• Journal of Advanced Marine Engineering and Technology
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• 제24권2호
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• pp.82-89
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• 2000

에지검출은 영상인식의 첫 단계임을 동시에 영상인식의 성능을 좌우하는 아주 중요한 단계이다. 기존의 기울기연산자나 표면접합에 의한 에지검출과 달리 본 논문에서는 에지의 영역정보를 이용한 에지검출 알고리즘을 제시한다. 먼저 에지의 적합한 위치, 에지의 두께 그리고 에지의 길이에 대한 정의를 제시하고, 제시된 에지정의를 기본으로한 12개의 에지검출 윈도우와 알고리즘을 제안하였다. 제안된 12개의 윈도우는 모든 형태의 에지를 추출할 수 있는 에지검출윈도우로써 일반적으로 많이 사용되고 있는 기울기 연산자나 0점교차 연산자인 LoG 연산자보다 좋은 에지검출 성능을 보여 주었다.

• 한국콘텐츠학회논문지
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• 제17권10호
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• pp.452-462
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• 2017

본 연구는 워드프레스 서비스의 테마 검색과 커스터마이징에 대한 일반 사용자와 디자이너 사용자의 테마 사용 경험 개선을 목적으로 커뮤니티 중심의 테마 정보 서비스를 연구하였다. 본 연구의 방법은 먼저, 워드프레스 테마의 검색과 선택 과정에서 사용자의 의사 결정에 필요한 테마 정보를 도출하고 테마 정보의 체계를 구성하였다. 그리고 워드프레스 및 웹 서비스 개발 관련 유명 커뮤니티들의 커뮤니티 서비스 구조와 사용자 콘텐츠들을 분석하여 커뮤니티 기반의 테마 정보 서비스 시나리오를 도출하였고, 이를 반영하여 테마 중심의 커뮤니티 서비스 사이트 '테마-딱'을 제작, 완성하였다. '테마-딱' 서비스를 워드프레스 초보 사용자 20명을 대상으로 2주간 사용자 테스팅을 수행한 결과, 주요 서비스 중에서 가장 긍정적인 피드백을 받은 서비스는 테마 템플릿 정보와 이상형 테마 콘테스트였다. 본 연구에서 실험한 다양한 형식의 커뮤니티 콘텐츠와 사용자 참여 데이터들은 오픈 플랫폼으로서의 워드프레스 서비스에 적합한 테마 정보 서비스의 방향을 제시 하고 있다.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2007년도 춘계학술대회 논문집
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• pp.57-58
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• 2007

Nowadays, the government, nongovernmental organizations, and educational institutions have come up with a variety of policies and objectives which are concerned about the importance of public design in the city. The project for integrated street environment in Sung-Nam at this time has started with the purpose to make the citizens' life safer and wealthier, and the purpose to improve the image of the nation. In the process of modernization, we must realize the overlooked problem(the thoughtless development for the environment and the threatening of the identity about the disagreed value and esthetic sense.) as our problem. We have focused on the suggestion of the road facilities suitable for urbanization which coincides with the quiet city and the global standards rather than pursuing the local growth and meaning. Based on the New Governance Design, we have presented the liberal design process which actively accepts the experts in a variety of fields. With the language of design, 'high-tech, self-restraint, and growth', we have made a homogeneous urban factor which is ideal for time and space.

• 한국광학회지
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• 제19권2호
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• pp.116-121
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• 2008

본 연구는 2차원 PLS(Point Light Source) 배열과 디스플레이 장치의 조합을 통하여 시역형성용 광학판이 없는 3차원 영상을 재생하는 방법에 관한 것이다. PLS를 사용하여 3차원 영상을 디스플레이 하는 경우 기존의 시차장벽(parallax barrier), 렌티큘러(lenticular), 마이크로 렌즈(microlens lens) 등의 광학판을 사용할 때 발생하는 여러 가지 광학적 문제점 등을 해소할 수 있다. PLS로 사용된 LED 광원이 가져야 할 특성을 조사하였으며 PLS 배열을 통한 입체영상 디스플레이의 시역에 대해 실험을 통하여 입증 하였다.

• Fibers and Polymers
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• 제5권3호
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• pp.198-203
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• 2004

Composite films were prepared by casting the solution of polyacrylonitrile (PAN) and single wall nanotube (SWNT) in DMF subsequent to sonication. The SWNTs in the films are well dispersed as ropes with 20-30 nm thickness. Moreover, AFM surface image of the composite film displays an interwoven fibrous structure of nanotubes which may give rise to conductive passways and lead to high conductivity. The polarized Raman spectroscopy is an ideal characterization technique for identification and the orientation study of SWNT. The well-defined G-peak intensity at 1580 $cm^{-1}$shows a dependency on the draw ratio under cross-Nicol. The degree of nanotube orientation in the drawn film was measurable from the sine curve obtained by rotating the drawn film on the plane of cross-Nicol of polarized Raman microscope. The threshold loading of SWNT for electrical conductivity in PAN is found to be lower than 1 wt% in the composite film. The electrical conductivity of the SWNT/PAN composite film decreased with increasing of draw ratio due to the collapse of the interwoven fibrous network of the nanotubes with uniaxial orientation.

• 한국농촌건축학회논문집
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• 제12권3호
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• pp.11-18
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• 2010

This study tries to view the social and public roles of roads in urban structure in a renewed way, focusing on NakAn-Eupsung, which was a spontaneous settlement, not a designed city, of the many traditional villages. The most valuable meaning the alleys of traditional villages give us is the community of cooperation. Thus, this study tries to examine the features of the community in three major ways happening on the alleys of NakAn-Eupsung in three major ways. First, the features according to regional community; second, the features by social community; third, the features according to public community. Through this, we can understand the features of alleys within the building structure of traditional villages, and also we can have a chance to grasp the image of 'togetherness-of-the-public', long lost on contemporary alleys. In order to realize the ideal of sustainable residence, the techniques of housing complex project are continually being developed, and recently it is not hard to come across the flow of planning techniques taking especially community into consideration. At this point of time, it seems that various kinds of communities being made up on roads of traditional villages can present new directions and models to contemporary housing complex formation.

• Imaging Science in Dentistry
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• 제44권2호
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• pp.155-160
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• 2014

Purpose: The purposes of this study were to develop a workstation computer that allowed intraoperative touchless control of diagnostic and surgical images by a surgeon, and to report the preliminary experience with the use of the system in a series of cases in which dental surgery was performed. Materials and Methods: A custom workstation with a new motion sensing input device (Leap Motion) was set up in order to use a natural user interface (NUI) to manipulate the imaging software by hand gestures. The system allowed intraoperative touchless control of the surgical images. Results: For the first time in the literature, an NUI system was used for a pilot study during 11 dental surgery procedures including tooth extractions, dental implant placements, and guided bone regeneration. No complications were reported. The system performed very well and was very useful. Conclusion: The proposed system fulfilled the objective of providing touchless access and control of the system of images and a three-dimensional surgical plan, thus allowing the maintenance of sterile conditions. The interaction between surgical staff, under sterile conditions, and computer equipment has been a key issue. The solution with an NUI with touchless control of the images seems to be closer to an ideal. The cost of the sensor system is quite low; this could facilitate its incorporation into the practice of routine dental surgery. This technology has enormous potential in dental surgery and other healthcare specialties.

• 대한치과기공학회지
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• 제25권1호
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• pp.21-28
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• 2003

The purpose of this study was to process bio-active glass ceramic composite, reinforced with sapphire fibers, by hot press. Also to study the interface of the matrix and the sapphire fiber, and the mechanical properties. Glass raw materials melted in Pt crucible at 1300$^{\circ}C$ during 3.5 hours. The melt was crushed in ball mill and then crushed material, ground and sieved to $<40{\beta}{\mu}m$. Sapphire fibers cut (30mm) and aligned. Powder and fibers hot pressed. The micrographs show good bonding between the matrix and the fiber and no porosity in the glass matrix. This means ideal fracture phenomena. Glass is fractured before the fiber. This is indication of good fracture strength. EDXS showing aluminum rich phase and crystalline phase. Bright field image of the matrix showing crystalline phase. Also diffraction pattern of TEM showing the crystalline phase and more than one phase. Strength of the samples was determined by 3 point bend testing. Strength of the 10vol% sample was approximately 69MPa, while strength of the control sample is 35MPa. Conclusions through this study as follow: 1. Micrographs show no porosity in the glass matrix and the interface. 2. The interface between the fiber and the glass matrix show no gaps. 3. Fracture of the glass indicates characteristic fiber-matrix separation. 4. Presence of crystalline phase at high processing temperature. 5. Sapphire is compatible with bioactive glass.

• 한국의류산업학회지
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• 제13권4호
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• pp.523-530
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• 2011

This study aims to make a comparison between variables influencing female college students' body shame and appearance change intention in individualist culture(Germany) and collectivist culture(Korea, China), that which variable among individual's physical character(BMI), psychological character(public self-image), and sociocultural pressure has the biggest influence in each culture. The findings of the research are as follows. 1. The German group of female college students had the highest BMI, and there were no difference between Korean and Chinese group. Public self-consciousness, sociocultural pressure, ideal appearance attitude, body shame, and appearance change intention were highest in Korea and lowest in Germany. 2. The variables that affected body shame were powerful in the order of sociocultural pressure, appearance internalization, BMI, and appearance awareness in the Korean group of female college students. In the Chinese group, the order was sociocultural pressure, appearance internalization, and public self-consciousness. On the contrary, in the German group the order was appearance internalization, appearance awareness, sociocultural pressure, and public self-consciousness. 3. The variables that affected appearance change intention were powerful in the order of sociocultural pressure, body shame, and appearance awareness in the Korean group of female college students. In the Chinese group, the order was sociocultural pressure, body shame, and appearance awareness, and in the German group, the order was appearance internalization, body shame, and BMI.

• 한국생활과학회지
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• 제13권1호
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• pp.159-171
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• 2004

The purpose of this study was to compare the characteristic of Chanel style between modern and postmodern period. The documentary research method was used for this study. The modem period was limited from around 1920 through 1939 and the postmodern period from 1990 through present for this research. The results were summarized as follows: The characteristics of clothing style in modem period were 1) the preference of slim & straight body figure as ideal one and slim & straight clothing silhouette, 2) the high fashion image for the elite by simple & basic design, 3) the emphasis on the harmony by the unity, 4) the tendency of eliminating ornaments on clothing, 5) the discontinuation of traditional way of dress code & style, and 6) the modern style. The characteristics of clothing style in postmodern period were 1) the emphasis on erotic aspects of female body and sexy design, 2) the popularization of high fashion and certain social group's fashion, 3) the tendency of harmony by mix-match, 4) the preference of ornaments in clothing, 5) the preference of retro-fashion, and 6) the continuation of modem style.