• 한국유통학회지:유통연구
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• 제1권2호
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• pp.141-172
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• 1996

This study is to investigate global logistics strategies of Korean electronics companies. in terms of service parts. According to the survey, Korean electronics companies were pursuing multi-level global logistics network such as global, continental, national, regional and service center echelon for improving the efficiency of service parts global logistics. Especially there was a tendency of developing new continental distribution centers. And the companies were exploiting efficiency through inventory control by multi-level echelon, demand forecasting by the product life cycle and supply and service lead time management. But there were some insufficient factors for the efficiency of global logistics operation at the construction of worldwide real time logistics information system and pursuit of the efficiency on the whole network including subcontractors. For the future competitive advantage of the Korean electronics companies, the following are suggested: 1) the establishment of arranged logistics channel adjusting each company's global strategy, 2) the construction of worldwide real time logistics information system, 3) the reengineering of all logistics procedures such as order processing, shipping, inventory control, etc., 4) the enhancement of the ratio of the supply from the external companies and the internal manufacturing subsidiaries at each continent, 5) and the pursuit of operational internalization of external subcontractors.

• 대한안전경영과학회지
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• 제13권4호
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• pp.25-33
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• 2011

Workers in logistics centers also are exposed to serious musculoskeletal disorders the same as workers in general manufacturing due to operating forklifts and other labor duties. The frequency of these work related injuries decreases, workers' job satisfaction In addition, it causes many employees questioning a job change, which is regarded as the primary factor which drops the productivity. In this paper, we conducted a survey ti perceive the correlation between work related injuries in the fields of distribution centers and job satisfaction. Furthermore we made statistical analysis with our findings. The results of our analysis showed that the frequency of work related injuries due to workers' repetitive loading and unloading work is the primary factor which lowers job satisfaction. In order to improve aforementioned problem we propose first of all loading and unloading on pallet basis, second of all automation and computerization of logistics systems, and third of all ensurinf sufficient break time.

• 대한안전경영과학회지
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• 제17권3호
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• pp.221-229
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• 2015

The economy is advancing at quite a bit is the role of the Distribution Center, a rise is evolving and mullyuryang Any existing storage facilities were not creating added value from contact with the customer service centers play the role. In order to increase its market competitiveness also pl approach to three in order to enforce cost savings and run. But by industry, the goods, operating characteristics of the cooperating in order to differentiate themselves with the operating process of improvement of operating system, including costs and took lots of time of service.Quality is lower ; all were missing. Such logistics centers, standard management model to address a little bit problem with highest academic. I want to try send it to, each product-category's industrial and business forms, standardisation is really a difficult situation, current study is further progress all you if you are The process managed to turn component is sure that we will be able to be judged.

• 한국항만경제학회지
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• 제21권1호
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• pp.73-91
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• 2005

The goal of the project on developing Korea as the logistics hub of Northeast Asia is to develop Busan Port and Gwangyang Port as international logistics centers by promoting and attracting more warehouses. As is well known, there is intense competition among ports located in major economic blocs to become the regional logistics hub. Gwangyang is second to none in terms of being favorably located at the center of Northeast Asia. Gwangyang Port, however, lacked in SOC construction and faced the poor government support politics hub of Northeast Asia. They are i) expanding the logistics infrastructuressuch as expressway and railroads between Yeosu Airport and Gwangyang Port, ii) Setting up new port hinterland and industrial complex in the vicinity of Gwangyang Port iii) securing high value-added fixed cargo traffic, and iv) improving laws and institutions.

• 한국빅데이터학회지
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• 제6권1호
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• pp.1-12
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• 2021

모바일 기반 온라인 쇼핑의 급성장과 COVID-19로 인해 시작된 비대면 비즈니스의 성장은 택배와 같은 물류 서비스 수요를 폭발적인 증가를 이끌어냈다. 급격하게 성장한 수요에 대응하기 위해 대부분의 물류·유통기업들은 도심 내 풀필먼트 센터 구축을 통한 고객 서비스 수준 향상을 위해 노력하고 있다. 그러나, 높은 지가와 교통 체증 등과 같은 사회적 요인에 의해 도심 내 풀필먼트 센터를 확보하는 데 큰 어려움을 겪고 있다. 본 연구에서는 향후 고속도로에 스마트톨링 서비스가 전면 확대됨에 따라 유휴부지로 전환될 요금소 부지를 공유물류센터로 전환하기 위한 후보지 선정 방안을 제시한다. 이를 위해 사회연결망 분석을 통해 각 후보지들의 중심성을 분석하였으며, 중심성 평가의 특성에 따른 결과의 해석을 위한 네트워크 구조를 거리기반과 시간기반의 두 가지 방법으로 재설계하여 평가하였다. 누적된 중요도를 기준으로 적정 후보지 군을 선택하는데 활용될 수 있을 것이다.

• 지능정보연구
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• 제19권4호
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• pp.55-79
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• 2013

본 연구에서는 집중형 센터를 가진 역물류네트워크(Reverse logistics network with centralized centers : RLNCC)를 효율적을 해결하기 위한 혼합형 유전알고리즘(Hybrid genetic algorithm : HGA) 접근법을 제안한다. 제안된 HGA에서는 유전알고리즘(Genetic algorithm : GA)이 주요한 알고리즘으로 사용되며, GA 실행을 위해 0 혹은 1의 값을 가질 수 있는 새로운 비트스트링 표현구조(Bit-string representation scheme), Gen and Chang(1997)이 제안한 확장샘플링공간에서의 우수해 선택전략(Elitist strategy in enlarged sampling space) 2점 교차변이 연산자(Two-point crossover operator), 랜덤 돌연변이 연산자(Random mutation operator)가 사용된다. 또한 HGA에서는 혼합형 개념 적용을 위해 Michalewicz(1994)가 제안한 반복적언덕오르기법(Iterative hill climbing method : IHCM)이 사용된다. IHCM은 지역적 탐색기법(Local search technique) 중의 하나로서 GA탐색과정에 의해 수렴된 탐색공간에 대해 정밀하게 탐색을 실시한다. RLNCC는 역물류 네트워크에서 수집센터(Collection center), 재제조센터(Remanufacturing center), 재분배센터(Redistribution center), 2차 시장(Secondary market)으로 구성되며, 이들 각 센터 및 2차 시장들 중에서 하나의 센터 및 2차 시장만 개설되는 형태를 가지고 있다. 이러한 형태의 RLNCC는 혼합정수계획법(Mixed integer programming : MIP)모델로 표현되며, MIP 모델은 수송비용, 고정비용, 제품처리비용의 총합을 최소화하는 목적함수를 가지고 있다. 수송비용은 각 센터와 2차 시장 간에 제품수송에서 발생하는 비용을 의미하며, 고정비용은 각 센터 및 2차 시장의 개설여부에 따라 결정된다. 예를 들어 만일 세 개의 수집센터(수집센터 1, 2, 3의 개설비용이 각각 10.5, 12.1, 8.9)가 고려되고, 이 중에서 수집센터 1이 개설되고, 나머지 수집센터 2, 3은 개설되지 않을 경우, 전체고정비용은 10.5가 된다. 제품처리비용은 고객으로부터 회수된 제품을 각 센터 및 2차 시장에서 처리할 경우에 발생되는 비용을 의미한다. 수치실험에서는 본 연구에서 제안된 HGA접근법과 Yun(2013)의 연구에서 제안한 GA접근법이 다양한 수행도 평가 척도에 의해 서로 비교, 분석된다. Yun(2013)이 제안한 GA는 HGA에서 사용되는 IHCM과 같은 지역적탐색기법을 가지지 않는 접근법이다. 이들 두 접근법에서 동일한 조건의 실험을 위해 총세대수 : 10,000, 집단의 크기 : 20, 교차변이 확률 : 0.5, 돌연변이 확률 : 0.1, IHCM을 위한 탐색범위 : 2.0이 사용되며, 탐색의 랜덤성을 제거하기 위해 총 20번의 반복실행이 이루어 졌다. 사례로 제시된 두 가지 형태의 RLNCC에 대해 GA와 HGA가 각각 실행되었으며, 그 실험결과는 본 연구에서 제안된 HGA가 기존의 접근법인 GA보다 더 우수하다는 것이 증명되었다. 다만 본 연구에서는 비교적 규모가 작은 RLNCC만을 고려하였기에 추후 연구에서는 보다 규모가 큰 RLNCC에 대해 비교분석이 이루어 져야 할 것이다.

• 한국항만경제학회지
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• 제17권2호
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• pp.89-110
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• 2001

Recent trends in globalization and informatization underscore the importance of logistics. As a result, there is a need for skilled and specialized logisticians. Third Party Logistics (TPL) and Supply Chain Management (SCM) require logisticians with a broad base of knowledge in areas such as multimodal transport, international trade, information technology computers, finance, operations management, etc. This study conducted a survey to find out the opinions of demanders and suppliers. The results of the surrey show that there are more skilled logisticians in the field of management, computer works in manager level and system management. The survey also found that the certificate exam, which the Ministry of Construction and Transportation started in 1997 as the "Certified Logistics Manager" exam, should have more questions in areas such as foreign languages, computers, logistics information, management skills, etc. To produce better logisticians in Korea, the government will have to invest more into their education, especially near the major ports and metropolitan areas. In addition, it is important that universities and companies work together to provide students with internship and other field-experience teaming opportunities. Logistics education centers should be built at the national level. In addition, the existing certification should be divided into two separate certifications: one for ordinary logistics, and one for international logistics. To further improve the certification system, short-answer or essay questions should be added to the second exam, and an additional certification for the highest level logisticians, a so-called "professional logisticians certificate," needs to be introduced.ntroduced.

• 유통과학연구
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• 제21권9호
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• pp.93-102
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• 2023

Purpose: This study attempts to analyze the current status of the railway logistics business and to seek ways to improve it by using the business model as an analytical framework. It was intended to reflect practical implications that could be applied to the field, by dealing with issues at the industrial site related to each component in the business model. Research design, data and methodology: This study was conducted through literature review and field research. We analyzed academic papers and industrial reports on the development of the railway logistics industry and interviewed various stakeholders in the railway logistics industry. Results: This study determined the factors that could be eliminated, raised, reduced, or created from the customer and product perspective, infrastructure management perspective, and financial perspective. Conclusions: The growth of existing business can be achieved by lowering service prices, improving service quality, and securing large-scale transportation capacity. The additional transportation of high value goods and cold chain commodities will be promising business opportunities. Existing services can be provided to new customers (large pre-shippers, forwarding customers, etc.) in order to increase the size of sales Urban delivery services and comprehensive logistics services based on complex logistics centers may open an avenue for new market. A more timetable and track capacity need to be assigned to logistics, which significantly improve the flexibility and the competency of railway logistics.

• 한국생산제조학회지
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• 제24권5호
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• pp.521-529
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• 2015

Owing to a reliance on imported products from Europe and Japan, the use of logistics equipment with poor energy efficiency coupled with high maintenance costs can lead to high operating costs for some domestic logistic centers. To lower their operating costs, the logistic centers use motorized roller conveyors. In order to commercialize this process, it is necessary to establish the test criteria and assess the reliability of the process. Currently, there exists no standard verification method to test the reliability of motorized roller conveyors. In this study, we propose reliability assessment criteria for a: i) reliability test, ii) environmental test, iii) safety test, and iv) lifetime test.

• 산업공학
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• 제12권2호
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• pp.222-236
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• 1999

This paper presents a design and implementation of an intelligent-integrated production-logistics systems. The situation considered here is that there are multiple manufacturing plants and multiple distribution centers. Effective distribution resource and production planning are required to reduce inventory cost and to avoid inventory shortage. We propose an intelligent forecasting scheme of each distribution centers, adaptive inventory replenishment planning, distribution resource planning, and integrated production planning system. In forecasting a huge number of on-line model identification is performed using neural network approximation capability. An efficient adaptive replenishment planning and distribution resource planning are also presented in connection with forecasting scheme. An appropriate production is also requested based on production lead-time and the results of distribution planning. Experimental simulations are presented to verify the proposed approach using real data.