• Title/Summary/Keyword: Defining Relation

Search Result 102, Processing Time 0.029 seconds

Cracking behavior of RC shear walls subject to cyclic loadings

  • Kwak, Hyo-Gyoung;Kim, Do-Yeon
    • Computers and Concrete
    • /
    • v.1 no.1
    • /
    • pp.77-98
    • /
    • 2004
  • This paper presents a numerical model for simulating the nonlinear response of reinforced concrete (RC) shear walls subject to cyclic loadings. The material behavior of cracked concrete is described by an orthotropic constitutive relation with tension-stiffening and compression softening effects defining equivalent uniaxial stress-strain relation in the axes of orthotropy. Especially in making analytical predictions for inelastic behaviors of RC walls under reversed cyclic loading, some influencing factors inducing the material nonlinearities have been considered. A simple hysteretic stress-strain relation of concrete, which crosses the tension-compression region, is defined. Modification of the hysteretic stress-strain relation of steel is also introduced to reflect a pinching effect depending on the shear span ratio and to represent an average stress distribution in a cracked RC element, respectively. To assess the applicability of the constitutive model for RC element, analytical results are compared with idealized shear panel and shear wall test results under monotonic and cyclic shear loadings.

A Study on the Some Points for Practical Attention of UCP 600 (UCP 600의 실무상의 유의점에 관한 연구)

  • Lee, Bang-Sik;Park, Suk-Jae
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
    • /
    • v.42
    • /
    • pp.89-107
    • /
    • 2009
  • The latest UCP, Uniform Customs and Practice for Documentary Credits, 2007 Revision, ICC Publication No.600 has been adopted by most banks in the world since July 1, 2007. This work intends to study some points for practical attention of UCP 600 in the field of examining documents and defining some words. Some points for practical attention of UCP 600 in the field of examining documents include the period for examining documents, the conflict with data in the documents, and the fulfilling the function of documents. Some points for practical attention of UCP 600 in the field of defining some words include the complying presentation, negotiation, and nominated banks. Furthermore, this work studies some points for practical attention of UCP 600 in relation to the nomination and the missing in the course of sending documents.

  • PDF

Nonlinear Analysis of RC Shear Walls under Cyclic Loadings (반복하중을 받는 철근콘크리트 전단벽의 비선형 해석)

  • 곽효경;김도연
    • Proceedings of the Computational Structural Engineering Institute Conference
    • /
    • 2003.10a
    • /
    • pp.179-186
    • /
    • 2003
  • This paper describes an extension of a numerical model, which was developed to simulate the nonlinear behavior of reinforced concrete (RC) structures subject to monotonic in-plane shear. While maintaining all the basic assumptions adopted in defining the constitutive relations of concrete under monotonic loadings, a hysteretic stress-strain relation of concrete, which crosses the tension-compression region, is defined. In addition, curved unloading and reloading branches inferred from the stress-strain relation of steel considering the Bauschinger effect are used. Modifications of the stress-strain relation of concrete and steel are also introduced to reflect a pinching effect depending on the shear span ratio and to represent an average stress distribution in a cracked RC element, respectively.

  • PDF

Fuzzy Deterministic Relations (퍼지 디터미니스틱 관계)

  • Sung, Yeoul Ouk;Lee, Hyun Kyu;Yang, Eunmok
    • Journal of Digital Convergence
    • /
    • v.19 no.10
    • /
    • pp.377-382
    • /
    • 2021
  • A fuzzy relation between X and Y as fuzzy subset of X × Y was proposed by Zadeh. Subsequently, several researchers have applied the notion of fuzzy subsets to various branches of mathematics and computer sciences. Murali an Nemitz have studied fuzzy relations connected with fuzzy equivalence relations and fuzzy functions. Ounalli and Jaoua defined a fuzzy difunctional relation on a set. difunctional relations are versatile mathematical tool, which can be used in software design and in database theory. Their work have revealed the usefulness of difunctional relations in program specification and in defining program correctness. The main goal of this paper is to define a fuzzy deterministic relation on a set, characterize the fuzzy deterministic relation as its level subsets and investigate some properties in connection with fuzzy deterministic relation. In particular we prove that a fuzzy relation R is fuzzy deterministic iff R is a fuzzy function.

A Bayes Rule for Determining the Number of Common Factors in Oblique Factor Model

  • Kim, Hea-Jung
    • Journal of the Korean Statistical Society
    • /
    • v.29 no.1
    • /
    • pp.95-108
    • /
    • 2000
  • Consider the oblique factor model X=Af+$\varepsilon$, with defining relation $\Sigma$$\Phi$Λ'+Ψ. This paper is concerned with suggesting an optimal Bayes criterion for determining the number of factors in the model, i.e. dimension of the vector f. The use of marginal likelihood as a method for calculating posterior probability of each model with given dimension is developed under a generalized conjugate prior. Then based on an appropriate loss function, a Bayes rule is developed by use of the posterior probabilities. It is shown that the approach is straightforward to specify distributionally and to imploement computationally, with output readily adopted for constructing required cirterion.

  • PDF

Communication Sequence Determination for Lead Vehicle Control in a Platoon via Remote Control Station

  • Park, Jae-Weon;Fang, Tae-Hyun
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2002.10a
    • /
    • pp.41.6-41
    • /
    • 2002
  • In this paper, we present a remote control strategy for vehicles moving in an intelligent Vehicle Highway System(IVHS). We study a method for optimal off-line scheduling of a limited communication channel that is used for lead vehicle control in a platoon. The deviated distance from the desired trajectory is used for defining a cost functional that measures the performance of the system with communication constraints in relation to the desired system without communication constraints. The optimal communication sequence is obtained by simulations.

  • PDF

Minimum Aberration $3^{n-k}$ Designs

  • Park, Dong-Kwon
    • Journal of the Korean Statistical Society
    • /
    • v.25 no.2
    • /
    • pp.277-288
    • /
    • 1996
  • The minimum aberration criterion is commonly used for selecting good fractional factorial designs. In this paper we give same necessary conditions for $3^{n-k}$ fractional factorial designs. We obtain minimum aberration $3^{n-k}$ designs for k = 2 and any n. For k > 2, minimum aberration designs have not found yet. As an alternative, we select a design with minimum aberration among minimum-variance designs.

  • PDF

Information, Knowledge, Wisdom: A Progressive a Value Added Chain

  • Satija, Mohinder Partap
    • International Journal of Knowledge Content Development & Technology
    • /
    • v.5 no.2
    • /
    • pp.65-74
    • /
    • 2015
  • The paper lists problems in defining information and knowledge and also in differentiating between the two. It separately describes physical, economic and cognitive properties of information and knowledge. A long drawn comparative chart of the nature, characteristics and properties of knowledge and information is given. In addition it explains their relation with wisdom. The paper emphasizes that knowledge is only a human preserve. Also it finds common grounds and mutual dependence between information, knowledge and wisdom. The purpose is to clear confusion between knowledge and information, and find their relation with wisdom and tradition by placing these in value added and evolutionary chain: Signals--data-- Information--Knowledge--Wisdom--Tradition.

A Study on the Spatial Composition of Hyangdan (향단(香壇)의 건축공간(建築空間) 구성수법(構成手法) 연구(硏究))

  • Ro, Dong-Sung;Hong, Dae-Hyung
    • Journal of architectural history
    • /
    • v.8 no.3 s.20
    • /
    • pp.39-51
    • /
    • 1999
  • The purpose of this study is to establish the theory of the spatial composition that is 'The Structure of Relation' in Korean traditional houses. This study has been focused on the spatial composition of Hyangdan. The form composition is an element defining primitive functions and space and producing aesthetical effects, where 'quality as a substance' is not important but 'quality as a relation' is essential. Quality as a meaningful relationship comes from realization and regulation of visual attributes among form elements. Each form compositional element establishes the hierarchical structure logically with the entire order, In order for the quality of all form compositional elements to be clarified as a meaningful relationship logically, 'compositional concept' which combines a series of form elements into the grammatical dependence to a specific direction, has to be assumed. If the intrinsic relationship among a series of form compositional elements fails to confront with the 'contextual concept' which eventually indicates unique conditions for a place according to the refined compositional concept, the result of form composition never leads to a specific solution

  • PDF

A Concept Analysis of the Rearing (양육의 개념 분석)

  • Lee Soo Yeon
    • Child Health Nursing Research
    • /
    • v.4 no.1
    • /
    • pp.76-85
    • /
    • 1998
  • Rearing is important to the growth and development of the child. Traditionally, nurturing is a maternal role which is expressive role. Maternal role was composed of mothering and maternicity. Rearing is a key concept of psychology, education and sociology discipline. Knowledge of the rearing is an essential component for the development of nursing as a science and a profession. The first thing to study a concept is thought to be a concept analysis. So, in this study, concept analysis of the rearing was performed to clarify a concept of the rearing as a basis for the study of rearing afterward. The approach used for the concept analysis was the approach presented by Walker and Avant (1993). The defining attributes of rearing, identified in this study were (1) a series of caring activities in parent-child relation, (2) an essential of the growth and development of a child, (3) changeable according to time, place and object, (4) effort is necessary to the rearing, (5) positive or negative aspects (6) attitude, behavior, environment is sub-concepts of the rearing concept. The identified antecedents of the rearing was child-birth. The identified consequences of rearing were desirable or undesirable outcomes. Desirable outcome was the emotional satisfaction and growth in parent-child relation. Undesirable outcome was the emotional disorder and social maladaptation of the child. The empirical referents of the rearing could be the caring phenomena in parent-child relation.

  • PDF