국립재활병원 낮병원 프로그램의 평가

박시운 大韓再活醫學會 2000 Annals of Rehabilitation Medicine Vol.24 No.5

전인 건강의 신학적 기초와 실제적 적용

박시운, 황대우 고신대학교보건과학연구소 2020 보건과학연구소보 Vol.28 No.-

전인 건강의 신학적 기초와 실제적 적용

모래다짐말뚝 개량폭에 따른 보강효과에 관한 연구

김시운,정길수,박병수,유남재 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A

In this research, centrifuge model experiments and numerical approach of finite element method to analyze experimental results were performed to investigate the behavior of improved ground with sand compaction piles. One of typical clay minerals, kaolinite powder, were prepared for soft ground in model tests. Jumunjin standard sand was used to sand compaction pile installed in the soft soil. In order to investigate the characteristics of mechanical behavior of sand compaction piles with low replacement ratios, centrifuge model experiments with the replacement ratio of 40%, changing the width of improved area with respect to testing results the width of surcharge loads, were carried out to obtain of bearing capacity, characteristics of load-settlement, vertical stresses acting on the sand pile and the soft soil failure mechanism in improved ground.

흰쥐에서 심정지후 Pentoxifylline이 뇌의 허혈-재관류 손상에 미치는 효과

정시경,김영민,오동렬,최경호,박승현,이운정,박규남,유은영,이원재,김세경 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Background: Two major events occurring in the cerebral hemodynamics after successful resuscitation from cardiac arrest are reactive hyperemia and postischemic hypoperfusion. In this study, we examined the effect of Pentoxifylline(PTX) on the rat brain following cardiac arrest. Methods: Fourteen rats were anesthetized and artificially ventilated. Cardiac arrest was produced by chest compression and clamping of tracheal tube for 3 minutes in ketamine anesthetized rats. Circulation was restored by standard cardiopulmonary resuscitation methods. In 7 rats, PTX 10mg/kg was infused at 10min after cardiac arrest(PTX group). In the other 7 rats, same amount of normal saline was infused(control group). Results: In both groups, hemodynamic variables, neurologic deficit(ND) score and histopathologic findings of hippocampal CA1 neurons were observed. Hemodynamic variables and ND score were not significantly different between two groups. Delayed ischemic neurons of hippocampal CA1 were decreased in PTX group(2.2±2.4%) compared with control group(9.1±1.2%). Conclusions: We conclude that PTX prevented development of delayed ischemic neurons in hippocampal CA1 after cardiac arrest. PTX may be useful in emergency situations following cardiac arrest.

응급의료센터의 단기입원치료실 활용경험

최승필,박승현,정시경,박규남,김영민,김세경,이운정,이환 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Overcrowding of emergency department is a serious and growing problem at St. Mary's Hospital. This has motivated the development of short-stay unit(SSU) as an alternative ward to routine hospital admission and ED discharge. In our hospital a SSU begun to admit patients in January 6, 1997. The SSU received 247 patients from the ED during the eight month interval(January 6, 1997 to August 31, 1997). To examine the utilization of the SSU in ED, we retrospectively analyzed 247 patients admitted in SSU from the ED, and compared the average hours per patient with acute gastroenteritis spent in the ED during the 2-month intervals before(July-August 1996) and after(July-August 1997) the establishment of the SSU. The following results were obtained; 1. The total patients consist of EM 92(37.2%), GS 48(19.4%), IM 24(9.7%), PS 21(8.5%), OS 20(8.1%), OBGY 14(5.7%) and others 28(11.3%) 2. The results of EM patients admitted in SSU from ED 1) Sex ratio of male to female was 1:1.1 and the mean age was 37.3±16years 2) In diagnosis, acute gastroenteritis was 29 cases(31.5%), multiple contusion 14 cases(15.2%), drug intoxication 12 cases(13%), limb laceration 6 cases(6.5%), tendon rupture of hand 6 cases(6.5%), and others 19 cases(20.6). 3) Mean length of stay in ED was 9.18 hours. 4) Among 92 patients to the SSU, 79 patients(85.9%) were discharged, 11 patients(11.9%) formally admitted to hospital and 2 patients(2.2%) transferred to otherhospital. The mean hospital stay time of the patients admitted to SSU was 2.6 days. 3. There was a significant reduction in the average stay time spent in the ED by treat-and-releasing patients with acute gastroenteritis after the establishment of the SSU(from 14.65±9.6 to 7.52±5.4 hr/patient, p<0.001). Conclusively, the establishment of the SSU can shorten the average stay time that treat-and-releasing patients spend in the ED, and reduce the number of admitted patients waiting in the ED.

응급센터에서 기관내 삽관을 시행하지 않은 호흡곤란 환자의 동맥혈 이산화탄소분압과 호기말 이산화탄소분압의 연관성분석

김형국,박승현,오동렬,박규남,이원재,황두영,최승필,이운정,정시경,김세경 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

Background: The end-tidal carbon dioxide tension(ETCO₂) is defined as a partial pressure of carbon dioxide at the end of an exhaled breath. The purpose of this study is to determine the correlation between ETCO₂and arterial carbon dioxide tension(PaO₂) in nonintubated patients with respiratory distress in emergency department(ED). Methods: A prospective non-blind study was performed in ED of our university hospitals. Participants included all nonintubated adult patients with respiratory distress requiring arterial blood gas analysis. ETCO₂was measured with a capnography monitor during tidal volume breathing. ETCO₂were recoreded at the time of arterial blood gas sampling. The correlation between ETCO₂and PaCO₂was analyzed in all patients and in subgroups by simple linear regression. Results: Sixty patients were enrolled. In all patients, ETCO₂was 5.72mmHg lower than PaCO₂and correlated well with PaCO₂(r²=0.716). ETCO₂correlated best with PaCO₂in patients who were either acidotic or non-smoking. Conclusion: ETCO₂correlate well with PaCO₂in nonintubated patients with respiratory distress in ED. ETCO₂may be sufficient to reflect PaCO₂in selected patients and obviate the need for repeat arterial blood gas determination.

폐부종과 심정지가 발생한 페노바비탈 중독환자

오동렬,이운정,박규남,김세경,김영민,이환,유은영,최경호,정시경 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Phenobarbital is a long-acting barbiturate causing generalized depression of neuronal activity in the brain. Its effect is primarily achieved through enhanced GABA-mediated synaptic inhibition. Its use as an antiepileptic agent was first described in 1912. Before the introduction of phenytoin, phenobarbital is used as sedative-hypnotics. It is used for the treatment of epilepsy and status epilepticus. All barbiturates, including phenobarbital, have a high potential for abuse. They were frequently used for suicide attempts in the past, but they have in large part been replaced by benzodiazepines. The onset of symptoms depends on the drug and the route of administration. Mild to moderate barbiturate intoxication resembles ethanol inebriation with slurred speech, ataxia, and lethargy. Severe acute barbiturate intoxication is life threatening. Early deaths are generally cardiovascular-related. Hypotension, shock, pulmonary edema, and cardiac arrest that occurs with large doses are caused by depression of central sympathetic tone and as well as by direct depression of cardiac contractility. The potentially fatal oral dose of phenobarbital is 6-10g. We describe an 23-year-old woman with pulmonary edema, and cardiac arrest ingestion of 18grams of phenobarbital. She was completely recovered by successful cardiopulmonary resuscitation and homoperfusion. We report a case with literature review.

Augmentative and Alternative Communication Training Using Eye Blink Switch for Locked-in Syndrome Patient

Si-Woon Park,You-lim Yim,Sook-hee Yi,Hyun-young Kim,Seung-min Jung 대한재활의학회 2012 Annals of Rehabilitation Medicine Vol.36 No.2

Locked-in Syndrome is a severe pontine stroke causing quadriplegia, lower cranial nerve paralysis, and mutism with preservation of only vertical gaze and upper eyelid movement in a conscious patient. We present a case of a Locked-in Syndrome patient who received communication training with augmentative and alternative communication equipment by using eye blinks. After 3 weeks of training, the patient was able to make an attempt to interact with other people, and associate a new word by Korean alphabet selection. Augmentative and alternative communication equipment which uses eye blinks might be considered to be benefi cial in improving the communication skills of locked-in syndrome patients.

다기준 결정모형을 이용한 최적 점검주기 분석연구

박민재(Minjae Park),김대경(Dae-Kyung Kim),김종운(Jong-Woon Kim),박동호(Dong Ho Park),박병노(Byoung-Noh Park),박종훈(Jong Hun Park),송미옥(Mi-Ok Song),성시일(Si-Il Sung),정기문(Ki Mun Jung),임재학(Jae-Hak Lim) 한국신뢰성학회 2021 신뢰성응용연구 Vol.21 No.3

Purpose: We developed a multicriteria decision model to assist decision-makers in determining the optimal inspection intervals based on a set of competing criteria, such as cost, downtime, and availability. Methods: A procedure based on multiattribute utility theory is proposed for developing the model. The proposed approach can simultaneously determine the optimal inspection intervals for monitoring the failure behavior of systems trails to be inspected, maintainability features, and decision-maker preferences for cost, downtime, and availability. Results: We determined the optimal inspection intervals for periodic condition monitoring based on delay time analysis and a multicriteria framework. Conclusion: We developed a multicriteria decision model that includes cost, downtime, and availability for consequences that have multiple dimensions to be considered.

구상흑연주철의 기지조직에 미치는 규소의 영향

김수영,남태운,박윤우,최시경 대한금속재료학회(대한금속학회) 1978 대한금속·재료학회지 Vol.16 No.1

球狀黑鉛鑄鐵을 製造할 때 珪素의 影響은 本 鑄鐵의 性質을 左右하는데 매우 重要하다. 따라서 珪素의 基地組織에 미치는 定性的인 硏究는 있으나 이것의 定量的인 硏究는 거의 없다. 本 硏究에서는 炭素量을 一定하게 하고 珪素의 영향을 特히 基地組織에 미치는 영향을 多角度로 檢討하여 그 定量化를 시도하였다. 本 硏究를 通하여 얻은 重要한 結論은 다음과 같다. 1. Pearlite量은 試料의 直徑을 10, 20, 30㎜φ로 變化시켰을때 각 試片의 珪素量이 0.1% 增加함에 따라서 亞共晶區域에서는 4.0%, 過共晶區域에서는 1.8%정도 減少한다. 2. Ferrite量은 試料의 直徑이 10, 20, 30㎜φ로 變化할때 珪素 0.1% 增加함에 따라서 亞共晶區域과 過共晶區域에서 各各 4.3%, 1.6% 정도 증가 한다. 3. 基地組織에 미치는 영향은 珪素量의 영향이 冷却速度의 영향보다 크다. The effects of silicon and cooling velocity on the matrix structure of spheroidal graphite cast iron have been studied. In the preparation of spheroidal graphite cast iron, Fe-Si-Mg and Fe-Si alloys were used as additive and inoculant respectively. The important results obtained in this study are as follows. (1) As the silicon content is increased by 0.1% in samples with diameter of 10, 20 and 30mm, the amount of pearlite decreases by 4% in hypo-eutectic region but by 1.8% in hyper-eutectic region. (2) However, the amount of ferrite is increased by 4.3% in hypo-eutectic but 1.6% in hyper-eutectic region per 0.1%Si addition in the same samples having various diameters such as 10, 20 and 30mm. (3) The effects of silicion content are larger than those of cooling velocity on the matrix structure.