• Title/Summary/Keyword: structure-related

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Evaluation of Seismic Margin of Existing Steel Structure Based on Seismic Margin Assessment (내진여유도평가법에 근거한 기존 강구조물의 내진성능평가)

  • 황규호;송정국;강선구;서용표
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2002.03a
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    • pp.239-249
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    • 2002
  • The Turbine Building of nuclear power plant is classified as non safety-related structure. During the operation, there may be possibility the original licensing basis would be changed, which makes non safety-related structure safety-related. Such a change in regulation requires utility to perform seismic qualification for the existing structure and their facilities. Thus it is meaningful to evaluate seismic margin of the existing non-qualified building structure. In addition, in this paper it is shown that a modification to the structure can enhance their seismic capacity.

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Development of Accident Cause Analysis Model for Construction Site (건설업 사고 발생원인 파악을 위한 사고 분석 모델 개발)

  • Lim, Won Jun;Kee, Jung Hun;Seong, Joo Hyun;Park, Jong Yil
    • Journal of the Korean Society of Safety
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    • v.34 no.1
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    • pp.45-52
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    • 2019
  • Accident analysis models were developed to improve the construction site safety and case studies was conducted. In 2016, 86% of fatality accidents occurred due to simple unsafe acts. Structure related accidents are less frequent than the non structure related causes, but the number of casualties per accident is two times higher than non structure one. In the view of risk perception, efforts should be given to reduce accidents caused by low frequency - high consequence structure related causes. In case of structure related accident, structural safety inspection and management (including quality), ground condition management / inspection technology, and provision of risk information delivery system in case of non structure related accident were proposed as a solution. In analysis of relationship between safety related stakeholder, the main problem were the lack of knowledge of controller and player, loss of control due to duplicated controls, lack of communication system of risk information, and relative position error of controller and player.

Influences of Information Technology Structure Taxonomy on Business Performance - Moderating Effect of Organization Structure and Control System - (정보기술구조유형이 경영성과에 미치는 영향 - 조직구조와 통제시스템의 조절효과를 중심으로 -)

  • Kim, Moon-Shik
    • Asia pacific journal of information systems
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    • v.9 no.1
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    • pp.17-38
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    • 1999
  • While the value of information technology has long been a hot issue, few solid results have been found as of yet. It is partly due to methodological factors and model underspecifcation. This study empirically develops a ITS(information technology structure) taxonomy and investigates the relationships between ITS taxonomy and business performance in the Korean firms. Among factors that impact business performance, organization structure and control system are selected and they are hypothesized to moderate-the relationships between ITS taxonomy and business performance. By surveying 91 manufacturing firms and applying hierarchical cluster analysis, four ITS are identified : centralized, decentralized, centralized cooperative, decentralized cooperative. ANOVA, correlation analysis and crosstable analysis say the presence of moderating effect of organization structure and control system. Cooperative ITS is best in business performance. Centralized ITS is related to functional organizational form. Decentralized ITS is related to product organizational form with decentralized decision making, Centralized cooperative ITS is related to matrix organizational form. Decentralized cooperative ITS is related to matrix organizational form with high integration. These findings have implications for the opportunities and challenges to match information technology with organization structure and control system.

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A Study on the Effect of Publicity and Entrepreneurship by Government Control, Competitive Environment, and Shareholding Structure in Korea Electric Power Corporation (한국전력산업의 정부통제, 경쟁환경, 소유구조가 공공성 및 기업성 향상에 미치는 영향에 관한 실증적 연구)

  • Kim M. S.
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.54 no.7
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    • pp.366-374
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    • 2005
  • The purpose of this study is to find out main factors affecting public enterprise's environment , which improves the performance of public enterprise. In detail, under the premises of keeping publicity in Korea Electricity Industry, the main target of this study is to seek after factors enhancing entrepreneurship and deals with publicity which is related with entrepreneurship. Questionnaires are distributed to the employee of public enterprise, public servants, and civil corps. A total of 553 copies are collected. The main contents of questionnaires are related with the effect of publicity and entrepreneurship by government control, competitive environment and shareholding structure in Korea Electricity Power Corporation(KEPCO). The results of this survey are as follows : First government control is negatively related to the entrepreneurship while it is positively related to the Publicity. Second, this suey shows that competitive environment has a Positive influence on promoting both publicity and entrepreneurship. Third this survey in connection with shareholding structure indicates that present structure in KEPCO has a positive effect on publicity but negative effect on entrepreneurship. According to this empirical results, it is verified that the main issues on the performance of KEPCO ue related with the level of government control and competitive environment in its industry.

An Analysis on argumentation structure development of preservice teachers through argumentative writing on earth science related SSI (지구과학 관련 사회적 문제(socio-scientific issue)와 관련된 논증적 글쓰기를 통해 알아본 예비교사들의 논증구조 발달 분석)

  • Wee, Soo-Meen;Yoon, Ji-Young;Lim, Sung-Man
    • Journal of the Korean Society of Earth Science Education
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    • v.7 no.1
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    • pp.11-23
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    • 2014
  • The purpose of this study is to analyze the degree of argumentation structure development and factors of development of preservice teachers through SSI related argumentative writings. The study was conducted with 16 preservice teachers that students taking elementary science education theory class in K university located in Chungbuk. The testees wrote six SSI related argumentative writings (once a week), and we examined the degree of argumentation structure development and the change in the recognition of SSI of the preservice teachers by comparing the writings before and after the experiments. The experimental results showed that argumentation structure of the preservice teachers'writings improved and argument level (argument capability) of them also increased as the number of writing was increased. Factors that affect the argumentation structure improvement are mainly argumentation structure education, a number of writings, feedbacks, and subjects related to SSI. In this aspect, the argumentative writing on SSI has the effect of developing scientific sophistication and enhancing the decision-making power of students, and it has positive impacts in science education.

A Study on Improvement of Legal System for Construction of Very Large Floating Structure (부유식 초대형 해상구조물의 건설을 위한 법제도 개선에 관한 연구)

  • 이한석;송화철
    • Journal of Korean Port Research
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    • v.13 no.2
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    • pp.365-380
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    • 1999
  • In this thesis the legal systems related to real estate and sea area utilization are studied in order to improve them for construction of Very Large Floating Structure. Main research subjects are as follows: 1) Whether can Very Large Floating Structure be accepted or not as real estate like house and land\ulcorner 2) How can the sea area which is occupied by Very Large Floating Structure be utilized\ulcorner As the conclusion, the Very Large Floating Structure can be registered as real estate even though it is not specified by Korean law for the present. The design concept of Very Large Floating Structure can be interpreted as satisfying enough necessary conditions and factors for Very Large Floating Structure to become real estate. In the near future, we have to make improvement on the laws related with the construction of Very Large Floating Structures so that private sectors can joint the construction. In additions, a new law for various floating structures should be made as soon as possible.

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A Comparative Analysis on the Change between Spatial Structure and Social Conditions of Rural Region - Focused in Asan City - (지역공간구조와 농촌지역 인문사회적 변화의 관계 연구 - 충남 아산시를 중심으로 -)

  • Cho, Young-Jae
    • Journal of Korean Society of Rural Planning
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    • v.20 no.4
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    • pp.127-135
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    • 2014
  • The purpose of this study is to show the relation of the change between spacial structure and social conditions of rural area. The spacial structure change of Asan city was analyzed using Space Syntax, and multiple regression analysis (dependent variables: connectivity, global integration, local integration / independent variables: population, household, farm population, farm population of 65years old and over, farm household, part-time farm households, cultivated land) was accomplished. As th result, that the increase of connectivity is related to the increase of population and farm population of 65years old and over and the decrease of farm population, and the increase of local integration is related to the increase of farm population of 65years old and over was showed. However, that global integration is not related to change of social conditions was proved.

Study on the Quality Improvement through Analysis of the Cause of the Structure Design Drawing in the Internal Reinforced Concrete Structures

  • Kim, Byung-Yun
    • Journal of the Korea Institute of Building Construction
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    • v.14 no.1
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    • pp.76-86
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    • 2014
  • The cause of crack on reinforced concrete structures is varied, while the studies, which have intended to analyze this in the material side, have been the mainstream so far. Therefore, in this study, we intended to suggest the proposals for enhancement of the system to reduce crack and to improve the quality of the reinforced concrete structures, by reviewing the cause of crack mainly in the structural aspect and analyzing the practices and the system. The result has been shown as following. (1) As one of the measures for improving the constructional system related to the structure, it is to enhance the relevant system so that design on construction, structure, and equipment, can be separately ordered or jointly ventured, and the owner or the agent of the owner can discuss and mediate the business in each specialized field. (2) Importance on construction supervision and new establishment of regulations related to structure supervision.

Propagation of Engineering Changes for Supporting Consistent Product Data View (일관된 제품자료관점을 지원하는 설계변경 전달에 관한 연구)

  • 도남철
    • Korean Journal of Computational Design and Engineering
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    • v.8 no.2
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    • pp.90-100
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    • 2003
  • Engineering change (EC) objects are the data structure and related operations that can support applications for EC procedures or processes. Their functionalities include controlling management data, specifying related product structure, and archiving a history of product structure changes for EC management. In this paper we introduce a systematic approach to support the propagation of changes between different product structure views using the history of structure changes in EC objects. The change propagations supported by EC objects enable designers to maintain the consistency of multiple product structure views for engineering, manufacturing or even customer support applications. This paper also includes EC examples and experimental implementations for the proposed EC objects.

The Change of toxical Structure by Causativization in Korean: a generative lexicon approach (한국어 사동화와 어휘의미구조의 변화: 생성어휘부(Generative Lexicon) 이론에 의한 접근)

  • 김윤신
    • Language and Information
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    • v.6 no.2
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    • pp.57-82
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    • 2002
  • This study explores the lexical-semantic structure of derived causative verbs in Korean based on Pustejovsky(1995)'s Generative Lexicon Theory (GL). Morphological causative verbs are derived from their root stems by affixing ‘-i, -hi, -li, -gi’ in Korean and the meanings of derived predicates are closely related to the meanings of their root verbs. In particular, the change of the ARGUMENT STRUCTURE by morphological derivation leads to the change of the EVENT STRUCTURE. The ARGUMENT STRUCTURES of derived causative verbs include a causer argument, which is added to the ARGUMENT STRUCTURE of their root verbs by means of the causative derivation. Their EVENT STRUCTURE has a headed process related to a causer and its result is the event which their root verbs denote. This approach can also suggest that the (in)directness of causative is dependent on is the semantics of its root verb.

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