• Advances in aircraft and spacecraft science
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• v.4 no.4
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• pp.487-501
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• 2017

The main purpose of the paper is to analyze effect of geometrical parameters of the reentry capsules such as radius of the spherical cap, shoulder radius, back shell inclination angle and overall length on the flow field characteristics. The numerical simulation with viscous flow past ARD (Atmospheric Reentry Demonstrator), Soyuz (Russian) and OREX (Orbital Reentry EXperimental) reentry capsules for freestream Mach numbers range of 2.0-5.0 is carried out by solving time-dependent, axisymmetric, compressible laminar Navier-Stokes equations. These reentry capsules appear as bell, head light and saucer in shape. The flow field features around the reentry capsules such as bow shock wave, sonic line, expansion fan and recirculating flow region are well captured by the present numerical simulations. A low pressure is observed immediately downstream of the base region of the capsule which can be attributed to fill-up in the growing space between the shock wave and the reentry module. The back shell angle and the radius of the shoulder over the capsule are having a significant effect on the wall pressure distribution. The effects of geometrical parameters of the reentry capsules will useful input for the calculation of ballistic coefficient of the reentry module.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.1566-1573
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• 2007

Urban railway system that leads the urban public transportation enables the passengers to use the subway system safely and conveniently by indicating the destination of, status of approach of and other information on train through Train Destination Equipment(TDE), which is one of the important passenger services. The existing system is composed of Host Station Equipment(HSE) and operator panel that receives necessary input on train information from Total Traffic Control System(TTC), Local Station Equipment(LSE) that controls Train Destination Indicator(TDI) installed at each station, and Train Destination Indicator that ultimately displays train information to the passengers using the train system. This study aims to realize stabilized and reliable announcement system for destination of train by considering processing procedure and method of expression of inputted information of the existing system of notification of announcement of destination of train that can be applied in the RFID, which is the base technology of USN for which service expansion is easy, and to realize system that considers interface with USN and expandability with other facilities in the future.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.13
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• pp.257-281
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• 2000

The world economy is becoming increasingly globalized. The globalization has resulted in far reaching agreements to deepen trade liberalization and enlarge its scope to cover new areas in addition to strengthening its supporting institutional base. Economic growth has developed international trade which has accelerated the development of international carriage of goods in 21st century. The international trade is basically founded on the contract of international sale of goods and backed up by the contract of international carriage of goods and the insurance on the goods carried. It is essential to incorporate each other sections for the efficient development of international trade. As a result of rapid expansion of international carriage of goods, rationalization of transport was required, which has brought about the International Multimodal Transport System through containerization. The approach to liability system will be a right way to solve the insurance problems for the development and enlargement of world trade volume. International multimodal transport system has affected international trade a lot, especially the field of insurance a grate deal. This paper is to analyze contents of liability system on Multimodal Transport with in the UN Convention on International Multimodal Transport of goods.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.20 no.4
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• pp.379-382
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• 1998

The 44 years old man was consulted to our department due to restriction of mouth opening. On radiograph, we found bony expansive lesion at right mandibular ramus and temporal bone that it was suspected malignant tumor. So we had performed incisional bone biopsy at right ramus through skin incision. The result of biopsy was osteosarcoma. Then, he had experienced radiation therapy for the protection of recurrence after several times surgery of nasopharyngeal angiofibroma, 28 years ago. So, we concluded radiation induced osteosarcoma from his radiation therapy history. He had referred to the department of hematooncology because of severe expansion to skull base and was received 4 times chemotherapy with cisplatin and adriamycin, but he was expired just after 4th chemotherapy. Such radiation induced osteosarcoma have relative good prognosis due to rare metastasis from other reports. So if it will early detect from close follow up after radiation therapy, survival rate will rise up. But we missed early detection of our case. So, we report a case of rare radiation induced osteosarcoma. Ly detection of our case.

• Ocean and Polar Research
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• v.32 no.4
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• pp.427-437
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• 2010

The Korean Government is trying to construct an ocean research station in Dokdo's water. The station would be the third ocean research station following the Ieodo station and the Gageocho station. Although the new station would served as a scientific research base for peaceful and academic purposes, the construction of the station will almost certainly lead to a diplomatic dispute between Japan and Korea in the near future due to the disputed ownership of the island. In light of the diplomatic protests against the construction of the Ieodo station by the Chinese Government, various domestic and international legal issues which could be raised regarding the construction of the Dokdo station need to be reviewed. Therefore, this article reviews the international legal status of the station and the rights and duties pertaining to its construction, investigates the domestic legal grounds relating to the construction and operation of the marine scientific installation, evaluates the international legal impacts of the construction on the expansion of maritime jurisdiction, the effective control on Dokdo and the negotiations on maritime boundary delimitation, and finally draws conclusions on the future activities of the Korean Government for the construction and operation of the Dokdo Ocean Research Station.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.13 no.2
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• pp.135-140
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• 1995

As the expansion of metropolis has been going, the role of underground utilities has importantly increased. The existed data is difficulty to acquire accurate data and computerize it. In the construction site, Particularly, the map of existed underground utilities has included so much inaccurate data. This study suggestes that making terrain map and surveying if the position of underground utilities are simultaneously done, also this method improves data accuracy and makes the computerized map such as CAD easy match the map of established underground map. The excution of this study collectes data by surveying of terrain and under ground utilities. Through new data collection, we can plot and acquire the position of real under ground utilities and attribute data about them.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2007.04a
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• pp.9-12
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• 2007

Recently, research and development related to high strength concrete for the high rise and large scale reinforced concrete building has been actively promoted in worldwide by national and private research project. But, it is reported that violent explosive explosion would be happened when it was exposed in fire. In the existed study, a explosion in a reinforced concrete structure looses the organism by the different contraction and expansion of hardened cement paste and aggregate, and causes crack by thermal stress. In case of the Europe, Japan and America, they have studied the explosion for a long time. However it would hardly study the explosion in domestic, So it is needed base on mechanical properties of fire deterioration in high strength concrete. Therefore, this study is intend as an mechanical properties of specimen to high heating by heating and load test machine and $700^{\circ}C$. As a result, it is willing to propose fundamental data for quick and accurate diagnosis of deteriorated concrete structure by fire damage with experiment according to the design high strength concrete.

• Animal cells and systems
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• v.15 no.3
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• pp.243-249
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• 2011

The genetic diversity and population history of the Asian shore crab, Hemigrapsus sanguineus, were investigated with a nucleotide sequence analysis of 536 base pairs (bp) of the mitochondrial cytochrome c oxidase subunit I gene (COI) in 111 samples collected from four populations in Korea and one in Japan. In total, 28 haplotypes were defined by 27 variable nucleotide sites in the COI region examined. The observed haplotypes had a shallow haplotype genealogy and no geographical associations. Most of the populations had high haplotype diversity (0.656-0.788) and low nucleotide diversity (0.00165-0.00244), and significant negative values for Fu's $F_S$, suggesting rapid and recent population growth from an ancestral population and sudden population expansion. The pairwise fixation indices ($F_{ST}$) estimated with the exact test and the migration rates indicate that substantial gene flow occurs among these populations as a result of sea currents, except between the Yellow Sea coast of Korea (BUA) and the Pacific Ocean coast of Japan (JPA). These two populations (BUA and JPA) showed significant genetic differentiation and low migration rate.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.88-97
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• 2015

Consumers' interest in performance art is increasing with the advent of the 'culture era', and there is a need for marketing strategies for market base expansion and research in order to achieve this. Therefore, the aim of this study was to empirically establish the effect of service quality factors perceived by consumers during musical performances on audiences' relationship quality. Research results showed that the quality of the physical environment and of results, i.e. service quality, affected commitment and satisfaction, and quality of interaction had a significant effect on satisfaction. Moreover, commitment and satisfaction with relationship quality had a significant effect on loyalty. This study confirmed which service quality elements were considered important for audiences' commitment and satisfaction when attending musical performances, and thus suggests opportunities to understand audiences' consumer behavior and better improve their relationship quality.

• Journal of Korean Academy of Nursing Administration
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• v.22 no.2
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• pp.129-136
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• 2016

Purpose: The aim of this study was to identify nurses' role in the delivery of health guidance service within the annual health guidance membership service. Methods: Dynamic job analysis process was applied with vertical job analysis and horizontal job analysis through a focus group workshop and expert survey. Results: As a result of this study, job description was established with 4 duties, 11 tasks, 60 task elements. Major duties consisted of 'professional nurse practice', 'coordination and cooperation', 'education and consultation', and 'administrative work and improvement'. A job process map was also framed. Conclusion: The results can be used to establish nurses' role in providing health care service. Ongoing research on nurse's role as a health guider will be a fundamental base for health care service development and will contribute to expansion of common health management services.