Analysis of the Logistics Patterns of Korea's Free Economic Zones in Northeast Asia and the Implications
The logistics patterns of Korea are analyzed in order to elaborate the strategies of Korean Free Economic Zones (FEZs) in relation to Northeast Asian logistics hubs. As the surface transportation of Korea, China, and Japan is cut off by geographical features and by political borders, this paper confines the scope of analysis to air and maritime transportation. From this analysis in the east Asian region, an attempt is made to understand the cargo flow from and to Korean airports and ports by region and commodity types, thereby identifying the main counterpart regions of trade by commodity and mode. The policy implications for the development strategy of Korean FEZs (Incheon, Busan, and Gwangyang) are described from these analyses.
The Emergence of the Yangtze River Delta and the Responses of Busan and Kaohsiung
Due to its huge growth in container volume from China, the Yangtze River Delta (YRD) has become arguably the most important container-export area in the world. Shanghai, the gateway to the YRD, handles most of the freight cargo. But the nature the YRD river ports has restricted development there, forcing China to build the Yangshan deepwater port to act as the mega-hub for the region. In response to the emergence of the YRD and Yangshan, 2 traditional trans-shipment centers in the region, Busan and Kaohsiung, have implemented strategies in response to the emergence of YRD and Yangshan. This paper analyzes Busan's and Kaohsiung's strategies and aims to predict the development of their ports. Research results show Busan has been more aggressive and ambitious, with little chance that Kaohsiung will become a mega-hub in the region.
Ceramic microwave antennas for mobile applications
Due to their medium to high permittivity values, ceramic microwave materials are attractive as building blocks for miniaturised antenna solutions. Further advantages are low dielectric losses and an excellent temperature stability of standard ceramic materials. Yet, the permittivity of the ceramic material also has a strong influence on the radiation efficiency and bandwidth of the antenna. This implies that in the design process a suitable compromise has to be found between the degree of miniaturisation on the one hand and the antenna efficiency and bandwidth on the other. We describe two approaches towards efficient miniaturised ceramic microwave antennas: the dielectric resonator antenna (DRA) with partial metallisation and the shorting post patch antenna. We focus on design steps taken to ensure both a high degree of miniaturisation and high values of the radiation efficiency, the choice of the ceramic material and the experimental performance of the antennas.