http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유리-PZT 혼합 후막의 절연 파괴 전압 및 에너지 저장 효율 향상
김삼정,임지호,정대용,Kim, Samjeong,Lim, Ji-Ho,Jeong, Dae-Yong 한국재료학회 2021 한국재료학회지 Vol.31 No.10
To improve ferroelectric properties of PZT, many studies have attempted to fabricate dense PZT films. The AD process has an advantage for forming dense ceramic films at room temperature without any additional heat treatment in low vacuum. Thick films coated by AD have a higher dielectric breakdown strength due to their higher density than those coated using conventional methods. To improve the breakdown strength, glass (SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-Y<sub>2</sub>O<sub>3</sub>, SAY) is mixed with PZT powder at various volume ratios (PZT-xSAY, x = 0, 5, 10 vol%) and coating films are produced on silicon wafers by AD method. Depending on the ratio of PZT to glass, dielectric breakdown strength and energy storage efficiency characteristics change. Mechanical impact in the AD process makes the SAY glass more viscous and fills the film densely. Compared to pure PZT film, PZT-SAY film shows an 87.5 % increase in breakdown strength and a 35.3 % increase in energy storage efficiency.
김삼정(Sam Jeoung Kim),박광재(Kwang Jae Park),이종수(Jong Soo Lee),양원석(Won Seok Yang),이상구(Sang Koo Lee),한덕종(Duck Jong Han),박정식(Jeong Sik Park),박수길(Su Kil Park) 대한내과학회 1997 대한내과학회지 Vol.53 No.4
N/A Background: Kidney transplantation from cadaveric donor is increasing in KOREA. Knowledge of donor factors that can influence early graft function should be an important guideline in determining the suitability of a donor kidney for transplantation. Method: From June 1989 to August 1995, sixty patients with end-stage renal disease underwent kidney transplantation from thirty-two cadaver donors in Asan Medical Center. In this study, we reviewed the clinical characteristics of the cadaver donors including vital sign, urine output, serum creatinine, amounts of vasopressor needed, as well as the cause of brain death and evaluated the effect of these parameters on the early post-transplantation graft function (up to 6 months). Results: The data are given as median (range). The donors had been admitted for 40 hours (12-177) before nephrectomy. During admission, the lowest systolic blood pressure was 85mmHg (60-130). Platelet count was 112×10³/L (11-270×10³). Hour urine output was 447ml/h (212-937). These parameters did not have significant effects on the early post-transplantation graft function of our patients. Fifteen of thirty two donors had peak serum creatinine higher than 1.4mg/dl (mean 1.9㎎/dl, range 1.5-3.6㎎/dl) with serum creatinine 1.5㎎/dl (1.5-2.0) at the time of nephrectomy. The declining tendency and lowest level of serum creatinine after renal transplantation in patients who received kidneys from donor with peak serum creatinine higher than 1.4㎎/dl was not different from those in patients who received kidney with normal function. Conclusion: The transient hypotension or acute reversible mild to moderate deterioration of renal function in cadaver donor does not seem to have significant effect on the early post-transplantation graft function if underlying organic renal disease could be ruled out by careful history taking and clinical evaluation.
新生國에 對한 指導權의 考察 : 知識人들의 政治的 非西歐世界
金三正 全北大學校 法政大學 法政學會 1965 法政學報 Vol.1 No.-
과거 수세기 동안에 비서구세계는 아시아 아프리카의 일반사회에 전통적으로 끼친 서구문명은 혁명적인 변동을 체험하였다. 또한 서구의 정치적 지배를 벗어남에 따라 최근에는 새로운 정치적 민족적인 실체를 이루면서 전개되고 있다. 이러한 상황에서 많은 비서구국가에서는 새로운 Political elite가 권력을 잡게 되었고 신지배집단으로 유형을 분류하게 되었다.
혈액투석 및 지속성 외래 복막 투석 환자의 혈청 Lipoprotein(a) 농도 : Apolipoprotein(a) 표현형에 따른 비교
이상구,박광재,서장원,정영옥,유혜승,유교상,김삼정 대한신장학회 1996 Kidney Research and Clinical Practice Vol.15 No.4
Cardiovascular disease is one of the most important causes of death in patients on renal replacement therapy. Serum level of lipoprotein(a)[Lp(a)], an independent risk factor for atherosclerotic cardiovascular disease, is determined mainly by the gene locus in the general population, but is known to be elevated in patients with end-stage renal disease. This study was performed to evaluate the effect of dialysis modality on serum Lp(a) concentration. We measured fasting serum Lp(a) and apolipoprotein(a) [Apo(a)] phenotype in 82 continuous ambulatory peritoneal dialysis[CAPD] patients, 99 hemodialysis [HD] patients and 153 normal subjects. CAPD patients[median 62.7mg/dL, interquartile rangel; 28.2-90.3 mg/dL] had higher serum Lp(a) level than HD patients[18.7mg/dL, 9.5-35.4mg/dL] or normal subjects [5.3mg/dL, 1.0-18.7mg/dL](p$lt;0.0001). The Apo (a) phenotype of the whole subjects consisted mainly of S4, S4S5, S5 and S5S5 isoforms. For the S4, serum Lp(a) of CAPD patients [n=8; 64.9mg/dL, 37.6-90.7 mg/dL] was significantly higher than that of HD patients [n=15; 18.6mg/dL, 5.7-31.4mg/dLI or normal subjects[n=18; 3.0mg/dL, 1-17.1mg/dL](p$lt;0.05). For the S4S5, serum Lp(a) of CAPD patients[n=15; 89.8 mg/dL, 83.9-113.6mg/dL] was significantly higher than that of HD patients [n=14; 27.9mg/dL, 14.5-38.9mg/ dL] or normal subjects [n=27; 11.4mg/dL, 3.6-25.9mg/ dL](p$lt;0.005). For the S5, serum Lp(a) of CAPD patients[n=34; 35.5mg/dL, 13.3-63.6mg/dL] was significantly higher than that of HD patients[n=27; 12.1mg/ dL, 1.5-21.3mg/dL] or normal subjects[n=56; 2.9mg/ dL, 1-6.7mg/dL(p$lt;0.001). For the SSS5, serum Lp(a) of CAPD patients[n=9; 69,0mg/dL, 47.9-88.4mg/dLJ was significantly higher than that of HD patients [n=17; 12.5mg/dL, 7.3-28.4 mg/dL) or normal subjects [n=23; 10.1mg/dL, 1.1-13.0 mg/dL](p$lt;0.001). These findings indicate that serum Lp(a) is elevated in CAPD patients as compared with HD patients for all common Apo(a) phenotypes, suggesting that CAPD modality is associated with greater elevation of serum Lp(a) which may contribute to their frequent cardiovascular mortality in CAPD patients.
김명환,이성구,서동완,유병무,민영일,이근찬,정훈용,장윤혜,정성애,명승재,이미화,방혜승,김삼정 대한소화기내시경학회 1996 Clinical Endoscopy Vol.16 No.4
We evaluated the clinical characteristics of patients with SO dyskinesia(n=16) who were confirmed by ERCP manometry during past 5 years. They were 14 male and 2 female and mean age was 52-year-old(range, 32-75). According to the criteria suggested by Hogan and Geenen, 13 patients were classified into biliary type and 3 patients into pancreatic type. Among the patients with biliary type(n=13), 12 patients fulfilled the criteria for group II dysfunction of SO and 1 patient for group III. Among the patients with pancreatic type(n=3), all fulfilled the criteria for group II. The manometric abnormalities were increased basal pressure(n=4), tachyoddia(n=7), increased retrograde propagation(n=3), tachyoddia and increased retrograde propagation(n=l), and tachyoddia and increased basal pressure(n=l). As treatment, 12 patients received conventional endoscopic sphincterotomy and 3 patients received endoscopic pancreatic sphincterotomy in addition to conventional endoscopic sphincterotomy. Satisfactory results (complete absence or marked reduction of pain) were obtained in 13(87%) out of 15 patients by endoscopic treatment. In conclusion, SO dyskinesia is not so common disease and the detection of patients with SO dyskinesia may increase by frequent application of ERCP manometry.