• 제목/요약/키워드: Jong-Hwa AN

검색결과 1,242건 처리시간 0.029초

대순진리의 도가적 배경에 관한 고찰 (A Study on Context of Taoism in DaesoonJinri)

  • 이종성
    • 대순사상논총
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    • 제20권
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    • pp.273-315
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    • 2009
  • The purpose of this study is to examine the mutual similarities between DaesoonJinri(大巡眞理) and Taoism thought as well as the thought mechanism of DaesoonJinri based on contents of the four tenets of DaesoonJinri (EumYangHapDeok(陰陽合德), SinInJoHwa(神人調化), HaeWonSangSaeng(解冤相生), DoTongJinGyeong(道通眞境)). DaesoonJinri attached a lot of importance to Taoism among traditional thought such as Confucianism, Buddhism, Taoism. This study will check out the clues from the major texts of Taoism. To do this, this study kept an aye on the Taoism texts such as Laozi, Zhuangzi, Taipingjing, etc. The significant implication of this study is only contextual similarities between DaesoonJinri and Taoism Philosophy. Therefore, this study will provide the preliminary data to researcher searching for the directly ideological contact point between DaesoonJinri and Taoism thought.

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MUSIC-based Diagnosis Algorithm for Identifying Broken Rotor Bar Faults in Induction Motors Using Flux Signal

  • Youn, Young-Woo;Yi, Sang-Hwa;Hwang, Don-Ha;Sun, Jong-Ho;Kang, Dong-Sik;Kim, Yong-Hwa
    • Journal of Electrical Engineering and Technology
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    • 제8권2호
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    • pp.288-294
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    • 2013
  • The diagnosis of motor failures using an on-line method has been the aim of many researchers and studies. Several spectral analysis techniques have been developed and are used to facilitate on-line diagnosis methods in industry. This paper discusses the first application of a motor flux spectral analysis to the identification of broken rotor bar (BRB) faults in induction motors using a multiple signal classification (MUSIC) technique as an on-line diagnosis method. The proposed method measures the leakage flux in the radial direction using a radial flux sensor which is designed as a search coil and is installed between stator slots. The MUSIC technique, which requires fewer number of data samples and has a higher detection accuracy than the traditional fast Fourier transform (FFT) method, then calculates the motor load condition and extracts any abnormal signals related to motor failures in order to identify BRB faults. Experimental results clearly demonstrate that the proposed method is a promising candidate for an on-line diagnosis method to detect motor failures.

시장환경 변화를 고려한 국내 다량우편물 물량예측 (Demand Forecasting of Direct Mail Considering the Changes of Market Environments)

  • 이덕주;김기홍;안재경;김종화;이성준
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회/대한산업공학회 2005년도 춘계공동학술대회 발표논문
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    • pp.784-793
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    • 2005
  • 본 연구에서는 국내 다량우편물 시장의 물량 현황을 고찰하고, 시계열자료를 이용한 물량예측을 목적으로 한다. 특히 다량우편물 수요를 예측함에 있어서 우편 물량의 변화가 경기 변화에 많은 영향을 받는다는 사실과 통상우편의 이메일 대체 현상이 우편 물량 변화에 영향을 미칠 것이라는 판단 하에, 이러한 우편시장 환경의 변화를 고려한 우편 물량 예측을 시도해 보고자 한다.

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DEA를 이용한 지상파 디지털 방송 경쟁력 분석 (Analysis of terrestrial digital TV broadcasters using DEA)

  • 안재경;김우제;김종화;박천일
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회/대한산업공학회 2005년도 춘계공동학술대회 발표논문
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    • pp.367-371
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    • 2005
  • 선진 각국의 지상파 디지털 방송 기술 개발 동향을 파악하고 미국, 영국, 일본, 독일 호주 등 주요 국가별로 대표방송사를 선정하여 재무제표 자료를 토대로 투자 및 운영효율성에 대한 정량적 분석을 수행하고 DEA(Data Envelope Analysis)모형을 이용하여 각국의 경쟁력을 비교 분석한다. 분석 결과를 우리나라의 방송 3사(KBS, MBC, SBS)의 상황과 비교 분석함으로써 국내 디지털 지상파 방송이 경쟁력을 갖추기 위한 조건을 제시하고자 한다.

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Bootstrap Median Tests for Right Censored Data

  • Park, Hyo-Il;Na, Jong-Hwa
    • Journal of the Korean Statistical Society
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    • 제29권4호
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    • pp.423-433
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    • 2000
  • In this paper, we consider applying the bootstrap method to the median test procedures for right censored data. For doing this, we show that the median test statistics can be represented by the differences of two sampler medians. Then we review to the re-sampling methods for censored dta and propose the test procedures under the location translation assumption and Behrens-Fisher problem. Also we compare our procedures with other re-sampling method, which is so-called permutation test through an example. Finally we show the validity of bootstrap median test procedure in the appendix.

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모바일 클라이언트의 데이터 무결성 보장을 위한 보안모듈에 관한 연구 (A Study on the Security Module for Data Integrity of Mobile Client)

  • 주해종;홍봉화
    • 정보학연구
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    • 제10권3호
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    • pp.77-92
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    • 2007
  • This study aims to suggest an implementation methodology of security module for data integrity of mobile internet terminal. This is based on the WTLS(Wileless Transport Layer Security) of WAP Protocol. This security module is expected to achieve central role in conversion of wireless internet environment and emphasis of encryption technology and safe and calculable wireless communication environment construction.

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