• 제목/요약/키워드: influence of structure

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Characteristics and prediction methods for tunnel deformations induced by excavations

  • Zheng, Gang;Du, Yiming;Cheng, Xuesong;Diao, Yu;Deng, Xu;Wang, Fanjun
    • Geomechanics and Engineering
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    • 제12권3호
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    • pp.361-397
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    • 2017
  • The unloading effect from excavations can cause the deformation of adjacent tunnels, which may seriously influence the operation and safety of those tunnels. However, systematic studies of the deformation characteristics of tunnels located along side excavations are limited, and simplified methods to predict the influence of excavations on tunnels are also rare. In this study, the simulation capability of a finite element method (FEM) considering the small-strain characteristics of soil was verified using a case study. Then, a large number of FEM simulations examining the influence of excavations on adjacent tunnels were conducted. Based on the simulation results, the deformation characteristics of tunnels at different positions and under four deformation modes of the retaining structure were analyzed. The results indicate that the deformation mode of the retaining structure has a significant influence on the deformation of certain tunnels. When the deformation magnitudes of the retaining structures are the same, the influence degree of the excavation on the tunnel increased in this order: from cantilever type to convex type to composite type to kick-in type. In practical projects, the deformation mode of the retaining structure should be optimized according to the tunnel position, and kick-in deformation should be avoided. Furthermore, two methods to predict the influence of excavations on adjacent tunnels are proposed. Design charts, in terms of normalized tunnel deformation contours, can be used to quantitatively estimate the tunnel deformation. The design table of the excavation influence zones can be applied to determine which influence zone the tunnel is located in.

남편의류의 구매에 있어 부부간 역할구조에 관한 연구 (A Study on Role Structure of Husband/Wife in Husband's Clothing Purchase Process)

  • 최은영
    • 한국의류학회지
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    • 제19권1호
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    • pp.115-128
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    • 1995
  • The purpose of this study was to investigate the role structure of husband and wife on husband's clothing purchase. For the study, a questionnaire was developed to measure the influence structure and clothing evaluative criteria of husband's clothing purchase and psychological and demographic characteristics of husband. The Purchase influence structure can be defined by applying the concept of Wolfe's power pattern to decision making about buying behavior. Influence structure is the pattern in which influence is distributed among family buying center members for each purchasing decision making item. The analysis was conducted on the basis of 310 couples responces. The result of this study ware as follows; 1. The majority of husband's clothing items were an absolute autonomic·decision product Exceptionally underwear was wife-dominated. The purchase influence structure of husband' s clothing purchase varied on stages in the decision making process. Wife was involved considerably in gathering information search and real purchasing stage. 2. According to the degree of husband and wife influence on discussion stage and final decision stage, consumers were categorized into five types. Husband's psychological characteristics such 3s shopping interest, clothing involvement, importance of mutual satisfaction in purchasing and demographic characteristics were significantly different among types.

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Direct kinematic method for exactly constructing influence lines of forces of statically indeterminate structures

  • Yang, Dixiong;Chen, Guohai;Du, Zongliang
    • Structural Engineering and Mechanics
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    • 제54권4호
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    • pp.793-807
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    • 2015
  • Constructing the influence lines of forces of statically indeterminate structures is a traditional issue in structural engineering and mechanics. However, the existing kinematic method for establishing these force influence lines is an indirect or mixed approach by combining the force method with the theorem of reciprocal displacements, which is yet inconsistent with the kinematic method for statically determinate structure. This paper proposes the direct kinematic method in conjunction with the load-displacement differential relation for exactly constructing influence lines of reaction and internal forces of indeterminate structures. Firstly, through applying the principle of virtual displacement, the formula for influence lines of reaction and internal forces of indeterminate structure via direct kinematic method is derived based on the released structure. Then, a computational approach with a clear concept and unified procedure as well as wide applicability based on the load-displacement differential relation of beam is suggested to achieve conveniently the closed-form expression of force influence lines, and exactly draw them. Finally, three representative examples for constructing force influence lines of statically indeterminate beams and frame illustrate the superiority of the proposed method.

기업의 조직구조에 미치는 정보기술 도입의 영향 (Influence of Adoption of Information Technology on the Change of Organization Structure)

  • 김성언;이승아
    • 한국정보시스템학회지:정보시스템연구
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    • 제6권1호
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    • pp.47-62
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    • 1997
  • Adoption of information technology(IT) in a corporation has been started with the aim of efficient process and management of business being complicated. But, this adoption of IT is roleplaying the rearrangement of organization structure. Many researchers have studied the relationship between adoption of IT and change of organization structure. In this research, it has been studied that how the adoption of IT influences on the change of organization structure. Adoption of IT ina corporation influences the structure of manpower and this influence causes the change of structure of organization. However, this influence is not only the deterministic source to the change. In a corporation, not only intention and role of chief executive and but also participations of employees for the adoption of IT make differences in the quality of corporation information systems and, as a result, the aspect of organization structure change.

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대학병원 종사자의 조직구조, 조직문화에 따른 조직갈등의 관계에 대한연구 (The Relation of Organization Structure, Organization Culture and Organization Conflict of University Hospital Staff Members)

  • 이창호;조덕영;김윤진
    • 보건의료산업학회지
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    • 제9권1호
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    • pp.95-107
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    • 2015
  • The purpose of this study is to analyze the characteristics of hospital organization structure, organization culture, organization conflict and the interrelation of influential factor in organization conflict. The data for this study were collected through a self-administered survey with a structured delivered to 755 subjects including several nursing staff members, administration staff members and medical technicians at six hospitals. The structural equation model was used to examine the relation of organization structure, organization culture and organization conflict. The results of the analysis in this study were as follows. First, organization structure had a positive influence on organization conflict, especially in terms of complexity and centralization. But, formalization had a negative influence on organization conflict. Second, organization culture had a positive influence on organization conflict, especially in terms of group culture, developmental culture, and hierarchical culture. But, group culture had a negative influence on organization conflict. Third, organization structure had positive influences, especially on organization culture complexity, centralization, and formalization. But, centralization had negative influences too.

Fast analytical estimation of the influence zone depth, its numerical verification and FEM accuracy testing

  • Kuklik, Pavel;Broucek, Miroslav;Kopackova, Marie
    • Structural Engineering and Mechanics
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    • 제33권5호
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    • pp.635-647
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    • 2009
  • For the calculation of foundation settlement it is recommended to take into account so called influence zone inside the subsoil bellow the foundation structure. Influence zone inside the subsoil is the region where the load has a substantial influence on the deformation of the soil skeleton. The soil skeleton is pre-consolidated or over consolidated due to the original geostatic stress state. An excavation changes the original geostatic stress state and it creates the space for the load transferred from upper structure. The theory of elastic layer in Westergard manner is selected for the vertical stress calculation. The depth of influence zone is calculated from the equality of the original geostatic stress and the new geostatic stress due to excavation combined with the vertical stress from the upper structure. Two close formulas are presented for the influence zone calculation. Using ADINA code we carried out several numerical examples to verify the proposed analytical formulas and to enhance their use in civil engineering practice. Otherwise, the FEM code accuracy can be control.

도시공간구조 유형별 초등학교 통학로 실태 및 안전도 영향규명 연구 (An Investigation on Actual Condition and the Influence of Safety on Elementary School Road by Types of Urban Spatial Structure)

  • 김태호;김승현;이수일
    • 한국안전학회지
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    • 제28권5호
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    • pp.71-77
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    • 2013
  • This Study aims at investigating actual condition on attending school road of children and analyzing empirically the characteristics of cognition and the influence of safety on school road. This study findings are as follows : 1) Walking alone to go to school is the highest rates among Commuting Mode, and Commuting distance to school is nearly doubles than range of school zone(300 m). 2) Among characteristics of urban spatial structure affecting on influence classify safety of school road, 'Commuting Distance' has been drawn to most influential variable. Especially, there are 4 types classified by commuting distance and it became obvious that the longer the distance, the lower the safety score(under 127 m=76.9 points, Over 451 m=58.3 points). 3) As a result of investigating the influence of Safety on attending school road, Vehicle commuting speed urder 127 m as internal of school zone, and Walking and crossing convenience over 451 m as external of school zone have a lot of influence on safety cognition on school road. Therefore Safety on school road should be considering the commuting distance to school among surrounding characteristics, needed for improvement plan and program based on real safety cognition of children.

전략적 제휴 구성요인과 파트너 선정기준 및 성과인식간의 관계분석 - 컨테이너 정기선사를 중심으로 - (An Empirical Analysis about the Relationship of Alliance Structure Factor, Partner Selection Criteria and Performance awareness - Focused on the Container Liners -)

  • 송선옥
    • 무역상무연구
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    • 제35권
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    • pp.147-178
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    • 2007
  • This study clarified a study of relationship of strategic alliance structure factor, partner selection criteria and performance awareness on the container liners alliance. In order to obtain such objective of study existing literature variables suitable to the container liner were perused and extracted. Research models for research development and three study hypothesis were set out and scope of investigation and samples were chosen. The research hypothesis are followings. H1: The factors of strategic alliance motivation influence the performance awareness. H2: The strategic alliance structure factors influence the performance awareness. H3: The factors of partner selection criteria influence the performance awareness. In the result of the empirical study, the hypothesis 1, hypothesis 2 were supported completely and hypothesis 3 was partially supported.

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전달영향계수법에 의한 원판구조물의 자유진동해석 (Free Vibration Analysis of Disk Structure by the Transfer Influence Coefficient Method)

  • 문덕홍;;;궁동준
    • 대한기계학회논문집
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    • 제15권5호
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    • pp.1439-1446
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    • 1991
  • 본 연구에서는 동적영향계수의 축차전달에 그 개념을 두고 있는 전달영향계수 법을, 2층 원판구조물의 자유진동해석애 적용해서, 그 알고리즘을 정식화 하고 전달매 트릭스법과 비교 검토하였다.

패션 브랜드 진정성의 내부 구조 확인 및 브랜드 애착, 몰입, 충성에 미치는 영향에 대한 양적 연구 (Quantitative Research for Investigating Internal Structure and the Influence on Brand Attachment, Commitment, Loyalty of Fashion Brand Authenticity)

  • 서상우;이유리
    • 복식
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    • 제63권7호
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    • pp.148-163
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    • 2013
  • The purpose of this study is to examine the attributes and internal structure of fashion brand authenticity, which is a new concept of brand association. For quantitative research, a total of 591 samples of consumer survey were taken from 24th of August to 7th of September, 2009. The results of this study were as follows: 1) The scale for the fashion brand authenticity was developed, which consisted of 33 questions. These questions estimated a total of 8 dimensions, including heritage, authority, relationship to place, consistency, non-popularity, trend leading, originality, and ethics. 2) The internal structure of the fashion brand authenticity was confirmed. The internal structure was constituted into core attributes and promoted attributes. 3) The relationship between the fashion brand authenticity and consumer related variables were found. The core attributes of authenticity were putting positive influence directly on brand loyalty. However, paths through brand attachment or brand commitment were not found. The promoted attributes showed that it had a direct negative influence on brand loyalty, but it has also showed positive influence on paths, which underwent brand attachment and commitment.