• 한국통신학회논문지
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• 제19권7호
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• pp.1321-1334
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• 1994

본 논문에서는 고도 지능망내의 한 물리적 실체로서 통신서비스 이용자와 망간의 각종 정보교환을 지원하는 Intellingent Peripheral(IP)에서의 서비스(특수지원) 요청들을 처리하는 방식들을 제안하고 각 방식들의 성능을 분석, 비교하였다. 여기서 IP시스템은 우선순위가 있는 서비스 요청과 일반순위의 서비스 요청을 blocked-call-delayed 방식으로 처리하는 큐잉시스템으로 모델링되었고, 서비스가 지연되는 요청들은 유한 크기의 버퍼에 저장된다고 가정하였다. 방식1은 우선순위가 있는 요청만이 저장될 수 있으며, 우선순위가 있는 요청을 위한 별도의 서버를 가지고 있다. 다른 3가지 방식(방식 II,III,IV)들은 우선순위가 있는 요청용 서버를 별도로 두지 않으며, 또한 모든 호들을 저장할 수 있도록 허용하는 대신에 버퍼가 차면 일반요청은 축출될 수 있도록 한 것이다. 이러한 네 가지 방식에 대하여 각각의 블로킹확률과 지연시간 분포를 수치적으로 구해본 결과, 별도의 서버를 두지 않는 방식들이 별도의 서버를 두는 방식보다 블록킹확률면에서 유리함을 알 수 있었다. 또한, 별도의 서버를 두지 않는 방식들이 별도의 서버를 두는 방식보다 블록킹확률면에서 유리함을 알 수 있었다. 또한, 별도의 서버를 두지 않는 방식들의 성능을 비교한 결과, 우선순위가 있는 요청은 first-in, first-out으로 일반요청은 last-in, first-out 방식으로 처리하는 것이 가장 유리함을 알 수 있었다.

• 한국물환경학회지
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• 제34권6호
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• pp.650-660
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• 2018

The objective of this study was to compare the rainfall-runoff characteristics in streams of classified urban and rural watershed using land use and population density. EMC (event mean concentration) of BOD, COD, TP and SS increased significantly in urban and rural watershed, but that of TN remained unchanged. Although there were no significant differences in EMC of BOD, COD, TN, TP depending on the watershed characteristics, EMC of BOD and COD significantly increased in the urban watershed, while EMC of TP increased in the rural watershed. In the urban watershed, the first flush time was faster and the first flush effect was stronger in BOD, COD, and TP. However, the difference between cumulative mass and cumulative volume was found to be less than 0.2 in the rural watershed, indicating a weak first flush effect. The discharged masses of BOD (70 %), COD (64 %), and TP (66 %) in the first flush of runoff were higher in urban watershed, while TN (67 %) was higher in rural watershed. The reproducibility of first flush time and the strength of first flush using CV (coefficient of variation) was found to be more reproducible for first flush time in both watersheds. In rural watershed, the CV value of first flush time for TP out of water quality parameters was lower. Whereas the CV values of first flush time for BOD, COD and TP in urban watersheds were similar.

• 한국생활과학회지
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• 제10권2호
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• pp.225-235
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• 2001

The purpose of this study is to find out the changes for the first birthday's costume in westernizing Korea society of the twentieth century. For this study, I analysed the related literature for the first half the twentieth century due to the lack of relevant photographs, while I used the method of content analysis of 136 photographs for the second half of the twentieth century. According to the analysis of photographs, first birthday's costume for girls dressed up was more different than those for boys. But first birthday's costume items for boys were more than those for girls. Generally first birthday's costume consists of Bokkon Jeonbok Jeogori(Sackdong) and Baji for boy's, Chima and SackdongJeogori for girl's. Because the meanings and look of Hogun, Durumagi, Sagusam, Busun and Baeza are good, those items might be to used for first birthday's costume in the future. To establish better first birthday's culture and costume in Korea, it is important to educate people involved in related business for traditional costume. Because most of first birthday's costume are usually borrowed for photographs. Also item and design for the first birthday's costume should be studied in order to improve traditional cultural products.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 춘계학술대회 논문집
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• pp.1165-1171
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• 2005

After 1974 an EMU, which is the first line opened, the car's term of endurance is introduced, End of life on the step, gradually the rate of cars out of service are increasing. In the country, we consider about recycled source, aspects of social economic of cars out of service and so on, treat efficiently and reasonable. According to research first we make investigations about the present situation and the actual condition of cars out of service then we should lay out schemes efficiently.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 추계학술대회 논문집
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• pp.15-20
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• 2005

This is a comparative study where we compare simulation results with model examining the time and direction the fire spreads when it breaks out. Also there is vertical distribution of temperature in carriage where the fire spreads out. This study is about demonstrating how to establish smokeless system in urban vehicle, about its necessity, and about vehicle system restructuring, This study also makes an effort to find more advanced method for efficient fire safety in trains, In existing vehicles, in case of fire, the smoke can't go out when doors are closed and hence it spreads in whole train. Even though the method of using ventilation or exhaust established inside the carriage to throw smoke out is much better than the way of opening end doors in each carriage, this study is trying to do research on second way. Through simulation we see that in second case, even though not as good as the first one, smoke can exit through gates. Even though the first method is better, the second can also be uses to let fire out. We can know that in the first case as the smoke can exit out faster, it provides more safety for people. So this system provides better fire safety condition.

• 대한한의학원전학회지
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• 제21권4호
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• pp.75-83
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• 2008

Based on the sentence "The number of my family member and relatives reached around 200, but since the first year of Geonan(建安) era, two thirds of them died and seven out of ten died of cold damage in less than ten years" in Sanghanjapbyeongron(Treatise on Cold Damage and Miscellaneous Diseases), which is allegedly known to be written by Jangnunggyeong(張仲景), we analyzed the sentence by three factors of time, location and people. These factors are used in the investigation of the disease outbreak, and through this analysis, following conclusions were made. 1. Approximate 10 year crude mortality rate since A.D 196(the first yea of Geonan era) in Jangsa(長沙) province was 67 out of 100 in the population. Approximate 10 year disease-specific mortality rate of cold damage since A.D 196(the first yea of Geonan era) in Jangsa(長沙) province was 47 out of 100 in the population. Regardless of age, gender or other demographic variables, approximate 10 year proportionate mortality ratio since A.D 196(the first yea of Geonan era) in Jangsa province was 70.2%, which lead to the assumption that 70% of death is cold-damage related. 2. Increased disease-specific mortality rate by cold damage in Jangsa(長沙) province for about 10 years since A.D 196(the first yea of Geonan era), and followed increased crude mortality rate in the population, threatened the stability of nation or local government. This is due to the repeated war in late Han Dynasty with political chaos and repeated flood caused by geographical disadvantage in Jangsa province.

• 한국의류학회지
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• 제17권4호
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• pp.550-564
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• 1993

The purpose of this study is to investigate the consumer's claims related to clothing merchandise. By th origination stage of claims, details of claims, and treatments of claims purchasing places of clothing merchandise, the consumer's claims are analyzed which were lodged to in consumer's complaint center, Seoul YWCA, in 1981-1990. To analyze these data statistically, frequency and percentile are used. The results of analysis for consumer's claims are as next : 1. Concerning the sex distinction, female complainers are more than male complainers. About the age bracket, twenties and thirties are the most numerous. The originations of claims being various. It is laundry and dry cleaning stage out of them that rank first, and total numbers of claims for clothing products continually have increased during 1981-1990. Out of the clothing items, outerwears are of the first rank and formal wear and coat are highest in rank of outerwears. For claims about purchasing places, agency ranked first and market, department store, custome-made and discount store came after in order. 2. Concerning the contents, quality of clothing product ranks first, inferior service, price, contrast, unfair transaction ranks in order. There are claims about quality of clothing product that color change ranks first and damage and form change rank in order. 3. The treatments of claims are that counsel, exchange, refund, repair and correction rank in order.

• 한국산학기술학회논문지
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• 제10권3호
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• pp.521-528
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• 2009

본 연구는 일체형 곡물 건조/저장 시스템에 채용되고 있는 Straight Type Sweeping Auger에 대한 성능과 적합성 검사를 실험을 통하여 검증하였다. 일체형 곡물 건조/저장 시스템의 핵심 기술은 선입선출을 가능토록 하는 Sweeping Auger의 설계기술에 있다. 바람직한 Sweeping Auger의 설계방향을 제시하기 위하여 Straight Type Sweeping Auger가 곡물 속에서 회전할 때 원주면에서 유동하는 곡물의 거동을 알아보기 위한 실험을 실시하고 결과 분석을 통하여 원인규명을 하였다.

• 대한가정학회지
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• 제42권1호
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• pp.69-79
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• 2004

This study has examined factors of young married women's new entry in labor market after the birth of their first child. For the dynamic analysis, the Cox Regression Hazard Model is applied. The following results are obtained： First, about 33％ of married women who did not have a job at the pre-birth enter in labor market at the post-birth. Second, compared to those out of the labor force, women who succeeded in finding their first jobs after the birth of their first child are more likely to be younger, have baby-sitters, have working experiences in the past, and have lower level of household income. Third, age, having baby-sitter and the experience of job transition are vital factors in entering the labor market after the first child birth.

• 인문언어
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• 제8집
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• pp.241-263
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• 2006

Place names are generally composed of first half and second half, whether the originality of those names comes from Korean or Chinese. The first half, modifying the second half, represents the naming flexibility of the name, while the second half of the name points out its directive object, which refers to a branch of the name. For example, 'Myeong' in 'Myeongryang' and 'No' in 'Noryang' represent their naming flexibility while 'Ryang', constituting the second half, points out the name's directive object. The purpose of this study was to investigate the etymology of place names, 'Myeongryang' and 'Noryang', by figuring out the meanings of those two elements. In order to search for the meaning of the second half, 'Ryang', other examples presented in the related literature have been examined. The finding indicated that 'Ryang' means 'dol', or 'do', which refers to 'moon(door)'. Furthermore, it is found out that the meaning of 'Ryang' has been transferred from 'dol' or 'do' to 'moon(door)', furthermore, to the straits. Upon looking into the origins of those names on the field, it is interpreted that 'Myeong Ryang' has been meant as a door in which huge and rough waves cry out, and 'No Ryang' has been meant as a door in which huge and rough waves rise up.