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任孝宰,鄭德秀,李錫鎬 湖西大學校工業技術硏究所 1999 工業技術硏究所論文集 Vol.18 No.-
This work was conducted to study the distribution of velocity field in the inlet region of evaporator for automobile HVAC(Heating, Ventilation, and Air Conditioning). By experimental and numerical simulation method, we found out that the installation position of evaporator in cool air blowing system had optimal value. Also, the porous media assumption of evaporator in computational domain assured to valid when compared with experimental results. Finally, the diffusing scroll which proved to be very efficient and silent by experimentally.
소아에서 Fogarty 카테터를 이용한 일측폐 환기 마취 경험
유수봉,강효석,임지훈,김두식,류시정 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3
Thoracic surgery may be greatly facilitated by causing selective atelectasis of the lung being operated on (one-lung ventilation anesthesia). But the tube used for one-lung ventilation is greater outer diameter than conventional endotracheal tube when compare to each other with same inner diameter, so in some young children it is impossible to one-lung ventilation using double lumen tube or bronchial blocker tube because of narrow vocal cord. We performed one lung ventilation anesthesia using conventional endotracheal tube and Fogarty catheter as a bronchial blocker in 11-year old women who received lung biopsy surgery and left lower lobectomy.
ICR계 마우스에서 홍화씨 에탄올 추출물의 급성독성시험
황윤환,박병권,임종환,김명석,송인배,명노일,정상일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1
The present study was carried out to investigate the potential acute toxicity of safflower seed by a single oral dose in ICR mice. Twenty animals of each sex were randomly assigned to four groups of 5 rats each and were administered singly by gavage at dose levels of 0, and 2,500 mg/kg bodyweight. Mortalities, clinical findings, and body weight changes were found and complete gross postmortem examinations were performed. Throughout the study period, no treatment-related deaths were observed. There were no adverse effects in clinical signs, body weight, and gross findings at any dose tested. The results showed that the single oral administration of safflower seed did not cause any toxic effect at the dose levels of 2,500 mg/kg in rats and the minimal lethal dose was considered to be over 2,500 mg/kg body weight for both sexes.
A Management Plan for Mercury-containing Waste
Jong Seok Park,Kyoung Hoon Rhee,Byoung Seok Moon,Hyo Beom Lee,Bae Seok Lim 위기관리 이론과 실천 2017 Crisisonomy Vol.13 No.10
수은은 매우 독특한 특성을 가지고 있어 산업현장에서 매우 다양하게 사용되며, 대기, 토양 및 수생환경으로 배출 될 시 독성이 사라지지 않고 생물 내에서 계속 축적되어 먹이사슬의 최상위 포식자인 인간에게 섭취되게 된다. 우리나라는 OECD 회원국 중 9번째로 수은 배출량이 높으며, 대부분의 수은폐기물은 다른 폐기물들과 함께 섞여 개발된 공간(수은을 폐기하기 위한 적재 공간)에 폐기되거나, 소각하는 등의 방법으로 처리하고 있어 친환경적이지 못하다. 이에 본 연구는 수은폐기물의 친환경적 관리를 위하여 수은폐기물의 분류방법과 관리방안을 제시하고자 하였으며, 연구결과 다음과 같은 결론을 얻었을 수 있다. 수은정제과정에서 오염물질에 의한 피해가 발생하지 않도록 관리·감독 기준을 강화해야 한다. 그리고 수은폐기물의 저장 용량을 충분히 확충하여 사용하지 않은 수은을 저장하고 환경오염 우려가 없는 재사용 비율을 높여야 한다. Mercury has very peculiar property and can be used in a variety of way at industrial sites. Even when emitting to air, soil, and aquatic environment, its toxiccomponents never disappear. It continues to cumulate inside living things and ends up being taken by apex predators, humans. Most of the mercury-containing waste are being thrown out or incinerated at the developed space with other wastes, which is not an environment- friendly way. This study suggests the method of classifying and managing mercury-containing wastes in an environment-friendly way. Results are as follows. First, supervision and management standards should be intensified to prevent damage from polluted materials during the process of purifying mercury. Second, the storage capacity of the facility handling unused mercury should be expanded and the rate of reuse should be increased to prevent pollution from mercury-containing wastes.
증례보고 : 간부전 환자에서 Midazolam의 지속적 주입 후 지연된 의식회복
강효석 ( Hyo Seok Kang ),임종오 ( Jong Oh Lim ),박소진 ( So Jin Park ),최수경 ( Soo Kyeong Choi ),박혜진 ( Hae Jin Park ),임태하 ( Tae Ha Lim ) 대한마취과학회 2006 Korean Journal of Anesthesiology Vol.51 No.3
Benzodiazepines are frequently administered for sedation to surgical intensive care unit patients who require postoperative intubation and mechanical ventilation. Midazolam is the most commonly used drug, which is water soluble, short-acting benzodiazepine and rapidly metabolized by the liver. Continuous intravenous infusion of midazolam was administered to the man who was 40 years old for mechanical ventilation in the intensive care unit for 58 hours. After discontinued midazolam, patient who had acute hepatic dysfunction had been sedated with endotracheal intubation for 5 days. Even flumazenil was tried twice to reverse the effect of midazolam, the response was limited by the time. Finally he awaked as recovery of his hepatic function. (Korean J Anesthesiol 2006; 51: 363~6)
( Hyo Seok Na ),( Sang Bum An ),( Hee Pyoung Park ),( Young Jin Lim ),( Jung Won Hwang ),( Young Tae Jeon ),( Seong Won Min ) 대한마취과학회 2011 Korean Journal of Anesthesiology Vol.60 No.1
Background: This randomized controlled study evaluated the efficacy of intravenous patient-controlled analgesia (IV-PCA) with fentanyl and ketorolac for neurosurgical patients, and compared the effectiveness of IV-PCA with intermittent analgesics injection. Methods: The patients undergoing craniotomy were randomly assigned to two groups. Patients of group P (n = 53) received fentanyl (0.2 μg/kg/hr) and ketorolac (0.3 mg/kg/hr) via IV-PCA, and those of group N (n = 53) received intermittent fentanyl or ketorolac injection as needed. Pain was evaluated using a 0-10 visual analogue scale (VAS) at postoperative 1, 4, and 24 hr. The amount of infused analgesic drugs, Glasgow Coma Scale (GCS) score, systolic arterial pressure, heart rate, respiratory rate, and the incidence of nausea and miosis were measured at the same time points. Results: Although VAS of pain (VASp) was comparable at postoperative 1 hr (P = 0.168) between the two groups, the group P had significantly lower VASp at postoperative 4 hr (P = 0.007) and 24 hr (P = 0.017). In group P, less analgesic drugs were administered at postoperative 1 hr, and more analgesic drugs were administered at postoperative 24 hr. There were no differences between two groups with respect to nausea, GCS, systolic arterial pressure, and heart rate. IV-PCA did not further incur respiratory depression or miosis. Conclusions: IV-PCA with fentanyl and ketorolac after craniotomy is more effective analgesic technique, without adverse events, than the intermittent administration of analgesics. (Korean J Anesthesiol 2011; 60: 30-35)
Lim Jong-Hwan,Kim Myoung-Seok,Park Byung-Kwon,Hwang Youn-Hwan,Hwang Mi-Hyun,Park Seung-Chun,Yun Hyo-In Korean Society of ToxicologyKorea Environmental Mu 2005 Toxicological Research Vol.21 No.4
The aim of the present study was to evaluate systemic bioavailability of surfactin and to determine its pharmacokinetic profiles. The stability of surfactin to pH, temperature and protease was evaluated. Surfactin was resistant to high temperature, a wide range of pH and the action of hydrolytic enzymes. The pharmacokinetic natures of surfactin which were shown the short half-life, rapid clearance and poor bioavailability. The results of study should provide preliminary data of surfactin for further dose-finding studies and for the design of application forms. It is also be important to a context of the safety of surfactin.