• 제목/요약/키워드: environment

검색결과 104,002건 처리시간 0.103초

An Exploratory Study of EVMS Environment Factors and their Impact on Cost Performance for Construction and Environmental Projects

  • Aramali, Vartenie;Sanboskani, Hala;G. Edward Jr., Gibson;Asmar, Mounir El
    • 국제학술발표논문집
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    • The 9th International Conference on Construction Engineering and Project Management
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    • pp.170-178
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    • 2022
  • A high-performing Earned Value Management System (EVMS) can influence project success and help stakeholders meet project objectives. Although EVMS processes are well-supported by technical guidelines and standards, project managers often face challenges related to the project culture, team, resources, and business practices that make up the project environment within which an EVMS is being used. A comprehensive literature review revealed a lack of a data-driven and consistent assessment frameworks that can gauge the environment surrounding EVMS implementation. This paper will discuss the EVMS environment of construction and environmental projects, and examine its impact on cost performance. The authors used a multi-method approach to identify 27 environment factors that make up the EVMS environment, assessing them on 18 construction and environmental projects worth over $2 billion of total cost. Research methods employed include: (1) a literature review of more than 300 references; (2) a survey of 294 respondents; and (3) remote research charrettes with more than 60 participating expert practitioners. Culture (one of the identified environment categories) was found to be relatively more important in terms of its impact on the EVMS environment, followed by people, practices, and resources. These exploratory results show statistically significant differences in cost performance between completed projects with either a good or poor environment, for the sample projects. Key environment factors are outlined, and guidance is provided to practitioners around how to set up an effective EVMS environment in a construction or environmental project to inform decision-making and support achieving the project cost objectives successfully.

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공업화 주택의 쾌적성에 대한 거주자 반응 (Evaluation on comfort in P.C. Apartment)

  • 이지숙
    • 한국주거학회논문집
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    • 제8권2호
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    • pp.107-112
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    • 1997
  • This thesis is dealt with the thermal environment, the indoor air environment, the sound environment and the light environment in P.C apartment house. The purpose of this study is to analyze degrees of 'the cognition'. 'the importance', and ‘the satisfaction' on indoor environmental factors and to evaluate comfort of indoor environment based on residents' responses. The questionnaire survey was given to the residents at P.C apartment complex in Rowon-Gu, Seoul. The following are the results obtained in this thesis. The results of Path analysis on comfort revealed that factors of direct effect to comfort were the satisfaction on indoor air environment and sound environment and the cognition on indoor air environment and sound environment. The satisfaction on indoor air environment was the biggest variable which decided the comfort. By the survey of P.C apartment residents' responses, the level of P.C apartment indoor comfort was found uncomfortable. It is meaningful to su99est the model evaluating comfort by residents' responses .

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친환경 건축 자재의 요소 분석 (An Analysis of Environment-Friendly Architecture Material Elements)

  • 김진우
    • 교육녹색환경연구
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    • 제7권2호
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    • pp.1-11
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    • 2008
  • Recently, it is throwing the spotlight on environment-friendly architecture for preservation of the global environment throughout the world. At this point in time, home products to have Eco-label in architecture materials is increasing constantly and the demand of environment-friendly building and material is rising. The purpose of this study is to propose a way of development through analysis about necessity and concept of environment-friendly architecture and research into institution and standard for certification of environment-friendly building materials. So, it will make exactly progress to this study that is based on analysis and research of periodical publications, theses, reports of journal and data of the advanced country about environment-friendly architecture.

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충북지역 중학교시설의 친환경인증 사례연구 (A Case Study on the Middle Schools with a Environment-Friendly Certification in Chungbuk Area)

  • 정유근;김치교;김정태
    • KIEAE Journal
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    • 제11권1호
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    • pp.57-62
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    • 2011
  • The study aims to analyze and evaluate the evaluation items and application methods of environment-friendly middle schools in Chungbuk area by case studies. For the study, the criteria and situations of environment-friendly schools are analyzed literally and three environment-friendly middle schools in Chungbuk area selected. The field surveys and faculty interviews are performed. As results, about 35 environment-friendly technologies are applied and 66 to 68 points are acquired in three selected schools. It is analyzed that the PV, natural interior materials, raining recycle system and sufficient green spaces are pointed out as main technologies. About 66% of respondents know the environment-friendly certification and use the environment facilities in classes. However, the unsuitable plants for interior green spaces, unskilled management of recycling facilities and the absent of student participate programs show up as main problems. Also, the active campaigns need to expand the environment-friendly school.

원거리 음성인식을 위한 MLLR적응기법 적용 (MLLR-Based Environment Adaptation for Distant-Talking Speech Recognition)

  • 권석봉;지미경;김회린;이용주
    • 대한음성학회지:말소리
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    • 제53호
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    • pp.119-127
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    • 2005
  • Speech recognition is one of the user interface technologies in commanding and controlling any terminal such as a TV, PC, cellular phone etc. in a ubiquitous environment. In controlling a terminal, the mismatch between training and testing causes rapid performance degradation. That is, the mismatch decreases not only the performance of the recognition system but also the reliability of that. Therefore, the performance degradation due to the mismatch caused by the change of the environment should be necessarily compensated. Whenever the environment changes, environment adaptation is performed using the user's speech and the background noise of the changed environment and the performance is increased by employing the models appropriately transformed to the changed environment. So far, the research on the environment compensation has been done actively. However, the compensation method for the effect of distant-talking speech has not been developed yet. Thus, in this paper we apply MLLR-based environment adaptation to compensate for the effect of distant-talking speech and the performance is improved.

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