• Title/Summary/Keyword: aspects

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Wind tunnel test study on verifying the characteristics of torsional fluctuating wind force of rectangular tall buildings (고층건축물의 비틀림방향 변동풍력의 특성에 관한 실험적 연구)

  • Ha, Young-Cheol;Kim, Dong-Woo;Kil, Yong-Sik
    • 유체기계공업학회:학술대회논문집
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    • 2006.08a
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    • pp.101-104
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    • 2006
  • This study aims at verifying characteristics of torsional fluctuating moment coefficient and power spectral density, which is needed to estimate torsional response of tall buildings. In order to estimate characteristics, the wind tunnel tests have been conducted on 52 types aero-elastic model of the rectangular prisms with various aspects ratios, side ratios and surface roughness in turbulent boundary layer flows. In this paper, characteristics of torsional fluctuating wind force are briefly discussed and then these results were mainly analyzed as a function of the aspects ratios and side ratios of buildings.

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The Standardization Issue for ITU-T FG IPTV Security Aspects (ITU-T FG IPTV Security Aspects 표준화 기술 동향)

  • Park, J.Y.;Moon, J.Y.;Kim, J.T.;Paik, E.H.
    • Electronics and Telecommunications Trends
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    • v.22 no.5
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    • pp.130-143
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    • 2007
  • IPTV 서비스는 IP 환경에서 다양한 콘텐트를 전송하는 기술로 기존의 방송 시스템과 통신 시스템의 장점을 그대로 수용하는 기술이다. 이에 ITU-T SG13에서는 FG IPTV를 통해 요구사항 및 구조 중심의 표준화를 진행하고 있다. ITU-T FG IPTV는 6개의 WG로 구성되어 진행중에 있으며, WG3는 security aspects의 주제를 가지고 보안 기술에 대한 표준화를 진행하고 있다. 본 문서는 2007년 5월과 7월의 4차, 5차 표준화 회의를 중심으로 WG3의 표준화 동향 및 기술적 분석을 정리한다.

Factors related to Sexual Permissiveness among University Students in Korea (대학생들의 혼전 성허용동에 관련된 변인들)

  • 윤경자
    • Journal of the Korean Home Economics Association
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    • v.33 no.4
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    • pp.251-263
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    • 1995
  • Using 497 university students in Korea, this study investigates factors related to university students' sexual behaviors. Multiple regression analyses are performed to assess best model on premarital sexual behavior. the results indicate that there is no difference on the levels of premarital sexual behavior for males and females, except on sexual intercourse. While love for the partner and relationship aspects are best predictors for less experienced males and followed by dating experience, for less experienced females, situational aspects and their own and partner's chastity are positively and negatively related to premarital sexual behaviors of highly experienced males and females, respectively. Other variables related to sexual permissiveness, in general, by sex are also discussed.

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Psychological Aspects of Household Debt Decision: The Use of the Heckman's Procedure

  • Lee, Jong-Hee
    • International Journal of Human Ecology
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    • v.9 no.1
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    • pp.81-95
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    • 2008
  • This paper examined the impact of psychological characteristics of consumers on household debt decisions. With the use of the Heckit models (the traditional approach to the selection problem) this study undertook an empirical study of the influence of a wide range of factors on financial decisions. This study used U.S. household-level data that offers detailed information on household debt, expectations about future income, expectations about future economic conditions, the amount of financial risk the respondent was willing to take, and the amount of time allotted for planning family savings and spending. This study showed that respondents with both substantial financial risk tolerance and positive expectations about future income were likely to have larger household debt showing that researchers and policy-makers need to consider consumer sentiment and preference measures in modeling behavior in credit markets. Additional results showed that household debt is significantly related to two key economic variables: income and net worth.

An Experimental Study on the Fatigue Crack Propagation Behavior Under Mixed-Mode Single Overload (혼합모드 단일과대하중 하의 피로균열 전파거동에 관한 실험적 연구)

  • Song, Sam-Hong;Lee, Jeong-Moo;Hong, Suck-Pyo
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.119-124
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    • 2003
  • In this study, retardation behavior of fatigue crack under single overloading of the mixed mode I+II state was experimentally investigated. To produce single overload in the mixed mode I+II state, the compact tension shear (CTS) specimen and loading device were used. The propagation tests for fatigue crack were performed under mode I loading overloading afterwards. We examined the observed deformation aspects, variation of fatigue life and crack propagation rate, and the aspects of retardation behavior from tests. The retardation effect of mixed-mode single overload on fatigue crack propagation behavior was smaller than that of mode I single overload. It has been confirmed that the retardation behavior did not immediately appear and the retardation length was short when the component of mixed-mode overload was changed.

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Dual TORCs driven and B56 orchestrated signaling network guides eukaryotic cell migration

  • Kim, Lou W.
    • BMB Reports
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    • v.50 no.9
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    • pp.437-444
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    • 2017
  • Different types of eukaryotic cells may adopt seemingly distinct modes of directional cell migration. However, several core aspects are regarded common whether the movement is either ameoboidal or mesenchymal. The region of cells facing the attractive signal is often termed leading edge where lamellipodial structures dominates and the other end of the cell called rear end is often mediating cytoskeletal F-actin contraction involving Myosin-II. Dynamic remodeling of cell-to-matrix adhesion involving integrin is also evident in many types of migrating cells. All these three aspects of cell migration are significantly affected by signaling networks of TorC2, TorC1, and PP2A/B56. Here we review the current views of the mechanistic understanding of these regulatory signaling networks and how these networks affect eukaryotic cell migration.

Effects with the Variation of Single Overload mode on Propagation Behavior of Fatigue Crack (단일과대하중의 작용모드 변화가 피로균열의 전파거동에 미치는 영향)

  • 송삼홍;이정무;신승만;홍석표;서기정
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1508-1512
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    • 2003
  • In this study, retardation behavior of fatigue crack under single overloading of the mixed mode state was experimentally investigated. To produce single overload in the mixed mode I+II state, the compact tension shear (CTS) specimen and loading device were used. The propagation tests for fatigue crack were performed under mode I and mixed-mode loading overloading afterwards. We examined the observed deformation aspects, the variation of fatigue life and crack propagation rate, and the aspects of retardation behavior from tests. The retardation effect of mixed-mode single overload on fatigue crack propagation behavior was smaller than that of mode I single overload. Also the loading modes of variable and constant amplitude loads have influence on the retardation behavior of fatigue cracks.

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A Perspective on Teaching Mathematics in the School Classroom

  • BECKER, Jerry
    • Research in Mathematical Education
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    • v.20 no.1
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    • pp.31-38
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    • 2016
  • WHAT we teach, and HOW students experience it, are the primary factors that shape students' understanding and beliefs of what mathematics is all about. Further, students pick up their sense of mathematics from their experience with it. We have seen the results of the approach to "break the subject into pieces and make students master it bit by bit. As an alternative, we strive to create a teaching environment in which students are DOING mathematics and thereby engender selected aspects of "mathematical culture" in the classroom. The vehicle for doing this is the so-called Japanese Open-ended approach to teaching mathematics. We will discuss three aspects of the open-ended approach - process open, end product open, formulating problems open - and the associated approach to assessing learning.

Introduction to the Applied Kinesiology, as a Yin-Yang Balance Based Approach (음양균형의학으로서의 응용근신경학(AK) 개요)

  • Yin, Chang Shik
    • Journal of TMJ Balancing Medicine
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    • v.7 no.1
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    • pp.24-31
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    • 2017
  • Applied Kinesiology (AK) is an evaluation system on the functional balance and integration of the body. Functional aspects of the triad of health are evaluated through muscle testing to see if the balance and integration is in an optimal status or is influenced by a given environmental stimulation. Triad of health refers to the structural, chemical, and psychological aspects of the body. Muscle testing in AK is a functional neurological assessment of muscular response to a given environmental stimulation in a given individual. Meridian system and stomatognathic system as in TMJ balancing medicine serve as one of the theoretical basis of AK. This article reviews core concepts of AK, discusses yin-yang balance medicine perspectives and clinical applications of it.

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The influence of electronic-word-of-mouth on consumer decision-making for beauty products in a Kuwaiti Women's online community

  • Al-Haidari, Nahed;Coughlan, Jane
    • Journal of Contemporary Eastern Asia
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    • v.13 no.2
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    • pp.3-14
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    • 2014
  • Online communities are an important source of electronic-word-of-mouth (eWOM), however few studies have examined these types of messages within the Middle Eastern context. This study focuses on Kuwaiti women as members of an online beauty forum; previous work has suggested a mediating effect of gender with women being more likely to trust and follow-up word-of-mouth with a purchase. A conceptual model, based on existing theoretical contributions, provides the basis of a coding framework for the message characteristics that influence members' eWOM adoption. A sub-set of the analysis is presented: 218 threads (1820 messages, coded into 6702 units) illustrating cases where eWOM was adopted and thereby demonstrating continuance intention with members returning to the forum. Content analysis revealed the prevalence of emotional aspects in messages, coded into a new category of 'community bonding'. Findings show that emotion expressed in messages is as influential and important as cognitive aspects of argument quality.