• 대한전자공학회논문지TC
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• 제44권1호
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• pp.38-53
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• 2007

최근 들어 방송매체의 다양화와 디지털화 및 방송과 통신의 융합화가 진행됨에 따라 다양한 콘텐츠를 언제, 어디서나, 다양한 단말을 통해 사용자가 원하는 콘텐츠를 쉽고 편안하게 소비할 수 있는 유비쿼터스 개인 미디어 소비형태로 발전하고 있다. 이를 위해 본 논문에서는 사용자의 취향과 시청패턴을 반영하여 원하는 프로그램을 시간에 제약 없이 필요 및 관심 부분만을 효과적으로 검색/시청할 수 있는 개인 맞춤형방송 서비스를 제시하고, 이를 위한 TV-Anytime 표준 기반 개인맞춤형방송 단말플랫폼을 설계/구현한 결과를 제시하였다. 이렇게 개발한 서비스와 단말플랫폼은 많은 서비스, 채널, 콘텐츠가 제공되는 방송환경이나 통방융합 환경에서 방송사업자 및 서비스 사업자, 콘텐츠 제작자들은 각 사용자에게 적합한 맞춤형 서비스를 제공할 수 있어 차별화된 방송서비스가 가능하도록 하기위해 활용될 것으로 기대된다.

• Korean Chemical Engineering Research
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• 제45권1호
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• pp.39-45
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• 2007

분리벽형 증류탑의 구조 설계를 위한 shortcut 방법으로서 기존의 Fenske-Underwood 식을 3기 일반 증류탑 배열에 확장 적용하는 방법을 제안하였다. 제안된 방법으로 초기 설계 단계에서 분리벽형 증류탑의 공급단 위치, 분리벽 구간, 중간 제품 생산단의 위치를 간편하면서도 효과적으로 결정할 수 있는 것을 확인하였다. 제안된 방법에 의하여 구조 설계가 이루어진 분리벽형 증류탑과 기존의 연속 2기 증류공정 간의 분리 효율을 비교하기 위해 HYSYS를 사용하여 다양한 원료 조건에 대하여 전산모사 실험을 수행하였다. 그 결과 제안된 분리벽형 증류탑이 기존 연속 2기 증류공정 대비 16％에서 65％까지 에너지를 절약할 수 있음을 확인하였다. 또한 분리벽형 증류탑에 의한 분리 성능 향상 정도는 중간 비점 물질의 조성에 크게 의존하며 중간비점 조성이 우세할수록 유리함을 확인하였고, 최적 에너지 분포 영역 경향은 원료 혼합물의 ESI 값에 의하여 결정됨을 알 수 있었다.

• Spatial Information Research
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• 제19권1호
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• pp.61-72
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• 2011

전 지구적 기후변화인 지구온난화의 주원인으로 지목되고 있는 온실가스는 공간적으로 주로 도시에서 발생하고 있기 때문에 도시차원에서의 대책이 무엇보다 필요하다. 본 연구는 도시형태와 탄소발생량과의 관계를 분석하여 기후변화에 대응한 탄소배출저감형 도시의 형태를 제시하는 것을 궁극적인 목표로 삼고 있다. 이를 위해, 첫째로 도시형태에 대한 이론고찰을 수행하여 도시공간의 물리적 규모, 이용현황, 활동강도와 관련된 도시형태요소를 선정하였다. 둘째, 서울시를 사례로 전력, 도시가스, 지역난방, 석유, 상수도 사용량 자료를 이용하여 이산화탄소 배출량 지도를 작성하였다. 셋째, 이산화탄소 배출량과 도시형태요소와의 관계를 분석하여 도시공간에서 에너지 사용량에 영향을 주는 도시형태를 밝혀내고, 도시계획 측면에서의 시사점을 도출하였다. 본 연구에서 도시형태 요소와 이산화탄소 배출량간의 관계를 분석한 결과는 실제 에너지 사용량에 기반하여 이산화탄소 배출량을 산정하여 활용하였다는 점에서 기존 연구가 지닌 한계를 극복하고, 사례분석을 통해 구체적이고도 결과를 도출하였다는데 그 의의가 있다.

• 한국기계가공학회지
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• 제12권2호
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• pp.27-33
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• 2013

In this study we analyzed the on-road driving performance of two parallel-type diesel-hybrid buses which have been driven in Daegu metropolitan area. A real-time on-board data logger was facilitated to measure the vehicle information such as vehicle speed, idle stop, state of charge of battery, and engine operating conditions. These diesel-hybrid buses ran as a commuter at Daegu Exco area and Dalsung industrial complex. The driving pattern in Exco area comprised more frequent idle stop and relatively lower speed than at Dalsung area, where comprised no idle stop. Due to those different driving patterns, the fuel economy at Dalsung showed $3.7\;km/{\ell}$, which is about 8% higher than that of Exco. The main causes of this come from the higher portion of regenerative braking and higher speed which moves to the operating points of diesel engine with a lower fuel consumption.

• 약학회지
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• 제52권5호
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• pp.323-330
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• 2008

This study was conducted to investigate the actual conditions of vitamin supplement usage, the importance of their agents for health management, and the distribution of basic data for their correct consumption. For a period of one month 2003, the study was conducted based on questionnaires to the parents of students in both a middle school and a high school, and the personnel of K Company at random. The material used the survey sheets by setting up the previous investigation. The collected data analyzed the frequency and percentage of the following items: General demographic characteristics of consumers; the supplements taking; the reasons for taking them; the kinds of supplements taken; the media used for distributing data on their use; the potential use in the future, etc. According to the survey, the number of people who were taking supplements was higher than the number of people who weren’t taking them. Multi-vitamins were mostly consumed. The rate of supplements consume was high in people of a higher income bracket, had the time to exercise and to enjoy physical recreation. Most of the consumers who were taking the supplements said they did it to maintain their health and to recover from the fatigue. Those who weren’t taking them said they had enough vitamins from eating the appropriate food, and they were also concerned about the effectiveness of taking the supplements. The majority of useful information or advice for purchasing vitamins came from doctors, medical experts, relatives, and various media sources such as TV, newspapers, and magazines.

• 한국컴퓨터정보학회논문지
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• 제10권4호
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• pp.385-396
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• 2005

이 논문에서는 온라인 서명 검증에 대한 새로운 접근 방법으로, 서명을 필기의 기본 구성 요소들로 표현하는 구조적인 접근 방법을 제시한다. 속력의 국부 극소점을 분할점으로 하여 얻어지는 부분을 원시 패턴으로 정의하였고, 서브패턴으로서 방향 변화에 의해 얻어지는 단순 회전형 성분, 첨형 성분, 종형 성분의 세 가지 종류를 정의하여 서명을 구조적으로 표현하였다. 그리고 서브패턴을 기본 단위로 한 동적 계획정합 알고리듬을 제시하였다. 또한, 학습 샘플로부터 국부적인 부분에 대한 변화도와 복잡도를 추출하여 참조 패턴의 학습과 진위 판단 임계치를 설정하였다. 실험을 통하여, 함수적 접근과 매개변수적 접근 그리고 제안된 구조적 접근 방법을 동일 조건에서 검증률, 처리시간, 메모리의 측면에서 비교하였다. 제안된 방법에서는, 서명의 국부적인 가중치를 적용하고 복잡도를 판단임계치의 설정에 사용함으로써 평균 오류율이 14.2%에서 4.05%로 검증률이 크게 향상되었다. 또한, 시간과 메모리의 측면에서 함수적 접근 방법에 비해 효과적이면서도 함수적 접근 방법의 최고 성능에 근접한 검증률을 얻을 수 있었다.

• 동아시아식생활학회지
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• 제22권2호
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• pp.147-162
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• 2012

Abdominal obesity is an important factor of metabolic syndrome and is known as an independent risk factor of cardiovascular disease. The purpose of this study was to examine the fatty acid intake pattern as well as the association between fatty acid intake and abdominal obesity and hyperglycemia in Korean adults. This study was based on data from the Korea National Health and Nutrition Examination Surveys (KNHANES) I, II, III, and IV. After excluding subjects who had missing data for dietary intakes, anthropometric measurments, and laboratory tests, a total of 12,320 subjects aged 20~64y (5,266 men and 7,054 women) were included in the study. Trends in individual consumption of dietary fatty acids by year were analyzed by One-way ANOVA test, and the association between fatty acid intake and abdominal obesity and hyperglycemia was analyzed by logistic regression analysis after adjusting for age, energy intake, marital status, job, education level, alcohol intake, and smoking status. In men, intakes of TFA, SFA, MUFA, FUFA, and n-6 PUFA significantly increased with year. On the other hand, intakes of TFA, SFA and FUFA significantly increased with year in women. Logistic regression analysis showed that the risk of abdominal obesity was significantly associated with intakes of PUFA, LNA and n-3 PUFA in women. However, there was no association with any fatty acid intakes in men. The risk of hyperglycemia was significantly and positively associated with intakes of TFA, SFA, PUFA, and LNA in men, but, there was no significant association with any fatty acid intakes in women. These results show that abdominal obesity and hyperglycemia are significantly associated with individual intake of fatty acids, suggesting that fatty acid type may be associated with risk of abdominal obesity and hyperglycemia. Futher, the macronutrients of measl must be properly balanced.

• 농업과학연구
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• 제29권1호
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• pp.55-65
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• 2002

The most representative fruit in Yanbian area is Applepear(Ping Guo Li). It has been a important resource of farm income. According to the economic growth and income Increase of individual consumers, food consumption pattern will be changed from grain to high value cash crops such as Applepear and vegetables. The globalization and adapt ion of free market oriented economic policy of China government have led to change the collective farming system to individual farm management system. The institutional transformation have brought about high productivity of farm products and incomes of farmers. Therefore the plantation area of Applepear and requirement of investment cost for establishment of Applepear farms have increased rapidly since the 1980's, the time of perestroika and glasnost in Chinese economy. In prosperity of Chinese agriculture, individual farmer's decision making as free selection of farmland use, selection of high pay-off crops, free sale of the products in free market and credit support for the project might be the most important factors. In case of Applepear farm development, net present value of the project net benefit was estimated at 55.518won per hectare and financial rate of return was 21%. The benefit/cost ratio of the project was 2.11. Considering 10% of discounting rate or the opportunity cost of capital in China the Applepear farm development project showed us economically feasible in the light of the above efficiency indices. The Chinese government has to support Applepear farm development project financially and institutionally considering the high-payoff benefit of the fruit and farmer's in come increase in the future.

• Journal of Preventive Medicine and Public Health
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• 제27권3호
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• pp.465-473
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• 1994

This study was carried out to evaluate the relations between sociodemographic, work-related factors and health related behaviors in a group of 1,042 workers in Taejeon and Chungnam area. The results were as followings: The older workers took more irregularly meals, more cigarette and more alcohol than the younger. Men had more appropriate sleeping time, more regular exercise than women, but more frequent alcohol consumption and cigarette smoking. The married had more regular sleeping habit than the unmarried. The group of married were smoking more and obese. In view of monthly income which represent the socioeconomic state of workers, the group of more than 1 million won had more frequent alcohol ingestion, more heavier body weight than another group of less than 1 million won. Workers having their work hours exceed 9 hours had inappropriate sleep duration, and shift workers took more irregularly meals. The group having poor self-rated health status showed more regular diet, exercise and overweight. Workers recently experienced chronic illness were more overweight and lesser smokers. Above results showed that the health related behaviors were related to the sociodemographic characteristics and occupation-related characteristics. The study for relationship between variant factors affecting health behavior and disease or mortality is need and it should be emphasized that the publicity and education of health related behavior for industrial workers is necessary.

• 한국의상디자인학회지
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• 제9권3호
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• pp.133-149
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• 2007

Amid a wave of informatization, the world is allowing diverse exchanges and cooperations in the global village to be promoted. And, a change in the life environment and the consumption pattern allows the key word in distribution revolution called 'online' and 'emotion' to be recalled. As the emotion is being positioned as the trend of the new era, this study has its significance in that even the fashion industry desperately requires the emotion marketing aiming at the artistic value and practicality in fashion and the creation in value-added, and requires the development and utilization plan for diverse VMD programs on the rational dress shop, like the successful case of the trendy shop such as America's large bookstore 'Barnes & Noble.' Accordingly, the purpose of this study is to design and suggest the virtually trendy dress shop as one plan of utilizing VMD, by examining about the fashion business environment and about 'emotion trend' according to the consumer purchase needs, and through researching into the cases of the trendy dress shops with the emotion marketing. The virtual trendy dress shop 'Muse,' which was proposed as its research result, was designed with having the main concept as urban naturalism, which points to the urban and sophisticated coordination, and to the simple personality and rational value, as one method of utilizing VMD in the differentiated dress shop. And, it is desired to be performed the researches on the development and the utilization plan for diverse VMD programs in the dress shop down the road.