• 기계저널
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• 제18권3호
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• pp.14-17
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• 1978

이글에서는 1. 풍력의 대체에너지 2. 풍력발전의 경제성 3. 미국에서의 풍력발전의 실적과 계획 4. 한국의 풍차개발 현황 등에 관하여 알아보았다.

• 기술사
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• 제32권6호
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• pp.68-76
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• 1999

• Design & Manufacturing
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• 제2권5호
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• pp.21-24
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• 2008

On this study, injection molding product of rectangular tray structure with thickness 0.25mm and aspect ratio(length/thickness) approximately 150 conducted. Technical aspects were reviewed on mold-die design and injection molding conditions. To have a thin-membraned plastic part, short-shot, shrinkage, twist, whitening and flash problems were considered and resolved. After measuring products, validity of this study and future improvement were discussed.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2007년도 한국컴퓨터종합학술대회논문집 Vol.34 No.1 (A)
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• pp.49-50
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• 2007

• 한국주거학회논문집
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• 제15권3호
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• pp.43-51
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• 2004

The purpose of this study is to examine the physical characteristics of the detached housing area in the housing site development district. The process of this study is to investigate the characteristics of the physical structure and the building use, then to analyze the relationship of physical structure and the building use in the aspect of the morphological characteristics. The case study focuses on the Chil-kok2, An-Siml in Taegu. The streets pattern is composited gird and loop type mixed. The block is composited by 2 lots in general. But the obscurity of organization and character of the streets, the size and shape of lots which is not fit to the building use. A whole residential characters appears high residential density ratio. so residential environment became worse. The improving level of residential environment and efficiency of land use in the detached housing area of the housing site development district, firstly the propriety of the physical structure must be considered about detached house characters, and the housing uses which fit to the physical structure are needed, and also for the concrete realization of this, the designation of district, the zoning of residential area, the guideline of the district design, and establishment of comprehensive master planning in detached housing area are needed in aspect of the housing policy. As the result of this study, it suggests several design guideline to improve housing site development.

• 농촌지도와개발
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• 제13권2호
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• pp.235-249
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• 2006

The objective of this study was to investigate the developmental level of Rural Women Leaders Federation(RWLF) which is one of the major rural women`s association in Korea. The writers designed organization measurement tool based on the reviews on the related studies and gather data from 191 memberships of RWLF through the mail questionnaire and interviews. The major findings were as follows; First, the findings shows us this organization as transition period from identification stage to expanded growth stage in developmental stage of rural women's organizations. Second, this organization focus on share of members decision making and leadership style rather than organization`s vision, strategy or organization level. In other words, this organization focus on human relations aspect rather than internal aspect of organization system. Third, this organization has high level of social evaluation of the organization, even if it has low level of personal compensation or individua's social performance. In conclusion, as long-term view-point, it is needed to help them to promote their self-control of survival ability to improve organization's vision, strategy, differentiation for achieving organizational goals. And it also needed to prepare educational programs to increase Rural Women's leadership capability understanding of organizational characteristics and its operation abilities.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2010년도 춘계학술대회 논문집
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• pp.635-636
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• 2010

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2009년도 추계학술대회 논문집
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• pp.671-672
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• 2009

• 한국심리학회지 : 문화 및 사회문제
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• 제18권1호
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• pp.79-96
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• 2012

본 연구의 목적은 한국 성인 남녀를 대상으로 미혼에 대한 인식을 알아보는 척도를 개발하는 것이었다. 이를 위해 연구 1에서는 한국 성인 미혼 및 기혼 남녀 490명(남: 244명, 여: 246명, 평균연령 = 35.32세)을 대상으로, 혼자 살 때 필요한 조건, 좋은 점(혹은 유리한 점)과 나쁜 점, 혼자 사는 것을 방해하는 요인을 물어보는 개방형 질문을 실시하였다. 내용분석 결과, 각 질문 내용은 경제적 측면, 관계적 측면, 성격적 측면, 자아관련 측면, 가족적 측면, 사회제도 측면으로 구분되었다. 연구 2에서는 연구 1에서 얻은 자료를 근거로 혼자 살 때 필요한 조건, 혼자 살 때 좋은 점, 혼자 살 때 어려운 점에 대한 문항을 구성한 후, 한국 성인 총 800명(남: 400명, 여: 400명)을 대상으로 탐색적 요인분석을 실시하였다. 그 결과, 혼자 살 때 필요한 조건은 5개요인(24문항, 총설명량: 61.7%), 혼자 살 때 좋은 점은 6개요인(29문항, 총설명량: 61.4%), 혼자 살 때 어려운 점은 6개요인(31문항, 총 설명량: 64.75%)이 추출되었다. 이 요인 구조의 적합성을 검증하기 위해 400명(남: 200명, 여: 200명)을 대상으로 확인적 요인분석을 실시한 결과, 각 인식차원에 대한 척도 모형이 적합한 것으로 나타났다. 이러한 결과를 한국 사회의 미혼 및 결혼 관련 변인들과 현상의 측면에서 논의하였다.

• International Journal of Aeronautical and Space Sciences
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• 제13권4호
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• pp.446-457
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• 2012

Aeroelastic analysis of an aircraft with a high aspect ratio wing for medium altitude and long endurance capability was attempted in this paper. In order to achieve such an objective, various structural models were adopted. The traditional approach has been based on a one-dimensional Euler-Bernoulli beam model. The structural analysis results of the present beam model were compared with those by the three-dimensional NASTRAN finite element model. In it, a taper ratio of 0.5 was applied; it was comprised of 21 ribs and 3 spars, and included two control surfaces. The relevant unsteady aerodynamic forces were obtained by using ZAERO, which is based on the doublet lattice method that considers flow compressibility. To obtain the unsteady aerodynamic force, the structural mode shapes and natural frequencies were transferred to ZAERO. Two types of unsteady aerodynamic forces were considered. The first was the unsteady aerodynamic forces which were based on the one-dimensional beam shape; the other was based on the three-dimensional FEM model shape. These two types of aerodynamic forces were compared, and applied to the foregoing flutter analysis. The ultimate goal of the present research is to analyze the possible interaction between the rigid-body degrees of freedom and the aeroelastic modes. This will be achieved after the development of a reliable nonlinear beam formulation that would validate the current results as well as enable a thorough investigation of the nonlinearity. Moreover, such analysis will allow for an examination of the above-mentioned interaction between the flight dynamics and aeroelastic modes with the inclusion of the rigid body degrees of freedom.