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Mobile Edge Computing based Building Disaster Alert System Implementation (Mobile Edge Computing을 활용한 건물 재난 알림 시스템 구축 방안)

  • Ha, Taeyoung;Kim, Jungsung;Chung, Jong-Moon
    • Journal of Internet Computing and Services
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    • v.18 no.4
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    • pp.35-42
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    • 2017
  • In this paper, a building disaster notification system with MEC (Mobile Edge Computing) technology is proposed, which informs people in a building about the disaster. The overview of MEC is presented, and the structure and characteristics of network using MEC are described. In addition, the characteristics of a enterprise integration pattern based Apache Camel is described, and how to implement MEC with Apache Camel is presented. Finally, an implementation method of building disaster notification system with Apache Camel based MEC is proposed to quickly recognize disasters through sensors and to rapidly evacuate people from buildings.

Evaluation of Site Specific Ground Response (부지 고유의 지반 거동평가)

  • 김동수;이진선;윤종구
    • Journal of the Earthquake Engineering Society of Korea
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    • v.3 no.4
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    • pp.1-10
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    • 1999
  • Free-field ground motion during earthquake is significantly affected by the local site conditions and it is essential for the seismic design to perform the site specific ground response analysis. In this paper, the procedures of site specific ground response analysis were suggested based on the Korean seismic guideline and the review of state of the art technologies. The concept of ground response analysis was introduced, and the techniques of obtaining soil data for one dimensional equivalent linear analysis which include site investigation planning, field and laboratory testing techniques, deformational characteristics of soils at small to large strains, and site characterization techniques combining field and laboratory test results, were suggested. Finally, the case study was performed at Inchon area following the suggested procedure.

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A Study on the Development of Information Systems for Digital Contents Based on Standard Digital Identifier(SDI) (식별체계기반 디지털콘텐츠 유통체제 구축방안 연구)

  • Seok, Jung-Ho
    • Journal of the Korean Society for information Management
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    • v.20 no.4 s.50
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    • pp.195-210
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    • 2003
  • With the rapid development of information technology and internet in these days, resources of knowledge information have been digitalized and distributed on the internet, However, the location of digital content and a change of content have generated problems for users access and services. In line with this regard, the research on the identification of digital content utilizing standardized identification system and distribution system is necessary. This study intends to contribute to the implementation of information system based on standard digital identifier for the effective management and safe distribution of digital contents. This study first tries to survey SDI outline, practical application case and distributed business model and to analyze information distribution status Finally, this study tries to draw up a plan for the establishment of KISTI's SDI. content identification system, content distribution system.

The Technological Concept of Fibroscan and its Clinical Usefulness in the Traditional Korean Medical Field (비침습적 간섬유화 측정기(Fibroscan)의 기술적 개요와 한의임상적 유용성 고찰)

  • Son, Chang-gue
    • The Journal of Internal Korean Medicine
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    • v.36 no.2
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    • pp.85-92
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    • 2015
  • Objectives: The liver fibroscan has been developed as a noninvasive and convenient method to assess hepatic fibrosis. This study aimed to review this device in terms of its technological concept and clinical application in traditional Korean medicine (TKM). Methods: The technological background, diagnostic evaluation, and clinical usefulness of fibroscan were reviewed using various literature and clinical studies. One clinical example-a patient with hepatofibrosis who had been treated with TKM-is presented. Results: The liver fibroscan was approved as a medical device for noninvasive measurement of the hepatic fibrosis level by the Korean Food and Drug Administration (KFDA). Numerous clinical studies have confirmed that its sensitivity and specificity allow it to serve as a substitute for liver biopsy, the present gold standard diagnostic method. The accuracy and reproducibility and lack of technical risks are strong points of the fibroscan; however, it has some limitations for application, especially in patients with obesity or severe hepatitis. One clinical example showed the applicability of the liver fibroscan in herbal medicine-based treatments. Conclusions: The requirement for diagnostic medical devices is an important issue in TKM; therefore, this study provides valuable information for practitioners of TKM.

Development for Qualification Item of Electronic Commerce in National Technology Qualification (전자상거래관리사 직무분석에 관한 연구)

  • Hwang Seok-Hae;Cho Jeong-Yoon;Kim Duk-Ki;Park Jong-Sung
    • Journal of Engineering Education Research
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    • v.4 no.2
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    • pp.45-56
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    • 2001
  • This paper is aimed to design for qualification structure and contents of Electronic Commerce Manager which was executed in the second half year of the 2000. To obtain research object. An analysis about e-business law was studied. Also experts of education and related field performed job analysis, on the basis of this study qualification structure and contents of Electronic Commerce Manager was designed and suggestions are proposed for the substantiality and activity. This research is performed through literature review, expert association, interview, and job analysis.

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Seismic Moment Tensor and Its Inversion : An Overview (지진모멘트 Tensor와 전환 : 개요)

  • 김소구;우종량
    • The Journal of Engineering Geology
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    • v.5 no.2
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    • pp.215-231
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    • 1995
  • The key concepts of seismic moment tensor are introduced in a 'physicist - oriented' style. The theory and application of seismic moment tensor which have been developed since the 1970s have become one of the most important branches in modern seismology. The description of earthquake sources in the modern seismology have led to much deeper understanding of the physics of indigenous earthquakes as well as various kinds of artificial seismic events, such as underground explosions, mining rockbursts, and reservoir induced tremors. Furthermore, with the development of digital seismological observation, some concepts, which were not included in 'classical' seismology, or not so important in 'classical' seismology, has become more and more important. It seems that it has been the time to have a new look at the fundamentals of seismology as a branch of applied physics, especially the part dealing with the physics of earthquake sources. Also in this field it may be important to clarify some fundamental concepts which, unexpectedly, have caused confusions even among professionals.

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KSLV-I 발사 시뮬레이션시스템 개념설계 및 실시간 데이터 처리 시험평가

  • Seo, Jin-Ho;Hong, Il-Hee;Lee, Young-Ho;Chung, Eui-Seung;Cho, Gwang-Rae
    • Aerospace Engineering and Technology
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    • v.3 no.1
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    • pp.222-231
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    • 2004
  • LCS(Launch Control System) in Space Center performs the ground and flight tests of launch vehicle. Those tests require data monitoring and control functions to the external systems such as launch vehicle, launch pad, and propellant supply system, etc. The LCS is composed of real time control system, simulation system, data server, external network, etc. The purpose of the simulation system is to simulate launch vehicle, and it is used for evaluation test of the LCS. This paper described the simulation system overview, the concept design, and the real time data processing evaluation tests of the simulator, gateway, data distribution server which are constituents of the simulation system.

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Transportation of KSLV-I FM unit 2 VEB Assembly (KSLV-I 발사2호기 VEB 조합체 이송)

  • Choi, Sang-Hyeon;Park, Jong-Chan;Won, You-Jin;Lee, Soo-Jin;Chung, Eui-Seung
    • Aerospace Engineering and Technology
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    • v.10 no.1
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    • pp.20-29
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    • 2011
  • There are a lot of electrical and electronic components and pneumatic parts sensitive to vibration and shock in the VEB assembly which KARI directly transports among the KSLV-I upper stage transportation items. So, the special attention in the transportation is required. The transportation container with the apparatus for controlling environment was made in order to meet the requirements. The transportation tests using the engineering model were performed 4 times to verify the performance of the transportation container and to conform the transportation conditions(transportation velocity, route, etc.). In this document, the previous transportation history of the VEB assembly, the overview and the result of the KSLV-I FM unit 2 VEB assembly transportation are described.

A Study on the Method of Nonlinearity Correction in a GM Counter

  • Ha, Chung-Woo;Yook, Chong-Chul;Philip S. Moon
    • Nuclear Engineering and Technology
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    • v.10 no.3
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    • pp.137-144
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    • 1978
  • A method is presented here in order to determine a nonlinearity correction of observed counter rates in a GM counter. An expression, which is developed under the assumption of dead time dependence on counting rates, gives good agreement with the results obtained from the experimental work. The variation of pulse voltages from a GM counter with counting rates was measured with the aid of pulse height analyzer. This method gives accurate values for the dead time over a wide range of counting. The technique as outlined allows tile exact correction of the nonlinearity caused by dead time loss. It was observed that the dead time decreases as the counting rate increases.

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A Study on Entering System of Digital Book used Web Service (웹서비시를 이용한 전자도서 입력봉사 시스템에 관한 연구)

  • Lee, Chan-Woo;Kang, Seong-Woon;Kim, Tae-Hoon;Baek, Seung-Geon;Seo, Yu-Sang
    • Proceedings of the Korea Information Processing Society Conference
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    • 2017.11a
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    • pp.982-985
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    • 2017
  • 전자도서 입력봉사 시스템이란 시각장애인을 위한 봉사활동의 일환으로써 일반 도서를 컴퓨터 워드작업을 통해 전자도서를 제작하여 시각장애인에게 제공하기위한 자원봉사활동을 의미한다. 하지만 봉사자의 모집이 어렵고, 봉사자들의 중도포기가 많은 등 애로사항이 존재함에 따라 지속적인 전자도서 제작의 어려움이 존재한다. 이를 해결하고자 본 논문에서는 웹서비스 기술을 이용한 전자도서 입력봉사 시스템을 제안한다. 본 연구에서는 입력봉사 시스템을 구현하기 위해서 설계 개요, 계획 단계, 분석 단계, 설계 단계, 개발 단계, 시험 단계를 거쳐 웹서비스를 설계한다. 본 논문의 결과는 시각장애인복지관 또는 시각장애 관련 정책 개선 시 활용될 수 있으리라 본다. 또한 향후 보다 효율적인 입력봉사 시스템 체계의 설계를 위한 고도화 연구가 필요하다.