• Title/Summary/Keyword: relocating

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Optimal VMS Relocating Methodology (VMS 이설위치결정 방법론)

  • Lee, Chungwon;Song, Young Hwa;Moon, Hak Ryong;Kim, Yong Jin
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.26 no.3D
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    • pp.401-407
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    • 2006
  • VMS which provides information about real-time traffic situation to the drivers is operating 41 places in 204km section at 2003 present time. Contrary to VMS which is constructed in freeway or highway, VMS in Roadway is increasing the demand of relocating according to development of environment. However there is not any definite standard for ITS field devices' relocating. That would be many problem such as re-relocating in the near future. This study presents optimal VMS relocating methodology using the concept of Decision Problem considering budget and number of drivers given information.

Analysis of Detent Force Reduction Method in a Permanent Magnet Linear Synchronous Motor

  • Jang, Seok-Myeong;Yoon, In-Ki;Lee, Sung-Ho;Kang, Do-Hyun;Jeong, Yeon-Ho
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • v.12B no.1
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    • pp.1-6
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    • 2002
  • The severe problem in improving the positioning precision of a permanent magnet linear synchronous motor (PMLSM) is the large detent farce caused by the permanent magnet arrangement. It is generally an undesired effect that contributes to the torque ripple, vibration and noise of machine. The detent force is arisen from the difference of the position of a permanent magnet end and a tooth position. In this paper, the four methods to reduce detent force were studied and analyzed. The methods are adjusting the width of permanent magnet, varying the shape of armature teeth, relocating the permanent magnet, and adjusting the width of permanent magnet and relocating the permanent magnet at the same time. To analyze the detent farce according to flour methods, a two-dimensional Finite Element Analysis [FEA] was used and we compared with the ratio of reduction of the detent farce according to the flour methods.

The effects of Robot as 4th industry revolution Technology on Labor Market and Trade (4차산업혁명 대응 기술로서 로봇이 노동 시장과 무역에 미치는 영향)

  • Jeong-Ho Yoo;Byeong-Ho Lim
    • Korea Trade Review
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    • v.47 no.5
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    • pp.241-251
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    • 2022
  • As a 4th industrial revolution technology, robots are changing the form of labor market and trade in Korea. In the future, changes in the international trade order are expected to move in the direction of shortening global supply chains and restricting trade between countries. Accordingly, reshoring of relocating overseas production facilities to Korea or near-shoring of relocating overseas production facilities to neighboring allies may expand. In this context, this study analyzed the impact of robot introduction on the domestic labor market and trade based on firm-level data. As a result of analysis based on the 'business activity data' accumulated from 2017 to 2019, the introduction of robot technology was analyzed to expand low-wage, low-skilled employment. Analysis on trade shows that the introduction of robots decreases exports and increases imports. In order to expand exports through the technology of the 4th industrial revolution, employment expansion and robot introduction should occur at the same time, rather than replacing the labor force with robots. In addition, it is thought that reshoring's goal of risk management can be achieved when a stable supply chain for imports of raw materials or essential goods, which are difficult to transfer to Korea, is established together.

A Design and Implementation for Dynamic Relocate Algorithm Using the Binary Tree Structure (이진트리구조를 이용한 동적 재배치 알고리즘 설계 및 구현)

  • 최강희
    • Journal of the Korea Computer Industry Society
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    • v.2 no.6
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    • pp.827-836
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    • 2001
  • Data is represented by file structure in Computer System. But the file size is to be larger, it is hard to control and transmit. Therefore, in recent years, many researchers have developed new algorithms for the data compression. And now, we introduce a new Dynamic Compression Technique, making up for the weaknesses of huffman's. The huffman compression technique has two weaknesses. The first, it needs two steps of reading, one for acquiring character frequency and the other for real compression. The second, low compression rate caused by storing tree information. These weaknesses can be solved by our new Dynamic Relocatable Method, reducing the reading pass by relocating data file to dynamic form, and then storing tree information from pipeline structure. The first, it needs two steps of reading, one for acquiring character frequency and the other for real compression. The second, low compression rate caused by storing tree information. These weaknesses can be solved by our new Dynamic Relocatable Method, reducing the reading pass by relocating data file to dynamic form, and then storing tree information from pipeline structure.

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Improvement Plans for Anchorage at Yeosu·Kwangyang Port (여수·광양항 정박지 개선방안에 관한 연구)

  • Lee, Hong-Hoon
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.23 no.1
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    • pp.17-25
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    • 2017
  • Relocation and expansion of existing port facilities are necessary given this increase in marine traffic volume and the presence of larger entering vessels. Therefore, this study focused on anchorage among water facilities, and examined the degree of harmony between anchorage and other water facilities at Yeosu Kwangyang Port. The number of anchoring vessels in relation to anchorage over the past 5 years, total anchored hours by anchorage-years, average number of simultaneously anchored vessels by anchorage-years, maximum number of simultaneously anchored vessels by anchorage, and maximum size of anchored vessels by anchorage have been surveyed. The minimum anchorage radius has been calculated according to the designated anchorage capacity according to anchorage. Finally, improvement plans for Yeosu Kwangyang Port's anchorage have been suggested, including relocating of Yeosu no. 2 anchorage, expanding of Kwangyang no. 1 ~ 5 anchorage, relocating of Kwangyang no. 8 ~ 9 anchorage, and repealing of Kwangyang no. 11 anchorage.

Using Malmquist Analysis to evaluate productivity of relocating Public Institution (맘퀴스트 분석을 이용한 지방이전 공공기관 생산성 평가)

  • Kim, Ju-Young;Hong, Jong-Yi
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.1
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    • pp.395-404
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    • 2019
  • South Korea's economic growth was rapid, It was occasioned the concentration of resources in the metropolitan area. On the other hand, the province has a narrow economic base compared to the metropolitan area, and the underpopulation have been identified. Thus, The government announced the 'National balanced development law' in 2004 to reduce the problem of regional imbalances. The study collected data on 95 of relocated public institutions, and unlike previous studies, Mamquist analysis was used to compare the productivity before and after each public institutions' s relocation. The study focused on how the relocation of public institutions affected the productivity of public institutions through Malmquist Analysis. The results of the analysis show that productivity is declining after most public institutions have moved. And two independent samples T-test result, respective yearly average is nonsignificant.

Research about Expansion Joint of Continuous Welded Rail on Reset (장대레일 신축이음매 재설정에 관한 연구)

  • Min, Jun-Ho;Lee, Chang-Hun;Ryu, Jae-Kwang;Kim, Hyo-San
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.2129-2134
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    • 2011
  • This research increases efficiency of track-maintenance repair and cuts maintenance cost with relocating Continuous Welded Rail how to set up install criteria by comprehension analysis through an on-the-spot survey and track measurement about installing place at expansion joint of Continuous Welded Rail. This scope of this research is 427 places installed at Line No.1~4, Seoulmetro. We take a field study and select two spots. So we survey wheel-load, cross-load and railbed cross-resistance and suggest install criteria of expansion joint of Continuous Welded Rail through investigation and analysis of track facilities about neighboring section of expansion joint.

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Expansible and Reconfigurable Neuro Informatics Engine : ERNIE (대규모 확장이 가능한 범용 신경회로망 : ERNIE)

  • 김영주;정제교;동성수;이종호
    • Proceedings of the IEEK Conference
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    • 2003.07d
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    • pp.1263-1266
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    • 2003
  • One of the hardest problems in implementation of digital neural network are extension of synapses and programmability for relocating neurons. This paper Proposes a new hardware structure to solve these problems. The proposed structure can reconfigure network connections without alteration of basic design, and extend number of synapses attached to one neuron. Also, it is possible to extend the number of neurons and layers by connecting many MPUs(Modular Processing Unit). Generality and extensibility are verified by composing various kinds of Perceptorn and Kohonen networks using the architecture proposed in this paper and the verification performances compares well with HDL simulation results as well as the results of C modelling.

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An Experimental Study on the Relocating Plastic Hinging Zones of Reinforced Concrete Beams Subjected to Cyclic Loads (반복하중을 받는 철근콘크리트 보의 소성힌지 이동에 관한 실험적 연구)

  • 김윤일;최창식;천영수;이리형
    • Proceedings of the Korea Concrete Institute Conference
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    • 1989.10a
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    • pp.77-82
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    • 1989
  • In this paper an experimental approach of the relocation plastic hinging zones of nine reinforced concrete exterior beam-column subassemblages under cyclic loads was tried. The main parameters of the testing program were location of the plastic hinge, difference of the special reinforcement, inclined or intermediate layers of longitudinal reinforcement, applied maximum shear stress. The conclusions presented herein are based on the limited texts conducted. Inclined or intermediate layers of longitudinal reinforcement and extra top and bottom steel in the beam over a specific legnth can be used to move the beam plastic hinging zone away from the column face. But, for the use of intermediate layers of longitudinal reinforcement, sheat reinforcement detail need further investigation.

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