• Title/Summary/Keyword: productivity changes

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웹을 기반으로 하는 자동화 방법에 관한 연구

  • Park Jong Rak;Jeong Won;Park Gwan Hui
    • Proceedings of the Korea Association of Information Systems Conference
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    • 2003.05a
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    • pp.45-54
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    • 2003
  • Over the past decade, the unprecedented internet revolution has dramatically altered many core aspects of out daily business and personal lives. Many of these fundamental changes have completely transformed traditional communication mechanism, boosted productivity, opened up new marketing opportunities, and given birth to entirely new applications in the world of eCommerce and eBusiness. But Many web applications doesn't connect with real-world device such as lights, pumps, and Motors avaiable over the Internet. In this paper We introduce XML and presents way it can be used with I/O system.

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Adaptive Control of Cell Recycled Continuous Bioreactor for Ethanol Production (에탄올 생산을 위한 세포재순환 연속 생물반응기의 적응제어)

  • 이재우;유영제
    • KSBB Journal
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    • v.6 no.3
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    • pp.263-270
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    • 1991
  • The optimal cell concentration and dilution rate for maximum ethanol productivity were obtained using dynamic simulation in cell recycled continuous bioreactor. The good control performance was observed using rule-based STR (self-tuning regulator) compared to conventional STR. Rule-base contained the scheme to implement the STR in an efficient on-off way and the scheme for the controlled variable to reach the optimal value in a short time. Since a mathematical model was used to analyze and estimate the changes of the state variables and the parameters, it was possible to understand the physical meaning of the system.

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Control and Aggregation (I)

  • Han, Sung-Shin
    • Journal of the Korean Statistical Society
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    • v.8 no.2
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    • pp.139-163
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    • 1979
  • Utilization of the aggregation concept applied in economics has been a traditional way of describing the state of an economic system and of predicting the future economic conditions. In addition, certain aggregate variables have also played a crucial role as indicators of the business cycle. Quick examples would be the price index, the productivity changes, the industrial production index, GNP, and so on. The methods of aggregation could be either simple summations, like GNP, or sophisticated weighted average, like the price index.

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A Study on the Production Management Concept for Productivity Improvement (생산성 향상을 위한 생산관리 개념의 변화)

  • 정일구
    • Journal of the Korean Professional Engineers Association
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    • v.32 no.6
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    • pp.35-39
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    • 1999
  • Many tools in classical type for the production management have been used in industrial cells. In spite of their powerful logic and historical success, many appliers could not take but a little effectiveness in current economic conditions. The major reason is that the chronical production control methods are too narrow in its applicability to cover the problems occurred under such a high-speed changes. Therefore we need to develop the new concept of production management for the higher adaptability and outcome which can support vitablities to enterprises in severe condition. The essential points in changing the viewpoint of new production management concepts are valuable to the group of new management.

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Present Situation and Propulsion Strategy of Factory Automation in Manufacturing Company (제조기업의 공장자동화 현황과 추진전략에 관한 연구)

  • 이덕수;박노국;송문익
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.18 no.36
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    • pp.233-241
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    • 1995
  • Many companies worldwide today are pursuing to make diversified and highly qualified products. Factory automation aims at maximizing profits through the lessened inventory and shortened delivery time, which will enable the company to become more responsive to market changes. This research analyzes the following feartures in the process of factory automation. first, the automation level according to the company class. second, productivity according to the automation level. third, the organization menber's interest in the automation. finally, the possible problems in factory automation.

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Case studies for productivity enhancement on cold forging (냉간단조 생산성 향상 사례)

  • Choi, S.T.;Lee, I.H.;Kwon, Y.C.;Lee, J.H.;Lee, C.M.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2007.05a
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    • pp.42-47
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    • 2007
  • The characteristics of the tool system give many effects into the costs and qualities for the finished components. Therefore, a tool life is one of the important issues on cold forging industry. However, since variables related with tool life are many complicated, the studies for solution should be investigated by the systematic research approach. The shape and process changes of die, the hardness changes of material and the tolerance of dies to decrease the die stress are analyzed by the FEM software. The heat-treatment of tool material is investigated to improve the tool life. Deep cryogenic treatment of tool steel is very efficient to improve the wear resistance due to the fine carbide. And, it is investigated that the shape and dimension of tool give effect into both tool life and quality of forged product..

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e-Learning Education System on Web

  • Choi, Sung;Han, Jung-Lan;Chung, Ji-Moon
    • 한국디지털정책학회:학술대회논문집
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    • 2004.11a
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    • pp.283-294
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    • 2004
  • Within the rapidly changing environment of global economics, the environment of higher education in the universities & companies, also, has been, encountering various changes. Popularization on higher education related to lifetime education system, putting emphasis on the productivity of education services and the acquisition of competitiveness through the market of open education, the breakdown of the ivory tower and the Multiversitization of universities & companies, importance of obtaining information in the universities & companies, and cooperation between domestic and oversea universities, industry and educational system must be acquired. Therefore, in order to adequately cope with these kinds of rapid changes in the education environment, operating E-Learning Education & company by utilizing various information technologies and its fixations such as Internet, E-mail. CD-ROMs. Interactive Video Networks (Video Conferencing, Video on Demand), CableTV etc., which has no time or location limitation, is needed.

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An Empirical Study on the Effect and Operation of QMS (중소기업의 QMS 운영과 효과에 관한 실증적 연구)

  • Lee, Deok-Soo
    • Journal of Korean Society for Quality Management
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    • v.38 no.1
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    • pp.101-107
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    • 2010
  • In 2008, a review was made to analyze the effect of the certification of ISO 9001 quality management system in the almost same methods used for a similar review in 2001. Based on the two reviews, this research is to compare and contrast the changes made in between. The results show that the overall satisfaction for the certification has increased over 7 years, along with other beneficial changes, such as decreased cost and increased productivity. However, there has been no significant change in the establishment of the quality management system and in the level of customer satisfaction. ISO 9001 quality management system construction appears which effects variously on the all enterprises management, therefore this is very important strategy for preparing the keen enterprises competition.

A Qualitative Study of Childrearing by Grandmothers in Dual-Earner Families (맞벌이 자녀를 둔 할머니의 손자녀 양육 지원 양태(樣態)와 그에 따른 삶의 변화에 관한 질적 연구)

  • An, Heelan;Kim, Seonmi
    • Journal of Family Resource Management and Policy Review
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    • v.18 no.3
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    • pp.1-20
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    • 2014
  • This study explores the grandchild-rearing experience of grandmothers whose children are part of dual-earner couples. Twelve participants provided in-depth interview data that were analysed according to Spradely's ethnographic method. We present three main themes in our research, as well as ten smaller themes: (i) the grandchild-rearing motive (from the perspective of the adult, the child, the grandchild, and the grandmother); (ii) the mode of grandchild-rearing support (residential, total weight of childrearing support, availability of a daycare center); (iii) the change in the grandmother's way of life (positive changes and negative changes). Finally, this study examines the integrity of the grandmother's identity as their productivity increases through providing grandchild-rearing support. It also looks at the importance of governmental policies that support their burdens according to the level support they provide.