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이주타,윤인석,신중진,이상헌,이행철 대한건축학회 2000 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.20 No.2
purlxose of this study is to malyse methodv sf the crplrnarh to hstuse rmd the sE)tcinl carmxnsition of the exterior sl)tcct in urban middle wand luw-rise multi-ftrrnily housing designed 1 architects 1)y case study crf ~esmf. LJrlrou middle :uo Iso- rie mufti-family lzousio is awticulated six types .arrurdiug to wnllectie tye of family unit.: sturc:rse-contrast tye , W,rirrase-rcnl type, hall tyl)e, tlaxx-family ty1 Pavilion type, extra t.V1)e. $quot;i'he resultv are rns fcIlows. StairCaSe-cfntrast type, tnircase-row type, floor-family tyke have a srirircase in main huilclint;. Pavilion type, extra tyke have two staircase in main I)uilding or a stirircave I)er buildings. It need to improvement the entrau~re area cff family-urvit and the a~pruach W house in exterior space.
이행철,윤인석 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
This study is purposed on introducing a Korean Modern Architect Ra, Sang-jin, what had been vividly producing architectures and known well at that time, but has been forgotten in only a few decades. His architectural activity could be understand as the settling down procedure of Modernism in Korea. His works show functionality and rationality in the shapes, appearances as well as plans, and the quality of progress in architectural technology; for example, Seoul Country Club House, Hanil-gwan in Myeongdong, the First Bank in Incheon, and so forth. Furthermore Ra's works were distinguished in 1) making harmony with site, 2) introducing new technology, 3) using familiar materials, 4) persisting simple form and horizontality.
Mepivacaine의 심근수축 억제기전에 대한 기계적 및 전기생리학적인 연구
박윤곤,이행철,서창국 대한마취과학회 1997 Korean Journal of Anesthesiology Vol.32 No.4
Background: The effects of various concentration (20, 50, 100? M) of mepivacaine were studied in isolated guinea pig and rat right ventricular papillary muscles by measuring the effects on myocardial contractility and electrophysiological parameters. Methods: Isometric force of isolated guinea pig ventricular papillary muscle was studied in modified normal and 26 mM K+ Tyrode's solution. Rat papillary muscle was used to evaluate the effect on Ca2+ release from the sarcoplasmic reticulum (SR) at low stimulation rates. Normal and slow action potentials (APs) were evaluated by using conventional microelectrode technique. Rapid cooling contractures (RCCs), an index of SR Ca2+ content, which are known to be activated by Ca2+ released from the SR were performed. Results: Mepivacaine caused dose-dependent depression of peak force from 0.5 to 3 Hz stimulation rates in guinea pig papillary muscles. Conduction block was frequently noted especially at higher stimulation rates (2 and 3 Hz) at all concentration ranges. In rat, ∼20% depression of peak force was shown at rested state contraction. Shortening of AP duration and rate-dependent depression of dV/dt max could be observed at 100 M mepivacaine. In 26 mM K+ Tyrode's solution, 50 and 100 M mepivacaine caused dose-dependent depression of early and late force development. In slow APs, neither shortening of AP duration nor changes of dV/dtmax were not shown at 100 M mepivacaine. ∼30% depression of RCC after 2 Hz stimulation rate was shown at 100 M mepivacaine. Conclusion: It may be concluded that the direct myocardial depressant effects of mepivacaine may partly be related to inhibition of Ca2+ release from the SR. Shortening of AP duration in normal APs seems to be partly related by blockade of TTX-sensitive $quot;window$quot; Na+ current. (Korean J Anesthesiol 1997; 32: 491∼503)
본태성 다한증환자에서 흉강경하 흉부교감신경 절제술은 기도압을 증가시킨다
김갑수,김지응,이행철,신증수 대한마취과학회 1998 Korean Journal of Anesthesiology Vol.34 No.6
Background: Bilateral interruption of the upper thoracic sympathetic chain at T2 level represents a selective cure for essential hyperhidrosis. Following the surgical sympathectomy, significant changes in pulmonary function has been observed. Our hypothesis was that thoracic sympathectomy may increase airway resistance during mechanical ventilation and which may be attenuated by the anticholinergics. Methods: 21 patients with essential hyperhidrosis in ASA physical status class 1 under going thoracoscopic sympathectomy, they were randomizely divided into two groups: glycopyrrolate premedication group(n=13) and non-premedication, control group(n=9). Glycopyrrolate 0.2 mg was administered 30 minutes before the induction of anesthesia. Blood pressure, heart rate, peak airway pressure, plateau pressure were measured at before and immediate after sympathectomy. Respiratory compliance and resistance were calculated. Results : After thoracoscopic sympathectomy, there was significant increase in mean peak airway pressure(15 3 vs 18 3 cmH2O, P<0.05) and decrease in respiratory compliance(52 12 vs 45 10 ml/cmH2O, P<0.05) compared to baseline. However there was no significant difference between glycopyrolate premedication group and non-premedication group. Conclusion : Thoracoscopic upper dorsal sympathectomy in patients with essential hyperhidrosis causes increase peak airway pressure and decrease the compliance of respiratory system during mechanical ventilation. (Korean J Anesthesiol 1998; 34: 1227∼1231)
남순호,안은경,배선준,조범준,이행철 대한마취과학회 1998 Korean Journal of Anesthesiology Vol.35 No.1
Background : Opioids can produce potent antinociceptive effects by interacting with local opioid receptors in inflamed peripheral tissue. However, reports on pain relief with intra-articular morphine after arthroscopic knee operations are conflicting. In this study we examined the analgesic effects of the intraarticular administration of morphine after knee surgery. Methods : In a double-blind, randomized trial, we studied 26 patients who had received one of two injections at the end of surgery. The patients in group M(n=11) received 3 mg of morphine intraarticularly; those in group P(n=15), saline 20 ml intraarticularly as a placebo. Results : Patients in the morphine group had significantly lower pain scores throughout the 24-h postoperative period compared with those in the placebo group(P<0.05). There was less requirement for supplementary analgesics in the morphine group. Conclusions : Low doses of intraarticular morphine can significantly reduce pain after knee surgery without any systemic side effect (Korean J Anesthesiol 1998; 35: 120∼124)
구민우,남용택,배선준,이행철 대한마취과학회 1998 Korean Journal of Anesthesiology Vol.35 No.5
Heart transplantation is an accepted procedure for treatment of end-staged cardiac failure. A return to near-normal quality on life can be expected in many patients with a nonrejecting cardiac allograft, and many of these patients will return to the operating room for noncardiac surgical procedures. Anesthesiologists should be alert to recognizing problems caused by the presence of infection in immunosuppressed patients, modes of presentation of rejection phenomena and how transplanted organs, notably significantly denervated ones, may behave and respond under the pathophysiologic circumstance that arise during surgery, resuscitation and intensive care. The use of regional techniques require adequate preloading to avoid exaggerated hypotension and aseptic technique to avoid infection. Hypobaric spinal anesthesia has some benefit. It does not depress cardiovascular and respiratory system and keep adequate venous return by trendelenberg position. We report herein a case of successfully undergone total hip replacement in a patient who had previously undergone orthotopic heart transplantation under hypobaric spinal anesthesia. (Korean J Anesthesiol 1998; 35: 999∼1002)