• 유통과학연구
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• 제11권6호
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• pp.31-40
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• 2013

Purpose - The Northeast Asian Logistic Hub strategy was established to create a national competitive advantage in northeast Asia. Countries in this region are competing fiercely to become the central base distribution port as the volume of container shipping continues to increase due to the northeast Asian (especially Chinese) economic growth. The primary method by which shippers are improving their customer service and distribution is enhancing profits by minimizing call ports on the key route through strategic affiliations and the use of large vessels. Each nation is planning large-scale investments in the construction of sea ports that can accommodate large vessels. This paper proposes ways by which the logistical strategies of domestic corporations can keep pace with changes in government policy concerning the Northeast Asian Business Hub policy. It examines the logistics system in the Northeast Asian region, analyzes the government's Northeast Asian Business Hub policy, and suggests logistical strategies for domestic corporations through an analysis based on a questionnaire designed to grasp domestic firms' needs and goals. Research design, data and methodology - The purpose of this study is to determine how shipping companies establish partnerships with third-party logistics providers and draws out the implications of the results. The survey methods used were personal interviews and questionnaires distributed to a sample population through e-mail, fax, mail, and telephone. A total of 600 questionnaires were distributed, of which 165 were returned. Among these, ten were excluded due to insufficient content; ultimately, 155 were used for the sample. The statistical data collection process was analyzed through data coating and a statistical package program. Results - This study argues that greater flexibility in policies, administration, and systems will be needed to significantly improve established business practices. In this dissertation, we primarily identify that in order to become a center of northeast Asian logistics, Korea must adopt a new paradigm and abandon the existing systems that are based on the economic and social systems that have stemmed from bureaucracy, inflexibility, chauvinism, and equalitarianism. Flexible policies, administration, and systems will be necessary to improve business practices. Domestic corporations must establish a strategic logistics hub and related network while simultaneously pursuing value-added logistics businesses by increasing their manpower and building a logistics information system. This will strengthen their competitive edge and lead to system improvements. Conclusions - Domestic corporations must adopt a new paradigm and use more reasonable business laws, systems, and policies that are based on market-driven flexibility and transparency. Moreover, social norms and regulations should be established to help ensure political and social security. Korea must also develop a culture of tolerance for foreign companies. Finally, the paradigm defining the policy governing the development of the capital city and its satellite cities in this context must be changed.

• 한국항만경제학회지
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• 제40권2호
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• pp.205-219
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• 2024

2000년대 이후 심화된 글로벌 물류허브 선점 경쟁에서 인천광역시가 글로벌 물류 허브도시로 성장하기 위한 차별화된 경쟁요인을 검토할 필요성이 있다. 본 연구에서는 선행연구 및 사례연구를 통해 글로벌 물류 허브도시의 경쟁요인을 도출한 뒤, IPA분석을 통해 인천광역시의 현재 수준을 파악하고 글로벌 물류 허브도시로 성장하기 위한 개선 방향성을 제안하였다. 연구 결과, 글로벌 수준의 물류 인프라 구축과 세계 도시 간의 물류 네트워크 구축은 주요 경쟁력 요인으로 나타났다. 인천광역시는 인천국제공항과 인천항을 중심으로 수도권역을 배후지로 둔 물류 허브도시이나, 콜드체인, 전자상거래 화물 등 특수 화물을 위한 전용 인프라를 통한 신규 화물 창출과 복합운송 시스템 구축으로 글로벌 네트워크 확장은 주요 개선할 점으로 평가되었다. 또한, 스마트화, 친환경화와 관련하여 인천광역시의 준비가 미흡하여 향후 물류 서비스 지원 전문인력을 양성하고 물류 관련 정보 플랫폼의 구축, 물류산업 전반적인 탈탄소화 대응 등의 노력이 요구되었다. 본 연구는 글로벌 물류 허브도시의 경쟁력 요인과 인천광역시의 현 위치를 IPA분석을 통하여 평가하였다는데 연구의 의의가 있으며, 향후 인천광역시의 글로벌 물류 허브도시 전략 수립에 유용한 기초자료로 이용될 수 있을 것으로 기대한다.

• 대한지리학회지
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• 제44권2호
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• pp.187-205
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• 2009

최근 지리학 및 교통 관련 분야에서는 교통 네크워크의 잠재적 손실이 지리 공간상에서 어떠한 영향을 주는가를 살피는 연구가 중요한 주제로 등장하고 있다. 서울의 지하철망은 대규모의 도심 통행을 지지히는 중요한 기반시설이며, 특히 환승역은 그 기능을 상실할 경우 전체 교통망의 신뢰도에 큰 영향을 줄 수 있는 중요한 교통 입지시설이다. 이 논문은 지하철 환승역의 기능 손실이 지하철망의 신뢰도과 대응력에 어떠한 영향을 주는지를 네트워크의 위상학적인 차원, 전체 지리 공간, 그리고 개별 환승역 차원에서 살펴본다. 시뮬레이션을 통한 분석 결과, 서울 지하철망은 상당히 높은수준의 네트워크 신뢰도를 보였으나 환승역 간에는지리적으로 유의미한 변이가 있음을 확인하였다.

• 한국경영과학회지
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• 제22권3호
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• pp.23-36
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• 1997

In the design of telecommunication network, the network configuration using hubbing topology is useful for designing and managing the network efficiently : i. e. all of central offices (COs) are grouped into clusters. Each cluster has one hub consisting of large-scale transmission facilities like digital cross-connect systems and ATMs. In clustering process, the community of interest and geographical factor should be considered. However, there exists a tradeoff between two factors. One is to minimize total link costs for geographical factor and the other is to maximize the total intra-cluster traffics for community of interest. Hence, this can be solved by multiobjective linear programming techniques. In this paper, the problem under considerations is formulated as two p-median subproblems taking into considerations total costs and total intra-traffics, respectively. Then we propose the algorithm to solve the problem based on the concept of cost-traffic tradeoff. The algorithm enables to identify efficient cost-traffic tradeoff pairs. An illustration is also presented.

• 통상정보연구
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• 제9권1호
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• pp.259-274
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• 2007

The paradigm of the global logistics network has been rapidly changing from traditional concept of productivity in cost terms, toward the new characteristics of innovative productivity in terms of economies of scale, economies of scope, and economies of network. As the ship or airplane becomes larger and speedier, the less logistics hub required. The more diverse logistics parties integrate each other horizontally or vertically, the higher synergy effects they get. The more systematic concurrent engineering available for global supply chain management such as Korean manufacturers in China, the higher productivity they get. The paper analyzes these three paradigms of logistics into the application for the Korean manufacturers in China and concludes that the Korean government, the companies in China should be more focused on the governance of the logistics and the intermediary such as the 4th party logistics(4PL) is definitely developed its role and functions based on three paradigms above mentioned.

• 제어로봇시스템학회논문지
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• 제11권8호
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• pp.709-716
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• 2005

As a way to build more efficient and intelligent container cranes for todays hub ports, communication networks are used to interconnect numerous sensors, actuators, controllers, and operator switches and consoles that are spatially distributed over a crane. Various signals such as sensor values and operator's commands are digitized and broadcast on the network instead of using separate wiring cables. This not only makes the design and manufacturing of a crane more efficient, but also easier implementation of intelligent control algorithms. This paper presents the performance evaluation of CAN(Controller Area Network), TTP(Time Triggered Protocol) and Byteflight that can be used for cranes. Through discrete event simulation, several important quantitative performance factors such as the probability of a transmission failure, average system delay (data latency) and maximum system delay have been evaluated.

• Asian Pacific Journal of Cancer Prevention
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• 제16권10호
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• pp.4251-4256
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• 2015

Background: Exposure to cigarette may affect human health and increase risk of a wide range of diseases including pulmonary diseases, such as chronic obstructive pulmonary disease (COPD), asthma, lung fibrosis and lung cancer. However, the molecular mechanisms of pathogenesis induced by cigarettes still remain obscure even with extensive studies. With systemic view, we attempted to identify the specific gene modules that might relate to injury caused by cigarette smoke and identify hub genes for potential therapeutic targets or biomarkers from specific gene modules. Materials and Methods: The dataset GSE18344 was downloaded from the Gene Expression Omnibus (GEO) and divided into mouse cigarette smoke exposure and control groups. Subsequently, weighted gene co-expression network analysis (WGCNA) was used to construct a gene co-expression network for each group and detected specific gene modules of cigarette smoke exposure by comparison. Results: A total of ten specific gene modules were identified only in the cigarette smoke exposure group but not in the control group. Seven hub genes were identified as well, including Fip1l1, Anp32a, Acsl4, Evl, Sdc1, Arap3 and Cd52. Conclusions: Specific gene modules may provide better understanding of molecular mechanisms, and hub genes are potential candidates of therapeutic targets that may possible improve development of novel treatment approaches.

• 건축역사연구
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• 제25권2호
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• pp.7-19
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• 2016

Shenyang was one of the representative transportation hub of Northeast China during the modern period. The formation and development of the railway network gave great influence on Shenyang's city development. In order to understand the relationship between railway and city development, first, we classified Shenyang's city development period by the railway network's formation and expansion process. Then, we analyzed the relationship between railway and city space by five categories. The results of this study are as follows. First, before railway was constructed, Shenyang was a castle city, which also was the economic center of Northeast China. This was the main reason Shenyang was chosen as a railway zone. During the modern period, the castle structure became an obstacle to city transportation and environment, therefore, it was disposed. During the period of railways' expansion, South Manchuria, Jingfeng and Shenhai railway line was constructed in Shenyang. Since each line had different operation organizations, city sites along the railways were planned separately. However, these operation organizations had one common purpose, which was to use railway as an accelerator for economic development. During the period of railway's military usage, railway was reorganized as military supply transport for the Japanese, which also was used as a tool for the expansion of colonialism. Second, after Shenyang's city space was reconstructed along the railway, it created a close connection with city structure, city facilities, landscape and city transportation system. Hence, the railway system played a key role in modern city planning.

• 한국산림과학회지
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• 제104권3호
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• pp.454-465
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• 2015

본 연구는 국내 숲길의 효율적인 운영 관리를 위한 기초자료제공을 목적으로 국내 주요 숲길인 지리산 둘레길과 울진금강소나무 숲길의 이해관계자를 대상으로 숲길 운영관리에 대한 이해관계자 네트워크 특성을 분석하였다. 분석 결과, 지리산둘레길 및 울진금강소나무숲길 모두 행정주도형 네트워크(Council-led network)로 숲길의 조성과 관련된 재원이 행정기관에서 지원되는 구조이기 때문에 운영관리에 있어서도 행정의 권한이 많이 개입되는 특징을 나타냈다. 하지만 이해관계자의 레벨이 다양하고 복잡한 특징에 비해 이해관계자들을 조정하고 관리하는 기능은 전체적으로 부족한 것으로 나타났다. 향후 효율적인 숲길운영관리를 위해서는 이해관계자들과 관계를 맺고 의사결정의 허브역할을 할 수 있는 중심조직체가 필요하며, 이들이 명확한 역할을 수행할 수 있도록 합의형성과 권한부여가 필요하다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2005년도 춘계종합학술대회
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• pp.285-288
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• 2005

신경회로망은 지능제어알고리즘 중의 하나로 학습능력을 가지고 있다. 이러한 학습능력 때문에 많은 분야에서 널리 사용되고 있으나, 지능제어의 단점인 안정도 문제를 수학적으로 증명하기 어렵다는 문제점을 갖고 있다. 본 논문에서는 신경회로망의 한 종류인 RBFN과 적응제어기법을 이용하여 로봇 매니퓰레이터 궤적 제어기를 구성하고 자 한다. 본 논문에서는 RBFN의 파라메터들을 적응제어기법을 이용하여 수학적으로 구하였고, 시스템의 안정도를 수학적으로 UUB를 만족한다는 것을 증명하였다. 그리고 수평다관절로봇 매니퓰레이터 궤적제어기에 적용하였다.