• Title/Summary/Keyword: Technical Solutions

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Service Status Analysis About the Spatial Information Open Platform based on the Analysis of Web Server Log and System Log (웹 및 시스템 로그 분석 기반 공간정보 오픈플랫폼 서비스 사용 현황 분석)

  • Jang, Han Sol;Hong, Seong Hun;Kim, Min Soo;Jang, In Sung
    • Spatial Information Research
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    • v.23 no.3
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    • pp.45-54
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    • 2015
  • Since the V-World, the Spatial Information Open Platform service, has started in 2012, a lot of people have increased explosively every year with their interest. It is necessary to know the specific service status in order to serve as indicators of the improvement of user's environment and the service to be added in the future based on the user's increasing need. However, there is difficulty to figure out more specific service status, such as the usage of hardware resources for 2D / 3D / Portal services and the actual user usage patterns, because the current system does not have the real-time monitoring system. Therefore, in this paper, through the analysis of the usage of system resources for 2D / 3D / Portal services based on web server log and the usage of hardware resources such as CPU, Memory based on system log, we analyze the usage of service in 2015 and compare with the results of the 2014, to present problems of the current system and the solutions about the problems.

A Study on Applicability of ODR in the Disputes of Overseas Construction Projects (해외건설공사 분쟁에서 ODR의 적용가능성에 관한 연구)

  • Choi, Myung Kook
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.59
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    • pp.27-57
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    • 2013
  • Traditionally construction has been an industry that favoured ADR over formal litigation due to the complexity of technical issues. However, over the past decade construction arbitration has come under increasing attack for its rising costs and growing delays, and expansion of arbitration processes to the point that those processes are approaching the more complex and formal processes followed to resolve disputes litigation. As a result, parties are looking for new methods of resolving their disputes in a more efficient and economical manner, such as ODR. A review of the history of ODR and the practical applications of ODR in use today lead to the conclusion that the concept of ODR for construction dispute resolution appears to be possible and realistic. The advantages seem to outweigh the disadvantages, especially given the solutions suggested to overcome many of the disadvantages. While ODR may not be a realistic venue for large complex construction cases, it may be just the ideal venue for smaller and simple construction disputes. In conclusion, given the advantages that ODR arbitration does offer, the most realistic use of ODR in the short term would involve disputes consisting of a simple, one-dimensional dispute within which the parties can stipulate to the facts in the case. In such simple disputes ODR may be not only an appropriate vehicle within which the dispute can be resolved; it might be more easily accepted by the parties as the preferred platform for resolution. Hopefully, international institutions of arbitration will be successful in their development of a international standards and platform fir disputes that can be adapted for use in construction and will serve as the first step in developing ways to handle small construction claims, thereby allowing parties to resolve their disputes in a faster and more economical manner.

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Considerable Factors and Disaster/Safety Content Application of Virtual Reality Technology (가상현실 재난안전 콘텐츠 적용 및 고려요소)

  • Chin, Seongah
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.3
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    • pp.91-98
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    • 2020
  • Since disaster-safety accidents cause serious damage to human life and property, preparations and responses have been critically challenged by the country and industry. Recently, the government and industry have recognized its importance and are seeking solutions to the causes of disasters in various ways. If virtual reality technology is actively used, it will be easier to prepare and train for disasters, as the social costs will be reduced. However, academic research on this has not been actively studied. In particular, it seems difficult to seek data that comprehensively analyzes or organizes disaster-safety with virtual reality contents. In this paper, we analyze the current status of domestic and overseas focused on virtual reality disaster/safety contents, examine its characteristics, and point out the direction required for advanced service in the future. To this end, the implications of the numerical data of the accident type have been derived, and the direction of development of public institutions, academic research, and industry have also been investigated. Finally, technical considerations are presented as well.

Test Case Generation of Communication Protocol with Regular Expressions (정규표현식을 이용한 통신 프로토콜의 최소 시험 경로 생성)

  • 김한경
    • Journal of Internet Computing and Services
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    • v.2 no.1
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    • pp.1-11
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    • 2001
  • Though it is proposed to use Petri net or dynamic FSM methods for the generation of test sequences on some specific protocols, those methods ere unavailable on the cases where the protocol allows faults processing or includes paths in looping which cause errors or endless looping by the explosion of states. The determination of test coverage on the protocol software that has been designed and implemented is difficult by the reason of development periods, technical solutions to support and also economical limitations. It is suggested to generate timely protocol software test sequences on the basis of regular expressions covering the functions of protocol. With this regular expression method, the 38 test sequences of Q.2971 protocol has been generated and also minimized the endless looping problem when dynamic test suites are used by simplifying the test path expressions that denotes loops, According to the works, the suggested method is confirmed as simple and easy compare to the other dynamic test sequence generation techniques. Moreover. the method to search an optional test path whether it Is included or not in the regular path expression is reviewed.

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A Study on the Method of GIS Standard Development through Profiling (프로파일링에 의한 지리정보표준 개발방법 연구)

  • Park, Jong-Min;Oh, Se-Woong;Suh, Sang-Hyun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.5 no.4
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    • pp.56-64
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    • 2002
  • In order to establish and promote geographic information activities in controled environment maximizing interoperability and the degree of reusability of geographic information resources scattered in distributed platforms, standardization is recognized as one of the basic solutions essentially being performed at the community level, where intends to align with international standards. This paper describes some technical aspects of standardization needed to build a systematic mechanism of national geographic information standards development, giving approach to conceptual analysis especially directed by ISO(International Organization for Standardization). Following some enumerated benefits for profile based national standard architecture and the brief review from canadian approach we suggest herein a overview of national and community level standardization framework, which identify its primary elements consisting of common basis for standard development mechanism based on profiles.

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An Experimental Study on the Applied Method for Land Suitability Assessment (토지적성평가의 운용방법에 관한 실증적 연구)

  • Kim, Woo-Hyeok;Hwang, Eui-Jin;Ryu, Ji-Hyub
    • Journal of Korean Society for Geospatial Information Science
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    • v.15 no.4
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    • pp.71-79
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    • 2007
  • Land suitability assessment has been enforced by the National Land Planning and Utilization Act since 2003 to prevent urban sprawl and protect natural environment. It assesses developmental, agricultural or preservable suitability of land parcel according to such criteria as soil, location and usability by local governments. Land suitability assessment system (LSAS) has been introduced to prevent cursory development by urban sprawl and to lead a harmonious development with conservation in the non-urban area. However, with the lack of experience and knowledge various problems have been arisen in the operation of this system, raising a question for the improvement of the assessment unit of land. The purpose of this study is to investigate methods of developing land assessment as a sustainable land use management tool. In this study, land suitability assessment has been executed through geographic information systems. On the basis oh the results of analysis, practical and institutional problems are described, and technical and institutional solutions are suggested.

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A Study on the Effect of HMD VR Technology on Design Application: Focusing on 3DEXPERIENCE Platform VR (HMD VR 기술이 디자인 활용에 미치는 영향에 관한 연구: 3DEXPERIENCE 플랫폼의 VR을 중심으로)

  • Lee, Kyoung-Soon;Yoon, Jeong Shick
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.4
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    • pp.49-55
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    • 2020
  • Recently, companies are growing by introducing rational and optimized technology for all processes, including design. In particular, the emergence of ICT-based cloud platforms has given rise to solutions that are equipped with all the necessary business services in corporations and schools, affecting technical education and corporate growth that have not been experienced thus far. The virtual reality technology and convergence of HMD devices utilizing this platform is a new turning point in corporate development. Therefore, this study tested the VR functions used in design based on 3DEXP and HMD VR devices. Second, design utilization and this issue were examined through a survey based on the experimental data. The results showed that 3DEXP and HMD VR technologies are closely related in terms of design utilization and have demonstrated their mediated effects through statistical analysis. Nevertheless, it is not enough to generalize some engineering students as a result of the study. On the other hand, the introduction of HMD VR technology is one of the pillars of education and the implementation of virtual reality technology.

Processing and Pigment Stability of Cooked and Frozen Cockle, Fulvia mutica

  • BAE Tae-Jin;KIM Sung-Woo;CHOI Ok-Soo;KANG Hoon-I;PARK Seong-Min;KIM Kui-Shik
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.29 no.6
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    • pp.849-855
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    • 1996
  • Processing condition and pigment maintenance of cockle, Fulvia mutica were studied. Proximate composition of whole meat was $82.3\%$ moisture, $10.8\%$ crude protein, $0.8\%$ crude lipid, $2.5\%$ carbohydrate and $3.1\%$ crude ash, and that of foot muscle was $80.6\%,\;12.3\%,\;0.3\%,\;2.9\%\;and\;3.3\%$ respectively. When the living cockle was soaked in $2\%$ NaCl solutions, about $90\%$ of silt and mud was removed after 10 hours soaking, and over $92\%$ was removed when the pH was adjusted to 7.5. When the pigment destruction was tested by 40 seconds at $75^{\circ}C,\;80^{\circ}C,\;85^{\circ}C,\;90^{\circ}C\;and\;95^{\circ}C$, retention ratios of pigment in cockle were above $95\%$ at all temperature. Soaking in ethanol for 5 minutes resulted in strong adhesion of pigment to meat. Soaking in seasoning liquid containing $10\%$ soy sauce, $5\%$ wasabi, $5\%$ sugar, $2\%$ vinegar, $2\%$ powdered garlic for 3 minutes was effective for instant processing of cooked and frozen cockle after thawing. After 60 days storage at $-20^{\circ}C$, the contents of moisture, crude lipid, carbohydrate, ash and salinity were not changed so much, and pH and TBA values increased to 6.6 and 0.3 compared with 6.2 and 0.2, respectively, while pigment absorbance at 226 nm was decreased from 2.7 to 2.3. However, in case of 60 days storage at $-45^{\circ}C$, there was no change in these compositions.

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Study of Post-Fire Safe-Shutdown Analysis of a CANDU Main Control Room based on NEI 00-01 Methodology (NEI 방법론을 적용한 중수로 주제어실의 화재안전정지분석에 관한 연구)

  • Kim, In-Hwan;Lim, Heok-Soon;Bae, Yeon-Kyoung
    • Fire Science and Engineering
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    • v.30 no.4
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    • pp.20-26
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    • 2016
  • When the fire takes place in Nuclear Powr Plants(NPPs), the reactor should achieve and maintain safe shut-down conditions and minimize the radioactive material released to the environment. The U.S. Nuclear Regulatory Commission (NRC) has issued numerous generic communications related to fire protection over the past 20 years, after it issued its requirements in the Fire Protection Rule set forth in Title 10, Section 50.48 of the Code of Federal Regulations (10 CFR 50.48) and Appendix R to the 10 CFR 50. The and Nuclear Energy Institute (NEI) has developed a Methodology for Risk Informed Fire Safe-Shutdown Analysis, which is related to the Deterministic Method for Multiple Spurious Operations solutions. The aim of this study was to identify, achieve, and maintain Post-Fire Safe-Shutdown of the Main Control Room (MCR) of the CANDU reactor, even though one train of the multiple Safety Structures, Systems, and Components (SCCs) fail by the technical specification and analysis method.

Effects of Restricted Oxygen, Nitric oxide, and Mercuric Chloride on the Seed Germination and Early Elongation Growth of Rice

  • Yang Woon-Ho;Kim Je-Kyu;Smucker Alvin J.M.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.4
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    • pp.287-294
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    • 2006
  • Germination and early elongation of rice after germination were investigated in anoxic air treatment, nitric oxide gas treatment, and six concentrations of mercuric chloride solutions to determine the effects of limited oxygen environment, nitric oxide, and inhibited water flux through cell membrane in $17^{\circ}C$. Anoxic air treatment affected germination of tested six varieties very little. However root elongation rates were severely inhibited while shoot growth was affected less. Reductions in shoot and root elongations demonstrated genotypic variations. Nitric oxide delayed the germination of rice even though it didn't affect the final percent germination. Elongations of root and shoot were inhibited in nitric oxide treatment. The inhibitor effect of nitric oxide on the shoot elongation of rice was less severe, while nitric oxide completely inhibited the root emergence of rice. Concentrations of $HgCl_2$ greater than $300{\mu}M$ dramatically reduced the rate and percentage of germination when compared to distilled water treatment. The reduced percent germination showed the greatest variation among rice varieties in $500{\mu}M$ solution of mercuric chloride. Ansanbyeo, Jinheung, and Odaebyeo were affected less by $HgCl_2$, Nonganbyeo and Sangmibyeo were intermediate, and the germination of Andabyeo was greatly reduced by $HgCl_2$. Root elongation of germinated rice seedlings was more sensitive to oxygen deficits, nitric oxide, and $HgCl_2$ treatments than germination and shoot elongation. In conclusion, poor seedling establishment of rice sown in flooded paddy soils, in which the oxygen supply to the seeds is restricted, appears to the result of limited root elongation rate.