운동부하양식에 따른 심폐 능력의 비교분석

전태원,우재홍,신창호,이기봉,이광희,박익렬,박성태,강현주 서울대학교 체육연구소 2000 서울大學校 體育硏究所論集 Vol.21 No.1

The purpose of this study this study was to comparative analysis the V02max and HR through arm ergometer exercise, bicycle ergometer exercise, and treadmill exercise and to propose correct data of aerobic ability according to GXT. Subjects for study were 8 healthy male students. The process of the test were performed maximal GXT on arm ergometer exercise, bicycle ergometer exercise, and treadmill exercise and measured V02max, max heart rate and recovery time of 3 VO2 and heart rate respectively. The conclusions were supported by the findings of this study: 1.There were significant differences between test style and V02/kg/min(p<.05). 2.There were significant differences between test style and test stage at heart rate(p<.05) There were no effect of reciprocal action. Therefore, V02/kg/min should be on individual exercise prescription guiedlines for health promotion should be provided proper GXT which are arm ergometer exercise, bicycle ergometer exercise, and treadmill exercise.

학교평생교육에 대한 현직교사의 인식 조사 연구 : 서울시 초등학교 교사를 중심으로

전주성,유은수,한수연,이현주,임희연,이희송 한국성인교육학회 2007 Andragogy Today : International Journal of Adult & Vol.10 No.3

이산사건시뮬레이터를 이용한 무선 LAN MAC simulator 구현

주영혜,안치훈,박세현,김준년 중앙대학교 정보통신연구소 2000 정보통신연구소논문집 Vol.2 No.2

최근 무선 랜의 사용이 증가함에 따라 무선 랜의 성능을 측정할 수 있는 시뮬레이션에 대한 필요성이 대두되고 있다. 시뮬레이션의 가장 중요한 기능적인 면은 시뮬레이션의 신뢰도를 결정하는 IEEE 802.11 표준문서에 기초한 정확한 구현이다. 따라서 이 논문은 IEEE 802.11 표준문서에 기초한 무선랜 시뮬레이션, WLANSim의 구현에 대하여 설명하고 있다. 본 논문은 WLANSim의 소개, 상세한 설명과 WLANSim을 이용하여 실제로 CSMA/CA에 서 충돌발생을 측정한 결과도 실었다. 시뮬레이션의 결과는 제안된 시뮬레이션 WLANSim은 IEEE 802.11 표준문서를 따르고 그에 따라 구현되었음을 보여주고 있다. With the ever increasing use of wireless LAN, the simulator that could measure the performance of wireless LAN is getting much attention these days. The most important functional aspect of the simulator is the exact implementation of IEEE 802.11 standard which decides the reliability of the simulation results. This paper describes the implementation of the wireless LAN simulator named WLANSim based on the IEEE 802.11 standard. It contains the introduction and the detail description of WLANSim and the simulation results of the measurements of the collision occurrence. Simulation result shows that proposed WLANSim is implementing and following procedures described in IEEE 802.11 standard.

기존의 곡면 분할 알고리듬 비교 연구

李玄燦,朱柄俊,洪忠成 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

Recently, designing and visualizing 3D objects become getting more important issues in related industrial fields due to new trends such as Virtual Design using CAD(Computer-Aided Design) systems and high-speeded internet. In this paper, we compare the existing surface subdivision algorithms. Subdivision algorithm is a 3D modeling technique that generates a very smooth surface through many times of refinement processes that split polygons of control mesh into several smaller polygons. We examine the methods of calculating new vertices and topological algorithms of three existing subdivision algorithms, Doo-Sabin, Catmull-Clark, and Loop subdivision scheme in detail, and compare them to find the differences, merits and demerits. In calculating new vertices, Doo-Sabin scheme is simpler than Catmull-Clark and Loop schemes. But in topological algorithm, Catmull-Clark and Loop schemes are simpler than Doo-Sabin scheme.

2003년도 해양스포츠 체험활동을 통한 소아건강교실 사례 발표

김현주,이상엽,이가영,곽현,이남수,김혜선,김윤진,김인주,김용기,대학비만학회 부산분과학회 일동 대한비만학회 2003 The Korean journal of obesity Vol.12 No.4

개에 있어서 耳根部의 Lidocaine 水針에 의한 全身 無痛覺의 誘發

권현주,유건주,이상은,이정연,송근호,김명철,정성목,박성준,김덕환 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

Twelve clinically healthy mongrel dogs were used to clarify the possibility of general analgesia induction by lidocaine aquapuncture to auricular root area in the present study. The experimental animals were devided into control (6 heads) and experimental groups (6 heads), respectively. Physiological salines (3 ml/kg) were injected into both auricular root areas in control group. Lidocaine hydrochlorides (3 ml/kg) were injected into both auricular root areas in experimental group. Superficial pain, the changes of vital signs and blood leukocytes, and PCV were examined on pre, 5 min., 15 min., 30 min, and 60 min. after injection in control and experimental groups, respectively. Analgesia was not detected at all in control group, however, all experimental animals were recumbent and analgesia was generally detected in the auricles, noses, dorsal parts, ventral areas, limbs and tails from 5 to 30 minutes after injection with lidocaine hydrochloride into auricular root areas in experimental group. As for the change of vital signs, body temperature showed decreasing tendency from 5 minutes after lidocaine injection in experimental group. Heart rates and respiration rates were increased on 5 minutes after lidocaine injection and then they showed decreasing tendency in experimental group. No significant difference were found among groups. As for the changes of hematological findings, the numbers of blood leukocytes were increased till 15 minutes after lidocaine injection and then they showed decreasing tendency. PCV values were increased on 5 minutes after lidocaine injection, and then they showed decreasing tendency. However, no significant differences were observed among groups. Considering the above findings, it was thought that general analgesia was possible by aquapuncture with lidocaine hydrochloride into auricular root areas and lidocaine aquapuncture didn’t affect so much to the changes of vital signs and blood.

서울대학교 치과병원 장애인진료실의 외래환자마취 실태 분석

박창주,정준민,김현정,장기택,이상훈,염광원 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.1

치과적 장애인이란 치과진료 시 치과의사에게 자발적인 협조가 힘든 사람을 의미한다. 본 연구는 서울대학 치과병원 장애인진료실에서 치료받은 치과적 장애인 환자들의 임상진료 실태를 마취과적으로 분석하고 향후 장애인 치과치료에 대한지침 을 마련하고자 하였다. 1999년 1월부터 2002년 10월까지 서울대학교 치과병원 장애인진료실에 내원한 장애인 환자들을 대상으로 조사한 결과, 총89명의 환자들에게 93건의 치과진료가 시행되었다. 환자의 대다수는 정신지체였고 전신마취 하 보존치료를 받았다. 주로 마취유도제는 thiopental, 근이완제는 vecuronium을 이용하였으며 산소, 아산화질소, enflurane을 함께 흡입시켜 마취를 유지하였다. 총 마취지속시간과 회복실 체류시간은 각각 164.4±57.2 분과 106.2±50.5 분이었고 회복 과정에서 심각한 합병증은 관찰되지 않았다. 본 연구는 외래환자마취에 기반한 서울대학교 치과병원 장애인진료실의 치료방침에 따라 특별한 문제없이 성공적인 마취가 가능하였음을 보여 주었다. 또한 증가하는 장애인 치과치료에 대한 수요를 충족시키기 위해서 적절한 시설과 인력을 갖춘 보다 많은 외래환자마취 센터의 필요성도 제시한다고 할 수 있다. Dentally disabled person means one who have difficulty in cooperating voluntarily with a dentist for routine dental care. Seoul National University Dental Hospital (SNUDH) Dental Clinic for Disabled has worked for them under outpatient anesthesia concept. The aim of this study was to determine the anesthetic characteristics of the patients attending for dental treatment at SNUDH Dental Clinic for Disabled in order to establish better future treatment plans. The data were drawn from the patients who visited SNUDH Dental Clinic for Disabled from January 1999 to October 2002. Total 93 dental treatments for 83 patients were enrolled in this study. Most patients had mental retardation and the conservative treatments were carried out under general anesthesia. Thiopental and vecuronium were mostly used for induction agent and neuromuscular blocker, respectively. Enflurane, with oxygen and nitrous oxide, was mostly used to maintain the anesthesia. Mean total anesthetic time was 164.4±57.2 minutes and mean duration at the post-anesthetic care unit was 106.2±50.5 min. Serious postoperative complications were not observed. These results showed our successful anesthetic outcomes without any severe side effect or complication and the needs of more outpatient centers for dental care for disabled.

전신성 홍반성 루프스 환자에서 발생한 자가 면역성 간염 1례

김준재,백나나,김현정,전태주,서동대,오태훈,최원충 인제대학교 2008 仁濟醫學 Vol.29 No.-

SLE 환자에서 간 효소 수치의 상승은 여러 가지 원인에 의하여 드물지 않게 관찰될 수 있다. 이 중 자가 면역 기전에 의해 발생되는 질환으로 자가 면역성 간염과 SLE에 동반된 간염이 있으며, 두 가지 질환의 감별은 환자의 예후 및 치료에 중요하다. 따라서 간 조직 검사를 포함한 정확한 진단 기준으로 조기에 진단하여야 하며, 이에 따른 적절한 치료를 통해서 간 부전 및 비가역적 간경변증으로 진행을 방지할 수 있을 것으로 사료된다. Patients with systemic lupus erythematosus (SLE) have a 25-50% chance of developing abnormal liver tests in their lifetime and various causes are related to elevation of liver enzyme, such as hepatic involvement of lupus, hepatotoxic drug, viral infection, autoimmune hepatitis and so on. Discrimination of autoimmune hepatitis from SLE-associated hepatitis is important because complications and therapy are quite different, although both are autoimmune syndromes. Here we are presenting a case of SLE patient with type I autoimmune hepatitis proved with liver biopsy.

생쥐 대장 평활근 세포에서 내향 정류성 칼륨 전류의 특성 연구

이은주,김명,정명섭,조향훈,김기훈,하현철,김준수,최석,전제열 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Objectives: K^(+) channels play an important role in regulating cellular excitability. The aim of this study was to know whether or not inward rectifier K^(+) channel exists in colonic smooth muscle cells. Methods: Mouse colonic smooth muscle cells were isolated using collagenase, and then we recorded their membrane currents using a whole-cell patch clamp technique. Results: With 90 mM K^(+) in bath, hyperpolarization-induced inward currents from -120 mV to 20 mV with 400 ms duration at a holding potential of -10 mV showed rapid activation, inactivation and inward rectification. The inactivation showed single exponential time course. Reduction of external K^(+) to 60 mM decreased the amplitudes of the currents in whole test voltage range and shifted the reversal potential to more negative potential. The inactivation process and peak currents of hyperpolarization-induced inward currents were not affected by removing external Na^(+). External Ba^(+) blocked hyperpolarization-induced inward currents by dose-dependent manner and pure Ba^(+)-sensitive currents showed strong inward rectification. Cs^(+) also suppressed hyper- polarization-induced inward currents. Ba^(+) and Cs^(+)-induced inhibitiOn of hyperpolarization-induced inward currents was voltage-dependent, and the extent of inhibition increasing with membrane hyperpolarization. Conclusions: These results suggest that inward rectifier KU channels may exist in proximal colonic smooth muscle and may play an important role in regulating membrane potential.

정보통신과 자동차산업 융합화에 대응한 품질경영시스템 구축 방안

이재준,박주현,이홍우 한국의사결정학회 2004 경영과학연구 Vol.12 No.-

Due to the development of digital technology, new products come out with the convergence of one another. Especially telematics products show up in the new business area that is not merging the same business division products but merging IT business division products, and automobile business division ones. As IT products are merging automobile products, as quality management system(QMS) is not inevitable only in the QMS of automobile business division but also in the QMS of IT business division to acquire quality competitiveness in the new business division. On the basis of this change of business divisions, the necessity of new QMS establishment is gathering strength. So this research proposes a method to establish new QMS that is merging TL 9000 (IT division) & TS16949 (Automobile division)