• Journal of Plant Biology
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• 제36권2호
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• pp.159-170
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• 1993

We investigated the effects of maternal and paternal parentage, and ovule position in a pod on seed development, weight, and progeny performance, using an annual crop commonly called cowpea (Vigna unguiculata L.). The experiment was conducted in a greenhouse. Nine maternal parents were randomly selected, and 3 individuals were chosen as paternal parents based on the male fitness components. Five types of hand-pollination were attempted on each flower of the maternal plants to evaluate the influence of paternal identify. Independent variables such as parentage and ovule position affected the pattern of seed development. Ovules in the middle position of the pod exhibited a much higher probability of seed maturation than those at the stylar and basal positions, confirming the position effect. These independent variables also appeared to exert a significant effect on seed weight, although it was not possible to evaluate the relative importance of those variables due to a significant interaction between parents. Mixed pollination tended to yield heavier seeds than other paternal parents. Ovules in the middle and basal end positions produced heavier seeds than those at the stylar end regardless of maternal and paternal parentage. Seed weight was independent of all measurements of progeny performance. At week 2 after germination significant paternal effects were found to be mediated through the ovule position in a pod. In particular, the progeny derived from self-pollination performed worse than the progeny from other paternal parentage. The progeny performance at week 4 after germination was affected by maternal parents independently of seed weight. These results show that paternal and maternal effects were quite consistent from the seed development to early growth of the progeny. Consequently, maternal and paternal effects on seed development and weight, and progeny performance may reflect, at least to some extent, genetic contribution of both parents. If so, it is possible for sexual selection on maternal and paternal function to generate the evolution of reproductive traits related to seed production.

• 한국컴퓨터산업학회논문지
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• 제3권1호
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• pp.85-94
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• 2002

ATM(Asychronous Transfer Mode) 표준에서 제안된 EMRCA(Explicit Max_min Rate Control Algorithm) 스위치 방식은 ATM 네트워크에서 ABR(Available Bit Rate) 서비스 트래픽을 제어한다. ATM 네트워크의 ABR 서비스 분류는 다양한 링크 용량에 적용하기 위하여 피드백 제어 방식을 사용한다. VS/VD(Virtual Source/Virtual Destination) 기법은 다른 종단간 ABR 제어 루프를 격리된 루프들로부터 분리할 수 있도록 해준다. 피드백 지연과 내부적으로 폐쇄된 구간을 갖는 ABR 트래픽 제어는 처리량, 지연 그리고 지터 등을 고려한 ABR 접속에 있어서 보다 나은 성능과 QoS(Quality of Service)를 제공한다. 본 논문은 ABR VS/VD 흐름 제어 방식에 관한 연구이다. 매개변수를 정확하게 선택하고 시스템의 안정성과 같은 성능을 평가하는 수단을 제공하기 위하여 선형 제어 이론을 사용하여 모델링 하였다. 성능 개선의 목적은 높은 링크 이용율과 공정한 대역폭 분배 그리고 안정된 동작등이며 이는 이산 사건 시뮬레이션을 하였다. 본 논문에서는 VS/VD 스위치의 특수한 레이아웃에 맞춘 ABR 흐름 제어 방식의 설계에 선형 제어 이론을 사용한 것이며 시뮬레이션을 하여 기존의 폭주 제어 방식보다 우수함을 보였다.

• 한국컴퓨터정보학회논문지
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• 제13권5호
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• pp.195-202
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• 2008

본 논문에서는 무선 센서 네트워크 보안 강화의 효율성을 높이기 위한 클러스터된 이기종(heterogeneous) 무선 센서네트워크 구조를 제안하였다. 본 논문에서 제안된 무선 센서 네트워크 구조는 리소스의 제한이 있는 센서 노드와 클러스터 헤드의 역활을 하는 다수의 강력한 하이엔드 장치들로 구성된다 하이엔드 클러스터 헤드는 센서 노드보다 계산량, 저장공간,파워 공급, 무선 송신 범위가 뛰어나기 때문에 센서 노드가 겪는 자원의 부족으로 인한 문제점이 발생하지 않는다. 제안된 이기종 무선 센서 네트워크의 구조는 클러스터 헤더에 신뢰 컴퓨팅 기술이 접목되어 있는 것을 특징으로 하며, 특히 각 클러스터 헤더에 신뢰 컴퓨팅 그룹에서 정의한 표준을 따르는 신뢰 플랫폼 모듈이 포함되어 있다. 신뢰 컴퓨팅 그룹에서 정의한 표준에 의하면, 신뢰 플랫폼 모듈은 암호 연산을 수행할 수 있으며 외부 공격으로부터 내부 데이터를 보호할 수 있는 하나의 독립적인 프로세서이다. 또한 호스트에 포함된 신뢰 플랫폼 모듈은 데이터를 안전하게 저장하는 기능과 호스트의 상태를 측정하고 이를 보고하는 기능을 제공함으로써 신뢰 컴퓨팅이 가능하도록 한다.

• 수완나부미
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• 제8권1호
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• pp.121-146
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• 2016

Defining key characteristics of Southeast Asia requires historical interpretation. Southeast Asia is a diverse and complicated region, but some of modern history's "grand narratives" serve to unify its historical experience. At a minimum, the modern history of the region involves decisive encounters with universal religions, the rise of Western colonialism, the experience of world wars, decolonization, and the end of the "cycle of violence". The ability of the region's peoples to adapt to these many challenges and successfully build new nations is a defining feature of Southeast Asia's place in the global stage. This paper will begin with a question: is it possible to develop a hermeneutic of "expedience" as a way to interpret the region's history? That is, rather than regard the region from a purely Western, nationalist, "internalist" point of view, it would be useful to identify a new series of interpretative contexts from which to begin scholarly analysis. In order to contextualize this discussion, the paper will draw upon the writings of figures who explored the region before knowledge about it was shaped by purely colonist or nationalist enterprises. To this end, particular attention will be devoted to exploring some of John Furnivall's ways of conceptualizing Southeast Asia. Investigating Furnivall, a critic of colonialism, will be done in relation to his historical situation. Because Furnivall's ideas have played a pivotal role in the interpretation of Southeast Asia, the paper will highlight the intellectual history of the region in order to ascertain the value of these concepts for subsequent historical interpretation. Ultimately, the task of interpreting the region's history requires a framework which will move beyond the essentializing orientalist categories produced by colonial scholarship and the reactionary nation-building narratives which followed. Instead, by beginning with a mode of historical interpretation that focuses on the many realities of expedience which have been necessary for the region's peoples, it may be possible to write a history which highlights the extraordinarily adaptive quality of Southeast Asia's populations, cultures, and nations. To tell this story, which would at once highlight key characteristics of the region while showing how they developed through historical encounters, would go a long way to capturing Southeast Asia's contribution's to global development.

• Asia pacific journal of information systems
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• 제23권1호
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• pp.65-86
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• 2013

Understanding success factors in electronic banking is important to helping banks succeed. In this study, we extend DeLone and McLean's IS success model to the electronic banking by adding trust as a success variable. We tested the extended model by comparing internet banking and mobile banking in Indonesia. Using a structural equation modelling approach. We found that system quality had positive impacts on perceived usefulness and end-user satisfaction for both internet banking and mobile banking. The development of e-banking (internet banking and mobile banking) in Indonesia is in its initial stage. Finally, although we tested for the common method bias to relieve concern, further research may use multiple methods when collecting the data. This study investigated the role of each dimension of IS success in the electronic banking environment. While the original IS success model emphasizes individual and organizational impacts, we have argued that trust is an important indicator of IS impact on an individual socially in the banking industry. The contribution of our study is two-fold. Conceptually, the study is the first to extend the IS success model to the e-banking context. We provide an extension of the updated IS success model by adding trust as an outcome variable in the research model.

• 한국의상디자인학회지
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• 제20권1호
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• pp.17-28
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• 2018

This study reviewed corporate social responsibility activities of fashion companies and discussed strategies of social enterprises. The research was conducted on 6 Korean fashion companies with sales over KRW 1 trillion as of the end of the term in 2015. Corporate social responsibility activities of each company were investigated from economic, social and environmental viewpoints. The results of this study were as follows: First, each company promoted win-win growth, co-existence management, transparent management and ethics management through economic activities. They pursued win-win growth and co-existence management, which aimed to respect and grow with their partners. Also, they ensured transparent management and ethics management to show their moral management. Second, each company conducted various social contribution programs as part of their social activities. Through the programs, they made donations, supported welfare and culture, and practiced voluntary work, local activities, training and equal opportunities. Third, as for environmental activities, each company tried to protect nature through various activities such as donation to environmental organizations, environmental cleanup activities, environmental management from production to disposal, reuse, eco-friendly system, environmental volunteering, etc. Articles on fashion companies' social responsibility activities have an influence on boosting their attitude and image towards businesses.

• 한국대기환경학회지
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• 제20권1호
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• pp.87-97
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• 2004

NMHC (non-methane hydrocarbons) and fine particles such as P $M_{10}$ and P $M_{2.5}$ were measured at KIST (Korea Institute of Science and Technology) in Seoul for a month from the end of May. At the beginning of June, peak ozones exceeded 100ppb both near KIST and in Seoul while ozone and fine particles decreased from the middle of June due to frequent precipitation. Because the measurement site was close to trees on a hill, isoprene concentration went up to 4.1ppb with an average of 0.76ppb. Toluene was the highest all day long, but particularly high concentration in the afternoon implied a contribution of emission from solvent use as well as vehicle exhaust. Eighty-five percent of P $M_{10}$ was P $M_{2.5}$ on an average since major ions except sea salt, including nitrate, were present within P $M_{2.5}$. Daily variations of pollutants were generally similar except for NMHC. One of major differences in NMHC variation was maintenance of a relative high concentration in rainy day, showing that NMHC were not effectively scavenged by precipitation.ion.ion.

• Journal of Advanced Marine Engineering and Technology
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• 제31권3호
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• pp.215-223
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• 2007

When the propulsion shafting system of marine diesel engine is designed. the vibratory stresses on shafts should be reviewed and be satisfied with limits which are laid down by classification societies In addition. the torsional vibration aspects for crankshaft of main engine are requested to be checked by engine designers. Especially. for the 4, 5, and 6-cylinder engines. the 2nd order moment compensator(s) may be installed to compensate the external moments of engine and not to excite the hull girder vibration. This moment compensator which is mounted on fore and/or after-end of engine is driven by the roller chain drive for some of MAN 2-stroke diesel engines. While the engine is running, the roller chain Is worn down, which causes the extension of roller chain. The chain therefore should be checked and tightened by periods in order to keep its functionality. However. when the torsional angular acceleration of chain drive exceeds the certain limit. the chain will suffer the excessive slack and transverse vibration. This may cause fatigue, wear or damage on the chain and the chain ultimately may be broken. The research object of this thesis is to review factors which affect the angular acceleration of chain drive and to find out how to decrease the angular acceleration of driving chain by checking factors which have a major contribution to acceleration reduction using the statistical method of DOE(design of experiment), correlation analysis and regression analysis methods.

• 한국의류학회지
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• 제21권1호
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• pp.144-154
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• 1997

For design of early childhood children's footwear, this study was to analyze the foot type by factor analysis and cluster analysis. This study was performed 200 male and 200 female early childhood children from 3 to 6 years, reported in part 1. The result was as follows : 1. There are no significant differences concerning significances, factor loading, eigenvalues, and contribution rates of factor among the results abtained by analyzing the male, female and both sexes data. 2. The 1st factor signifies the size factor that represents total foot mass. The average scores of the 1st factor significantly increase with age in both sexes, and those scores of male are significantly higher than those of female. 3. The End factor signifies the height of Tarsal, Heel and Arch. The average scores of the 2nd factor significantly increase with age in both sexes, and there are no significant differences between the average scores of male and female's except the age 3. 4. The 3rd factor signifies the shape of Metatarso-phalanx angle. The average scores of the 3rd factor significantly decrease with age in female. 5. There are four clusters selected by fastcluster in every age group. The characteristics of four clusters of every age group are different significantly.

• Journal of Hospice and Palliative Care
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• 제14권3호
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• pp.138-143
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• 2011

한국의 호스피스는 짧은 시간에 많은 발전을 이루었고 그 밑바탕에는 외국 전문가들의 도움에 힘입은 바 크다. 이제 한국의 경제규모가 상당히 커져서 한국은 원조를 받는 나라에서 원조를 주는 나라로 바뀌었으며, 한국의 호스피스도 국제사회의 발전에 공헌할 노력을 해야 할 때가 되었다. 그렇게 함으로써 우리나라 환자들 뿐만 아니라 고통 받는 이웃의 고통을 돌아보고 그들이 고통에서 벗어나 인간으로서의 존엄성을 끝까지 유지하면서 살다가 편안한 임종을 맞이할 수 있도록 도울 수 있다. 그렇게 되기 위해서 우리가 국제사회에 어떻게 공헌할 수 있는지 깊이 생각해 보고 실행해야 하겠다.