• International Journal of Quality Innovation
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• 제3권2호
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• pp.38-45
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• 2002

Continuous quality improvement is now the focus of research and application in quality engineering. To achieve continuous improvement, it's necessary to integrate quality tools and to plan, design and control the whole process of creating quality. Based on the extensive literature review and the philosophy of concurrent quality engineering, the paper analyzes the relationships among major quality tools such as QFD, FMEA, DOE and SPC and presents a basic model and structure for the integration of quality tools.

• 한국건축시공학회지
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• 제10권3호
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• pp.145-153
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• 2010

BIM은 최근 공공 및 민간 발주자에 의해 활용이 점차 확대 시행 되고 있으며, 설계사무실에서도 BIM을 도입하고자 하고 있다. 이런 흐름에 발맞추어 학부교육에서 BIM의 교육이 필요함을 인지하고, 현재 진행되고 있는 국내 BIM 교육의 현황을 파악하여 학부교육에서 이루어질 수 있는 설계교육 프로세스의 개선을 도출하고자 하였다. 기존에 건축공학 교육과정에 BIM을 활용하여 구조, 시공, 설비의 각 요소의 핵심이 반영된 종합적인 설계가 가능하게 하고자 한다. 3D 중심의 설계를 통하여 구조설계교육을 강화하고 BIM 도구를 활용하여 공정 및 적산을 연계한 시공 CM교육을 강화하고 친환경 사전분석을 통해 친환경설계 교육을 이루도록 설계교육 프로세스를 개선하고자 한다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2007년도 춘계학술발표회 논문집
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• pp.471-474
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• 2007

On the road, geometric structure such as horizontal alignment, vortical alignment and crossing inclination ate important to explain characteristics of road and safety analysis. Especially, horizontal and vortical alignment are have to do with safety of covering. In existing road, for the safety analysis or alignment improvement and expansion pavement, it needs alignment factor of road. Alignment factor of road can be acquired by design drawing. But, design drawing can be not exist because of rack of facility management and national policy that centered to construction. And also, existing design drawing have a lot of differences in comparison with another existing design drawing cause of alignment improvement. In this case, for the precise analysis of alignment, 3-dimensional location information on the road centerline and acquisition of location information which related geometric structure are must to be preceded. In this study, therefore, it provide alignment factors which needed to alignment improvement and road safety analysis by acquisition of road space information and extraction of road centerline data using LiDAR data.

• 산업경영시스템학회지
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• 제4권5호
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• pp.1-10
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• 1981

The purpose of this study is to cut down cost of production and improve the productivity of industry through quality improvement of castings and reduction of defectives by applying the experimental design to the foundry sand mixing operation done at molding department in the foundry. Among the related foundry sand mixing factors which have an effect on casting the experiment of which factors have a dominant effect on quality improvement was performed between two different levels by means of "$2^n$ type orthogonal array." The results cail be summarized as follows ; (1) The optimum conditions per each foundry sand mixing between two different levels proved to be such as $A_2$(used sand) : 24 unit (172.8kg), $B_2$(unused sand ) : 2 unit (15.0kg), $C_2$(binder) : 2.5 unit (4.4kg). $D_2$(addition agent) : 1 unit(1.4kg) and $F_1$(moisture) : 7.4%(14.6kg). (2) As a result of the application of experimental design, the fraction defective during the foundry sand mixing operation turned out to be reduced front 6.6% to 2.04%. (3) For the purpose of cost-down, It was found that the optimum level decision of foundry sand mixing for various castings is required to be made by means of experimental design.al design.

• 한국건축시공학회지
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• 제8권1호
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• pp.97-102
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• 2008

The report of the Korean Board of Audit and Inspection(BAI) on May 2007 indicates the problems of Life Cycle Cost (LCC) analysis and evaluation in the Design-Build(Turn-Key) and alternative bidding system. The point which the report indicates is that the cost estimation system for LCC analysis has nothing in common each other and there's no consistency among the repair cycle and ratio per facilities parts. For solving these problems, BAI demands the establishment of the guidelines for LCC analysis and evaluation from the competent authority Korean Ministry of Construction And Transportation(MOCT). The objective of this study is to develop the improvement directions for LCC analysis and evaluation which are suitable to the public construction projects especially for the Design-Build and alternative bidding system in Korea. For this study, the LCC related raws and regulations, LCC analysis guidelines of public cooperations, actual condition of LCC analysis and evaluation which include, the elements of LCC, the estimation rules of the initial cost and the maintenance cost, the analysis standards of time value of money, etc. are investigated to provide the improvement directions for LCC analysis and evaluation.

• 설비공학논문집
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• 제27권6호
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• pp.300-306
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• 2015

For an asymmetric scroll compressor for heat pump application, a numerical simulation was carried out to investigate the effects of injection port design on the compressor's performance under gas injection. To validate the simulation, the numerical results were compared with experimental results obtained from a scroll compressor with a base injection port design. There was good agreement between simulation and experimental results, with around a 1% difference in the injection mass flow rate when the injection pressure was below $12kgf/cm^2A$ for the heating mode. Various injection port angular positions were numerically tested to yield better injection performance. The largest improvement in heating capacity was obtained at angles of $240^{\circ}$ and $200^{\circ}$ inward from the scroll wrap end angle for low-temperature and standard heating conditions, respectively, while the maximum COP improvement was at $365^{\circ}$ and $280^{\circ}$, respectively. A considerable improvement in cooling capacity was also found at the injection port angle of $240^{\circ}$.

• 한국조경학회지
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• 제29권5호
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• pp.43-50
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• 2001

This design proposal was accepted to a design competition for the improvement of Indi Youth Street, Mapo-Gu, which was held by the Seoul Metropolitan Government in June, 2000. The \`Hong-ik University District\` projected area consists of several streets, where the independent and youth culture unique to this area is blossoming-Indi music, underground arts, and historic meaning of the area as an estuary of Mapo. The site is also expected to attract many citizens and fereigners because of convenient accessibility of the new subway station to the Inchon International Airport and because of many attractions on the street- foods, music, art and people. Accordingly, the proposal set the main design concept of this project as \`the Street of Youth Culture\` considering its special and social status as well as the physical improvement of the street environment. With this concept in mind, the proposal designed the improvement of the physical conditions based on the motive of \`the Street of Youth Culture\`, having Indi/under art, Indi/ under music, Indi/under drama and Indi/multimedia animation. This design proposal of the Street of Youth Culture consist of three segments, which symbolize the millenium Youth Plaza, MultiMedia Animation Pocket and Arts Exhibition Pocket based on unity and balance. This plan has the ultimate aim of making the district one of the people\`s favorite streets in Seoul, which people love to visit again and find the vivacity of the new millennium youth culture.

• 한국기계가공학회지
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• 제16권1호
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• pp.58-62
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• 2017

In this paper, we studied the structural design for safety improvement of the winch mount of the armored recovery vehicle. From the finite element analysis using the safety factor of the original winch mount, the results determined that the safety factor was very low, namely 1.14 at $-15^{\circ}$ when towing the maximum force. For considering the usage and safety, the safety factor needs to increase to between 1.4 and 1.6. To improve the safety factor, a re-design, such as shape modification and strengthening the welded zone, was performed. After the improvement of the structural design, the safety factor of the improved mount was calculated at 1.78, an increase of about 56.1% from that of the original mount.

• 품질경영학회지
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• 제47권3호
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• pp.467-478
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• 2019

Purpose: The purpose of this paper is to improve quality for water infiltration to FCISA during military aircraft operation. Methods: A series of troubleshooting studies were conducted to identify the root cause of the water infiltration and reproduce the defects through various simulation tests. And design improvement measures were derived, and countermeasures were taken to prevent recurrence of moisture inflow defects. Conclusion: FCISA operates a very important role in the operation of military aircraft, and defects due to water infiltration are very fatal to flight safety. In this study, the root cause was identified and the design improvement to prevent recurrence was carried out through the failure investigation performed in this study, and the FCISA was improved so that the flight safety was not affected. The results of this study will be valuable back data that can be reflected in the design process through Lessons-Learned in the design phase of the aircraft that will be developed in the future.

• 한국실내디자인학회논문집
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• 제21권4호
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• pp.114-120
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• 2012

There are lots of buildings which were built before the Legislation on building energy rating system. Remodeling of the buildings would be required for an improvement of the building energy rating system was enforced by the government. In the Passive Building Design, Elements which will be used for the remodeling are Insulation, Window, External venetian blind, Heat exchanger. The Purpose of this study is to indicate a Method for the improvement of Energy saving by an analysis of Construction Cost, Cost Evaluation, Energy performance Efficiency in applied design elements. In this study, the remodeling of existing public buildings to improve energy efficiency rating was applied to extract the elements of design-specific energy performance, efficiency, and the application of the designs that has been analyzed. The results were as follows: applying the design-specific cost-effective investment that represents the economy (investment efficiency/%) surveyed the average insulation(7.0%), triple glazed windows(10.1%), double glazed windows(12.1%), external shading(24.5%), and Heat(77.2%) were analyzed in order to be more efficient. Analysis of the basis of information on the existing public buildings to improve energy efficiency rating for the remodeling depending on driving conditions at a degree of individual difference. The main effect, however, depending on economic investment, design elements, heat exchangers, external awning, double glazed windows, triple glazed windows, insulation, is recommended as review of the order shall be determined.