스마트 미디어 카드를 이용한 교통사고 영상 저장 방법

이경복,박기현,한민홍 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(2)

This paper describes a method for saving traffic accident images in SMC(Smart Media Card), which is served as objective proof. SMC served being small-sized, strong, easy to attach and take off, which enables users image and voice-information service such as digital camera, MP3 Player, PDA and so on. Above all on account of it's high-speed in saving. The result of using SMC is saved pictures for 15 second before and after traffic accident image(320×240×8bit) into 8 frames/sec using a voice-recognition method or image recognition method. These pictures can be revived by PDA or mobile computer through up-loading serial/parallel communication or USB communication. This method could be applied to develop BLACKBOX.

장기재배 시험에 의한 중금속 오염토양의 식물정화

정구복,김원일,이종식,김경민 한국환경농학회 2002 한국환경농학회지 Vol.21 No.1

중금속 오염토양에 대한 식물학적 복원에 적합한 식물종 탐색을 위하여 수목류 5종, 화홰류 2종 및 잔디를 대상으로 제련소인근 중금속 오염지 포장에서 3년간 재배하여 연차별로 식물중에 흡수된 중금속 함량을 조사하였다. 식물의 건물중은 양황철, 팽나무, 적단풍, 사철나무, 회양목 순이었고, 연차별 건물중의 증가도 팽나무, 양황철, 적단풍이 높게 나타났다. 식물의 중금속은 지하부가 지상부보다 높은 함량을 보였으며, 식물중 회양목은 뿌리에서 매우 높게 나타났다. 공시식물의 3년차 총 흡수량은 카드뮴이 양황철, 팽나무, 단풍나무, 구리가 팽나무, 양황철, 회양목, 납이 양황철, 팽나무, 단풍나무, 비소가 회양목, 단풍나무, 양황철 순으로 높게 나타났다. 이상의 결과에서 식물의 건물중과 중금속 흡수량을 볼 때 양황철, 회양목, 단풍나무 및 팽나무 등이 중금속으로 오염된 토양에 대한 정화 식물로 이용할 수 있을 것으로 생각되었다. In order to select proper plants for phytoremediation at heavy metal contaminated areas, eight species of non-edible plants were cultivated at the heavy metal contaminated soils near a metal smelter. The content of the absorbed heavy metals (Cd, Cu, Pb and As) at different part of the plants were analyzed. Plants included five tree species (Populus nigra x P. maximowiczii, Euonymus japonica, Acer palmantum, Celtis sinensis, Buxus microphylla), two flower species (Rhododendron lateritium, Calendula officinalis), and lawn (Zoysia japonica). Biomass yield of tree species was higher than those of flower or lawn species. Heavy metals were highly accumulated in roots compared to those in leaves and stems. The concentrations of Cd, Cu, Pb, and As in Buxus microphylla were greater than those in other plant species. Total absorbed Cd and Pb contents, from high to low by each plant in experimetal plots were in the order of Populus nigra x P. maximowiczii, Celtis sinensis and Acer palmantum. They were Celtis sinensis, Populus nigra x P. maximowiczii and Buxus microphylla for Cu, and Buxus microphylla, Acer palmantum and Populus nigra x P. maximowiczii for As. It was estimated that among eight plant species used in the experiment Populus nigra x P. maximowiczii, Buxus microphylla, Acer palmantum, and Celtis sinensis were the most effective species for phytoremediation in the heavy metals polluted areas considering biomass yield and heavy metal uptake.

五加皮의 效能에 대한 硏究

최민호,이계복,조규원,박진영,김경수,송정석,한종현 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1

The purpose of this study is to measure the changes of regional cerebral blood flow (rCBF) and blood pressure (BP) of Cortex Acanthopanacis in rats, and to determine the effect of Cortex Acanthopanacis on phenylephrine (PE) induced contraction of isolated rat thoracic aorts. The measurement was continually monitored by laser-doppler flowmeter (Transonic Instrument, USA) and pressure transducer (Grass, USA) in anesthetized adult Sprague-Dawley rats through the data acquisition system composed of MacLab and Macintosh computer. Contractile force was measured with force displacement transducer under 1.5 g loading tension. The result of this experiment was as following; 1. Cortex Acanthopanacis did not effect the changes of rCBF and blood pressure significantly. 2. Contractions evoked by phenylephrine were decreased significantly by Cortex Acanthopanacis 3. L-NNA, ODQ, atropine and indomethacin significantly altered the relaxation of Cortex Acanthopanacis. 4. Propranolol did not change the relaxation of Cortex Acanthopanacis. These results indicate that Cortex Acanthopanacis did not change the rCBF and BP, but Cortex Acanthopanacis can relax PE induced contraction of isolated rat thoracic aorta and that this increasing contraction related to endothelium and various mechanism.

동면동물 혈액상의 생리적 변화에 관한 연구

임영민,한현주,박래백,김효성,박경수,노영복 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1

활동기와 동면기에 동면동물인 살모사에 있어서 혈액내 가스함량과 부분압인 TCO_2, P0_2, PO_2 및 pH와 일반적인 혈액상인 적혈구수, 백혈구수, 혈색소, Hematocrit 등의 변화를 조사한바 다음과 같이 요약하였다. 1. 총이산화탄소량 (TCO_2), 이산화탄소부분압P(C0_2), 산소압(PO_2)과 pH는 활동기보다 동면기 에 증가하였다. 2. 적혈구수, 혈색소, 적혈구백분율(Hematocrit)은 활동기보다 동면기에 약간 증가하는 경향이었다. 3. 백혈구수는 활동기보다 동면기에 뚜렷한 감소를 보였다. 환경온도와 체온의 저하로 인한 혈액내의 변화는 인정할 수 있었다. This thesis were performed in order to study physiological changes of vipers in the active phase and hibernation phase, Physiological changes were blood gas volume and pressure (TCO_2, PCO_2, PO_2), blood pH and blood pictures (RBC, WBC, Hemoglobin, Hematocrit) The obtained results were summalize as follows; 1. TCO_2, PCO_2, PO_2 and pH increased considerably in hibernation phase, compared with active phase. 2. RBC, Hemoglobin and Hematocrit increased slightly in hibernation phase, compared with active phase. 3. WBC, decreased considerably in hibernation phase, compared with active phase 4. The decrease of environmental and body temperature showed change of blood components.

만성 경막하혈종의 단순 천공 배액술후 재발 및 두개강내 합병증 발생과 관련된 요인

김영규,민경수,이무섭,김동호,복원길,홍석기,김호재 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2

연구목적: 만성 경막하혈종은 두개골 천두술및 혈종배액으로 쉽게 치료될 수 있는 예후가 양호한 질환으로 알려져 있으나, 혈종의 재발 및 합병증이 드물지 않게 발생하기도 한다. 본 연구는 두개골 천두술 및 혈종배액으로 치료받은 102예의 만성 경막하혈종 환자들을 분석하여 혈종의 재발 및 수술후 합병증과 관련된 요인들을 분석하고자 하였다. 대상 및 방법: 만성 경막하혈종으로 진단되어 두개골 천두술 및 혈종배액술법으로 본원 신경외과에서 수술치료받은 102명의 환자를 대상으로 하였고, 입원진료기록 및 방사선소견을 후향적으로 분석하였다. 재발 및 합병증의 발생과 관련된 요인으로는 수술전 환자의 나이, 의식상태, 양측성여부, 뇌실질의 위축정도, 수술후 기뇌의 양, 전신질환여부에 대하여 분석하였다. 결과: 재발의 빈도는 9.8% 였으며 재발과 관련된 요인으로는 양측성, 고령, 수술후 뇌실질재팽창정도(뇌 실질위축, 잔여수액, 기뇌)가 관계가 있었으나 환자의 예후에는 영향이 없었다. 합병증의 종류에는 수술후 급성출혈 5예 및 경막하 농양 1예가 있었으나 이는 모두 출혈성전신질환 또는 면역결핍증이 동반된 환자에서 발생하였고 예후가 불량하였으며, 긴장성 기뇌가 1예발생 하였다. 결론: 전신질환의 동반여부가 합병증의 발생 및 환자의 예후에 가장 중요한 영향을 미쳤으며, 비록 예후에는 영향이 적으나 혈종의 재발의 빈도가 드물지 않으며 기뇌의 방지 및 배액방법의 개선으로 재발의 빈도를 줄일 수 있을 것으로 생각된다. Purpose : Most of chronic subdural hematomas(SOH) are amenable disease with simple cranoistomy drainage, but the recurrence of SDH or development of complications after surgery is not uncommon. To see the prognostic factors related to outcome the recurrence of chronic subdural hematoma and development of complication were analysed in 102 cases of chronic SDH after craniostomy drainage. Materials and Methods: We studied 102 chronic SDH patients treated with craniostomy drainage. Clinical and radiological records were reviewed retrospectively. We analysed the recurrence and complication rate, factors related to the development of recurrence and complications. Results: The rate of recurrence of chronic SDH was 9.8% and factors related to recurrence were bilaterality, old age, and postoperative intracranial environments for brain reexpansion(degree of brain atrophy, amount of residual fluid, amount of intracranial air). Intracranial complications after surgery were developed in 7 cases(6.9%), 5 postoperative bleedings, 1 tension pneumocephalus, 1 subdural empyema. Conclusion : Preoperative clinical condition and association of serious sytemic disease were of major importance in prognosis. The recurrence of chronc SDH was not uncommon, Even though the recurrence was not related to the outcome, great care should be paid on the patients with high risk group.

안지오텐신 변환효소 억제제와 안지오텐신 II 수용체 차단제 투여 후 발생한 급성 신부전과 폐부종으로 전원된 선천성 단일신 환자의 치료 1예

백두현,김경진,홍성철,강석형,송하응,김혜인,김수현,오현정,강혜원,김서우,유민아,류동열,최규복,강덕희 이화여자대학교 의과대학 2010 EMJ (Ewha medical journal) Vol.33 No.1

Blockers of renin-angiotensin system(RAS) including ACE inhibitor or ARB are one of the most frequently prescribed medications for the treatment of hypertension, heart failure and proteinuria. One of the major side effects of these RAS blockers is the deterioration of renal function, mainly due to a reduction of intraglomerular pressure. Therefore, close monitoring of renal function is recommended when RAS blockers are initially prescribed, especially for the patients with impaired renal function. We report a patient who was transferred to our hospital due to the sudden development of oliguria and dyspnea after treatment for hypertension with ACEi and ARB. She was finally diagnosed as RAS blocker-induced acute renal failure with pulmonary edema complicated on congenital solitary kidney. After hemodialysis and conservative treatment, her renal function was recovered with maintenance of normal urine output. Conclusion:This case highlights the necessity of the functional and structural evaluation of kidney to prevent the serious complication such as acute renal failure before the administration of ACEi and/or ARB.

노랑느타리버섯의 원형질체 분리에 관한 연구

박용환,민경희,이연희,유영복 한국균학회 1986 韓國菌學會誌 Vol.14 No.2

The optimal conditions for high yields of mycelial protoplasts from P. cornucopiae were established. The concentraion of enzyme system containing Novozym 234, β-D-glucanase and β-glucuronidase was 5㎎ ㎖^(-1) each. The osmotic stabilizer most effective for protoplast isolation was 0.6 M sucrose. The optimal reaction time of mycelium with the lptic mixture was 90 thin is a shaking condition at 120 strokes min^(-1). When the myelium of P. cornucopiae was cultured for 4 days on mushroom complete medium at 28℃, the formation of protoplast was effective. When the pH of the digestion mizture with 0.6 M sucrose as stabilizer vazied between pH 4.0 and 7.0. the production of protoplasts was effective in phosphate buffer (pH 6.2) and Na-maleate buffer (pH 5.0). Generally, phosphate buffer was more effective for protoplast isolation than Na-maleate buffer, but 0.6 M sucrose osmotic stabilizer without adjusting pH was most effective. Using these conditions, protoplasts from P. cornucopiae were obtained at a ratio 1×10^7 ㎖^(-1).

Ca^(2+)-감수성 증가기전과 평활근 수축

이연리,김보경,최원호,김태경,이창권,배영민,조성일 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-

Smooth muscle contraction is regulated by intracellular Ca^(2+) ([Ca^(2+)]_(i)) and the phosphorylation of myosin light chain (MLC). However, various kinds of vasoconstrictors induce a further contraction at a given [Ca^(2+)]_(i), and elicit a sustained contraction under Ca^(2+) -depleted conditions, referred to as "Ca^(2+) -sensitization", in intact and membrane-pen-neabilized smooth muscle. Previously, several molecules, including protein kinase C (PKC), RhoA, and mitogen-activated protein kinases (MAPK), have been suggested as candidate regulators of Ca^(2+) -sensitization. In the present review, we describe the role of PKC, RhoA, and MAPK in the regulation of Ca^(2+) -sensitization, and suggest a new model in research for the regulation of smooth muscle contraction.

활동기와 동면기 살모사의 위장관 점액세포내 점액질에 관한 조직화학적 연구

한현주,박래백,임영민,김효성,박경수,노영복 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1

살모사(Aekistrodon halys Pallas)의 위장관 점액세포내 점액질을 활동기와 동면기로 나누어 조직화학적으로 비교관찰하였다. 일반관찰을 위하여 H-E 염색을, 조직화학적 소견을 관찰하기 위하여 PAS reaction, Ab2.5 염색, AB1.0염색, AB2.5-PAS 염색, AB1.0-PAS 염색 AF1.7 염색 및 AF1.7-AB2.5 염색등을 시행하였다. 위(胃)는 표면점액세포와 점액경세포의 점액질을, 소장은 은롸롸 융모의 점액세포를 관찰한 결과를 다음과 같이 요약하였다. 1. 활동기와 동면기의 위점막에서는 현저한 차이는 없으나, 소장점막은 동면기에는 점막 주름수가 감소하고 높이가 낮아지며 점액세포가 위축되었다. 2. 위 표면점액세포는 활동기에 중성점액질과 약간의 Sialomucin을 포함한 산성점액질로 구성되었으나, 동면기에는 중성점액질과 Sialomucin이 약간 감소하였다. 3. 위 점액경세포는 활동기에 중성점액질만을 포함하고 있었으나, 동면기에는 Sialomucin을 포함한 산성점액질이 소량 검출되었다. 4. 소장 점액세포는 활동기에 산성점액질과 중성점액질로 구성되었으며 산성점액질에는 Sulfomucin과 Sialomucin이 포함되어 있었으나, 동면기에는 Sulfomucin과 Sialomucin이 다소 감소하였다. This study was performed in order to investigate the histochemical properties and compositions of the mucosubstances in the mucous of the gastrointestinal tract of Vipers, Agkistrodon halys Pallas, in active and hibernating phases. The specimens from stomach and small intestine were fixed in 10% neutral buffered formalin, embedded in paraffin wax, sectioned at a thickness of 4㎛, and stained with Hematoxyling-eosin for general histological observation and with PAS reaction, Alcian blue pH 2.5 or 1.0, Alcian blue pH 2.5-PAS or 1.0-PAS reaction, Aldehyde fuchsin pH 1.7, and Aldeliyde fuchsin pH 1.7-Alcian Blue pH 2.5 for histochemical finding. The mucous compositions in mucous cells of the gastrointestinal tract examined by their stain reaction were neutral mucin, acidic mucin, sulfomucin, sialomucin, The results obtained were as follows; The folds of the gastrointestinal tract in the hibernating phase, compared with the active phase, shrink and lower. Also, the shrinkage of epithelial cells were observed in the hibenating phase. The surface mucous cells of the stomach in the active phase composed mainly neutral mucin and a little amount of acidic mucin including sialomucin, but in the hibernating phase neutral mucin and sialomucin slightly decreased. The mucous neck cells of the stomach in the active phase constituted mainly neutral mucin, In the hebernating phase the mucous neck cells were composed of neutral mucin and a little amount of acidic mucin contained sialomucin. The mucous cells of the small intestine in the active phase consist of neutral mucin, acidic mucin including sulfomucin and sialomucin but in the hibernating phase sulfomucin and sialomucin slightly decreased.

활동기 척추동물의 십이지장 배상세포내 점액질에 관한 조직화학적 연구

박래백,한현주,임영빈,김효성,박경수,노영복 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1

본 실험은 다람쥐(Tamias sibiricus asiaticus Gmeli), 살모사(Agkistrodon halys Pallas), 황소개구리(Rana catesbeiana Shaw), 뱀장어(Anguilla japonica Temminck et Schlegel)등의 소장 배상세포내 점액질에 대한 성상을 밝히기 위하여 PAS reaction, Alcian blue pH2.5 및 Alcian blue pH0.4, 그리고 ABpH2.5-PAS reaction 복합염색등을 시행한 결과 다음과 같은 결론을 얻었다. 1. 사용한 각 동물에 있어서 소장 배상세포는 중성점액질, 약산성 및 강산성 황화점액질을 포함하고 있었다. 2. 중성점액질이 각 동물에 있어서 가장 안정된 분포를 보였으며 약산성 황화점액질도 비교적 고르게 분포되어 있었다. 3. 강산성 황화점액질은 다람쥐, 살모사 및 황소개구리에서는 소량 관찰되어 불안정한 분포를 보였으며 뱀장어에서는 관찰되지 않았다. 4. 각 실험동물의 십이지장 배상세포내에 포함된 점액질의 성상은 동물에 따라서 그 양과 염색성에 다소의 차이를 인정할 수 있다. In general, the goblet cells in the small intestines of experimental animals contained neutral mucosubstances, weakly and strongly acidic sulfated mucosubstances. Neutral mucosubstances show most stable distribution in the experimental animals. Mucosubstances in the small intestines of eels were composed of only neutral mucosubstances and weakly acidic sulfated mucosubstances. The contents and stain properties of mucostances produced in the intestinal goblet cells vary a little in portions within a species and in the same cell types of different species. This studies were performed in order to study composition of the mucosubstance in the goblet cells of small intestines of the various vertebrates. The specimens used in this study were obtained from the small intestines of 4 species of vertebrates, squirrels (Tamias sibiricus asiaticus Gmelin), vipers (Agkistrodon halys Palls), frogs (Rana catesbeiana Shaw), eels (Anguilla japonica Temminck et Scchlegel). All specimens were fixed in 10% neutral buffered formalin, embedded in paraffin wax, and sectioned at a thickness of 4㎛. They were stained with hematoxylin-eosin for general histological observation and with Periodic Acid-Schiff reaction, alcian blue pH2.5 and 0.4 and alcian blue pH2.5-Periodic Acid-Schiff reaction for detection of the mucosubstances. The mucous compositions in the goblet cells of the small intestines of various vertebrates examined by their staining reaction were neutral mucosubstances, weakly and strongly acidic sulfated mucosubstances.