• Geotechnical Engineering
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• v.7 no.1
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• pp.15-32
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• 1991

Recently, the rational methods of pavement design and analysis using the resilient modulus, MR, as fundamental input material property have been increasingly adopted in major advanced countries. Since the development of 1986 AASHTO Guide for Design of Pavement Structures, many researches concerning the resilient characteristics of various pavement materials as well . as development of reliable testing methods have been actively performed. Anticipating the use of Mn-based pavement design and analysis such as resilient characteristics and Mn - CBR relat - ionship of domestic subgrade soils were performed including development of a standard MR test procedure suitable for subgrade soils in our country.

• Proceedings of the ESK Conference
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• 1996.10a
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• pp.125-140
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• 1996

Human Factors Engineering(HFE) program should be developed from the early stage of the design process for Nuclear Power Plant. The HFE program is conducted in accordance with the guidance in the Standard Review Plan(SRP) NUREG 0800, Chapter 18. The major purpose of this program is to reduce the incidence of human error during the operating life of the plants. A comprehensive human factors program is prepared by KOPEC to assure that key elements of human factors involvement are not inadvertently overlooked and the early, complete, and continuing inclusion of HFE in the design process. This paper is to introduce engineering steps of the HF activities to verify that the HF involvements on man-machine interface are adequate to support safe and efficient operation of nuclear power plant. If systems are developed without sufficient consideration on the HFE in the design, such systems may cost a high price due to the malfunction of the plant induced by the human errors.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2006.04a
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• pp.836-840
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• 2006

Design optimization of layered plates bonding process is conducted to achieve high product quality by considering uncertainties in a manufacturing process. During the cooling process of the sequential sub-processes, different thermal expansion coefficients lead to residual stress and displacement. thus resulting in defects on the surface of the adherent. So robust process optimization is performed to minimize the residual stress mean and variation of the assembly while constraining the distortion as well as the instantaneous maximum stress to the allowable limits. In robust process optimization, the dimension reduction (DR) method is employed to quantify both reliability and quality of the layered plate bonding. Using this method. the average and standard deviation is estimated. Response surface is constructed using the statistical data obtained by the DRM for robust objectives and constraints. from which the optimum solution is obtained.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.20 no.3
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• pp.155-166
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• 2008

The performance evaluation of a new building is becoming more important because efficient design alone is often not sufficient to deliver an efficient building. However, there is a lack of standard evaluation methods to measure the energy performance of a new construction that has Energy Conservation Design Measures(ECDMs). This study presents an enhanced method based on calibrated whole-building simulation for evaluating the energy performance of new commercial buildings and demonstrates its use using a case-study building, including: an Energy Use Index(EUI) comparison with sub-metered data and an evaluation of the performance of specific ECDMs. The use of this method has determined that the case-study building was shown to use approximately 47% less energy than the base-case building that has the same shape and function as the case-study building(i.e., calibrated as-built simulation mode]), but doesn't include the simulated ECDMs.

• Proceedings of the KSRS Conference
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• 2008.10a
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• pp.262-265
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• 2008

We design level 1 traffic thematic map for common data structure. Level 1 means the road that can passing cars. If public office and private company use this form, they can save amount of money from overlapping update. And widely use of traffic analysis, navigation and traffic information system. For design common data structure we compared several data structure(traffic thematic map, ITS standard node/link, Car navigation map), and generalization these characteristic data. After generalization we considered about application parts. It can use of public part(traffic analysis, road management, accident management) and private part(car navigation, map product, marketing by variable analysis) etc.

• Korean Journal of Optics and Photonics
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• v.28 no.4
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• pp.141-145
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• 2017

We design an F/1.8 smart -phone camera lens utilizing he Forbes aspherical-surface equation, which can effectively create a strong asphere, compared to the conventional, standard aspherical equation. We also describe the principal methodology and procedural steps of optical design to achieve specifications.

• Journal of Information Technology Applications and Management
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• v.14 no.3
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• pp.151-168
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• 2007

RFID is an emerging technology and rapidly applied to various industries due to its high-tech characteristic and convenience. Although RFID provides valuable benefits. it might also generate serious privacy problems. Previous studies show that privacy issues should be incorporated in developing RFID systems and more detailed privacy protection methods. However. they just provide basic concept, rough guideline. and simple architecture about RFID privacy protection. Industry needs more structured framework and detailed systematic process to incorporate privacy issues into the RFID system. The purpose of this paper is to develop a framework and detailed process design of RFID privacy protection issues in retail industries. A framework is developed based on individual sensitivity concept, RFID contents, and interface with EPC global standard. Case study is applied to validate the framework and it turns out to be useful. It is expected that the proposed framework and process design would provide more systematic guide lines to solving RFID privacy problems.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.41-42
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• 2014

본 논문에서는 스마트폰 케이스에 제품디자인에 있어서 패턴 디자인 활용사례를 알아보고 주조색 분석을 통해 패턴디자인 트렌드를 살펴보는데 그 목적이 있다. 주조색 추출에 사용된 스마트폰 케이스는 +D프로젝트에 출시된 자료를 활용해 9명 디자이너 별 대표제품 2개를 분석했으며, 분석은 한국 표준색 색채분석, KSCA (Korea Standard Color Analysis) 프로그램을사용하여 각각의 이미지에서 5%이상 쓰인 주조색을 추출 하였고, Hue&Tone 분포를 통해 스마트폰케이스 패턴디자인에 사용된 색채 트렌드를 알아보고자 한다. 스마트폰케이스에 사용된 전체 주조색들을 살펴보면 색상에 있어서는 붉은색(R) 과 보라색-파랑색(PB) 의 분포가 상대적으로 높게 나타났고, 색조에 있어서는 밝은(B), 옅은(P) 톤이 가장 많이 사용 된 것을 알 수 있다. 향후 연구에서는 색채를 통한 감성분석을 연구해 스마트폰 케이스 제품디자인에 있어서 색채와 감성 간의 상관관계를 알아보고자 한다.

• Proceedings of the KSR Conference
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• 2005.11a
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• pp.462-467
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• 2005

Design standard specifications for structures applied to Seoul-Pusan High Speed Rail construction were established in 1991. Those specifications have been changed and supplemented in the process of above construction, and need to improve in accordance with the new criteria for construction works of Korean government. Also, a settlement of the criteria for prevention against disasters of Seoul-Pusan High Speed Rail is needed, and related specifications have been revised. The design criteria for Seoul-Pusan High Speed Rail are enacted with knowhow which resulted from High Speed Rail construction, and those are enacted for the purpose of establishing criteria for High Speed Rail construction in the inside and outside of Korea.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.364-369
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• 2002

The purpose of this paper is to introduce the concept design and the structural strength of the double-deck rolling stock vehicle. Aluminum is very useful material for the carbody structure due to its characteristic of light weight. Large alumillum extrusion profiles(panels) have toe of merits such as easy production of complicated shapes, reduction of welding and cutting lines, and cutting down the labor cost. AED type is being applied to the standard EMUs and the EMUs Kwangju subway in Korea. Light material recommended the double-deck rolling stock vehicle because the center of gravity of the train is higher and its weight is heavier than those of the normal vehicle. So we applied the technology of the large aluminum extrusion profiles(panels) to the double-deck vehicle. We performed the structural strength analysis and examined its safety.