• Title/Summary/Keyword: 윤중현

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A Study on Influence Factors to the Information Resources Utilization and Usage (정보자원 활용도 영향요인들에 관한 연구)

  • 윤중현
    • Journal of the Korean Society for information Management
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    • v.19 no.2
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    • pp.31-48
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    • 2002
  • The purpose of this study is to identify how to construct roles and services appling advanced information resources management to improve usage and utilization in corporation that is affected by changing information and competition environment. This study presents the relationship between certain individual variables and information management variables and the usage and utilization of the information resources appling advanced information resources management. For future research, information resource's utilization and quality of usage are suggested.

The Characteristic and Formation of Ti(B,N) Films on Steel by EA Hot Filament CVD (EA hot filament CVD system을 이용하여 금형공구강에 증착한 Ti(B,N)박막의 합성과 특성에 관하여)

  • Yoon, Jung-H.;Choi, Yong;Choe, Jean-I.
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.4
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    • pp.585-589
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    • 2012
  • The characteristics of interface layer and the effect of mole fraction of inlet gas mixture($B_2H_6/H_2/N_2/TiCl_4$) on the microstructure of Ti(B,N) films were studied by microwave plasma hot filament CVD process. Ti(B,N) films were deposited on a substrate(STD-61) to develop a high performance of resistance wear coating tool. Ti(B,N) films were obtained at a gas pressure of 1 torr, bias voltage of 300 V and substrate temperature of $480^{\circ}C$ in $B_2H_6/H_2/N_2/TiCl_4$gas system. It was found that TiN, $TiB_2$, TiB and hexagonal boron nitride(h-BN) phases exist in thin layer on the STD-61.

An Empirical Study on the Information Search Effort by Information Ambiguity Effects (정보의 모호성이 정보탐색 노력에 미치는 영향요인에 관한 연구)

  • Yoon, Jung-Hyeon
    • Journal of the Korean Society for information Management
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    • v.20 no.3
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    • pp.17-30
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    • 2003
  • The purpose of this study is to identify the relationships among information search activities, of which perceived risk, cognitive dissonance, and involvement play a role. A survey of 155 students who have a recent experience on information search activities. Total six hypotheses the research already reported on information search effort, thereby giving decision maker a richer understanding of information search behavior.

The Effects of Information System Architecture and Organization Structure on the Use of e-Business in Korean Companies (정보시스템 기술 및 관리구조가 e-비즈니스 활용정도에 미치는 영향에 관한 연구)

  • 윤중현
    • Journal of Information Technology Applications and Management
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    • v.10 no.2
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    • pp.1-18
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    • 2003
  • Recently, e-business has very much attention in the management fields because it is expected to fundamentally change the way many business compete. Business that don't understand the changes and that can't change their operating model in time will be at a disadvantage. Information technology infrastructure and its management are key components of e-business The purpose of this study was to investigate the effects of information technology infrastructure and its management to the type of information systems used and the use of e-business. A total of 56 Korean firms responded to the survey instrument. There was indirect effect to the use of e-business from the information technology structure via communication capacity and direct effect from management type. The study also found that firms with less centralized forms of information technology were more frequent users of e-business, Firms that have more freedom in information technology decision making tended to be users of the new technology and take advantage opportunities that exits on the information technology.

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The Measurement of Exothermic Temperature During Polymerization of Various Direct Resins. (각종 치과용 다이렉트 레진의 중합 반응시 열 측정)

  • Yun, Joung-Hyun
    • The Journal of the Korean dental association
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    • v.11 no.1
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    • pp.37-40
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    • 1973
  • The auther measured exothermic tempreature of the 5 kinds of direct resins during polymerization. Direct resins were mixed into the rubber cup(550-600㎣ in volume) with grass rod at room temperature (23.6℃) for 30 seconds and thermometer was placed approximately at the geometric center of the resin mass in the rubber cup. Polymer-monomer ratio was determined by instruction of the packages. The results were as follows. 1) The heat generated during polymerization was under 47.3℃. 2) The time at which the highest temperature is reached during polymerization was within 20.5 minutes. 3) Slow curing resins produced lower heat than quick curing resins and quick curing resins presented higher temperature than slow curing resins. 4) The highest temperature was sustained momentarily.

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An Analysis on the Affects of Friction Material and Force of Manual Transmission Synchronizer Ring (수동 변속기용 동기기구의 마찰력과 마찰재의 영향 분석)

  • Cho Yong-Ee;Yoon Jung-Hyun;You Kwang-Suk
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.15 no.2
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    • pp.44-50
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    • 2006
  • A driver's feelings of transmission serve as a basis to judge not only the transmission but also the entire automobile that he or she drives. The importance of transmission feelings is increasing daily because of driver's desire for increased torque and other improved functions. In order to accommodate such desire of drivers, new friction materials have been developed. The study in this report compared the affects of such materials and the force for transmission theoretically and empirically. By doing so, the study attempted to establish basic references for computation of capacity and other factors to be determined at the time of design of synchronizer system.

Electrical Characteristics of the PIP Antifuse for Configuration of the Programmable Logic Circuit (프로그램 가능한 논리 회로 구성을 위한 PIP 앤티퓨즈의 전기적 특성)

  • 김필중;윤중현;김종빈
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.12
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    • pp.953-958
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    • 2001
  • The antifuse is a semi-permanent memory device like a ROM which shows the open or short state, and a switch device connecting logic blocks selectively in FPGA. In addition, the antifuse has been used as a logic device to troubleshoot defective memory cells arising from SDRAM processing. In this study, we have fabricated ONO antifuses consisted of PIP structure. The antifuse shows a high resistance more than several G Ω in the normal state, and shows a low resistance less than 500 Ω after program. The program resistance variation according to temperature shows the very stable value of $\pm$20 Ω. At this time, its program voltage shows 6.7∼7.2 V and the program is performed within 1 second. Therefore this result shows that the PIP antifuse is a very stable and programmable logic device.

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