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조주현,전길남 한국정보과학회 1983 한국정보과학회 학술발표논문집 Vol.10 No.2
UNIX system간의 file transfer 및 remote command execution 의 기능을 갖는 4.1BSD UUCP를 SDN 의 몇 개의 node 에 설치, dial-up 기능의 보완 및 극의 computer network 와의 연결, 그리고 application layer로서의 UUCP-based network 들에 관해 기술하였다. We discuss the newly found problems which occurred in the installation of 4.1 BSD UUCP, which has the functions of file transfer and remote command execution, in some nodes of SDN. We also describe the addition of dial-up function, international connection, and UUCP-based networks as application layer.
曺周鉉 建國大學校 社會科學硏究所 1996 社會科學論叢 Vol.1 No.-
The major purpose of this paper is to introduce theories of location and allocation of retail stores in relation to the consumer behavior of store choice. These theories are then applied to various situations of store location. Also, current status of art in estimation of trade area in Korea is presented and analyzed in relation to the advanced theories and techniques. Finally, public regulaions on store location in apartment complexes are critically reviewed. In the theoretical part, we formally specifies the relationship between shopping frequency and hierarchy of goods and stores. This theory can explain most of the competition and location among retail stores. However, this classical theory can not explain the joint purchase behavior nd location of shopping centers. Shopping center attraction model may be an alternative for this situation if certain parameter values are given. On the technical side, three approaches can be adopted depending on the type of stores: Spatial Monopoly, Market Penetration, and Dispersed Market Approach. As the variation of costs and required expertise is wide even in one approach, great care should be given when we apply those techniques in estimation. In the empirical study, we found that many studies in Korea are misusing and/or abusing the techniques and unit data developed in advanced countries. Also found is the underutilization of existing studies that show whole spectrum of variation of market data in Korea. Current regulations on retail locations are also truned out to be irrelevant in view of the structural changes in retail market.
조주현 建國大學校 社會科學硏究所 1998 社會科學論叢 Vol.3 No.-
The major purpose of this paper is to measure the magnitude and significance of the impact of housing density on housing price. In order to pursue this objective, we employ hedonic model using Seoul apartment data. Through regression analysis, we found following facts: 1)Housing density represented by floor area ratio has a significant impact on reduction in housing price. 2)This trend becomes stronger year after year. 3)However, during those years of 1990 and 1992, this trend is less persuasive. 4)The causes of this weak relationship in these years might be downturn of overall housing market and the changes in regulations on housing density, which in turn, lower the level of expectation in capital gains on housing.
전해 인프로세스 드레싱을 이용한 Optical glass계의 경면연삭에 관한 연구
조주현,원종호,박원규,이진오,김민수,김성수 한국공작기계학회 2003 한국공작기계학회 춘계학술대회논문집 Vol.2003 No.-
Electrolytic In-process Dressing (ELID) technique for metal bonded diamond grinding wheel has been developed for mirror surface grinding of hard and brittle materials. This study process optical glass in using Electrolytic In-process Dressing. In using to main variable wheel speed(400 rpm ~ 2000 rpm), feed rate(5 μm/min ~ 25 μm/min), depth of cut (3 μm - 15 μm), dressing and spray. we measured surface roughness by Form Talysurf series2. we finded optimum grinding condition to obtain confident surface roughness in representative brittle materials.