• 발명특허
• /
• v.4 no.5 s.39
• /
• pp.26-27
• /
• 1979

월남전에 사용된 병기는 주로 대게릴라용으로 개발된 것이 그 특징이다. 이것을 COIN병기(Counter Insurgency Wafare)라 부르고 즉 대반란전쟁, 대인민전쟁용 무기 혹은 유연반응전략(Flexible Response Strategy)용 무기라고도 부른다. CBU(Canister Bomb Unit=산탄형폭탄)도 그 일종이다.

• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 2003.03a
• /
• pp.26-26
• /
• 2003

• Digital Contents
• /
• no.11 s.78
• /
• pp.82-87
• /
• 1999

사이버 대학은 디지털 시대를 맞아 대두된 수요자 중심의 교육패러다임을 능동적으로 수용할 수 있는 새로운 개방형 교육체제로서 재교육, 학위교육, 평생교육 등 다양한 분야의 교육 수요자들에게 유연한 교육환경으로서 인식이 확산되어 가고 있다.

• 방재와보험
• /
• s.116
• /
• pp.16-20
• /
• 2006

성능위주설계(PBD)는 방호 대상물의 특성에 맞는 맞춤형 설계를 수행함으로써 안전 확보와 함께 설계 및 시공의 유연성을 제공하는 제도이다. 성공적인 PBO의 도입 및 정착을 위한 요건에 대해 알아보자.

• Proceedings of the SAREK Conference
• /
• 2003.07a
• /
• pp.84-84
• /
• 2003

• Journal of the Microelectronics and Packaging Society
• /
• v.18 no.2
• /
• pp.17-27
• /
• 2011

This paper describes an experimental study and finite element analysis (FEA) carried out for investigating thermal deformation behavior of solders, resulting from temperature change in the solder. With such a goal in mind, a shear specimen that was composed of two metal bars having different coefficient of thermal expansion and solder blocks placed between two bars was designed and fabricated. Two different types of solder blocks, eutectic solder (Sn/36Pb/ 2Ag) and lead-free solder (Sn/3.0Ag/0.5Cu) were tested as well. Fringe patterns for several temperature steps were recorded and analyzed for three temperature cycles using a real-time moir$\acute{e}$ setup. The experimental data was verified with FEA and used to evaluate the suitability for numerous solder constitutive models available in literatures. FEA employing Anand material model suggested by Darveaux et al. and Chang et al. were found to be in an excellent agreement with the experimental results for the eutectic solder and the lead-free solder, respectively. In addition, numerical predictions on bending displacement, shear strain and viscoplastic distortion energy are documented and viscoplastic deformation behavior of two types of solder material are compared.

• Journal of Adhesion and Interface
• /
• v.12 no.2
• /
• pp.47-55
• /
• 2011

UV-curable coatings have been used in various industries due to their advantages such as high mechanical property, good solvent resistance, fast curing process and low volatile organic compounds. However, a lack of flexibility of UV-cured films is a weak point for the pre-coated system of roll-to-roll process. In this study, UV-curable polycarbonate-based methacrylates were synthesized with polycarbonate diol, isophorone diisocyanate and 2-hydroxyethylmethacrylate to improve flexibility of the UC-cured films. The effects of polyol molecular weight, content of photoinitiator and monomers on the UV-curing behavior, flexibility and properties were investigated. The UV-curing behavior was measured by a photo-DSC, the pendulum hardness, tensile strength, viscoelastic properties were also evaluated.

• 한국노년학
• /
• v.40 no.1
• /
• pp.73-89
• /
• 2020

This study validates an abridged version of the age integration scale by Chung et al. (2015), which constitutes sub-dimensions of age flexibility and age heterogeneity-from Riley et al. (1994)-and observes disparities in the perception of age integration among different socio-cultural characteristics. This study analyzed 1,433 people in the "Age Integration and Generation Integration Survey" data, with the support of the Social Science Competency Enhancement Project (SSK) (supported by the Korea Research Foundation). This paper analyzed the data using exploratory factor analysis, confirmatory factor analysis, multiple-group factor analysis, and a compare means test. The results are as follows. First, the scale was abridged to 13 items from 28, of which eight items concern age heterogeneity and five concern age flexibility. Second, the multi-group analysis did not show a significant difference among younger, middle, and older age groups, therefore allowing the scale to be used among all age groups. Third, when sociocultural characteristics were observed, younger adults showed differences in their levels of age integration, age heterogeneity, and age flexibility regarding their residential area. Middle-aged adults showed dif f erences in their levels of age integration, age heterogeneity, and age flexibility regarding their residential area and social status. Older adults showed differences in their level of age integration regarding their residential area, education level, and social status. They also showed differences in the level of age flexibility regarding their residential area and social status and differences in the level of age heterogeneity regarding their residential area and education. Based on the results of the study, political and practical measures to promote perception on age integration in the future were suggested.

• Information and Communications Magazine
• /
• v.32 no.4
• /
• pp.72-79
• /
• 2015

이동셀은 최근 급증하고 있는 모바일 트래픽을 수용함과 동시에 사용자 중심의 유연한 네트워크를 구성하기 위한 이동형 기지국이다. 본 고에서는 이동셀의 필요성과 그 개념을 소개하고, 인접한 이동셀 간 데이터 및 제어 정보의 교환을 제공하는 이동셀의 사이드홀 통신을 설명한다. 또한, 이동형 환경을 고려한 사이드홀 링크 관리 기술을 살펴보고 그 연구 결과를 간략하게 소개한다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2001.10b
• /
• pp.310-312
• /
• 2001

본 연구에서는 정보시스템의 지능형 인터페이스를 위하여 사용자의 개인성을 학습하는 방법론으로서 신경망 이론의 활용가능성을 고찰한다. 입력형식의 유연성, 입력의 왜곡 및 소실가능성 등 시스템의 실용성과 연관하여 나타나는 자료의 특성을 수용하기 위하여, 학습과정에서 신호표현의 다양화와 부분 패턴의 의한 분류 기능 등을 개선한 신경망모델을 제안한다. 이를 위하여 퍼지 양방향 연상기억장치와 구간연산으로 일반화된 다층 신경망모델을 결합하여 혼합형 분류모형을 제시하고 그 유용성을 고찰한다. 실험은 전공분야 선택을 위한 개인의 적성분석시스템을 대상으로 구현하였다.