• 한국학교ㆍ지역보건교육학회지
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• 제4권
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• pp.79-95
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• 2003

This dissertation aims to analyze various safety accidents taking place during physical education class according to physical education teacher's value orientation, to identify teacher's value orientation that can minimize safety accidents, and to provide basic materials for safe and smooth class management. For this purpose, data have been collected from 261 physical education teachers at some middle and high schools in G City in Kyung-Ki Province and Busan Metropolitan City. The materials were treated as follows: The variables on demographic characteristics of physical education teachers are determined by t-test ; The analysis of one-way ANOVA and relationship between value orientation and safety accident prevention activities was conducted through Pearson's linear correlation analysis and multiple regression; The analysis of the relationship between value orientation and actual conditions of safety accidents was conducted through logistic regression. First, there is almost no awareness difference of physical education teachers' value orientation according to demographical variables. The value orientation physical education teachers consider to be the most important is, however, mainly 'mastery of disciplinary lesson.' There is a statistically significant difference in safety accident prevention activities according to demographical variables. Teachers' focuses in class contents showed a significant difference according to teaching experience and working area, while the dependency on facility has a significant difference according to teaching experience and school type. Second, there is no correlation between physical education teacher's value orientation and safety accident prevention activities because there is virtually no statistically significant difference between them. It means that safety accident prevention activities are not related with on which teachers place emphasis among mastery of disciplinary lesson, social reconstruction, self-realization, ecological integration and value orientation on learning process. Third, the analysis of safety accident prevention activities according to physical education teachers' value orientation revealed that the lower value orientation in social reconstruction is, the more safety accidents teachers experience. It is also found that crashes among students, ball games and leg injuries are inter-related with social reconstruction in value orientation, over-motivation and unskilled motor function ; athletic sports with value orientation on learning process and safety prevention training ; unskilled motor functions with value orientation in ecological integration and disobedience to teacher's directions ; winter accidents with mastery of disciplinary lesson in value orientation. In conclusion, the research indicates that physical education teacher's value orientation according to demographical variables didn't show any significant difference, while one according to safety accident prevention activities showed significant difference. Besides, physical education teachers' value orientation is not related to safety accident prevention activities, but the relationship between value orientation and actual conditions of safety accidents showed correlations according to each variable. Especially, teachers with lower value orientation in social reconstruction experienced more safety accidents. Therefore, physical education teachers can manage physical education class more safely with more emphasis on value orientation in social reconstruction.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1999년도 추계학술대회논문집
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• pp.149-152
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• 1999

The effect of initial orientation on the microstructure and texture evolution of two ferritic stainless steels was investigated. the columnar and equiaxed crystal specimens which were prepared from continuous casting slab were hot rolled annealed cold rolled and annealed respectively. The rolling and recrystallization textures at each process stage were examined by orientation distribution function (ODF) and electron back-scattered diffraction (EBSD); The observation showed that the orientation density of the $\alpha$-fibre of hot rolled band of columnar crystal specimen was more pronounced than that of the equaxed one at the center layer. Nevertheless the cold rolled textures of Type 430 steel have demonstrated a rather similar development . Compared to Type 430 steel the development of the $\alpha$-fibre in the center layer of Type 409L steel was much more pronounced. The relation between texture evolution and ridging behaviour has been discussed.

• 한국세라믹학회지
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• 제51권1호
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• pp.32-36
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• 2014

The effects of an amphiphilic agent and the orientation of BN on the microwave dielectric properties of BN / polyvinyl butyral (PVB) composites were investigated as a function of the BN content in volume fractions from 0.1 to 0.5 ($V_f$). The plate-shaped BN samples were oriented in the PVB matrix by physical processes, in this case tape casting and laminate methods. With an increase in the BN content, the dielectric constant (K) increased because the K of BN was higher than that of the PVB. At the same BN content, composites with an in-plane orientation of the BN showed a higher dielectric constant than that of composites with a transverse orientation of the BN because the ceramics were oriented parallel to the electric field. All of the composites showed nearly constant K values ranging from 1 to 9.4 GHz, indicating good frequency stability over a wide frequency range. At the same frequency, the K values of the composites increased with an increase in the BN content.

• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2003년도 춘계학술발표대회 논문집
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• pp.202-205
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• 2003

Investigated whether fiber orientation situation of fiber reinforcement macromolecule composition board and the fiber inclusion rate are perpendicular and horizontal direction tensile strength and some correlation. Fiber orientation situation of tensile strength of 0 direction of composition board increased changelessly by aeolotropy in isotropy. Tensile strength of 90 direction that is isotropy and tensile strength of 0 direction that is aeolotropy agreed almost. Get into aeolotropy, the reinforcement rate of fiber decreased. When load interacts for width direction of reinforcement.

• The Journal of the Acoustical Society of Korea
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• 제27권3E호
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• pp.77-83
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• 2008

In the process of the sonar image textures produced, the orientation and scale factors are very significant. However, most of the related methods ignore the directional information and scale invariance or just pay attention to one of them. To overcome this problem, we apply Gabor wavelet to extract the features of sonar images, which combine the advantages of both the Gabor filter and traditional wavelet function. The mother wavelet is designed with constrained parameters and the optimal parameters will be selected at each orientation, with the help of bandwidth parameters based on the Fisher criterion. The Gabor wavelet can have the properties of both multi-scale and multi-orientation. Based on our experiment, this method is more appropriate than traditional wavelet or single Gabor filter as it provides the better discrimination of the textures and improves the recognition rate effectively. Meanwhile, comparing with other fusion methods, it can reduce the complexity and improve the calculation efficiency.

• 한국세라믹학회지
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• 제31권4호
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• pp.457-463
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• 1994

The growth condition of highly oriented textured diamond film on a (100) Si substrate was investigated as a function of texture orientation. The growth process consisted of biased enhanced nucleation (BEN) and texture growth. The substrate was under the plasma of 6% CH4-94% H2 with negative bias of 200V during the BEN which grounded during the texture growth. The texture orintation changed from <100> to <110> by increasing substrate temperature. The nearly perfect match between textured diamond grains and the Si substrate could be obtained under the condition of <100> texture. The degree of tilt mismatch increased with the increase of deviation of texture orientation from <100>. The degree of twist mismatch appeared to increase abruptly beyond the critical deviation of texture orientation from <100> because the nuclei having the same orientation as the substrate were no more preferred grains for texture formation.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2000년도 봄 한국섬유공학회 학술발표회 논문집(Proceedings of the Korean Textile Conference)
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• pp.169-172
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• 2000

• 한국전산구조공학회논문집
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• 제22권6호
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• pp.639-646
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• 2009

고유동 강섬유보강 모르타르는 타설과정에서 특정한 섬유 방향성 분포를 가질 수 있으며, 이에 따라 재료의 인장거동 특성에 영향을 미칠 수 있다. 본 연구에서는 고유동 강섬유보강 모르타르의 타설단계에서의 유동에 따른 강섬유의 섬유 방향성 분포의 변화를 해석적으로 구하였다. 해석결과에 따르면 180mm 간격으로 나란히 놓여진 두 평판 사이에 흐르는 모르 타르의 전단흐름에 의한 섬유의 방향성 변화는 초기 150mm이내에서 크게 발생하는 것을 확인할 수 있었으며, 이후에서는 방향성 분포의 경향은 크게 변하지 않으며, 다만 흐름방향에 나란한 섬유의 밀도가 집중적으로 커지는 것을 볼 수 있었다. 섬유의 방향성과 섬유보강 복합체의 인장거동과 밀접한 관련성을 고려할 때, 이와 같은 방향성의 예측을 바탕으로 유동에 따른 고유동 강섬유보강 모르타르의 인장거동 변화의 예측이 가능할 것이다.

• Asia pacific journal of information systems
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• 제17권3호
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• pp.131-146
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• 2007

Recently, the role of IT service providers has been enlarged from managing a single function or system to reconstructing entire information management processes in new ways to contribute to shareholder value across the enterprise. This movement toward extensive and complex outsourcing agreements has been driven by the assumption that outsourcing information technology functions is a reliable approach to maximizing resource productivity. Hiring external IT service providers to manage part or all of its information-related services helps a firm focus on its core business and provides better services to its clients, thus obtaining sustainable competitive advantage. This practice of focusing on the strategic aspect of outsourcing is referred to as strategic sourcing where the focus is capability sourcing, not procurement. Given the importance of the strategic outsourcing, however, to our knowledge, there is little empirical research on the relationship between the strategic outsourcing orientation and outsourcing performance. Moreover, there is little research on the factor that makes the strategic outsourcing effective. This study is designed to investigate the relationship between strategic IT outsourcing orientation and IT outsourcing performance and the process through which strategic IT outsourcing orientation influences outsourcing performance, Based on the framework of strategic orientation-performance and core competence based management, this study first identifies core competency orientation as a proper strategic orientation pertinent to IT outsourcing and IT outsourcing process management capability as the mediator to affect IT outsourcing performance. The proposed research model is then tested with a sample of 200 firms. The findings of this study may contribute to the literature in two ways. First, it draws on the strategic orientation - performance framework in developing its research model so that it can provide a new perspective to the well studied phenomena. This perspective allows practitioners and researchers to look at outsourcing from an angle that emphasizes the strategic decision making to outsource its IT functions. Second, by separating the concept of strategic orientation and outsourcing process management capability, this study provides practices with insight into how the strategic orientation can work effectively to achieve an expected result. In addition, the current study provides a basis for future studies that examine the factors affecting IT outsourcing performance with more controllable factors such as IT outsourcing process management capability rather than external hard-to-control factors including trust and relationship management. This study investigates the major factors that determine IT outsourcing success. Based on strategic orientation and core competency theories, we develop the proposed research model to investigate the relationship between core competency orientation and IT outsourcing performance and the mediating role of IT outsourcing process management capability on IT outsourcing performance. The model consists of two independent variables (core-competency-orientation and IT outsourcing process management capability), and two dependent variables (outsourced task complexity and IT outsourcing performance). Comprehensive data collection was conducted through an outsourcing association. The survey data were analyzed using a structural analysis method. IT outsourcing process management capability was found to mediate the effect of core competency orientation on both outsourced task complexity and IT outsourcing performance. Further analysis and findings are discussed.

• 전자공학회논문지
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• 제51권11호
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• pp.66-72
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• 2014

Histogram of oriented gradient (HOG) 특징은 영상 기반 보행자 인식에서 널리 사용되고 있다. HOG 특징을 이용한 보행자 인식의 인식률을 높이는데 가장 중요한 역할을 하는 것은 보간 기술이다. HOG 특징 연산에 보간 기술을 적용하기 위해서는 각 픽셀의 기울기 방향에 가장 근접한 두 개의 기울기 방향 bin과 가중치를 계산해야 한다. 따라서 본 논문에서는 HOG 특징 연산에 적용하기 위한 효율적인 기울기 방향 bin 및 가중치 연산 회로를 제안한다. 제안하는 회로는 탄젠트 함수와 나눗셈 연산을 피하기 위해 미리 계산된 값을 테이블로 지정하여 사용하였으며, 탄젠트 함수와 가중치 값의 특성을 이용함으로써 회로 내 테이블의 크기를 최소화하였다. 또한 처리 속도 향상을 위해 파이프라인 구조를 적용하였으며, 효율적인 coarse 및 fine 탐색 방법을 적용하여 각 픽셀에 대한 기울기 방향 bin과 가중치를 두 클락 사이클 내에 계산한다. 본 논문에서 제안하는 회로는 $1^{\circ}$ 단위로 기울기 방향을 계산하여 기울기 방향 bin과 가중치를 모두 결정하기 때문에 HOG 특징을 위한 보간 기술에 적용되어 높은 인식률을 제공하기 위해 사용될 수 있다.