• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.04a
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• pp.262-266
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• 2011

본 연구에서는 건축물 내장 재료에 대한 연소독성평가와 독성지수연구로써 FT-IR을 이용한 연소가스분석실험을 하였다. 독성지수를 산정하기 위한 실험의 화재모델로 콘 칼로리미터 화재모델(KS F ISO/TR 9122-4)을 사용하였으며 ISO 19702의 절차에 따라 FT-IR을 이용하여 건축 재료의 연소로부터 발생되는 가스의 분석을 수행하였다. 국제규격에서 제시하고 있는 몇 가지 독성지수 산정법 중 ISO 13344에서 규정하는 방법에 따라 FED 값을 산정하였으며, 30분간 시험동물에 노출 시 대상의 50%가 사망하는 농도인 $LC_{50}$을 기준으로 하여 3가지 재료의 독성지수화를 통해 상대적인 독성 위험도를 평가하였다.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.727-730
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• 2009

국내일반은행 연체율은 그룹(대출형태)별로 다양한 원인에 의해서 연체율 결정이 이루어지고 있어 복잡성을 띠고 있다. 본 연구에서는 복잡성을 띠고 있는 연체율의 제 변인들을 파악하기 위해 패널 데이터 모형를 이용한 연구 모형을 설정하고 이를 통해 연체율에 결정적으로 영향을 미치는 제 변인에 대하여 조사, 분석, 검증한다. 본 연구는 3 그룹(기업대출, 가계대출, 신용카드 대출)을 분석대상으로 하였다. 분석기간은 2005년 1월부터 2009년 6월까지의 자료를 이용하였고. 국내은행 연체율을 종속변수로 설정하고 소비자물가지수, 종합주가지수, 환율, 동행(경기)종합지수, 국민주택채권, 고용률을 독립 변수로 투입하였다. 국내일반은행 연체율 요인을 추정한 결과 소비자물가지수는 정(+)의 영향을 미치는 유의한 변수로 나타나고 동행(경기)종합지수와 종합주가지수는 음(-)의 영행을 나타내는 유의적인 변수이지만 환율, 국민주택채권 그리고 고용률은 각각 유의적인 음(-)의 영행을 나타내는 비유의적인 변수로서 연체율에 큰 영향으로 주지는 않은 것으로 나타났다.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.824-825
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• 2016

본 논문에서는 얼굴영상을 이용한 스트레스 지수 추정 방법을 제안한다. 얼굴영상으로부터 스트레스 지수(Stress Index)를 추정하기 위해 ROI(Region of Interest) 영역을 지정하고 지정된 영역의 색상공간을 RGB에서 YCgCo로 변환한다. 검출된 얼굴영역에서 프레임별 Cg값의 평균을 구하고 Cg신호의 주기를 이용하여 스트레스 지수를 추정한다. 제안방법의 성능평가를 위해 PPG(Photoplethysmogram) 측정 장비로부터 측정된 스트레스 지수와 얼굴영상을 이용하여 얻은 스트레스 지수를 서로 비교 분석하는 실험을 진행하였고, 성능평가 결과 오차율이 8.32%인 것을 확인하였다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2009.04a
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• pp.592-597
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• 2009

실시간으로 건물의 소방시스템에 대한 관리를 위해서는 어느 부분에서 이상상태가 나타났다고 한다면, 그 부분에서 이상이 발생되었기 때문에 부분적, 그리고 전체적으로 화재안 전성능수준이 얼마나 하락되었는지를 나타 낼 수 있는 성능지수의 계산 체계가 필요하다. 이러한 성능지수의 체계는 정보를 받아보는 사람들이 시스템에서 발생된 이상이 전체적인 안전수준 하락에 얼마나 영향을 주는 것인지를 쉽게 인지할 수 있도록 하는 데에 기여할 수 있다. 이러한 결과는 건물의 화재안전수준을 나타내는 효율지표로 사용될 수 있을 뿐만 아니라, 광대역규모의 소방 관리에서도 활용도 높은 지수로 사용될 것이라 생각된다. 본 지수 산정체계는 U-건물 소방방화시설관리 운용시스템의 성능 효율지수 산정을 위한 시스템으로 개발되었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.10
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• pp.4604-4611
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• 2012

The purpose of the research is to investigate the factors affecting the life quality of oral health according to the knowledge and behavior related with oral health. Total 272 people who work in Gyeong-Nam province participated in this survey. The research shows that major 4 factors are subjective whole body health, ages, dietary pattern and dry mouse. The subjective whole body health and dietary pattern have an positive effect on the life quality of oral health, whereas ages and dry mouse an negative effect on this. As a result, the health and the life quality of oral health should be improved by investigating the factors affecting oral health and thus developing the program enhancing the oral health to prevent oral disease.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.5
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• pp.1395-1408
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• 2014

In this research, a River Recreation Index Model (RRIM) was developed to provide sufficient information on the water quality of rivers to the public in order to secure safety of publics. River Recreation Index (RRI) is an integrated water quality information for recreation activities in rivers and expressed as the point from 0 to 100. The proposed RRIM consisted of two sub models: Fecal Coliform Model (FCM) and Water Quality Index Model (WQIM). FCM predicted Fecal Coliform Grade (FCG) using a logistic regression and WQIM synthesized water quality parameters of, DO, pH, turbidity and chlorophyll a into Water Quality Index (WQI). FCG and WQI were integrated into RRI by the integrating algorithm. The proposed model was applied to upstream of Gangjeong Weir in Nakdong River, and compared with Real Time Water Quality Index (RTWQI) which is the existing water quality information system for recreation use. The results show that calculated RRI reflected change of integrated water quality parameters well. Especially chlorophyll a showed Pearson correlation coefficient -0.85 with RRI. Also, RRIM produced more conservative index than RTWQI because RRI was calculated considering uncertainty of water quality criteria. Further, RRI showed especially low values when fecal coliform was predicted as low grade.

• Journal of agricultural medicine and community health
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• v.39 no.2
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• pp.104-115
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• 2014

Background: The glycemic index (GI) indicates the rise in blood glucose caused by carbohydrate-containing foods. In Korea, there have been few studies on the understanding adults have of GI. Thus, this study investigated differences GI knowledge among the korean adults. Methods: A questionnaire on the perspective of GI and experience in GI education, participational intent to learn, general knowledge level, and dietary practice was conducted among those living in agricultural areas. Respondents were visitors to the health promotion center of a university hospital. Results: When asked about the GI familiarity, the standard of education, the relationships between diseases and GI, the diabetes group was better able to answer correctly than the other groups. However, the diabetes group showed either no difference or less correct responses for general knowledge of GI. With respect to their usual consideration and low GI dietary practice, the diabetes group provided higher responses than the other groups. On the whole, the diabetes group was better than the other groups for GI relative factor but none of the groups showed high levels for perspective, education, dietary practice of GI. Conclusions: The groups other than the diabetes group had a low perspective of GI, a lack of correct knowledge of GI, and did not follow a proper diet without considering GI. Even in the diabetes group the perspective, knowledge, and proper dietary practices were not adequate. Accordingly, further education of GI is necessary for diabetic patients, patients with chronic diseases and also people without diseases.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.6
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• pp.959-967
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• 2008

The body measurement ratios and indices used in this study are all 3D female measurement data of the two countries were obtained from Size Korea Project and SizeUSA Project. The purpose of the study is to compare and analyze body measurement data between two countries. The results of this research are helpful for the clothing manufacturer and company to trade with America. The samples were 1,988 Korean and 6,306 American females. Thirty-five body measurement ratios and indices were chosen as the principal measurements in making garments. The conclusion of this research was as follow; First, U.S. females have measurements that exceed Korean women, except for crotch length total and shoulder slope. Second, the correlation coefficients of height and weight are relatively higher than other measurements in the two countries' body measurements. Finally, American women's height ratios are significantly bigger than Korean women's in most height ratios. On the other hand, Korean are significantly bigger than American in weight ratios. The drop values of Korean females are also smaller than those of American. It was recognized that American women are much bigger, wider and more obese than Korean according to the results by utilizing the girth ratios. BMI, Rohrer and Vervaeck index.

• Korean Journal of Construction Engineering and Management
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• v.15 no.5
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• pp.49-60
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• 2014

Electrical construction cost index has been applied fixed-weighted method. But fixed-weighted method can't faithfully reflect industrial structure changes. Because the weighted value and price index of fixed-weighted method is fixed on the basic period. Electrical construction cost index is composed of the cost of labor and material. So it fluctuates sharply whenever the construction association of korea announces the laborer's wage of electrical construction. And it depends on only the producer price index changes that is related to electrical construction since then. So a study is focused on developing electrical construction cost index applied chain-weighted method. Because chain-weighted method can reflect the realities of the electrical construction and alleviate the sudden changes of labor cost with link index. We verify that chain-weighted method relieves the step states of electrical construction cost index applied fixed-weighted method.

• Proceedings of the KAIS Fall Conference
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• 2010.11a
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• pp.20-23
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• 2010

본 연구의 목적은 Bhaskar 등(2000)의 연구를 우리나라 유역에 적용하여, 기왕홍수사상에 따른 유출수문곡선의 특성을 이용한 돌발홍수지수(Flash Flood, Index, FFI)를 산정함으로써 유역에서 발생하는 돌발홍수의 심각성 정도를 정량화하고자 하였다. 또한, Bhaskar 등(2000)의 연구내용을 보다 확장하여 미계측유역에서 적용할 수 있는 새로운 돌발홍수지수를 개발하고, 돌발홍수지수와 강우특성과의 상관관계를 정량적으로 분석하였다.