내용기반 분류에 의한 비디오 검색 시스템 설계

배종식,남윤성,양동일,최형진 강원대학교 정보통신연구소 2006 정보통신논문지 Vol.10 No.-

We suggest how to search news data by dividing structurely, by classifying meaningly, and by itemizing them by contents. The structural division divides the scene using correlative information between frames such as the distribution of the space brightness and the irregularity of brightness, and time relation etc. The meaning classification means to classify the detailed contents of news video as articles comparing special information extracted frame key frame with previous knowledge information. This study classifies the articles as the anchor's scene and the non-anchor's scene using the character that the progress of news is repeated centering around the anchor frames by periods. We get the non-anchor's scene to search the news data itemizing speech scene, interview scene and general scene, and classifying as articles. Also, we use the function of searching for summary by news icons and search the caption by processing the integration of caption, and design them to be able to search the news video quickly classifying news video as contents and indexing them.

필러의 종류가 UTMA 계 광중합형 복합레진의 강도에 미치는 영향

배태성,최진용,최규형,채민수 大韓齒科器材學會 2000 대한치과재료학회지 Vol.27 No.3

This study was performed to evaluate the effect of resin and filler type on the strength of light-activated composites. Experimental composites were prepared using the four types of urethane tetramethacrylate monomers(HM-4M, TM-4M, XY-4M and DC-4M) and three different shapes of silica fillers. Cylindrical specimens of 3㎜ in diameter and 6㎜ in length and rectangular specimens of 2×2×24㎜ were prepared for the compressive test and 3-point bend test, respectively. All specimens were immersed in distilled water at 37℃ for 24 hours. Compressive and 3-point bend tests were carried out at a crosshead speed of 0.5 ㎜/min and fracture surfaces were observed with scanning electron microscope. The results obtained were summarized as follows : 1. When the size distribution of fillers was same, composites containing the spherical fillers showed the relatively higher loading rate of fillers and compressive strength than those containing the crushed fillers. 2. Compressive strength values of the composites based on UTMA monomers containing the aliphatic UTMA monomers (HM-4M and TM-4M) showed the relatively higher strength values than those of the composites based on UTMA monomers containing the aromatic or cyclohexane ring in their chemical structure(XY-4M and DC-4M). 3. The compressive and transverse strength values of UTMA-based composites were higher than those of Bis-GMA-based composites. 4. According to the microscopic observation of fracture surfaces, composite failure developed along the matrix resin and resin/filler interface region.

골격성 Ⅱ급 부정교합자의 악교정 수술 후 설골의 위치와 상기도 변화에 관한 연구

배진성,김경호,박형식,허종기,박광호 大韓顎顔面成形再建外科學會 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.6

OSAS(obstructive sleep apnea syndrome) is becoming more and more of importance nowadays. Therefore the study concerning OSAS is very important. Most of the studies which have been reported were comparison of upper airway size and change of skeletal class Ⅰ group and skeletal class Ⅲ group respectively. But, most of the showing OSAS have pharyngeal narrowing combined with more or less distinct maxillary and mandibular deficiency. Therefore the aim of this study is to see posterior airway space and hyoid bone position in patients affected by class Ⅱ malocclusion and treated with orthognathic surgery. we measured the lines between selected upper air way landmarks on lateral cephalometric x-ray films of skeletal class Ⅱ 30 persons who had not been operated yet, were within 2 weeks after operation, were 6 months after operation. And we compared them respectively and analyzed them with pairing t-test, pearson correlation coefficient and multiple regression analysis. The results were as follows. First of all, skeletal class Ⅱ group was increased in all the level of PAS, especially PAS(MK) and PAS related to hyoid bone(H-phW, H-PhW(Me-H)) was significantly decreased within 6 months after operation but that was larger than preoperation. And then the PAS was increased after mandibular advancement surgery. While there was no significant correlation between PAS and surgical methods, there was statistical significance between PAS and a number of surgical movement. At last, the hyoid bone was advanced within 2 weeks after operation but relapsed within the follow up period. In the end of the study, it was turned out that PAS was always wider without distinction of the region after the operation and that there was significant correlation between the moving volume of hard tissues and the changing quantity of PAS( ; how much PAS was changed according to the moving degree of hard tissues). After this, to be based on the study, I consider that OSAS demands further study and that it is necessary to do more practical applications to the patients.

병원내 생리기능 검사실의 적정 업무환경에 관한 연구

배형준,윤기은,김승곤,나동진,문희주,김태전,박정오 서울보건대학 1999 서울보건대학 부설 병원경영연구소 논문집 Vol.4 No.2

The purpose of this study was to suggest guideline for optimal work environment of physiological laboratory in hospital. Therefore this study was carried out to analyze the actual condition of laboratory system, major equipments and persons. The period of survey was from September to November 1997 and the objects were 123 laboratory. The major results of this study were as follows. 1. The optimal areas of general ECG room, exercise ECG room and echocardiology room were all 9-18㎡, that of Holter ECG room was 3-12㎡. The optimal areas of neurosystem laboratory were all 9-12㎡, those of respiratory system laboratory were all 9-18㎡. 2. The optimal number of persons laboratory of hospital 500 beds and less were 2∼3, those of 501∼700 beds were 3∼4.701∼1.000 beds were 4∼5 and over 1.001 beds were 7∼8 persons in circulatory system laboratory. The optimal number of persons laboratory of hospital 500 beds less than were 1∼2, those of 501∼700 beds were 3∼4, 701∼1.000 beds were 6∼7 and over 1.001 beds were over 8 persons in neurosystem laboratory. The optimal number of persons laboratory of hospital 500 beds and less 1. those 501∼1.000 beds were 1∼2 and over 1.001 beds were 2∼3 persons in repiratory system laboratory. 3. The optimal number of equipments of general ECG were 2∼3 in the 500∼1.000 beds hospital. there were 3∼4 units in the 1,001 beds. The optimal number of equipment EEG were both 1∼2 in the hospital 500 beds and less and 501∼700 beds. those were 4∼5 units in hospital over 701 beds. The optimal number of equipments of spirograph were both 1∼2 in the hospital 500 and less and 501∼1.000 beds. those were 2∼3 units in the over 1.001 beds. 4. In view of speciality and legal problem of physiofunctional test. we sugget that non-licensee were so quickly change place licensee in the interests of optimal work environment. 5. We suggest that to upgrade qualitative level of domestic equipment and to the more amplify utilization with respect to domestic equipment for the purpose of reducing loss of foreign money.

볏짚의 가성소다 處理水準이 재래산양의 볏짚섭취량 飮水量 및 腸內 通過速度에 미치는 影響

辛炯泰,裵熙東,孫鎭漢 成均館大學校 科學技術硏究所 1988 論文集 Vol.39 No.1

These experiments(I, II) were conducted to determine the nutritive value of NaOH-treated rice straw by voluntary intake, water consumption, rate of passage and retention time in goat's gastrointestinal tracts. The results which were obtained with these experiments (I, II) as follows; 1. Volutary intake of 0%, 3% and 6% NaOH-treated rice straw by goats was 1,012ml, 1,427ml and 1,612 ml, respectively. 2. Water consumption of 0%, 3% and 6% NaOH-treated rice straw by goats was 1,012ml, 1,421ml and 1,612ml, respectively. 3. The first excretion time of stained rice straw particles in goat's feces was 0% NaOH, 20 hours: 3% NaOH, 18 hours and 6% NaOH, 16 hours, respectively. 4. Total mean retention time (R value) of 0%, 3% and 6% NaOH-treated rice straw by goats was 72.0 hours, 61.2 hour, and 56.8 hours, respectively. 5. The optimal level of NaOH for increasing the nutritive value of rice straw was 3% in goat's rations.

HBx형질전환 생쥐에서 발생한 간세포암종에서 H-ras 및 c-myc의 발현에 관한 연구

문형배,소병준,김학철,윤기중,한원철,조향정,유대열,정영진 圓光大學校 醫科學硏究所 2002 圓光醫科學 Vol.17 No.2

<연구목적> HBx형질전환 생쥐에서 발생한 간세포암종의 발암과정에 종양유전자(H-rgs, c-myc)의 발현 정도를 조사하고자 하였다. <연구방법> 정상생쥐 12마리(4-18개월) 및 HBx 형질전환 생쥐 44마리(4-18개월)를 대상으로 포르말린에 고정하고 파라핀에 포매한 간 조직을 이용하여 면역조직화학적염색을 실시하였다. 실험군은 정상 부위, 이형성 부위 및 종양 부위로 구분하였으며, 종양 부위는 소결절성병변 부위와 간세 포암종 부위로 구분하였고, 이형성병변 부위는 이형성병변만 발견되는 부위, 소결절성병변과 동반된 이형성병변 부위 및 간세포암종과 동반된 이형성병변 부위로 구분하였다. <연구결과> H-rgs의 발현은 정상 간조직에 비하여 이형성병변 부위(P<0.05) 및 종양 부위(P<0.01)에서 증가하였으며, 소결절성병변 부위과 간세포암종 부위 사이에서는 간세포암종 부위에서 증가된 경향이었으나 통계학적으로 유의한 차이가 없었으며, 각 이형성병변 부위 사이에서도 유의한 차이는 없었다. c-myc의 발현은 정상 간조직 및 이형성병변 부위에 비해 종양 부위에서 증가하였으며(P<0.001), 소결절성병변 부위와 간세포암종 부위에서는 비슷하였고, 각 이형성병변부위 사이에서도 비슷하였다. <결론> HBx형질전환 생쥐에서 발생하는 간세포암종의 발생에 H-rgs는 이형성 변화를 일으키는 시기에 관여하며, c-myc은 이형성병변에서 암으로 이행하는 시기에 관여할 것으로 생각한다. Background: This experiment was designed for the expression of H-ras and c-myc in hepatocarcinogenesis of the HBx transgenic mice. Methods: Immunohistochemical stains in the paraffin embedded tissue of the liver were used for the detection of H-ras and c-myc in the 12 normal mice and 44 HBx transgenic mice of the 4-18 month old. Results: Expression of the H-ras was significantly increased in the dysplastic area (P<0.05) and tumor area (P<0.01) than in the normal liver. But there were no differences of H-ras expression between areas of microscopically identified hepatocellular carcinoma (MI-HCC) and grossly identified hepatocellular carcinoma (GI-HCC) and dysplastic areas among the only dysplastic areas, dysplastic areas with MI-HCC and GI-HCC. Expression of the c-myc was significantly increased in the tumor area (P<0.001) than in the normal liver and dysplastic area. But there were no differences of c-myc expression between areas of MI-HCC and GI-HCC, and dysplastic areas among only dysplastic areas, dysplastic areas with MI-HCC and GI-HCC. Conclusions: Our study suggests that H-ras is related to the dysplastic change and c-myc is related to the neoplastic change in the hepatocarcinogenesis of the HBx transgenic mice.

법랑아세포종에서 apoptosis 연관 인자 발현과 apoptitic index

목동진,박진배,윤혜경,김우형,이희철 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.4

Objective : Ameloblastoma is a common odontogenic benign tumor of the jaw bone. However, it might be able to infiltrate into the adjacent tissue, causing bony destruction and high recurrent rate. The aim of this study is to understand the biologic behavior of ameloblastoma through immunohistochemi cal stainings for apoptosis-related markers of bcl-2, box and caspase-3, examining the apoptosis index and simultanecusly. performing the same tests on MIB-1, which is a marker of cell-proliferationg capacity and p53, which is related with tumor malignancy, and also study the differences between the above marker's expressions and their relationships. Methods and Material : The 39 cases of ameloblastoma were used after the surgery conducted at the Pusan Back Hospital and the Pusan University Hospital during the period from January 1991 to June 2001. The clinical parameters were recorded by patent's age, sex, location of tumor, treatment modality, radiologic findings and recurrences. Based on hematoxylin & eosin findings, they were histologicaly subdivided into follicular and non-follicular. Immunohistochemical stainings for bcl-2, bax, caspase-3. p53 and MIB-1 and TdT-mediated dUTP-biotin nick end labelling method for apoptosis were performed and also statistical analyses were conducted between clinicopathologic parameters and expressions for bcl-2, bax, caspase-3, p53 and MIB-1 and apoptosis. Results : six(15.4%) recurrences were found out of 39 cases. For the patient's age of 40 and above, found a higher recurrence rate(p=0.0182) and multilocular on X-ray(p=0.0640), but there were no significant differences between recurrence rate, sex, location of tumor, treatment modality and histologic subtype. Apoptosis was found in 10(25.6%) of 39 cases and bcl-2 was(20.5%), bax was 21(53.8%), caspase-3 was 19(48.7%). the positive reaction for p53 was 13 cases(33.3%) and 5(12.8) cases for MIB-1. In the positive case of apoptosis and MIB=1, both of them have showed an increasing tendency of high recurrence, but there were no statistical significance. It showed no significant relationship between expression rates of bcl-2, bax, caspase-3 and p53 and recurrence rate. In follicular type, bcl-2 and p53 positive reaction revealed increasing tendency, however, no significant relationship between radiological finding, expressions of apoptosis, bax, caspase-3 and MIB-1 and histologic subtype has found. No significant relationship between apoptosis and apoptosis-related markers as bcl-2, bax, and caspase-3 expressions has found. There was a significant relationship between bcl-2 and p53 expressions(p<0.01), but no significant differences of apoptosis and expressions of bax and caspase-3 according to p53 and MIB-1 expressions have noted. Conclusion : Apoptosis-related bcl-2, bax, caspase-3 expressions and p53 and MIB-1 expressions are involved in the development of ameloblastoma and high recurrent rate is related to the age of more than 40 years, multichambered lesion and the positive reaction for apoptosis and MIB-1. These finding suggest that patient's age, radiologic findings, apoptosis and proliferation activity of ameloblastoma could be useful markers to predict recurrence.

구강 편평세포암종에서 E-cadherin 및 β-catenin 발현의 변화 : Correlation with Histologic Features and p53 Expression

서진건,권창석,박진배,윤혜경,김우형,이희철 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.4

Objective : Altered expression of cell adheion molecules is associated with biologic behavior of tumor. The aim of this study is to evaluate the expression pattern of E-cadherin, β-catenin and p53 protein according to histologic grade and invasion pattern of squamous cell carcinoma of the oral cavity and the relationship between E-cadherin, β-catenin and p53 protein expression. Methods and Material : The materials were fifty seven cses of squamous cell carcinoma, and clinicl parameers such as age, sex, tumor location, stage and recurrence were recorded. Histologic review was done based on histologic grade and invasion pattern(nodular vs infiltrative). Immunohistochemical stains for E-cadherin and β-ca tenin were interpreted based on staining pattern as los of membranous expression and cytoplasmic expression and p53 protein expression was defined as positive if more than 10% of nuclei were reactive. Statistical analysis between E-cadherin, β-catenin and p53 protein expressions and histologic grade and invasion pattern and the relationship between E-cdherin, β-catenin and p53 protein expressions were perfomed. Results : There wa positive correlation between higher histologic grade and infiltrative pattern. Loss of membranous expression and cytoplasmic expression of E-cadherin were noted in 33.3% and 57.9%, respectively, and loss of membranous expression of E-cadherin showed increaing tendency in poorly differentiated carcinomas, however, there was no significant difference of cytoplasmic expression rate of E-cadherin according to histoogic grade. Altered expression of E-cadherin was more frequent in poorly differentiated carcinomas. Loss of membranous expression and cytoplasmic expression of E-cadherin were more frequent in carinomas with infiltrative pattern than in carcinomas with nodular pattern, but their diferences were not significant, Loss of membranous expression and cytoplasmic expression of β-catenin were observed in 19.3% and 80.7%, respectively. Loss of membranous expression of β-catenin howed no positive correlation according to histologic grade and invasion pattern, but cytoplasmic expression rate of β-catenin was higher in poorly differentiated carcinomas and in carcinomas with infiltrative pettern. p53 protein expression rate was 45.6%, and showed invreasing tendency in poorly differentiated carcinomas, but no significant relationship with invasion pattern. There was an inverse relationship of loss of membranous expression and cytoplasmic expression of E-cadherin and β-catenin. Altered expression of E-cadherin was related to cytoplasmic expression of β-catenin, however, there were no significant relationship between altered expressions of E-cadherin and β-catenin and p53 protein expression. Conclusion : In squamous cell carcinomas of the oral cavity, altered expression of E-cadherin and β-catenin was more frequent in poorly differentiated carcinomas and in carcinomas with infiltrative pattern and there was positive correlation betwween altered expression of E-cadherin and β-catenin. These findings suggest that altered expressions of E-cadherin and β-catenin may have a role in the development of squamous cell carcinomas with aggressive biologic behavior. but altered explosions of E-cadherin and β-catenin. These findings suggest that altered expressions of E-cdherin and β-catenin my have a role in the development of squmaous cell carcinomas with aggressive biologic behavior. But altered expression of E-cadherin and β-catenin might not be related to p53 protein expression. Further study on genetic mutation related to altered expression of E-cadherin and β-catenin will be needed

지형학적 순간단위도 유도에 관한 연구

민병형,서진호,이상배 東亞大學校 海洋資源硏究所 1994 硏究論文集 Vol.7 No.2

The Instantaneous Unit Hydrograph Method are presented for representation of the effective rainfall-runoff hydrograph by using the Geomorphologic parameter of a basin. The channels in the network are numbered according to the Starahler scheme, and the mathematical formulation corresponding to the existing techniques adopted by Rodriguez-Iturbe and Valdes. The applicability of the Geomorphologic Instantaneous Unit Hydrograph(GIUH) to the real drainage basins is tested using the data observed in a few IHP basins by the Least square Method(LSM), the Synthetic Unit Hydrograph Method(SUHM) and Moment Method(MM). The results of simulation cases such as LSM, SUHM and MM for observed data were promising, and their efficiency error rates were 16%, 113% and 52%, respectively. LSM was approved to be used for prediction of the basins.

개심술(開心術)의 임상적 고찰 : 치험 200예 200 Cases

최형호,서홍주,임영혁,김정중,배대양,이석기,임진수 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.2

Background and Objectives: Two hundred cases of the open heart surgery due to congenital and acquired heart disease were done using the cardiopulmonary bypass in the Department of Thoracic and Cardiovascular surgery, Chosun University Hospital from November, 1980 to June, 2001. Material and Methods: The number of congenital heart disease was 132 cases. 68 cases were acquired heart disease. 'The age of the congenital heart disease was from 22 days to 45 years. In the acquired heart disease, the age was from 14 to 72 years. Result: Congenital heart disease consisted of 113 congenital acyanotic heart disease, 19 congenital cyanotic heart disease. Corrective operation was done for congenital heart disease with 4. 5 % operative mortality. Of 68 cases acquired heart disease, 44 patients were valvular heart disease, 3 cardiac tumors, 9 ischemic heart diseases, 12 aortic dissections and etc. The operative mortality was 13%. Conclusion: The postoperative complications were appeared in 68 cases and the complications were wound infection, occipital alopecia, low cardiac output syndrome, arrhythmia, septicemia etc. The mortality after open heart surgery was 15 cases and the causes of death were low cardiac output syndrome, septicemia, respiratory failure and left ventricle rupture.