지능형 자동차 주변 감시 시스템 설계 방안

장시웅(Si-woong Jang),박영식(Young-sik Park),성현용(Hyun-yong Sung),곽길봉(Gil-bong Kwak),김선남(Seon-nam Kim),김경진(Kyeoung-jin Kim) 한국정보기술학회 2009 Proceedings of KIIT Conference Vol.2009 No.-

본 연구는 차량 주변을 지능적으로 감시하는 자동차 주변 감시시스템에 관한 것으로, 자동차의 주행 및 주차 시 속도의 변화나 운전자의 요청에 의해 자동차 주변 지역에 관한 시야를 상황에 따라 달리하여 모니터링 함으로써 운전자가 안전한 주행 및 주차를 수행할 수 있게 하기 위한 것이다. 그러한 목적을 달성하기 위하여 본 연구에서는 차량의 주변부를 감시하기 위하여 차량의 외곽에 설치된 카메라의 각도가 지면으로부터 차량의 상부를 향하는 방향으로 변경될 수 있도록 제어하는 제어부, 카메라의 영상을 입력받아 차량주변의 영상을 생성하는 영상처리모듈, 영상처리모듈에서 생성된 영상을 출력하는 디스플레이를 포함하는 것을 특징으로 하는 지능형 자동차 주변 감시시스템을 제안한다. This study is on a vehicle surroundings monitoring system, which enables a driver to travel and park safely by monitoring vehicle surroundings, depending on the speed of vehicle and driver's control when traveling and parking. To achieve the aforementioned purpose, we propose an intelligent vehicle surroundings monitoring system, which consists of a control part, an image processing module and display module. Hence, the control module controls angle of camera to turn upward from the bottom to monitor vehicle surroundings. The image processing module merges the received images from cameras with the original vehicle image to display the vehicle’s surroundings in real time as if looking down from the sky.

하악과두 골절 치료에 있어 보존적 치료와 외과적 치료의 비교

박인순,이철우,여환호,이효빈,김영균,변웅래 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.1

The authors investigated the 17 patients with the condylar fractures of the mandible who were admitted in Dept. of Oral and Maxillofacial Surgery, Chosun University, Dental hospital from 1990 to 1993 and could be taken follow-up above 6 months. Helkimo's clinical dysfunction index and mandibular mobility index were applied to the evaluation of the patients and the obtained results were as follows. 1. Mean maximal mouth opening was 38.4mm in the conservative group, 41.3mm in the surgical group and that showed no statistically significant difference.(P>0.05) 2. Clinical dysfunction index was higher in the surgical group than in the conservative group but .that showed no statistically difference.(P>0.05) 3. The extent of maximal mouth opening was increased gradually throughout the follow-up period. 4. Both groups didn't show severe clinically dysfunction.

생활폐기물의 배출원별 발생량 및 질적 특성

박종웅,권기홍,박상철,유호원,이학영 경산대학교(대구한의과대학) 1998 環境硏究 Vol.3 No.1

This study aims to investigate generation and physicochemical characteristics of Municipal Solid Wastes(MSW) generated from different sources in Kyungju. The source are apartments(low, high-rise), single family houses(centra1, outer), traditional market, office(city hall), factory, school, Park. The unit waste discharge rate of residential MSW excluding recyclable solid wastes was 0.47 kg/(capita . day). The maximum coefficients of variation for month and season were 1.23, 1.17, respectively. The bulk density of solid wastes was largely different for each sampling site, and the bulk densities of apartment district, single family house district and public area were 232㎏/m, 247kg/m, 170kg/m, respectively. The load factory of vehicle was 457kg/m. The percentage of combustible material to solid wastes was 86.5%. The physical compositions of solid wastes were food of 36.2%, Paper of 32.3%, plastic of 11.9%, glass of 6.5%, metal of 4.6%, textile of 3.0%, rubber of 1.8% and wood of 1.3%. The proximate analysis results of solid wastes showed moisture of 45.7%, volatile solids of 45.2%, and ash of 9.1%. In case of moisture content, the maximum value showed 66.7% in high-rise apartment district and the minimum value 14.0% in school district. Carbon, hydrogen, oxygen, nitrogen, sulfur and chlorine contents of combustible solid wastes were 48.4%, 7.0%, 25.9%, 1.3%, 0.2% and 0.4%, respectively. The low heating values of combustible solid wastes were 1,365 ~ 2,896kca1/kg (average 1,892kca1/kg) in residential area and 1,200∼3,878kca1/kg (average 2,178kca1/kg) in public area. Especially, the generation rate and the moisture content of residential MSW separating food wastes decreased 2.7 and 1.7 times and the low heating increased 2.1 times in apartment district.

원주지역에서 발생한 비외상성 심정지의 일주변화

박금수,김영식,이진응,임종천,이강현,임경수,황성오,최경훈 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

To estimate the quality of the emergency medical services system of Wonju City, we studied the diurnal variations of 179 non-traumatic cardiac arrest victims who received cardiopulmonary reuscitation at the emergency center of Wonju Christian Hospital. Diurnal variations of non-traumatic cardiac arrest patients were as follows ; The occurence of cardiac arrest at day-time was higher than night-time; 18 cases (11%) from midnight to AM 4, 25 cases (14%) from AM 4 to AM 8, 42 cases (24%) from AM 8 to AM 12, 46 cases (25%) from AM 12 to PM 4, 35 cases (19%) from PM 4 to PM 8, 13 cases (7%) from PM 8 to midnight. Witness cardiac arrest was increased more during the day than night ; 40% from midnight to AM 4, 48% from AM 4 to AM 8, 57% from AM 8 to AM 12.52% from AM 12 to PM 4, 60% from PM 4 to PM 8, 38% from PM 8 to midnight. The transportation time at night-time cardiac arrest was more longer than day-time cardiac arrest ; 30±12mins from midnight to AM 4, 26±9mins from AM 4 to AM 8, 27±12mins AM 8 to Am 12, 25±11mins from AM 12 to PM 4, 25±9mins from PM 4 to PM 8, 35±15mins from PM 8 to midnight. The rate of restoration of spontaneous circulation(ROSC) in day-time cardiac arrest was higher than the night-time cardiac arrest ; 30% from midnight to AM 4, 36% from AM 4 to AM 8, 32% AM 8 to AM 12, 44% from AM 12 to PM 4, 41% from PM 4 to PM 8, 15% from PM 8 to midnight. The survival rate of cardiac arrest has been correlated with collapse time, early bystander CPR, early advanced care. To improve outcome for prehospital cardiac arrest, we concluded that early bystander CPR, and early advanced life support should be performed at the scene and during the transportation especially at night.

여드름양 발진에서의 말라쎄지아 포자 검출 빈도에 관한 연구

박장규,이웅재,김연수,서영준,김경호,이증훈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

Steroid acne and pityrosporum folliculitis have similar clinical manifestations. So it was not casy to do differential diagnosis of these two diseases. We have tried to find out the different points between these diseases in clinical characteristics, positive rate of the malassezia spores, and their response to antifungal agents. We studied 21 patients with acneiform eruptions which were distinct from acne vulgaris. Patients were divided into two groups by steroid treatment history. Among 21 patients, 6 were administered steroid just before eruption and 15 were free from steroid within 6 months. We have examined malassezia spores with 10% KOH/Parker blue black ink mount from papules, pustules and comedones according to the patients skin lesions. The malassezia spores detected in 5 paticnts(83.3%) in the former and 9 patients(60%) in the latter. In malassezia folliculitis, the frequency of which showed above the (3+) score of malassezia spore under microscopy was higher than in steroid acne. Mean duration of the disease was 70.4 weeks in latter group, which was longer than 5.2 weeks of the former group. And there were some differences between two groups in the distribution of the lesions. Mean treatment duration was same in two groups (4 wks, 3.5 wks). Steroid acne patients would be treated better with antifungal agents than with acne regimens.

혈중납이 흰쥐의 Microsomal Cytochrome P-450 Monooxygenase 활성도에 미치는 영향

박기현,장성근,윤영안,김기웅,박종안 순천향대학교 1993 논문집 Vol.16 No.3

In rats treated with lead nitrate and/or red ginseng extract mixture we observed a change in the level of hepatic cytochrome P-450 and electron transport system for P-450 dependent reaction, and content of Zincprotoporphyrin(ZPP) and Hemoglobin(Hb) in whole blood. The content of cytochrome P-450 and ?? , and the activity of ECHEase, AHHase and NADPH-cytochrome C(p-450) reductase were slowly decreased according to the dosage of lead nitrate. On the other hand, the activity of ?? reductase was increased according to the dosage of lead nitrate, but in case of treatment with red ginseng mixture, this enzyme activity was slightly decreased. In whole blood, the content of hemoglobin and ZPP were not shown any critival change but lead content increased according to dosage of lead nitrate. These results suggest that content and activity of cytochrome P-450-dependent monoxygenase may be dependent on specificity of substrates, and the acute exposure of lead nitrate and red ginseng extract mixture was not affected any biological significance.

인공 고관절 전치환술시 미세포말형 비구컵의 초기 안정성에 관한 생역학적 연구

박종웅,변영수 고려대학교 의과대학 1998 고려대 의대 잡지 Vol.35 No.2

The initial postoperative stability and intimate contact between the acetabular component with surrounding bone are essential for the bone ingrowth into porous-coated acetabular component. To achieve these goals in cementless acetabular component, press-fit of the acetabular component with or without adjuvant screw fixation is generally recommended. Many different models of acetabular components have been developed to achieve more bone ingrowth but they have been used without proven definite superiority over the others and different opinions exist in the advantage of adjuvant screw fixation. The purpose of this study is to investigate the gaps of bone-acetabular component interface, the initial mechanical stability and the effects of adjuvant screw fixation in the press-fitted two different shaped porous-coated acetabular components. Two different shaped cups: semi-hemispherical Harris-Galante Ⅱ cup and full hemispherical Trilogy cup, were press-fitted under 2mm under-reaming with or without adjuvant screw fixation in 40 bovine femur trabecular bone blocks. The implanted 40 specimens were divided into four groups with equal numbers of specimen. Harris-Galante Ⅱ cup was press-fitted in group 1. Harris-Galante Ⅱ cup was press-fitted with three adjuvant screws fixation in group 2, Trilogy cup was press-fitted in group 3 and Trilogy cup was press-fitted with three adjuvant screws fixation in group 4. In each radiography of all prepared specimen, the gaps of bone-implant interface were measured at polar portion, polar 1/3, middle 1/3 and peripheral 1/3. Implanted bone blocks were embedded in steel box and axial compression tests were per formed under 300kg load using servohydraulic tension-compression machine(Instron®-1331, Canton, Massachusetts, USA). The micromotions were determined in 5 specimens of each group using strain gauge transducer. Rotational stability tests were performed by determining the yield strengths in 5 specimens of each group. The results obtained were as follows; 1. Most of specimens had some visible gap at polar portion, polar 1/3 and middle 1/3 except peripheral 1/3, but there was significantly smaller gap at polar 1/3 region in the specimen implanted with Trilogy cup(p<0.05). The adjuvant screw fixation did not affect the amount of gap. 2. In the axial load test, the mean micromotion under 300kg axial load was 110.6±22.6㎛(range: 84.5㎛~136.0㎛) in group 1, 76.1±10㎛(range: 65.5㎛~91.5㎛) in group 2, 75.8±24.3㎛(range: 59.5㎛~118㎛) in group 3 and 95.5±26.4㎛(range: 74.0㎛~138.0㎛) in group 4 but there was no statistical difference in each group. 3. In the rotation test, the mean yield strength was 59.4F±22.3N.m(range: 37.2N.m~86.4N.m) in group 1, 62.6±15.7N.m(range: 42.3N.m~82.0N.m) in group 2, 41.8±14.0N.m(range: 23.7N.m~60.9N.m) in group 3 and 61.7±18.9N.m(range: 43.6N.m~90.2N.m) in group 4 but there was no statistical difference in each group. This study demonstrates that the initial mechanical stability is not influenced by the shape of semi-hemispherical Harris-Galante Ⅱ cup and full hemispherical Trilogy cup and also independent of adjuvant screw fixation. But smaller gap of Trilogy cup at the polar 1/3 region indicates the possibility that less amout of wear debris of polyethylene or metal will be deposited and therefore less osteolysis or cup loosening will occur, but this hypothesis should be confirmed by the long-term clinical follow-up.

슬관절 골관절염 환자에서 근육내 자극요법의 치료 효과

박영규,우종웅,안승렬,김정아,윤도경,박승회,조경환,홍명호 대한노인병학회 2001 대한노인병학회지 Vol.5 No.4

물곰팡이 Allomyces macrogynus의 홀씨와 팡이실에 존재하는 칼슘이온결합 단백질의 검색

박현숙,이수웅,오근희,박영식 인제대학교 1994 仁濟論叢 Vol.10 No.1

45Ca overlay를 이용한 방법으로 Allomyces macrogynus의 생장과정에서 형성되는 암수배우자 홀씨, 반수체 홀씨, 그리고 이배체 홀씨등의 세가지 홀씨와 팡이실에 존재하는 칼슘이온결합단백질들을 검색하였다. 세가지의 홀씨 각각에서는 모두 5가지 종류의 칼슘이온결합단백질들이 동일하게 관찰되었다. 팡이실에서는 적어도 6개 이상의 칼슘이온결합단백질들이 관찰되었으며, 이중에 3가지는 홀씨에서 관찰된 것과 동일한 것으로 판단된다. Ca2+-dependent phenyl-sepharose를 이용하여 팡이실에서 SDS-PAGE 겔 상에서 19kDa의 분자량을 가지는 칼슘이온결합단백질을 분리하였다. 이 단백질은 등전점이나 열에 대한 안정성, 칼슘이온에 의한 전기영동상에서의 움직임의 변화 등으로 판단하건 데 calmodulin으로 추정된다. 따라서 Allomyces macrogynus의 홀씨와 팡이실에는 calmodulin을 비롯하여 다수의 칼슘이온결합단백질들이 존재하며, 이들 중에는 홀씨, 또는 팡이실에서만 관찰되는 것들도 있었다. Calcium binding proteins(CaBPs) present in 3 different types of zoospores and in mycelium of Allomyces macrogynus were screened by using 45Ca overlay method. Five different kinds of CaBPs were equally observed in gametes, haploid spores, and diploid spores, respectively. Six kinds of CaBPs were observed in fractions of DEAE-cellulose chromatography of mycelial extract. Among them 3 CaBPs were shown to be identical with those detected in zoospore extract. 19-kDa CaBP was isolated from mycelial extract by Ca2+-dependent phenyl-sepharose chromatography. The 19-kDa mCaBP showed calmodulin-like properties as determined by molecular weight, isoelectric point, and Ca2+-dependent mobility shift on SDS-PAGE. It is shown that a variety of CaBPs including calmodulin-like protein are present in zoospores and mycelium of Allomyces macrogynus and some are confined to either.

필기체 숫자인식의 최적 신경망 구조 설계를 위한 개선된 유전자 알고리즘

박찬란,김향태,정재영,위승정,최봉한,최호진,이웅기 조선대학교 통계연구소 1999 統計硏究所論文誌 Vol.1 No.1

본 논문에서는 필기체 숫자인식의 최적 신경망 구조 설계를 위하여 유전자 알고리즘과 역전파 알고리즘을 병합하는 방법을 이용하였으며, 유전자 알고리즘은 유전인자의 역할에 따라 독립적으로 적응하는 개선된 선택, 교배, 돌연변이 연산자를 제안하였다. 실험결과는 유전인자의 역할에 적응하는 개선된 연산자들의 실행으로 최적의 신경망 구조를 설계하였고, 설계된 신경망 구조에서의 학습이 가장 좋은 성능을 나타내었다. In this study, the method of using both genetic algorithm and back propagation is proposed to design the structure of optimal neural network recognizing handwritten digits. Improved selection, crossover and mutation operator which can control the genetic algorithm independently according to the role of gene are used in the proposed method. Simulation result shows that the neural network of this method can search effectively the optimal hidden node numbers, connection weight, learning rate and the momentum because of above proposed operators.