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이희춘 尙志大學校 生産技術硏究所 1997 生産技術論叢 Vol.3 No.-
The usal practice in using a control chart to monitor a process is to take samples of size n from the process every h hours, this article considers the properties of the double sampling ?? chartc when of each sampl depends on what is observed in the proceeding sample. This procedure offer better than statistical efficiency than the Shewhart ?? chart.
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이춘식,문덕희,김상부 國立 昌原大學校 産業技術硏究所 1997 産技硏論文集 Vol.11 No.-
The need for reliable products and reliability analysis became apparent in the age of customer satisfaction. To make products most attractive, first of all, customer complaints on current products must be gathered and analyzed. This article shows a case on the development of a reliability analysis system based on field data. Field data takes the form of A/S(After Sales Support) data. The characteristics of A/S data prohibit the exact calculation of theoretical reliability because of unavailibility of operating time and conditions. In this system, a reliability model was built by use of calendar time and field operating conditions. To estimate the reliability of products or failure modes, empirical distributions based on actuarial method were used and true distribution function could be fitted. And many functions needed to analyse reliability related data were implemented on personal computer via system analysis and design techniques.
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李春熙 服飾文化學會 2000 服飾文化硏究 Vol.8 No.4
The purpose of this study is to semiotically reinterpret the Korean beauty and symbol inhering in the modern clothing of Korean designers as the context of traditional culture through regarding the clothing including hegemony that is controlling the Korean society and culture as a sign. The theoretical framework for analysis was derived from the semiotically analytic methods of F. Saussure and R. Barthes. The results of the study are as fallows; Korean images reflected in the modern clothing designed by Korean designers are humanistic image, environmental-friendly image, totemic and mythological image, equal and peaceful image, and metaphorical and metonymical image. Conclusively, developing a creative design based upon the interpretation of our unique and traditional culture, the clothing could be newly made of historical and cultural resources in the modern lives. If so, I think that the clothing will be not only the visual and decorative art but also an information which contains implication of our culture, and finally can be established.
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ICT를 활용한 구성주의적 수업이 과학개념 획득과 문제해결에 미치는 효과
이춘희,정원우,김중욱,이윤종 慶北大學校 科學敎育硏究所 2004 科學敎育硏究誌 Vol.28 No.-
The purpose of this study is to examine in details the effects of the constructive instruction on the acquisition of scientific conceptions and the problem solving of Science based on ICT (Information and Communication Technology). In this study, An examination tool developed for a previous learning concept was applied to instructional model by a constructivism to students, and by grasping a previous learning concept and using ICT. An way of the improvement about acquisition of scientific conceptions and problem solving of subject was inspected, the rate of a correct answer, the decrease rate of misconception, and the achievement rate of a periodical examination were compared. The result of such enforcement was as follows; The motivational induction for learning, the interesting rate, and the rate of a correct answer in an experimental group showed highly. The result of a examination between an experimental group and a comparative group showed similarly. The rate of accomplishment also showed highly in an experimental group. Accordingly, the constructive instruction using ICT proved to be fit for seventh educational course as a student-centered course. The change of recompositional course for knowledge from a previous learning concept to a new one showed clearly.
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李春熙 한국문헌정보학회 1995 한국문헌정보학회지 Vol.29 No.-
The purpose of this study is to investigate the general characteristics of modern library which was in a germinal stage at the opening period of Korea. The major findings of this study is summarized as follows. (1) Modern libraries which began to develop during the opening period of Korea were deeply rooted in the spirit of patriotism. After 1905, which was the year of so-called Korean-Japanese Protocal concluded under the Japanese military pressure, the patriotic enlightenment campaign against foreign penetration developed rapidly throughout the country. Accordingly, the movement for establishing modern library was carried out among advanced reformers. (2) The first modern school library was built in the private school of Wonsan established by the residents of Wonsan area. They believed that the best way to strengthen the national power to oppose Japanese penetration was to learn the Western culture and technology. (3) The first modern public library named The Central Library of Korea was originated by Oh Ha Young and his comrade in 1906. Included among these promoters of the library were Yun Chi Ho and Min Sang Ho, two persons who had experienced Western culture during their study abroad. (4) Pakmunkuk, the newspaper office of the government, had its own library in 1883 which was the first modernized special library in Korea. (5) Major factors which hindered the rapid growth modern libraries in the opening period are as follows; ① Lack of people's demand for the library. ② Limited scope of the publications(mainly school text-books) ③Poor financial conditions. (6) Japanese invasion in 1910 had broken the growing roots of modern libraries in formative stage
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Aggregate Packet Process having Pareto distribution as Source
이희춘,김주목 尙志大學校 生産技術硏究所 1998 生産技術論叢 Vol.6 No.-
독립적이며 같은 분포를 갖는 ON/OFF source를 갖는 패킷을 고려하자. ON/OFF source가 무한한 분산을 갖는 파레토분포일 때, 누적 패킷확률과정이 브라운 운동 ??와 경과된 시간 t에 대한 일차 결합 ???(t) 으로 표현된다. 이 때, 파레토 분포의 평균과 자체-유사 계수 H 에 의존되며 정하여지는 상수 a, b를 구하였다.
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CONVERGENT THEOREM FOR FUZZY MAPPING
이희춘,김주목 尙志大學校 生産技術硏究所 1998 生産技術論叢 Vol.6 No.-
퍼지 확률변수의 개념과 그의 기대값을 정의함으로써, 퍼지사상의 수준집합의 성질과 응용성을 연구하였다. 또한, 어떤 조건하에서의 퍼지사상에 대한 수렴정리를 증명하였다.
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李春熙 韓國圖書館學會 1978 圖書館學 Vol.5 No.1
The libraries of the various learning institutes in the Yi Dynasty may be categorized into types: 1)The Hyang-Gyo library(the public school libraries in rural districts) 2)The Sabu-Hankdang library(the public school libraries in the Capital) 3)The Sowon library(the libraries of private learning institutes) 4)The Jyon-Gyong-Gak library(the library of the Sung Kyun Kwan which was the highest learning institute in the Yi Dynasty) For the historical study of Korean libraries as well as its education and culture the Hyang-Gyo libraries hold an very important position, but undeservedly its study has been neglected. In this paper, the writer made an effort to grasp the various function of the Hyang-gyo libraries with its historical background
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