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황준,이주연,이승민 서울여자대학교 자연과학연구소 1998 자연과학연구논문집 Vol.10 No.-
Abnormal motion control mechanism sometimes performs false detection of the direction, thus makes target point runs off the track, also shows abnormal speed control or power control. This paper explains development of the tools that make scientific measure and various analysis available. This paper also explams how we get the motion control ability data from the horizontal and vertical line drawn on the touch screen by the patient, analysis of deviation analysis, and Turn-Amplitude study. We built a complete system based on this algorithm.
A Design of Performance Management System in Heterogeneous Networks
황준,권혁인,Hwang, Jun,Kwon, Hyeog-In 한국정보처리학회 1995 정보처리논문지 Vol.2 No.2
분산된 정보 및 컴퓨터 자원들에 대한 접근 요구가 증대됨에 따라 네트워크 상호 연결도구 또한 커지고 있다. 네트워크 성능관리 도구들을 포함한 많은 네트워크 관리 패키지들이 이미 개발되었지만 이종 네트워크 환경에서는 그다지 적합하지 않다. 이종 네트워크의 성능을 효율적으로 감시하고 제어하기 위해서는 우선적으로 모든 성능 매개 변수를 정의해야 한다. 그리고 관리 시스템의 성능 분석 행위를 지원하기 위해서는 성능 분석 모델과 성능 판단 기준도 필요하다. 본 연구에서는 OSI 관리 체계 에 기반을 둔 이종 네트워크 환경에서 사용할 수 있는 중앙 집중식 성능 관리 시스템 을 설계하였다. As the needs for accessing distributed informations and computing resources are increasing the need for network interconnection is growing. There are many of the network management packages including performance management tools; but most of them are not appropriate to be used in heterogeneous interconnected networks. To monitor and to control efficiently the performance of heterogeneous network, first, we have to define all performance parameters in general meaning. We need models and criteria for supporting performance analysis activities of the management system. In this study, we have designed a centralized performance management system based on the OSI management, which can be used in heterogeneous networks.
황준,정의식 한국정밀공학회 2003 International Journal of Precision Engineering and Vol.4 No.1
This paper presents the experimental results to verify the environmental consciousness with economic balances due to cutting fluid behaviors and effectiveness in machining process. The cutting fluid improves the productivity through cooling, lubricating effects, however its environmental impact also increases according to the cutting fluid usage. The primary mechanism in this study is the spin-off motion of cutting fluids away from the rotating workpiece. In this study some machining parameters are adopted to analyze the productivity as well as environmental impact. This study provides the criteria for the resonable cutting fluid usage quantitatively to develop the environmentally conscious machining process.
황준 충주대학교 2006 한국교통대학교 논문집 Vol.41 No.-
This paper presents the results of miniaturized micro milling machine tool development for micro precision machining process. Finite element analysis has been performed to know the relationship between design dimensional variables and structural stiffness in terms of static, dynamic, thermal aspects. Design optimization has been performed to optimize the design variables of micro machine tool to minimize the volume, weight and deformation of machine tool structure and to maximize the stiffness in terms of static, dynamic, and thermal characteristics. This study presents the assessment of the technology incentive for the minimization of machine tool in the quantitative context of static, dynamic stiffness, thermal resistance and thus the accuracy implications. This study can also be provided a basic knowledge for further research of micro factory development.
황준 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
Today, manufacturing capability at the micro or nano scale production field is requested strongly in view of parts and product miniaturization. Miniaturized parts and products will introduce lots of benefits in terms of high precision functionality and low energy consumption. This paper presents the results of micro milling machine tool development for micro machining process. Finite element analysis has been performed to know the relationship between design dimensional variables and structural stiffness in terms of static, dynamic, thermal aspects. Performance evaluation through machining has been tested and discussed for achievable machining characteristics.
황준,정의식,Duk-Chul Hwang 한국정밀공학회 2005 International Journal of Precision Engineering and Vol.6 No.3
This paper presents the experimental results to verify the atomization characteristics and environmental impact of cutting fluid. Even though cutting fluid improves the productivity through the cooling and lubricating effects, environmental impact due to cutting fluid usage is also increased on factory shop floor. Cutting fluid's aerosol via atomization process can generate human health risk such as lung cancer and skin diseases. Experimental results show that the generated fine aerosol of which particle size less than 10 micron appears near working zone under typical operation conditions. The aerosol concentration also exceeds NIOSH regulations. This research can be provided as a basis of environmental impact analysis for environmental consciousness.