection surface body (30) totally and internally reflects and absorbs wavelengths in ranges of visible ray and infrared ray regions to provide the low-reflection surface body (30) which is a surface able to remarkably reduce reflection rate and can be applied in a surface of a photovoltaic element or surface processing of various displays by a simple, low-cost, and eco-friendly process.
Abstract:
A generating device and a vibration generating assembly including the same are provided to increase the weight of a vibrating part for resonating the generating device while minimizing the volume. A base(100) is combined in a vibrating device. A sliding unit(200) is slidingly combined while covering the base. A guide unit(300) connects the base and the sliding unit. The guide unit performs guidance to generate a sliding operation at a direction intersecting an axial line of a base when the vibrating device vibrates. A generating unit(400) is formed between the base and the sliding unit and generates electrical energy by the sliding of the sliding unit. A mounting unit is formed in the sliding unit and mounts the weight unit for controlling the weight of the sliding unit.