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New FMVSS301 법규 조건에 의한 승용차의 후방충돌 해석 사례
황인수(Insoo Hwang),임종현(Jonghyun Yim),김동석(Dongseok Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
NHTSA upgraded the rear impact test in the FMVSS(Federal Motor Vehicle Safety Standard) on fuel system integrity. This new rule replaces a full rear impact test procedure at 48 ㎞/h with an offset rear impact test procedure specifying that only a portion of the width of the rear of the test vehicle be impacted at 80 ㎞/h. In this paper, we performed the rear crash simulation according to the new rule and evaluated the results of simulation and test. The result showed higher deformation value than that of old FMVSS301. All simulation results existed within the in-house guideline, and test result was satisfied with body deformation requirements.
차대차 충돌 시 연료계통 손상 최소화를 위한 차체구조 보강 방안 연구
황인수(Insoo Hwang),임종현(Jonghyun Yim),김동석(Dongseok Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Fuel integrity protection is one of the inportant missions when we develop vehicle crash worthiness becayse of critical accident effect to passengers. Therefore, several test modes more severe than regulation are considered at rear body structure design. In this paper, car-to-car rear impact crash analysis with impact velocity of80 km/h was performed in order to compare the severity of structure deformation with it at FMVSS 301 test condition. Also modification concept of rear body structure was proposed to reduce de formation of fuel system safety zone.
e-러닝에서 학습자의 사전동기와 수강관련 요인이 강의평가에 미치는 영향에 관한 연구
황인수(Insoo Hwang) 한국데이타베이스학회 2008 Journal of information technology applications & m Vol.15 No.2
The purpose of this study is to find student factors associated with the students' evaluation of university teaching, and to provide a meaningful reference to policy-making of teaching evaluation. Based on the surveyed questionnaires from 232 students who participated in e-learning course, in combination with applying descriptive statistics, this study analyzes (1) the influences of students' pre-motivation level of student based-on ARCS theory on class satisfaction, (2) the influences of students' grade, attendance, and class involvement on class satisfaction, and (3) the influences of e-learning experience on students' pre-motivation level and class satisfaction. Result of this study shows that:(1) students' pre-motivation level including Attention(A), Relevance(R), Confidence(C), and Satisfaction(S) is positively correlated to students' evaluation for teaching, (2) students' grade, attendance, and class involvement are positively correlated to students' evaluation for teaching, and (3) students' e-learning experience is not related with students' pre-motivation level, whereas it is related with class satisfaction.
인터넷 검색과 형태소분석을 이용한 표절검사시스템의 개발에 관한 연구
황인수(Insoo Hwang) 한국데이타베이스학회 2009 Journal of information technology applications & m Vol.16 No.1
As the World Wide Web (WWW) has become a major channel for information delivery, the data accumulated in the Internet increases at an incredible speed, and it derives the advances of information search technologies. It is the search engine that solves the problem of information overloading and helps people to identify relevant information. However, as search engines become a powerful tool for finding information, the opportunities of plagiarizing have increased significantly in e-Learning. In this paper, we developed an online plagiarism detection system for detecting plagiarized documents that incorporates the functions of search engines and acts in exactly the same way of plagiarizing. The plagiarism detection system uses morpheme analysis to improve the performance and sentence-based comparison to investigate document comes from multiple sources. As a result of applying this system in e-Learning, the performance of plagiarism detection was improved.
진디혹파리에 대한 오이에 등록된 47종 살충제의 저독성 농약 선발
최용석,남윤규,황인수,한익수,박덕기,Choi, YongSeok,Nam, YunGyu,Hwang, InSoo,Han, IkSu,Park, DeokGi 한국응용곤충학회 2013 한국응용곤충학회지 Vol.52 No.3
본 실험은 오이재배시 사용되는 살충제 47종이 진딧물 포식성 천적인 진디혹파리(Aphidoletes aphidimyza Rondani)의 모든 발육단계에 얼마나 영향을 주는가를 평가하였다. 진디혹파리 알에 대한 살충제의 독성평가 결과 emamectin benzoate 등 22종의 살충제가 낮은 독성을 보였다. 알에 독성이 낮은 22종 살충제 중 flonicamid를 포함하는 12종 살충제가 진디혹파리 유충에 대하여 0~27%로 낮은 독성을 보였으나, indoxacarb + teflubenzuron와 chlorantraniliprole의 독성은 각각 35.4%와 64.6%였다. 진디혹파리 유충에 보통독성 이하의 독성을 보인 indoxacarb + teflubenzuron와 chlorantraniliprole을 포함한 14종 살충제는 진디혹파리의 번데기와 성충에도 낮은 독성을 보였다. From the results achieved by the evaluation of toxicities to an aphid predator, Aphidoletes aphidimyza Rondani eggs with 47 pesticides used for cucumber farming, 22 pesticides including emamectin benzoate showed low toxicity. 12 pesticides with flonicamid among 22 pesticides tested on eggs showed low toxicity (mortality, 0~2.7%) to A. aphidimyza lavae and indoxacarb + teflubenzuron and chlorantraniliprole showed toxicity of 35.4% and 64.6%, respectively. 14 pesticides including indoxacarb + teflubenzuron and chlorantraniliprole demontrating low toxicity against A. aphidimyza lavae showed low toxicity to A. aphidimyza pupae and adults as well.
OLAP 다차원 모델을 이용한 소프트웨어 사업대가기준의 개선
박혜자(Hyeja Park),황인수(Insoo Hwang),권기태(Ki-Tae Kwon) 한국IT서비스학회 2012 한국IT서비스학회지 Vol.11 No.1
This paper presents the ways that can improve the Software Cost Estimation Guidelines in order to replace those that are expected to be abolished at February, 2012, and solve the problems that are being occurred in the current Software Cost Estimation Guidelines. By using multidimensional modeling of OLAP(On-Line Analytical Processing), this paper does three dimensional modeling that considers the product/service view, process view and skill view. Also, it presents the identification method of cost estimation data through the view of each dimension. Furthermore, it defines the software cost estimation process and adapts them into the bottom up estimation and the top down estimation. Finally, it proposes the access of cost estimation data by the multidimensional analysis of OLAP.