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        검색결과 249

        161.
        2007.04 구독 인증기관 무료, 개인회원 유료
        최적의 효율적이고 경쟁력 있는 물류시설을 조성하기 위해 수요업체(화주)를 대상으로 입지, 임대면적, 임대조건, 임대가격, 건물의 배치, 건물의 구조, 교통처리계획, 부대시설 등에 관한 다양한 의견을 사전에 수렴, 물류시설 건립에 반영할 필요성이 대두되고 있다. 조사를 위한 시간과 비용이 과대하게 발생하는데 이러한 비효율적인 조사를 보다 효율적으로 정리하고 더 나아가 투자자의 신속하고 정확한 의사결정을 지원하기 위해서 간단하게 몇 가지의 요소만으로 사전에 진단하고 정확한 의사결정을 할 수 있는 도구의 필요성이 대두된다. 즉, 기존에는 상기에서 언급한 '수요자 접근법'을 이용하여 진행하여 왔는데, 거점적인 측면과 시설적인 측면의 요소를 반영한 새로운 "요인비교법"을 도출하였다.
        4,200원
        162.
        2007.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        ETCS는 1990년대 초부터 선진국에서 유료도로 톨게이트에서의 교통체증 및 지체문제를 해결하기 위하여 적용되기 시작하였다. ETCS의 성공적인 운영을 위해서는 ETCS 이용률을 정확히 예측하는 것이 중요하다. 본 연구에서는 창원시의 신뢰성 있는 ETCS 이용수요예측 모형 개발이 시도되었다. 총 11개의 설명변수들을 고려하면서 이항로짓 및 신경망 모형들이 검토되었다. 신경망모형에서 가장 좋은 결과를 얻었다. 그러나 ETCS 이용률 추정을 위해 설명변수 11개를 추정하기에는 어려움이 있으므로 차내장치 임대보증금, 절약시간, 할인률의 중요 3개 정책변수만을 고려한 신경망 및 로짓 모형들을 ETCS 이용률 추정모형으로 분석하였다. 모형의 예측력 평가와 적합도 분석에 있어서 신경망모형이 로짓모형보다 우수한 모형으로 판단되어지나 학습에 사용된 9가지 이외의 시나리오에서 신뢰성이 떨어지는 것으로 나타나, ETCS 이용률 추정 모형으로 3개의 중요한 정책변수를 고려한 이항로짓모형이 제안된다. 이 모형은 평균제곱오차 0.14, σ20.31, x2488.9로 신뢰성이 높은 모형으로 평가되며 창원시와 규모가 유사한 도시에 적용이 가능할 것으로 기대된다.
        4,200원
        163.
        2006.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
          Recently, youth unemployment is not a mere economic problem in Korea. It could be developed into a serious social problem. It has been long since youth unemployment rate was more than double in total unemployment rate, which stood at 3.5 percent in 2005
        4,000원
        164.
        2006.05 구독 인증기관 무료, 개인회원 유료
        Recently, youth unemployment is not a mere economic problem. It could be develop into a serious social problem. According to data released by the National Statistical Office that the jobless rate for younger koreans aged between 15 and 29 reached 8 percent in 2005, which was more than double in total unemployment rate. Unemployment among young people has been getting worse since the foreign exchange crisis. Hence, this paper examines the status and causes of the youth unemployment problem and studies the possibility to apply the Demand-Supply Chain Management to the problem.
        4,000원
        165.
        2006.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
          This study is provide information in the development of energy conservation technologies by means of technological demand survey covering energy market and industrial field among energy-related technologies.   For this purpose, we check both the present
        4,000원
        166.
        2005.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Some distributions have been used for diagnosing the lead time demand distribution in inventory system. In this paper, we describe the negative binomial distribution as a suitable demand distribution for a specific retail inventory management application.
        4,000원
        167.
        2005.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 기계고장 시 대체경로를 고려한 새로운 유사계수와 주어진 기간 내 수요변화를 고려하여 제조 셀을 구성하는 방법론을 개발하는 것이다. 본 연구의 방법론은 2단계로 나누어진다. 1단계에서는 기계고장 시 이용 가능한 대체경로를 고려하여 새로운 유사계수를 제시하고 유전자 알고리즘을 활용하여 부품 군을 식별하는 것이다. 셀 응용의 성패를 좌우하는 주요한 요소들 중 하나는 수요변화에 대한 유연성으로서 수요변화, 이용 가능한 기계의 능력 및 납기일에 따라
        4,000원
        168.
        2005.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Some distributions have been used for diagnosing the lead time demand distribution in inventory system. In this paper, we describe the negative binomial distribution as a suitable demand distribution for a specific retail inventory management application.
        4,000원
        169.
        2005.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        6,600원
        170.
        2005.05 구독 인증기관 무료, 개인회원 유료
        This study is to provide information in the development of energy conservation technologies by means of technological demand survey covering energy market and industrial field among energy-related technologies. For this purpose, we check both the present state of energy technologies and trends of social change in Korea, and then combine social needs with major, bottleneck, and essential technologies required for the future. The range of this study covers the field of industry, kiln, furnace, metal, building, transport, and electricity. For case study, valid 120 companies among the 500 companies selected randomly in the energy data-base of Korea institute of energy research (KIER) are considered.
        3,000원
        171.
        2005.05 구독 인증기관 무료, 개인회원 유료
        Some distributions have been used for diagnosing the lead time demand distribution in inventory system. In this paper, we describe the negative binomial distribution as a suitable demand distribution for a specific retail inventory management application. We here assume that customer order sizes are described by the Poisson distribution with the random parameter following a gamma distribution. This implies in turn that the negative binomial distribution is obtained by mixing the mean of the Poisson distribution with a gamma distribution. The purpose of this paper is to give an interpretation of the negative binomial demand process by considering the sources of variability in the unknown Poisson parameter. Such variability comes from the unknown demand rate and the unknown lead time interval.
        4,000원
        172.
        2004.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The company was focusing on production which was partial mission rather than acquiring the information of customer in intensive process industry. The company accepted loss which is from over-production, losing of opportunity. After changing to web environment, supply chain is more complicated and need of customer is more various. As a result the company hard works on controlling production rates, production quantities in production area and gathering exact information which is about available resource and available quantities. Cooperated demand planning have to get decreasing of inventory, improving of customer service in supply chain management. Specially demand planning that considers allocation of capacity is executed in Iron-Industry. Demand planning must be classified by customer, region and supply position level.
        4,000원
        173.
        2003.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        4,000원
        174.
        2003.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        5,400원
        175.
        2003.11 구독 인증기관 무료, 개인회원 유료
        The company was focusing on production which was partial mission rather than acquiring the information of customer in intensive process industry. The company accepted loss which is from over-production, losing of opportunity. After changing to Web environment, supply chain is more complicated and need of customer is more various. As a result the company hard works on controlling production rates, production quantities in production area and gathering exact information which is about available resource and available quantities. Cooperated demand planning have to get decreasing of inventory, improving of customer service in supply chain management. Specially demand planning that considers allocation of capacity is executed in Iron-Industry. Demand planning must be classified by customer, region and supply position level.
        4,000원
        177.
        2002.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        As of late 1999, the number of individuals convicted of all kinds of drug offenses exceeded 10,000, far below the 200,000 actual drug users or 1 out of 230 Koreans. Given that the index of drug crime that represents the number of arrested drug criminals per 100,000 people has a threshold of 20, the current index of 23 exceeds this threshold. Thus, the severity of drug crime may be said to be a social problem in Korea. In the past, the epidemiology of drug users had been predominantly talents or entertainers. However, since the 1990s, a distribution of drug users has expanded into many other sectors throughout society to include taxi drivers, households, students, professionals, and farmers. Thus, the impact of drug problems has become bigger worse, the increasing number of drug users among juveniles is alarming. Given the significance of the issue of severity and spread of drug crimes, this research will be confined the drug. The Korean Government is of the opinion that drug abuser can be both punished and treated. Therefore, under the Korean drug-related law, a drug abuser who turns out to be a drug addict can be subject to compulsory treatment or to punishment. The biggest problem of the method of approaching to drug matters of Korea is that the Korean Government emphasize the supply more than the demand. Therefore, I think that from now on we must put more attention and investment on the demand than the supply for the policy of controling drug in Korea.
        8,100원
        178.
        2001.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This research fundamentally deals with an analysis of service level for a multi-level inventory distribution system which is consisted of a central distribution center and several branches being supplied stocks from the distribution center, Under continuous review policy, the distribution center places an order for planned order quantity to an outside supplier, and the order quantity is received after a certain lead time. Also, each branch places an order for particular quantity to its distribution center, and receives the order quantity after a lead time. In most practical distribution environment, demands and lead times are generally not fixed or constant, but variable. And these variabilities make the analysis more complicated. Thus, the main objective of this research is to suggest a method to compute the service level at each depot, that is, the distribution center and each branch with variable demands and variable lead times. Further, the model will give an idea to keep the proper level of safety stocks that can attain effective or expected service level for each depot
        4,200원
        179.
        2000.11 구독 인증기관 무료, 개인회원 유료
        In this research, the system is assumed to carry a single item of which the demand types vary. Demand type is defined as a management's classification of the item according to the demand source or to the service purpose. The purpose of this research is to find the optimal inventory control policy when the system carries a single item which consists of multiple demand types. In this research, the optimizing algorithm contains a heuristic, therefore, the optimal Is not guaranteed by the algorithm. At least, this research provides the solution to the problems that have not been solved by the existing algorithms.
        3,000원