Abstract:
PURPOSE: A real time measuring device of micro particle size distribution is provided to measure micro particle per size in real time by using multiple concentration measuring devices and optical measurement systems. CONSTITUTION: A real time measuring device of micro particle size distribution comprises an aerosol number concentration meter(200) and a data processing unit. The aerosol number concentration meter measures the concentration of the inflow minute particles. The data processing unit computes a size distribution of inflow micro particle using the information outputted from the aerosol number concentration meter. A minute particle controlling element(100) controls the size of the minute particle passed through at least one of multiple aerosol number concentration meters. The minute particle controlling element comprises one or more mesh screens.
Abstract:
PURPOSE: An inner surface treatment method of certified reference gas mixture container using a barrel polishing process is provided to prevent scratch due to partial shock generated during polishing using trimethylated silica. CONSTITUTION: An inner surface treatment method of certified reference gas mixture container using a barrel polishing process comprises followings. The long axis of a cylinder is rotated by a rotary shaft and is ground in order to maintain the horizontality of a long axis of an aluminium cylinder after putting abrasive and grindstone into the aluminium cylinder. The abrasive contains oleic acid 1~15wt.%, trimethylation silica 1~15wt.%, surfactant 1~10wt.%, aminoalcohol 0.005~0.5wt.%, and deionized water 60~95wt.%. The ratio of the volume of the grindstone and the abrasive and the volume of the aluminium cylinder is 0.1~0.3 : 0.2~0.3, respectively.
Abstract:
PURPOSE: A coherent anti-stokes Raman scattering endoscope applying a spectrally encoding method is provided to obtain the same effect as a high speed scanning by equally forming spectrum distribution of a pump light and a stoke light. CONSTITUTION: A stoke light optical fiber(11) transmits a stoke light with an arbitrary frequency band generated from a stoke light source. A pump light optical fiber(12) transmits the pump light to the pump light source. The stoke light optical fiber and the pump light optical fiber are separated with a constant distance. A collimation lens(20) collimates the stoke light and the pump light. One diffraction grating(30) forms the spectrum distribution of the stoke light and the pump light equally. A reflective mirror(40) includes a dichroic reflector for reflecting CARS(Coherent Anti-strokes Raman Scattering) light and a total reflector for totally reflecting the pump light. An objective lens(50) connects the pump light and the stoke light to a sample. A CARS light transmitter(60) transmits the CARS light to a spectroscope.
Abstract:
본 발명은 단일 편광자 초점 타원계측기(single-polarizer focused-beam ellipsometer)에 관한 것으로, 보다 상세하게는 하나의 편광용 광분할기가 편광 발생장치, 광분할기 및 편광 검출장치의 역할을 하도록 간편화된 구조를 갖으며 다중 입사면 측정을 다중 입사각에 적용하는 측정방법을 채택함으로써 측정 정밀도가 향상된 초점 타원계측기에 관한 것인데 시편에 의해 반사된 빛의 편광상태 변화를 측정함으로써 시편의 광물성, 즉 박막 시편의 경우에는 박막의 두께 및 굴절률 등에 대한 정확한 정보들을 분석해낼 수 있는 측정기술이다. 이를 위하여 본 발명의 타원계측기는 광원(light source); 상기 광원으로부터 방출된 빛을 편광된 빛으로 분할하는 편광용 광분할기(polarizing beamsplitter); 상기 편광용 광분할기로부터 분할된 일부의 빛을 굴절시켜 시편에 집중시켜 조사시키는 대물렌즈(objective lens); 상기 시편으로부터 반사된 후 상기 대물렌즈 및 상기 편광용 광분할기를 통과한 빛을 수광하는 광검출기(photodetector); 상기 광검출기에 의해 검출된 빛의 세기(light intensity)를 다중 입사면 경로를 따라 상기 광검출기의 단위소자(pixel)에 해당되는 값으로 보정하여 연산처리하는 연산처리장치(central processing unit)를 포함하는 것을 특징으로 한다. 단일, 편광자, 초점, 타원계측기, 편광용 광분할기
Abstract:
A bio-sensor is provided to detect the existence and the concentration of various bio-materials such as genes and proteins to be measured efficiently and electrically. A bio-sensor in which a plurality of interdigitated electrode sensor units, each of which is independently operated, is integrated in a substrate comprises a first and a second electrodes formed to be spaced apart from one another with a multi-line shape and a biomolecule receptor fixed on a sensor which is fixed on the substrate exposed between the first and second electrodes and specifically bound to biomolecules, and is characterized in that the biomolecule is analyzed by the number of the multi-line electrode sensor units electrically conducted by conductive particles directly bound to biomolecules captured by the biomolecule receptor or conductive particles bound to the biomolecules via the biomolecule receptor. A method for analyzing biomolecules comprises the steps of: (a) contacting a sample solution including the biomolecules to be measured with the bio-sensor to capture the biomolecules in the sensor-fixed biomolecule receptor fixed on the substrate exposed between the first and second electrodes of the multi-line electrode sensor units independently operated to one another; (b) contacting the biomolecules bound to the sensor-fixed biomolecules receptor with the particle fixed biomolecule receptor in which the conductive particles are fixed to bind the conductive particles to the biomolecules; (c) measuring the electric conductivity of the bio-sensor; and (d) converting the electric conductivity into the concentration of the biomolecules in the sample solution from the relation between the rate of the sensor showing the change of the electric conductivity before and after the sample solution contact and the concentration.
Abstract:
An apparatus and a method for measuring gas absorption characteristic of a cryogenic pump absorption panel are provided to improve an exhaust method of a cryogenic pump by estimating exhaust capability of the cryogenic pump. An apparatus for measuring gas absorption characteristic of a cryogenic pump absorption panel includes an electronic gun(210), a sensor(240), and a calculating unit. The electronic gun is installed in a chamber and inputs an electronic beam to the absorption panel. The sensor is installed in the chamber and detects an ion flying time and the amount of ion output from the surface of the absorption panel. The calculating unit determines a sort of gas, absorbed in the absorption panel, and calculates the amount of the gas from the ion flying time and the amount of ion.
Abstract:
PURPOSE: A similarity hearing learning method is provided to change specific frequency of sound into physical magnetic pole and to offer it to an auditory disabled person. CONSTITUTION: A general person hears sound from a speaker(S110). A feeling storage means receives feelings in which the general person feels and records it(S120). A similarity hearing converting mean changes the sound into frequency. The similarity hearing converting mean changes the frequency into physical magnetic pole corresponding to similarity hearing(S130). A similarity auditory learning means is used for learning the feelings corresponding to the similarity hearing to an auditory disabled person(S140).
Abstract:
PURPOSE: A guide device and a system for the blind, a guide method using the same, and a recording medium thereof are provided to inform the blind of background image or location information. CONSTITUTION: A guide device for the blind comprises a communication unit, an image photographing unit(200), a recognition unit, and a guide unit(400). The communication unit transmits and receives information necessary to the blind. The image photographing unit takes a photograph of a background image of surrounding and obtains video information. The recognition unit recognizes the location of the blind based on the signal of the communication unit. The guide unit provides the information of the background image to the blind and guides the blind.
Abstract:
PURPOSE: A single crystal manufacturing method, a single crystal manufacturing apparatus, and a single crystal are provided to be single crystallized while an original component is maintained by preventing a content of a sample from being escaped by partially or completely covering an amorphous or polycrystalline sample by using a graphene. CONSTITUTION: A graphene layer partially or completely covering an amorphous or polycrystalline sample is formed(S100). The amorphous or polycrystalline sample is floated in the air in a treatment container(S110). Provided is a nitrogen-containing gas decomposed by using plasma for the treatment container(S120). Energy is applied to the sample(S130). The sample is crystallized by getting heat(S140).
Abstract:
PURPOSE: A photoelectric device and a forming method thereof are provided to fundamentally eliminate deformity due to lattice mismatch by forming a thick GaN(Gallium nitride) layer on different kinds of substrates. CONSTITUTION: A first semiconductor layer(13) is formed on a substrate(12). A second semiconductor layer(15) is formed on a semiconductor layer. An active layer(14) is interposed between the first semiconductor layer and the second semiconductor layer. An active layer has a multiple quantum well structure. A first contact hole(18) exposes the first semiconductor layer. A first electrode(16) is arranged in a first contact hole.