• 제목/요약/키워드: planned change

검색결과 450건 처리시간 0.024초

Simulation of Efficient FlowControl for Photolithography Process Manufacturing of Semiconductor

  • Han, Young-Shin;Lee, Chilgee
    • 한국시뮬레이션학회:학술대회논문집
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    • 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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    • pp.269-273
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    • 2001
  • Semiconductor wafer fabrication is a business of high capital investment and fast changing nature. To be competitive, the production in a fab needs to be effectively planned and scheduled starting from the ramping up phase, so that the business goals such as on-time delivery, high output volume and effective use of capital intensive equipment can be achieved. In this paper, we propose Stand Alone layout and In-Line layout are analyzed and compared while varying number of device variable changes. The comparison is performed through simulation using ProSys; a window 98 based discrete system simulation software, as a tool for comparing performance of two proposed layouts. The comparison demonstrates that when the number of device variable change is small, In-Line layout is more efficient in terms of production quantity. However, as the number of device variable change is more than 14 titles, Stand Alone layout prevails over In-Line layout.

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현대 라이프스타일의 변화에 따른 주상복합건물 주호에서의 식생활 공간에 관한 연구 (A Study on Dining and Kitchen Space in Unit of Complex Buildings Regarding the Change of Life Style)

  • 김지우;유성은;하미경
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2004년도 추계학술대회 논문집
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    • pp.55-60
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    • 2004
  • Regarding the change of life-style, dining and kitchen space has been considered to be more important than before in many ways. At this point of time, it is very significant to understand the trend of the recently planned dining and kitchen space. Thus the purpose of this study is to analyze the dining and kitchen space in the unit of the complex buildings. It is believed that the accumulated data will be the basic information to develop more efficient and convenient dining and kitchen space in future.

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이족 보행 로봇의 궤적의 최적화 계획에 관한 연구 (A Study on the Trajectory Optimization Planning of Biped Walking Machine)

  • 김창부;조현석
    • 한국정밀공학회지
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    • 제15권3호
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    • pp.157-167
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    • 1998
  • In this paper it is purpose that reduces joint torques and their rate of change through optimizing trajectory planning of biped walking machine. The motion of biped walking machine is divided into leg motion for walking and body motion for keeping balance. The leg motion is planned by three phases, that are deploy, swing, and place phases, in terms of the state of foot against floor. The distribution of time assigned to each phase is optimized and that causes leg joint torques and their rate of change to minimize. The body notion is produced by using optimal control theory which minimizes body joint torques and satisfies Z.M.P. constraints defined as region of each phase.

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건강증진시대의 보건교육 (Health Education in the Era of Health Promotion)

  • 박형종;김공현
    • 보건교육건강증진학회지
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    • 제8권2호
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    • pp.1-5
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    • 1991
  • Definition of health education can be various depending on historical background and individual point of view. In the industrialized era when health promotion is given a high priority in health activities, health education could be defined as a combination of planned learning experiences and social actions, which expand health knowledge and experiences of individuals and communities in order to meet their health needs, change harmful health behaviors to be desirable for health promotion and motivate them to do that. To realize the proposed definition of health education, health education should develop new policies in harmony with health promotion, facilitate the development of human resources, reflect the modern educational technology, strengthen multisectoral approach, and pay more attention to monitoring and evaluation. To fulfill the above mentioned role, health education approach should shift foci from diseases to health orientation, from individualistic health behavior modification to a systematic change of the general public, from medical domination to recognition of lay competence and from authoritarian health education to supportive health education.

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Stages of Change in Reducing Fast Food Consumption, Health Behaviors, Psychosocial Factors and Nutrient Intakes of University Students in Daejeon

  • Kim Kyung Won;Ahn Yun;Moon Eun Hye;Shin Eun Mi
    • Journal of Community Nutrition
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    • 제7권1호
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    • pp.8-20
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    • 2005
  • The study purpose was to examine which factors including health perceptions & behaviors, psychosocial factors, dietary intakes were different by stages of change to reduce fast food consumption among university students. Survey data(n = 341) were analyzed using X$^2$ test or analysis of variance. With respect to stages of change, $17\%$ were in the precontemplation ; $21.4\%$ for contemplation, $19.7\%$ for preparation, 11.7% for action, and $30.2\%$ for the maintenance stage. Frequency of fast food consumption (p < 0.001), health status, interest toward health, and exercising behavior (p < 0.05) differed significantly by stages of change. Demographics and nutrient intakes, however, had no association with stages of change. Those in precontemplation through preparation stages felt more strongly on the advantages such as taste, satiety, cleanness of restaurants (p < 0.001), and diverse menus (p < 0.05). Compared to maintainers or actors, pre-contemplators agreed less to the disadvantages of eating fast foods, including sanitary problems (p < 0.001), overeating, indigestion, decreased vegetable intakes (p < 0.01) and loss of freshness (p < 0.05). Influence of significant others (e.g., friends, siblings, parents) significantly differed by stages of change. Compared with maintainers, those in preaction stages felt less control over facilitators or situations for fast food consumption. These included 'others like fast foods', 'providing standard meals', 'when I don't have foods for meals'(p < 0.001), availability, advertisement, 'socially popular', 'when I feel hungry'(p < 0.01), and 'when I don't like to prepare meals' (p < 0.05). These results suggested that nutrition education be planned considering one's stages of change for fast food consumption. For those in preaction stages, it is desirable to use motivational strategies to increase benefits and remove barriers of change, and help to develop skills to deal with situations or factors for fast food consumption. The support from friends or families is also needed to move to further stages.

임대주택단지 주차공간확충 방안 연구 (A Study on Expansion for the Parking Space of Rental Housing Complexes)

  • 송승현;이민석
    • 한국주거학회논문집
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    • 제24권2호
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    • pp.35-44
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    • 2013
  • The purpose of this study is just for parking shall identify the status of the lack of rental apartments to relieve parking shortages. Next performed, and subsequent utilization of space just outside the parking space expansion plan is to present an alternative. Analysis of the study only 30 of the direction of the plan and set standards according to the nature of each complex. Planned urban planning aspects and architectural aspects of a parking space that can expand and classify the types of features will be discussed. Suggestions on how to take advantage of the parking space that can expand only in state owned lands in the urban planning aspects. The Architectural Planning of the side lot line change in the space and change the use of the Common Service Facilities or just to change the internal road system, by changing the way of parking, secure parking space. This way of working to improve the environment of the complex, at least. Actually just the space of improvement to be made with the opinion of the residents and the surrounding areas of the business association, must be preceded by a feasibility study.

Factors Affecting the Intention of the Rice Farmers to Adopt the Integrated Cash Waqf Environmental Protection Model: An Empirical Study in Kedah Malaysia

  • AFROZ, Rafia;MUHIBBULLAH, Md.;MORSHED, Mohammed Niaz
    • The Journal of Asian Finance, Economics and Business
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    • 제6권4호
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    • pp.189-199
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    • 2019
  • The objectives of this study are to propose the Integrated Waqf Environmental Protection Model (IWEP) and investigate the farmers' intention to adopt it. In developing the IWEP model and investigating farmers' willingness to adopt it, this study surveyed 400 farmers in Kedah. The intention of the farmers to adopt the proposed model was analysed by adding perceived barriers and socio-economic variables into the theory of reasoned action (TRA) model. The collected data were processed using structural equation modelling (SEM). The SEM results show that the subjective norm is positive and has a significant impact on the intentions of low-income farmers to accept the IWEP model. This indicates that the decision of the low-income farmers to accept the IWEP model is significantly influenced by their family members, neighbours and friends. Furthermore, awareness and perceived barriers have a greater impact on the elderly, highly educated and wealthy farmers. The findings indicate that the elderly, highly educated and wealthy farmers are aware of climate change and they perceive higher risks or barriers to climate change. As a result, they are more likely to have an adaptation intention. If we encourage people to create waqf fund, we can increase the value of the farmer and the country's total GDP.

댐 건설 기간 수위변화가 하반림 일대 습지 식생에 미치는 영향 -한탄강댐을 사례로- (Effects of Water Level Change on Wetland Vegetation in the Area of Riparian Forest for Dam Construction Period -Focused on the Hantan River Dam-)

  • 박현철;이정환;이관규
    • Journal of Forest and Environmental Science
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    • 제30권1호
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    • pp.76-84
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    • 2014
  • This study was performed to monitor the effects of water level change on changes of landscape, vegetation community, and species diversity of riparian forest. Hantan river dam, study area, has been constructed in the area of Chansoo-myeon, Pocheon-si and Yeoncheon-eup, Yeoncheon-gun, Gyeonggi-do, which is a dam for flood control only in flooding season. Landscape changes were notable after the construction of coffer dam, and the changes were caused by water level increase in areas of riparian forests which consisted of mainly withered willow as a dominant species in the flooding season. It changed vegetation communities of riparian forest from Phragmites japonica and Salix koreensis to Phragmites japonica. Species diversity index was lowest in 2010 when the coffer dam was constructed and showed an increasing trend later. Thus, this study is well in agreement with a previous report that plants of the genus Salix wither by muddy water during flooding and also suggests, controlling water level of river and prediction of water level change's effects should be considered when any facilities are planned.

조석이 큰 해역에서의 해안과정과 항만퇴적의 변화 (Variation of Beach Processes and Harbor Sedimentation in an Area of Large Tide)

  • 신승호;이중우
    • 한국항만학회지
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    • 제15권1호
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    • pp.57-74
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    • 2001
  • In the past, the predictions of beach processes and harbor sedimentation were mainly relied on the hydraulic model tests and empirical methods. In recent years, however, as computers have come into wide use, more accurate models have gradually been developed and thus replaced those conventional methods. For prediction of topographical change near the coastal area, we need informations of wave and current conditions in the numerical model which should be calculated in advance. Numerical model introduced in this study combines wave refraction-diffraction, breaking, bottom friction, lateral mixing, and critical shear stress and three sub-models for simulating waves, currents, and bottom change were briefly discussed. Simulations of beach processes and harbor sedimentation were also described at the coast neighboring Bangpo Harbor, Anmyundo, Chungnam, where the area has suffered accumulation of drifting sand in a small fishing harbor with a wide tidal range. We also made model test for the new layout of the harbor and planned south breakwater for preventing intrusion of sand. Although the model study gave reasonable description of beach processes and harbor sedimentation mechanism, it is necessary to collect lots of field observation data, including waves, tides and bottom materials, etc. for better prediction.

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Low Impact Urban Development For Climate Change and Natural Disaster Prevention

  • Lee, Jung-Min;Jin, Kyu-Nam;Sim, Young-Jong;Kim, Hyo-Jin
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.54-55
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    • 2015
  • Increase of impervious areas due to expansion of housing area, commercial and business building of urban is resulting in property change of stormwater runoff. Also, rapid urbanization and heavy rain due to climate change lead to urban flood and debris flow damage. In 2010 and 2011, Seoul had experienced shocking flooding damages by heavy rain. All these have led to increased interest in applying LID and decentralized rainwater management as a means of urban hydrologic cycle restoration and Natural Disaster Prevention such as flooding and so on. Urban development is a cause of expansion of impervious area. It reduces infiltration of rain water and may increase runoff volume from storms. Low Impact Development (LID) methods is to mimic the predevelopment site hydrology by using site design techniques that store, infiltrate, evaporate, detain runoff, and reduction flooding. Use of these techniques helps to reduce off-site runoff and ensure adequate groundwater recharge. The contents of this paper include a hydrologic analysis on a site and an evaluation of flooding reduction effect of LID practice facilities planned on the site. The region of this Case study is LID Rainwater Management Demonstration District in A-new town and P-new town, Korea. LID Practice facilities were designed on the area of rainwater management demonstration district in new town. We performed analysis of reduction effect about flood discharge. SWMM5 has been developed as a model to analyze the hydrologic impacts of LID facilities. For this study, we used weather data for around 38 years from January 1973 to August 2014 collected from the new town City Observatory near the district. Using the weather data, we performed continuous simulation of urban runoff in order to analyze impacts on the Stream from the development of the district and the installation of LID facilities. This is a new approach to stormwater management system which is different from existing end-of-pipe type management system. We suggest that LID should be discussed as a efficient method of urban disasters and climate change control in future land use, sewer and stormwater management planning.

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