• Journal of the Korean Society of Clothing and Textiles
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• v.19 no.1
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• pp.149-160
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• 1995

Consumer satisfaction and dissatisfaction is a important concept which composes the quality of life. It is especially important for fashion marketers to know the content of consumer dissatisfaction, because they can eliminate or minimize the sources of dissatisfaction to promote marketing efforts. The purpose of the study is to find out the content of dissatisfaction that consumers experience in buying process, and to see if the content of dissatisfaction differ according to consumers' buying practices and consumer charateristics. A questionaire was developed to measure consumer dissatisfaction, clothing buying behavior, clothing involvement and demographic characteristics. The questionaire was administered to 469 female adults during the spring of 1994. Social wear was selected as a clothing item for this study. The results of the study were as follows; 1. Consumer dissatisfaction in clothing buying process was analyzed into seven factors, such as sales personnel, quality and size, information and service, buying decision, product variety, shopping environment, and discounts sale. 2. According to consumers' clothing buying behavior, clothing involvement and demo- graphic characteristics, there were significant difference in consumer dissatisfaction.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.56 no.4
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• pp.660-668
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• 2007

In order to improve the efficiency of service restoration function in the current Distribution Automation System (DAS), in this paper it is proposed a more advanced and efficient service restoration approach using Multi-Agent technique based on distributed networks. In the current DAS, communication networks or protocol structures are centralized with communications between the central station and FRTU through 1:1 connection. In order to maintain the current systems and enhance the proposed Multi-Agent based service restoration scheme, a device of communication and intelligence, named MASX, is newly developed to make a FRTU as an agent to cooperate each others. the proposed system applied in a demo system for an distribution automation system and shows 8 times reduction of restoration time in restoration of blackouts.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2015.11a
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• pp.206-211
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• 2015

신규 기술 기획시 해당 기술의 파급효과 중 하나로 관련 산업에 미치는 영향에 대하여 강조하는 추세이다. 그러나 시장이 형성되지 않는 제품에 대해서는 이러한 파급효과 추정이 용이하지 않다. 본 논문은 특허분석을 통하여 시장 현황 파악이 어려운 신규기술의 기획시 잠재 산업을 발굴하는 방법론을 제시하고 실증사례로 핵융합 실증로에 적용하고자 한다. 특허 분석 방법론은 특허 검색 범위에 따라 파악 가능한 잠재산업의 수준을 검토한다. 적정한 특허 검색 범위가 확인되면, 특허분석을 수행한다. 분석결과는 IPC 코드 등 특허의 산업 코드, 개별기업의 매출, 주제어 등을 활용하여 잠재산업을 발굴하는 방법을 제시한다. 이러한 방법론은 이미 기획된 핵융합 실증로에 적용하여 유용성을 검토한다,

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.242-243
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• 2006

The compatibility between different automation devices hasn't been difficult any longer while the new standard IEC61850 is imposed which provides efficient implementation on both embedded and non-embedded system. While implementing the substation automation, different devices from different company may be an obstacle to system designing. However, with the help of IEC61850 this problem can be neglected. In this paper the newest development of the demo system based on IEC61850 will be introduced.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.650-653
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• 2011

In this paper, we describe Bluetooth system and Bluetooth security. And we analyze the structure of information security and vulnerability, introduced one of Bluetooth hacking techniques. We show a demo of the attack process to inject arbitrary hands-free voice messages and save the file information, recording a conversation through hands-free device.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.8
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• pp.1526-1531
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• 2009

In this paper, for the first time a new type of narrow-range angle sensor based on inductive effect is introduced and studied. A prototype steering angle sensor is also designed and fabricated to compare the characteristics of the four methods from the viewpoints of sensitivity, linearity and resolution, angle range of the sensor output. This sensor is designed to be sensitive to very small resolution in angle with detected range is scaled down to about 12bit. An intensive investigation has been carried out to study the behaviors of the sensor and optimize its performance by signal compensation. These behaviors are discussed and explained using an analytical and experimental testings. Moreover, Application possibility of the sensor are proposed and a demo device based on the sensor is presented.

• Nuclear Engineering and Technology
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• v.52 no.2
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• pp.323-327
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• 2020

In this study, the neutronic calculation to obtain tritium breeding ratio (TBR) in a deuterium-tritium (D-T) fusion power reactor using Monte Carlo MCNPX is done. In addition, by using COMSOL software, an efficient cooling system is designed. In the proposed design, it is adequate to enrich up to 40% ⁶Li. Total tritium breeding ratio of 1.12 is achieved. The temperature of helium as coolant gas never exceed 687℃. As regards the tolerable temperature of beryllium (650℃), the design of blanket module is done in the way that beryllium temperature never exceed 600℃. The main feature of this design indicates the temperature of helium coolant is higher than other proposed models for blanket module, therefore power of electricity generation will increase.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.8 no.5
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• pp.167-172
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• 2008

The purpose of the project was intended to show an application method of RTOS to PICmicro with limited resources with several tasks controlling the peripheral devices. The application runs on the designed PIC16F87x evaluation board with a bootloader burned so the application program can be easily downloaded using the serial communication without using the ROM writer. Thus, it would also be a good example to use for instructional or tutorial purposes for PICmicro education. The demo shows a useful examples who wish to use the real time operation system in their own projects.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.26 no.7
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• pp.23-29
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• 2012

A single line diagram is a graphic user interface to represent electrical connectivity between power equipments in distribution automation systems. This paper proposes a new single line auto-drawing technique based on the service oriented architecture. Web service, CIM(Common Information Model) and SVG(Scalable Vector Graphics) are adopted to implement SOA concept. A web service demo system was established which is configured with the service provider, consumer and broker to verify the feasibility of this study.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.57 no.7
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• pp.1141-1149
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• 2008

Most faults are single-phase-to-ground fault in ungrounded system. The fault currents of single-phase-to-ground are much smaller than detection thresholds of measurement devices, so detecting single-phase-to-ground faults is difficult and important in ungrounded system. This paper proposed to a FI(Fault Indicator) generation algorithm in ungrounded system. The algorithm just using line-to-line voltage and zero-sequence current detects fault line, fault phase, fault section and FI(Fault Indicator) at terminal device, This paper also proposed to application plan for this algorithm. In the case study, the proposed algorithm has been testified in demo system by Matlab/Simulink simulations.