• Advances in Energy Research
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• 제5권4호
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• pp.321-339
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• 2017

Energy simulation tools can provide information on the amount of heat transfer through building envelope components, which are considered the main sources of heat loss in buildings. Therefore, it is important to improve the quality of outputs from energy simulation tools and also the process of obtaining them. In this paper, a new Building Energy Performance Assessment Tool (BEPAT) is introduced, which provides users with granular data related to heat transfer through every single wall, window, door, roof, and floor in a building and automatically saves all the related data in text files. This information can be used to identify the envelope components for thermal improvement through energy retrofit or during the design phase. The generated data can also be adopted in the design of energy smart homes, building design tools, and energy retrofit tools as a supplementary dataset. BEPAT is developed by modifying EnergyPlus source code as the energy simulation engine using C++, which only requires Input Data File (IDF) and weather file to perform the energy simulation and automatically provide detailed output. To validate the BEPAT results, a computer model is developed in Revit for use in BEPAT. Validating BEPAT's output with EnergyPlus "advanced output" shows a difference of less than 2% and thus establishing the capability of this tool to facilitate the provision of detailed output on the quantity of heat transfer through walls, fenestrations, roofs, and floors.

• 한국정밀공학회지
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• 제17권8호
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• pp.19-25
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• 2000

Development of Environmentally conscious products in the electrical appliance industry is necessary not only for environmental law and green consumer but also for competitiveness by cost reduction. In this paper the current trends of evaluation tools are described. And practices in the development of environmentally conscious products are explained and improvement cases are presented by ways of design guides. The paper concludes with suggested future tasks which will need to be addressed in order that product designers can utilize the said tools effectively.

• Journal of Information Technology Applications and Management
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• 제17권3호
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• pp.1-24
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• 2010

Most of enterprises depend on a data modeler during developing their management information systems. In formulating business requirements for information systems, they widely and naturally use the interview method between a data modeler and a field worker. But, the discrepancy between both parties would certainly cause information loss and distortion that lead to let the systems not faithful to real business works. To improve or avoid modeler-dependant data modeling process, many automated data design CASE tools have been introduced. However, since most of traditional CASE tools just support drawing works for conceptual data design, a data modeler could not generate an ERD faithful to real business works and a user could not use them without any knowledge on database. Although some CASE tools supported conceptual data design, they still required too much preliminary database knowledge for a user. Against these traditional CASE tools, we proposed a Requirement-Oriented Entity Relationship Model for automated data design tool, called ROERM. Based on Non-Stop Methodology, ROERM adopts inner systematic modules for complete and sound ERD that is faithful to real field works, where modules are composed of interaction modules with a user, rules of schema operations and sentence translations. In addition to structure design of ROERM, we also devise detailed algorithms and perform an experiment for a case study.

• 한국정보처리학회논문지
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• 제1권4호
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• pp.517-530
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• 1994

본 논문에서는 연구용 VHDL 및 CAD 툴을 사용하여 톱다운 설계방식에 의하여 소 형 마이크로프로세서(MPU;microprocessor unit)의 설계를 수행한다. 이를 위하여 기본 MPU와 이의 파이프라인화 구조를 제안한다. 설계목표와 명령어, 아키텍쳐가 결정되면, 이를 우선 C 언어로 모의실험하여 동작을 확인하며, 다음 VHDL 모의실험의 경우, 주어 진 입력에 대하여 내부 레지스터의 내용을 점검하여 동작을 확인한다. 다음에, 이를 연구용 CAD 툴에 의해 완전주문형(full-custom)/반주문형(semi-custom) 설계방식에 의해 레이아웃을 수행하며 관련 모의 실험을 수행한다. 이어 성능개선을 위하여 제안 한 파이프라인 구조를 모의실험을 통하여 타당성을 확인하며 아울러 관련 문제점 및 향후 연구방향에 관해 논한다. 결론적으로, 본 논문을 통하여 MPU의 설계방법을 정립 하였으며, 아울러 성능개선을 위한 아키텍쳐의 설계변화가 가능하였다.

• 한국실내디자인학회논문집
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• 제10호
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• pp.21-27
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• 1997

The purpose of this study was to examine the trends of recently published color studies and the characteristics of the methods and study tools used in the field of interior design and to suggest the desirable study tools which can be practically used in housing color plav. All the color studies published after 1990 were collected and categorized, and the representative studies in the contents and methodologies were selected. The study tools such as image categorizing words, evaluating adjectives, interior photos, color palettes, interior perspectives by computer system, models, etc. were most frequently used in housing color studies. By analyzing the characteristics and restricts of each tool, desirable methods which can be practically used in color plan situation were suggested.

• International Journal of Costume and Fashion
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• 제14권1호
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• pp.63-73
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• 2014

With the rapid development of digital technologies potential exists to expand upon the accessibility of fashion archives and increase their use as a pedagogical tool for research. At present this is compromised due the three-dimensional, tactile nature of the objects being viewed and the fact that they are not necessarily replicable in a digital format. The aim of this paper is to examine art and design students physical object research skills and discuss how they are positioned in relation to creative tools and strategies they use to produce outcomes such as they own collections and design responses. Findings and conclusions are drawn from projects concerned with the development and use of physical and virtual archives and inform the methodology used. Traditional methods and tools within higher education are discussed together with students increased use of digital resources and innovative ways to engage students. The academic challenge of supporting student engagement in archival research across digital and physical dimensions is explored. The papers findings indicate a need for further research considering the impact of digital technology on students' physical integration with archives and the need for more structured support surrounding student physical and digital research investigations.

• Nuclear Engineering and Technology
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• 제49권1호
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• pp.82-91
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• 2017

Liquid alloy systems have a high degree of thermal conductivity, far superior to ordinary nonmetallic liquids and inherent high densities and electrical conductivities. This results in the use of these materials for specific heat conducting and dissipation applications for the nuclear and space sectors. Uniquely, they can be used to conduct heat and electricity between nonmetallic and metallic surfaces. The motion of liquid metals in strong magnetic fields generally induces electric currents, which, while interacting with the magnetic field, produce electromagnetic forces. Electromagnetic pumps exploit the fact that liquid metals are conducting fluids capable of carrying currents, which is a source of electromagnetic fields useful for pumping and diagnostics. The coupling between the electromagnetics and thermo-fluid mechanical phenomena and the determination of its geometry and electrical configuration, gives rise to complex engineering magnetohydrodynamics problems. The development of tools to model, characterize, design, and build liquid metal thermomagnetic systems for space, nuclear, and industrial applications are of primordial importance and represent a cross-cutting technology that can provide unique design and development capabilities as well as a better understanding of the physics behind the magneto-hydrodynamics of liquid metals. First studies for the development of computational tools for the design of liquid metal electromagnetic pumps are discussed.

• Journal of Preventive Medicine and Public Health
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• 제49권2호
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• pp.129-133
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• 2016

Objectives: The systematic review (SR) is a research methodology that aims to synthesize related evidence. Updating previously conducted SRs is necessary when new evidence has been produced, but no consensus has yet emerged on the appropriate update methodology. The authors have developed a new SR update method called 'adaptive meta-analysis' (AMA) using the 'cited by', 'similar articles', and 'related articles' citation discovery tools in the PubMed and Scopus databases. This study evaluates the usefulness of these citation discovery tools for updating SRs. Methods: Lists were constructed by applying the citation discovery tools in the two databases to the articles analyzed by a published SR. The degree of overlap between the lists and distribution of excluded results were evaluated. Results: The articles ultimately selected for the SR update meta-analysis were found in the lists obtained from the 'cited by' and 'similar' tools in PubMed. Most of the selected articles appeared in both the 'cited by' lists in Scopus and PubMed. The Scopus 'related' tool did not identify the appropriate articles. Conclusions: The AMA, which involves using both citation discovery tools in PubMed, and optionally, the 'related' tool in Scopus, was found to be useful for updating an SR.

• 융합신호처리학회 학술대회논문집
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• 한국신호처리시스템학회 2003년도 하계학술대회 논문집
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• pp.122-125
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• 2003

최근 인터넷과 모바일 기기에 대한 소비가 확충되면서 인터넷을 이용하여 기존의 기기를 제어하는 기술을 필요로 하고 있다. 이에 따라 본 논문에서는 모바일 페이지를 만들어서 웹을 통하여 기기를 제어하는 시스템을 디자인하였다. 모바일 웹서버를 이용하여 기기를 제어하는 기술은 그 응용 분야가 홈네트워크, 텔레메틱스 등 넓기 때문에 앞으로 지속적인 연구가 필요할 것으로 보인다.

• 문화기술의 융합
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• 제10권4호
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• pp.645-661
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• 2024

오늘날 4차 산업 혁명에 따른 새로운 기술의 발전은 비대면 협업과 같은 업무수행 방식이 요구되고 있다. 이에 부응하여 다양한 VR 협업 툴이 등장하고 있으나 협업이나 디자인 개발 업무에서 활용되고 있는 VR 협업 툴이 제한적이. 따라서 비대면 협업을 위한 VR의 장점과 가능성에도 불구하고 실무 활용에 있어 한계가 있다. 이에 따라 디지털화되고 있는 업무 환경에서 효과적인 협업을 위한 VR 협업 툴 개발이 필요하며 이를 위한 UI 디자인 개발에 관한연구가 요구된다. 본 연구의 목적은 사용자 조사를 통하여 협업 시 첫 단계인 브레인스토밍 단계에서 나타나는 사용자 행동 요소를 적용한 인터랙션 및 UI 디자인을 개발함으로써 VR 협업 툴 프로토타입을 제안하는 데 있다. 본 연구는 질적 연구로 연구 방법은 관찰과 심층 인터뷰를 통한 사용자 조사를 수행하고 이로부터 얻은 데이터를 분석한 결과로 5가지 사용자의 손짓 행동 요소를 도출하였다. 행동 요소로서의 손짓을 반영한 인터랙션 UI를 디자인하고 Unity와 Oculus Integration SDK Kit를 사용하여 컨트롤러 없이 사용할 수 있는 VR 협업 툴 프로토타입을 제작하였다. 본 연구에서 제작한 프로토타입에 대한 사용성 평가를 실시한 결과 사용자가 손짓을 정확히 행하여야 한다는 어려움이 나타나 UI 디자인의 보완점을 찾아볼 수 있었다. 또한 VR 협업 공간에서 개인 작업과 공유를 위한 공간의 구분을 조절할 수 있는 UI 디자인의 필요성도 알 수 있었다. 본 연구가 업무의 효율성을 높여줄 수 있는 VR 협업툴을 위한 인터랙션 및 UI 디자인 개발에 도움이 되기를 기대한다.