• 한국군사과학기술학회지
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• 제25권4호
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• pp.339-346
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• 2022

The importance of stealth technology is increasing in modern warfare, and Radar Cross Section(RCS) is widely used as an indicator of stealth technology. It is useful to measure RCS using an image-based near-field to far-field transformation algorithm in short-range monostatic conditions. However, the near-field measurement system requires a longer measurement time compared to other methods. In this work, it is proposed to reduce the measured data using an interpolation method in azimuth angular domain. The calculated far-field RCS values according to the sampling rate is shown, and the performance of the algorithm applied with interpolation in the angular domain is presented. It is shown that measurement samples can be reduced several times by using the redundancy in the angular domain while producing results similar to the conventional method.

• 분석과학
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• 제24권6호
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• pp.460-466
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• 2011

얇은 유리판 위에 정렬된 지질 이중막에 작용하는 항균성 펩타이드 magainin 2의 작용활성을 고체 핵자기 공명 분광법을 이용하여 조사하였다. 수화에 따른 지질 이중막의 파괴정도를 파악하기 위해 두 가지 수화 상태에서 실험이 이루어졌다. 95%의 상대 습도에서 수화된 지질 이중막에서는 약 15% 정도의 지질 이중막이 파괴되었으며, 완전히 수화된 지질 이중막에서는 약 20% 정도의 지질 이중막이 파괴되었다. 두 가지 시료 제조방법에 따른 지질 이중막 파괴 정도의 비교를 통해, 항균성 펩타이드의 지질 이중막 결합과정이 지질 이중막 파괴에 중요한 변수임을 알 수 있었다.

• IEIE Transactions on Smart Processing and Computing
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• 제3권1호
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• pp.10-18
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• 2014

From the perspective of reducing the sampling cost of color images at high resolution, block-based compressive sensing (CS) has attracted considerable attention as a promising alternative to conventional Nyquist/Shannon sampling. On the other hand, for storing/transmitting applications, CS requires a very efficient way of representing the measurement data in terms of data volume. This paper addresses this problem by developing a measurement-coding method with the proposed customized Huffman coding. In addition, by noting the difference in visual importance between the luma and chroma channels, this paper proposes measurement coding in YCbCr space rather than in conventional RGB color space for better rate allocation. Furthermore, as the proper use of the image property in pursuing smoothness improves the CS recovery, this paper proposes the integration of a low pass filter to the CS recovery of color images, which is the block-based ${\ell}_{20}$-norm minimization. The proposed coding scheme shows considerable gain compared to conventional measurement coding.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.17-22
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• 2009

In this paper, we discuss two fundamental issues of hybrid scene representation: constructing and rendering. A hybrid scene consists of triangular meshes and point-set models. Consider the maturity of modeling techniques of triangular meshes, we suggest that generate a point-set model from a triangular mesh might be an easier and more economical way. We improve stratified sampling by introducing the concept of priority. Our method has the flexibility that one may easily change the importance criteria by substituting priority functions. While many works were devoted to blend rendering results of point and triangle, our work tries to render point-set models and triangular meshes as individuals. We propose a novel way to eliminate depth occlusion artifacts and to texture a point-set model. Finally, we implement our rendering algorithm with the new features of the shader model 4.0 and turns out to be easily integrated with existing rendering techniques for triangular meshes.

• 정보처리학회논문지B
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• 제10B권6호
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• pp.711-718
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• 2003

얼굴 인식 시스템과 표정인식 시스템과 같은 고차원 처리를 수행하는 시스템의 전처리 과정으로써 이미지 영역 내에서 얼굴을 추적하는 것은 중요한 과정이다. 본 논문에서는 피부색과 얼굴의 형태 정보를 단서로 하는 CONDENSATION 알고리즘을 사용하여 얼굴의 위치를 추적하였다. 컬러의 가중치와 형태의 가중치를 결합시키는데 어려움이 있으므로 각각을 단서로 사용하는 두 개의 추적기를 가진 시스템을 제안한다. 제안된 시스템은 복잡한 배경, 피부색의 물체가 이미지 내에 존재하는 경우, 다른 얼굴이 이미지 내에 존재하는 경우 모두에 대해서 훌륭한 성능을 보여 주었다.

• The Journal of Asian Finance, Economics and Business
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• 제8권7호
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• pp.313-322
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• 2021

This study aims to analyze the influence of religiosity, spiritual leadership, and work-life balance and its impact on innovative behavior through the mediating effect of employee engagement on the state-owned sharia bank of Central Java Province. The total sample of this study is 226 respondents taken from state-owned sharia bank in 6 Regencies/Cities in the former Karisedenan of Central Java. Samples are taken using a cross-sectional approach. The sampling technique is using the division of regions based on clusters (cities) and is carried out using a purposive sampling method. The results indicate that the indirect influence of all independent variables on innovative behavior through the mediating effect of employee engagement is found to be significant. This study views employee engagement from the perspective of religiosity-based social exchange theory so that religious values in the interaction relationship can be fairly applied and respected by the employees of the state-owned sharia bank. Managers can socialize the importance of spirit behavior to employees so that it can be their everyday attitude and becomes their guide for work. Leaders can become role models in straightening intentions while working as well as conditioning the conscience to always think positively at work by strengthening work engagement in sharia banking institutions.

• 한국가정과교육학회지
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• 제9권2호
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• pp.69-85
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• 1997

The purpose of this study was to identify the important contents from teachers’, parents’and students’view points based on the sixth Home Economics textbook contents, to apply these results at school settings and to provide the materials as a basis for the next curriculum revision. Subjects were 59 teachers, 253 parents, and 389 students from 3 cities and 5 counties in CholaBukDo. A questionnaire which was made by the researcher was used as an instrument for this study. The results are as follows： Of 32 contents on Family life subarea, all the teachers, the parents and the students put the emphasis on sex such as pregnancy, purity, sex-ethics, etc. This result means that middle-school students emphasized the sexual identity formation and this was also a common concern about adolescents in our society. Of 37 contents of Managing home resource and Consumer life subarea, teachers though the environment pollution is an important subject and parents and students thought finding a method to conserve good environment were more important. This result reflects their concern on the environment. Of 49 contents on Dietary life, teachers and parents emphasized “the importance of nutritive elements”which is basic on their dietary life and students were more interested in “adolescence and growth and development among adolescents’nutritional characteristics and problems”which is more related to their current life. Of 40 contents on Clothing life subarea, while teachers put the emphasis on the method how they can buy ready-made clothes, parents and students wanted them to teach what kind of clothes are suitable for themselves. Of 18 contents on Residing life subarea, teachers emphasized the importance of ventilation for adjusting the room environment and students were more interested in the effective use of the residing space. By finding out what kinds of Home-economics contents are important from the view point of teachers, parents and students, this study can be a useful resource for the next curriculum revision and for selecting contents of a new-coming text book. However, restricted sampling must be considered and further studies which cover the whole area might be needed.

• 융합보안논문지
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• 제14권6_2호
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• pp.63-72
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• 2014

이 연구는 경찰공무원의 조직문화와 직무특성 및 직무지속의지를 규명하는데 있다. 이 연구는 2012년 수도권소재(서울) 경찰공무원들을 연구대상으로 선정한 후 판단표집법(judgment sampling method)을 이용하여 최종분석에 이용된 사례 수는 총 187명이다. 분석방법은 SPSSWIN 18.0을 이용하여 빈도분석, 요인분석, 신뢰도분석, 다중회귀분석 등을 실시하였다. 결론은 다음과 같다. 첫째, 경찰공무원의 조직문화는 직무특성에 영향을 미친다. 즉, 개발합의적 문화, 위계적 문화가 형성될수록 피드백은 증대되며, 위계적 문화, 합리적 문화가 형성될수록 직무중요성은 높다. 또한, 개발합의적 문화가 형성될수록 자율성은 높다. 둘째, 경찰공무원들의 조직문화는 직무지속의지에 영향을 미친다. 즉, 개발합의적 문화가 형성되면 직무기대만족은 증대 되는 반면 고의적불성실은 감소한다. 또한 위계적 문화가 형성될수록 위기지각 행동은 증가한다. 셋째, 경찰공무원의 직무특성은 직무지속의지에 영향을 미친다. 즉, 피드백과 직무중요성이 부각되면 직무기대만족은 증대되는 반면, 기능다양성은 감소한다. 또한 피드백 기능이 부각되면 위축요인을 감소한다. 직무중요성을 높게 인식할수록 고의적불성실을 증대되는 반면, 기능다양성은 감소한다. 기능다양성을 높게 인식할수록 대안기대는 증가하며, 직무중요성, 자율성, 기능다양성을 높게 인식할수록 위기지각은 증대된다.

• 한국조경학회지
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• 제30권2호
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• pp.12-22
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• 2002

This study examines the visitors'evaluations of tourism resources in Insa-dong, which the Seoul metropolitan government has improved recently. This study adopted the method of Importance-Performance Analysis by collecting data through questionnaires. A random sampling of visitors to Insa-dong was conducted in June and July,2001. The survey included questions on the physical and psychological components of Insa-dong's tourism resources. In the case of physical components, eight factors(ancient arts shop, art gallery, atelier, calligraphy shop, pottery arts, traditional tea house, antique shop, traditional clothes) out of thirteen were categorized as 'keeping up the good work'. None of the Physical components was shown as 'low priority'or'possible overkill'. In particular, four factors(restaurant, heritage, Korean-style house and alley, traditional cultural festival) need to be impoved most urgently in terms of visitors'satisfaction. Survey results realize them as high priority in importance but low in performance, thereby designated as, 'concentrate here'. An image of the 'street' showed to be high in importance and identical in performance, so can be categorized between'keeping up the good work'and 'concentrate here'. The results show that unusual outdoor spaces and the festivals of Insa-dong have a significant meaning to the visitors. In the case of psychological components, three factors(general atmosphere experience of unusual atmosphere, appropriateness of stroll time) out of seventeen were categorized as 'keeping up the good work'. Ore factor (shopping) was designated as 'low priority'and not found to be 'possible overkill'. Thirteen factors (various events, possibility of various activity, various flood, richness of play, new experience, education cultural inheritance, parking facilities, resting places, green spaces, meeting places, guide map and information, cleanliness of facilities/convenience) need to be improved mast urgently in terms of visitors' fulfillment. They are perceived as areas of 'concentrate here'. This confirms that attractive events are essential for the recent visitor satisfaction. Furthermore, visitors are not satisfied with its amenity and acccss in Insa-dong despite the improvements. In conclusion, positive impressions, both physical and psychological, should be maintained while factors mentioned to be lacking should be prioritized in order of necessity to improve the image of Insa-dong and solutions need to be found and implemented. The results of this study would be helpful in the planning and management of nsa-dong considering the visitors'requirements.

• 근관절건강학회지
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• 제13권2호
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• pp.108-118
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• 2006

Purpose: The purpose of this study was to examine comparison in the frequency and importance of nurse's job in new graduate nurses working in musculoskeletal ward. Method: A descriptive design was used with convenience sampling of 72 new graduate nurses working in musculoskeletal ward of the 2 hospitals with over 500 beds. Data were collected using a structured questionnaire. Results: 1) The total score for frequency of nurse's job was $2.57{\pm}.41$ and the total score for importance of nurse's job was $3.00{\pm}.37$. 2) The most frequent category was to manage for a medication and the most frequent item was to administer a medication in the order. 3) The most important category was to control of tissue perfusion and the most important item was to keep the aseptic techniques. 4) The frequencies among the work places were different significantly in 3 categories. 5) The importances among the work places were different significantly in 2 categories. Conclusion: New graduate nurses perceived the importance than the frequency of nurse's job. Also check or analysis the vital sign and nurses job associated with medication were higher score. Therefore, further research is needed to develop the educational strategies to strengthen not only theory also practice.