Abstract:
The present invention relates to a bio chip and a method for fabricating the same. Specifically, the present invention relates to a bio chip having micro-channels which can generate a micro-flow of a passive pump type based on the principle of capillary by forming hydrophilic pillars inside the micro-channels. Provided are micro-channels of a bio chip, configured to include a lower plate, a hydrophobic upper plate, and hydrophilic pillars, wherein a hydrophilic upper plate is replaced with the hydrophobic upper plate after the hydrophilic pillars are formed.
Abstract:
본 발명은 미세노즐을 이용하여 금속, 고분자, 복합재료 등의 3차원의 마이크로 또는 나노 스케일 미세구조체를 기판 위에 직접 형성시키되 마이크로파 가열을 국부적으로 적용하여 임의의 위치에 선택적으로 미세구조체를 순간적으로 합성하는 방법 및 장치에 관한 것이다. 본 발명에 따른 미세구조체 제조 방법 및 장치에 따르면, 대부분의 재료에 대해 적용하여 마이크로파 가열에 의한 고온의 열이 국부적으로 가해져 순간적인 합성으로 기판 위에 직접 3차원 미세구조체를 형성하게 되므로, 미세구조의 재료가 되는 나노입자 등을 미리 잘 분산된 콜로이드 형태로 만들어야 하는 어려움이나 미세노즐의 막힘 문제 등을 원천적으로 방지할 수 있다.
Abstract:
The present invention relates to a field-emission X-ray source which emits electrons through a field which is formed through the potential difference between a cathode unit and a gate unit arranged apart from the cathode unit. More particularly, the present invention relates to a field-emission X-ray source of the present invention which includes: a transistor which is connected to the cathode unit and controls the amount of electron emission in the cathode unit by transmitting a predetermined current according to a voltage of a gate terminal to the cathode unit; an photoelectric device which is electrically connected to the gate terminal of the transistor and controls the voltage of the gate terminal by generating a voltage using light irradiated from a predetermined light source; and an anode for generating X-ray by being impacted by the electrons emitted from the cathode unit.
Abstract:
The present invention relates to a method and an apparatus for selectively synthesizing fine structures on arbitrary locations by directly forming three dimensional micro- or nano-scale fine structures such as metals, polymers, composite materials, and the likes on a substrate and locally applying microwave heat. By following the method and the apparatus for synthesizing fine structures according to the present invention, the method and apparatus are applied to most materials, and high temperature heat is locally applied by microwave heat so that the three dimensional fine structures can be directly formed on the substrate by flash synthesis. Therefore difficulties of making nanoparticles, which will become materials for the fine structures, into well dispersed colloid forms, or problems such as blockage of a micro nozzle can be fundamentally prevented. [Reference numerals] (AA) Antenna; (BB) Synthetic raw materials; (CC) Location change; (DD) Microwave; (EE) Fine structures; (FF) Substrate
Abstract:
본 발명은 고출력의 마이크로파를 도파관으로부터 손실없이 화학반응기로 투입하는 마이크로파 반응기 및 그 방법에 관한 것이다. 본 발명의 일면에 따른, 마이크로파 반응기는, 한 쪽 끝이 막혀있는 도파관의 다른 쪽 개방된 입구로부터 유입되는 마이크로파를 화학 반응기로 투입하기 위한 마이크로파 모드변환 투입기를 포함하고, 상기 도파관의 장축 방향에 수직하게 동축 도파관 형태로 결합되는 상기 마이크로파 모드변환 투입기는, 동축을 가로지는 유전체 윈도우와 상기 유전체 윈도우의 중심부를 관통하는 도체 막대를 포함하며, 상기 도체 막대가 상기 도파관의 막혀있는 끝단으로부터 일정 거리에 위치하도록 설치되고, 유입된 상기 마이크로파를 상기 마이크로파 모드변환 투입기에 의해 TE 모드에서 TEM 모드로 변환하여 모드 변환된 마이크로파가 상기 유전체 윈도우를 통과해 상기 화학 반응기 내의 반응물에서 흡수되도록 한다.
Abstract:
PURPOSE: A waveguide capable of shifting phases of microwaves is provided to supply a waveguide of which length is short and to prevent friction between a conductor plate and the waveguide, thereby preventing damage of the waveguide which is caused by friction heat or spark according to the friction. CONSTITUTION: A waveguide(1) capable of shifting phases of microwaves includes a body unit(10) which has both opened sides, and which a microwave that flows into one side penetrates; a conductor plate(20) which is arranged on one position inside the body unit to be rotatable in the axial direction which is predetermined as a center; and an operation generating unit(30) which is connected to the upper side of the body unit, and which has the lower side which is connected to the conductor plate to rotate the conductor plate in the axial direction which is predetermined as the center.
Abstract:
PURPOSE: A microwave reactor using a microwave is provided to improve reaction rate and yield in a chemical reactor by putting high power microwaves from a wave guide into a chemical reactor without energy loss. CONSTITUTION: A microwave reactor using a microwave comprises a microwave mode conversion input device(130). The microwave mode conversion input device inputs microwave into a chemical reactor. The microwave mode conversion input device is vertically combined with the wave guide(120). The microwave mode conversion input device comprises a dielectric window(131), and a conductor rod(132) which penetrates the core part of a dielectric window. The conductor rod is installed and spaced apart at a specific distance from the closed end of the wave guide. A TE mode of input microwaves is converted into a TEM mode by the microwave mode conversion input device and the converted microwaves passes through the dielectric window and are absorbed into a reactor in the chemical reactor. [Reference numerals] (AA) Microwaves; (BB) Resultant product
Abstract:
PURPOSE: An x-ray tube, an anode part thereof, and a manufacturing method of the anode part are provided to discharge internal gas by forming a vacuum exhaust path and a vacuum exhaust pipe. CONSTITUTION: A cathode part comprises electron emitter which emits an electronic beam. A grid(160) has a cylinder structure. Vacuum exhaust paths(215,220) are formed in a body of the anode part. A vacuum exhaust pipe(230) is connected to the vacuum exhaust paths. The vacuum exhaust pipe makes the inner side of an x-ray tube vacuous. [Reference numerals] (AA) Electron beam; (BB) X-ray