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        검색결과 22

        21.
        1998.06 KCI 등재 서비스 종료(열람 제한)
        The structure such as building and cultural properties was composed of various materials like wood, metal and stone that have been utilized and exposed to air, wind and rain for a long time. However, because of their special characteristics as structure, collecting of samples that may involve their destruction cannot be permitted, ever for material analysis. Therefore, in order to study the influence of atmospheric pollution on structure, atmospheric corrosion tests were achieved by making use of materials(bronze, ancient copper, copper, steel and marble) in field exposure tests. Atmospheric exposure sites are selected from places which are characterized by urban, rural, industrial and marine environments in Northeast Asia. According to the results of atmospheric corrosion tests; The corrosion rates of industrial sites in china were more serious than other sampling sites. In the correlation of meteorological factors, wet hours was defined as integrated hours under that atmospheric temperature is above O℃ and relative humidity in above 80% that has a great influence on corrosion tests of materials in case of a short time. The relative humidity was above about 75% that resulted in great increase of corrosion rates. In the esimation of corrosion rates between materials, corrosion rates of steel was about thirty times and decuple larger than that of other materials excluding marble in unshelterd exposure and in sheltered exposure.
        22.
        1998 서비스 종료(열람 제한)
        This paper aims to suggest the strategies for Korea port, especially Busan to develope into a viable transshipment center and/or Hub port as the articulation points between mainline and feeder nets. To tackle this goal, the authors clarify the requirements for Korea port which will be critical in determining its position as Hub through the careful analysis on competitiveness, environmental impact, port policy and capacity, transshipment traffic and inherent ability to generate traffic. The results are summerized as follows. (1) Coping with increasing container volumes, new investment is sustainedly necessary to increase the capacity and inherent ability of container port and create economies of scale. Moreover, increasing port capacity will increase the potential for the Korea port's inclusion into mainline rather than feeder networks. (2) Considering an increasing awareness of need for customer-oriented operations and service quality rather than simply a reliance on infrastructure-led efficiency, privatization of one sort or another and corporation of port have been key strategies in achieving greater efficiency in Korea containerport.
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