• Title, Summary, Keyword: Hub Connection

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Case Studies and Implications on Development Strategies of International Arbitration Hub in Major Asian Countries: Focused on Singapore and Hong Kong (아시아 중재 선진국의 국제중재 허브 육성전략 사례 분석 및 시사점 - 싱가포르와 홍콩을 중심으로 -)

  • Lee, Sangha;Ha, Choong-Lyong
    • Journal of Arbitration Studies
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    • v.29 no.4
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    • pp.101-120
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    • 2019
  • This study examines the development strategies of the arbitration industry in Singapore and Hong Kong, and its purpose is to provide implications for the development of the arbitration industry in South Korea. The main strategies implemented by Singapore and Hong Kong to develop the arbitration industry are as follows: first, improvement of the arbitration law system; second, active support of the government for promoting the arbitration industry; third, build up of an effective arbitration expert training system; and fourth, an arbitration-friendly attitude of the court. In order for South Korea to become an international arbitration hub in Northeast Asia, it is necessary to refer to the above-mentioned strategies. In addition, South Korea needs to develop marketing strategies that can differentiate itself from Singapore and Hong Kong, such as the development of an arbitration system in connection with the 4th Industrial Revolution, differentiation of the disputes sector, use of geographical advantages and a penetration pricing strategy, and support of the Korean Commercial Arbitration Board. In terms of marketing strategy, there are few studies on the development strategy of the arbitration industry in South Korea. In this respect, this study has academic value and differentiation.

A Branch-and-price Approach to the ATM Switching Node Location Problem

  • Kim, Deokseong;Park, Sunsoo;Lee, Kyungsik;Park, Kyungchul
    • Industrial Engineering and Management Systems
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    • v.3 no.2
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    • pp.92-99
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    • 2004
  • We consider the ATM switching node location problem (ANLP). In this problem, there are two kinds of facilities, hub facilities and remote facilities, with different capacities and installation costs. We are given a set of customers with each demand requirements, a set of candidate installation sites of facilities, and connection costs between facilities. We need to determine the locations to place facilities, the number of facilities for each selected location, the set of customers who are connected to each installed hub via installed remote facilities with minimum cost, while satisfying demand requirements of each customer. We formulate this problem as a general integer programming problem and solve it to optimality. In this paper, we present a preprocessing procedure to tighten the formulation and develop a branch-and-price algorithm. In the algorithm, we consider the integer knapsack problem as the column generation problem. Computational experiments show that the algorithm gives optimal solutions in a reasonable time.

A study on Improvement of Bandwidth Efficiency to FSS Internet with Spoofing and Cash Function

  • Hong Wan-Pyo
    • Journal of information and communication convergence engineering
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    • v.3 no.3
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    • pp.123-130
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    • 2005
  • This study performed five methods of tests and measurements to verify the improvement of connection time and bandwidth efficient of FSS (fixed satellite service) TCP/IP network by means of the cash function and the spoofing function. Tests and measurements are performed with; 1. Not to apply the cash and spoofing function 2. Apply the cash function 4. Apply both cash and spoofing function in HUB station and VSAT 5. In a typical commercial terrestrial Internet with LAN. The study results in this paper show that application of the spoofing and cash function greatly improves the bandwidth efficiency to FSS TCP/IP Internet service.

Development of a Simulator for the Intermediate Storage Hub Selection Modeling and Visualization of Carbon Dioxide Transport Using a Pipeline (파이프라인을 이용한 이산화탄소 수송에서 중간 저장 허브 선정 모델링 및 시각화를 위한 시뮬레이터 개발)

  • Lee, Ji-Yong
    • The Journal of the Korea Contents Association
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    • v.16 no.12
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    • pp.373-382
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    • 2016
  • Carbon dioxide Capture and Storage/Sequestration (CCS) technology has attracted attention as an ideal method for most carbon dioxide reduction needs. When the collected carbon dioxide is transported to storage via pipelines, the direct transport is made if the storage is close, otherwise it can also be transported via an intermediate storage hub. Determining the number and the location of the intermediate storage hubs is an important problem. A decision-making algorithm using a mathematical model for solving the problem requires considerably more variables and constraints to describe the multi-objective decision, but the computational complexity of the problem increases and it also does not guarantee the optimality. This research proposes an algorithm to determine the location and the number of the intermediate storage hub and develop a simulator for the connection network of the carbon dioxide emission site. The simulator also provides the course of transportation of the carbon dioxide. As a case study, this model is applied to Korea.

A basic Research on the Euro-Asian Continental Rail Corridor for Effective Connection and Operation (대륙횡단철도 연계운영의 효율화를 위한 기초조사)

  • Na Hee-Seung;Son Ji-Eon;Cho Young-Geol
    • Proceedings of the KSR Conference
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    • pp.534-541
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    • 2004
  • To boost the Korean peninsula as a logistical hub of North-East Asia in 21st century is an important part of Korean development strategies. This research has been conducted on the premise that the connection and operation of the Korean Peninsula break-railway and Euro-Asian railway network will be a great drive for Korean economy and railway technology development. For the preparation to do a further research on this subject, this paper introduces the general condition and related basic material for the railway network operation through the countries along the corridor. It also provides the basic data of railway and actual operation condition in the involved Euro- Asian areas, such as Russia, China, Mongolia, Kazakh-stan, etc.

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Study on Ways to Vitalize Gwangyang Port through the e-Business Environment - Centering on Gwangyang Port Websites - (e-비즈니스 환경에 따른 광양항 활성화 방안에 관한 연구 - 광양항 관련 웹사이트를 중심으로 -)

  • Choe, Seong-Hui
    • Journal of Korea Port Economic Association
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    • v.24 no.3
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    • pp.125-146
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    • 2008
  • Port marketing using websites in the e-business environment is essential in response to the competition to become hub ports, especially since shipping companies, ports' major customers, are being pressed by shippers to reduce logistics costs and introduce large ships to realize economies of scale, thereby reducing the number of ports of call. In this sense, this study intends to approach the port industry from the perspective of e-business and suggest vitalization methods using Gwangyang Port websites(6C; contents, community, communication, connection, commerce, customization) as one of the ways to turn it into Northeast Asia's hub port of logistics.

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Failure Examples Study for Tribological Characteristics of Drive Shaft and Axle System in Vehicles (자동차 드라이브 샤프트와 액슬 시스템의 트라이볼로지적인 특성에 관한 고장사례 고찰)

  • Lee, Il Kwon;Moon, Hak Hoon;Youm, Kwang Wook
    • Tribology and Lubricants
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    • v.29 no.6
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    • pp.397-402
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    • 2013
  • This study examined the tribological characteristics of the drive shaft and axle system in vehicles. The first drive shaft example contained end play for a CV joint that transferred part of the transmission power to the wheel. The joint part of the drive shaft was deformed because of reduced durability due to wear. Thus, vibrations caused the body to shake and become unbalanced when the drive shaft transferred the power. The second example was the cross-section of a shaft that connected the slip-connection of the propeller shaft on the input side to the yoke flange of the output side; the durability was reduced because of corrosion. End play caused by wear between the bearing and cross-section shaft appeared to cause shaking. In the third example, a grease leak reduced lubrication and thus caused damage to the hub bearing and inside the knuckle. The failure was produced by sticking. The fourth example had noise produced by the gear and gear transfer. This was due to the backlash of the pinion and few ring gears for the differential gear. Therefore, drive shaft and axle systems must be thoroughly checked and managed to minimize and reduce failure phenomena.

nArgBP2 as a hub molecule in the etiology of various neuropsychiatric disorders

  • Lee, Sang-Eun;Chang, Sunghoe
    • BMB Reports
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    • v.49 no.9
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    • pp.457-458
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    • 2016
  • Recent studies have strongly implicated postsynaptic scaffolding proteins such as SAPAP3 or Shank3 in the pathogenesis of various mood disorders, including autism spectrum disorder, bipolar disorder (BD), and obsessive-compulsive disorders. Neural Abelson-related gene-binding protein 2 (nArgBP2) was originally identified as a protein that interacts with SAPAP3 and Shank3. Recent study shows that the genetic deletion of nArgBP2 in mice leads to manic/bipolar-like behavior resembling symptoms of BD. However, the function of nArgBP2 at synapse, or its connection with the synaptic dysfunctions, is completely unknown. This study provides compelling evidence that nArgBP2 regulates the spine morphogenesis through the activation of Rac1/WAVE/PAK/cofilin pathway, and that its ablation causes a robust and selective inhibition of excitatory synapse formation, by controlling actin dynamics. Our results revealed the underlying mechanism for the synaptic dysfunction caused by nArgBP2 downregulation that associates with analogous human BD. Moreover, since nArgBP2 interacts with key proteins involved in various neuropsychiatric disorders, our finding implies that nArgBP2 could function as a hub linking various etiological factors of different mood disorders.

A Study on the Value Evaluation of e-Trade Platform Services using IPA(Importance Performance Analysis) (IPA를 활용한 전자무역 시스템의 서비스 가치평가에 관한 연구)

  • Lee, Sang-Jin;Shin, Seung-Man
    • International Commerce and Information Review
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    • v.12 no.2
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    • pp.59-83
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    • 2010
  • The purposes of the study is to evaluate the discrepancy between user's expectation and satisfaction degree in the service of uTradeHub. In this regard, this study infers general solutions in order to induce the intersection area using IPA technique. Then this paper will present directions to improve the service of uTradeHub. In terms of methodology, this article disclosed that IPA model approach is greatly useful to evaluate user's attribute. First, variables like the link of different works(f1), trust of system(f4), information connection(f7) are located on the first quadrant. This means that importance and satisfaction are all high variables for user. So, this is very important variables that need continuous administration in order to maintain present state. Second, variables such as the speed of information acquisition(f2), improvement of use(f3), stability of system(f5) are located on the second quadrant. This means that user's importance is high but user's satisfaction is low. Therefore, this area needs an active improvement strategy and quick maintenance for e-Trade application. Third, variables like the appropriateness of information usage fees(f8), easy subscription(f9), customer support service(f10) are located on the third quadrant. Because these variables are all low for user's importance and satisfaction, we have to arrange strong and radical remedy for e-Trade service. Finally, variables like information offer(f6) are located on the fourth quadrant. This means that user's satisfaction is high but user's importance is low. The research result suggests that e-Trade service development would be re-organised as much as user feels the importance of process innovation.

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Development of Continuous Indirect Connectivity Model for Evaluation of Hub Operations at Airport (공항의 허브화 평가를 위한 연속연결성지수모형 개발)

  • Lee, Sang-Yong;Yu, Gwang-Ui;Park, Yong-Hwa
    • Journal of Korean Society of Transportation
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    • v.27 no.4
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    • pp.195-206
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    • 2009
  • The deregulation of aviation markets in Europe and the United Sates had led airlines to reconfigure their networks into hub-and-spoke systems. Recent trends of "Open Skies" in the Asian aviation market are also expected to prompt the reformation of airlines' networks in the region. A significant connectivity index is a crucial tool for airlines and airport authorities to estimate the degree of hub-and-spoke operations. Therefore, this paper suggests a new index, Continuous Indirect Connectivity Index (CICI), for measuring the coordination of airlines' flight schedules, applying it to the Asian, European and the American aviation markets. CICI consists of three components:(i) temporal connectivity to identify the attractiveness between connection flights, (ii) spatial connectivity to differentiate the attractiveness by de-routing distance with continuous linear function, and (iii) relative intensity to reflect the effect of direct flight frequency on transfer routes. CICI is evaluated to examine a casual relationship through regression analyses with two dependent variables of the number of transfer passengers and transfer rates. Compared with Danesi's index and Doganis' index through evaluation processes, CICI has a higher coefficient value of determination, implying that it explains the relationship between connectivity and transfer passengers more precisely.