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경천수,성기영,이영락,김대건,곽종훈,최옥식 嶺南大學校 基礎科學硏究所 1998 基礎科學硏究 Vol.18 No.-
We designed and fabricated a reflection-type holographic interference filter in a dichromated gelatin film. The relationship between center wavelength and recording angles was derived by wsing coupled wave theory in detail. The variations of center wavelength of the filter were predicted theoretically measured in terms of recording angles.
Spot Size Detection Method를 위한 Computer Generated Interferogram
경천수,성기영,곽종훈,최옥식,최현범,송재봉 嶺南大學校 基礎科學硏究所 1996 基礎科學硏究 Vol.16 No.-
A simple method to fabricate computer generated interferogram is presented by using personal computer and Laser Printer. We also fabricate a CGH for a spot size detection method and generate a focusing error signals.
경천수,최옥식,성기영,곽종훈 嶺南大學校 基礎科學硏究所 1997 基礎科學硏究 Vol.17 No.-
We fabricate acrylamide photopolymer films as a holographic recording material and investigate photobleaching characteristics. To explain the photobleaching kinetics of photopolymer we adapt two models of the Beer-Lambert law and optical transmittance based on rate equations obtained from a simplified energy-band model. The Beer-Lambert law is good agreement with experimental results in short time but not in long time region. For optical transmittance model on based rate equations the theoretical model explains very well the experimental results in both short and long time region.
정옥영,정연강 중앙대학교 의과대학 의과학연구소 1985 中央醫大誌 Vol.10 No.1
The aim of this thesis is to get the basic data helpful to the health-control by apprehending the factors affecting to the degree of fatigue of middle-aged women. The following conclusion is the data which was collected from August 25, 1984 to September 15, 1984 with using the questionnaire on subjective symptoms of fatigue and I Category of the C.M.I. questionnaire on 187 middle-aged women living in Seoul and conducted with a computer. 1. Sleeping time, education level, occupation, monthly wages, activity in leisure, physical condition, and degree satisfied with marriage are the affirmed factors affecting to the physical syndrome of middle-aged women, but weight, number of children, religion, type of family, cultural level, condition of marriage, and quantity of work are not. 2. Education level, monthly wages, cultural level, physical condition, and degree satisified with marriage are the affirmed factors affecting to the neurosensory syndrome of middle-aged women, but weight, number of children, religion, type of family, sleeping time, activity in leisure, condition of marriage, occupation, and quantity of work are not. 3. Monthly wages, physical condition, and degree satisfied with marriage were affirmed to be deeply related with psychiatric syndrome of middle-aged women, but weight, number of children, religion, type of family, sleeping time, condition of marriage, education level, occupation, cultural level, quantity of work, and activity in leisure were affirmed to have nothing to do with it. 4. Occupation, sleeping time, activity in leisure, physical condition, and degree satisfied with marriage are the affirmed factors affecting to the I Category of C.M.I., but weight, number of children, education level, religion, type of family, monthly wages, cultural level, quantity of work, and condition of marriage are not.
홀로그램 회절격자의 이동에 의한 포토폴리며의 위상 변위측정
성기영,경천수,김휘성,이진국,곽종훈,최옥식 嶺南大學校 基礎科學硏究所 1998 基礎科學硏究 Vol.18 No.-
Holographic recording and erasure kinetics in a home-made photopolymer film are investigated as a function of monomer concentration and spatial frequency. We also measured phase shifts of index grating and absorption grating by moving holographic photopolymer gratings along a direction of grating wave vector.
성기영,최옥식,경천수,곽종훈 嶺南大學校 基礎科學硏究所 1997 基礎科學硏究 Vol.17 No.-
We fabricated photopolymer hologram and explained hologram formation processes. Dynamic self-diffraction oscillation of photopolymer is observed by two wave mixing experiment and it is well explained by the modified Kogelnik's coupled wave equation.
김휘성,성기영,경천수,곽종훈,최옥식,이진국 嶺南大學校 基礎科學硏究所 1998 基礎科學硏究 Vol.18 No.-
We have done researches about porphyrin and polyimide containing metalloporphyrins. The polymer showed interesting optical properties. Polyimide containing meso-tetra(oaminopheny1))porphyrinzinc(Ⅱ) was synthesized in this experiment. Optoeletronic properties were characterized with ultraviolet spectrophotometer and emission spectrophotometer. Changing the contents of porphyrin on polyimide chain produced absorption and emission variations. Energy transfer happened in the polymer chain whan compared with just porphyrin-doped polyimide.
이우범,이원준,권경오,박종천 國立 麗水大學校 환경문제硏究所 2001 環境硏究論文集 Vol.4 No.-
This paper has attempted to provide the latest design approaches, their application site characterization and selecting alternatives for the remediation action of oil contaminated soil. The classification of hazardous materials, the fate of hazardous contaminants in soil and the conventional prediction model and assesment tools were introduced. From the investigation of the trends of soil remediation technology in USA, the classification of organic compounds for the treatability evaluation. the assesment techniques of teratability of contaminants and the estimatcd cost of remediation technology, the fundamentals that support to select the alternatives for the oil contaminated soil in petrochemical complex were suggest.
FastXcorr : FORTRAN Program for Fast Cross-over Error Correction of Marine Geophysical Survey Data
Kyong-O Kim(김경오),Moo-Hee Kang(강무희),Gee-Soo Gong(공기수) 대한자원환경지질학회 2008 자원환경지질 Vol.41 No.2
해양에서 관측되는 해양지구물리 탐사자료에는 위치오차, 기기오차, 관측오차, 해상 상태 등 다양한 원인에 기인하는 오차가 포함되어 있다. 이에 의해 한 기관에서 해양지구물리 탐사 자료를 취득할 때나 여러 기관에서 취득된 해양지구 물리 탐사자료를 취합할 때 많은 교차점오차가 발생하고, 이러한 교차점오차는 부적절한 해석을 야기하는 인위적인 이 상대를 만든다. 교차점오차를 줄이기 위한 다양한 방법들이 제시되었지만, 이들 대부분의 방법들은 교차점을 찾기 위해 각각의 점자료(point data) 혹은 선분자료(segment data)를 모두 비교함으로써, 불필요하게 많은 계산시간을 요구하게 된 다. 따라서 본 연구에서는 중복구역나눔 방법을 도입하여 빠르게 교차점을 찾고, 가중치선형내삽 방법을 이용하여 교차 점오차를 보정하는 포트란(FORTRAN) 프로그램 (FastXcorr)을 개발하였다. Many cross-over errors due to position errors, meter errors, observation errors, sea conditions and so on occur when marine geophysical data collected by own and other agencies are merged, and these errors can create artificial anomalies which cause an improper interpretation. Many methods have been introduced to reduce cross-over errors. However, most methods are designed to compare each point or segment data to find cross-over points, and require a long processing time. Therefore, FORTRAN program (FastXcorr) is presented to fast determine cross-over points using an overlap-sector, and to adjust cross-over errors using a weighted linear interpolation algorithm.