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가스누출 감지용 실리콘 압저항형 절대압센서의 제조 및 온도보상
손승현,김우정,최시영 ( Seung Hyun Son,Woo Jeong Kim,Sie Young Choi ) 한국센서학회 1998 센서학회지 Vol.7 No.3
Silicon piezoresistive absolute pressure sensor for gas leakage alarm system was developed. This sensor must operate normally in the range of 0∼600 mmH₂O pressure, and 100 temperature. To make the most of this sensor for gas leakage alarm system, gas must not leak from the sensor itself when the diaphragm of the sensor fractures. Thus, the sealed diaphragm cavity was anodically bonded to Pyrex 7740 glass under the condition of 10^(-4) torr at 400 ℃. The sensitivity of developed sensor was 4.06 ㎶/VmmH₂O for 600 mmH₂O full-scale pressure range. And temperature compensation method of this sensor is to change bridge-input-voltage linearly in proportion to the temperature variation by using diode(YXIN4001) or Al thin film resistor. By these methods the temperature effect in the range of 0∼100℃ was compensated over 80% for offset drift, 95% for sensitivity.
손승현 ( Son Seung-hyun ),김기호 ( Kim Ki-ho ),이준아 ( Lee Jun-ah ),김선국 ( Kim Sun-kuk ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
Logistics facilities are characterized by wide spans and high flooring, most of which are constructed with PC (Precast Concrete) methods to meet a wide range of commercial and industrial needs. However, the PC structure is a pin joint design, and the construction cost is increased due to the restrictions caused by the installation process, and the construction period is lengthened. In order to solve the above problem, SMART Frame, which is a structural system similar to the steel frame structure, was developed by embedding a steel frame at both ends of the PC. The purpose of this study is to analyze the erection time reduction effect of steel connected precast concrete components (SMART frames) for long span and heavy loaded logistics buildings compared to existing PC frames. For this study, a logistics building constructed with pin joint PC components is selected as a case. The result is compared with the existing PC frame to confirm the erection time reduction effect.
손승현(S.H.Son),김상용(S.Y.Kim),김창섭(C.S.Kim),지철근(C.K.Chee) 한국조명·전기설비학회 1990 한국조명·전기설비학회 학술대회논문집 Vol.1990 No.-
Temperature distribution of high pressure mercury lamp has been measured as a function of time using spectroscopic method. Sampling signal which is synchronized by lamp voltage was used to measure temporal line intensity at each radius. To obtain radial temperature distribution, the measured intensity was transformed into radial line intensity by Abel"s formula. Absolute temperature profile was calculater from relative intensities of spectral lines as a function of line and tube radius. The temperature profile is very similar to the electrical tube current profile.
손승현 ( Seung Hyun Son ),이예다나 ( Ye Da Na Lee ),조성희 ( Sung Hee Cho ),문주영 ( Ju Yeong Moon ),마지성 ( Ji Sung Ma ),강민 ( Min Kang ) 안암교육학회 2013 한국교육학연구 Vol.19 No.2
본 연구에서는 장애대학생의 성공적인 대학생활을 위한 대학교육 전반에 걸친 지원 프로그램의 연구동향을 파악하고 분석하였다. 이를 통해 향후 대학 내 장애학생 대상 지원 프로그램에 대한 시사점을 도출하고 앞으로 나아갈 방향을 제안하고자 하였다. 본 연구의 분석 자료는 장애인 특수교육대상자 대학입학 특별전형제도가 시작된 1995년부터 2012년 12월까지 한국연구재단 등재 또는 등재후보지의 학술지에 발표된 총 38편의 논문을 선정하였다. 선정된 논문을 우선 입학 전, 대학생활 중, 졸업 후 취업을 위한 지원으로 나누고 연구방법, 연구대상, 지원 분야, 지원 내용의 세부 분야별로 구분하여 연구의 동향을 살펴보았다. 또한 연구논문에서 실제 지원 프로그램을 제공한 연구가 대학 현장에서 어떻게 활용되고 있는지 그 내용을 구체적으로 살펴보았다. 장애학생 지원을 위한 연구 동향을 살펴본 결과 제도적인 변화에 따른 요구가 연구에 반영되었으며, 연구주제는 실태조사가 대부분을 차지하였다. 연구대상은 시각장애와 청각장애 학생들을 대상으로 한 연구가 대다수였다. 실제적인 지원을 제공한 분야는 대학생활 중 교수-학습 지원이 가장 많은 비중을 차지하였다. 또한 입학 전?대학생활 중·졸업 후 취업을 위한 지원으로 볼 때 입학 전, 졸업 후에 비하여 대학생활 중과 관련된 논문이 다수를 차지하였다. 이러한 연구결과들을 토대로 향후 다양한 연구 분야와 대상을 확장하여 장애대학생을 위한 개별화된 지원서비스의 필요성 등을 제안하였다. The purpose of this study was to analyze the research trends on support for college students with disabilities and suggest diverse support service programs for college students with disabilities to be successful in college life. The search procedures using the Web-database system were implemented to find the proper research from 1995 to 2012. A total of 38 articles met the criteria for analysis and were included in this review. Each article was analyzed according to pre-college (transition to higher education), college (Success learning program in higher education), post-college (work and higher education). Studies were analyzed by research methods, disability type, what type of services were provided. Results of the study are as follow: research trends reflected the changes in regulations and laws by the government. Additionally, it was found that most of the research methods were survey and most of the subjects in research were college students with visual and sensory disabilities. The result showed that the contents areas of research were concentrated teaching and learning services and support for students with disabilities and focused success learning program in the college life. Based on the results of the study, a variety of research areas and practical support was suggested, and additionally an individualized learning service program for college students with disabilities were discussed and suggested future researches.