흰쥐중심편도체핵에서 Neurotensin 면역양성세포의 다리옆핵으로의 투사

박인식,최정화,박봉수,백선용,김봉선,김재봉,김진정 대한해부학회 1996 Anatomy & Cell Biology Vol.29 No.2

익수환아의 예후에 영향을 미치는 인자에 관한 연구

김용배,정대봉,조수형,조남수,박영봉,박상기,김춘호,양은석,문경래 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

Drowning is the second most common cause of accidental death of children in Korea. But the study of near-drowning is very rare in Korea. The purpose of our study is to determine the factors that may influence survival on the basis of submersion time, consciousness state upon admission to hospital, the kinds of water, laboratory findings and neurological outcomes. The survey was performed by a retrospective cohort study on 28 near-drowning victims of less than 15 years of age who were admitted to the emergency room in the Chosun University Hospital between May 1988 & May 1997. The results were as follows :1)Sex distribution was 22 males and 6 females. 2) Submersion time was <5 minutes in 9 cases, 5-9 minutes in 6 cases, 10-14 minutes in 5cases, 15-19 minutes in 3 cases, ≥20 minutes in 5cases. 3) Comatose patients upon arrival were 6/7 cases in the death group(86%) and 2/21 cases in the improved group(10%). They had unfavorable outcomes(P<0.05). 4) The first PH value was mean 7.02±0.12 in the death group and mean 7.31±0.13 in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05) 5) The patients who gad increased blood glucose concentration were all 7 cases in the death group and 12/22 cases in the improved group(54%). The mean blood glucose concentration was mean 424.7235.6㎎/㎗ in the death group and mean 140.182.7㎎/㎗ in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05). 6) The patients who had pulmonary edema upon arrival were all 7 cases in the death group and 1/21 cases in the improved group(46%). They had unfavorable outcomes(P<0.05). 7) The patients who had been submerged more than 15 minutes were all 7 cases in the death group and 6/21 cases in the improved group(5%). They had unfavorable outcomes(P<0.05). We conclude that pediatric victims of near-drowning can be assigned to high or low likelihoods of unfavorable our outcomes with the use of five variables ; comatose mentation upon arrival decreased initial blood pH, increased initial blood glucose concentration, pulmonary edema, and maximum submersion time estimated longer than fiften minutes. This prediction rule may be useful if it can be validated in another cohort.

충주 지역에서 10년간 급성심근경색의 임상관찰에 대한 연구

박봉안,류하근,이종혁,김인숙,류주성,유재등,이용구,문언수,김형수 건국대학교 의과학연구소 2001 건국의과학학술지 Vol.11 No.-

Background: The current treatments of acute myocardial infarct(AMI) Include noninvasive method using thrombolytics and invasive methods such as primary percutaneous transluminal coronary angioplasty(PTCA) and coronary artery bypass graft(CABG)surgery. Although there are many studies comparing the effectiveness of noninvasive and invasive methods, when large clinical centers, 20% of totar hospitals, were excluded, most middle-sized hospitals lacked personnels and facilities for the invasive methods. Thus they opted for the noninvasive methods. Therefore, in this study, the clinical characteristics of AMI patients and the results of thrombolytic & conservative treatment were observed. Method: 137 patients with acute myocardial infarct, who visited KonKuk University Medical Center, ChoongJu Hospital during Sept. 1990 to Sept. 1999 were analysed retrospectively using medical records. Result: The sexual compositions of patients were 63.5% male, and 36.5% female. The mean age for male patients were 56±12.9, and for female patients 68.7±9.6 (p<0.05). The mean age for female patients was significantly older than male patients. The patients in the thrombolytic treatment group had mortality rate of 6.25% which is lower than that of the conservative treatment group at 12% (p>0.05). Conclusion: Although in our study, small number of acute myocardial infarct patients caused the statistical insignificance, rapid revascularization by thrombolytic therapy within 6 hours of onset of symptoms improved mortality rate and early ambulation. And we had good results on AMI with thrombolytic agent in ChungJu including near rural area as primary emergency hospital. Therefore a prospective research with greater number of subjects is needed to develop better treatments for AMI.

Xanthomonas sp. EPS-1의 Exopolysaccharide생산을 위한 무기염류의 영향

박석규,손봉수,이상원,서권일,김홍출 순천대학교 기초과학연구소 1995 基礎科學硏究誌 Vol.6 No.-

For the production of high viscosity exopolysaccharide from Xanthomonas sp. EPS-1 which isolated and identified from soils, optimum concentration of inorganic salts were investigated : 0.2% KH_2PO_4, 0.05% MgSO_4·7H_2O, 0.3% NaCl, 0.005% CaCO_3, 0.007% FeSO_4·7H_2O, 0.005% MnSO_4·7H_2O. When EPS-1 strain was cultivated at 30℃ for 72 hours in a jar fermentor (impeller speed 300 rpm, aeration rate 3 vvm, 2 liter), polymer content, product rate and yield(Y_p/s) was 18.4g/ℓ, 0.26g/ℓ/h and 37%, respectively.

백일주 양조중 맛성분의 변화

박석규,박필숙,손봉수,문주석 순천대학교 기초과학연구소 1993 基礎科學硏究誌 Vol.4 No.-

Changes in taste components of Backilju, an old Korean cleraed rice wine, were investigated. During brewing, pH and titratable acidity of mash were decreased or increased in the range of 3.41→3.81 and 8.62→6.74, respectively. The final product of Backilju filtrate, fermented for 100 days, contained 0.36% reducing sugar, 2.68% total sugar, 606.6 ㎎% total acid, 2.5 ㎎% volatile acid and 22.9㎎ solid/ml extract. Major volatile components analized by GC/MS methods were 3-methyl-1-butanol acetate, 4-decanol and dimethyl disulfide. Calcium(20.26ppm) was the most abundant, followed by magnesium(3.19ppm) and zinc(1.87ppm). Nucleotides and their related compounds were inosine(0.12→0.44 mM/ml), ADP(0.16→0.33 mM/ml) and hypoxanthine(0.33→0.04 mM/ml). Compared with other Korean traditional Yakju, Backilju contained more total acid and mineral but less sugar and volatile acid.

벨마비 환자의 예후와 신경생리 검사소견의 관련성

백봉수,박성파,서정규 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

대학성적에 영향을 미치는 변인 분석

박수봉 ; 이상덕 김천대학교 2016 김천대학교 논문집 Vol.27 No.-

I.서론 Ⅱ. 연구대상 및 방법 III.결과 및 고찰 IV.결론

실온에서 Al-SiO_2-Si(100)_p형 계의 경계면 반응

박동수,손기수,이원식,박봉두 慶北大學校 物理化學硏究所 1985 硏究論文集 Vol.6 No.-

실온에서 알루미늄 산화층(SiO_2)-반도체〔Si(100)_p형〕 소자의 경계면 반응을 Ar^+이온 sputter총을 부착한 AES로 수행했다. SiO_2-Si 경계면은 Si-Si 결합, Si-O 결합의 두 가지 상태를 갖고 있으며, 경계면 넓이는 약 30Å였다. Al-SiO_2-Si 반도체 소자의 경계면 반응은 SiO_2 속의 자유 실리콘이 알루미늄 표면으로 확산되고, 알루미늄과 SiO_2 경계면에 대량의 자유 실리콘이 존재한다. Al-interfacial layer(SiO_2)-semiconductor Si(100)_p-type structures were investigated by the Auger Electron Spectroscopy. The results of depth profiling Ar^+ -ion sputtering are presented for the SiO_2-Si(100)_p-type cell. In the interface, Silicon exists in only two distinct bonding states: Si-Si or Si-O bonding. The exact width of the interface is known as indefinite, but here we estimate it approximately 30Å. The results of depth profiling Ar^+ -ion sputtering are also presented for the Al-SiO_2-Si(100)_p-type cell. Metal(Si) atoms from deposited interfacial oxide layer were observed on the Al surface. The interfacial reaction takes place between Al and the interfacial layer at the room temperature. The diffusion of metal(Si) atoms from the interfacial layer towards the Al surface is suspected to play a role in degradation effect in the MIS solar cells.

개의 하악에서 막성골 중첩이식후 신연골 형성에 관한 연구

박세정,이동훈,이정형,조병채,백봉수 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3

The purpose of this study was to investigate the possibility of distraction osteogenesis in membranous onlay bone graft on the mandible and to clarify the histology of bone repair during distraction osteogenesis in the membranous onlay bone in a dog model. Four dogs, 5 months of age at the beginning of the experiment, were used for this study. The zygomatic arch was exposed in the subperiosteal plane and the full-thickness zygomatic arch was harvested to 3 centimeters in length. The lateral surface of the mandibular body was exposed in the subperiosteal plane and the membranous onlay bone graft was performed with firm contact using screws. The osteotomy on the membranous onlay bone graft and underlying mandibular body was carried down week 1 in dog 1, week 2 in dog 2, week 3 in dog 3, and week 4 in dog 4 after membranous onlay bone graft. The external distraction device was applied to the mandibular body. Mandibular distraction was started 7 days after the operation at a rate of 1mm per day for a total of 10 mm distraction over 10 days. After completion of distraction, the distraction device was left in place for 6 weeks bony consolidation of the distracted area. Radiographs were carried out at 2 weeks, 4 weeks and 6 weeks after distraction. New bone between the native underlying mandibular segments was generated in the distracted zone in all dogs. The new bone between the native underlying mandibular segments was generated in the distracted zone in all dogs. The new bone between segments of membranous onlay bone graft was not generated in dog 1, but it was generated in dogs 2, 3 and 4. However, in dog 2 and 3, the new bone between segments of the distracted membranous onlay bone graft presented less firmness with fibrous tissue than that of the native underlying mandibular segment. Histologically, the distracted gap between segments of the membranous onlay bone graft was composed of much fibrous tissue in the central zone while activated osteoblastic cells formed new bone in the margins of the distracted gap in dogs 2 and 3. In dog 4, there were abundant osteoblastic activities in the distracted gap and the new bone appeared as nearly-normal cortical bone. In conclusion, these findings suggested that membranous onlay bone graft had an osteogenic capacity and that distraction osteogenesis was possible in membranous onlay bone graft.

에지특징에 근거한 이미지영역 분리와 DCT를 이용한 얼굴 인식

박수봉,이인범 東新大學校 1998 論文集 Vol.10 No.-

In this paper, we propose a face recognition algorithm which extract characteristics of image using edge and DCT(Discrete Cosine Transform). In this algorithm, training vectors of neural networks is the extracted data. With the same luminesce and distance, the fixed CCD camera, human face was captured. Edge characteristics of face images is concentrated in eye bows and mouth. Therefore, using edge characteristics of face images, it was segmented with square region. we determined this area to the characteristics region of face images, and contains eye bows, eyes, nose and mouth. Also, after executing DCT for this square region, we extracted feature vector. This feature vector was normalized and set the input vector of neural networks. Simulation results show 100% recognition for 30 face images when face images were learned and 94% recognition rate when face images weren't learned. Also, in case of DCT processing, the proposed algorithm reduced 55% operation time than to process all face images.