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AC PDP 네 투명 유전층의 절연내력과 투과율에 관한 연구
박정후,이성현,손재봉,김규섭,조정수 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.54 No.-
AC PDP(plasma display panel)는 40인치 이상의 대화면 디스플레이 장치로서, AC PDP내 투명 유전층은 방전플라즈마중의 양이온 충격에 의해서 금속전극이 스파터되는 것을 보호하고, 유전층 표면에 벽전하를 형성하여 대화면 구동에 필요한 메모리기능을 부가하므로 방전 cell구조에서 필수적인 부분이다. 이러한 유전층은 우수한 절연내력을 가져야할 뿐 아니라 가시광을 투과시키기 위한 높은 투과율이 요구된다. 따라서 본 연구에서는 여러 조건들 하에서 유전층의 절연내력과 투과율에 관하여 논하였다. 그 결과 15μm 두께를 가지고 570℃에서 소성을 행한 유전층의 경우 최소 29V/μm의 절연 내력을 가졌고, 80%정도의 투과율을 나타내었다. 그러므로 AC PDP에서 적정유전층의 두께는 최고인 가전압에 대해서 약 80V 정도의 마진을 가지는 15μm정도가 적당하다고 생각된다. AC PDP(plasma display panel) is large display panel over 40 inch. The transparent dielectric layers in AC PDP are essential to the discharge cell structure, because they protect metal electrodes from sputtering by positive ion bombarding in discharge plasma and form a sheath of wall charges which are essential to memory function necessary to drive large panel. This layer should have high dielectric strength, and also be transparent because visiable light must pass through this layer. Therefore in this paper, we discussed the dielectric strength and transmittance coefficient of the dielectric layer under various conditions. As a result, on the 15μm thickness, the minimum dielectric strength was 29V/μm and the transmittance coefficient was about 80% after 570℃ firing process. It is considered that the resonable dielectric thickness in AC PDP is 15μm because it has about 80V margin on the maximum applied voltage.
충북지역 도시방재계획의 도시계획적 진단과 발전방향 : 도시계획서 분석 및 전문가 의견조사를 중심으로
백기영,황희연,박병호,이만형,황재훈,류을렬 永同大學校 1999 硏究論叢 Vol.5 No.1
본 연구는 도시방재계획의 현황을 도시계획적 차원에서 진단하고 그 발전방향을 도출하고자 하는 목적하에, 충청북도의 조례와 지침중 도시방재 관련 사항을 정리하며, 충청북도 지방도시계획위원회 회의록 및 관련자료를 검토하여 방계계획의 취급 수준을 파악하였다. 실제 도시계획 상황에 대한 진단은 도시계획 보고서를 대상으로 도시방재계획의 위상을 분석하고 평가하였다. 또한 도시방재계획의 위상과 관련 전문가의 인식수준을 평가하고 이를 바탕으로 향후 바람직한 도시방재계획의 위상을 설정하기 위해 필요한 사항을 분석하고자, 도시방재에 관한 일반의식 수준, 도시재해에 관한 대처방안, 도시방재계획의 평가방향 등을 중심으로 설문조사를 실시하였다. 이상과 같은 충북지역의 방재계획에 대한 도시계획적 진단을 바탕으로 도시방재계획 관리체계의 방향 도출과 도시방재계획의 향후방향 제안을 시도하였다. This paper examines the status quo of the existing urban disaster prevention plans in Chungbuk Province and suggests alternative orientations for the future application. Its methodological themes center around the systematic compilation and accountability of disaster-related ordinances, mostly hinged on evaluation of major disaster items documented in various urban master or revision plans. In addition, it recommends the concrete guidelines and contents in disaster prevention plans, both of which are based on the aggregated results of expert opinion survey in and around Chungbuk Province. In order to tackle with diverse and unpredictable disasters which are well observed in modern urban society, this paper urges that the relatively weak legal and planning standards of the existing disaster prevention plans have to be immediately revised. For instance, the paper vividly shows that the present dimension of disaster prevention plans within the existing master plans and perception of specialist are not satisfactory mainly because of the internal limitation of the existing plans. Secondly, it seems imperative for planners to pay attention to systematic operation and management, even starting from the early development stage of urban disasters. Lastly, it proposes the alternative checklists given to measure the suitability of the disaster plans.
Lee, Je-Hwan,Joo, Young-Don,Kim, Hawk,Bae, Sung Hwa,Kim, Min Kyoung,Zang, Dae Young,Lee, Jung-Lim,Lee, Gyeong Won,Lee, Jung-Hee,Park, Jae-Hoo,Kim, Dae-Young,Lee, Won-Sik,Ryoo, Hun Mo,Hyun, Myung Soo,K American Society of Hematology 2011 Blood Vol.118 No.14
<B>Abstract</B><P>We conducted a phase 3 randomized trial comparing 2 different doses of daunorubicin as induction chemotherapy in young adults (60 years of age or younger) with acute myeloid leukemia (AML). Of 383 patients who were analyzed, 189 received standard-dose daunorubicin (SD-DN, 45 mg/m2 per day times 3 days) and 194 received high-dose daunorubicin (HD-DN, 90 mg/m2 per day times 3 days) in addition to cytarabine (200 mg/m2 per day times 7 days) to induce complete remission (CR). The CR rates were 72.0% in the SD-DN arm and 82.5% in the HD-DN arm (P = .014). At a median follow-up of 52.6 months, overall (OS) and event-free (EFS) survival were higher in the HD-DN arm than in the SD-DN arm (OS, 46.8% vs 34.6%, P = .030; EFS, 40.8% vs 28.4%, P = .030). Differences in CR rate and both OS and EFS remained significant after adjusting for other variables (CR, hazard ratio [HR], 1.802, P = .024; OS, HR, 0.739, P = .032; EFS, HR, 0.774, P = .048). The survival benefits of HD-DN therapy were evident principally in patients with intermediate-risk cytogenetic features. The toxicity profiles were similar in the 2 arms. In conclusion, HD-DN improved both the CR rate and survival duration compared with SD-DN in young adults with AML. This study is registered at www.clinicaltrials.gov as #NCT00474006.</P>
Kim, Hawk,Lee, Je-Hwan,Joo, Young-Don,Bae, Sung Hwa,Hyun, Myung Soo,Lee, Jung-Hee,Kim, Dae-Young,Lee, Won-Sik,Ryoo, Hun Mo,Kim, Min Kyoung,Park, Jae-Hoo,Lee, Kyoo-Hyung Springer International 2012 Annals of hematology Vol.91 No.9
<P>Recently, a less toxic regimen comprising reduced cyclophosphamide (Cy), fludarabine, and anti-thymocyte globulin (ATG) (Cy-Flu-ATG) was used to condition high-risk patients scheduled for allogeneic hematopoietic cell transplantation (alloHSCT) instead of standard Cy-ATG in patients with severe aplastic anemia (AA). We performed a randomized phase III study to compare the regimen-related toxicities (RRTs) of two different conditioning regimens: Cy-ATG vs. Cy-Flu-ATG. Patients in the Cy-ATG arm received Cy at 200 mg/kg. Those in the Cy-Flu-ATG arm received fludarabine (Flu) at 150 mg/m(2) and Cy at 100 mg/kg. A total of 83 patients (40 in the Cy-ATG and 43 in the Cy-Flu-ATG) were enrolled. Seventy-nine patients had AA and four had MDS. All predefined RRTs were significantly lower in patients of the Cy-Flu-ATG arm (23.3 vs. 55.0 %; p = 0.003). Infection with identified causative organism and sinusoidal obstruction syndrome, hematuria, febrile episodes, and death from any cause tended to be more frequent in Cy-ATG arm but did not differ significantly between arms. There was no difference in neutrophil engraftment failure (2.5 vs. 2.33 %; p = 0.959), acute graft-versus-host disease (GvHD) (15.0 vs. 23.3 %; p = 0.388), and chronic GvHD (16.7 vs. 16.2 %; p = 0.961) between Cy-ATG and Cy-Flu-ATG arms. The 4-year survival rate did not differ between the Cy-ATG and Cy-Flu-ATG arms. Preconditioning with Cy-Flu-ATG was superior to that afforded by Cy-ATG in terms of reducing RRT levels without increasing engraftment failure.</P>
복수의 성상을 감별 진단함에 있어서 복수의 지질 , 혈청과 복수의 Albumin 농도비 , LDH 동위효소 및 복수내 Fibronectin 치의 의의
이인홍(In Hong Lee),윤인혁(In Hyuk Yoon),전재범(Je Bum Chun),함준수(Joon Soo Hahm),이종철(Jong Chul Lee),이민호(Min Ho Lee),이동후(Dong Hoo Lee),박경남(Kyung Nam Park),기춘석(Choon Suhk Kee) 대한내과학회 1992 대한내과학회지 Vol.43 No.3
N/A Background: There are many parameters available to differentiate between malignant and non-malignant acsites. We studied the diagnostic value of ascitic lipid, LDH isoenzymes, serum ascites albumin gradient ratio and fibronectin levels to differentiate between malignant & non-malignant ascites. Methods: 51patients with ascites (21cirrhosis, 2nephrotic syndrome 17, various neoplasms and 11both cirrhosis & hepatocellular carcinoma) were studied to evaluate the diagnostic value of above mentioned 4parameters. Results; 1) Above mentioned 4parameters are statistically very significantly different between malignant and non- malignant ascites than previous parameters. 2) Total ascitci LDH levels ard LDH and LDH levels are markedly high in malignant ascites than LDH and LDH levels. 3) The median and mean values of cholesterol, triglycerides, phospholipids and total lipids were significantly high in malignant specificity of ascitic cholesterol in the differentiation between malignant ascites and benign ascites were 82% and 100% respectively as a cut off value of ascites cholesterol is 42mg/dl. 4) Serum ascites albumin gradient ratio in malignant ascites (0.88±0.62) and benign ascites (4.77±1.250) showed signifacantly difference, and diagnostic sensitivity and specificity are 80% and 100% as a cut off value is less than 1.1. 5) Ascitic Fibronectin levels are significantly high in malignant ascites (116±75 mg/1) than benign ascites (32±21mg/1). Its diagnostic sensitivity-and specificity are 61% and 96% as a cut off value is over 85mg/l. Conclusion; Above 4 parameters ard statistically significant to differenciate between malignant and non- malignant ascites, especially serum ascites albumin gradient ratio and ascitic lipids levels are more valuable for the differential diagnosis of ascites.
급성전골수구성백혈병에서 PML/RARα 유전자 이형의 임상적 의의
이원식 ( Won Sik Lee ),이상민 ( Sang Min Lee ),이규형 ( Kyoo Hyung Lee ),이제환 ( Je Hwan Lee ),최성준 ( Seong Joon Choi ),이정희 ( Jung Hee Lee ),김대영 ( Dae Young Kim ),임성남 ( Sung Nam Lim ),박재후 ( Jae Hoo Park ),민영주 ( Y 대한내과학회 2008 대한내과학회지 Vol.75 No.4
Background/Aims: There are three types of PML-RARα mRNA fusion transcripts associated with acute promyelocytic leukemia (APL): the short (S)-form, the long (L)-form and the variable (V)-form. No study on the Korean population has addressed the clinical significance of the specific types of PML-RARα mRNA fusion transcripts for APL patients who receive the combination therapy of all-trans-retinoic-acid and idarubicin (AIDA regimen). Methods: We performed a retrospective analysis on 94 patients with APL to evaluate differences in the therapeutic outcomes, such as the response rate, an event-free survival (EFS), and overall survival (OS), after remission following the induction of chemotherapy. We also analyzed whether differences in the pretreatment clinical characteristics depend on the PML-RARα isoform. Results: The median age of the patients was 41 years (range 15-85). Among the 94 patients, there were 58 L-form cases (62.1%), 32 S-form cases (34.0%), and 4 V-form cases (4.3%). The CR rate following remission induction treatment was 84.9%. The CR rate was higher in patients with an initial WBC<10.0×109/L, as compared to patients with an initial WBC higher than 10.0×109/L (93.5% vs. 65.4%, p=0.001). The AIDA induction regimen was associated with a better EFS than non-AIDA induction regimens (81.9% vs. 49.6%, p=0.006). The induction group was also a significant prognostic factor for EFS in the multivariate analysis (p=0.020). There were no differences in OS and EFS in patients with either isoform L or isoform S in the AIDA induction group. Conclusions: This retrospective study demonstrated that pretreatment clinical characteristics and treatment outcomes were not significantly different among patients with varying PML-RARα isoform types in the AIDA induction group. (Korean J Med 75:412-419, 2008)
Multilocus sequence typing analysis of Shigella flexneri isolates collected in Asian countries
Choi, Seon Young,Jeon, Yoon-Seong,Lee, Je Hee,Choi, Boram,Moon, Sun Hwa,von Seidlein, Lorenz,Clemens, John D.,Dougan, Gordon,Wain, John,Yu, Jun,Lee, Je Chul,Seol, Sung Yong,Lee, Bok Kwon,Song, Jae-Hoo Microbiology Society 2007 Journal of medical microbiology Vol.56 No.11