• Proceedings of the KSME Conference
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• 2003.04a
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• pp.1187-1192
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• 2003

The computer is an important tool to design an engineering system and CAD systems are widely used for various design practice. To meet the market requirements, the old mass production system is being changed into the mass customization system. As for CAD systems, it is increasingly required to extend, automate, and customize a wide range of functionality. This article describes the state-of-the-art of the principal technologies for customizing CAD systems. And we have implemented an application that enables the parametric design by directly inputting numerical values of parameters for a CAD model. Based on this application, we have developed another system that makes it possible sharing of part family data between SolidEdge and Pro/Engineer. Through customization of CAD systems, it is possible to improve the product quality using external knowledge-based systems or to integrate with external system such as CAE tools. This paper can be a guide for engineering designers who want to customize CAD systems.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.14 no.3
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• pp.1-8
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• 2015

Recently, a great interest in 3D printing has emerged, although many existing 3D printing technologies were first developed 2-3 decades ago. There are many mature 3D printing processes and materials; however, active research and development efforts are ongoing in this area to advance the technologies. Several companies have already started to use 3D printed parts as actual components. Many low-cost 3D printers have been released on the market, which are of particular interest to educators and hobbyists. This paper provides a brief review of 3D printing technologies and research trends. In addition, several state-of-the-art technologies and applications are introduced.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1994.04a
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• pp.678-687
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• 1994

점차적으로 다양해져 가는 고객의 요구에 따라, 전자산업에 민감한 영향을 받는 엔지니어링 플라스틱 생산체제도 점차 다품종 소량 생산체제로 전화하고 있다. 이에 따라 기업의 내부조직에 있어서 생산성을 우선적으로 고려하는 생산부문과 납기를 우선적으로 고려하는 영업부문과의 생산스케쥴링에 관한 협의 업무가 전체 생산성을 저하시키는 요인으로 작용하고 있다. 본 시스템은 생산스케쥴링을 자동적으로 작성함으로써 영업부문에 스케쥴링 능력을 부여함으로써 생산스케쥴업무를 단일화하여 양 부문간의 협의업무를 간소화하고 생산부문에서는 생산에만 전력할 수 있도록 하여 전체 생산성을 향상시키는 데 그 목적이 있다. 본 시스템의 개발에 있어서 전문가 시스템 개발 tool로는 ART-IM을 사용하였고, GUI는 OSF/Motif로 구현하였다.

• International journal of advanced smart convergence
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• v.5 no.3
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• pp.27-31
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• 2016

High-tech industries in a state well enough to troubleshoot hacking information introduction a big barrier to delay the growth of the market related to IoT(Internet of Things) as is likely to be on the rise. This early on, security issues introduced in the solution, a comprehensive solution, including the institutional laws/precautions needed. Recent examples of frequent security threats while IoT is the biggest issue of introducing state-of-the-art industry information due to the vulnerable security hacking. This high-tech industries in order to bridge the information responsible for the target attribute, target range, and the protection of security and how to protect the subject, IoT environment (domestic industrial environment) considering the approach is needed. IoTs with health care and a wide variety of services, such as wearable devices emerge. This ensures that RFID/USN-based P2P/P2M/M2M connection is the implementation of the community. In this study, the issue on the high-tech industrial information and the vulnerable security issues of IoT are described.

• Journal of the Korea Fashion and Costume Design Association
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• v.12 no.4
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• pp.173-182
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• 2010

In this study, textile designs were developed by applying Norigae for motives, were digital-printed for it's eco-friendly, delicate and short printing time and as final products, necktie, bag and bedding was developed with them. The purposes of this study were to develop a unique textile design, and then to enhance the competitiveness of Korean textile industry in the world market and pass down a Korean traditional fiber art cultural legacy. The results are as follows Norigaes are a sort of Korean traditional ornaments worn on women's Korean traditional costume. These can vary in color, material, shape, composition and said to have very high artistic value from the standpoint of the modern view. And these are symbols of happiness and women's longing of Korean traditional society. So Norigaes are worthy of applying Korean traditional motive for modern textile design. The textile designs applied a Norigae in this study were estimated comparatively high.

• Journal of Welding and Joining
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• v.31 no.1
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• pp.33-37
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• 2013

Robotized MIG welding of large aluminium components for high speed trains is state-of-the-art. The implementation of online laser cameras enables seam tracking and adoptive modification of welding parameters. A constant fill is achieved regardless of the gap tolerances. Friction Stir Welding has been introduced to the market as a reliable and fast joining technology. The advantages of high welding speeds and the elimination of arc light, fumes and liquefaction in the welding spot lead to economical realisation of heavy-duty gantry systems. FSW robots offer a high flexibility with regard to welding of curved parts, and can be equipped with laser cameras for exact joint tracking.

• Applied Chemistry for Engineering
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• v.3 no.4
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• pp.535-546
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• 1992

The molten carbonate fuel cell(MCFC) has been under Intensive development for the last decade as a second generation fuel cell. The advantages of the MCFC over the phophoric acid fuel cell are higher efficiency, its ability to accept CO and $H_2$ as a fuel, lower material costs, and high operating temperature making internal reforming possible. These features, along with low atmospheric emissions, will open up a significant market as an attractive means of developing highly efficient power plant. This article reviews a status of the MCFC research and development, a principle of the MCFC, and cell and stack technology including the status of electrodes, matrices and electrolytes. Several technical difficulties which must be resolved to be commercialized art mainly focused.

• International Journal of Automotive Technology
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• v.2 no.2
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• pp.47-52
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• 2001

For the wear protection of cylinder bore in aluminum cast material the internal plasma spraying technology offers a new economical solution. The size and the weight of the engine blocks significantly can be decreased in comparison with the traditional cast iron sleeves. The coefficient of friction between piston ring and cylinder wall sensitively can be reduced and the wear resistance increased from several factors. The paper gives an overview of the technology from the AlSi cast alloys for engine block to the non destructive testing technology used after the machining by diamond honing. The actual results in engines of different types also will be shown. The economical advantages of the plasma spraying (or the internal coating in cylinder bore also will be discussed in comparison with the different alternatives of technology. The aspect of the market introduction also will be discussed in this paper.

• Proceedings of the KIEE Conference
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• 2001.11b
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• pp.435-437
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• 2001

The change of the electricity charge from cost base to price base due to the introduction of the electricity market competition causes consumer to choose a variety of charge schemes and a portion of loads to be affected by this change. Besides, it is required the index that consolidate the price volatility experienced on the power exchange with gaming and strategic bidding by suppliers to increase profits. Therefore, in order to find a mathematical model of the sensitively-responding-to-price loads, the price-sensitive load model is needed. And the development of state-of-the-art technologies affects the electricity price, so the diffusion of high-efficient end-uses and these price affect load patterns. This paper shows the analysis on learning curves algorithms which is used to investigate the correlation of the end-uses' price and load patterns.

• Management & Information Systems Review
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• v.21
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• pp.189-208
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• 2007

This study was designed to find what impacts store attributes and personal characteristics have had on customer loyalty to beauty shops. Participants were 283 men and women who had experienced services in beauty shops and selected from the Metropolitan area, Busan, Gyeongbuk area, Gyeongnam area, Chungcheong area, and other area. In conclusion, technical factor and lifestyle have had the greatest impact on customer loyalty to beauty shops. In beauty market faced with keen competition, the way to meet customers' needs is to run a distinguished beauty shop with distinct beauty techniques in consideration of individual lifestyle. This will help raise customer loyalty to beauty shops. This study has the important implication that personal characteristics as well as store attributes has been proved to be essential for increasing customer loyalty to beauty shops. I hope that future studies will continue to examine different marketing factors by different beauty shops, with additional analysis on the details, contributing to make a marketing strategy available for beauty shop owners.