• Title/Summary/Keyword: generality

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A Derivation of the Accuracy Relationship between the Reconstruction of 3D Object Coordinates and the Number of Closed Curves (폐곡선의 수에 따른 3차원 물체의 좌표 복원 정확도 관계 도출)

  • Lee, Deokwoo
    • Journal of Korea Multimedia Society
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    • v.20 no.7
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    • pp.1004-1013
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    • 2017
  • This paper presents a relationship between the number of curves and geometric parameters of a 3D object. Once the relationship is established, the number of closed curves that can reliably represent 3D object is derived. Inspired by Shannon-Nyquist Sampling Theorem, in this paper, approach for sampling rate (defined as the minimum number of curves) for 3D reconstruction is proposed. The relationship is straightforward, is suitable for application to 3D object overlaid with closed-continuous curves, and can achieve efficient 3D reconstruction system in practice. To substantiate the proposed approach, simulation results are provided and the results show that the number of curves can be decreased without loss of generality of characteristics of a target 3D object.

Flow Assignment and Packet Scheduling for Multipath Routing

  • Leung, Ka-Cheong;Victor O. K. Li
    • Journal of Communications and Networks
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    • v.5 no.3
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    • pp.230-239
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    • 2003
  • In this paper, we propose a framework to study how to route packets efficiently in multipath communication networks. Two traffic congestion control techniques, namely, flow assignment and packet scheduling, have been investigated. The flow assignment mechanism defines an optimal splitting of data traffic on multiple disjoint paths. The resequencing delay and the usage of the resequencing buffer can be reduced significantly by properly scheduling the sending order of all packets, say, according to their expected arrival times at the destination. To illustrate our model, and without loss of generality, Gaussian distributed end-to-end path delays are used. Our analytical results show that the techniques are very effective in reducing the average end-to-end path delay, the average packet resequencing delay, and the average resequencing buffer occupancy for various path configurations. These promising results can form a basis for designing future adaptive multipath protocols.

Lateral Drift Optimal Control Technique of Shear Wall-Frame Structure System using Composite Member (합성부재를 이용한 전단벽-골조 구조시스템의 횡변위 최적제어방안)

  • Lee, Han-Joo;Jung, Sung-Jin;Kim, Ho-Soo
    • Proceeding of KASS Symposium
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    • 2005.05a
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    • pp.191-198
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    • 2005
  • The effective stiffness-based optimal technique to control quantitatively lateral drift for shear wall-Frame structure system using composit member subject to lateral loads is presented. Also, displacement sensitivity depending on behavior characteristics of structure system is established and approximation concept that preserves the generality of the mathematical programming is introduced. Finally, the resizing technique of shear wall, frame and composite member is developed and the example of 20 story framework is presented to illustrate the features of the quantitative lateral drift control technique.

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Study on Social-communicating Situation of the Folk Remedies (민간요법에 대한 사회의식조사연구)

  • Oh Se Chang;Kwon Young Kyu;Yang Chae Ha;Kim Kwang Joong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.3
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    • pp.443-451
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    • 2002
  • In the present social-communicating situation of the folk remedies, we can say there is no responsible main group of it. When we look for recent published remedy books, their authors' background is too various. The folk remedy only focuses on the generality but it does not understand the problem of misusing with lack of explanation and classification in view of the oriental medicine. In conclusion, current folk remedies have formed a figure out of irresponsibility.

A Heterogeneous Mobile Data Synchronization Technique Using the Tuple Based Message Digest (튜플 단위 메시지 다이제스트를 이용한 이기종 모바일 데이터 동기화 기법)

  • Park, Seong-Jin
    • Journal of Internet Computing and Services
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    • v.7 no.5
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    • pp.1-12
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    • 2006
  • In mobile database environments, the efficient synchronization technique is required to maintain the consistency of replicated data because the same data can be replicated between so many different databases, In this paper, we propose a message digest based synchronization technique to maintain the consistency of replicated data between client databases and a server database in mobile environments. The proposed data synchronization technique has the advantage of generality aspect and extensibility aspect by using the tuple-based message digest output to detect the data conflicts.

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Development of BIM models and management of BIM data for waterworks maintenance (상수도시설물의 유지관리를 위한 BIM모델 개발 및 BIM 데이터 관리방안)

  • Park, Jaehyun;Lee, Hyundong;Kwak, Pilljae
    • Journal of Korean Society of Water and Wastewater
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    • v.28 no.6
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    • pp.669-679
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    • 2014
  • 3D-based BIM(Building Information Modeling) technologies can be utilized effectively as a means of systematic management of facility information for safety assurance and effective maintenance of waterworks facilities. In this study, BIM models of water treatment facilities that can be used as basic data for BIM-based maintenance of waterworks facilities were developed. Information exchange and generality of the developed BIM models were evaluated by conducting interoperability analysis of IFC(Industry Foundation Classes) conversion models. In addition, the application of COBie(Construction Operations Building information exchange) was recommended as an effective countermeasure to deal with technical limitation regarding exchange and utilization of facilities-related information through current IFC models. The results of this study can contribute to the development of BIM-based maintenance system for waterworks facilities.

Blending Surface with Parameter Control in Compound Surface (복합 곡면에서 매개변수 조정에 의한 블렌딩곡면 생성)

  • 김종열;이희관;공영식;양균의
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.10
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    • pp.148-155
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    • 1998
  • For products of various shapes, compound surfaces are used. Blending surfaces are essential to the products of the compound surfaces. In this paper a method of making shape of blending surface flexible with parameter control is discussed. The parameter has quantitative control of shape of the blend. The blending surface is applied to NURBS and simple primitives in solid model. Intersection curves of surfaces is used to provide the blend with generality. Rail curve are found with the intersection curves. The blend is generated by rail curves and parameter control. Also, In strict constraint condition, blending surface with flexible shapes is discussed, keeping ;${GC}^1$ and ;${GC}^2$ continuity between free-formed surfaces and solids. Joining blending ,bridge blending and blending surface at corner are generated.

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Customs and Smuggler Game where Customs Have N Patrol Boats (경비정 수가 N인 경우의 세관원-밀수자 게임)

  • 오형재
    • Journal of the military operations research society of Korea
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    • v.25 no.2
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    • pp.31-43
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    • 1999
  • This paper deals with the problem of Customs trying to stop a Smuggler attempting to ship a cargo of perishable contraband(or information) across a strait within the limited period. The papers concerning these fields referred by Thomas, Baston et al, and Garnaev, have treated games dealing with one, two, and three patrol boats against one smuggler ship respectively. In this paper the author proposed a game model dealing with N patrol ships against one smuggler ship with the N boats being identical. The strategies for the gamers where games are conducted between them are shown in tables 3.3-1 and the game values thereof are in table 3.2-3. The author has exhaustively filled up the assumptions and conditions in the paper to justify the above-mentioned results so that they may not loose the generality.

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Implementing an Inflection Analyzer Program for English Verbs in a Word-and-Paradigm Morphology. (낱말.패러다임 형태이론에 입각한 영어동사 굴절 해석 프로그램의 구현)

  • No, Yong-Kyoon
    • Language and Information
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    • v.2 no.2
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    • pp.121-154
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    • 1998
  • The morphological analyzer is expected to tell attested word forms from imaginable yet unattested ones. An account of the inflectional morphology of English verbs is given in the framework of Word-and-Paradigm morphology, developed mainly by Matthews (1972, 1974, 1991) and further by Aronoff (1994) and Zwicky (1985, 1988), which is free of overrecognition. Thirteen inflectional classes are identified according to the patterns each of them exhibits in filling the slots in the paradigm. Peculiarity in orthography is also considered in assigning each verb lexeme to a class. Modules of a C program which gives associated morphosyntactic properties to all and only attested verb forms are written so that details of this framework can be evaluated explicitly. This program is shown to be superior to existing programs in economy and in the generality it achieves.

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Numerical Calculation of High Pressure Compaction for Porous Materials (높은 압력을 받는 다공질재료의 압축에 대한 수치해석적 연구)

  • 박종관
    • Geotechnical Engineering
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    • v.3 no.3
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    • pp.63-74
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    • 1987
  • A practical constitutive equation with sufficient generality is proposed for porous materials to deal with plastic pore compaction and pore related strain-hardening. With an application of this proposed model, finite element calculations are executed for the compaction of a porous material. Results show powerful potential of finite element method in a quantitative investigation of the process of the compaction. Special attention is given to the process of unloading during which the development of tensile principal stress may lead to phenomena such as lamination and end-capping.

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