• Journal of the Korea institute for structural maintenance and inspection
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• v.15 no.4
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• pp.136-145
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• 2011

For a massive project related to building national industrial complexes on a soft ground applied to PVD after dredging and hydraulic fill, laboratory tests were carried out using undisturbed sample taken from various depth. Piezocone penetration and dissipation tests were carried out to assess horizontal coefficient of consolidation and initial stress in field. The ground consists of upper dredged fill and lower original clay layer having both similar marine clays. It should be, however, considered as multi-layered soft ground having different initial void ratio, initial water content, initial effective stress, and permeability and compressibility with directions. To assess initial stress of those soft layers in which have different stress history related to consolidation, CPTu test results, especially excess pore water pressure, were analyzed. It allows to find out distribution of excess pore water pressure and initial stress inner original clay layer.

• Journal of Convergence Society for SMB
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• v.3 no.1
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• pp.49-55
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• 2013

This study is for preparation a solution develop small suppliers. For this goal survey for the buyers, agents, supplier's situation and difficulties, policy and support systems. And After benchmark the other's countries, develop government policy, suppoet systems. As a results, the support must be made for public organization, small suppliers. The Response direction must be made for agents and private buyers. At the point of support systems, public organizations must implement the purchase systems and provide the verified informations of suppliers. And it's necessary to educate marketing and sales solutions. At the point of Response directions, it's necessary to make a standard for supply replaced MRO. And the beginning positioning directions of MRO-mall is needed to stress the differentials with private suppliers.

• Korean Journal of Remote Sensing
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• v.22 no.6
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• pp.601-612
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• 2006

This study proposes RAG (Region Adjancency Graph)-based image segmentation for large imagery in remote sensing. The proposed algorithm uses CN-chain linking for computational efficiency and multi-window operation of sliding structure for memory efficiency. Region-merging due to RAG is a process to find an edge of the best merge and update the graph according to the merge. The CN-chain linking constructs a chain of the closest neighbors and finds the edge for merging two adjacent regions. It makes the computation time increase as much as an exact multiple in the increasement of image size. An RNV (Regional Neighbor Vector) is used to update the RAG according to the change in image configuration due to merging at each step. The analysis of large images requires an enormous amount of computational memory. The proposed sliding multi-window operation with horizontal structure considerably the memory capacity required for the analysis and then make it possible to apply the RAG-based segmentation for very large images. In this study, the proposed algorithm has been extensively evaluated using simulated images and the results have shown its potentiality for the application of remotely-sensed imagery.

• Journal of Korea Port Economic Association
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• v.38 no.2
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• pp.165-183
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• 2022

The main purpose of this paper is to present a competitive strategies for the Logistics Warehouses of Busan New Port. Based on the survey conducted by the Logistics Warehouses of Busan New Port experts, the categorized factors were compared using the analytic hierarchy process (AHP) to assess the importance of each factor and sub-factor in the case of the Logistics Warehouses of Busan New Port. This is a quantitative study that conducted a face-to-face survey on employees and related public officers at the Logistics Warehouses of Busan New Port. The final sample size consisted of 49 people, including workers at the Busan New Port logistics warehouses and related local customs officers. The data were coded in Microsoft Excel and the imprtance of SWOT factors was derived using "the I make it" program developed by Decision Sience, and it was analyzed using the AHP method. This study quantifies the importance of the strengths, weaknesses, opportunities, and threats factor of the Logistics Warehouses of Busan New Port and presents strategic guidelines for the key factors for the development of the Logistics Warehouses of Busan New Port. This research provides strategic guidelines to Korea for the development of the Logistics Industries, and development of the Logistics Warehouses of Busan New Port.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.3
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• pp.387-396
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• 2023

The representative equipments currently used for weather observations are meteorological masters and wind lidars. According to international regulations, meteorological masters can be used for standalone measurements, but in case of wind lidars, it is mandatory to install a meteorological master that matches the height of the bottom of the wind turbine blade or a 40m meteorological masters and correct the measurement data. Turbulence flow occurs frequently at altitudes below 100m due to its nature, and wind lidars are more susceptible to the effects of turbulence than meteorological masters. However, while the turbulence intensity for meteorological masters is specified by international regulations, there is no separated specification for wind lidars. This study collected data measured under the same conditions using both meteorological masters and wind LiDARs, analyzed the uncertainties and turbulence intensity ratio. The analysis of the data showed that there were partial sections where the proportion of turbulent flow intensity exceeded 3%. Therefore, it is suggested to include a specification for the turbulence intensity error rate for wind LiDARs in the international regulations.

• Journal of the Korean Association of Geographic Information Studies
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• v.25 no.4
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• pp.81-93
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• 2022

There are many natural hot springs and mineral springs as well as the cultural heritage of the three kingdoms period in the Geum River basin including Chungcheong region. No specific regeneration and publicity plans for deteriorated facilities in this area has been presented. This study aims to suggest promising hot spots and complex water culture belt in the Chungcheong region and Geum River basin through the spatial interpretation of resources. The northern part of the Geum River basin is expected to become a therapeutic spring belt with many hot springs and CO₂-rich springs. In the central and southern parts of the Geum River basin, it is considered that it will be possible to promote convergence publicity by using groundwater resources and cultural assets.

• Journal of the Korean Geographical Society
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• v.31 no.2
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• pp.160-197
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• 1996

The purpose of this study is to review research trends and issues of economic geography in Korea for the last fifty years by sub-fields of agricultural geography, industrial geography, commercial and service geography, and transportation geography. Research in Korean economic geography has progressed significantly in terms of the scope and the number of papers published during the last a half a century. Agricultural geography was a leading field of economic geography in Korea before mid-1970s. Since the mid-1970s, however, agricultural geography has turned over the leading role in economic geography to industrial geography. Classification and structure of agricultural region has been the most popular research theme in Korea, even though diverse topics has been dealt in the research of agricultulal geography in Korea during the last fifty years. In recent years, emphasis is given to study on the dynamics of agricultural region and regional differentiation of part-time farming. It is suggested that the future issues of research in agricultural geography in Korea are agricultural restructuring and changes in agricultural space under the WTO system, changes in rural area and agricultural region with the progress of informatization, changes in agricultural structures and rural society by the increase of part-time farming, governments agricultulal policy and its impacts, competitive advantages of Korean agricultulal products, and environmental impacts of agricultural restructuring. Research in industrial geography has remarkably progressed since the 1980s. Locational changes, regional industrial structure and formation of industrial region were the major topics of interest in the research of industrial geography in Korea before 1980. Since the early 1980s, in addition to the topics which were interested in before 1980, changes of industrial organization and industrial location, changes of production systems and industrial space development of high technology industries and science parks, industrial restructuring and regional economy, foreign direct investments, industrial linkages and industrial districts, and industrial policy and regional development have been the major research themes of industrial geography in Korea. Considerable number of papers has been published both in Korean journals and in foreign journals during this period. Considering global changes in the organization of industrial space, future research should be more focused on firms strategy for regaining competitive advantages, local and global perspectives of industry, industry and environmental changes, in addition to the topics which have been dealt in recent years. Research in commercial and service geography and transportation geography was negligible in Korea before the late 1970s. These two sub-fields in economic geography have begun to develop since 1980s. Periodic markets, structure of commercial area, and distribution of products were the major topics of interest in the 1980s in the commercial and service geography in Korea. In the 1990s, however reserch in producer services has been active with growth of producer services in Korean economy. It is suggested that regional changes with progress of informatization and technology, changes of international trade and regional changes, development of efficient distribution system, role of producer services in regional development, and network of producer services are the major issues to be studied in the future in the field of commercial and service geography in Korea. Commuting, distribution of products, and transportation networks have been the major topics of research in transportation geography in Korea. Diverse quantitative techniques have been applied in the most of the researches in transportation geography. It is required that future studies in transportation geography should also focus on societal and behavioral issues, policy issues regional impacts of new transportation facilities, an analysis of transportation system at the global or international level. Since the 1980s economic geography in Korea has considerably progressed with publication of papers and books. The progress can be regarded as successful in quantitative aspect, but not in quantitative aspects. For the development of Korean economic geography in both quantitative and qualitative aspects, it is necessary to promote international collaborative researches and interdisciplinary cooperations. Attention should also be given to the research on changes in competitive advantages and economic restructuring, changes of economic space with the development of high technology and the progress of informatization. economic development and culture. and foreign regional studies.

• Journal of the Economic Geographical Society of Korea
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• v.1 no.1
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• pp.173-191
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• 1998

The Purpose of this study is to Present the tourism development Plan of Muan County in relation to the establishment of the Muau international Airport. This study criticizes the stereotypical tourism development plans carried out by numerous loyal self-governments. The highest purpose of tourism is to create an experience that cannot be had In a Person's daily life. Tourism development in Muan must be loyal to this philosophy of tourism. This study raises three key questions: What is the nature of tourism\ulcorner; For whom is tourism developed\ulcorner , Why is tourism being developed\ulcorner The answers to the three key questions are very basic ones. but are not being fulfilled in the tourism development of Korea, as fellows. Firstly, tourism development should be carried out to strengthen the special characteristics of tourism resources. Secondly, tourism development should encourage the participation of local residents within the Process, and it should be helpful to the local industry and the resident's income. lastly, the development should refrain from relying heavily on money-making businesses but seek to enrich the lives of visitors and hosts together. This study presents five distinctive tourism development schemes for Muan. They are as follows: the establishment of a scenic byway leading to the Airport: the development of Hoeshan lotus reservoir as a tourist resort for Buddhists and as a traditional health care center: the utilization of the .Japanese military airport relics as an historical and cultural tourist attraction: the establishment of a salt-water spa complex: and the vitalization of agricultural tourism by utilizing the advantage of the Muan international Airport.

• The Journal of the Korea Contents Association
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• v.20 no.2
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• pp.82-95
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• 2020

This study takes the identity and characteristics of public art in historical and cultural regions as the research object. Through the theoretical investigation and research on the public art of historical and cultural regions, six evaluation factors that shape spatial identity and characteristics were drawn: Environmental characteristics, public characteristics; Symbolic characteristics; Artistic characteristics;.Historical characteristics; Interactivity. The identity and characteristics of Taoxichuan public art in Jingdezhen was analyzed and evaluated. The results show that the " public art " of seven large chimneys is consistent with the historical structure of the industry. Among them, environmental, public characteristics, symbolic, artistic and historical characteristics of the Industria park have a high degree of preservation value and can be recognized as the historical landmark of the park. In the new public art, the artistic quality of public art, the environment, and the public characteristic of public art, are also at a moderate level, but it is comparatively weak. Public art recreated as an industrial heritage has formed an identity that can communicate spiritual sympathy to the public by forming a time-space communication between the public with historical relics and ceramic elements, and the new public art for local rehabilitation has given new artistic flavor to the city, but the new identity has not been shown.

• Journal of Environmental Health Sciences
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• v.47 no.4
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• pp.366-377
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• 2021

Background: Polycyclic aromatic hydrocarbons (PAHs) are generated in petrochemical complexes, can spread to residential areas and affect the health of residents. Although harmful PAHs are mainly present in particle phase, gas phase PAHs can generate stronger toxic substances through photochemical reaction. Therefore, the risk assessment for PAHs around the petrochemical complex should consider both particle and gas phase concentrations. Objectives: This study aimed to investigate the concentration characteristics of particle and gas phase PAHs by season in residential areas around petrochemical complexes, and to assess the risk of PAHs. Methods: Samples were collected for 7 days by seasons in 2014~2015 using a high volume air sampler. Particle and gas phase PAHs were sampled using quartz filter and polyurethane foam, respectively, analyzed by GC-MS. Chronic toxicity and probabilistic risk assessment were performed on 14 PAHs. For chronic toxicity risk assessment, inhalation unit risk was used. Monte-Carlo simulation was performed for probabilistic risk assessment using the mean and standard deviation of measured PAHs. Results: The concentration of particle total PAHs was highest in autumn. The gas phase concentration was highest in autumn. The average gas phase distribution ratio of low molecular weight PAHs composed of 2~3 benzene rings was 85%. The average of the medium molecular weight composed of 4 benzene rings was 53%, and the average of the high molecular weight composed of 5 or more benzene rings was 9%. In the chronic toxicity risk assessment, 7 of the 14 PAHs exceeded the excess carcinogenic risk of 1.00×10^-6. In the Monte-Carlo simulation, Benzo[a]pyrene had the highest probability of exceeding 1.00×10^-6, which was 100%. Conclusions: The concentration of PAHs in the residential area around the petrochemical complex exceeded the standard, and the excess carcinogenic risk was evaluated to be high. Therefore, it is necessary to manage the air environment around the petrochemical complex.