• Title/Summary/Keyword: logistics technology

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Short-Term Prediction Model of Postal Parcel Traffic based on Self-Similarity (자기 유사성 기반 소포우편 단기 물동량 예측모형 연구)

  • Kim, Eunhye;Jung, Hoon
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.43 no.4
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    • pp.76-83
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    • 2020
  • Postal logistics organizations are characterized as having high labor intensity and short response times. These characteristics, along with rapid change in mail volume, make load scheduling a fundamental concern. Load analysis of major postal infrastructures such as post offices, sorting centers, exchange centers, and delivery stations is required for optimal postal logistics operation. In particular, the performance of mail traffic forecasting is essential for optimizing the resource operation by accurate load analysis. This paper addresses a traffic forecast problem of postal parcel that arises at delivery stations of Korea Post. The main purpose of this paper is to describe a method for predicting short-term traffic of postal parcel based on self-similarity analysis and to introduce an application of the traffic prediction model to postal logistics system. The proposed scheme develops multiple regression models by the clusters resulted from feature engineering and individual models for delivery stations to reinforce prediction accuracy. The experiment with data supplied by main postal delivery stations shows the advantage in terms of prediction performance. Comparing with other technique, experimental results show that the proposed method improves the accuracy up to 45.8%.

Virtual Design and Construction (VDC)-Aided System for Logistics Monitoring: Supply Chains in Liquefied Natural Gas (LNG) Plant Construction

  • Moon, Sungkon;Chi, Hung-Lin;Forlani, John;Wang, Xiangyu
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.195-199
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    • 2015
  • Many conventional management methods have emphasized the minimization of required resources along the supply chain. Accordingly, this paper presents a proposed method called the Virtual Design and Construction (VDC)-aided system. It is based on object-oriented resource control, in order to accomplish a feed-forward control monitoring supply chain logistics. The system is supported by two main parts: (1) IT-based Technologies; and (2) VDC Models. They enable the system to convey proactive information from the detection technology to its linked visualization. The paper includes a field study as the system's pre-test: the Scaffolding Works in a LNG Mega Project. The study demonstrates a system of real-time productivity monitoring by use of the RFIDbased Mobile Information Hub. The on-line 'productivity dashboard' provides an opportunity to display the continuing processes for each work-package. This research project offers the observed opportunities created by the developed system. Future work will entail research experiments aimed towards system validation.

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A Green Logistics Network Design to Increase Responsiveness to Eco-Friendly Consumers

  • Eungoo KANG
    • The Journal of Industrial Distribution & Business
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    • v.14 no.11
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    • pp.1-9
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    • 2023
  • Purpose: The industrial sector, especially in developed countries, is seen as the primary threat to sustainability. As a result, contemporary organizations prioritize establishing sustainable business practices. This sustainability can be achieved by organizations being concerned with their external environments, which is referred to as going green. This study aims to provide a green logistics network design to explain how to attract green consumers. Research design, data and methodology: This study conducted a comprehensive process to obtain textual dataset in the current literature and finally the author could collect total 26 relevant prior studies to achieve the purpose of the study. All dataset was thoroughly screened and selected for the high-degree of validity. Results: Based on the intensive literature review, the author insists that the four findings presented in this study will be useful as they provide evidence of the importance of technology in achieving global sustainability.in the situation we face that technology has become an important part of human life. Conclusions: This study provides meaningful insights into the environmental strategies that organizations across the world can implement to achieve a green supply chain based on the solutions in this study. The strategies presented in this study are evidence-based and have been tested through different studies.

A Study on the Optimization of the Size of the Corrugated Fiberboard Cartons for Export of Agricultural Products (신선 농산물 수출을 위한 골판지 상자 크기의 최적화 연구)

  • Minhwi Kim;Youn Suk Lee;Myungho Lee;Euihark Lee
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.30 no.2
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    • pp.121-129
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    • 2024
  • This study aimed to focus on the optimization of the external dimension sizes in the corrugated fiberboard cartons (CFCs) for exporting agricultural products. The commercial CFCs of current fresh produces such as paprika, Asian pear, melon, sweet potato, and oriental melon for export were used for this study. The guidelines of the minimum internal dimensions of the refrigerated reefer container, the dimensions of pallets, and the maximum load height of a stack were referred to KS T ISO 668, KS T 1372, and the Container Handbook by the German Insurance Association, respectively. These principles were selected as a ground rule for the external dimensions of CFCs. Package layout design programs of ArtiosCAD and Cape Pack software were used to confirm the box stacking patterns and revise the external dimension of CFCs. The final external dimensions of each CFC were revised from 5 to 30 mm compared to its original dimensions. The maximum load of each stacking box per pallet has been increased from 0.0 to 12.5% compared to its original load.

Productivity Improvement by Using RFID in Industry (RFID를 활용한 기업의 생산성제고)

  • Hwang, Nam-Seong
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.32 no.11
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    • pp.1041-1046
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    • 2008
  • RFID is an essential and inevitable technologies in logistics and manufacturing ones. The progress of RFID technology is still very slow owing to the cost of RFID and peripheral technologies however, some foreign countries such as US and Japan have already adopted RFID into real life for example, transportation and logistics and established its technologies as a commercial ones. Therefore, The purpose of this study is to prove that RFID technology can improve productivity and to take an example of a company adopted RFID technology had improved 50% or more increase in productivity. By demonstrating that, the necessity and effectiveness of RFID has proven. There are still many things to be solved like the development of RFID attaching machine. The machine was also suggested in this study.

Modified Genetic Operators for the TSP

  • Soak Sang Moon;Yang Yeon Mo;Lee Hong Girl;Ahn Byung Ha
    • Journal of Navigation and Port Research
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    • v.29 no.2
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    • pp.141-146
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    • 2005
  • For a long time, genetic algorithms have been recognized as a new method to solve difficult and complex problems and the performance of genetic algorithms depends on genetic operators, especially crossover operator. Various problems like the traveling salesman problem, the transportation problem or the job shop problem, in logistics engineering can be modeled as a sequencing problem This paper proposes modified genetic crossover operators to be used at various sequencing problems and uses the traveling salesman problem to be applied to a real world problem like the delivery problem and the vehicle routing problem as a benchmark problem Because the proposed operators use parental information as well as network information, they could show better efficiency in performance and computation time than conventional operators.