• Title/Summary/Keyword: Exclusion

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An Efficient Mutual Exclusion Algorithm for Hypercube Multicomputers (하이퍼큐브 멀티컴퓨터를 위한 효율적인 상호 배제 알고리즘)

  • Bae, Ihn-Han
    • The Transactions of the Korea Information Processing Society
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    • v.3 no.5
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    • pp.1207-1214
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    • 1996
  • We present an efficient decentralized, symmetric mutual exclusion algorithm for the hypercube architecture. The algorithm is based on the technique which embeds a mesh into a hypercube. We compare the performance of our algorithm with that of Gupta et al.'s algorithm. As a result of performance comparison, the minimum round-trip delay is equal to that of Gupta et al.'s algorithm, the average blocking delay is a little longer than that of Gupta et al.'s algorithm, and the number of messages per access to critical resource is fewer than that of Gupla et al.'s algorithm.

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A Qualitative Research of Relational Aggression of 4-year-olds' Play (만4세 유아의 놀이에 나타난 관계적 공격성에 관한 질적연구)

  • JUNG, Eun-Hee
    • Journal of Fisheries and Marine Sciences Education
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    • v.29 no.1
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    • pp.242-256
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    • 2017
  • The purpose of this study was to describe and understand the characteristics of morphological, contextual as relational aggression among 4-year old children during free play periods. The ethnographic methods included participants observation of children's play interaction behaviors, field notes, video taping and analysis of transcribed date. The results are as exclusion occurred by group power taking the relational attribute, including direct language, while the other would not be revealed easily other than being in line with real relation. Also as follows; proactive relational aggression was more frequently observed in girls, and their major strategies employed against someone they disliked were ignoring them, distorting play-rules, and so on. Major strategies of reactive relational aggression in girls were largely manipulative in nature, for example, 'threatrning their friend' and 'withdrawal of friendship'.

Biosynthetic Regulation of Invertase from Thermophilic and Alkalophilic Bacillus sp. TA-11 (고온성이며 호알칼리성인 Bacillus sp. TA-11이 생성하는 Invertase의 생합성 조절)

  • Kim, Jae-Ho;Kim, Na-Mi;Kim, Dong-Woo
    • The Korean Journal of Food And Nutrition
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    • v.15 no.2
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    • pp.126-130
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    • 2002
  • Regulation of invertase biosynthesis was studied in thermophilic and alkalophilic Bacillus sp. TA-11. Biosynthesis of the invertase was effectively induced in the presence of 10 mM sucrose for 180 min. Glucose repressed the invertase induction by sucrose and as late as addition time of glucose, the invertase formation was increased, indicating that glucose repression was occurred by inducer exclusion. Catabolite repression was reduced a little by the addition of cAMP for 180 min of induction.

Aesthetic Characteristics of Yohji Yamamoto's Works -Focused on Aesthetic Characteristics of Traditional Costume- (Yohji Yamamoto 작품에 나타난 미적특성 - 전통복식 미적특성을 중심으로 -)

  • Yaung, Hyeon-Ju;Cho, Youn-Joo
    • Fashion & Textile Research Journal
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    • v.4 no.4
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    • pp.339-346
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    • 2002
  • This study analyzed the works, introduced in the collections of Yohji Yamamoto in an aim to identify traditional aesthetic and design concepts. As the data to study the concept and expression of the designer, fashion photographs were gathered in a focus on collections since 1990's. The traditional aesthetic expressed in the works of Yohji Yamamoto were characterized by the external aesthetics and the internal aesthetics. The traditional aesthetic of external aesthetics were classified into the plasticity and the wearing, and those of internal aesthetics were divided into the moderation, expertness and aesthetic exclusion. The plasticity was extracted into line, form and color. The wearing was presented artist of purpose through the mutual text. The moderation was based on the moral goodness and the aesthetical beauty. The expertness represented the fitting method and mutual reaction of color. through the natural beauty. The aesthetic exclusion was expressed through simplicity, loftiness, and unbalance.

Home Care Nursing: An Economic Analysis (가정간호의 경제성 평가에 관한 문헌분석)

  • Lim, Ji Young;Kim, Ji Young
    • Journal of Home Health Care Nursing
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    • v.20 no.2
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    • pp.141-151
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    • 2013
  • Purpose: The purpose of this study was to examine the economic effectiveness of by conducting a literature review of published articles, masters theses, and doctoral dissertations. Method: Prior to the literature review, inclusion-exclusion criteria were established. We then reviewed 1,029 CINAHL, MEDLINE, and Cochrane DB papers, and 153 RISS papers collected between Results: A total of 12 studies met the inclusion-exclusion criteria.-effectiveness: 6 cost-effectiveness studies, 1 cost-utility studies, and 5 cost-benefit studies. Each of the 12 reviewed studies concluded that home care nursing had greater economic benefits than other compared healthcare services. Conclusion: Home care nursing has significant economic benefits in multi health care service settings and for various patient groups. Therefore these results will be used a critical evidence for the development of economically effective home based health care systems for future policy making.

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Studies on the Separation Performances of Chlorophenol Compounds from Water by Thin Film Composite Membranes

  • Yogesh, K.M. Popat;Ganguly, B.;Brahmbhatt, H.;Bhattacharya, A.
    • Macromolecular Research
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    • v.16 no.7
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    • pp.590-595
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    • 2008
  • The pressure driven membrane process has been a breakthrough in the removal of pollutants from drinking water. These experiments examined the removal of chlorophenol compounds from water using low pressure membranes. The removal performance of the membranes was based primarily on size exclusion. Apart from size exclusion, the polarity and pKa of the compounds also influences the membrane performance. The molecular size and dipole moments of the respective molecules were calculated using a quantum chemical method. The rejection of pollutants also followed the same trend as salt rejection by the membranes.

Software developers have experienced social exclusion impact on quality of information systems (소프트웨어 개발자가 겪는 사회적 배제가 정보시스템 품질에 미치는 영향)

  • Lee, Rae-Chun;Park, Koo-Rack
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2014.07a
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    • pp.119-122
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    • 2014
  • 현대에 들어 IT 시장은 경쟁이 더 심화되고 있기 때문에 IT기업의 고용형태가 다양해지고 있고, 이에 따라 관련 기업의 수나 정규직 일자리는 두드러지게 감소하고 있다. 따라서 비정규직 근로자는 상대적으로 증가하고 있고, 고용 불안정과 열악한 근무 여건 때문에 사회적 배제를 겪을 가능성이 크다. 우리나라에서는 IT종사자의 사회적 배제가 정보시스템 품질에 미치는 영향을 다룬 연구는 드물다. 이에 따라 본 연구에서는 IT종사자를 대상으로 사회적 배제와 정보시스템 품질 사이의 관계를 실증적으로 살펴보았다. 조사 결과, IT종사자의 사회적 배제는 정보시스템 품질에 유의미하게 영향을 미치는 요인으로 나타났다.

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Analyzing Market Integration of Wild Caught Fish Species (자연산 어류의 시장 통합성 분석)

  • Kim, Do-Hoon
    • The Journal of Fisheries Business Administration
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    • v.44 no.1
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    • pp.71-79
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    • 2013
  • This study is aimed to estimate market integration of wild caught fish species on the Korean market, using both multivariate and bivariate cointegration analysis. For the analysis of market integration between wild caught fish species, major four fish species those are most popular fish in the market and caught by the large purse seine fishery-chub mackerel, jack mackerel, hairtail and spanish mackerel-were selected as analytical target fish species. And their real monthly price data from January 2000 to December 2011 were used in the analysis. The results of the multivariate cointegration test for four wild caught fish species showed that there would be long-term equilibrium relationships among prices of four wild caught fish species, and consequently, the markets for wild caught fish species were estimated to be integrated. The results of exclusion test and bivariate cointegration test also supported that there would be a clear evidence to suggest that all target wild caught fish species were cointegrated each other.

Mutual Exclusion of Lock Waiting Information for Deadlock Detection (교착(交錯) 상태(狀態)의 검출(檢出)을 위한 락 대기(待機) 정보(情報)의 상호(相互) 배제(排除))

  • Kim, Sang-Wook;Yeom, Sang-Min;Jang, Yoen-Jung;Kim, Yoon-Ho
    • Journal of Industrial Technology
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    • v.18
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    • pp.355-362
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    • 1998
  • The deadlock detector is a DBMS sub-component that examines periodically whether system is in a deadlock state based on lock waiting information of transactions. The deadlock detector and transactions execute concurrently in a DBMS and read and/or write the lock waiting information simultaneously. Since the lock waiting information is a shared one, we need an efficient method guaranteeing its physical consistency by using mutual exclusion. In this paper, we propose a new method that effectively guarantees physical consistency of lock waiting information. Two primary goals of our method is to minimize the processing overhead and to maximize system concurrency.

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Mutual Exclusion Algorithm for Group Integration/Disintegration (그룹의 통합과 분리를 고려한 상호배제 알고리즘)

  • Yoon Jae-Hee;Kim Jai-Hoon
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.07a
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    • pp.745-747
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    • 2005
  • 컴포넌트 기반 미들웨어에서 기본 단위를 이루는 컴포넌트가 특정 동일 목적을 위하여 그룹을 생성하고 정해진 서비스를 제공할 수 있다. 이렇게 생성된 그룹은 멤버들간에 리소스를 공유하는데, 이에 따른 상호배제(mutual exclusion) 문제가 그룹 멤버들 사이에서 발생한다. 커뮤니티 컴퓨팅과 같은 그룹 서비스에서는 환경이 다양하고 변화가 심하기 때문에 그룹의 구조 또한 생성, 삭제, 통합, 분리가 빈번히 일어난다. 본 논문에서는 분산 시스템에서의 상호배제 알고리즘을 컴포넌트 기반 미들웨어에서 생성된 그룹에 적용하고, 상호배제 기법이 적용된 상태에서 그룹이 통합하거나 분할될 때 상호배제의 일치성을 유지 할 수 있는 방법을 제시하였다.

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