• Title/Summary/Keyword: Possibility Theory

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Natural Frequencies of Laminated Composite Plates with Attached Mass Under an Uniform Axial-Loading (등분포 축하중을 받고 첨가질량이 재하된 적층복합판의 고유진동수에 관한 연구)

  • Hong, Chang-Woo;Kim, Kyeong-Jin
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.4 no.4
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    • pp.181-190
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    • 2000
  • Vibration analysis for some of simple supported antisymmetric composite laminated plate loaded uniform axial-loading and attached mass was carried out. Because it is complicated to analyze this type of plate by theory of antisymmetric laminate possibility for application of theory of special orthotropic laminate was studied, and natural frequency of laminated plate attached mass was calculated. Stiffness $B_{16}$, $B_{26}$, $D_{16}$, $D_{26}$ for this type of antisymmetric laminated plate converge on zero as the number of ply increases and it is possible to use classical theory by reason that considered plate has quasi-homogeneity without relevance to variation of angle. Difference between results by theory of antisymmetric and special orthotropic laminate is 0.36~1.96%, therefore it is convenient to analyze this by use of theory of special orthotropic laminate. When composite laminated plate with attached mass is analyzed range that Was able to neglect self-weight of plate was proposed.

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Applying Hyun-Ga therapy through isometric exercise on meridian pathways for the Treatment of Idiopathic scoliosis (측만증 치료에 대한 경락 등척성 운동인 현가요법적 접근)

  • Lee, Yong-Seob;Lee, Sang-Ryong
    • Korean Journal of Acupuncture
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    • v.26 no.4
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    • pp.89-105
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    • 2009
  • Objectives : Hyun-Ga therapy, a creative method that involves meridian pathways for isometric exercise, has displayed the possibility of treating and alleviating idiopathic scoliosis in terms of theory. The researcher explored current research trends and introduced Hyun-Ga therapy in which meridian pathways theory is applied. Methods : We examined theses and books of oriental or western medicine that cover idiopathic scoliosis. By doing these, we looked into the role of Hyun-Ga therapy towards the prevention and treatment of idiopathic scoliosis, and gained the following results. Results and Conclusions : Hyun-Ga therapy, the manual technique that has introduced the concept of silence and movement into rectifying the body through isometric exercise on meridian pathways in the limbs, can be practiced more easily than other conventional manual techniques. Hyun-Ga therapy based on meridian pathways theory is highly evaluated for its clinical insight on the structural and functional roles of meridian pathways. The theory of Hyun-Ga therapy, however, needs to be supported by more objective and sufficient complementary data. For this, continuing research and analysis are required in the future.

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Considerable Parameters and Progressive Failure of Rock Masses due to the Tunnel Excavation (터널 굴착시 고려해야 할 주변앙반의 매개변수와 진행성 파괴)

  • 임수빈;이성민
    • Proceedings of the Korean Geotechical Society Conference
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    • 1994.09a
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    • pp.231-234
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    • 1994
  • Concentrated stresses due to the tunnel excavation easily cause failure around opening in the soft rock mass layer. Thus, while excavatng tunnel in the soft rock mass layerm it is very important to predict the possibility of failure or yielding zones around tunnel boundary. There are two typical methods to predict these; 1) the analysis of field monioring data and 2) numerical analysis. In this study, it was attempted to describe the time-dependent or progressive rock mass manner due to the continuous failure and fracturing caused by surrounding underground openings using the second method. In order to apply the effects of progressive failure underground, an iterative technique was used with the Hoek and Brown rock mass failure theory. By developing and simulating, three different shapes of twin tunnels, this research simulated and estimated the proper size of critical pillar width between tunnels, distributed stresses on the tunnel sides, and convergences of tunnel crowns. Moreover, results out progressive failure technique based on the Hoek and Brown theory were compared with the results out of Mohr-Coulomb theory.

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Aerothermoelastic Analysis of Cylindrical Piezolaminated Shells Based on Multi-field Layerwise Theory (다분야 층별 이론에 기초한 원통형 압전적층 쉘의 공력열탄성학적 해석)

  • Oh, Il-Kwon;Shin, Won-Ho;Lee, In
    • Composites Research
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    • v.15 no.3
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    • pp.52-61
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    • 2002
  • For the aerothermoelastic analysis of cylindrical piezolaminated shells, geometrically nonlinear finite elements based on the multi-field layerwise theory hale been developed. Applying a Han Krumhaar's supersonic piston theory, supersonic flutter analyses are performed for the cylindrical piezolaminted shells subject to thermal stresses and deformations. The possibility to increase flutter boundary and reduce thermoelastic deformations of piezolaminated panels is examined using piezoelectric actuations. Results show that active piezoelectric actuations can effectively increase the critical aerodynamic pressure by retarding the coalescence of flutter modes and compensating thermal stresses.

Ortho-phonic Alphabet Creation by the Musical Theory and its Segmental Algorithm (악리론으로 본 정음창제와 정음소 분절 알고리즘)

  • Chin, Yong-Ohk;Ahn, Cheong-Keung
    • Speech Sciences
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    • v.8 no.2
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    • pp.49-59
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    • 2001
  • The phoneme segmentation is a very difficult problem in speech sound processing because it has found out segmental algorithm in many kinds of allophone and coarticulation's trees. Thus system configuration for the speech recognition and voice retrieval processing has a complex system structure. To solve it, we discuss a possibility of new segmental algorithm, which is called the minus a thirds one or plus in tripartitioning(삼분손익) of twelve temporament(12 율려), first proposed by Prof. T. S. Han. It is close to oriental and western musical theory. He also has suggested a 3 consonant and 3 vowel phonemes in Hunminjungum(훈민정음) invented by the King Sejong in the 15th century. In this paper, we suggest to newly name it as ortho-phonic phoneme(OPP/정음소), which carries the meaning of 'the absoluteness and independency'. OPP also is acceptable to any other languages, for example IPA. Lastly we know that this algorithm is constantly applicable to the global language and is very useful to construct a voice recognition and retrieval structuring engineering.

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A Study on Applying Complex System Theory to Land Warfare using EINSTein Model (EINSTein 모형을 이용한 복잡계이론의 지상전 적용에 관한 연구)

  • 이태원;강성진
    • Journal of the Korea Society for Simulation
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    • v.9 no.1
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    • pp.55-66
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    • 2000
  • This paper deals with complex system theory to describe land combat situation using EINSTein (Enhanced ISAAC Neural Simulation Tool) simulation model. Many studies have shown that existing Lanchester equations used in most wargame models does not describe changes of combat units, real land warfare situation and qualitative factors in combat. Future warfare will be a non-linear combat with various weapon system and complex combat units. EINSTein models is an agent-based simulation tool using complex system theory. We have compared and tested land combat results with Lanchester models and EINSTein models. The results have shown that EINSTein model has a possibility to apply and analyze land warfare more properly than Lanchester models.

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Review of Elder Abuse (노인학대에 관한 이론적 고찰)

  • 한동희
    • Journal of the Korean Home Economics Association
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    • v.32 no.4
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    • pp.45-56
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    • 1994
  • This paper reports about possibility of the elder abuse as a third vulnerable population among family violence in Korea. Although the study of against the elderly has not been reported in our society the need for information about the nature of elder abuse is clear with social change. There will be profound changes in our culture which in recent decades has been largerly dominated in our family. This paper will be explained some theoretical perspectives; Social learning theory Symbolic interaction theory, Exchange theory and factors related to the occurrence of elder abuse; 1) personal characteristics of the abuser and the abused 2)interpersonal characteristics of the relationship between the abuser and the elderly person 3) situational factors that increase the likelihood of abuse 4) socio-cultural factors that impinge on the use of violence. According to them the patterns and other predictions of elder abuse will be pointed.

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Two Types of Concessive Conditionals in English and Their Implications to the Semantics of 'even' (영어의 두 가지 양보조건문과 even의 의미에 대한 함의)

  • Lim, Dongsik
    • Language and Information
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    • v.18 no.2
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    • pp.123-140
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    • 2014
  • The aim of this paper is twofold: to identify two types of even if concessive conditionals, standing-ifs and introduced-ifs (Bennett 1982) in terms of whether the truth of the consequent is 'entailed' (the consequent-entailment problem in terms of Lycan 2001); and to analyze these two types of concessive conditionals in a compositional way. Here we argue that, following Guerzoni and Lim (2007), even if conditionals can be analyzed as the cases where even gets its focus in conditionals. We also argue that the consequent-entailment problem can be accounted for in a compositional way if we identify the focus as well as the scope of even in conditionals correctly. We further argue that the analysis presented in this paper supports the scope theory of even, among two theories of even previously proposed in various works. We also consider the possibility where concessive conditionals without even can be analyzed as an extension of the analysis proposed in this paper.

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Political Dynamics of Introducing Quasi Mixed-Member Proportional Representation Electoral System: Veto Player and Partisanship (준연동형 비례대표제 도입의 정치 동학: 거부권행사자와 당파성)

  • Ju, Jin-Sook
    • Korean Journal of Legislative Studies
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    • v.26 no.1
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    • pp.5-32
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    • 2020
  • This study analyzes the political dynamics of the election law reform in December 2019, from a perspective of the veto player theory combined with the partisan theory. Three features are revealed in the reform process of the electoral system. First, the number of cooperative veto players was higher than that of competitive veto players, that provided a favorable condition for policy changes. Second, concerning the ideological distance between veto-players (congruence) the possibility of policy change was evaluated as quite small. Especially in the fourth to fifth periods, the congruence between the cooperative veto players and competitive veto players was extremely weak. Third, the internal coherence of cooperative veto players was relatively weak, while the internal coherence of competitive veto players was relatively strong. That acted as a limiting factor in policy changes. In other words, there was a high possibility of policy changes in the number of cooperative veto players, but the possibility of policy change was relatively restricted in the congruence between veto players and the cohesion of veto players. That explains the limited nature of the election law reform.

A Study on Landscape Architecture Planning and Design as Communicative Action (의사소통 행위로서의 조경계획 및 설계에 대한 연구)

  • 김연금;이규목
    • Journal of the Korean Institute of Landscape Architecture
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    • v.31 no.5
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    • pp.73-85
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    • 2003
  • With more and more people paying attention to substantial democracy, participatory democracy is presented as a practical strategy and an index of Korean democracy. In this social and political atmosphere, participation in environmental planning and design is essential. Nonetheless, the true meaning of “participation” is not used properly because many people do not understand it correctly, The concept of social and political participation is “the action or attempt of ordinary members of society for affecting on the result of decision making.” Based on this concept, participation is accomplished through conventional means and as a form of mobilization in environmental planning and desist Most of the theories on public participation in landscape architecture are technical theories. Therefore, this paper proposes that planning and design of landscape architecture be understood as a communicative action that aims to enable stakeholders to reach a consensus through communication. This study offers the framework of theory to understand and practice planning and design of landscape architecture as a communicative action, after reviewing communicative action theory and communicative planning theory. Results suggest that communicative action theory should be accepted in landscape architecture to overcome the shortcomings of instrumental rationality -- the same way planning theory accepted this theory --and to join the culture of experts focusing on the artistic truth and the culture of life of the world. In addition, accepting communicative action theory enables the acquisition of the instrumental effect and social learning effect and the making of social capital. This study also suggested prerequisite for using the method. There should be change in the social institution and in individual action. In addition the method is composed of three steps: creating the atmosphere for communication; communicating, and; reaching a consensus among stakeholders. Finally, raising the possibility of applying the theory presented in this study requires the accumulation of know-how through trial and error.