• Title/Summary/Keyword: Standard specification

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Authoring Tool for Mobile Contents based on LASeR (LASeR 기반 모바일 콘텐츠 저작 도구)

  • Kim, Sun-Kyung;Kim, Hee-Sun
    • Journal of Korea Society of Industrial Information Systems
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    • v.13 no.3
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    • pp.31-37
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    • 2008
  • MPEG 4 Part 20 LASeR (ISO/IEC 14496 20) is a specification designed to deliver rich media services in a mobile environment. The specification is an emerging standard that can replace the MPEG 4 BIFS specification designed to deliver PC based heavyweight media contents. The specification describes the representation of scene information in a resource constrained mobile environment. Unlike the BIFS standard designed to deliver heavyweight rich media, the LASeR specification has a restricted description that conforms to the SVG Tiny 1.2 specification. Also, the specification has an advantage of allowing for the efficient conversion of one graphics format to another. In this paper, we present the design and the implementation of a LASeR authoring system that allows for fast and efficient creation of interactive rich media contents in a mobile environment. The Gill interface of the authoring system presented in this paper allows users, who do not have prior knowledge of the scene description language, to conveniently create contents and store the produced scenes using the internal list data structure. The system allows users to navigate scene objects internally stored and to create LASeR XML files in the structured XML format.

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A Fundamental Study on the Application of Performance-Based Construction Standard in Building Construction (건축분야에서의 성능중심 건설기준 적용 방안에 관한 기초적 연구 - 시방서를 중심으로 -)

  • Roh, Tae-Im;Kim, Sang-Heon;Ji, Suk-Won;Choi, Soo-Kyung;Seo, Chee-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.05a
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    • pp.187-191
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    • 2008
  • This study focuses on applying performance-based design to construction standard in building construction. First, it realizes situation and issues of standard specification in building construction, deduces the need factors for establishing performance-based construction standard, and then, it proposes the application of performance standard. The required stages for deducing performance-based construction standard consist of dividing building parts, deducing required functions, performance items and performance requirement and deciding a method of performance evaluation. Through these stages, performance-based design process is deduced.

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Live Load Distribution of Prestressed Concrete Girder Bridge with Curved Slab

  • Park Sun-Kyu;Kim Kwang-Soo;Kim Jin-Ho;Choi Jung-Ho
    • Journal of the Korea Concrete Institute
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    • v.16 no.5 s.83
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    • pp.709-717
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    • 2004
  • The existing AASHTO Standard Specification have some inadequacies in expressing wheel load distribution of bridge which has specific shape of curved bridge instead of straight bridge. Thus, this research presented the finite element analysis and modelling technique of prestressed concrete girder bridge having curved slab and the expression of wheel load distribution was suggested as the ratio of bending moment utilizing the result of finite element analysis of prestressed concrete girder bridge having cowed slab. The considered parameter of girder distribution expression is the curvature of slab, span length, girder space, cross beam space and number of lanes. Though the suggested girder distribution expression is generally underestimated below AASHTO Standard Specification, once the curvature of slab increases, the suggested expression gets larger than AASHTO LRFD Standard Specification.

Comparison of Prescription Regarding Form Work in Standard Specifications among Domestic and Foreign Countries (국내외 표준 시방서의 거푸집 및 동바리 시공.해체 관련 규정의 비교)

  • Jeon, Kyu-Nam;Choi, Sung-Yong;Noh, Sang-Kyun;Back, Dae-Hyun;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2009.05b
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    • pp.195-198
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    • 2009
  • In this paper, regulation for form work in standard specification among Korea and foreign countries are studied and compared. Within the scope of this paper, regulation regarding fabrication of form and form removal are mainly focused on. Standard specification prescribed by construction temporary equipment association provides detailed regulations and well arranged. ACI 347-04, CEB-FIP and BS EN 13670 had different style and scope compared to domestic specification. Especially, regulation for form removal in ACI prescribed in terms of minimum period.

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Network and Data Link Layer Security for DASH7

  • Seo, Hwa-Jeong;Kim, Ho-Won
    • Journal of information and communication convergence engineering
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    • v.10 no.3
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    • pp.248-252
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    • 2012
  • The sensor network standard DASH7 was proposed to improve transmission quality and low power communication. Specifications for the standard are currently being developed, so the security specification has not been firmly implemented. However, without a security specification, a network cannot work due to threats from malicious users. Thus we must ensure confidentiality and authentication of data packets by using a cryptography method. To contribute to the DASH7 security specification, this paper shows the implementation results of network and data link layer security by using advanced encryption standard (AES) counter with CBC-MAC (CCM) over CC430 sensor nodes.

Development of Live Load Moment Equations Using Orthotropic Plate Theory (직교 이방성 판 이론을 이용한 바닥판 활하중 모멘트 산정식 개발)

  • Ahn Ye-Jun;Nam Suk-Hyun;Park Jang-Ho;Shin Yung-Seok
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2006.04a
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    • pp.749-756
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    • 2006
  • Because of the orthotropic elastic properties and significant two-way bending action, orthotropic plate theory may be suitable for describing the behavior of concrete filled grid bridge decks. Current AASHTO LRFD Bridge Design Specification(2004) has live load moment equations considering flexural rigidity ratio between longitudinal and transverse direction, but the Korea highway bridge design specification(2005) doesn't. The Korea highway bridge standard specification LRFD(1996) considers an orthotropic plate model with a single load to estimate live load moments in concrete filled grid bridge decks, which may not be conservative. This paper presents live load moment equations for truck and passenger car, based on orthotropic plate theory. The equations of truck model use multiple presence factor, impact factor, design truck and design tandem of the Korea highway bridge standard specification LRFD(1996). The estimated moments are verified through finite-element analyses.

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Hypermedia Models for CALS Environment (CALS환경에서의 하이퍼미디어 모델 적용에 관한 연구)

  • 임만택
    • The Journal of Society for e-Business Studies
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    • v.1 no.1
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    • pp.159-171
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    • 1996
  • Nowadays, multimedia and Hypermedia become hot topics in information industry. Due to high capacity of media storage and fast communication network, it is possible to exchange text data as well as image, moving picture and voice. Especially to apply hypermedia under CALS standard environment, the relation between international standard and CALS standard needs to be considered. This study introduces conceptual background and processing model of HyTime (Hypermedia Time-based Structuring Language) which is a specification of hypermedia exchange, Hyper ODA (Hyper Open Document Architecture) which is a major multimedia communication basis, MMCF (Multimedia Communication Forum), AHM(Amsterdam Hypermedia Model), and DSRM(DAVIC System Reference Model) reference model which helps determination of hypermedia communication specification Although they are international standard, provisional standard or non-standard, it discusses the Possibility of adopting them as CALS standard. Hence, this paper chooses the best recommend for CALS among these models.

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A STUDY ON THE CLASSIFICATION OF OWNER'S STANDARD SPECIFICATIONS

  • Jai-Dong Koo;Tae-Song Kim
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.1158-1164
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    • 2005
  • This study suggests how to classify owner's standard specifications in organizations such as local governments which place an order for constructing general and various types of facilities. And the principal conclusions of this study can be summarized as follows; first, the Standard Specifications for Seoul Metropolitan Government of for all facilities could be integrated by seven individual works. Second, it is advisable from a viewpoint of long term to draw up integrally owner's standard specifications by trade for facilities, rather than draw up by group of facilities. Third, editing integrated standard specifications for all trades to meet the unified work classification structure should be backed up by high technology, therefore owner's standard specifications by trades would be favorable to our situation.

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Study on the Standard Specification of Linear Induction Motor Type Light Rail Vehicle Electrical Equipment (선형유도모터형식 경전철 전기장치 표준사양 연구)

  • Cho, Hong-Shik;Lee, Ho-Yong;Cho, Bong-Kwan;Hong, Jai-Sung;Ryu, Sang-Whan
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1181-1182
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    • 2007
  • Light Rail Transit (LRT) System is an urban transit system which has approximately an intermediate transportation capacity between conventional subway and bus ($5,000{\sim}25,000$ persons per hour and per direction). It is a high-tech system which operational capacity, punctuality and mobility are remarkably improved. There are some types of LRT systems such as monorail, tramway, AGT(Automated Guideway Transit), and so on. The LRT systems have been applied and being operated in about a hundred lines around the world and many projects that apply the LRT systems in Korea are being proceeded and scheduled. For the efficient management, economical construction, and safe operation of various LRT systems, the establishment of national standard is necessary such as vehicle standardized specification, vehicle performance test standard, vehicle safety standard, construction guide, operation regulation, etc. of LRT systems. This paper presents the standard specification of electrical equipment of linear induction motor type light rail vehicle, that is LIM AGT(AGT system propelled with linear induction motor) vehicle. The LIM AGT system has been applied in Japan subway and ART(Advanced Rapid Transit) system of Canada and Yongin LRT is currently under construction.

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Development of Standard Test Specification for Hiking Stick (등산스틱 시험규격 개발 연구)

  • Kil, S.K.;Kim, J.H.;Kim, T.W.;Lee, S.C.;Hwang, J.H.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.9 no.4
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    • pp.309-317
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    • 2015
  • In this paper, we proposed the standard test specification for safety and function of hiking stick for the elderly. We have concluded nine factors representing specification of hiking stick through analysis of hiking patents and research papers, products survey of business market, case studies for damaged hiking stick and expert surveys. To test the factors, we designed three different kinds of apparatus to examine twist resistance, stick and tip durability and stick straightness. The sample of hiking sticks purchased from market based on Naver sales ranking top to fifteenth. As a result, we concluded six-standard test specification based on eccentric load, adjustable parts load, hand strap load, basket load, tip load and pull load of hiking stick.

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