• Journal of Gifted/Talented Education
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• v.21 no.3
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• pp.683-702
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• 2011

The purpose of the study is to explore the justification and the possibility of convertgent gifted education through science and arts. Because the nature of art make up the base of each discipline and the creative talents in the heart of gifted education can be achieved through arts education. In order to achieve the purpose of these studies, three aspects have been explored. First, the relevance between the ontological nature of arts and gifted education discussed in philosophical and aesthetic point of view was explored. Second, the practical possibility was confirmed through an analysis of previous studies about the science and arts for gifted education. Finally, by looking at today's social and cultural phenomenon and future talent, it was argued that the development of convergent talent must be needed in the future. This paper will be a springboard for follow-up study to prove the feasibility of convergent gifted education through identifying factors in creative thinking process of gifted students in science and arts. And views of convergent gifted education with artistic will be expanded further and newly recognized. In addition to, it is expected that this study will help the establishment and operation Arts Gifted Education Institute in University and Science and Arts Gifted School.

• Journal of fish pathology
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• v.11 no.1
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• pp.13-22
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• 1998

To know the features of Amyloodinium sp. parasitized in Black seabream, Acanthopagrus schlegeli, morphology and reproduction type of the parasite were investigated. Infection mode and histopathology of the parasites were also studied. In the developmental and morphological observation, the parasite passed through parasitic and non-parasitic phases with three developmental stages termed trophont, tomont, and dinospore. The trophont, 30-$80{\mu}m$ ovoidal or pyriform, for the vegetative stage had a spherical nucleus with $1.5{\mu}m$ in diameter, many food vacuoles and starch grains in cytoplasm. The tomont, 80-$90{\mu}m$ spherical, for the reproductive stage resorbed a stalk, secreted a cyst wall and reproduced within it. A dinospore, small 10-$15{\mu}m$ biflagellated, for the infestation stage had a stigma. The parasite was propagated for 15 days by serial passage in Korean rockfish (Sebastes schlegeli) at $25{\pm}1^{\circ}C$. Trophonts began to detach from the fish about 3 days after infection and was completed within 5 days at $25{\pm}1^{\circ}C$. It took from 3 to 5 days to reproduce at the same temperature. Reinfected fish showed that parasites penetrated under the epithelia of gill filament and gill lamellae causing hyperplasia and degeneration at infected area.

• The korean journal of orthodontics
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• v.28 no.1 s.66
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• pp.1-15
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• 1998

Adult wound healing is accompanied with inflammation and eventual scar formation, whereas fetal wounds heal rapidly by mesenchymal proliferation without significant inflammatory cell participation and with minimal or no scar formation. The cellular mechanisms underlying these differing forms of wound healing are unknown but the extracellualr matrix through its effects on cell function, may play a key role. Therefore the purpose of this study is to investigate the spatial and temporal deposition of several component of extracellular matrix, which are known to be involved with scar formation, in the artificially created cleft lip wound healing of fetuses. The author had undergone hysterotomy and created cleft lip-like defects on fetuses of New Zealand White Rabbit in mid-third trimester(24 days). Fetuses were divided into the repaired group, the unrepaired group and the sham-operated control group. At 1, 2, 3, 5, 7 days after procedure, fetuses were obtained by Caeserem section. After documenting the viability of fetuses, they were photographed to compare size and facial morphology and sectioned for histological examination by H & E stain and spatial and temporal deposition of collagen typeI, III, IV, V and fibronectit laminin by immunohistochemical method. The findings are summarized as follows 1. There were lack of inflammation in the repaired and the unrepaired group during experimental periods. 2. The reepithelialization of the unrepaired group was slower than that of the repaired group. 3. Collagen I, III, V were found from post-op. third day. There were no difference of distribution in the control, the repaired and the unrepaired group. Collagen types I, III, V were present in all groups with restoration of the normal collagen pattern in the fetus. This implies that lack of scarring in fetal wounds is due to the difference of collagen organization pattern within wound and not simply lack of collagen formation. 4. Collagen IV was slightly increased at post-op. third day and decreased after post-op. fifth day. Eventually there were no differences in the control, the repaired and the unrepaired group. Lminin was found at post-op. fifth day and maintained staining density until post-op. seventh day. There were no differences in the control, the repaired and the unrepaired group. According to staining of laminin and collagen type IV in epithelial basement membrane, formation of epithelial basement membrane was not completed until reepithelialization was finished. 5. According to staining of laminin and collagen type IV, there were no increase of neovascularity in the repaired and the unrepaired group. 6. Fibronectin was increased until post-op. third day at fibrin clot, wound base and margin and decreased after post-op. fifth day. Eventually, there were no differences in the control, the repaired and the unrepaired group. So it implies fibronectin plays a role as provisional matrix for fetal wound healing.

• Journal of the Institute of Electronics and Information Engineers
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• v.52 no.5
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• pp.136-146
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• 2015

The active control of a vehicle based on vehicle recognition is one of key technologies for the intelligent vehicle, and the part-based image representation is necessary to recognize vehicles with only partial shapes of vehicles especially in urban scene where occlusions frequently occur. In this paper, we implemented a part-based image representation scheme using non-negative tensor factorization(NTF) and realized a robust vehicle recognition system using the NTF feature. The result shows that the proposed method gives more intuitive part-based representation and more robust recognition in urban scene.

• The Journal of the Acoustical Society of Korea
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• v.9 no.2
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• pp.61-69
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• 1990

We have investigated the digital bit synchronization problem in baseband communication receiver systems using the Gauss-Markov estimation technique which is equivalent to the weighted least square method. The realized bit synchronizer, including the data detector, processes the input signal two dimensionally into the transition phase and data level under the white Gaussian noise environment. We have confirmed the relization of the bit synchronizer via computer simulation. In addition, we have compared and evaluated the estimation error performance of the proposed method with that of the conventional DTTL method and of the minimum likelihood method.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.1905-1909
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• 2006

지하수 함양량을 정확하게 산정하는 것은 지하수계의 적절한 관리를 위해서 매우 중요하다. 국내에서 주로 사용되는 지하수 함양량 추정방법은 지하수위 변동법, 기저유출 분리법, 연단위 물수지 분석법 등이 있다. 그러나, 이들 방법은 집중형 개념을 기반으로 하기 때문에 기후조건, 토지이용, 토양조건, 수리지질학적 비균질성에 의한 함양량의 시공간적 변동성을 구현할 수 없다. 따라서 본 연구에서는 유역의 비균질성을 반영할 수 있는 SWAT 모형을 이용하여 시공간적 변동성을 고려한 지하수 함양량을 산정하는 방법을 제시하고자 한다. SWAT 모형은 유역내 일단위 지표면 유출량, 증발산량, 토양저류량, 함양량, 지하수유출량 등의 수문성분을 계산할 수 있는 모형이다. 본 연구에서는 SWAT 모형을 미호천 유역의 최상류인 무심천 유역에 적용하였다. 2001년 - 2004년까지의 기간동안 지하수 함양량을 포함한 유역의 일단위 수문성분들을 모의하였으며, 유역출구점에서의 실측 일유출자료와 모의 일유출자료의 비교를 통해서 모의결과의 유효성을 검토하였다. 지하수 함양량의 시공간적 변화를 분석한 결과, 지하수 함양량의 변동성은 토지이용 변화뿐만 아니라, 유역경사와 같은 지형인자에도 큰 영향을 받는 것으로 분석되었다.

• Archives of Reconstructive Microsurgery
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• v.16 no.1
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• pp.23-29
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• 2007

The reconstruction of deep soft tissue defect such as pressure sore has difficult problems. Myocutaneous flaps have been used commonly as the best coverage method for pressure sore. But, they have several drawbacks such as sacrifice of functional muscle, high morbidity of the donor sites and bulkiness at the recipient site. The concepts of perforator flap has recently developed and widely used to overcome these disadvantages. Between March 2005 to July 2006, we have treated 9 patients who had pressure sore using perforator based fasciocutaneous island rotation flap. Preoperative unidirectional Doppler was used in all cases. Mean number of perforator vessels was 3.8 and flap sizes were from $7{\times}5\;cm$ to $14{\times}13\;cm$. Rotation angles of flap were from 90 degree to 180 degree. In all cases, donor sites were closed primarily. All flap survived completely and postoperative complications were wound dehiscence in 1 case, wound infection in 3 cases. The mean postoperative follow up period was 15.7 months and recurrence was not reported. We could decrease donor site morbidity and cover wound sites easily by using flap rotation and get robust blood supply without sacrifice of functional muscle. Fasciocutaneous perforator island rotation flap would be very useful for various pressure sore treatment.

• Composites Research
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• v.14 no.5
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• pp.20-25
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• 2001

This paper deals with finite element analysis for free vibration and forced sinusoidal vibration of Ka- and Ku- band antenna structures using MSC/NASTRAN. The structures are designed to satisfy minimum resonance frequency requirement in order to decouple the dynamic interaction of the satellite antenna with the spacecraft bus structure. The large mass method was utilized to analyze output acceleration according to the forced sinusoidal vibration inputs in X-, Y- and Z- directions. The analysis results can also be used thor verification experimental planning of satellite antenna.

• Journal of Chest Surgery
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• v.29 no.4
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• pp.461-465
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• 1996

We experienced a case of benign clear cell tumor of the lung. It is a rare and very unusual pulmonary neoplasm. Only 40 cases have been reported in the foreign literatures, but this is the 2nd case report in Korea. A 43 year old man who revealed a coin lesion in the chest X-ray at the health screening, underwent resection of the right lower lobe Pathologically the tumor ce ls have a clear cytoplasm due to abundant glycogen in the histochemical and electron microscopical studies.

• Journal of the Korean Society for Advanced Composite Structures
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• v.3 no.2
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• pp.1-10
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• 2012

In the present study, an Element-Based Lagrangian Formulation for the nonlinear analysis of shell structures is presented. The strains, stresses and constitutive equations based on the natural co-ordinate have been used throughout the Element-Based Lagrangian Formulation of the present shell element which offers an advantage of easy implementation compared with the traditional Lagrangian Formulation. The Element-Based Lagrangian Formulation of a 9-node resultant-stress shell element is presented for the anisotropic composite material. The element is free of both membrane and shear locking behavior by using the assumed natural strain method such that the element performs very well in thin shell problems. The arc-length control method is used to trace complex equilibrium paths in thin shell applications. Numerical examples for laminated composite curved shells presented herein clearly show the validity of the present approach and the accuracy of the developed shell element.