• International Journal of Knowledge Content Development & Technology
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• 제2권2호
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• pp.31-45
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• 2012

This study prepared a foundation to provide high-quality services in a stable and effective way to meet the customer expectations, by building up and establishing an ISO 20000 certified IT service management system and protecting the information assets from various threats through effective system operation that meets the requirements of international standards, in order to ensure the reliability and stability of NDSL public services provided by KISTI Information Service Center and to enhance the customer satisfaction.

• 한국건축시공학회지
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• 제11권5호
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• pp.515-522
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• 2011

As Construction and Demolition (C&D) debris increases every year, systems have been adopted to compel the use of recycled aggregate made from C&D debris, and the use of recycled aggregate in the construction field has increased. But environmental problems linked to the alkalinity of recycled aggregate have occurred, and a study on approaches to lower the alkalinity of recycled aggregate is needed. It was certified by this study that a large amount of recycled aggregate could be carbonated in the C&D debris midterm-treatment field. As a result, the density and the water absorption of recycled aggregate after carbonation reaction was improved, and pH of recycled aggregate was lowered from over 11 to 9.4. X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS), and Thermogravimetry/Differential Thermal Analysis (TG/DTA) methods also indicated the carbonation of recycled aggregate.

• KIEAE Journal
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• 제16권4호
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• pp.21-30
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• 2016

Purpose: Energy saving in the built facilities is getting important due to energy crisis. The Korea government has been implemented several energy and green building policies and practices. The both of government and industry also developed green building strategies ant technologies to reduce energy consumption and carbon emission. The purpose of this research is to identify applicable green building strategies and technologies for that can be cost effective and applicable to a multiplex house. Method: This research identified appropriate green building strategies from analysing green building strategies from G-SEED certified apartment projects and popular green building strategies. This study also adopted a survey research method to find out the applicable green building strategies for a multiplex housing. In addition, this research also conduct cost estimating to identify initial cost premium of green building strategies. Results: The research outcomes in this study guide a building owner to know about initial cost premiums of green building strategies and technologies and an architect and contractor to identify appropriate and cost effective green building strategies that can be applicable to a multiplex house.

• 설비공학논문집
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• 제22권2호
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• pp.104-111
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• 2010

To promote environmentally responsible architectural practice, many nations have established their own Green Building Certification system. Until 2007, 138 Education facilities acquired certification but many people don't fully understand each item of Green building Certification Criteria yet. The purpose of this study is to analyze 40 certified Education facilities and to find the reasons why they had acquired low scores and high scores. These scores lead us to propose a way that each contents the efficient approaches and alternative visions of Education facilities. Because the part of material and resource is initial of the projects, this study focuses on it and aims to pick out the items requiring improvement for the Education facilities. We expect to be helpful for the next design works through result of this thorough study.

• KIEAE Journal
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• 제15권6호
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• pp.27-36
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• 2015

Purpose: The definition and factors of passive design being the sustainable method of building plan through the preceding research is deducted and the effect of passive design within the public library by applying the deducted factors in the case of built public libraries and further the realization plan of green library aimed to be reviewed in this research. Method: This study is to induce common elements of architecture plan for public library and passive design, and assess application level of re-classified elements of sustainable public library in order to analyze present condition of passive design applied on facilities of public library. First, related laws and planning standards of public library will be reviewed, then the definition of passive design will be considered using advanced research. Through advanced research related to planing elements and passive design for library induced from various plans for library standards, a common ground of induced passive design element will be transformed into assessment items and practices to be analyzed. Result: Libraries which are and are not preliminarily certified by G-SEED will be compared with each other in order to analyze the effects of passive design on G-SEED. Even though various passive elements such as load reduction of air conditioning and energy efficiency exist, there are no assessment tool within G-SEED. The fact that there are only standards for temporary methods such as utilization of construction material and installation of equipment highlights the challenges in quantitative evaluation.

• 한국건설관리학회논문집
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• 제15권3호
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• pp.58-65
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• 2014

본 연구는 국내에서 시행중인 친환경 건축물 인증제도 (G-SEED)에 따른 환경영향 저감 효과를 파악하는 것을 목적으로 한다. 이를 위하여, G-SEED 인증을 받은 초등학교 건축물과 인증을 받지 않은 일반 초등학교 건축물을 대상으로, 전과정평가 방법론을 이용하여 4가지 환경영향범주 (지구온난화, 오존층파괴, 산성화, 부영양화)에 따른 환경영향을 평가하고, 결과를 비교하였다. 건축물에 대한 환경영향평가는 자재생산, 자재운송, 시공, 운영단계를 포함하였으며, 운영기간은 40년으로 설정하였다. 두 건축물의 단위연면적당 환경영향을 비교한 결과, 일반 초등학교 건축물에 비해 친환경 인증 초등학교 건축물의 환경영향이 큰 것으로 나타났다. 예를 들어, 친환경 인증 초등학교 건축물의 지구온난화지수는 3.751 $t-CO_2eq./m^2$ 로 산출된 반면, 일반 초등학교 건축물의 지구온난화지수는 3.282 $t-CO_2eq./m^2$ 로 산출되어, 약 12.5% 크게 나타났다. 이는 G-SEED 인증이 4가지 측면에서의 환경영향의 저감을 보장하지 못한다는 것을 의미한다. 따라서 건축물로부터 발생하는 환경영향의 저감을 달성하기 위해서는 G-SEED에 대한 보완이 필요하다.

• 한국시뮬레이션학회논문지
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• 제20권4호
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• pp.127-138
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• 2011

장시간 저장 후 짧은 시간 동안 운용되는 특성을 갖는 보증 유도탄은 지속적인 신뢰도 저하를 개선하기 위해 주기적인 검사정책을 사용한다. 본 연구에서는 유도탄의 저장 신뢰도 유지를 위해 주기적 검사 개념을 기초로 검사장비의 불완전성에 따라 유도탄 구성품을 정비계단에 맞추어 분류하고, 검사 시 발생하는 손상확률과 정비과정의 불완전성에 의해 손상되는 확률을 고려하여 최적의 검사주기 산출과정을 제시한 기존 연구를 검토한다. 또한 검토된 기존 연구를 바탕으로 주기검사 과정에서 유도탄이 손상되는 확률과 유도탄의 운용 형태 및 정비 형태를 고려한 제약사항을 포함하는 시뮬레이션 모델을 설정하고, 시뮬레이션 전용 패키지를 활용하여 분석함으로써 실제 운용 환경에서 최적의 보증유도탄 검사주기, 주기검사소, 정비창을 설정함으로써 유사 유도탄체계에서 활용이 가능한 시뮬레이션모델을 제안한다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제17권4호
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• pp.25-37
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• 2011

As International considerations about the Barrier-Free environment increase, Korean Barrier-Free Environment Certification System has operated since 2008 in Korea. The purpose of this study is to find way to improve evaluation items, so this study analyzed the result of examination certified facilities and investigated the importance of the evaluation item for conducted a questionair survey with the BF experts. As a result, a lower scored and high important item should assign a higher score or lower the difficulty level, so induces applicants to be certified. Second, a higher scored and lower important item should assign a lower score or increase the difficulty of evaluating. The results suggested are expected the use in the improvement direction of BF certification evaluation items.

• KIEAE Journal
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• 제15권3호
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• pp.15-20
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• 2015

Purpose: Suggesting a working prototype of a kinetic light shelf unit and revealing its energy efficiency by a series of building performance simulations were presented. Recently, kinetic building envelope has been an emerging technology as an innovative way to control exterior building environment, but products from many researches about the facade could not been reached to the industrialization so far. That is because its initial installation, operation and maintenance costs are still too high to use for the practical field, although buildings using kinetic envelopes could decrease their energy consumption significantly. This narrow point of view needs to be reconsidered, since buildings require great amount of energies to run their functions through the whole life and using better building components can lead to achieve much more benefits in aspects of the lifecycle cost (LCC). Method: A series of certified simulation tools like Ecotect and Green Building Studio that are normally used for researches and developments in the field of architecture were utilized. Result: Based on simulation analyses, the result of the study has showed that the proposed system definitely has adaptability to the professions and positively shows practicability as advanced integrative building envelopes with renewable energy association.

• KIEAE Journal
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• 제15권5호
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• pp.75-82
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• 2015

Purpose: The first grade of Korea's Building Energy Efficiency Rating System(BEERS) is required for new government office buildings as a mandatory measure to reduce greenhouse gas emission. However, there is no specific criteria about performance that which level should apply to energy-saving design element for obtaining Building Energy Efficiency Rating 1st grade. Therefore, Certification status should be analyzed firstly, about the office building which is certificated. Certification analysis for office buildings acquired certification therefore should be done first. Method: In this study, Certification status(Office buildings acquired Building Energy Efficiency Rating Certification)was analyzed by classified year, region, specific scale etc. And we analyzed statistically by eliciting an average value of each element influencing to the amount of energy. Result: Energy demands were gradually decreased due to revision of thermal insulation standards for enhanced u-value. Energy consumptions were different from the kind of equipment and yearly trends applied depending on the size of the building. Total primary energy consumptions were influenced by heat source types and the primary energy scale factors.