RF sputtering 법으로 제조된 CuInSe₂박막의 특성

김규호,김효준,이해석,김민호,정상현 嶺南大學校 工業技術硏究所 1998 工業技術硏究所論文集 Vol.26 No.1

CuInSe₂ thin films were prepared on Si(100) wafer by RF magnetron sputtering from powder target which was prepared by reacting high purity Cu₂Se and In₂Se₃(99.999%, Cu₂Se: In₂Se₃=1:1 mole ratio), in argon gas The XRD results suggest that deposited thin films were mainly composed of crystalline CuInSe₂ with the typical chalcopyrite structure, whereas film deposited showed the mixed phase of Cu₂Se+CuInSe₂at 50W. Deposited film showed (204), (220) preferred orientation at 50W and deposited films from 75W were strongly oriented along th e(112) plane. In the EDS analysis, Cu/In mole ratio of the thin films was decreased and Se/(Cu+In) mole ratio was increased with increasing RF power. The lattice parameters of a, c axis and c/a ratio of deposited films were decreased with increasing RF power. The grain size of the thin films measured by SEM became coarse with the increase of RF power.

8년간(1992~1999) 산업안전보건연구원에 의뢰된 직업병 심의 사례 분석

강성규,김규상,김양호,최정근,안연순,진영우,최병순,양정선,김은아,채창호,최용휴,김대성,박정선,정호근 대한산업의학회 2000 대한직업환경의학회지 Vol.12 No.2

Objectives : Pneumoconisis and noise-induced hearing loss (NIHL) have been reported as main occupational diseases by the Special Health Examination. The Industrial Accident Compensation Insurance has reported various work-related diseases, however, these two diseases occupied almost a half of compensated cases. Therefore, it was not well known about the status of occupational diseases other than pneumoconiosis, NIHL, and cardio-cerebrovascular accident (CVA). This study was conducted to analyze claimed cases as an occupational disease, that was requested to the Korea Industrial Safety and Health Agency (KOSHA). Methods : The local office of the Korea Labor Welfare Corporation (KLWC) has asked the KOSHA for confirmation of claimed cases as an occupational disease. We analyzed 379 cases requested from KLWC, the Ministry of Labor, employers, unions and occupational health agencies from 1992 to 1999. Results : Male was 80.7 % of the requested cases. Their mean age was 42 years old and 75.5 % of them were more than 35 years old. The requested cases were increased rapidly from 25 cases in 1992 to 108 cases in 1999 and the accept rate was 50.7 %. The majority of requested cases were respiratory diseases(22.4%), cancers(18.5%), Neuropsychiatric problems(14.5%), and musculoskeletal problems(13.5%). The accept rate was high in reproductive, respiratory, musculoskeletal and digestive disorders and low in neuropsychiatric, renal and otologic problems and occupational cancers. 73.6% of them were caused by chemical agents, especially 28.5 % were by organic solvents. 67% of them were clinically confirmed at university hospitals. A half of the cases were from KyongIn area, even the request came from the whole country. Conclusions : A claim was common in workers whose age was over 35 years old and exposure history was over 10 years. The respiratory diseases and neuropsychiatric disorders were still main problems in occupational health and occupational cancers was increasing even though its accept rate was not high yet.

한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고

양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

금병산과 적오산의 산림군락 분류

김효정,이미정,지윤의,이규석,송호경 忠南大學校 環境問題硏究所 2002 環境硏究 Vol.20 No.-

대전에 위치한 금병산과 적오산의 식생을 분류하기 위하여 연구가 수행되었다. 총 41개의 조사구에서 식물사회학적 방법으로 조사를 하였다. 이 지역 산림식생은 크게 이차림식생과 조림식생으로 구분 되었다. 이차림 식생은 소나무군락, 상수리나무군락, 팽나무군락으로 구분되었다. 조림식생은 아까시나무군락, 리기다소나무군락, 일본잎갈나무군락, 곰솔군락으로 구분되었다. 본 조사지역에서 출현한 종수는 총 145종이었으며, 가중나무, 개망초, 미국자리공 아까시나무, 족제비싸리 등 총 5종의 귀화식물이 출현하였다. This study was carried out to classify forest vegetation community of Geumbyeongsan and Jeokosan in Daejeon. Employing the releve´ method of Dierssen, 41 plots were sampled. Forest community ws classified as second forest vegetation and afforestation vegetation. The second forest vegetation was classified into six communities such as Pinus densiflora community, Quercus acutissima community, Quercus serrata community, Quercus variabilis community, Quercus aliena community, and Celtis sinensis community. Afforestation vegetation was classified again as Robinia pseudoacacia community, Pinus rigida community, Larix leptolepis community, and Pinus thunbergii community. In the present study area, we found a total of 145 taxa. We found a total of five naturalized plants taxa of Ailanthus altissima, Erigeron annuus, Phytolacca americana, Robinia pseudoacacia, and Amorpha fruticosa.

기상화학반응에 의한 산화안티몬 초미분체의 합성

김규호 嶺南大學校 工業技術硏究所 1989 연구보고 Vol.17 No.2

A series of experiments was carried out to prepare the ultrafine powder of antimony oxide using gas phase chemical reactions. The effect of reaction conditions, such as the kind of the oxidizing agent, oxygen or water vapor, the partical pressure of SbCl?? vapor and the reaction temperature, was investigated. The identification, mean size, distribution and shape of particles were studied by X-ray diffraction and T.E.M. observation. The products were identified as a mixture of Sb₂O₃, Sb₂O??, Sb₂O₃, Sb₂O₄ and amorphous, white in color, several tens of nm and log-normal distribution in size, spherelike in shape. The average size of oxide particles becomes smaller with smaller PSbCl?? and higher temperature.

40X40 픽셀 어레이 CMOS 실리콘 망막칩의 설계 및 제조

김종문,김호운,신장규,히로오 요네즈 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

In this research, we have designed and fabricated a 40X40 pixel array retina chip which performs edge extraction by using CMOS standard process. The functions of photoreceptors, horizontal cells and bipolar cells have been implemented with semiconductor devices and circuits. In previous retina chips, spatial smoothing of input image has been implemented by resistive networks, which occupy a large chip area with a reduced area for effective photosensing due to a large number of required metal wires for interconnection. In this research, we have fabricated a retina chip which simplifies the wiring between pixels by using distributed-MOSFETs.

무선온도계측에 의한 현장타설 콘크리트의 양생온도관리

김형래,조호규 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

The purpose of this study is on the utilization of curing management method of concrete by wireless data aquisition system. Applied system is consisted of a data-logger to measure the concrete temperature and a wireless-modem to communicate with the data-logger. In this study, the process to monitor concrete temperature and to take an appropriate measure by the system was investigated. As the results, through the measurement of concrete temperature by wireless aquisition system, almost same results with the case of existing auto-recording system were acquired. The wireless aquisition system could make sensing the steep variation of temperature and proper measurements for additional curing possible.

실험적 종양 모델에서의 자기공명영상과 조직학적 소견의 비교 연구

신규호,서진석,양우익,김남현 中央醫學社 1999 中央醫學 Vol.64 No.1

反應性 Sputtering法에 의한 TiN 皮膜 形成

金興潤,金圭鎬 嶺南大學校 工業技術硏究所 1991 연구보고 Vol.19 No.2

By reactive sputtering system, Deposition rate of TiN coating on SUS304 substarte was studied with variation of substrate conditions(mechanical polishing, chemical etching, ion etching), D.C power(300-600W), P??(??mbar) and P??(??mbar). The following results were obtained. 1. The deposition rate with pretreatment of substrate was faster in case of ion etching than mechanical polishing and chemical etching. 2. The deposition rate was increased linearly with the increase of supplied power and with the increase of partial pressure of Ar in the range of ??mbar. 3. The deposition rate was decreased over than partial pressure of Ar of ??mbar and decreased linearly with the increase of partial pressure of N₂. 4. The structure of thin film layer deposited within the experimental range was TiN phase.

대전 도덕봉과 백운봉의 산림군락 분류

김효정,이미정,지윤의,안승만,이규석,송호경 한국환경생물학회 2002 환경생물 : 환경생물학회지 Vol.20 No.3

본 연구는 계룡산국립공원의 지류인 도덕봉과 백운봉의 산림식생을 대상으로 식물사회학적 방법에 의해 산림군락을 분류하고 이 지역의 식생 현황 파악과 국립공원관리에 필요한 기초자료를 제공하고자 하였다. 식물사회학적 방법으로 89개 조사구를 분석한 결과, 신갈나무군락, 졸 참나무군락, 굴 참나무군락, 소나무군락, 서어나무군락, 리기다소나무-곰솔군락으로 구분되었다. 신갈나무군락은 해발고가 가장 높고 경사가 급한 지역에 분포하였으며,졸참나무군락은 해발고가 비교적 낮고 경사가 급한 지역에 분포하였다. 그리고 굴참나무군락은 신갈나무군락에 비해 해발고가 낮은 남사면의 건조한 지역에 분포하고 있었다. 소나무군락은 해발고가 비교적 높고 폭이 좁은 건조한 능선 부위에 분포하고 있으며, 서어나무군락은 주로 남사면 계곡부의 중부에 분포하고 있었 다. 그리고 리기다-곰솔군락은 조림군락이다. This study was carried out to classify forest vegetation community of Dodeokbong and Baekwunbong in Gyeryongsan. Employing the releve method of Dierssen, 89 plots were sampled. Forest community was classified into Quercus mongolica community, Quercus serrata community, Quercus variabilis community, Pinus densiflora community, Carpinus laxiflora community, and Pinus rigida-Pinus thunbergii community. Quercus mongolica community was found in high altitude and steep area, Quercus serrata community in relatively low altitude and steep slope area, and Quercus variabilis in southern arid and low area compared with Quercus mongolica community. Pinus densiflora community is present in relatively high altitude and narrow arid ridge area. And, Carpinus laxiflora community is mainly distributed in southern valley area. Pinus rigida-Pinus thunbergii community is planted community.