초음파 영상 데이터를 활용한 내장기 추나요법 시술 부위 탐색 연구

이상진 ( Sang-jin Lee ),기성훈 ( Sung-hoon Ki ),고동균 ( Dong-kyun Koh ),이상훈 ( Sang-hun Lee ),임형호 ( Hyoung-ho Lim ),송윤경 ( Yun-kyung Song ) 한방재활의학과학회 2022 한방재활의학과학회지 Vol.32 No.2

Objectives This study was conducted to confirm anatomical information near the treatment areas of visceral chuna manual therapy and to secure stability and effectiveness during the treatment. Methods For 50 healthy adult men and women, a total of 13 ultrasound images were taken of the 7 treatment areas which are the representative treatment areas of visceral Chuna manual therapy. Results The treatment area of the bottom of the liver can be palpated around the right side ST19 and CV14. The treatment area of the gallbladder and the common bile duct can be palpated around the right side SP16 and ST20. The treatment area of the cardia and the pylorus can be palpated around the left side KI21, right side ST20, ST21, KI19, KI20, CV12, and CV13. The origin point of the mesentery root can be moved to the left and lower left from CV12 and can be palpated. The treatment area of the ileocecal valve and the cecum can be palpated around the right side SP14. The treatment area for the colic flexure can be palpated around the both side LR13. The treatment support point for the kidneys can be palpated around both side BL51. Conclusions It is thought that if the ultrasound image data from the meridians around the treatment site is used as an auxiliary, it will be more effective in terms of safety and effectiveness during the treatment of visceral Chuna manual therapy. (J Korean Med Rehabil 2022;32(2):139-154)

Microcomputer에 의한 直流電動機 速度制御

李炯基 釜山工業大學校 1983 論文集 Vol.24 No.2

Speed control of D.C motor can be classified into four types according to the degree of accuracy and the response time required for a given application. The computer can execute firing cantrol by D/A converter and the motor armature voltage is supplied from DC chopper-fed. The control system applies PI algorithhm to motor speed regulat to achive the desired speed This paper presents the harware, software and the speed response characteristics to ?? and ?? of the microcomputer-??ontrollod speed regulator.

흉요추부 방출성 골절의 척수강 복원에 대한 방사선학적 고찰

이준규,오기영,김형성 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

We analyzed 44 cases of burst fractures on the thoracolumbar junction which were operated with posterior instrumentation technique at the Department of Chungnam University Hospital from 1988 to July 1995. Reduction of the spinal fragment through kyphosis correction and distraction were evaluated using conventional radiographs and CT imaging between postop., POD 6 months and POD 12months in 23 cases of burst tractures. The purpose of this study was to evaluate the spinal canal remodeling using radiographic means. The result were as follows : 1. The average kyphotic correction angle was 7.4˚ and there was no correlation between the reduction of retropulsed fragments and the amount of kyphotic angle correction. 2. There was significantly correlation between the amount of reduction of posterior vertebral body and amount of retropulsed fragment. 3. There was no correlation between the degree of canal compromise and the Denis type of thoracolumbar burst fractures. 4. There was significantly correlation between the shape of the patent portion of the spinal canal and neulologic deficits.

이온화방사선에 의한 느타리버섯(Rleurotus ostreatus)의 ITS2 염기서열 변화

이영근,장화형,한갑진,고동규,이기성 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.4

rDNA의 ITS2(internal transcribed spacer 2)부위에 대한 이온화방사선(gamma-ray)의 영향을 알아보기 위해서 감마선을 조사한 느타리버섯(Pleurotus ostreatus)의 5종의 변이중에서 ITS2의 염기서열을 결정하였다. ITS2의 염기서열은 1 kGy 조사군(PO-5, PO-6, PO-15와 PO-16)에서 변화되지 않았으나, 2kGy 조사군(PO-14)에서는 1개의 염기가 치환되었다. RAPD(ramdomly amplified polymorphic DNA) 양상에 의한 유전유사도의 변화가 다양하였고 섬유소성 고체검정 배지에서도 다양한 생장특성을 나타내었다. 본 연구결과는 ITS염기서열이 이온화 방사선에 의해 선량의존적으로 변화될 수 있음을 시사해 주었다.

비글개에서 분만 후 자궁수복의 연속적 초음파상

손형원, 김홍석, 김형진, 김일화, 이기창, 이청산, 강현구 충북대학교 동물의학연구소 2006 Journal of Biomedical and Translational Research Vol.7 No.2

본문참고

혈관 반응성에 대한 Cyclooxygenase 억제제 효과와 Cyclooxygenase 발현 변화

이기영,박진우,엄은아,강영진,이광윤,최형철 영남대학교 의과대학 2006 Yeungnam University Journal of Medicine Vol.23 No.1

진통과 해열작용을 가진 NSAIDs는 소화기계에 대한 부작용 때문에 COX-2 선택성 억제제로 대체되고 있다. 그러나 COX-2 선택적 억제제는 심혈관계에 대한 부작용이 보고되고 있어 혈관 평활근에 대한 직접적인 연구가 필요하다. 이에 본 연구에서는 혈관 반응성에 미치는 celecoxib와 aspirin, indomethacin의 영향을 비교 분석하였다. 또한 COX-1, COX-2 단백질 발현에 대한 indomethacin과 NO 공여제의 영향을 조사하였다. Phenylephrine 유발 수축반응에서 전처치 된 celecoxib, indometacin, aspirin 순서로 혈관 반응성을 증가시켜, cyclooxygenase를 억제하면 혈관 수축성물질에 대한 반응성이 커질 수 있음을 나타낸다. 이중 cyclooxygenase에 대해 비가역적으로 강한 억제를 나타내는 aspirin이 제일 강한 효과를 나타내어 여기에 대한 연구는 더 필요할 것으로 생각된다. 혈관평활근 세포의 COX-2 단백질 발현은 indomethacin과 SNP, NOR-3 처치에 의해 증가되었으며, LPS를 이용하여 혈관염증을 유발시키는 경우 혈관평활근 세포의 COX-2 단백질 발현이 증가되었고, 이 상태에서 SNP 100μM 전처치로 COX-2 단백질 발현을 감소되었으며, NOR-3 100 μM은 COX-2 단백질 발현을 증가시켰다. LPS 유도 nitrite 생성에서 NOR-3는 SNP 보다 더 많은 nitrite를 생성시켰다. 이는 혈관의 수축반응에서 aspirin은 강한 상승작용을 유발하고, 혈관평활근 세포의 COX-2 발현은 NO 공여제, 혈관염증 유무에 따라 차이가 있는 것을 나타낸다. Background: There is controversy regarding whether COX-2 specific inhibitors are associated with elevation of blood pressure. We compared the effects of aspirin, indomethacin, and celecoxib for vascular reactivity induced by phenylephrine. We also tested the effects of indomethacin and NO donor on COX-1 and COX-2 protein expression, as well as nitrite production in culture medium of vascular smooth muscle cells. Materials and Methods: In this experiment, we used the isometric tension study for vascular reactivity. After 45 minutes of pretreatment with aspirin, indomethacin, celecoxib, and phenylephrine induced contractions were tested. COX-1 and COX-2 protein expressions were analyzed by Western blot and nitrite production by the Griess reaction. Results: Although celecoxib pretreatment caused enhanced arterial contraction, aspirin pretreatment induced more potent arterial contraction than celecoxib in the isometric tension study of rabbit femoral artery. COX-1 protein expression was unchanged by indomethacin, SNP and NOR-3; COX-2 protein expression was increased by the addition of indomethacin, SNP, and NOR-3. Especially, NOR-3, a NO donor, significantly increased COX-2 protein expression with unstimulated conditions as well as LPS stimulation. Induction of nitrite production was higher with NOR-3 treatment than SNP treatment with LPS stimulation. Conclusion: These results suggest that aspirin caused more potent vascular contraction than celecoxib and indomethacin. COX-2 expression in VSMC depended on the types of NO donor and LPS stimulation.

느타리버섯(Pleurotus ostreatus) 재배균상에 오염되는 Rhizoctonia solani 유사균의 특성

이영근,장화형,김진규,김재성,이기성 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.4

느타리버섯(Pleurotus ostreatus) 재배균상은 흔히 토양, 공기 중 곰팡이에 의해 오염되어 자실체 생산량이 감소되곤 한다. 느타리버섯 재배균상에서 3종류(Rs-1, RS-2와 RS-3)의 오염균주를 분리하여 internal transcribed spacer(ITS)의 염기서열을 분석하였다. 이들의 ITS염기서열은 식물 병원성 사상균의 일종인 Rhizoctonia solani와 매우 높은 상동성을 보였다. 이들 오염균주들의 영양배지와 lignin 배지에서 균사체 생장율은 느타리버섯보다 각각 수배 및 수십배나 높았다. 세포외분비효소의 활성도는 오염균주들의 경우 느타리버섯과 비교하여 매우 낮은 활성도를 보였다. 느타리버섯과의 혼합배양 결과 오염균주들은 느타리버섯의 균사체 생장 및 자실체 형성을 심하게 저해하였다. The contamination of air- and soil-borne microbes could occur and result in the reduction of fruiting body formation during cultivation of Pleurotus ostreatus. Three contaminants(RS-1, RS-2 and RS-3) were isolated and showed higher homology to the plant pathogenic fungus, Rhizoctonia solani by internal transcribed spacer(ITS) analysis. The rates of their mycelial growth on the lignin specific medium and complete medium were several times higher than those of P. ostreatus. The activities of the extracellular enzymes of three contaminants were lower than those of P. ostreatus. During oyster mushroom cultivation(P. ostreatus) together with these contaminants, the mycelial growth and fruiting body formation of P. ostreatus was seriously repressed.

컴퓨터 시뮬레이션에 의한 밀링머시인의 精密度解析에 關한 硏究

李起卨,金敎亨,文鍾石 嶺南大學校 工業技術硏究所 1986 연구보고 Vol.14 No.1

Relationship between geometric errors which are due to X,Y,Z axis motion in milling machine and workpiece error is analyzed and the Simulation program that can forecast volumetric error in the working space of machine tool is developed. If the simulation program in this study is utilized, the volumetric error can be compensated in working space of machine tool because volumetric error can be forecasted in advance of machining by this simulation program. It is considered that the simulation program developed in this study can be applied to numerical control to improve workpiece accuracy.

可變構造시스템(VSS)을 이용한 直流 서어보 驅動裝置 制御에 관한 硏究

李炯基,權世鉉,金錫哲 釜山工業大學校 1990 論文集 Vol.32 No.-

A control system of dc machine position, speed or current control based on variable structure system approach is presented. The deliberate introduction of sliding mode leads to good dynamic and steady state behavior of the overall system. Amethod of the switching function estimation based on control error and armature current information is proposed. In addition the external torque observer is constructed. The simulation of the proposed control result shows that the system motion is as it was predictioned from theoretical analysis.

감광제/광촉매에 의한 공기오염물질 제거

이재구,안기창,박주형,권정욱 충북대학교 첨단원예기술개발연구센터 1999 연구보고서 Vol.4 No.-

일반 주거환경 또는 재배시설 내의 공기오염물질인 농약 및 병원성 미생물을 인위적으로 제거하기 위해서 자연광 또는 인공광 조건하에서 몇몇 감광제/광촉매에 의한 광분해 촉진효과와 미생물의 살균효과 시험을 수행하였다. 광촉매로는 반도체 물질인 PC-1과 PC-2, 그리고 산화제로 사용되는 PC-3, PC-4, PC-5 및 PC-6과 감광제로 PS-7과 PS-8을 선발하였다. 그리고 시험화합물로는 유기인계 살충제인 dichlorvos와 dicarboximide계 살균제인 procymidone, 환경오염물질인 methyl tert-butyl ether (MTBE)를 선정하였고, 유해 미생물로는 Pseudomonas putida, Phytophthora capsici, Salmonella typhimurium, 및 Escherichia coli를 선정하였다. Dichlorvos의 경우에는 자연광과 인공광 조건하에서, 광촉매 무처리구에 비해 각각의 광촉매가 처리된 모든 처리구에서 4배 이상의 광분해 촉진효과를 보였으나, MTBE의 경우에는 단지 광촉매 PC-1 처리구만 이 광촉매 무처리구에 비해 약 17배 이상의 분해 촉진효과를 보였다. 또한 procymidone의 경우에도 PC-1, PC-6 및 PS-8에 의한 광분해가 약 3배 이상 촉진되었다. 공기 중의 미생물을 제거하기 위한 예비시험에서는 미생물 현탁액에 PC-1을 첨가하고 인공광을 조사함으로서 미생물의 생육이 저해됨을 확인할 수 있었다. 또한 평판배지에 도말된 Salmonella typhimurium은 광촉매 PC-1의 주변에서 미생물 생육이 저해됨을 보였다. 이상의 결과에서 볼 때, 광조건 하에서 이러한 감광제/광촉매를 이용한 기술은 농약을 비롯한 여러 환경 오염물질을 제거하여 재배시설 내의 작업자와 일반 대중의 환경오염원에 대한 노출을 예방할 수 있을 것으로 기대된다. For the artificial removal of the air pollutants such as pesticides, environmental toxicants, and pathogenic microorganisms in the greenhouse or the living environment, the accelerated photodegradation and the biocidal effects by some photosensitizers (PS)/photocatalysts (PC) were tested under the sunlight and/or artificial light. The selected photosensitizers/photocatalysts were the semiconductors (PC-1 and PC-2), the oxidizers (PC-3, PC-4, PC-5 and PC-6), the aromatic ketone (PS-7) and the aromatic amine(PS-8). The test toxic pollutants included the organophosphorus insecticide dichlorvos (DDVP), the dicarboximide fungicide procymidone, and the gasoline additive, methyl tert-butyl ether(MTBE) as the organic pollutants, and Pseudomonas putida, Phytophthora capsici, Escherichia coli and Salmonella typhimuriums as the pathogenic organisms. In the case of dichlorvos, all the photocatalysts selected showed more accelerated photodegradation than the control without photocatalyst under both the sunlight and artificial light. Whereas, only the photocatalyst PC-1 accelerated the degradation of MTBE about 17 times more than the control under both the sunlight and artificial light. Procymidone was much more degraded by the photosensitizer PS-8 and the two photocatalysts (PC-1, PC-6) than by PS-7. In the preliminary experiments to diminish the population of the microorganisms in the air, the photocatalyst-1 added to the microbial suspensions obviously inhibited the microbial growth under the artificial light. The photocatalyst-1 showed the bactericidal activity against Salmonella typhimurium spread on the nutrient broth agar medium. These results suggest that the photosensitizers/ photocatalysts under the light can remove some air pollutants and hence they can be used to reduce the exposure of the workers in the horticultural facilities and/or the public in the environment to the harmful pollutants.