임베디드 시스템 기반의 영상 모니터링 시스템 개발

김중호,황병곤 대구대학교 정보통신연구소 2006 情報通信硏究 Vol.4 No.1

구강 악안면 연조직 결손 재건을 위한 진피 지방 이식의 이용 : 증례보고

김수관,박노승,이병준,황경곤,여환호,김영균 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3

Soft tissue defects in oral & maxillofacial region caused by tumor resection, trauma, congenital deformities have been treated in autogenous soft tissue flap, allogenic material, free dermal graft, fascia graft. Of these methods, autogenous dermis graft had initially been applied in hernia treatment at the beginning of nineteenth century and have been applied in soft tissue augmentation coverage of vital structure, dead space removal and reconstruction of fascia. A fat graft is used in reconstruction of orbit at the enucleation, restoration of facial contours, etc. In this case, patient with chin soft tissue defect in traffic accident was treated in autogenous dermis-fat graft from patient's abdominal and gluteal region. Chin defect was recons ructed favorably. There was no severe atrophy of grafted area 12 months postoperatively. We will report the result that is favorable esthetically with literature review.

다중신경회로망과 HCNN를 결합한 한국어 숫자음 인식

김석현,황병곤,여지환 大邱大學校 科學技術硏究所 1996 科學技術硏究 Vol.3 No.1

In thia paper , we have approached to the recognition system from assuming that two systems, time-frequency and nonlinear-dynamic pattem have different recognition range respectively. We showed that the performance of the Model connected MLP and HCNN is better than that of HMM itself. We examined HMM and HCNN under the similar conditions. The results turn out that MLP and HMM itself only show us a little change. So, we can conclude that the sysytem connected MLP and HCNN is more suit-able for speaker independent speech recognition tasks.

프랙탈 모델링 기법을 이용한 지형 생성 데이타 구조

김병철,김응곤 順天大學校 1994 論文集 Vol.13 No.1

□By far the most efficient technique of fractal based algorithms for artificial terrain generation is recursive midpoint subdivision. Existing polyhedral data structures implementing the technique are inadequate for maintenance of consistency as polygons are subdivided. A new data structure is presented which provides for the efficient use and consistent storage of spatial data. The data structure is applicable to polygons of any order and allows neighboring polygons of different order to be stored and subdivided.

WIPI 플랫폼에서 모바일 인터넷 컨텐츠 프로그램 구현

김상기,황병곤 대구대학교 2005 대구대학교 학술논문집 Vol.1 No.1

본 논문은 각 이동통신사의 독자적인 플랫폼에 종속적인 컨텐츠 개발을 탈피하여 단말기와 컨텐츠 개발에 독립적이고 개방된 한국형 모바일 표준 플랫폼인 WIPI를 이용하여 모바일과 PC간의 전자 메일 및 채팅 프로그램을 구현하였다. 기존의 전자 메일 및 채팅 프로그램은 주로 PC와 PC 간에 이루어졌어나 본 논문에서는 이동성을 특징으로 하는 모바일을 통해 PC, 모바일과 모바일 간의 전자 메일 및 채팅이 가능하도록 구현하였으므로 향후 다양한 모바일 컨텐츠 개발에 기여되리라 본다. In this paper, I implemented an e-mail and chat program (client) for communication between mobile devices and PCs based on WIPI, a South Korea's open wireless platform form developing device and content independent software to break from the way of developing contents that is dependent on different wireless platforms to each mobile communications company. While traditional e-mail and chat programs are written for PC-to-PC communication, I develop them for mobile-to-PC and mobile-to-mobile communications, and I expect to see various mobile contents in the future.

Organoclay/TLCP nanocomposites의 제조 및 특성

김원,최재곤,조병욱 조선대학교 생산기술연구소 2003 生産技術硏究 Vol.25 No.2

The organoclay/TLCP(Thermotropic Liquid Crystal Polymer) nanocomposites were prepared by in-situ polymerization. To discuss the effect of the organoclay contents on the polymer properties, we prepared organoclay/TLCP nanocomposites of 2, 5, 10wt% in organoclay contents. The organoclay/TLCP nanocomposites were characterized by scanning electron microscopy(SEM), X-ray diffractometer(XRD), dynamic mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC), and thermogravimetric analyzer(TGA). The bending moduli of organoclay/TLCP nanocomposites were improved with increasing organoclay contents. The TLCPs and organoclay/TLCP nanocomposites showed the nematic phase above those melting ternperature(T_(m)). The TLCPs and organo clay/TLCP nanocomposite seem to act as plasticizers and nucleating agents in the matrix polymers.

EVA Nanocomposites 제조 및 특성연구

김영용,박일수,정효선,최재곤,김정규,조병욱 조선대학교 생산기술연구소 2003 生産技術硏究 Vol.25 No.1

Ethylene vinyl acetate random copolymer(EVA)/layered-silicate nanocomposites were prepared by melt or solution blending. The TGA thermograms of EVA/ layered-silicate nanocomposites showed an improved thermal stability as the layered-silicate contents increased. The decomposition temperature of nanocomposite was increased around 10℃ compared with pure EVA at 50% weight loss under N_2 atmosphere And in an air atmosphere, temperature difference in 50% wt loss between the nanocomposlte and the virgin EVA was around 100℃ The moduli in their thermomechanical module of nanocomposite are higher than pure EVA. Interlayered spacings of nanosilicates were slightly increased when prepared by melt blending. On the other hand, they were remarkably increased when prepared by solution blending. It may be explained that EVA moiety of the copolymer showed partial adsorption behavior on the surface layer of the silicate. It also revealed that the adsorption is more effective in the solution blending than in the melt blending.

위피(WIPI) 플랫폼에 의한 모바일 컨텐츠 (DQQ) 개발

김상기,황병곤 대구대학교 2005 대구대학교 학술논문집 Vol.1 No.1

본 논문에서는 무선 인터넷 플랫폼에 관해 고찰하고 한국형 무선 인터넷 플랫폼 표준인 WIPI를 이용하여 DQQ(Daegu University Quiz Quiz)라는 모바일 게임 컨텐츠를 제작하였다. 이 DQQ는 Java 언어 기반의 플랫폼에서 Jlet을 사용하여 제작 되었고, 학교 실제 지도와 실제 건물 사진을 제공하여 사실성을 높였다. 또한 네트워크 게임 기능을 구현하여 커뮤니케이션을 하면서 서로간 게임을 할 수 있다. 한편 이 DQQ는 신입생, 재학생 및 편입생을 대상으로 학교 소개 및 학사 시스템 사용법을 퀴즈라는 형태로 제작하여 누구라도 쉽게 접근할 수 있도록 하였고 다소 까다로운 학사 시스템 사용법을 쉽게 습득하도록 제작되었다. This paper presents the review of mobile internet platform and a mobile game contents named DQQ using WIPI. I present this DQQ system that used Jlet in the platform of Java language foundation. The school actual map and actual building pictures came to make the real scene provide. This DQQ used the form of quizes to show a school introduction and an university graduate system usage. So the students, freshmen and enrolled students can use this DQQ more easily.

체지방율의 차이가 트레드밀운동중 호흡순환계에 미치는 영향

강병길,곽경남,김일곤 牧園大學校 1997 論文集 - 牧園大學校 Vol.33 No.-

본 연구의 목적은 8주간 트레드밀 운동이 본태성 고혈압 흰쥐의 혈압에 미치는 영향을 규명하는데 있다. 실험동물로서는 8주령된 본태성 고혈압 흰쥐(180마리)를 실험1, 실험2 집단으로, 그리고 정상흰쥐(90마리)를 비교집단으로 구성하였다. 실험 1집단에는 쥐 트레드밀을 이용해서 주당 4일, 하루에 30분씩 8주간 운동을 실시하였다. 이때 적용된 운동강도는 15m/min였다. 혈압과 체중은 실험동물을 사육하면서 집단별로 주 1회 측정하였다. 실험 결과는 다음과 같다. 1. 혈압에 있어서, 실험 1집단은 시간이 경과함에 따라 실험전인 8주령때 혈압과 거의 같은 수준을 유지하고 있는 반면에, 실험 2집단은 계속 상승하여 전형적인 고혈압을 나타내었다. 2. 체중은 세집단 모두 시간이 경과함으로써 증가하는 경향을 보였으나, 유의한 차이는 나타나지 않았다. 이상의 실험결과를 종합해 볼 때, 트레드밀 운동은 본태성 고혈압 흰쥐의 혈압 상승 억제에 큰 비중을 차지한다는 사실이 규명되었다. In order to analyze the ability of cardiorespiratory. after the exercising burden test and the practice of endurance exercise in HRmax's 60 percentage to two groups all, and after making obserations in cardirespiratory exercise responses between two group we had following conclusion. 1. According to the increase of exercising burden, the cardiorespiratory alteration reaction of the fat girls increased more than the normal girl's. 2. The same exercising burdens were given to all, the normal girls group and the fat girls group. the observed momentum were different each other on the way to exercise for the difference of cardiorespiratory. 3. On the way to exercise of the normal girls group and the fat girls group. HR alteration presented the increase tendency of the HRmax's 40 percentage level in the fat girls group. So. we knew the stress. pressed in the fat girls' heart on the way to exercise. was stronger than the normal girls' heart. 4. Oxygen ingestion quantity and Carbon dioxide quantity on the way to exercise of the fat girl's HRmax 40 percentage presented the higher increase them the normal girl's HRmax 60 percentage and we could observe much energy consumption

악교정 수술후 발생한 감염 4증례

진병로,김종섭,박진호,이창곤,박희대,이희경 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.1

Postoperative infection following orthognatic surgery is rare. When postoperative infections occur, the initial treatment consists of incision and drainage of the affected area, culturing to identify bacterial stains and verify antibiotic sensitivity, and the institution of the appropriate antibiotic regimen. Some plates and screws may eventually require removal, the initial therapy should be attempted to retain the plates and screws until adequete healing has taken place. In orthoganthic surgery, intra-operative complications as a lesion of inferior alveolar nerve, fracture of osteomised segments, incomplete sectioning, malposittion of segments, haemirrhage may occur. The surgeon should be familiar with possible complications to be caused and how to manage them. Prevention of postoperative infection following the orthognathic surgery consists of minimal periosteal reflection, aseptic management of operation field, proper surgical technique, rigid fixation, prophylactic antibiotics.