• 조명전기설비학회논문지
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• 제23권11호
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• pp.34-43
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• 2009

SCADA (Supervisory Control and Data Acquisition) system has been used for remote measurement and control on the critical infrastructures as well as modem industrial facilities. As cyber attacks increase on communication networks, SCADA network has been also exposed to cyber security problems. Especially, SCADA systems of energy industry such as electric power, gas and oil are vulnerable to targeted cyber attack and terrorism Recently, many research efforts to solve the problems have made progress on SCADA network security. In this paper, flexible key distribution concept is proposed for improving the security of SCADA network using Multiagent System (MAS).

• 대한가정학회지
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• 제40권5호
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• pp.95-108
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• 2002

In this paper I will try to analyze some studies about the ‘Postmodern Family’in Western countries. I will try to find out, above all in Western countries, how much the concepts “Plurality”, “Individuality”, “Deinstitutionalisation”, “Relation”and “Postmodernism” are linked to each other. Also the ‘Postmodern Ftmily’concept is an interesting topic for the understanding of the recent changes and in future in the Korean family. In this paper I will try to explain the Korean family change with the concept and phenomenon ‘Postmodern Family’. The discussion about the ‘Postmodern Family’will provide much stimulus for the Korean family research area. Also this discussion about ‘Postmodern Family’for the recent Korean family research will be an important attempt to give a new light in studying the Korean modem family.

• 대한가정학회지
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• 제37권9호
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• pp.85-101
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• 1999

The purpose of this study is to investigate how much traditional family ethics exist in morden society. For this goal, I have analyzed norm consciousness of the family among adolescent, middle and old generation. In this research, three kinds of questionnaire were used and the data were obtained from 1,661 samples of three generation groups living in Gyengnam area. The major findings obtained from this study are as follows: First, the filial piety and consciousness for supporting their parents were not changed at all in traditional family ethics. The filial piety and consciousness for supporting their parents are the most important family concepts without showing any difference in generation-gap in modem society. Second, the decreasing traditional norm consciousness of family was familism value. Specialty the familism value becomes weaker from old to younger generation. Third, the filial piety and familism value were shown to be the important factors to support their parents. These concepts showed same trends without showing generation-gap.

• 대한가정학회지
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• 제41권11호
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• pp.21-33
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• 2003

According as the importance of brand value has increased, it's so significant that we analysis brand loyalty and buying-behavior types in the side of various consumption. Also, it will make it for us to presuppose consumer's buying-behaviors in modem society. As an analytical result of consumer's buying-behavior type, they were divided into four type; price value consciousness type, sale orientation type, price-quality schema type, convenience type. As a result of cluster analysis and one-way ANOVA on the three type of consumer's buying-behavior : Price-orientation type, high quality orientation, convience orientation. And it was found that there was relation between buying-behavior types and brand loyalty. Specially, it was high positive relationship between high quality orientation and brand loyalty, convience orientation and brand loyalty.

• Asian-Australasian Journal of Animal Sciences
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• 제11권6호
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• pp.774-780
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• 1998

This report includes an extensive bibliography of research articles investigating various facets of rearing neonatal piglets using liquid diets, and includes historical publications dating back to the 1940's. However, in order to provide concise and timely focus for application in modem swine production, only a selected number of recent findings are reviewed in detail. Collectively, the data presented illustrate that growth of piglets fed liquid diets can greatly exceed that of littermates fed dry diets and can even exceed growth rates of sow-reared controls (by up to 160%). The central questions that remain unanswered are: 1) Can this improved performance be obtained routinely and economically under applied farm conditions? and if so, 2) Does improved growth during the early-weaning period translate into improved net economic returns overall? Unfortunately, due to the current practical management constraints related to liquid-diet feeding (i.e., lack of an easy-to-manage feed delivery system), limited data are available which examine the efficacy of liquid-diet feeding under practical, commercial farm conditions.

• 복식
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• 제51권8호
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• pp.43-49
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• 2001

Galliano's works showed at Dior Collection in 1997 which was held for the 50th anniversary of New Look got a good evaluation in the sense of expressing the modern taste as well as reflecting the spirit of Dior. The purpose of this study is focused on observing how to adapt the Dior's spirit. to Galliano's own design and what is the factor to let us feel his works modern. Galliano's fifty works in that Collection are analyzed by content analysis. The result is as followed : Galliano created his fabulous and modern works by four ways such as using various ethnic details, new way of fabric usage, new construction. and differentiated color harmony from Dior's. This result also includes the methodological model to adapt to design process.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2000년도 춘계학술대회논문집A
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• pp.566-572
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• 2000

The System identification is the process of developing or improving a mathematical model of a physical system using experimental data of the input, output and noise relationship. The field of system identification has been an important discipline within the automatic control area. The reason is the requirement that mathematical models having a specified accuracy must be used to apply modem control methods. In this paper, it is confirmed that we can obtain transfer function of flexible beam that is expressed in the forms of identified state-space system matrix A, B, C, D and identified observer gain G using Eigensystem Realization Algorithm including singular value decomposition. And these matrices can be applied to the automatic control. In addition to, it is also confirmed that transfer function can express a system using identified observer gain G, in spite of a noisy data or a periodic disturbance.

• 한국음향학회:학술대회논문집
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• 한국음향학회 2001년도 추계학술발표대회 논문집 제20권 2호
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• pp.9-12
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• 2001

본 논문에서는 유럽 통신 표준화기구인 ETSI 의 SMGll에서 채택된 GSM Full Rate(FR) 보코더 알고리wma[1]을 Teak DSP Core를 이용하여 실시간 구현하였다. GSM FR 보코더는 유럽에서 사용하는 통신 시스템인 GSM 의 full-rate Traffic Channel(TCH)의 표준 코덱[2]으로서 GSM HR, GSM EFR GSM AMR과 더불어 모뎀칩 내에 장착되는 필수적인 음성 서비스이다. 구현된 GSM FR는 13.05kbps의 비트율을 가지고 있으며, 인코더와 디코더 기능 외에 voice activity detection(VAD)[3]블록과 DTX[4]블록 등의 부가 기능도 구현되어 있다. 구현에 사용된 Teak[5]는 DSP Group 의 16bit고정 소수점 DSP core로서 최대 140MIPS 의 성능을 낼 수 있고 400bits ALU 와 두개의 MAC 이 장착되어 있어 음성 및 채널 부호화기의 실시간 처리에 최적화 되어있다. 구현된 GSM FR 은 인코더와 디코더 부분이 각각 약 235 MIPS 및 1.19MIPS 의 복잡도를 나타내며, 사용된 메모리는 프로그램 ROM 3.9K words, 데이터 ROM(table) 396 words 및 RAM 932words이다.

• 복식문화연구
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• 제11권4호
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• pp.551-561
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• 2003

The regulations for costume were set to improve people's moral fiber and cultural standards. In the 17th and 18th century, the main aim of this regulation was to prohibit luxury. But being the turning point to a modem state, with breaking social status and development of commerce, industry, and the mind of imitation, regulation for luxury wasn't enforced, but rather it brought many revolutionary changes in costume. Restraining human impulse to express beauty was no longer subject to regulation. Therefore, people started to recognize the human figure with shorter Jegory(저고리) and strengthened ceremonial capacity by broadening po's(포) sleeves. The silk fabrics were the most popular fabric during this era, special patterns were added for decoration and also for blessings. Complementary colors were used for contrast on the collar (깃), cuffs (끝동), Gyotrnagi (곁마기), and sash (고름). This color composition gave a younger and more active look. And with red stripes on the sleeves, it emphasized the beauty of the color arrangements as well as providing protection from the devil.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2001년도 춘계종합학술대회
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• pp.452-455
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• 2001

리모컨을 사용하는 TV, 오디오 기기에서 사용하지 않는 대기 시간에 버려지는 대기 전력을 차단할 수 있는 회로를 개발하여 가전기기 및 산업용 기기의 대기 상태를 간단한 회로 변경으로, 원가 부담없이 대기 전력을 완전하게 차단하는 회로를 개발하였다.