工業敎育大學의 實驗實習施設 共同活用 및 運營에 關한 硏究

尹錫天,牟相榮,權五憲,千炳善,周赫鍾,李永臣,金健中,羅聲雄,洪錫雨,吳德成,盧泰天 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(A)

The College of Engineering was specialized to have a sole function for supplying technical high school teachers in 1977 and referred to as the College of Industrial Education according to the Government's policy. The economic impact mainly due to the oil-crises caused a severe problem to this college, namely discrepancy of supply to demand scale. Accordingly the number of student enrollment was to be fluctuated from 479 in 1979 through 800 in 1979 and 900 in 1980 to 430 in 1981. And the engineering departments have been attached to this Engineering Education College since 1981. These circumstanses met singnificant inefficiency in facility operation. This program aims at providing an overall relocation of the college facilities and preparing the practical system to make the joint-operation possible taking into account circulation, academic stream, budget, maintenance, etc. However this study could not get optimal spacing but some trade-off, considering the current situation.

엔지오텐신이 Norepinephrine의 신혈관 반응에 미치는 영향

이석호,김종규,양훈모,민영기,임한혁 순천향의학연구소 1999 Journal of Soonchunhyang Medical Science Vol.5 No.2

To determine the effect of angiotensin Ⅱ(ANG Ⅱ)-induced hypertension on the renal hemodynamic response of norepinephrine(NE), mongrel dog instrumented for checking of renal blood flow(RBF) was followed as the step increases every 2 minutes in the rate of norepinephrine infusion into the renal artery during 5 conditions (C : control, C+PD : control+pressure decompression of aorta, ACEI : angiotensin converting enzyme inhibitor, ACEI+ANG Ⅱ : angiotensin converting enzyme inhibitor+ANG Ⅱ, ACEI+ANG Ⅱ+PD : angiotensin converting enzyme inhibitor+ANG Ⅱ+pressure decompression of aorta) Without relation of increase (C, C+PD) or decrease (ACEI+ANG Ⅱ, ACEI+ANG Ⅱ+PD) of the plasma ANG Ⅱ level when NE is infused into vessel, there were no differences in RBF response to NE infusion between C and C+PD and between ACEI+ANG Ⅱ and ACEI+ANG Ⅱ+PD, which implies that renal arterial pressure(RAP) does not play an important role in controling the renal hemodynamic response to NE. When renin angiotensin system was blocked by captopril without adding to ANG Ⅱ supply (ACEI), RBF can be severe decreased to approximately 90% at much lower rates of NE infusion than occurred when the sufficient concentration of ANG Ⅱ were present in the plasma. As the increased sensitivity of NE did not occur at lower renal arterial pressure, when ANGⅡ was present in the plasma in sufficient concentrations, it seems that protective effect on renal function is possible by ANGⅡ during renal sympathetic stimulation.

일측 하퇴 의족 착용자의 절단단 길이에 따른 보행특성

조병모,변주남,김기순,김석산,박종 조선대학교 부설 의학연구소 1999 The Medical Journal of Chosun University Vol.24 No.1

This report studied 31 male patients who were in one hospital in Kwangju or came to a prosthesis clinic and are 15 normal control group to analyze the gait characteristics according to the stump length in the prosthesis users with the unilateral below-knee amputations. The patient group was divided into a short stump subgroup of 13 patients and a long stump subgroup of 18 patients according to the stump length, the control group was randomly sampled from 15 males who have similar age, height and weight to the experimental group. The results of analysis are summarized as follows. 1. There were no significant statistical differences of the general characteristics between patient and control groups and there was no difference of characteristics by patient groups except the mean gait distance a day. 2. Of 33 patients with amputation, 18 patients (57.8%) had phantom pain and 25 cases (80.6%) had neuroma. 3. Gait velocity, stride length of the affected side, step length of the sound side and base support among gait characteristics show a significant difference according to the stump length in the state excluding the effects of other factors (p<05) and the group with long stump showed closer gait characteristics to normal persons than those with short stumps. In conclusion, among the patients of unilateral below-knee amputations, the stump length affects the gait characteristics such as gait velocity, stride length, step and base of support and it is found that as the stump length gets longer, it shows the similar characteristics to gait characteristics of normal persons and long unilateral below-knee amputation can secure better gait characteristics.

주암댐 주변지역의 인문, 자연환경과 보전

김준선,장석모,김종홍 順天大學校 1992 論文集 Vol.11 No.1

주암댐이 건설됨에 따라 유역인구는 감소하였고, 전답은 침수되어 농업이 쇠퇴하여 댐 건설 전과 댐 건설 후의 인문환경은 차이가 있었다. 댐 주변지역의 기상은 안개일수의 증가와 일조시수의 감소가 뚜렷하여 내수면 증가에 따른 기상변화가 확인되었다. 현존 식생은 소나무림과 낙엽활엽수림으로 구성되었고 이는 7개의 자연군락과 10개의 대상군락으로 구분되었으며 식재림이 도처에 산재하였다. 댐 주변지역의 식물은 41목 122과 433속 629종 2아종 109변종 12품종으로 총 752종이 관찰되었다. 한편 녹지자연도 5, 7, 8이 대부분의 지역을 차지하였으며 수역이 증가하였고 어류상과 동물상의 변화는 생태계의 먹이사슬에 영향을 미치는 것으로 판단되었다. The population and the number of household around Juam-Dam watershed dscreased after the construction of the Dam. Lots of dry fields and paddy fields were submerged, which resulted in the decline of agriculture. Cultural environment, thus, seemed to have been changed in the area around Juam-Dam. Climatic changes were also observed between before and after the construction of the Dam. Especially foggy days were more frequently observed and photoperiod decreased in 1990 than previous years. Actual vegetation consisted of pine forests and broad-leaved forests. Nine kinds of natural forest community and 10 dinds of substitutional vegetation were classified in the surveyed area. Artificial forests were scattered in places. As for flora, a total of 752 species, that is 41 orders, 122 families, 433 genera, 629 species, 2 subspecies, 109 varieties and 12 forma, were observed. Degree of green naturality (DGN) of 5, 7, 8 was rated in the greater part of surveyed area with the increase of waters. As fishes and fauna changed, food web might be affected by deterioration of ecosystem.

요관압 상승시 신혈류량 조절에 prostaglandin이 미치는 효과

민영기,양훈모,김종규,이석호 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Higher ureteral pressure than in normal condition causes increase in renal blood flow (RBF) and partial impairment of the autoregulation of RBF. Higher ureteral pressure increased renal prostaglandin production, it is not clear whether or not it is also responsible for partial impairment of the autoregulation of RBF. Therefore, we investigated the role which prostaglandin play in the autoregulation of RBF, studying the interaction between ureteral pressure and RBF autoregulation may reveal the role of prostaglandin in tubuloglomerular feedback. For the purpose of this experiment, six anesthetized mongrel dogs were prepared for the measurements of RBF, mean systemic and renal arterial pressure (RAP) and the manipulation of ureteral pressure to 0 cmH20, 20 cmH20 and 40 cmH20. The autoregulation curves were determined during both control and elevation of the ureteral pressure, before and after the pretreatment with indomethacin, a cyclooxygenase inhibitor. The desired ureteral pressure was achieved by vertically elevating the water-filled reservoir connected to the ureteral catheter to 20 cm and 40 cm above the kidney level. In response to the elevation of the ureteral pressure, RBF increased from 167±11 ml/min to 185±8 ml/min, 204±11 ml/min respectively and the renal arterial pressure and the systemic arterial pressure didn't change significantly. During 0 mmHg of ureteral presure threshold pressure of RBF autoregulation was 59±3 mmHg. On the other hand, during 20 cmH20, 40 cmH20 of ureteral pressure, the autoregulation curves shifted upward and rightward from control, threshold pressure is elevated by 74±3 mmHg. The pretreatment of the dogs with indomethacin failed to affect the lower limit of RBF autoregulation during both control (63±5 mmHg) and the elevated ureteral pressure (77±5 mmHg). Since RBF failed to increase in response to the elevated ureteral pressure, RBF autoregulation curves obtained during the elevated ureteral pressure shifted only rightward from indomethacin control. The results indicate that the increased intrarenal level of prostaglandin by increased ureteral pressure or prostaglandin-induced vasodilation does not appear to bear any relation to the reduction in the autoregulatore capacity during elevated ureteral pressure. It seems that the partial impairment of the autoregulation during acute ureteral obstruction is due to the consumption of tubuloglomerular feedback mechanism at 0 mmHg of ureteral pressure and that prostaglandin is neither mediator nor effector of tubuloglomerular feedback mechanism.

고온 플라즈마를 이용한 폐기물 용융 소각기술 개발

엄태인,채종성,성지선,전영남,황순모,김영석 한밭대학교 생산기반기술연구소 2004 생산기반기술연구소 논문집 Vol.5 No.1

A high proportion of hazardous (PVC, asbestos, chlorinated solvents) and infection wastes are treated in incinerators, the high temperature and high energy characteristics of plasma may be employed to convert waste materials into inert small volume products and combustible gases, plasma torch melting(PTM) is one of the most widely used tool for the vitrification of wastes. The ash product generated is of low bulk density and may also contain leachable quantities of toxic heavy metal and organic species. Plasma processing is able to treat these ashes, destroying any contained polyaromatic hydrocarbons components. Also we presented a steady three-dimensional model for a plasma melting furnace optimum designed in this study with RNG k-ε model, and its use in characterizing the structure of the flow field, temperature field and reaction field. Among various types of plasma torches, non-transferred hollow cathode type torch is best suited due to its long lifetime, easy power controllability and steady power output. Development of a plasma torch showed the lifetime longer than 300 hours and efficiency better than 65% And the various factors(electrode diameter, cooling flow rate and temperature and gas flow rate affecting the thermal efficiency of the torch) were experimentally evaluated.

enalapril의 혈압하강효과에 대한 renomedullary depressor system의 역할

민영기,양훈모,김종규,이석호 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

It has long been recognised that renin-angiotensin system(RAS) takes part in blood pressure control. It was previously known that the physiological effects of the renomedullary depressor mechanism are in virtually all aspects the very opposite of those of RAS. Muirhead proposed that there was a negative-feedback interaction between two systems, RAS and renomedullary antihypertensive depressor system, and they balance each other. If true, as the suppression of angiotensin Ⅱ(ANG Ⅱ)by angiotensin converting enzyme(ACE) inhibitor activates the renomedullary antihypertensive function, we can assume the blood pressure lowering effects of ACE inhibitor due to an increased secretion of medullary depressor substance. After rats with intact and chemically destroyed renal medulla received either saline or the ACE inhibitor, mean arterial pressure(MAP) was clearly decreased after ACE inhibitor administration in controls with intact medulla, but MAP in rats with chemically destroyed renal medullar was not changed. According to these results, we can come to a conclusion that renomedullary depressor substance plays an important role to normal blood pressure control.

L - NAME 주입시 신 교감신경이 신혈류량 변화에 미치는 영향

민영기,양훈모,이석호,김종규 순천향의학연구소 2000 Journal of Soonchunhyang Medical Science Vol.6 No.2

Recently it is known renal medullar will be play a important role of blood pressure control and pressure natriuresis. Renomedullary antihypertensive mechanism is activated by increasing perfusion pressure of kidney and can be inhibited by sympathetic nerve stimulation or blockade of nitric oxide(NO) formation. It is important to know what is affect on renal regional blood flow, especially renal medullary blood flow(MBF). For the purpose of investigating the effect of the renal sympathetic nerve on regional blood flow during infusion of blocking NO synthesis(by N^(ω)-nitro-L-arginine methylester:L-NAME) in spontaneous hypertensive rat(SHR) and Wistar rats normal control, Mean arterial pressure(MAP), total renal blood flow(TRBF), midcortical blood flow(CBF), inner medullary blood flow were measured in innervated or denervated renal sympathetic nerve group of SHR and Wister rats. All group that received the L-NAME were seen increasing MAP while TRBF, CBF and MBF decreased and the decrease of TRBF in SHR is more marked than in Wistar rat. In spite of increasing the MAP, MBF in all four group decreased, respectively C: 220 ± 3 U, 205 ± 2 U Wi : 215 ± 4 U, 165 ± 12 U Wd :218 ± 3 U, 170 ± 10 U Si :195 ± 4 U, 98 ± 15 U Sd : 200 ± 3 U, 120 ± 14 U, especially the most remarkable decrease about 50 % in SHR innervated group. Thus, according to these result, NO seems to maintain the MBF and the partial interaction between renal sympathetic nerve and NO in medullary blood flow can be suggested in innervated SHR.

디지털 안저사진을 이용한 안구 회선의 측정

서종모(Jong-Mo Seo),김광기(Kwang Gi Kim),김종효(Jong-Hyo Kim),박광석(Kwang-Suk Park),정흠(Hum Chung) 대한검안학회 2007 Annals of optometry and contact lens Vol.6 No.1

목적: 디지털 안저사진을 이용하여 안구 회선을 객관적으로 측정하는 방법을 개발하고, 이를 전문의의 판독과 비교하였다. 대상과 방법: 디지털 카메라가 장착된 안저 촬영기를 이용하여 촬영각 60o로 얻은 1,520×1,080 화소의 컬러 안저사진 100예를 분석하였다. MATLAB을 이용하여 저자들이 개발한 프로그램으로 시신경유두와 황반의 중심을 분할, 판정하고, 이 두 점을 잇는 직선과 시신경유두중심을 지나는 수평선이 이루는 각도를 계산하여 전문의의 판독과 비교하였다. 결과: 기술한 방법으로 시신경유두와 황반 영역을 자동으로 분할하고 각각의 중심을 찾은 뒤 안구 회선을 측정할 수 있었고, 측정된 회선 각도는 3.02±1.24o였다. 전문의의 판독에 의한 회선 각도는 3.13±1.98o였으며, 컴퓨터 프로그램에 의한 측정값과의 차이는 없었다(p>0.05; paired t-test). 결론: 컴퓨터 프로그램을 이용한 안저 회선 측정법은 전문의의 판독과 잘 일치하였으며, 정확한 진단과 객관적 평가에 도움을 줄 수 있을 것이다. Purpose: Computer-based objective measurement of the ocular cyclotorsion using digital fundus photograph was developed and the result was compared with that of the ophthalmologist. Methods: One hundred cases of the color digital fundus photographs acquired with the field angle of 60o, 1,520×1,080 in resolution were analyzed. Optic disc and macula were segmented with the program developed by authors on MATLAB. The angle between the horizontal line running through the center of the optic disc and the line connecting the center of optic disc and macula was measured, and compared with the torsion determined by the ophthalmologist. Results: Optic disc and macula were segmented and the mean of the calculated angle was 3.02±1.24o. The mean of the torsion determined by the ophthalmologist was 3.13±1.98o and there was no difference between the two (p>0.05; paired t-test). Conclusions: The measurement of the cyclotorsion using computer program showed good coincidence with that of the ophthalmologist and it will help precise diagnosis and the objective evaluation of the disease for the physicians.

순환식 수경재배 오이의 착과 절위가 생육 및 품질에 미치는 영향

정종모(Jong Mo Jung),김희곤(Hei Gon Kim),서종분(Jong Boon Seo),이숙재(Suk Jae Lee),문형수(Hyung Soo Mun),박권우(Kuen Woo Park) 한국원예학회 2002 한국원예학회 학술발표요지 Vol.2002 No.6