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Multi-Exchange Neighborhood Search Heuristics for the Multi-Source Capacitated Facility Location Problem

  • Chyu, Chiuh-Cheng;Chang, Wei-Shung
    • Industrial Engineering and Management Systems
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    • v.8 no.1
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    • pp.29-36
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    • 2009
  • We present two local-search based metaheuristics for the multi-source capacitated facility location problem. In such a problem, each customer's demand can be supplied by one or more facilities. The problem is NP-hard and the number of locations in the optimal solution is unknown. To keep the search process effective, the proposed methods adopt the following features: (1) a multi-exchange neighborhood structure, (2) a tabu list that keeps track of recently visited solutions, and (3) a multi-start to enhance the diversified search paths. The transportation simplex method is applied in an efficient manner to obtain the optimal solutions to neighbors of the current solution under the algorithm framework. Two in-and-out selection rules are also proposed in the algorithms with the purpose of finding promising solutions in a short computational time. Our computational results for some of the benchmark instances, as well as some instances generated using a method in the literature, have demonstrated the effectiveness of this approach.

A Study of Clothing Recorded in『Shin Ching』(I)-About the men's Costume- (『시경』에 나타난 복식자료 연구(I)-남자복식을 중심으로-)

  • 김문숙;이순원
    • Journal of the Korean Society of Costume
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    • v.36
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    • pp.121-137
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    • 1998
  • This paper is a study of clothing recorded in$\boxDr$Shin Ching$\boxUl$.$\boxDr$Shin Ching$\boxUl$is the oldest poetry, which written in early west-Zhou to mid Spring and Autumn Period. In this book, clothing is classified with men's women's and fabrics. But only the men's costume is included in this paper, and others will be studied later. As a result, men's clothing includes Qui, Mian Fu, Bian Fu, Yi Shang, Po, Ze, the armour, the belt ornaments, the hair ornaments and the hair styles, the shoes. 1. Qui is depicted at 11 poetries. It's materials are sheep, wolf, bear etc. The materials and color are differentiated according to the class. 2. Mian Fu is depicted at 20 poetries. There are depictions about the embroidered black garment and a red skirt, and also about inner blouse, Chong er, Chi xi etc. 3. Bian Fu is depicted at 5 poetries and there are three types. 4. Yi Shang is depicted at 9 poetries and classified with two types. One is twp piece style, and the other is one pieced style. 5. Po and Ze is depicted at 1 poetry. Po is sa long coat with lining and Ze is a under-wear. The armour and the helmet are depicted at 2 poetries. 6. The belt ornaments are classified with two styles. One is decorational and the other is practical. At 7 poetries they are depicted. 7. The hair ornaments includes a hat and a hair style. Also, the shoes are depicted and there are two styles. Such a results can clarify the men's costumes of Zhou and may be a raw datas about the costumes of old China.

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Effects of Various Addition and Exclusion Time of Glucose on Development of Mouse Two-Cell Embryos

  • Park S. B.;Park K S.;Lee T. H.;Chun S. S.;Kim K S.;Song H. B.
    • Reproductive and Developmental Biology
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    • v.28 no.4
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    • pp.227-233
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    • 2004
  • This study was conducted to investigate the effect of various addition and exclusion time of glucose (Control: no addition, A: 24~72 h, B: 24~48 h, C: 48~72 h, D: 0~72 h, E: 0~48 h, F: 0~24 h and 48~72 h, G: 0~24 h) on embryonic developmental capacity of 2-cell embryos in mice. Developed blastocysts were assessed for mean cell number by differential staining. The zona-intact blastocyst (ZiB) rates were higher (p<0.05) in group B than control. However, the zona-escape blastocyst (ZeB) rates were not significantly different in all groups. At 72 h, total blastocyst (ZiB + ZeB) formation rates were not significantly different in all groups. The mean cell number was not significantly different among all groups. The inner cell mass (ICM) cell number was higher (p<0.05) in group F than control, group A, B and G. The trophectoderm (TE) cell number was higher (p<0.05) in control than group A and D. The %ICM was higher (p<0.05) in group C, D and F than control. The ICM : TE ratio was not significantly different in all groups. Between control and glucose group, no significant difference was observed in the total blastocysts (ZiB + ZeB) formation rates. Also, no significant difference was observed in the mean cell number, ICM cell number and ICM : TE ratio. However the TE cell number was higher (p<0.05) in control than glucose group and %ICM was higher (p<0.05) in glucose group than control. In conclusion, glucose added in culture medium was not inhibitory on blastocyst formation but glucose added for 48 ~72 h in culture medium increases %ICM of blastocysts in mice.

ZeSH-II에 적용된 태양열+지열하이브리드시스템 사례

  • Kim, Yong-Gyeong;Im, Hyeong-Chan;Hong, Seong-Geun;Baek, Nam-Chun
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.40 no.5
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    • pp.50-55
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    • 2011
  • 에너지의 85% 이상이 자립형 주택인 제로에너지솔라하우스에 적용된 신재생에너지 기술 중 태양열+지열 하이브리드 시스템을 소개한다.

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Representation as a symbol of the rhythm of the movie (표현기호로서의 영화적 리듬에 관한 연구)

  • Wang, ze-jun
    • Proceedings of the Korea Contents Association Conference
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    • 2010.05a
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    • pp.494-496
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    • 2010
  • 영화의 리듬은 최종적으로 편집 테이블 위에서 이루어지며 편집 시에는 주요하게 형식상으로 리듬을 처리한다. 형식상 영화 리듬은 내적 리듬과 외적 리듬으로 분류하며 따라서 이 글에서는 주로 영화 내적 리듬과 외적 리듬을 분석하는 각도에서 영화 리듬을 연구하고자 한다.

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