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이은진,김태선,Lee, Eun-Jin,Kim, Tae-Seon 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.11
In this paper, Plasma Enhanced Chemical Vapor Deposition (PECVD) $SiO_2$ film properties are modeled using statistical analysis and neural networks. For systemic analysis, Box-Behnken's 3 factor design of experiments (DOE) with response surface method are used. For characterization, deposited film thickness and film stress are considered as film properties and three process input factors including plasma RF power, flow rate of $N_2O$ gas, and flow rate of 5% $SiH_4$ gas contained at $N_2$ gas are considered for modeling. For film thickness characterization, regression based model showed only 0.71% of root mean squared (RMS) error. Also, for film stress model case, both regression model and neural prediction model showed acceptable RMS error. For sensitivity analysis, compare to conventional fixed mid point based analysis, proposed sensitivity analysis for entire range of interest support more process information to optimize process recipes to satisfy specific film characteristic requirements.
짧은 블록 길이를 갖는 터보부호의 BER 상한값 성능 평가
이은진,김용,이필중,Lee, Eun-Jin,Kim, Young,Lee, Pil-Joong 한국통신학회 2001 韓國通信學會論文誌 Vol.26 No.9
부호화 시스템의 성능 분석은 일반적으로 BER(Bit Error Rate)을 이용하여 이루어지는데, 많은 시간을 요하는 정확한 BER을 구하는 대신 근사치인 상한값(upper bound)을 이용하는 경우도 많다. 그러므로 실제 값과 가까운 BER 상한값을 구하는 것은 중요한 일이다. 터보부호의 경우 테일 비트(tail bit)에 의한 영향이 무시되는 블록 길이가 긴 경우[1]에 BER 상한값이 보고되었다. 그러나 테일 달기(tail terminating) 기법을 사용하면서 블록 길이가 짧을 경우 추가되는 테일 비트가 BER 상한값에 미치는 영향은 무시할 수 없게 된다. 따라서 본 논문에서는 테일비트를 고려한 터보부호의 BER 상한값 계산 방법을 제시한다. 그리고 테일 달기 기법보다 복잡하지만 테일 비트가 없으므로 블록 길이가 짧은 경우 효율적으로 사용될 수 있는 테일 물기(tail-biting) 기법을 이용하느 터보부호의 BER 상한값 계산 방법도 제시한다.
Clinical Characteristics of Patients with Taste Disorders
이은진,박원규,남진우,윤종일,고홍섭,Lee, Eun-Jin,Park, Won-Kyu,Nam, Jin-Woo,Yun, Jong-Il,Kho, Hong-Seop Korean Academy of Orofacial Pain and Oral Medicine 2009 Journal of Oral Medicine and Pain Vol.34 No.4
There is tremendous variability in the ways patients present with taste problems. Because of complex and multifactorial etiological background, it is not simple to evaluate patients with taste disorders. Accurate assessment of patients' status by prudent, thorough history taking and symptom analysis is the most essential for exact diagnosis of taste disorders. The aim of this study was to investigate the clinical characteristics of patients with taste problems as a primary complaint. Consecutive series of 50 patients (12 males and 38 females, mean age $53.6\;{\pm}\;14.7$ years) were included for the present study. All subjects were requested to complete a comprehensive questionnaire. Clinical evaluation procedures included oral examination, interview, questionnaire analysis, panoramic radiography, blood test and measurement of salivary flow rate. The obtained results were as follows: 1. Among the patients, 36 patients (72%) complained of oral mucosal pain or burning sensation. Of these patients, 18 patients (36%) were diagnosed as burning mouth syndrome. 2. Nineteen patients (38%) complained of subjective oral dryness. The flow rate of unstimulated whole saliva was less than 0.1 mL/min in 14 patients (28%) and 17 (34%) had a stimulated whole salivary flow rate of less than 0.5 mL/min. 3. Among the types of taste disorders, hypogeusia, the most frequently reported, was found in 25 patients (50%), dysgeusia in 18 patients (36%), phantogeusia in 15 patients (30%), hypergeusia in 10 patients (20%), and ageusia in 5 patients (10%). Nineteen patients (38%) reported more than one type of taste disorder and the most frequent combination was dysgeusia + hypogeusia (n=6, 12%). 4. Based on data from the medical and dental histories and examinations, the patients were assigned to 12 probable causal categories. Taste disorders due to oral mucosal diseases and idiopathic taste disorder were the most frequent (n=9; 18%, each), followed by psychogenic taste disorder (n=8; 16%), drug-induced taste disorder (n=7; 14%), and taste disorder due to dry mouth (n=6; 12%). These 5 categories of taste disorder accounted for 78% of all cases in this study.
이은진,Lee, Eun-Jin 대한출판문화협회 1999 출판저널 Vol.253 No.-
한국 사회과학이 근대적 학문으로 정립된 역사는 일천하다. 여기서 일천하다는 것은 그 역사가 짧다는 뜻이 아니라 학문이 발전될 수 있는 사회적 조건이 덜 성숙돼 있었다는 의미다. 지식인 사회가 서구 중심의 시각으로 무장하고 있는 상황, 한국의 경험적인 연구를 가능케 하는 자료의 부족, 한국인의 주체적인 문제의식의 방황(지식인 사회에서의 자기 문제에 대한 평가 부족), 연구방법에서 지나친 서구 의존은 바로 사회과학이 발전하기 어려운 상황을 증명한다. 그럼에도 불구하고 지식인 100명이, 한국인이 저술하고 한국을 연구대상으로 삼은 책을 8권 선정한 것은 이러한 사회적 조건 아래에서도 문제의식.자료.연구방법의 측면에서 높은 수준을 보여줬다는 점을 평가했을 것으로 추측된다.
이은진,Lee, Eun-Jin 대한출판문화협회 1997 출판저널 Vol.226 No.-
현실문제에 고민하는 이들은 사회학이 현실을 이해하는 데 도움을 주길 원한다. 이런 고민은 정보사회에 대한 낙관적 흐름과 생태학적 위험, 경제적 위기에 대한 비관적 흐름에 관심을 갖게 한다.
Nystatin에 반응하지 않는 만성 구강 캔디다증 증례에서 Fluconazole의 효과에 관한 보고
이은진,박원규,고홍섭,Lee, Eun-Jin,Park, Won-Kyu,Kho, Hong-Seop 대한안면통증구강내과학회 2008 Journal of Oral Medicine and Pain Vol.33 No.1
Candidiasis, an opportunistic infectious condition caused by the genus Candida, is the most common oral fungal infection in humans. The diagnosis of oral candidiasis can often be made based on recognition of its clinical pattern, but at times there is difficulty in making a clinical diagnosis because of its various manifestations. Several antifungal medications have been developed for managing fungal infections. Despite the availability of several effective antimycotics for the treatment of oral candidiasis, failure of therapy is not uncommon due to the unique environment of the oral cavity, where the flushing effect of saliva and the cleaning action of the oral musculature tend to reduce the drug concentration to sub-therapeutic levels. In this case report, we present two patients diagnosed with chronic hyperplastic candidiasis and median rhomboid glossitis, which are known as rare forms of candidiasis. In both cases, there was a significant reduction of clinical signs and symptoms when fluconazole was prescribed after the failure of initial nystatin therapy.