• 한국측량학회지
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• 제30권4호
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• pp.397-404
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• 2012

농업과 관광이 주요 산업인 제주지역은 소득 증대를 위해 노지재배에서 시설재배로의 전환이 활발하게 진행되고 있으므로 하우스재배지에 대한 지속적인 현황 파악이 필요하다. 이에 본 연구에서는 고해상도 위성영상을 이용하여 하우스재배지 탐지를 위한 효과적인 영상분류 방법을 제시하고자 하였다. Formosat-2 위성영상을 대상으로 감독분류와 규칙기반분류 방법을 적용하여 하우스재배지를 분류하였으며, 두 가지 결과를 연계하여 하우스재배지 탐지를 위한 정확도 향상 방안을 모색하였다. 각 분류 방법별 결과는 육안 탐지 결과와의 비교를 통해 정확도를 산출하였다. 연구 결과, 감독분류 방법 중 마하라노비스 거리법이 가장 높은 탐지 결과를 얻을 수 있었으며 감독분류 결과와 규칙기반분류 결과의 연계 시 탐지 정확도가 향상됨을 확인하였다. 향후 감독분류 결과와 규칙기반분류 결과의 연계 과정에 대한 추가적인 연구가 이루어진다면 하우스재배지의 효율적인 탐지가 가능할 것으로 기대된다.

• 한국컴퓨터산업학회논문지
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• 제2권2호
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• pp.181-194
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• 2001

본 연구에서는 한국복식 사이버 학습을 위한 WBI(Web Based Instruction)를 개발하여 교수-학습에 적용함으로써 학습자의 가정과 학습에 대한 태도를 긍정적으로 변화시킬 수 있도록 컨텐츠를 설계하고 구현하였다. 컨텐츠의 내용은 한국복식을 삼국시대, 통일신라시대, 고려시대, 조선시대, 개화기로 구분하여 각 시대별 복식의 변천과정과 종류, 구조적 특징을 설명하여 우리의 전통 복식 문화를 바르게 이어 나갈 수 있도록 하며, 용어검색을 만들어 학습 중에 학생 스스로 문제를 해결할 수 있는 기능을 지원한다. 개발된 사이버 학습 한국 복식컨텐츠는 현 중, 고등학교의 교육정보 시스템에 적용하여 사이버 학습을 가능하게 하고 교육현장에서 가정과 교육을 위한 지원 시스템으로 사용될 수 있다.

• 한국생활과학회지
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• 제23권6호
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• pp.1191-1204
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• 2014

Even though a Han-bok, or traditional Korean costume, should be inherited since it is invaluable part of our culture, research on Han-bok is scarce. Since the development of a Jeogori pattern, the upper garment of Korean traditional clothes, is done mostly based on the chest size, the design does not completely consider on wearer's body shape. Moreover, unless made by an expert, trial and error is almost always necessary to improve the fit of the clothes. In this research, a Jeogori pattern was suggested that improves the fit based on the shape of the upper back(straight or bent) of a female in her late 20s who often wears a Han-bok and is comfortable when moving. Using a 3D virtual clothing system, the optimum pattern was selected based on the body shape. The final selection was made, and each subjects tried the garment on to evaluate the comfort when moving, along with its appearance, based on a seven point Likert scale. As a result, for a straight body shape, the optimum ease for the front bust width was 2.5cm, and that for the back bust width was 2.0cm. The optimum center back dart was 1.0cm. The optimum Geodae width was 7.6cm, and the optimum back Geodae point was 2.0cm. For the bent body shape, the optimum ease for the front and back bust was 2.0cm. The optimum Geodae width was 8.4cm, and the optimum back Geodae point was 1.5cm. Furthermore, if the Hwajang slope was set at half of the vertical distance between the laterals of the neck and shoulder, a fitted silhouette appeared, which is preferred nowadays. In the appearance evaluation, the final pattern designed in this research received higher scores than the original design(straight; p<.001, bent; p<.05). The results of the evaluation of the comfort when moving also showed higher scores for the final pattern that was designed.

• Journal of Korean Neurosurgical Society
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• 제42권2호
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• pp.118-124
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• 2007

Objective : Adipose tissue is derived from the embryonic mesoderm and contains a heterogenous stromal cell population. Authors have tried to verify the characteristics of stem cell of adipose derived stromal cells (ADSCs) and to investigate immunohistochemical findings after transplantation of ADSC into rat brain to evaluate survival, migration and differentiation of transplanted stromal cells. Methods : First ADSCs were isolated from human adipose tissue and induced adipose, osseous and neuronal differentiation under appropriate culture condition in vitro and examined phenotypes profile of human ADSCs in undifferentiated states using flow cytometry and immunohistochemical study. Human ADSCs were transplanted into the healthy rat brain to investigate survival, migration and differentiation after 4 weeks. Results : From human adipose tissue, adipose stem cells were harvested and subcultured for several times. The cultured ADSCs were differentiated into adipocytes, osteoctye and neuron-like cell under conditioned media. Flow cytometric analysis of undifferentiated ADSCs revealed that ADSCs were positive for CD29, CD44 and negative for CD34, CD45, CD117 and HLA-DR. Transplanted human ADSCs were found mainly in cortex adjacent to injection site and migrated from injection site at a distance of at least 1 mm along the cortex and corpus callosum. A few transplanted cells have differentiated into neuron and astrocyte. Conclusion : ADSCs were differentiated into multilineage cell lines through transdifferentiation. ADSCs were survived and migrated in xenograft without immunosuppression. Based on this data, ADSCs may be potential source of stem cells for many human disease including neurologic disorder.

• 한국인터넷방송통신학회논문지
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• 제15권5호
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• pp.139-145
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• 2015

본 논문은 무선 센서 네트워크의 계층형 라우팅 프로토콜 중 대표적인 알고리즘인 LEACH(Low Energy Adaptive Clustering Hierarchy)의 원거리 전송 시의 에너지 효율이 급감하는 현상을 개선하기 위하여 DL-LEACH(Dual-hop Layered LEACH) 프로토콜을 제안한다. 이는, 데이터 전송에 듀얼 홉(dual hop : 싱글 홉 + 멀티 홉) 방식을 도입하여 근거리 전송에서는 부분적 싱글 홉 방식을, 원거리 전송에는 클러스터 헤드 간의 멀티 홉 전송 방식을 도입하였다. 제안된 DL-LEACH는 듀얼 홉 전송 방식을 사용하여 원거리 전송의 경우에는 클러스터 헤드의 에너지 소모를 줄이고, 근거리 전송의 경우에는 전송 루틴을 단순화하고 전송 거리를 줄여 센서 노드의 에너지 효율을 증가시켰다. 그러므로 일반적인 LEACH에 비교하여 넓은 센서 필드에 적합하다. 제안된 방법을 시뮬레이션을 통하여 검증하였다.

• 말소리와 음성과학
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• 제5권2호
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• pp.33-41
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• 2013

This is a follow-up study on Han and Kang (2013) which argued that the Euclidean distances between /o/ and /u/ in Seoul Korean decreased in the first syllable position as speakers were among younger female speakers but not for male speakers, whereas in the second syllable position both gender groups showed a cross-generational decreasing effect of the Euclidean distance between /o/ and /u/. This study normalized the same data in Han and Kang (2013) which measured 12 speakers (six males and six females) for each Age group and investigated the spectral changes vowels /o/ and /u/ between age and gender, using the log-mean normalized statistical results. This study also examined overlap fraction values generated in SOAM 2D ($F1{\times}F2$) (cf. Wassink, 2006), which may also indicate the proximity of two vowels in question. The results showed that /o/ and /u/ vowels were making closer with /o/ raising for female speakers in $V_1$ and $V_2$ positions but only in the $V_2$ position for male speakers. That is, females led the upward movement of peripheral /o/ vowel, just like the raising of 'e' and 'o' in New York City (Labov, 1991). The results also showed that younger speakers used a rather narrow vowel space for the vowels. This also contributed to the proximity of the vowels /o/ and /u/, resulting in rather large overlap fraction values for younger speakers between these two vowels.

• 한국어류학회지
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• 제12권4호
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• pp.244-249
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• 2000

국내에 이식된 유럽산 및 북미산 실뱀장어와 극동산실뱀장어의 구분을 위해 계수 계측 형질을 비교한 바 다음과 같은 결과를 얻었다 A rostrata는 등지느러미 기점거리가 걸고 척추골수가 현저히 적어 A. anguilla와 A. japonica로부터 구분되었다. 한편 A. japonica는 뒷지느러미 기점거리가 다른 두 종에 비해 짧아 통계적으로 구분되었다. 성장에 따른 형태적 변화를 조사한 결과 A. rostrata는 두장, 등지느러미기점거리의 비율이 두 종과 다른 변화 경향을 보여 계통학적으로 주목되었다. 이러한 결과를 토대로 A. japonica, A. anguilla 및 A. rostrata는 등지느러미 기점거리, 뒷지느러미 기점거리, 척추골수의 특징을 조합하여 종간 구분이 가능한 것으로 나타났다.

• 한국인구학
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• 제23권2호
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• pp.189-207
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• 2000

이 연구는 젊은 기혼여성과 이들과 별거하고 있는 시부모 및 친정부모간의 접촉정도와 그에 영향을 미치는 요인들을 살펴보고 있는데, 그 초점을 시부모와의 근접성이 친정부모와의 접촉에 어떤 영향을 미칠 것인지, 그리고 역으로 친정부모와의 근접성이 시부모와의 접촉에 어떤 영향을 미칠 것인지에 두면서 두 가지의 시나리오를 설정하고 있다. 우선, 전통적 효 규범에 따른 시나리오에 의하면, 친정부모와의 지리적 근접성이 시부모와의 접촉빈도에 영향을 미치지 못할 것으로 또한 시부모와의 근접성은 친정부모와의 접촉빈도와 관계가 없을 것이라 예상된다. 다음으로, 경쟁적 시나리오에 의하면, 시부모인지 친정부모인지에 관계없이 어느 한쪽의 부모와 근접할수록 다른 쪽의 부모와의 접촉은 적을 것이라 예상된다. 1994년도에 실시된 <전국 출산력 및 국민건강조사>자료를 이용해 세대간의 상호방문빈도에 관해 회귀분석을 실시해 본 결과, 경쟁적 시나리오를 지지하고 있는 것으로 나타났다. 이러한 방문빈도분석의 결과는 시부모에 대한 기혼여성의 관심과 헌신을 규정해온 전통적인 가족규범이 약화되어지면서, 친정부모와 시부모가 좀 더 동등한 입장에 가까워지고 있음을 시사한다고 볼 수 있다.

• 미술이론과 현장
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• 제13호
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• pp.185-213
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• 2012

Charles Stankievech's 2011 installation LOVELAND includes a wall-sized screen depicting video footage of a barren arctic landscape in an enclosed room, painted and bathed in white light, that appears as an extension of the imaged environment. A melodic and industrial musical score emanates from multiple sound panels and as the music increases a cloud of purple smoke becomes visible on the horizon line in the distance and gradually advances toward the viewer until it completely fills the screen. The smoke then remains, rushing about madly and lapping at the border between the screen and the room before it suddenly subsides and the spectator is again left with the desolate landscape. The entire process takes a mere five minutes and then, fixed on an endless loop, begins again. This paper positions LOVELAND as an attempt to simulate a sublime experience of the end of the world through a transposition of the Arctic atmosphere into the gallery space. Encompassing a discussion of the historical and contemporary significance of the Arctic in popular culture, aesthetics and environmental politics, it is suggested that Stankievech employs an apocalyptic trope in reference to the unstable position of the North in the current political and ecological climate. Revisiting critiques of modernist exhibition practices and investigating the perceptual and temporal dimensions of the work, this analysis focuses primarily on the experience of the installation's spectator. Visually, aurally and phenomenologically immersed, the viewer is made subject to, and implicated in, the events unfolding on the screen and within the space. Due to the looping of the video footage, this paper argues that the apocalypse imaged in LOVELAND is presented as an endless event - incessantly enacted, yet infinitely deferred - and that the spectator is enveloped in an uncertain and unceasingly extended present moment.

• Journal of Nutrition and Health
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• 제35권8호
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• pp.886-895
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• 2002

Introduction and application of virtual education has been rapidly increased in these days. A variation of information communication technology has an effect on education in interconnect with network as internet in the world that exceed the limit of time and regional. Computer and network communication technology through the medium of internet make an entrance cyber education as a new education paradigm. It must be affective on learner who have various educational characteristics and requirements. It begins to appear quality, quantity improvements of knowledge and the development of information technology that web based cyber education. This study was conducted to develop the web based education program and to evaluate the effectiveness of learning satisfaction and accomplishment and to compare the cyber lecture system with the traditional lecture system During the second semester of 2001, this study was investigated 317 registered students in a "Food and Culture" class at Kyungwon University. The data were obtained from pre and post-study with self-administered questionnaire. The evaluation and satisfaction score of students who were registered in cyberclass was negative tendency to compare pre with post-test scores, because of insuffciency of computer-aided lecture system. The major problem was inconvenient in checking system for connecting times in cyberclass which was one of evaluation point in final score. Another problem was frequently disconnection during cyber studying and not to concentrate each time in the cyber lecture because of eye fatigue, boring due to less interesting contents than other newly developed web-site. The students was prefer to mix type of the cyber and traditional lecture type class. The result of final score an each class, the score of cyber class (71.36 $\pm$ 22.44) was significantly lower than other groups (mixed type : 76.66 $\pm$ 19.99, traditional type :79.17 $\pm$ 15.72) (p < 0.05). Cyber class was attempted to present a useful and interesting teaching and learning tool which can be applied successfully in a longer term. The result suggest that various teaching and learning strategies should be developed considering the fact that the student learn alone most in time.t in time.