• Journal of Power Electronics
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• v.19 no.2
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• pp.602-611
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• 2019

The major drawbacks of magnetic resonant coupled wireless power transfer (WPT) to the embedded sensors on spindles are transmission instability and low efficiency of the transmission. This paper proposes a novel double-loop coil design for wirelessly charging embedded sensors. Theoretical and finite-element analyses show that the proposed coil has good transmission performance. In addition, the power transmission capability of the double-loop coil can be improved by reducing the radius difference and width difference of the transmitter and receiver. It has been demonstrated by analysis and practical experiments that a magnetic resonant coupled WPT system using the double-loop coil can provide a stable and efficient power transmission to embedded sensors.

• Journal of the Korea Society of Computer and Information
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• v.26 no.1
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• pp.119-125
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• 2021

Companies' efforts to find ways to reduce logistics costs for products and raw materials currently being brought in to produce products in all manufacturing processes are one of the biggest challenges, and the recent global recession has made logistics management even more important. This development technology limits the development of IN/OUT Bound truck logistics and dock management optimization system in the factory, especially by using UHF 900Mhz RFID radio frequency technology.

• Journal of Korean Port Research
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• v.9 no.1
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• pp.1-17
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• 1995

According to the analysis results, first, the purpose of information system is usually internal-oriented (decrease of employees and increase of productivity) in the port-logistics industry. Second, the success factor of information system for internal strategy group is different for its external strategy group. Third, the external enviornment factors affect on the information strategy and the success factor in the port-logistics industry. Therefore, I think that it is necessary for the port-logistics industry to consider the information strategy direction and its affecting factors in the port-MIS.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.44
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• pp.311-321
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• 1997

The development of Joint-Logistics System(JTS) for small/medium sized companies has been proposed for, particularity, Namdong Indusrial Complex located in Incheon. In this paper, JTS methodology is introduced and characterized in terms joint-control transportation, material handling and storage and order receipt. This methodology, which is unprecedented in Korea, has been considerably investigated and developed to implement a feasible model in Japan. A number of successful cases in Japanese companies are also presented to show how it works.

• The Journal of Information Systems
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• v.5
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• pp.329-344
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• 1996

The role of Logistics Information Technology(LIT) activity within the firm has broadened considerably over the past decade and it been a topic of growing importance for both practitioners and academicians since the mid-1990's as logistics efficiencies have become a main concern in today's business management. This research empirically examines the difference between firm characteristics and LIT activity, thus offers an strategic guideline for practicers.

• Journal of the military operations research society of Korea
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• v.22 no.2
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• pp.18-36
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• 1996

This paper provides a research on some design techniques of Industrial Engineering / Management Science (IE/MS) for more efficient logistics support in developing armament systems. It includes RAM (reliability, availability and maintainability) analysis techniques, decision making analysis techniques, human factors engineering techniques and logistics support analysis techniques.

• Journal of Korea Port Economic Association
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• v.27 no.3
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• pp.273-288
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• 2011

Recently, the rankings of Korean container ports in terms of container handling cargo volume were plunged down due to the emerging Chinese ports. The efficient container ports strategies which increase container port competitiveness were requested. In this respect, it is urgently required to draw out constituent factors for Port Logistics, weigh these factors, and finally focus on improving the suggested factors. The aim of this paper is to evaluate weight and priority values for 'inner consisted factors' and 'outer requested factors' of port logistics by using the AHP(Analytic Hierarchy Process) method. As for the analysis regarding the inner consisted factors, the results were shown as follows: a storage and handling system (0.288) as the first rank; an information system of port logistics (0.210) as the second rank; an inland intermodal system (0.189) as the third rank; a ship's entering and departuring system (0.184) as the fourth rank, and a ship's berthing system (0.129) as the fifth rank. In terms of analysis regarding outer requested factors, the results came out as follows: a logistics cost (0.360) as the first rank; a port service (0.128) as the second rank; a connectivity (0.118) as the third rank; a hinterland condition (0.116) as the fourth rank; an convenience (0.106) as the fifth rank; a regional center (0.095) as the sixth rank, and an availability (0.077) as the seventh rank. For analyzing the priorities changes in constituent factors, the comparison of results between the year 2007 and the year 2011 was done. As the results, among inner consisted factors, 'information system of port logistics' was ranked first in the year 2007 while 'a storage and handling system' became the most important factor in the year 2011. Among the inner consisted factors, however, the logistics cost was the important factor in 2007 and 2011, respectively.

• International Commerce and Information Review
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• v.18 no.1
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• pp.151-178
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• 2016

This study is based on precedent research on contract fairness to prevent irrational contract practices and enable long term mutual interests between logistic firms and shipper. Actual unjust contract examples were identified in order to help create this positive partnership. An analysis on the difference of perspective proved that while the logistics companies believed on the positive effects of the presence of additional expense clauses & potential risk clauses, the very same companies believed that the concretization of procedural & distributional equitability clauses will cause positive effects on the partnership between the logistics companies and the shipper. On the other hand, concretizationof the expense clauses brings about a negative effect for the shipper company. Also, the perspective of a logistics company appears that such results were identical to the empirical study which had a positiveeffect. However, the shipping company had a negative and a rather opposite point of view. These researches prove that there should be an alteration in perception for the shipper company. It is believed that the comparison of the results of this research and the leading researches may provide grounds for thought-provoking suggestions that must be concretized and also for those in need for further settlement for drafting the standardized logistics contract and its logistics.

• Proceedings of the IEEK Conference
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• 2004.08c
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• pp.729-734
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• 2004

The e-Logistics means the virtual business activity and service architecture among the logistics companies based on the Internet technology. The management of vehicles' location in most conventional vehicle tracking system has some critical defects when it deals with data which are continuously changed. It means the conventional vehicle tracking system based on the conventional database is unable eventually to cope with the environment that should manage the frequently changed location of vehicles. The important things in the evaluation of the vehicle tracking system is to determine the threshold of cost of database ,update period and communication period between vehicles and the system. In other words, the difference between the reallocation of vehicle and the data in database can evaluate the overall performance of vehicle tracking systems. Most of the previous works considers only the information that is valid at the current time, and is hard to manage efficiently the past and future information. To overcome this problem, the efforts on moving objects management system(MOMS) and uncertainty processing have been started from a few years ago. In this paper, we propose an uncertainty processing model and system implementation of moving object that tracks the location of the vehicles. We adopted both linear-interpolation method and trigonometric function to chase up the location of vehicles for the past time as well as future time, respectively. We also explain the comprehensive examples of MOMS and uncertainty processing in parcel application that is one of major application of e-Logistics domain.

• The Journal of Asian Finance, Economics and Business
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• v.2 no.3
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• pp.33-36
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• 2015

Innovations in the procurement logistics now is very popular in Kazakhstan. Nowadays there are a lot of documents of transport infrastructure and Kazakhstan logistic system is developing more and more. Procurement logistic is the direction where you can count, sometimes you can buy some products or transport equipments. Logistic in Kazakhstan is new direction, there are a lot of young people who choose this specialty and will stay demanded. Our president said a lot of words in strategies about development in logistics and so there will be new methods that will be used here. Innovations are new technologies that are used in different spheres so this structure as procurement logistic will develop in Kazakhstan and every citizen of our republic will support it. Transport systems are used for transitions different products so there are a lot new transition roads for example Western China - Western Europe; Astana-Almaty; Astana-Ust-Kamenogorsk; Astana-Aktobe, Atyrau; Almaty - Ust-Kamenogorsk; Karaganda - Zhezkazgan - Kyzylorda; Atyrau-Astrakhan, it helps Kazakhstan to support international links between other countries.