• Korean Journal of Environment and Ecology
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• v.24 no.3
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• pp.302-317
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• 2010

In this study, not only to present the management plan but also to verify the effectiveness for a area of improving the landscape and the area of creating the base of bio-inhabitation in Tancheon stream concrete embankment where were practised the vegetation-mat measures for greening via monitoring i.e. restoration progress. The results of monitoring, there were a total of 41 taxa, 18 families, 38 species, 3 varieties in 2006, moreover in the 2007, there were a total of 59 taxa, 19 families, 56 species, 3 varieties and in the period 2008, 64 taxa, 29 families, 59 species, 8 varieties. Therefore, these site has increased the plant spaces year by year. The distribution of vegetation characteristics shows that Miscanthus sacchariflorus and Pennisetum alopecuroides expands their influence in the area of applying the construction method. Those area appears a diversity of native species by the stream deposition at the flood. Thus, its condition is very soundly ecological health and eco-friend. At present, native species have been dominant, however, disturbed species and invasive species can be expected to increase dramatically in the future. Therefore, it is necessary to a long-range monitoring and management for maintaining an environmentally sound aquatic ecosystem. On this area refer to mix the river vegetation of primary succession and disturbed vegetation. For that reason, the method of constructing the vegetation-mat measures for greening in embankment does not need to remove the concrete and can install a coir-mat on the top. It leads to improve the landscape, moreover, it was analysed the such dramatic changes in the vegetation species richness by providing continuous the plant growth basis have a impact on in bio-diversity.

• Journal of the Korean Geographical Society
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• v.47 no.2
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• pp.226-244
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• 2012

This paper aims to analyze the process of the evolution of Gumi electronics industrial cluster and to understand the role of governments for local industrial dynamics. Gumi was a typical satellite platform type new industrial district up to mid-1990s. At that time, Gumi industrial park was the agglomeration of branch plants headquartered in Capital Region with weak local linkages. During the last two decades, however, Gumi has evolved to an electronics industrial cluster with considerable local interfirm linkages and innovation activities of SMEs. Recognizing government industrial policies is critical in understanding the process of the evolution of Gumi electronics cluster. At the early stage, the state was the developer and locator of business activities within the confines of the Gumi industrial park. In recent years, central government's innovative cluster policy contributed to strengthening networks among firms, universities, and research centers to form local innovation networks as well as networks between large branch plants and SMEs. Gumi city and Gyungsangbuk-do promoted innovative activities of SMEs through the supports of cooperative networks between universities and SMEs. The increasing roles of SMEs and local governments in addition to the large branch plants and the central government have become the basis of the evolution of industrial cluster in Gumi.

• Journal of the Economic Geographical Society of Korea
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• v.1 no.2
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• pp.43-70
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• 1998

The purpose of this study is to analyze the locational characteristics and viabilities of township enterprises in Yan bian korean ethnic autonomous district. From the late of 1970s, Chinese township enterprises have heavily contributed to the rapid economic development in China, to alleviating the rural, surplus labor, and to reducing the dispa rity between urban and rural in term of socio-economic condition. From the late 1980s Chinese township enterprises in Yan bian korean ethnic autonomous district have rapidly developed in urban areas and also in the places that were easily accessed into main cities. The locational characteristics implied the management characteristics that attempted to solve the lack of capital and technique, and marketing difficulties through the existed firms in urban areas rather than the accessibility of the market. Chinese township enterprises in Yan bian korean ethnic autonomous district utilized locally available low wage labors of legal agrarian(nung-min-gung) to compete the large firms in urban areas. Township governments positively affected the development of the enterprise in the early stage: while, in the latter stage, they limited the autonomous management. If the economic ,system in China would be changed into the capital in the future, the institution should at low to the maximum autonomous management of township enterprises.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.1
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• pp.745-752
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• 2020

The purpose of this study is to analyze the development progress of Pacific Park (formerly Atlantic Yard) in Brooklyn, New York City. Along with the Hudson Yards Development in Manhattan, Pacific Park is one of New York City's leading large-scale urban development projects using space right above an existing railway and has attracted worldwide attention. With the resurgence of large-scale development, its advanced form has received social attention. In particular, the development was evaluated as an exemplary development using the Community Benefits Agreement, which benefits local residents. Unfortunately, due to various difficulties, the development has been struggling from delays and changes away from the early stages, which have also caused social concerns and criticism. In this regard, this study examines the development through the process and the public sector's responses to the risk-inducing factors and reactions. The theoretical background of the US urban redevelopment is examined, and the specific changes and major contents of the project are analyzed. The following implications were drawn based on changes and responses in the development process: 1) securing the flexibility and mandatoryness of developers, 2) comprehensive control of the development site, 3) communication with and responding to the public, 4) securing additional financial resources, and 5) verification of new technologies.

• Korean Journal of Construction Engineering and Management
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• v.17 no.1
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• pp.10-17
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• 2016

Domestic CM market has continued to grow since the enactment of CM policies in 1996. In addition, future CM market is forecasted to have potential high growth. Therefore, it is necessary to apply various CM business models reflecting the owner's requirements and characteristics in order to improve in the CM industry and to strengthen the competitiveness in the overseas construction market. In this context, the purpose of this study is to suggest strategies of various CM applications based on comparison of 4 cases analyzed by 'business weight' and 'business depth' in terms of business function as well as by the types of 'CM market' and 'CM practice'. Result of this comparative analysis shows that each case presents differences in terms of type, business weight, and business depth of CM practice. However, domestic public CM services are currently being challenged to strengthen capability throughout the project life-cycle against the limitation of government's CM policies focused on the construction supervision. In order to address this problem, this study proposes the strategies of various CM applciations from several different perspectives

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.8
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• pp.684-690
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• 2016

Cities are not built simply for amusement, but to tackle external factors faced by societies and built based on theoretical arguments. In order to construct a city and develop it, we have to understand the grounds and reasons for doing so, and have to think through how to build a city that corresponds with what contemporary societies are looking for. Therefore, this study identifies the philosophical implications by reviewing theories and compares these implications with the Urban Charters, in order to propose processes of change for the philosophy of city construction. As a result, it was found that cities are based on ideas that correspond to the common values of the era, within a frame of areas and relationships, under complicated sociological, economical and humanities environments. The results are supported through case studies of urban areas, buildings and facilities in the Administrative City in Korea. This study is meaningful because it establishes philosophies of city construction by comparing and analyzing their charters with the sociological phenomena in the 20th century, and because its research target is the Administrative City to which the philosophy of the 21st century's has been applied since the beginning of the construction. We have to take different points of view corresponding to the changes and development of cities.

• Land and Housing Review
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• v.2 no.1
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• pp.19-33
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• 2011

This study considers sustainability in new town development projects in the Tokyo metropolitan area. Since the mid-1980's the purpose of new Town projects in Japan changed from encouraging residential development to sustaining self-sufficiency within multi-functional cities. Nevertheless simultaneous increases in elderly population and declines in general population became the new town's key issue. Is this trend a general phenomenon in Tokyo? Has the multi-functional city policy failed? What policies can encourage new town self-sufficiency? Judging from this research, the new towns of Tokyo are relatively young areas with low aging rates and low rates of population decrease. Nevertheless, in view of the multi-functional city plan, levels of self-sufficiency and social-mix in most new towns are inadequate. Considering these, this research recommends new town plans be required to consider surrounding industries and the accessibility form CBD to encourage self-sufficiency. Moreover, The social mix plan encouraging residential diversity is important to the sustainability of the new town.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.197-201
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• 2008

Conceptual cost estimates for domestic highway projects have generally been conducted using governmental unit-price references. Inaccuracies in governmental unit-price data has repeatedly addressed in the Korean construction industry which often lead to poor decision making and cost management practices. Thus, needs for developing a better way of conceptual cost estimating has been widely recognized. This research is considered as the first step in developing such model using real-world cost data based on actual construction activities. The data analyzed in this paper includes 41 P.S.C (Prestressed Concrete) Box bridges which broke into 4 categories based on construction methods such as I.L.M(Incremental Launching Method), M.S.S(Movable Scaffolding System), F.S.M(Full Staging Method), and F.C.M(Free Cantilever Method). Actual design documents; including actual cost estimating documents, drawings and specifications were carefully reviewed to effectively break down cost structures for PSC girder bridges. Among more than 40 cost categories for each P.S.C girder bridge type, 7 of them were identified which accounted for more than 95% of total construction cost (ILM: 99.47%, MSS: 99.22%, FSM: 98.18%, and FCM: 98.12%). In order to validate the clustering of cost categories, the variation of each cost category has been investigated which resulted in between -1.16 % and 0.59%.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.29 no.6
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• pp.555-562
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• 2016

Seismic design of braced frames that simultaneously considers economic issues and structural performance represents a rather complicated engineering problem, and therefore, a systematic and well-established methodology is needed. This study proposes a multi-objective seismic design method for an inverted V-braced frame with suspended zipper struts that uses the non-dominated sorting genetic algorithm-II(NSGA-II). The structural weight and the maximum inter-story drift ratio as the objective functions are simultaneously minimized to optimize the cost and seismic performance of the structure. To investigate which of strength- and performance-based design criteria for braced frames is the critical design condition, the constraint conditions on the two design methods are simultaneously considered (i.e. the constraint conditions based on the strength and plastic deformation of members). The linear static analysis method and the nonlinear static analysis method are adopted to check the strength- and plastic deformation-based design constraints, respectively. The proposed optimal method are applied to three- and six-story steel frame examples, and the solutions improved for the considered objective functions were found.

• Journal of the Korean Institute of Gas
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• v.19 no.2
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• pp.54-65
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• 2015

China holding the world largest shale resources, has been trying to develop their domestic shale gas fields mainly with its NOCs. Chinese shale industry looks likely to have high potential to grow in the future, considering the eager support of Chinese government and the rapid development of relevant technologies by NOCs. However, there are opposite opinions as well that Chinese shale gas could not play a positive short-term results because of the complexity of structural geology, inadequacy of water resources and related infrastructure. Recently, Korean companies began to be interseted in Chinese shale gas industry, because of the special relationships with Korean industries in terms of geographic proximity and better opportunities due to the early phase of shale gas business in China. In this study, it was tried to help those companies looking out of future Chinese shale gas industry that surveying current status and problems of Chinese shale gas industry and relevant industries and investigating some trials and policies driven by China government. As a result, the various and long-term problems in Chinese shale development were reviewed and the active supports and polices of Chinese government, NOC's trials for establishments of their independent technologies and the cooperation with foreign companies or M&As were also investigated.