• Title/Summary/Keyword: 린 타임

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Construction Lean Process Development and Application for Field Productivity Improvement (건설 현장 생산성 향상을 위한 Lean 프로세스 개발과 적용에 대한 연구)

  • Kim, Yong-pyo;Jeong, Yong-ho;Lee, Min-jae
    • Korean Journal of Construction Engineering and Management
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    • v.21 no.2
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    • pp.88-97
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    • 2020
  • Practical and efficient application of lean construction, which has been proposed as an alternative to the limitations of traditional construction management methods, was developed to facilitate application on site and improve productivity through the fusion of traditional construction management methods. The concepts of Lean Time and Lean Cycle Time, which are the principles of lean construction, were introduced to eliminate waste and smooth flow production and pursuit of perfection, and the goal of establishing and improving the criteria for measurement and improvement was established and the information collection template was configured and applied to ensure reliability of measurement and analysis. Based on this, the project feasibility, reliability, and continuous improvement process were applied to the Field case to verify its effectiveness.

How to Implement 'Lean' Principles into Software Development Practice?: Visualization of Delays and Defects (린(Lean) 개념을 소프트웨어 개발 방법에 적용하기 위한 사례 연구: 낭비 제거의 가시화를 중심으로)

  • Hwang, Soon-Sam;Kim, Sung-K.
    • Information Systems Review
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    • v.13 no.1
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    • pp.61-74
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    • 2011
  • Software industry still has many deep-seated problems. As a natural consequence, it may have to learn from best practices in more mature industry like manufacturing. An example is 'lean' software development which is defined as translation of 'lean manufacturing' principles to the software development domain. The principles include 'eliminate waste' and 'amplify learning.' It was much asserted that these principles are worth applying. Not much study, however, was done on how to practically implement these principles into software development practice. In this study we attempt to present a method in which project lead time and software defects are regarded as major targets of management and are visualized using Cumulative Flow Diagram. We further applied this method on actual projects. The result confirms that agile is positively effective on reducing wastes.

Development Process Improvement of Open-market System by using Agile Methodology (민첩방법론을 활용한 오픈마켓 시스템 개발 프로세스 개선)

  • Lee, Yong-Hee;Lee, Gun-Ho
    • The KIPS Transactions:PartD
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    • v.17D no.3
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    • pp.203-208
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    • 2010
  • This study improves the productivity of software development of open-market systems using agile methodology. The current processes of an open-market system are analyzed and inefficient processes are identified which are changed by applying the agile practice principles in Lean software. This study analyzes the process lead times and defects after the processes are changed to see the improvement effect.

A Palynotaxonomic Study on the Genus Lilium in Korea (한국산 나리속(Lilium) 식물의 화분분류학적 연구)

  • 이웅빈
    • Journal of Plant Biology
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    • v.35 no.3
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    • pp.205-210
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    • 1992
  • Size>; and sculpture pattern of pollen grains in seven species and two varieties of the genus Lilium in Korea were examined by LM and SEM, and their evolutionary trends were discussed. Lilium species in Korea can be divided into two groups based on pollen morphology: one is small reticulate group with small pollen grains and lumens, which includes L. concolor var. pulchellum and L. callosum; the other is large reticulate group with large pollen grains and lumens, which includes remaining taxa. It is thought that small reticulate group is more primitive than large reticulate group on the basis of tectum coverage. According to the above results and some morphological characters of salles and perianth segments, L. concolor var. pulchellum and L. callosum are very closely related, and they would be treated under the same subsection.ection.

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Development of the procurement system for Just-in-Time Building Construction (건설공사 적시생산(Just-ln-Time)을 위한 조달시스템 개발 - 콘크리트 타설 공사를 중심으로 -)

  • Shin Bong-Soo;Kim Chang-Duk
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.6 s.22
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    • pp.235-244
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    • 2004
  • The effective management of major construction resources is the key to the success in high-rise residential building construction projects. It is even more important and challenging as well especially in CBD(central business district) area under tight project duration since little leeway in interface between construction trades, severe constraints in staging n and heavy demands for lifting among construction resources. In order to meet high demands among major construction resources, highly effective construction resource management information system is required This research develops and provides a system which selects and disseminates these information from each phase of procurement transportation, lift-up and storage for major construction resources This research applies the Kanban system, well recognized material information system technique in automobile manufacturing industry, in concrete work processes. It develops concrete procurement information system utilizing VSM(Value Stream Mapping) and also applies the model in actual super-high rise residential building construction project in order to analyze the benefit of the research model.

제주도를 통과하는 태풍들의 바람 강도 특성

  • Han, Hyeon-Jun;Jeong, Hyeong-Bin;Park, Ja-Rin;Gang, Hyeon-Gyu
    • 한국지구과학회:학술대회논문집
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    • 2010.04a
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    • pp.51-51
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    • 2010
  • 본 연구에서는 태풍 초기화된 수치모델과 AWS (Automatic Weather System) data를 이용하여 제주도를 통과하는 태풍들의 바람 강도 특성을 분석하였다. 태풍이 내습했을 때 제주도 전 지역에서 동시 관측을 하기에는 불가능하다. 따라서 중규모 수치 모델인 Advanced Research WRF v3.0.1을 사용하여 분석하였으며 더욱 정확한 태풍 모의를 위해 Kwon and Cheong (2009)에 의해 개발된 정교한 태풍 초기화 기법을 적용하였다. 태풍 초기화된 자료에 의해 모의된 결과는 The Regional Specialized Meteorological Center (RSMC) Tokyo의 예보 오차와 비교했을 때 더 향상된 결과를 보였으므로 태풍 초기화 기법의 사용은 본 연구에서 하고자하는 태풍들의 바람 강도 분석에 타당하다고 판단하였다. 그리고 모의된 결과는 그에 상응하는 AWS data와의 joint distribution (Moskaitis, 2008) 분석을 통해 비교되었다. 태풍 경로에 따른 제주도 지역의강 풍을 고려하기 위해 각각 제주도의 오른쪽과 왼쪽을 지나가는 2003년 6호 태풍 'SOUDELOR'와 2004년 7호 태풍 'MINDULLE'를 선정하였다. 또한, 모의 결과로부터 제주도 지역에 태풍이 내습했을 때 강풍의 상대적인 크기의 비교를 위해 모의된 태풍의 최대 풍속을 수치 모의로 얻은 10m 바람장의 모든 격자점에 나누어 정규화 하였다. 이를 시간에 대해 평균하여 태풍이 제주도 지역을 통과하는 전체시간에 대한 상대적인 강도 특성을 분석하였다. 수치 모의 결과와 관측 자료와의 joint distribution 분석 결과, 바람의 크기와 경향이 비교적 잘 일치하였다. 강한 풍속과 약한 풍속이 나타나는 지역은 제주도 지역의 주풍향과 지형의 영향에 크게 좌우되었다. 정규화된 바람은 산악의 정상에서 강풍이 관측되고 주 풍향에 대해 풍상측과 풍하측에서 비교적 낮은 풍속이 관측되는 결과를 보였다. 이는 Hoinka (1985)의 산악 위에서의 바람의 특성에 관한 연구에서 얻어진 결과와 유사하다. 서로 다른 경로로 통과하는 두 태풍의 모의 결과에서 제주도의 북서쪽 지역과 남동쪽 지역에서 상대적으로 약한 풍속이 관측되었다. 따라서 해당지역에서는 태풍에 동반되는 강풍의 피해를 적게 입을 것이라는 것을 알 수 있었다.

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Curative Resection of Inoperable, Locally Advanced Gastric Cancer after Neoadjuvant Chemotherapy with Taxotere and Cisplatin (절제 불가능한 국소 진행성 위암 환자에서 Taxotere 및 Cisplatin을 이용한 선행 화학 요법제의 투여 후 근치적 절제가 가능했던 2예)

  • Lee, Han-Hong;Hur, Hoon;Chae, Byung-Joo;Kim, Wook;Jeon, Hae-Myung
    • Journal of Gastric Cancer
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    • v.5 no.1
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    • pp.57-64
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    • 2005
  • At diagnosis, the majority of patients with gastric cancer are found to have local invasion or distant organ metastasis, even though the sole measure for a complete cure is a curative resection. A curative resection is hardly applicable for those with invasion and metastasis; thus, trials with neoadjuvant chemotherapy for downstaging the cancer should be considered. Docetaxel is a semisynthetic taxane that promotes tubulin polymerization and inhibits microtubule depolymerization. In recent studies, many metastatic gastric cancers were treated using neoadjuvant chemotherapy with docetaxel, and the response rates were reported. We report here two cases of locally advanced, non-resectable gastric cancer that were candidates for a curative resection after induction chemotherapy with docetaxel and cisplatin.

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Electron Transport Carrier for the Free Radical Shethna Flavoprotein in Azotobacter vinelandii (Azotobacter vinelandii Shethna Flavoprotein 의 Free Radical 생성(生成)을 위(爲)한 전자전달물질(電子傳達物質)-)

  • Chun, Jae-Kun;Tollin, Gordon
    • Applied Biological Chemistry
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    • v.16 no.1
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    • pp.31-40
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    • 1973
  • Azotobacter vinelandii cell extracts and its variety of purified fractions with regard to their ability to form the redox state of the Shethna Flavoprotein (free radical form FPH.) were studied. A fluorescent flavoprotein (protein I) and a brown protein (protein II) were the most active proteins which were isolated in purified form. The free radical formation activity was substantially decreased during the purification and was completely lost upon storage in a week under nitrogen in a frozenstate. The presence of free flavin (FMN) with NADH enhanced the rate of free radical formation. The reaction of FMN and NADH was found to be catalysed by various cell fractions. A possible role of FMN as a substrate for free radical shethna flavoprotein was investigated. Slower reaction rate of $FMNH_2+Flavoprotein\;(FP){\to}FPH+FMN$ than $FMN+NADH{\to}FMNH_2$, accumulation of $FMNH_2$ ocurred which subsquently caused FPH.

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A multidisciplinary analysis of the main actor's conflict emotions in Animation film's Turning Point (장편 애니메이션 극적전환점에서 주인공의 갈등 정서에 대한 다학제적 분석)

  • Lee, Tae Rin;Kim, Jong Dae;Liu, Guoxu;Ingabire, Jesse;Kim, Jae Ho
    • Korea Science and Art Forum
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    • v.34
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    • pp.275-290
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    • 2018
  • The study began with the recognition that the animations movie need objective and reasonable methods to classify conflicts in visual to analyze conflicts centering on narratives. Study the emotions of the hero in conflict. The purpose of the study is to analyze conflict intensity and emotion. The results and contents of the study are as follows. First, we found a Turning Point and suggested a conflict classification model (Conflict 6B Model). Second, Based on the conflict classification model, the conflict based shot DB was extracted. Third, I found strength and emotion in inner and super personal conflicts. Fourth, Experiments and tests of strength and emotion were conducted in internal and super personal conflicts. The results of this study are metadata extracted from the emotional research on conflict. It is expected to be applied to video indexing of conflicts.