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Diazepam-Ketamine-N2O-O2 마취가 심맥관계와 정신신경증상에 미치는 영향
진영호,박종관,임석환,송희선 대한마취과학회 1988 Korean Journal of Anesthesiology Vol.21 No.1
The authors observed the anestbetic efects of an intravenous drip of ketamine hydrochloride supplemented with diazepam and nitrous oxide on the cardiovascular system and the psychotomimetic reaction in 38 relarively healthy patients who underwent abdominal surgery at Chonbuk National University Hospital from May to Sept., 1985. The results were compared with those obtained from patients anesthetized with halothanenitrous oxide-oxygen. 1) The rate of intravenous drip of ketamine was 1 mg/kg/hr, which adequately maintained the level of surgical anesthesia. The total amount of pancuronium required for satisfactory skeletal muscle relaxtion was 40% more in the ketamin group than in the halothane group. 2) Following ketamine anesthesia, systolic pressure revealed a transient increase immdeiately after induction and about 4 minutes after the commencement of surgery it thereafter returned to the preinduction level and remained stable during the operation this is in contrast with halothane anesthesia in which the systolic pressure decreased and remained below the level of preinduction after a transient increase immediately after induction. 3) The difference in diastolic "pressure between ketamine and halothane anesthesia was aignificant(p<0.05) as the pressure increased and remained at a high level in the ketamine group while it decreased to the preinduction level following a transient increase after induction in the halothane group. 4) pulse rate exhibited a greater increase in the ketamine group than in the halothane group after induction, but there was no statistical significance betwn the two groups(p>0.05). 5) Contrary to halothane anesthesia, anticholinergic premedication could not completely prevent endotracheal secretion followint ketamine anesthesia. 6) Premedication with diazepam could not completely relieve psychotomimetic reactions including convulsion and hallucination after ketamine anesthesia.
진영호 대한마취과학회 1995 Korean Journal of Anesthesiology Vol.28 No.3
Trachobronchial aspiration of foreign bodies is one cause of fatal accidents in children. Serious complications and death of these children is avoided by early diagnosis and early removal of foreign bodies. The purpose of this report is to analyze the alteration of anesthetic method for removal of tracheobronchial foreign bodies in 54 children(62 anesthesia) experienced in St. Mary's Hospital, Catholic Medical College, Seoul, Korea, from Jan. 1, 1963 to Sep. 30, 1980. The removal of tracheobronchial foreign bodies for all cases was done under general anesthesia. Results were as follows: 1) Most tracheobronchial foreign bodies appeared in the 1~3 year old group(24 cases among 54 children). 2) The kinds of foreign bodies were foods and metals. Most were peanuts and beans, which were not visible on chest X-ray films. These foregn bodies can cause atelectasis and emphysema in 24 hours, which was evidenced by chest X-ray. 3) During bronchoscopy, the chest was compressed manually after mask ventilation. Recently 100% oxygen was inhaled through a thin plastic catheter allowed safe anesthesia for bronchoscopic procedure. 4) Anesthetic time required for bronchoscopic procedure was 31~60 minutes on the average. 5) Pulse rate was increased in 33 cases during bronchoscopic procedure.
진영호,신현주,안혜정,장봉근,박나현,홍종기 대한화학회 2016 Bulletin of the Korean Chemical Society Vol.37 No.10
Anthocyanins (ACs) and flavonoids were isolated from three different berry species (blueberry, black chokeberry, and cranberry) via high-speed counter-current chromatography (HSCCC). A total of 19 ACs and 9 flavonoids in three berry extracts were characterized using LC-ESI-MS/MS. The MS/MS spectra of ACs and flavonoids produced a commonly abundant [M-gluc]+ ion due to the easy cleavage of the glycosidic ether bond, which is directly reflected the structural information of the aglycon moiety and linked glucose. Among the identified 19 ACs, the major compounds were identified as glycosylated ACs linked with 3-O-galactose, 3-O-glucose, 3-O-arabinoside, and 3-O-xylose. Three ACs and four flavonoids were the first time observed in three berry extracts. Particularly for the black chokeberry extract, the total amounts of ACs were 10-fold higher than other two berry extracts. LC-MS/MS combined with HSCCC will be alternative technique for identifying new ACs and for the quality evaluation of ACs in colored fruits.
진영호,박수용,송용만 한국원자력학회 2009 Nuclear Engineering and Technology Vol.41 No.1
A steam generator tube rupture (SGTR) accident, which is a partial reactor building bypass scenario, has a low probability and high consequences. SAMG has been used to manage the progression of severe accidents and the release of fission products induced by an SGTR at the Wolsong plants. Four of the six SAGs in the SAMG are used to manage the progression of a severe accident induced by an SGTR at the Wolsong plants. The results of the ISAAC code calculation have shown that the proper use the SAMG can stop a severe accident from progressing and keep the reactor building intact during a severe accident. These results confirm that the SAMG is an effective means of managing the progression of severe accidents initiated by an SGTR at the Wolsong plants.
X-ray Diffraction Analysis of Residual Stress in Laminated Ceramic
진영호,정동윤 한국세라믹학회 2011 한국세라믹학회지 Vol.48 No.5
The strength of ceramic was improved by lamination by suppressing the propagation of cracks with compressive residual stress in the face layer of the laminate. Hot pressed SiAlON+SiC/SiC/SiAlON+SiC laminate discs were fabricated for tailored residual stress. The residual stress in this laminate was studied by X-ray diffraction (XRD). There was considerable compressive residual stress in the face layer. A Finite Element Analysis (FEA) was performed to support the measured XRD results and to determine the stress field in the laminate. The residual stress measured by XRD had satisfactory agreement with the analytically calculated and FEA values. The measured value by XRD was −385 ± 20 MPa over most of the face layer. The calculated and FEA values were −386 MPa and −371MPa, respectively. FEA also showed significantly modified stresses and the maximum tensile stress near the edge region which are possible crack generators in the presence of flaws or contact damage.