• Title/Summary/Keyword: 장기요소

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Effect of Outrigger Wall Reinforced with Post Tension on Reducing Differential Column Shortening (포스트 텐션으로 보강된 아웃리거 벽체의 부등기둥축소량 저감 효과)

  • Lim, You-Jin;Kim, Han-Soo
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.33 no.4
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    • pp.237-244
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    • 2020
  • This study investigates the effect of the outrigger wall reinforced with post-tension on reducing differential column shortening. Since the outrigger wall is a concrete structure, the effect of its long-term behavior should be considered. The long-term behavior of the outrigger wall increases differential column shortening and decreases the shear force acting on the outrigger. When the stiffness of the outrigger becomes small, the effect of its long-term behavior increases. Furthermore, a method of reinforcing with post-tension to reduce differential column shortening is proposed. Following the analysis, it was confirmed that the post-tension method shows a significant reduction in the differential column shortening. This study shows that the effect of the outrigger wall reinforced with post-tension on reducing differential column shortening increases with the prestressing force of tendon.

The long-term agricultural weather forcast methods using machine learning and GloSea5 : on the cultivation zone of Chinese cabbage. (기계학습과 GloSea5를 이용한 장기 농업기상 예측 : 고랭지배추 재배 지역을 중심으로)

  • Kim, Junseok;Yang, Miyeon;Yoon, Sanghoo
    • Journal of Digital Convergence
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    • v.18 no.4
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    • pp.243-250
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    • 2020
  • Systematic farming can be planned and managed if long-term agricultural weather information of the plantation is available. Because the greatest risk factor for crop cultivation is the weather. In this study, a method for long-term predicting of agricultural weather using the GloSea5 and machine learning is presented for the cultivation of Chinese cabbage. The GloSea5 is a long-term weather forecast that is available up to 240 days. The deep neural networks and the spatial randomforest were considered as the method of machine learning. The longterm prediction performance of the deep neural networks was slightly better than the spatial randomforest in the sense of root mean squared error and mean absolute error. However, the spatial randomforest has the advantage of predicting temperatures with a global model, which reduces the computation time.

Influence Analysis of Food on Body Organs by Applying Speech Signal Processing Techniques (음성신호처리 기술을 적용한 음식물이 인체 장기에 미치는 영향 분석)

  • Kim, Bong-Hyun;Cho, Dong-Uk
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37 no.5A
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    • pp.388-394
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    • 2012
  • In this paper, the influence analysis of food on human body organs is proposed by applying speech signal processing techniques. Until these days, most of researches regarding the influence of food on body organs are such that "A" ingredient of food may produce a good effect on "B" organ. However, the numerical and quantified researches regarding these effects hardly have been performed. This paper therefore proposes a method to quantify the effects by using numerical data, so as to retrieve new facts and informations. Especially, this paper investigates the effect of tomatoes on human heart function. The experiment collects samples of voice signals, before and after 5 minutes, 30 minutes and 1 hour, from 15 males in their 20s who have not abnormal heart function; the voice signal components are applied to measure changes of heart conditions to digitize and quantify the effects of tomatoes on cardiac function.

우리나라 연구윤리 실태와 개선 방안

  • O, Dae-Yeong
    • 대학교육
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    • s.144
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    • pp.36-43
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    • 2006
  • 연구윤리는 학자나 학계에 국한된 문제가 아니다. 만일 부정 연구를 행하는 학자들이 버젓이 행세하고 다닌다면 성실히 연구를 수행하는 많은 학자들의 의지가 꺾이고 학문 발전의 암적 요소가 될 것은 불 보듯 뻔한 일히다. 또한 학문의 지적 경쟁력은 약화되고 사회와 국가의 역량도 더불어 약화될 것이다. 연구윤리를 높이기 위해서는 온정주의나 부실한 논문 관리 시스템, 정량 평가 문제 등을 해결하는 구조적인 차원에서의 접근이 필요하다. 아울러 장기적인 계획을 세우고 관리 인프라를 구축하는 등 정부 차원에서의 노력도 필요하다.

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미래 에너지기술과 신에너지산업

  • 장기헌
    • Journal of Energy Engineering
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    • v.8
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    • pp.157-174
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    • 1999
  • 에너지부문의 미래를 예측할 때 과거의 예를 참고하는 것이 결정적인 도움은 안되지만, 방향설정을 위한 좋은 지침이 되는 경우는 많다. 21세기의 에너지산업을 변화시킬 주요 요소에는 지구기후변화, 산업활동에 대한 환경규제 강화, 전력산업의 구조개편, 산업활동 증가와 생활수준의 향상에 따른 전기 및 에너지수요의 지속적 증가, 기타 여러가지 시장요인에 의한 다양한 변화가 예상된다. (중략)

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폐타이어 콘크리트의 열적 특성

  • 최재남;이희남;손기상
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 2001.11a
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    • pp.197-202
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    • 2001
  • 기존 콘크리트의 특성을 이용한 수많은 건물들이 축조되고 있으면, 우리는 그 안에서 거주하고 있다. 다양한 기후조건, 초근에는 오염된 장기적으로 부식시키는 그리고 파괴시키는 자연조건이 되고 있다 많은 요인들 중에서 습기가 스며들고, 이는 중요구조 요소인 철근을 부식케하여 큰 문제로 대두되어 최근 국제적 연구는 이러한 악조건을 지탱하는 콘크리트 구조를 개선하기 위한 노력을 하고있는 추세이다.(중략)

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2004 벤처 M&A 전망(상)

  • Im, Yun-Cheol
    • Venture DIGEST
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    • s.44
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    • pp.12-13
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    • 2004
  • 올해 들어, 벤처기업 M&A 활성화를 가로 막았던 요소들은 크게 개선되었다. 작년에는 M&A관련한 주식 맞교환에 대한 규제나 관련 세법 등이 개정되어 보다 자유로운 M&A가 가능해 졌다. 또한, 자금 측면에서도 보다 장기적인 투자 관점을 갖는 스마트한 M&A 자금이 증가할 전망이다. 중기청이나 산자부 등에서는 벤처 기업 M&A와 기술이전을 지원하기 위한 전문 펀드를 조성하거나 조성할 계획이며, 시중 은행을 비롯한 금융권에도 대형 구조조정 펀드를 결정하고 나섰다.

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A Study on the Design of the Appraisal System of Permanent Archival Institutions : Focused on the Seoul Metropolitan Archives (영구기록물관리기관의 재평가체계 설계 연구 서울기록원을 중심으로)

  • Lee, Eunjung;Kim, Dabeen;Kim, Sunyou;Kim, Heejin;Ryu, Hanjo
    • The Korean Journal of Archival Studies
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    • no.76
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    • pp.5-37
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    • 2023
  • This study aimed to design an evaluation system applicable to permanent record management institutions, focusing on the Seoul Archives, in order to implement the reevaluation of permanent record management institutions. As a process for this, an area for evaluating evidence, administrative, and historical values was established and detailed evaluation factors were derived. In order to effectively apply the set evaluation factors, the evaluation procedure was designed by dividing them into three stages. In the first stage of law-based evaluation, long-term preservation was determined by identifying the position and legal form of policymakers that can be immediately evaluated according to clear standards. Records that have not been determined for long-term preservation were reorganized into evaluation factors, such as record management standards, official document classification tables, pledges, and policies, which are the second stage of business function-based evaluation, and then comprehensively applied to review the validity of long-term preservation of held records. In the second stage of evaluation, records that were not judged as long-term preservation were judged by applying historical events, cultural assets, and collection policies in the subject-based evaluation stage, which is the third stage of evaluation. The designed evaluation system can find significance in minimizing the arbitrariness reflected in the evaluation and increasing the efficiency of the evaluation, and it has been confirmed that it is possible to evaluate comprehensively reflecting the various contexts and values of the records. In addition, a re-evaluation system suitable for permanent records management institutions was established by combining balanced macro-evaluation and micro-evaluation.

The Influence of Cooperation Elements on the Joint R&D Performance: Focused on IT R&D Project (공동연구성과에 협력요소가 미치는 영향에 관한 연구: IT R&D를 중심으로)

  • Oh, Jin-Hwan;Koo, Hoonyoung
    • The Journal of Society for e-Business Studies
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    • v.23 no.1
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    • pp.23-36
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    • 2018
  • This study analyzed the causal relationship between cooperation elements and the performance of joint R&D and verified the mediating effect of collaborative efforts. Cooperation elements consist of strategic agreement, complementation of resources, trust and absorption capacity, and influence the intention to participate in the joint R&D. The purpose of this study is to identify the effects of the cooperation elements and collaborative efforts on the short-term and long-term performance of the joint R&D. The results are summarized as follows: First, it is verified that strategic agreement, complementation of resources, trust and absorption capacity constitute the second order factor of cooperation elements, which positively affects the joint R&D performance. Second, it is verified that collaborative effort play a role as a mediating factor in the relationship between joint R&D performance and cooperation elements. Specifically, it was confirmed that positive effects on short-term performance of the joint R&D can be increased through cooperative efforts. However, in the case of long-term performance, the effects of collaborative efforts could not be confirmed.

The Uses of DSpace Metadata Elements in the Institutional Repository (국내 기관 리포지토리에서 DSpace 메타데이터 요소의 활용 현황)

  • Lee, Eun-Ju
    • Journal of Korean Library and Information Science Society
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    • v.47 no.4
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    • pp.465-487
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    • 2016
  • The purpose of this research is to investigate the metadata elements of institutional repository using DSpace and to provide the directions and strategies for constructing metadata. To the end, discussed in details are (1) understanding the background of development, features, elements of metadata, (2) figuring out the common metadata elements and the differentiated metadata elements for the institutional repository, (3) examining the search methods, search elements, and display elements of the insitutional repository, and (4) based on theses, suggested are directions and strategies for metadata of institutional repository using DSpace. The research methods were used such as literature review, the analysis of 4 domestic institutional repository.