• 국제초고층학회논문집
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• 제9권1호
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• pp.87-93
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• 2020

Professionals who work in the realm of tall building design and construction are well aware that high-rises are the best solution for accommodating growing urban populations. Until recently, few would have thought to include tall wood buildings as part of that solution, but there is growing awareness that tall mass timber structures can help satisfy the need for density while addressing the need-equally urgent-for a more sustainable built environment. This paper examines the trend toward tall wood buildings in the United States, including their history and international influences, market drivers, structural performance, and economic viability, as well as building code changes that allow wood structures up to 18 stories. It highlights examples of mass timber projects, with an emphasis on benefits that impact return on investment.

• 국제초고층학회논문집
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• 제6권4호
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• pp.301-306
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• 2017

The design and construction of supertall buildings has grown dramatically in recent years. This area of practice has traditionally fallen within the purview of a very small group of architects and engineers, but this is rapidly changing, as unprecedented growth and densification has spread to markets not traditionally known for high rise construction. The design community has been increasingly committed to the adoption of green and sustainable design, and the integration of smarter, cleaner technologies across the building spectrum. This paper examines current supertall design trends, and suggests that recently completed and planned projects are trending towards more sustainable solutions, and that a unique set of best practices are emerging specific to Supertalls.

• 한국건축친환경설비학회 논문집
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• 제12권6호
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• pp.606-617
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• 2018

Increased density of racks has resulted in increased use of data center cooling energy and the needs for energy efficient cooling systems has increased. In response to these needs, ASHRAE presented a performance indicator, which is Mechanical Load Component (MLC), for the purpose of evaluating systems at the design stage. However, the MLC metrics presented in the current standard can only be determined for system compliance and compared alternative systems with the system configuration completed. Therefore, there are limitations to considering MLC from the early stages of design. In this study, to extend the scope of application of MLC in the design phase, the design factors of the main equipment comprising the cooling system are classified by the MLC load component and interrelations between design factors were identified.

• 국제초고층학회논문집
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• 제10권1호
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• pp.35-43
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• 2021

With the rapid urbanization and growing energy use intensity in the built environment, the glazed curtainwall has become ever more important in the architectural practice and environmental stewardship. Besides its energy efficiency roles, window has been an important transparent component for daylight penetration and a view-out for occupant satisfaction. In response to the climate crisis caused by the built environment, this research focuses on the study of net-zero energy retrofitting by using a new building integrated photovoltaic (BIPV) curtainwall as a sustainable alternative to conventional window systems. Design variables such as building orientations, climate zones, energy attributes of BIPV curtainwalls, and glazed area were studied, to minimize energy consumption and discomfort hours for three cities representing hot (Miami, FL), mixed (Charlotte, NC), and cold (Minneapolis, MN). Parametric analysis and Pareto solutions are presented to provide a comprehensive explanation of the correlation between design variables and performance objectives for net-zero energy retrofitting applications.

• 스마트미디어저널
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• 제11권10호
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• pp.36-45
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• 2022

This study was promoted to prepare an ESG-oriented work system for Korea Expressway Corporation through sustainable highway construction, IOT-based smart highway preparation, and establishment of a broad convergence business governance system between multiple ministries and implementing entities. Based on the 2nd Basic Plan for Landscape Policy (2020~2024) and the Public Design Promotion Act (2018~2022), the study was conducted through the improvement of the highway design method to be applied for four years from 2021 to 2024, the changes in construction and social conditions related to expressways, the analysis of policies and plans to secure consistency with the 'Korean New Deal', and the analysis of the project performance and work promotion system that the Korea Expressway Corporation's business execution organization has promoted together with each government department. The results of this research are expected to help the Korea Expressway Corporation establish the 21st Innovation Plan for the phased construction of a "100-years landscape with people" and the preparation of a sustainable future highway environment creation project for the lives and safety of the people.

• 한국전기전자재료학회논문지
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• 제37권2호
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• pp.133-140
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• 2024

This study offers a comprehensive evaluation of the role and impact of advanced power semiconductors in solar module systems. Focusing on silicon carbide (SiC) and gallium nitride (GaN) materials, it highlights their superiority over traditional silicon in enhancing system efficiency and reliability. The research underscores the growing industry demand for high-performance semiconductors, driven by global sustainable energy goals. This shift is crucial for overcoming the limitations of conventional solar technology, paving the way for more efficient, economically viable, and environmentally sustainable solar energy solutions. The findings suggest significant potential for these advanced materials in shaping the future of solar power technology.

• Structural Monitoring and Maintenance
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• 제2권1호
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• pp.35-48
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• 2015

The main objective of this study is to evaluate the long-term performance of various concrete composites in natural marine environment prevailing in the Gulf region. Durability assessment studies of such nature are usually carried out under aggressive environments that constitute seawater, chloride and sulfate laden soils and wind, and groundwater conditions. These studies are very vital for sustainable development of marine and off shore reinforced concrete structures of industrial design such as petroleum installations. First round of testing and evaluation, which is presented in this paper, were performed by standard tests under laboratory conditions. Laboratory results presented in this paper will be corroborated with test outcome of ongoing three years field exposure conditions. The field study will include different parameters of investigation for high performance concrete including corrosion inhibitors, type of reinforcement, natural and industrial pozzolanic additives, water to cement ratio, water type, cover thickness, curing conditions, and concrete coatings. Like the laboratory specimens, samples in the field will be monitored for corrosion induced deterioration signs and for any signs of failureover initial period ofthree years. In this paper, laboratory results pertaining to microsilica (SF), ground granulated blast furnace slag (GGBS), epoxy coated rebars and calcium nitrite corrosion inhibitor are very conclusive. Results affirmed that the supplementary cementing materials such as GGBS and SF significantly impacted and enhanced concrete resistivity to chloride ions penetration and hence decrease the corrosion activities on steel bars protected by such concretes. As for epoxy coated rebars applications under high chloride laden conditions, results showed great concern to integrity of the epoxy coating layer on the bar and its stability. On the other hand corrosion inhibiting admixtures such as calcium nitrite proved to be more effective when used in combination with the pozzolanic additives such as GGBS and microsilica.

• 통상정보연구
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• 제17권1호
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• pp.3-28
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• 2015

이용자의 집중을 이끌기 위한 웹광고의 자극들이 증가하는 가운데, 웹광고들이 오히려 이용자의 웹활동을 방해하는 경우가 많아졌다. 하지만 이용자들이 웹광고를 회피할수록 기업은 더욱 자극적인 광고로 이용자의 집중을 이끌고자 노력하고 있어 과연 기업이 원하는 웹광고 성과를 달성할 수 있을지에 대한 의문이 가중되고 있다. 이에 본 연구는 웹광고의 자극요소들이 웹광고에 대한 이용자의 태도와 이후 웹광고 성과에 이르는 과정을 살펴보았다. 연구결과, 웹광고의 과도한 자극이 오히려 웹광고와 해당 웹사이트에 대한 부정적인 성과를 초래할 수 있으며, 웹광고의 유용성 및 유희성에 의해 웹광고의 설득수준이 높아짐을 확인할 수 있었다. 또한, 웹사이트의 특성에 따라 인터넷신문 사이트와 전자상거래 사이트에서의 웹광고 자극과 그에 대한 성과의 차이를 비교 분석하였다. 그 결과, 전자상거래 사이트보다도 인터넷신문 사이트에서의 광고 자극이 더욱 침입성과 혼란성이 높아 웹사이트를 회피하게 됨을 확인할 수 있었다. 이러한 연구결과를 바탕으로 본 연구는 기업이 기대하는 성과를 얻을 수 있고 이용자의 편익도 증진할 수 있는 바람직한 웹마케팅의 방향을 논의하고자 한다.

• 한국콘텐츠학회논문지
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• 제22권5호
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• pp.110-124
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• 2022

본 연구는 지속가능한 도시재생을 위한 커뮤니티디자인 평가요소를 개발하고, 이를 통해 우수 커뮤니티디자인 사례를 분석하여 지속가능한 커뮤니티디자인을 위한 고려사항을 제안하는 것을 목적으로 한다. 문헌조사를 통해 지속가능한 도시재생에 대한 개념 및 핵심항목, 커뮤니티디자인의 개념과 구성요소에 대한 선행연구를 고찰했다. 또한 선행연구 분석을 통한 커뮤니티디자인의 평가요소와의 연계성 분석을 통해 사회·경제적, 물리·환경적, 역사·문화적 차원에서 지속가능한 커뮤니티디자인을 위한 평가지표를 개발하였다. 평가지표는 사회적 차원에서의 사회성, 참여성, 경제성, 물리·환경적 차원에서의 환경성, 접근성, 맥락성, 역사·문화적 차원에서의 지역성, 정체성, 예술성 등 3개 평가항목과 9개 평가요소를 포함한다. 개발된 평가지표와 세부내용 설명은 전문가 검증을 통해 신뢰성과 효용성을 확보한다. 설문조사를 통해 탐색적 인자 분석과 전문가 인터뷰를 진행하였고, 분석 결과 안정도(stability)와 Cronbach'α 계수의 검증을 통과하였고, 전문가 인터뷰를 통해 지속가능한 도시재생을 고려한 커뮤니티 디자인 평가지표의 타당성을 검증하였다. 본 연구 결과는 향후 지속가능한 도시재생을 위한 커뮤니티디자인 향상 및 개선에 기초적인 자료를 제공할 수 있다는 점에서 의의가 있다고 판단된다.

• 한국디지털정책학회:학술대회논문집
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• 한국디지털정책학회 2005년도 춘계학술대회
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• pp.51-71
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• 2005

Performance measurement systems based on the principle that "if you can't measure it, you can't manage it" reinforce a short-term culture by focussing on tangible outputs. Instead, the focus of organisations should be on sustainable long-term performance through continuous systemic improvement. To establish and reinforce behaviours that drive systemic improvement, measurement and reporting systems need to be de designed to re-enforce work to role behaviour by managers. This paper discusses this concept and how it is being applied in practice through an ongoing action research project.