• 제목/요약/키워드: Support conditions

검색결과 2,798건 처리시간 0.026초

지반응답곡선을 이용한 터널의 지반거동 분석 (Ground Response Curve for Ground Movement Analysis of Tunnel)

  • 이송;안성학;안태훈;공성석
    • 한국철도학회논문집
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    • 제5권4호
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    • pp.244-252
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    • 2002
  • We must notice ground movement by excavation for reasonable tunnel designs. The convergence confinement method is an attempt to evaluate tunnel stability conditions by means of a mathematical model and a ground response curve. In this study, the convergence confinement method by numerical model was examined. This method don't need the basic assumptions for a mathematical model of circular tunnel shape, and hydrostatic in situ stress. Also modified ground response curve that is calculated after installing the support, is suggested, which informs us the ground movement mechanism. The ground response curve and the support reaction curve are mutually dependent. Especially the support reaction curve depends upon the ground response curve. The mechanism of tunnel must be analyzed by the interaction between support and ground. Consequently the stability of tunnel must be qualitatively investigated by a ground response curve and quantitatively adjudged by a numerical analysis for the reasonable design of tunnel.

양발로 선 자세와 한발로 선 자세의 자세안정도 검사 (Postural stability test of double leg support and single limb stance)

  • 권미지
    • 대한물리치료과학회지
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    • 제5권4호
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    • pp.851-860
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    • 1998
  • The purpose of this study was to quantitatively observe changes in postural stability of double leg support and single limb stance. Thirty-six healthy subjects participated in the study. Postural stability were examined using Dynamic Balance System. Each trial was 25 sec in duration. Each of 6 conditions{double leg support and single limb stance ; eyes open in stable platform, eyes closed in stable platform, eyes open in dynamic platform) evaluated effect of visual, vestibular, proprioceptive system. Center of balance found for displacement to the left along the X axis in double leg support and to the forward on left toe in single limb stance. Sway index was the lowest in double leg support with eyes open in stable platform and the higher in single limb stance with eyes closed in stance platform. We believe that reliable and valid measures should be used to determine the contributing factors of our client's postural problems so that we can design the most effective treatment possible.

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보-거더 시스템 슬래브에서 지지부 처짐영향에 관한 연구 (Support Deflection Effects in Slabs with Beam and Girder)

  • 곽효경;송종영
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1997년도 가을 학술발표회 논문집
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    • pp.55-62
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    • 1997
  • The support deflection effects in slabs with beams and girders are reviewed for both cases of the uniformly distributed and concentrated wheel loads. The differences in structural behavior according to the variation of support stiffness namely, the moment of inertia of beam and gilder, and the slab thickness, are calculated using the finite element method. Besides. the correction factors which can consider the support deflection effects in slab design are proposed by regression based on the obtained numerical results. Through the comparision studies of slabs with different boundary conditions, the importance for the consideration of support deflection effects in design are emphasized.

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초임교사 교직 적응을 위한 지원 방안 (Ways of Support for Beginning Teacher Induction in Elementary School)

  • 성병창
    • 수산해양교육연구
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    • 제19권2호
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    • pp.310-322
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    • 2007
  • This study is to find ways of support for beginning teacher induction in elementary school with constructing model of professional development. To achieve this purpose, this study reviewed significance of beginning teacher induction program, the bridge to life learning, and constructed the model of professional development for beginning. The final conclusion about ways of support as support intensity are orientation based on demanding of beginning teacher, bridge connection with veteran teacher, coordination of working conditions, collaboration among peer teacher, and strengthening computer network at week intensity level. At strong intensity level, the ways of support for beginning teacher are institutionalization on election and training of mentor, institutionalization on compulsory induction for 1 year, development and operation of teacher education center, and furtherance of school learning organization.

A Study on Corporate Support for Employment of Retirees in Gyeongsangnam-do Employment Crisis

  • Jang, Yumi
    • International Journal of Advanced Culture Technology
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    • 제10권3호
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    • pp.33-38
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    • 2022
  • Gyeongsangnam-do needed an employment stability response policy to induce re-employment of job seekers who retired due to large-scale unemployment and job instability following the employment crisis, and stable settlement and long-term employment after new employment.This study is to confirm the effective corporate support policy as an employment promotion strategy through new recruitment of the employment crisis in Gyeongsangnam-do. A total of 380 companies in Gyeongsangnam-do were targeted for the survey through online surveys and in-person surveys. As a result of the study, as a measure to improve working conditions through financial support for long-term employment stability, first, support for youth-middle-age asset formation of SME workers is required, and second, support for old-age income guarantee for SME workers was proposed. Third, direct corporate subsidies are continuously needed for job promotion and job stability of Gyeongsangnam-do companies.

재순환식 증기발생기 U-튜브군에 대한 유체탄성 불안정 해석 (Fluidelastic Instability Analysis of the U-Tube Bundle of a Recirculating Type Steam Generator)

  • 조종철;이상균;김웅식;신원기;은영수
    • 대한기계학회논문집
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    • 제17권1호
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    • pp.200-214
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    • 1993
  • 본 연구에서는 Westinghouse Model 51 증기발생기의 U-bend 영역에서 2차측 유체의 횡단유동으로 유발될 수 있는 튜브군의 유체탄성불안정을 예측하기 위한 해석 을 수행하고 그 대표적인 결과들을 제시하였다. 그리고 U-bend 영역에서 AVB에 의한 튜브의 지지상태와 형태 및 최상부 TSP에서 Denting 또는 이물질 고착으로 인하여 변 경된 튜브의 고정지지조건 등이 튜브의 유체탄성불안정 응답에 미치는 영향을 조사하 였다. 유체탄성불안정 해석과정에서 필수적으로 선행되어야 하는 2차측 3차원 2상 유동장 계산은 증기발생기 열수력 해석용인 ATHOS3 코드로써 수행되었으며, U-튜브의 고유진동수와 모우드 형상은 공학해석용 유한요소 프로그램인 ANSYS코드로써 계산되었 다.

노출형 조압수조의 해석모델별 내진성능평가 (Seismic Performance Assessment of Atmospheric Surge Tank)

  • 김용곤;옥승용;김일규;류선호;배정주
    • 한국안전학회지
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    • 제31권5호
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    • pp.67-73
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    • 2016
  • This study investigates the seismic performance of the surge tank which is of the atmospheric type and constructed above the ground. For that purpose, three different numerical models of the surge tank have been taken into account. Two models are constructed to describe the surge tank with different support conditions: one is to model all supports as fixed, and the other is to use spring element for the rock conditions. The third model is constructed to describe not only the surge tank with spring element of the rocks but also the vertical waterway tunnel. Through the time-history analysis of the surge tank subjected to three artificially excited ground motions, it is demonstrated that there can be much difference between the three models of our interest according to the support conditions and inclusion of the vertical waterway tunnel. However, their seismic performances still remain below the safety criteria, i.e., dynamic allowable stress. Also, the numerical results let us know where the critical sections occur. These results could be used to develop the efficient seismic enhancement method for the surge tank.

사회복지사 처우 및 지위향상을 위한 지방자치단체 조례분석 (Analysis of Ordinance for Labor Conditions Improvement of Social Worker)

  • 이용재;원훈희;강명희
    • 한국콘텐츠학회논문지
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    • 제14권1호
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    • pp.189-199
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    • 2014
  • 본 연구는 사회복지사 등의 처우 및 지위향상을 위해 제정된 지방자치단체 조례분석을 통하여 사회복지종사자 등을 위한 조례제정의 발전적 방향을 제시하는데 목적이 있다. 2013년 7월까지 현재 지방자치단체가 제정 또는 입법예고한 조례 42건을 대상으로 조례의 각 항목을 분석하였다. 분석결과는 다음과 같다. 첫째, 조례의 구성내용 분석결과 조례의 목적, 적용대상, 지자체장의 책무, 실태조사, 지원계획 수립, 처우개선 등 사업은 42개 지방자치단체 조례에 동일하게 제시 되었다. 반면에 처우개선위원회, 포상은 없는 지방자치단체가 상당히 많았다. 둘째, 사회복지종사자 처우개선 수준에 대한 명확한 기준을 제시하지 않는 조례가 많아서, 보건복지부 사회복지종사자 인건비기준 혹은 사회복지전담공무원 수준 등으로 사회복지종사자 처우개선 수준을 명확히 제시해야 한다. 셋째, 사회복지사 처우개선을 위해 실태조사 기간이 명확치 않으며 처우개선을 논의하기 위한 조직과 지원체계가 명확치 않았다. 따라서 사회복지종사자 처우수준에 대한 실태조사 기간을 명시하며 주기적으로 실태를 파악하도록 하고, 사회복지종사자 처우개선 위원회 등을 조직하여 지원계획을 수립하고 이행할 수 있도록 해야 한다.

적정 흙막이 공법 선정을 위한 웹 기반 의사결정 지원 시스템 (A Web-based Decision Support System for Selecting Optimal Retaining Wall Systems)

  • 김혜원;최명석;이강
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2008년도 정기학술발표대회 논문집
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    • pp.694-697
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    • 2008
  • 건설 생애 전 주기 중에서 기획단계의 지반 조사로 시작되는 흙막이 공법의 선정은 잘못 선정될 경우 해당 프로젝트의 공사비와 공기에 끼치는 영향이 매우 크다. 그렇기 때문에 공법 선정의 요인 및 프로세스에 관련된 연구가 많이 발표되었지만 일반인들의 활용이 어려워 실용화되지 못하고 있다. 본 연구에서는 본 연구의 선행연구에서 개발한 흙막이 공법 선정 프로세스에 기반하여 웹 기반 의사결정 지원시스템을 개발하였다. ASP.NET을 이용하여 사용자들의 접근성을 높이고 자료의 보완 및 수정이 용이한 웹 기반 시스템인 Dr. Underground로 발전시켰다. 이 의사결정 지원 시스템은 일반인들이 쉽게 접근하여 건축물 기본요구 사항과 대지 조건, 인접 대지 조건을 입력하면, 해당 프로젝트에 적절한 흙막이 공법을 선정해주고 그에 대한 상세 정보를 제공해준다.

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중소병원의 교육훈련 프로그램 특성 및 조직상황적 특성이 직무전이에 미치는 영향에 관한 연구 (A Study on the influence of job transfer in E&T programs characteristics & organizational situational characteristics of the medium and small-sized hospitals)

  • 김용혁
    • 한국병원경영학회지
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    • 제16권4호
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    • pp.131-160
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    • 2011
  • The purpose of this study was 1) to understand the job transfer in education & training(E&T) programs & organizational situational characteristics, and 2) to analyze the effects of the E&T programs & organizational situational characteristic groups on each of the levels of job transfer. There is intimate relationship between E&T programs characteristics & organizational situational characteristics and job transfer, so we can't think of them separately. With this point of view the most frequently discussed problem is how to apply the theory in actual job, but in reality it's true that the improvement of job transfer can't reach the expectations of the E&T programs. In literature view study, the concepts of job transfer in E&T, the general theory on E&T, and the actual condition and points at issue of the existing E&T practices in the medium and small-sized hospitals were defined. As the results from empirical analysis, we could find followings: First, in evaluation of the job transfer, demographic characteristics (seniority, occupational category, position) variables have a significant different. Second, in degree of the job transfer, E&T programs characteristics(contents of E&T, design of E&T, conditions of E&T, teaching ability of lecturer, methods of E&T) variables have a different influence upon each of the evaluation levels of E&T. Third, support of CEO variables have a different influence on the job transfer according to contents, design, conditions of the E&T programs. Fourth, support of co-works variables have a different influence on the job transfer according to design, conditions, method of the E&T programs. Fifty, support of organizational atmosphere variables have a different influence on the job transfer according to contents, design, conditions of the E&T programs.

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