• 가정과삶의질연구
• /
• 제24권4호
• /
• pp.103-116
• /
• 2006

This study reviews trends of Japanese consumer policies, with particular attention to the situations of operating local consumer centers, in an effort to find ways to develop rapidly changing local consumer administration practices in Japan. Budget cut on consumer administration by the Japanese government has resulted in a reduction of consumer centers in Todohuken, while new consumer policy, which seeks greater consumer independence, has encouraged civil consumer groups' participation in consumer administration. In particular, entrustment of consumer centers to civil groups has increasingly stimulated more region-oriented local consumer policies and enhanced the efficiency of consumer administration. To activate local consumer administration, it seems necessary to provide assistance to entrusted civil groups, strengthen business regulations of Todohuken administration, and ensure more effective operation practices of civil consumer groups.

• ETRI Journal
• /
• 제6권3호
• /
• pp.17-20
• /
• 1984

A block replacement policy using items with different reliability is discussed. We devide system unit failure modes into two modes and use less reliable unit when operating unit fails near the planned preventive replacement time. In this policy, item A has two failure modes. Mode-1 failure is removed by minimal repair, mode-2 failure by replacement. If mode-2 failure of item A happens in (0,T- $\delta$). failure item A is replaced by new item A. If mode-2 failure of item A happens in(T-$\delta$,T), failure item A is replaced by new item B. Item B should be cheaper and less durable than item A. Under this policy, we determine the preventive replacement interval T and the interval $\delta$ of item B replacement which minimize the cost rate per unit time.

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2007년도 추계학술대회 논문집
• /
• pp.31-34
• /
• 2007

Fuel cell with high electric efficiency has many probabilities of commercial use. Especially, polymer electrolyte or proton exchange membrane fuel cell (PEMFC) which is a low operating temperature and has less influence on $CO_2$ concentration is considered the power generation system of small building and household. We calculated the optimal operational plans of 1 kW household PEMFC power system based on daily electric and heat demand patterns of various size of apartments. Calculated results show that the economic feasibility of PEMFC power system is very sensitive to the cost policy of electricity and natural gas.

• 보건행정학회지
• /
• 제8권1호
• /
• pp.203-230
• /
• 1998

This purposes of this study is to develope policies on the facilities for the elderly care in Korea. Methodology of this study adopts comparative analysis on the facilities for the elderly care in 6 countries which have experienced various problems on the elderly. These 6 countries are Japan, Sweden, America, Australian, England and Germany. Major issues for comparative analysis are the standard of care facilities, residence condition, finance of facilities establishment and expense, operating system, management, and the law and administrative structure about the facilities for the elderly care. The elderly people need various kinds of welfare services such as medical care facilities, nursing home facilities, home care facilities etc.. Thus the public policies for the aging population nations are compose of income maintenance program, health and medical care services and social welfare services. The policies of facilities for elderly care are very important since these policies include the characteristics of income maintenance, me\ulcorner미 care program and welfare program. This study willsupply basic data for the development of facilities for the elderly care in Korea, especially conceming the system and institutional device of the facilities.

• 한국시뮬레이션학회:학술대회논문집
• /
• 한국시뮬레이션학회 2003년도 춘계학술대회논문집
• /
• pp.129-134
• /
• 2003

In this paper, we determine optimal reduction in the lead time and setup cost for some stochastic inventory models. And we propose more general model that allow the backorder rate as a control variable. We first assume that the lead time demand follows a normal distribution. And we assume that the backorder rate is dependent on the length of lead time through the amount of shortages. The stochastic models analyzed in this paper are the classical continuous and periodic review policy models with a mixture of backorders and lost sales. For each of these models, we provide a sufficient conditions for the uniqueness of the optimal operating policy. We also develop algorithms for solving these models and provide illustrative numerical examples.

• 한국시뮬레이션학회:학술대회논문집
• /
• 한국시뮬레이션학회 1998년도 추계학술대회 및 정기총회
• /
• pp.36-40
• /
• 1998

Tool shop of the‘D’Motor Co.(DMC) fabricates dies for producing automotive press panels. In order to increase the production capacity of the tool shop, DMC established an FMS that consists of high-speed machines and a CMM at the tool shop in 1997. Due to the difference in machine capability among the existing machines and the new FMS it is needed to find an optimal way of allocating workloads among machines to maximize the production. In a way to solve this, we model the die fabrication process of the tool shop and analyze its performance by computer simulation. In this study, we at first identify the bottleneck processes of the die fabrication process under the current operation policy. Then, we derive some alternative operating policies applicable to the tool shop, and analyze the optimal operation policy by comparing the performance of the tool shop following each alternative policy.

• 한국시뮬레이션학회:학술대회논문집
• /
• 한국시뮬레이션학회 1999년도 춘계학술대회 논문집
• /
• pp.105-109
• /
• 1999

Tool shop of the D Heavy Industries Co.(DHI) fabricates engines for a bus, truck, small ship. In order to increase the production capacity of engines, DHI will be established the new tool shop that consists of a block line, head line, assembly line, test line and AS/RS in 1999. In order to assure the production capacity designed of the new tool shop for producing engines and improve the production process of it, it is needed to find a bottleneck process and an optimal way of allocating workloads among machines and workers to maximize the production. In a way to solve this, we model the engine fabrication process of the tool shop and analyze its performance by computer simulation. In this study, we at first identify the bottleneck processes of the engine fabrication process under the designed operation policy. Then, we derive some alternative operating policies applicable to the new tool shop of an engine, and analyze the optimal operation policy by comparing the performance of the tool shop following each alternative policy.

• 한국정보통신설비학회:학술대회논문집
• /
• 한국정보통신설비학회 2008년도 정보통신설비 학술대회
• /
• pp.364-367
• /
• 2008

Many different types of network equipments are deployed in a large-scale IP network. In this operating environment, network service providers suffer from difficulty in controlling various equipments simultaneously in case network faults happen in their overall or regional network due to physical link failure or abnormal traffic. This paper presents a policy-based methodology to control many different types of network equipments at the same time in abnormal cases. The key idea is that NMS(Network Management System) keeps vendor-neutral control policies in normal times and that when an abnormal case occurs in network, NMS transforms the selected policy into vendor-specific control commands and enforces them to various equipments simultaneously.

• 품질경영학회지
• /
• 제35권1호
• /
• pp.52-60
• /
• 2007

The purpose of this study is to explorer some strategies for implementing successfully the qualify management for public policy (PPQM) in local government. Researchers for reaching at the purpose reviewed a literature on QM (or TQM) and PPQM in chapter II and suggested implementing strategies of local government's PPQM in chapter III. Implement strategies of local government's PPQM have to build a framework, establish an operating system, develop a customized PPQM's manual, and develop a capacity of local government's civil servant for implementing the PPQM and then build an evaluating system on the result of the PPQM's implementation in local government.

• 한국신뢰성학회지:신뢰성응용연구
• /
• 제17권4호
• /
• pp.316-324
• /
• 2017

Purpose: The purpose of this study is to determine the replacement cycle applied age replacement policy by reliability analysis based on railway vehicle contactor's failure history data. Method: We performed reliability analysis based on railway vehicle contactor's failure history data. We found a suitable distribution by goodness of fit test and predicted the reliability through estimation of scale & shape parameter. Considering cost information we determined the replacement cycle that minimize the opportunity cost. Result: Suitable distribution was the Weibull and scale parameter & shape parameter are estimated by reliability analysis. The replacement cycle was predicted and MTTF, $B_6$ percentile life were suggested additionally. Conclusion: We confirmed that failure rate type of railway vehicle contactor is degradation model having a time dependent characteristic and examined the replacement cycle in our country's operating environment. We expect that this study result contribute to railway operation agency for maintenance policy decision.