• KOREAN JOURNAL OF CROP SCIENCE
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• v.35 no.1
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• pp.10-15
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• 1990

These experiments were conducted to investigate the effect of day length on some chracteristics and seed weight in the soybean cultivars. Those were classified into three type's of seed weight with delaying seeding date in the previous paper. Flowering was delayed as the longer day length was employed. When the length became longer. the number of leaves at flowering greatly length of main stem and the number of nodes at maturity greatly increased. The seed weight decreased when the day length was longer than 14 hours. Negative correlation was obtained between seed weight and day length. There was negative correlation between seed weight and the number of days required to flowering, and length of main stem and the number of nodes at maturity. Type I cultivars decreased in seed weight when the day length was longer than 16 hours, but this trend was found to be clear with type II cultivars. Type III cultivars decreased in seed weight with increasing the day length.

• 한국노년학
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• v.40 no.1
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• pp.23-32
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• 2020

The purpose of this study is to identify lifestyle types for Koreans' time use through the 2014 National Time Survey. In this 2014 national life time survey data, the required maintenance time, mandatory time, and free time presented in the triangle model were divided into three areas, and compared and analyzed by age and region. In this type of lifestyle, teenagers, people in their 20s and 50s were given reasonable life-seeking, people in their 30s and 40s were given achievement-seeking, and people in their 60s, 70s and 80s were given passive real-life seeking. The required maintenance time of each regional lifestyle activity was Jeonbuk, Ulsan, and Gangwon took up the most time during free time. The higher the age, the higher the satisfaction level of each age, the higher the satisfaction level of life, while the satisfaction level of each region was the highest in Daejeon and the lowest in Ulsan. The satisfaction level for each lifestyle type was higher, followed by rational life pursuit, achievement pursuit and passive reality. It seems that systematic research on lifestyle will be needed in future studies through the diversification of areas of time, classification according to leisure characteristics, and type of lifestyle.

• Journal of the Society of Disaster Information
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• v.7 no.2
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• pp.161-171
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• 2011

This research puts the purpose in elucidating the effect of participation types of leisure activity and leisure restraints on life quality. To achieve research purpose, questionnaire survey was conducted on 200 subjects who are engaged in private guard companies with ages over 20. Using the collected data, frequency analysis was conducted in order to identify demographic characteristics with SPSS/WIN 17.0V program. In addition, multiple regression analysis was conducted for solving research questions. As a result, sports related participation type had a positive effect on time constraint factor. Meanwhile, hobby related participation type had a positive effect on time and cost constraint, participation type of watching has a positive effect on individual and social constraint. Tour and play related participation type had a positive effect on individual constraint factor. Meanwhile participation type of sociality had a positive effect on individual constraint and hobby factor, but had a negative effect on familial and social constraint. Sports related participation type had a positive effect on social relationship factor. Participation type of watching and play related participation type had a negative effect on family relationship. Finally, time constraint factor had a positive effect on family relationship, and cost constraint factor had a positive effect on entire quality of life. Individual and family constraint factors had a negative effect on leisure relationship factor. Also, social constraint factor had a positive effect on family relationship, but had a negative effect on leisure relationship.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.103-109
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• 2020

The aim of this research is to investigate the effect of how individuals monitor the time in their life on persuasion and the moderating role of goal orientation and types of persuasive message in the relationship between time monitoring and persuasion. By controlling participants' time horizon perspectives (THPs), an experiment using a 2 (THP: limited vs. expansive) × 3 (goal orientation: approach vs. avoidance vs. control) × 2 (message type: emotional vs. knowledge-related) between-subjects design was conducted.. Results showed that when participants with limited THP, those who oriented avoidance goals were more favorable to knowledge-related messages, whereas those who oriented approach goals preferred emotional messages. Participants with expansive THP were more persuaded by knowledge-related messages, regardless of pursuing goal types.

• Journal of Energy Engineering
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• v.10 no.1
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• pp.71-81
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• 2001

수요증가 지속과 에너지 산업 구조개편에 따른 발전용 수요의 수급조절역할의 축소로 인해 도시가스 수요 관리에 대한 필요성이 높아지고 있다. 이에 본 연구에서는 도시가스 수료관리를 몇가지 유형으로 분류하고 각 유형별로 가스부문투자(LNG 저장설비소요)에 미치는 영향을 분석할 수 있는 모델을 제시하고 그 검증을 통해 향후 도시가스 수요 관리 시행전략의 수립방향을 제시하고자 한다. 수요관리별 개별효과를 비교하면 동일한 목표율일 경우 최대수요억제가 가장 효과적인 것으로 검증되었으며, 적은 수요물량조정으로 큰 효과를 나타내는 수요관리 유형은 기저부하증대였다. 또한 수요관리전략을 복합하여 시행할 경우, 기저부하증대는 다른 수요관리수단과 같이 실시하여 더 큰 감축효과를 가져왔으나, 전략적 부하창출과 최대수요억제를 동시에 시행하면 그 효과가 상쇄되는 것으로 나타났다. 결론적으로 기저부하증대를 기본으로 하여 전략적 부하창출과 최대수여억제 조치를 시간적인 차이를 두고 시행하는 것이 좀더 효과적일 것으로 검증되었다.

• Proceedings of the Korean Information Science Society Conference
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• 2000.04a
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• pp.621-623
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• 2000

대규모 분산 공유메모리 다중처리기는 공유메모리 접근 지연시간이 크다는 약점을 지니고 있다. 이러한 다중처리기에서 모든 메모리 요청이 홈노드를 통해 이루어지는 디렉토리 기반의 캐쉬 일관성 유지 기법의 사용은 메모리 접근 지연시간을 더욱 크게하는 요인으로 작용한다. 뿐만 아니라 메모리 접근 지연시간은 시스템의 규모가 커질수록 전체 성능에 중요한 요소로 작용하므로, 대규모 시스템에서 이를 줄이기 위해서 많은 연구들이 있었다, 본 논문에서는 메모리 읽기 지연시간을 줄이는 새로운 캐쉬 일관성 유지 기법을 제안한다. 제안된 기법은 적응적 메모리 갱신을 이용하여 구현되었다. 적응적 메모리갱신은 홈노드의 메모리를 미리 갱신함으로써 읽기 접근 지연시간을 줄이는 방법이다. 이를 위해서 홈노드는 메모리 접근 유형을 분석해야 한다. 대부분의 공유메모리 접근은 일정한 유형을 지니므로 이를 토대로한 홈노드의 갱신은 높은 적중률을 보인다. 제안된 프로토콜의 성능을 측정하기 위하여 모의실험을 하였다. 모의실험 결과는 제안된 프로토콜에서 읽기 지연시간과 실행시간이 감소하는 것을 나타낸다.

• 한국노년학
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• v.40 no.4
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• pp.781-800
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• 2020

This study aims to categorize the daily time use of older adults into different types, examine the factors influencing them and the differences between them by type, and verify the effect of each type on life satisfaction. From the 6th wave of the Korea Retirement and Income Study (KeRIS), analysis was conducted on 3,963 older adults aged 65 (n=3,963). Using Latent Profile Analysis (LPA), three types of daily time use for older adults were identified: basic life maintenance type (16%), free-leisure oriented type (26%), and social activity type (58%). From the results of multinomial logistic regression analysis to identify the factors influencing each type of daily time use, it was found that the main factors influencing free-leisure oriented type, when compared with basic life maintenance type, were the presence of spouse (p<.01) and psychological health status (p<.001). The main factors influencing social activity type, when compared with basic life maintenance type, were age (p<.05), economic activity (p<.001), and chronic disease (p<.001). The life satisfaction seen during free-leisure oriented time and social activity time was higher than that during basic life maintenance time. From these findings, practical and policy proposals were suggested to improve life satisfaction of older adults during basic life maintenance time by pursuing changes in the use of that time.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.12 no.2
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• pp.52-62
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• 2013

Design Hourly Factor(DHF) is defined as the ratio of design hourly volume(DHV) to Average Annual Daily Traffic(AADT). Generally DHV used the 30th rank hourly volume. But this case DHV is affected by holiday volumes so the road is at risk for overdesigning. Computing K factor is available for counting 8,760 hour traffic volume, but it is impossible except permanent traffic counts. This study applied three method to make DHF, using 30th rank hourly volume to make DHF(method 1), using peak hour volume to make DHF(method 2). Another way to make DHF, rank hourly volumes ordered descending connect a curve smoothly to find the point which changes drastic(method 3). That point is design hour, thus design hourly factor is able to be computed. In addition road classified 3 type for national highway using factor analysis and cluster analysis, so we can analyze the characteristic of DHF by road type. DHF which was used method 1 is the largest at any other method. There is no difference in DHF by road type at method 2. This result shows for this reason because peak hour is hard to describe the characteristic of hourly volume change. DHF which was used method 3 is similar to HCM except recreation road but 118th rank hourly volume is appropriate.

• 월간 기계설비
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• s.322
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• pp.112-115
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• 2017

근로기준법상 법정근로간은 1일 8시간, 주40시간입니다. 정부는 4월 14일부터 인사혁신처를 시작으로 금요일 조기퇴근제를 실시할 예정이라고 하는데요. 주40시간 범위내에서 월~목까지 매일 30분씩 연장 근로하는 대신 한달 중 금 1회 오후 4시에 조기퇴근하는 방식으로 운용될 예정이라고 합니다. 공공기관에서는 이미 유연근로시간제가 실시되고 있는 사업장도 있고 별도 연장 근무 없이 Family day 또는 culture day 등으로 명명하고 월 1회 조기 퇴근하는 제도를 운용하고 있기도 합니다. 기존에 자율적으로 기업형편에 따라 실시되었던 유언근로시간제와 더불어 금 조기퇴근제도는 공기업을 중심으로 좀 더 확대될 것으로 보입니다. 다만 국가공무원법이 적용되는 공무원과 달리 민간부문에서 유연근로시간제도를 도입하고자 할 경우에는 근로기준법을 준수하여야 하므로 법률에서 정한 유연근로시간제도의 유형에 따라 취업규칙의 변경 또는 근로자대표와의 서면합의 등의 절차를 거쳐야 합니다. 금요일 4시 조기퇴근제도는 탄력적 근로시간제도의 일 유형이라고 볼 수 있기에 이번 호에서는 탄력적 근로시간제도에 대해 알아보고자 합니다.

• 한국사회정책
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• v.23 no.3
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• pp.17-47
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• 2016

This paper aims to analysis working-time of Korea focusing on "the difference and the distribution" by a stratum. Classifying working-time into four categories including marginal part-time, part-time work, standard-time work and long-time working, it compares the relative distribution by income quintile. The outcome is as following : 20% of low-ranking income quintile are (marginal) part-time working, 60% from income quintile 2 to 4 are in long-time working and 20% of top-ranking income quintile are in the standard-time working in overall. Working-time classes can be divided up into three: short time-low income of type 1, long time-medium income of type 2 and standard time-high income of type 3. Analysing working time type, the low wage-short time, medium wage-long time and high wage-standard time by the wage per month and low wage-very long time, medium wage-long time and high wage-standard time by the wage per hours are confirmed. Also, stratification of working-time has been intensified in terms of age, jobs and work status. Policy implication from this study is that the increase of minimum wage to the lowest income class and creation of employment by the reduction of working-time to the medium income class could be effective policies.