• Title/Summary/Keyword: Leaning Modes

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Structural Behaviors for Pressurized Fabric Leaning Arches

  • Kim, Jae Yeol
    • Architectural research
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    • v.3 no.1
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    • pp.45-52
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    • 2001
  • In this paper, a pressurized single vertical arch and a pressurized leaning arch composed of flexible fabric material are considered. These arches have also been considered as a possible support structure for the tent-like structures. Two different boundary conditions are considered in leaning arches with fixed bases and pinned bases. The behaviors of the leaning arches are investigated for two tilt angles as 15, 30. For each angle, two loading conditions are considered as uniformly distributed load and wind loads. The F.E.M. is used through the all analysis procedures. For the results, load-deflection relationships, buckling modes, differences between two boundary conditions and deformed configurations are discussed.

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Fault Current Discrimination of Power Line using FCM allowing self-organization (FCM에 기반한 자가생성 지도학습알고리즘을 이용한 전력선의 고장전류 판별)

  • Jeong, Jong-Won;Won, Tae-Hyun;Lee, Joon-Tark
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.368-369
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    • 2011
  • This article suggests an online-based remote fault current mode discrimination method in order to identify the causes of the power line faults with various causes. For that, it refers to existing cause identification methods and categorizes modes by fault causes based on statistical techniques beforehand and performs the pretreatment process of fault currents by each cause acquired from the fault recorder into a topological plane in order to extract the characteristics of fault currents by each cause. After that, for the fault mode categorization, it discriminates modes by each cause using data by each cause as leaning data through utilizing RBF network based on FCM allowing self-organization in deciding the middle layer. And then it tests the validity of the suggested method as applying it to the data of the actual fault currents acquired from the fault recorder in the electric power transmission center.

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Fault Current Discrimination of Power Line using Phase Space (위상평면을 이용한 전력선의 고장전류 판별)

  • Jeong, Jong-Won;Lee, Joon-Tark
    • Proceedings of the KIEE Conference
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    • 2009.04a
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    • pp.86-88
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    • 2009
  • This article suggests an online-based remote fault current mode discrimination method in order to identify the causes of the power line faults with various causes. For that, it refers to existing cause identification methods and categorizes modes by fault causes based on statistical techniques beforehand and performs the pre-treatment process of fault currents by each cause acquired from the fault recorder into a phase space in order to extract the characteristics of fault currents by each cause. After that, for the fault mode categorization, it discriminates modes by each cause using data by each cause as leaning data through utilizing RBF network. And then it tests the validity of the suggested method as applying it to the data of the actual fault currents acquired from the fault recorder in the electric power transmission center.

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A Study on the Learning Modes of Start-up Accelerating Program: Focusing on Korean Accelerators in the ICT Field Targeting Global Market (액셀러레이터 보육 프로그램이 제공하는 학습방식에 관한 연구: 글로벌 지향 ICT 분야 액셀러레이터를 중심으로)

  • Shin, Seung Yong;Lee, Jonghyun
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.1
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    • pp.31-46
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    • 2023
  • This study classified and confirmed the learning modes about start-ups that are based on the accelerator's program which was focusing on the Korean accelerators in the ICT field targeting global market. Eight accelerator practitioners were interviewed who were in charge of operating programs for accelerators, qualitatively analyzing method of the interview was conducted. The interview results to identify various learning modes that accelerators provide to startups through programs. In order to identify and classify learning modes, the researcher reviewed various prior documents and using categories of experience accumulation, observation, experimentation, trial and error, and improvisation as a priori code for the qualitative analysis. The interview results were analyzed through a subject analysis. As the result of the study, the learning modes offered by the accelerator's programs to startups were confirmed, with two subcategories identified for each of the five categories: experiential, learning from others, experimental, trial and error, and improvisation. Given the limited research on accelerator programs and their main function, the main function of accelerators, this study identified the types of learning modes that offered by the accelerator's programs to startups from the perspective of learning. This study provides important insights into the types of learning modes that offered by the accelerator programs, which can help to improve our understanding of how accelerators support organizational learning for startups. Additionally, this information can be useful for startups considering in participating in the accelerator programs, as it can help them making informed decisions about their involvement.

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