Abstract:
PURPOSE: A method is provided to obtain a coil having a circular cross section and uniform characteristics. CONSTITUTION: A method is characterized in that a coil is manufactured by an isotropic etching and a heat treatment of photosensitizer. The lower portion of the coil is manufactured by an isotropic etching process, and the lower portion of the coil is manufactured by a heat treatment of photosensitizer. The upper portion and the lower portion are connected with each other so as to form a coil wound on a cylinder constituted by a photosensitizer.
Abstract:
PURPOSE: A polygonal mirror used as a cooling fan of a laser printer is provided to cool an optical system by using a flow of air created in the wings attached to a polygonal mirror. CONSTITUTION: A polygonal mirror(1b) used as a cooling fan of a laser printer includes a structure attached to a rotating mirror in order to change a flow of air. A cooling device is operated by receiving power from a power source, which is used for rotating the polygon mirror(1b) for a scanning. A box, in which an optical system is installed, includes an air intake hole. A filter paper is adhered to the air intake hole of the box. The optical system is cooled by creating a flow of air from a rotation of the wings. The air intake hole and an air exhausting hole include the filter paper in order to prevent the optical system from being contaminated.
Abstract:
본 고안은 합성수지에 의해 관을 형성하여 시신을 매장할시에 사용하는 합성수지 관의 내부를 황토와 맥반석과 백회석의 혼합액을 도장하여 사용하는 항균, 방충, 수맥차단 합성수지 관에 관한 것으로, 항균, 방충, 수맥차단 합성수지 관의 내부 면을 황토와 맥반석과 백회석의 배합도료를 일정의 두께로 도장하여 관으로 사용되게 한 것이다.
Abstract:
본 발명은 합성수지에 의해 관을 형성하여 이를 관매장시 관을 보호하는 외관으로 사용하거나 시신을 직접 안치하는 관으로 사용하되 통기공 등에 의해 벌레나 나무뿌리의 침입을 막으면서도 내부의 시신이 분해되어 유탈될 수 있게 한 합성수지관에 관한 것으로, 합성수지에 의해 함체상의 몸체(1)를 형성하고 그 상부에 동일재질의 덮개(2)를 결합하여 결합볼트(3) (3')로 조립하되, 몸체(1)의 저면에는 통기공(4) (4')을 형성하여 망판(5)이 구성된 필터(6)를 조립식으로 결함하고, 외측에는 고리(7)를 형성하여 체인(8)으로 비석판(9)과 연결하며, 상단에는 밀폐턱(10)과 결합공(11) (11')을 형성하여 덮개(2)의 밀폐홈(12)과 결합공(13) (13')이 일치되게 하여 외관으로 사용되게 한 것이다.
Abstract:
PURPOSE: A sol-gel process for preparing silica spheres is provided to obtain silica spheres having a uniform size which is used in constructing three-dimensional crystals, and to improve the reproducibility . CONSTITUTION: The sol-gel process for preparing silica spheres uses an order of adding additives different from the order currently used in conventional sol-gel processes to improve the reproducibility. Particularly, H2O and TEOS(tetraethoxysilane) are preliminarily added to ethanol and then the mixture is stirred for 10 minutes. Finally, NH4OH is added to the resultant mixture. In other words, the order of adding TEOS and NH4OH is reverse compared to conventional sol-gel processes.
Abstract:
PURPOSE: An SEI(secondary electron image) detector signal input circuit is provided to acquire image of digital electron microscope by using an AD/DA converter and a simple low frequency filter. CONSTITUTION: An SEI detector signal input circuit comprises a connection between external scan control input units(3a,3b) of an electron microscope and digital-analog converting channels(1a,1b) of an analog-digital/digital-analog converter; a connection between the SEI detector signal of the electron microscope and an SEI detector signal converting circuit input unit(2b); and a connection between an analog-digital converting input unit(1c) and an SEI detector signal converting circuit output unit(2a).