• Title/Summary/Keyword: 근거중심설계

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Prediction of Column Axial Force in X-braced Seismic Steel Frames Considering Brace Buckling (가새좌굴을 고려한 X형 내진 가새골조의 기둥축력 산정법)

  • Yoon, Won Soon;Lee, Cheol Ho;Kim, Jeong Jae
    • Journal of Korean Society of Steel Construction
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    • v.26 no.6
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    • pp.523-535
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    • 2014
  • According to the capacity design concept underlying current steel seimsic provisions, the braces in concentrically braced frames should dissipate seismic energy through cyclic tension yielding and compression buckling. On the other hand, the beams and the columns in the braced bay should remain elastic for gravity load actions and additional column axial forces resulting from the brace buckling and yielding. However, due to the difficulty in accumulating the yielding and buckling-induced column forces from different stories, empirical and often conservative approaches have been used in design practice. Recently a totally different approach was proposed by Cho, Lee, and Kim (2011) for the prediction of column axial forces in inverted V-braced frames by explicitly considering brace buckling. The idea proposed in their study is extended to X-braced seismic frames which have structural member configurations and load transfer mechanism different from those of inverted V-braced frames. Especially, a more efficient rule is proposed in combining multi-mode effects on the column axial forces by using the modal-mass based weighting factor. The four methods proposed in this study are evaluated based on extensive inelastic dynamic analysis results.

A Study on Correlation between Atypical Architecture Classification and Main Public Space of the Museums (박물관의 비정형 건축형태와 중심공간과의 상관성에 관한 연구)

  • Park, Sang-Jun
    • The Journal of the Korea Contents Association
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    • v.21 no.3
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    • pp.88-102
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    • 2021
  • This study focused on the museums mainly holding permanent exhibitions except for the function of special exhibition in museum architectural works. This study aimed to draw the possibility to establish the relation between architectural form and central space of museums, by applying the forms like formal form, informal form, segment form, and diagonal form shown through a case study to total 164 work cases, reclassifying the architectural form into informal form, formal form, semi-formal form, segment form, diagonal form, and linear form, and then analogizing the matter of correlation between architectural form and central space of museums. The relevant contents could be summarized as follows. overall, most of the central spaces according with the informal architectural form of museums were the informal form, which showed 92.7% distribution rate. overall, there were many cases of informal architectural form of museums. Compared to the formal form, the informal architectural form showed the higher correlation with central space. The informal architectural form of museums is estimated to be continuously developing in the future. This study aims to present the basic data aiming for interior architecture design by considering the correlation between central space and architectural form.

MRP를 활용한 방산업체의 원가관리시스템 설계

  • 최성빈
    • Korean Management Science Review
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    • v.5 no.2
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    • pp.25-41
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    • 1988
  • 정부는 군의 전력증강을 위하여 매년 국방예산중 상당한 액수를 국내 방산업체에서 생산하고 있는 방산물자의 구매에 사용하고 있다. 이와 같은 막대한 예산을 효과적으로 집행하기 위해서는 무엇보다도 중요한 것이 계약행위이고 계약행위중 가격의 결정이다. 이때 계약가격의 결정방법은 여러가지 방법이 있으나 통상 사용되고 있는 것은 실제 생산활동에서 발생한 원가정보를 획득하여 이것을 근거로 가격을 결정하는 것이다. 따라서 진정한 원가정보를 획득하기 위해서는 방산업체의 체계적인 원가자료의 수집과정과 원가관리시스템의 정착이 무엇보다도 중요하다. 본 연구에서는 MRP개념을 활용하여 원천적으로 민수와 방산물자의 원가를 구분하여 적정원가를 산정할 수 있는 효율적인 원가시스템의 설계방안을 사례를 중심으로 하여 제시하고자 한다. 특히 본 연구에서 제시할 시스템은 계약가격 산정을 위하여 사용되는 것 이외에도 방산업체와 정부가 각자의 계획 및 통제, 정책수립 등에 유용하게 사용될 수 있도록 설계한다.

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Concept of Information Architecture on Digital TV based on User Thought (사고 유형에 기초한 디지털 TV 채널 정보구조의 구상)

  • Hyun, Hye-Jung;Ko, Il-Ju
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.9
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    • pp.77-85
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    • 2010
  • As various convergency products have been actively developed, the study on user interface has been conducted a lot, and for more specific direction, users' experience-oriented user interface from user-oriented studies is recently developed. Such a tendency aiming to focus on product development to express users' emotion, the next step in the user-oriented development had difficulties in an objective approach, so the data based on previous users' experiences were presented as the basic data to establish user interface design process with grounds and design direction, and therefore it is available to show more specific and objective grounds. From this perspective, such psychological variables showing users' experiences like age and job are studied through surveys of users at the development of products, and products according to the variables are released. On the other hand, the products considering psychological difference distinguishing users' experiences as the cultural cap are not progressed yet. Despite the understanding of cultural difference, its decisive grounds are hard to distinguish like age, and job. Therefore, the cognitive concept about how to design menu information structure according to accident types that can be considered regarding user interface design among theoretical backgrounds about cultural difference. As the category according to the range of things among accident types, it is divided into analytical type and relational type to conduct a test on similarity and relations about the representative digital TV's menu information of the convergency product. As the result, analytical type and relational type showed difference and this study aims to use menu information concept considering this difference as explanatory variables of the users' experience-oriented development.

Effects of the Eccentric Viewing Training Software Based on Korean for Reading Speed: A Case Study (한글기반 중심외보기 훈련 프로그램이 읽기속도에 미치는 효과: 사례연구)

  • Hong, Seung-Pyo
    • Journal of Digital Convergence
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    • v.16 no.7
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    • pp.441-449
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    • 2018
  • The aims of this study were to consist of the eccentric viewing training software based on Korean and to examine the effects on reading speed. The program was used the Korean stimuli by rapid serial visual presentation. Single-subject A-B-A' research design for 2 normally-sighted young adults was used to examine the effect. The reading speed data on short-sentence of participants showed a statistically significant result, as both data from the intervention period and post-training baseline period deviated more than 2 standard deviations from the pre-training baseline period. Through this study, we suggested that eccentric viewing training software based on Korean characters stimulation would allow clinician in Korea to improve reading skills of low vision individuals with central scotomas.

Behavior and Design of H-Section Steel Column Base Plates for Light Concentric Load (작은 축력을 받는 H형강 기둥의 베이스플레이트 거동과 설계)

  • Sim, Ki Chul;Kim, Eun Hwa;Kim, Won Ki
    • Journal of Korean Society of Steel Construction
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    • v.16 no.4 s.71
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    • pp.453-461
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    • 2004
  • Since there are no specifications in Korea regarding the design of steel column baseplates that are subjected to concentric axial load, this paper proposes a more accessible stress design method for baseplates based on AISC specifications and guidelines.Some designs included in this paper were: (1) a full area ofconcrete bearing pressure under normal axial load and subsequent failure in external cantilevers at 0.95 d or 0.8 bf, and (2) a partial area of the pressure under a light axial load and subsequent failure as an internal cantilever model.

A Study on Cost Estimate for Building Parts in the Schematic Design Phase -Focusing on Educational Research Facility- (부분별 코스트산정법을 활용한 계획설계 비용예측에 관한 연구 - 교육연구시설을 중심으로 -)

  • Kim, Yo-Han;Lee, Baek-Rae;Kim, Ju-Hyung;Kim, Jae-Jun
    • Journal of KIBIM
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    • v.1 no.1
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    • pp.18-25
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    • 2011
  • Construction cost estimation in the early phase provides the opportunity to make reasonable decisions related to the project. For estimating this cost, various methods have been developed. But several problems have been recognized like accuracy, relation beteewn design and cost etc. In this study, we developed the method of cost estimating for building parts. The modified method has defferent ratio of space functions to calculate cost more correctly. Also historical cost data is used in this modified method for architects to estimate cost conveniently. By this modified method, we expects architects should easily design buildings based on cost.

Development of Impression Management Education Program for Career Women (직장 여성을 위한 인상관리 교육프로그램 설계)

  • Hwang, Jung-Sun;Lee, Yoon-Jung
    • Journal of Korean Home Economics Education Association
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    • v.34 no.1
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    • pp.97-111
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    • 2022
  • The purpose of this study is to systematically develop an impression management education program for career women by applying the Educational System Development Model [ESD] (Kwon, 1997) based on the research results of Hwang and Lee(2019) on social attractiveness. Since the previous impression management education programs were generally developed by content experts, few of them were developed systematically by considering the learner characteristics, clearly setting the educational goals, and structuring the contents accordingly. In this study, 'social attractiveness' defined by Hwang and Lee (2019) was considered as the educational goal of the impression management education program. In particular, this study focused on the design stage of the ESD model, set teaching goals based on the components of social attractiveness derived from previous studies, and conducted an analysis of teaching activities, the establishment of the educational goals at the specific function level, allocation of time, and establishment of an evaluation plan. The research process was intended to improve the learners' social image directly related to success through a systematic educational program designed to enhance the social attractiveness of working women with various hands-on activities and information. The impression management education program designed in this study has the educational advantage of a learner-centered education program configured to meet the needs and goals of career women. In addition, based on the ESD model, the sub-factors necessary for impression management were identified, and the curriculum was configured to reflect them through mutual communication between the instructor and learners. Therefore, this education program meets the basic requirements of impression management education necessary for career women and is expected to contribute to enhancing the social attractiveness of working women.

Optimization of High Strength Steel Springback for Autobody through Parametric Analysis (파라메터 분석을 통한 차체용 고강도 강판의 스프링백 최적화)

  • Jeon, Tae-Bo;Kim, Hyung-Jong
    • Journal of Korean Society for Quality Management
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    • v.36 no.4
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    • pp.29-36
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    • 2008
  • 최근 자동차 경량화를 위한 부단한 노력이 진행되고 있다. 이 목적에서, HSS (high strength steel)는 전통적인 연강 (mild steel)의 대안으로 널리 사용되고 있다. 본 연구의 목적은 판금의 형단조에 있어서의 공구와 공정설계를 위하여 HSS의 스프링백(springback)을 정확히 예측하기 위한 성공적인 방법론을 추구하고자 함이다. 연구를 위하여 먼저 스프링백의 개념과 그의 측정치들을 설명했으며 U-draw bending 시험을 수행하였다. 시험 결과 및 선정된 파라메터들 중심의 수행평가기준에 근거하여, 주어진 파라메터 조합들을 중심으로 유한요소 해석을 수행하였다. 직교배열을 통하여 스프링백에 대한 인자 효과들을 포괄적으로 분석하였으며 최적 인자 조합들을 도출하였다. 이 과정에서 직교배열상의 한 조합 전체의 데이터가 가용하지 않는 문제가 수반되었으며, 반복적으로 signal-to-noise 비(ratio)를 개선해가는 기법을 적용하여 해결하였다.

Exploring Virtual Community Development Process Typology (비즈니스 모델과 커뮤니티 형성과정 변화에 관한 탐색적 연구)

  • Kim, Sung-Ook;Han, Hyun-Soo
    • 한국IT서비스학회:학술대회논문집
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    • 2003.11a
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    • pp.275-283
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    • 2003
  • 온라인 채널의 발달로 전자상거래를 통한 거래와 수익 증가에 관한 많은 연구들이 진행되어왔으나 수익 원천으로써의 커뮤니티(Community)에 관한 연구는 제한적이다. Hagel(1997)은 커뮤니티를 미래 사업 모델의 중심축이 될 것으로 예측하고 커뮤니티의 수확체증효과와 수익증가역학고리, 커뮤니티 자산들을 통해 포탈 비즈니스 모델에 적합한 일방향적이고 순차적인 커뮤니티 형성 프로세스를 중심으로 제시하였다. 본 논문에서는 전자상거래의 형태에 따라 커뮤니티 형성 프로세스의 변화 형태는 차별화 된다는 사례들에 근거하여 e-비즈니스 모델에 따른 차별화 된 커뮤니티 성공요인, 커뮤니티 주요자산들의 중요도 차이, 전환비용발생 요인을 파악하였으며, 이를 바탕으로 커뮤니티 형성 프로세스의 구조적 변화 행태를 제시하였다. 본 연구는 온라인 비즈니스 도입 기업에게 비즈니스 모델과 연계하여 네트워크 외부 효과를 극대화하는 차별화 된 커뮤니티 활용 포커스와 수익성 향상을 위한 커뮤니티 형성 프로세스를 설계하는 프레임�p을 제시하였다는데 그 특징이 있다.

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