양면동시증착 열선-CVD를 이용한 a-Si:H/c-Si 이종접합 태양전지 제조

정대영,송준용,김경민,이희덕,송진수,이정철,Jeong, Dae-Young,Song, Jun-Yong,Kim, Kyung-Min,Lee, Hi-Deok,Song, Jin-Soo,Lee, Jeong-Chul 한국재료학회 2011 한국재료학회지 Vol.21 No.12

The a-Si:H/c-Si hetero-junction (HJ) solar cells have a variety of advantages in efficiency and fabrication processes. It has already demonstrated about 23% in R&D scale and more than 20% in commercial production. In order to further reduce the fabrication cost of HJ solar cells, fabrication processes should be simplified more than conventional methods which accompany separate processes of front and rear sides of the cells. In this study, we propose a simultaneous deposition of intrinsic thin a-Si:H layers on both sides of a wafer by dual hot wire CVD (HWVCD). In this system, wafers are located between tantalum wires, and a-Si:H layers are simultaneously deposited on both sides of the wafer. By using this scheme, we can reduce the process steps and time and improve the efficiency of HJ solar cells by removing surface contamination of the wafers. We achieved about 16% efficiency in HJ solar cells incorporating intrinsic a-Si:H buffers by dual HWCVD and p/n layers by PECVD.

EEG 분석과 분류시스템

정대영,김민수,서희돈,jung Dae-Young,Kim Min-Soo,Seo Hee-Don 한국융합신호처리학회 2004 융합신호처리학회 논문지 (JISPS) Vol.5 No.4

최근 웨이블릿 변환은 많은 분야에서 다양하게 적용된다. 본 논문에서 tasks뇌파의 중요한 몇가지 특성파 검출을 위한 다비치 웨이블릿은 뇌파분석에 필요하다. 우리가 제안한 시스템은 다른 방법보다는 특성파 검출에 높은 성능을 가졌다. 본 연구의 뉴럴시스템의 구조는 하나의 은닉층과 3계층 피드포워드층은 오류 BP 학습알고리즘을 적용하였다. 4명의 피험자에게 알고리즘을 적용하여 92% 분류율을 보였다. 제안된 시스템은 웨이블릿과 신경망으로 tasks 뇌파의 보다 정확하게 분석함을 보였다. 모의실험결과 tasks 뇌파는 의사의 노동력을 줄일수 있고 정량적 해석이 가능함을 보였다. Recently, wavelet transform have been applied to various kinds of problems in many fields. In this paper, we propose method of Daubechies wavelet to detect several kinds of important characteristic waves in tasks EEG that are needed to diagnose EEG. We show that our system could be attained higher performance in detecting characteristic waves than the other methods. In this system, the architecture of the neural network is a three layered feed-forward networks with one hidden layer which implements the error back propagation teaming algorithm. Applying the algorithms to 4 subjects show 92% classification rates. The proposed system shows a little more accurate diagnosis for task EEG by Wavelet and neural network. From the simulation results by the implemented system, we demonstrated this research can be reduce doctor's labors and quantitative diagnosis of task EEG.

한방 변증과 양방 협진에 의한 전신성 홍반성 낭창(Systemic Lupus Erythematosus) 치료 1예

정대영,백동기,황상일,신선호,김동웅,한명아,Jung, Dae-Young,Baek, Dong-Gi,Hwang, Sang-Il,Shin, Sun-Ho,Kim, Dong-Woung,Han, Myoung-Ah 대한한방내과학회 2002 大韓韓方內科學會誌 Vol.23 No.2

Systemic Lupus Erythematosus(SLE) is a autoimmune disease characterized by combined symtoms of malar rash, discoid rash, neuropsychiatric disorder, renal disorder, hematologic disorder, photosensitivity immunologic disorder, oral ulcer, anti-nuclear antibody, arthritis, pleuritis and pericarditis, etc. Multiple genetic or environmental causes are supposed to facilitate antiboby production to autoantigen such as ds-DNA, histone, phospholipid, red blood cell, platelet, etc. And defective complementary system fail to remove autoantigen-antibody complex, which deposit in multiple organs and result in inflammatory damages. SLE does not correctly correspond to any specific category of oriental medicine. But, accoring to previous reports, it can be controlled by herb medications used differently patients-to-patients. So we are to report this one SLE case being successfully controlled by classic corticosteroids with herb medications based on oriental diffrential diagnosis of symptoms and signs.

천마구등음(天麻鉤藤飮)의 항한질성(抗癎疾性) 효과(效果)에 대한 실험적(實驗的) 연구(硏究)

정대영,이인,문병순,Jeong, Dae-Young,Lee, In,Moon, Byung-Soon 대한한방내과학회 1997 大韓韓方內科學會誌 Vol.18 No.2

This study has been carried out to investigate the effects of Cheonmagudeungyeum(CGY) extract on anti-convulsive, antipyretic, analgesic, sedative and GABAergic system of experimental animals. The results of this study were as follows : 1. CGY extract prolonged significantly the beginning time to convulsion and death induced by strychnine. 2. CGY extract prolonged significantly the time to death induced by electrical shock of ECT unit(3 sec, 200 F, 25 mA) 3. On the experiment of hypothermic effects of CGY extract on the rectal temperature of mice, CGY extract decreased the rectal temperature of mice. 4. On the experiment of antipyretic effects of CGY extract on the febrile induced by the subcutaneous injection of $150\;{\mu}g/kg$ endotoxin in mice, CGY extract decreased significantly the rectal temperature of mice. 5. On the experiment of analgesic effects of CGY extract on the writhing syndrome induced by intraperitoneal injection 0.7% acetic acid 1 ml/100g in mice, the writhing syndrome induced by acetic acid was reduced significantly by administration of CGY extract. 6. On the experiment of effects of CGY extract on spontaneous motor activity measured by wheel cage method in mice, the spontaneous motor activity was reduced significantly by administration of CGY extract 7. On the experiment of effects of CGY extract on the activity of GABA - transaminase (GABA-T) in mouse brains after 21 days of oral administration of CGY extract, the activity of GABA-T was reduced significantly by administration of CGY extract. 8. On the experiment of effects of CGY extract on the activity concentration of GABA in mouse brain after 21 days of oral administration of CGY extract, the activity concentration of GABA was reduced significantly by administration of CGY extract. 9. On the experiment of effect of CGY water extract on the activity of GAD in mouse brain after 21 days of oral administration of CGY extract, the activity of GAD was reduced significantly by administration of CGY extract. According to the these results, Cheonmagudeungyeum extracts reveal the effects on the anti-convulsive, antipyretic, analgesic, sedative and GABAergic system.

장애영유아의 교육권과 보육지원에 대한 어린이집 유형에 따른 원장의 인식 차이

정대영(Jung Dae Young),조희제(Cho He Jea) 학습자중심교과교육학회 2018 학습자중심교과교육연구 Vol.18 No.10

본 연구는 장애영유아의 교육권과 보육지원에 대한 어린이집 원장의 인식을 분석하는 데 목적을 두고 부산 및 경남지역에 소재한 장애영유아를 보육하고 있는 어린이집원장 157명을 연구대상으로 선정하여 2018년 3월 2일부터 31일까지 약 한 달에 걸쳐 설문조사를 수행하였다. 수집된 설문 자료는 SPSS 프로그램을 이용하여 분석하여 다음과 같은 연구결과를 도출하였다. 첫째, 장애영유아의 교육권은 보통 수준이었고 발달권과 참여권이 상대적으로 낮게 인식되었고, 장애아전문, 장애아통합, 일 반어린이집 원장 순으로 교육권을 높게 인식하였다. 둘째, 장애영유아에 대한 보육지원 실태를 분석한 결과, 인적, 재정·물리적, 교육적, 행정적 지원의 높은 필요성에도 불구하고 장애아통합어린이집과 장애아를 보육하고 있는 일반어린이집을 중심으 로 실제 지원 정도가 충분하지 않는 것으로 나타났다. 보육지원 방안으로 외부활동을 돕기 위한 보조인력 지원, 장애 관련 서비스 지원, 장애영유아 상담 지원, 장애영유아 보육지원센터 구축 및 확대를 높게 인식하였다. 따라서 장애영유아의 교육권을 확보하기 위해 인적, 재정 및 물리적, 교육적, 행정적 지원 방안을 다각적으로 검토 해야 할 것이다. The purpose of this study is to analyze the daycare center directors perception of education rights and childcare support for young children with disabilities. Targeting 157 directors of daycare centers for young children with disabilities in Busan and Gyeongnam regions, the survey was performed for about a month from March 2nd to 31st, 2018. The collected survey data was analyzed by using SPSS Program, and the results of this study were drawn as follows. First, the education rights for young children with disabilities showed the average level while the perception of rights to develop and participate was relatively low. Also, the education rights were highly perceived in the order of directors of daycare centers specialized for children with disabilities, daycare centers integrated with children with disabilities, and general daycare centers. Second, in the results of analyzing the actual status of childcare support for young children with disabilities, in spite of high necessity of human/financial & physical/educational/administrative support, the actual degree of support for daycare centers integrated with children with disabilities and general daycare centers with children with disabilities was not good enough. As measures for childcare support, the support of assistant staffs for helping outdoor activities, support of service related to disabilities, support of counseling for young children with disabilities, and the establishment/expansion of childcare support center for young children with disabilities were highly perceived. Therefore, in order to secure the education rights for young children with disabilities, the human/financial & physical/educational/administrative support measures should be multilaterally reviewed.

통합된 발달지체유아의 사회적 상호작용 중재에 대한 연구동향 분석: 국내 단일대상연구

정대영(Jung Dae Young),정인숙(Jung In Suk),하창완(Ha Chang Wan) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.21

본 연구는 2000년 1월부터 2019년 3월까지 통합된 발달지체유아의 사회적 상호작용 중재를 실시한 단일대상연구의 연구동향을 분석하여 실제 발달지체유아가 있는 학급이나 임상장면에서 활용할 수 있는 증거 기반의 사회적 상호작용 중재 유형, 중 재 회기, 중재 환경, 중재자와 같은 실제적 정보를 제공하는데 목적을 두고 있다. 이에 국내 학술지에 게재된 통합된 발달지체유아의 사회적 상호작용 중재를 수행한 단일대상연구 21편을 일반적 특성에 의한 분석, 증거기반의 지표에 따른 분석, 비중복 비율(PND)을 이용하여 효과크기 분석을 하였다. 일반적 특성에 대한 분석 기준으로는 연구동향, 연구 설계 특성에 대해 분석하였고, 증거기반의 지표에 따른 분석은 CEC (2014)에서 개발한 질적 지표 중에서 단일대상 연구방법에 해당하는 8가지 영 역의 22개 문항을 분석하였다. 또한, 비중복 비율(PND)을 이용하여 중재회기, 중재자, 중재 환경, 독립변인, 종속변인의 효과크기를 분석하여 결과를 제시하였다. 끝으로 이러한 연구의 결과를 기반으로 통합된 발달지체유아의 사회적 상호작용 추후연 구를 위한 방향 및 논의를 제시하였다. The purpose of this study is to provide practical information such as evidence-based social interaction intervention types, intervention agent, intervention sessions, and ntervention settings that can be used in classrooms or clinical settings with young children with developmental delays through research trends of single-subject research about social interaction interventions between January 2000 and march 2009. For this purpose, 21 single-subject studies that conducted integrated social interaction ntervention of young children with developmental delays published in Korean journal articles were analyzed based on general characteristics, analyzed according to evidence-based indicators, and effect size analysis using non-redundant ratio (PND). The analysis criteria for general characteristics are tendency of research and research design characteristics. The analysis of evidence-based indicators analyzed 22 questions in eight areas of quality indicators developed by CEC (2014), corresponding to a single subject research method. In addition, the effect size using the non-redundant ratio (PND) was presented by analyzing the intervention session, intervention agent, ntervention environment, independent variable, dependent variable. Finally, based on the results of these studies, the orientation and discussion for follow-up study of integrated social interactions of young children with developmental delays was presented.

자궁외임신에서 내 외과적 치료의 비용 절감 효과 비교

정대영(Dae Young Chung),신종철(Jong Chul Shin),백은정(Eun Jung Baik),이영(Young Lee),유영옥(Young Oak Lew),이종건(Jong Kun Lee),김창이(Chang Yi Kim),김대훈(Dae Hoon Kim),김수평(Su Pyung Kim) 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.12

N/A The incidence of ectpic pregnancy has increased rapidly over the past decade. Currently, the complications of this disorder make it one of the leading causes of maternal mortality and morbidity. In the late 1980s, reports of successful use of methotrexate (MTX) as a non surgical treatment for ectopic pregnancy (EP) also began to appear in the literature. With MTX emerging as a possible alternative management of selected women with an EP, an analysis of its comparative costs is now needed. We examined retrospectively the costs associated with management of EP in our hospital. We selected 30 women with EPand divided them into two groups of MTX treated group (n= l0) and surgically treated group (n=20). There were no statistically significant differences in the doctors fee, room, charge and cost of laboratory and radiologic examination between two groups. But We found significant reduction in cost with regard to pharmacy, injection, procedure and operation of MTX treated group compared to surgically treated group (p<0.05). Consequently the use of MTX for EP should still be considered investigational; we recognize and agree that the evolution of this remedial option should be based primarily on its ability to decrease morbidity and mortality rather than on its ability to reduce costs. If medical treatment proves to be effective, the potential cost savings demonstrated in this report will become an important influential factor on selecting alternative remedy.

음악개념 기반 음악교육에 대한 장애영유아 담당교사의 인식과 실제

윤혜진(Yoon, Hye-Jin),정대영(Jeong Dae-Young) 학습자중심교과교육학회 2018 학습자중심교과교육연구 Vol.18 No.24

본 연구는 장애 영유아들을 담당하고 있는 교사들을 대상으로 음악개념 기반 음악교육에 대한 이들의 인식과 실제 수준 간의 차이 및 관련성을 분석하는 데 목적을 두고 경남 지역에 소재한 유치원과 어린이집에서 장애 영유아를 담당하고 있는 교사 250명을 연구 대상으로 선정하여 2018년 3월 5일부터 15일까지 2주간에 걸쳐 설문조사를 수행하였다. 수집된 설문 자료는 SPSS 프로그램을 이용하여 다음과 같은 연구 결과를 도출하였다. 첫째, 음악개념 기반 음악교육에 대한 인식 수준에 비해 실제 수행 수준이 낮게 나타났고, 음악개념 기반 음악교육에 대한 인식 수준이 높은 집단이 낮은 집단보다 음악개념 기반 음악교육의 실제 수준에서 높게 나타났다. 둘째, 음악 개념 기반 음악교육에 대한 인식과 실제 수준 간에는 매우 높은 유의한 관련성이 있는 것으로 나타났고, 음악개념 기반 음악교육에 대한 인식이 실제 수준에 긍정적인 영향을 미치는 것으로 나타났다. 따라서 현직 영유아 교사들을 대상으로 음악개념 기반 음악교육에 대한 지식과 경험을 공유할 수 있는 실천적인 현직연수 프로그램을 강화해야 할 것이다. This research established following research problems, aiming to analyze difference and relation between the cognition of teachers who take care of young children with disabilities, who are in a decisive period of musical development, on music concept based education, and the actual level. To solve the research problems, this research conducted a survey targeting 250 teachers who take care of young children with disabilities at the kindergartens and Day care centers in Gyeongnam. This research performed frequency analysis, descriptive statistics, reliability analysis, independent sample t-test, correlation, and simple regression analysis using SPSS program. Based on the analysis result, this research derived following conclusion. First, a difference appeared between the level of cognition on music concept based music education and the actual level. Second, a significant relation appeared between the cognition of music concept based music education and the actual level, and the cognition of music concept based music education displayed a significant and positive influence. This research suggested the material for the understanding of the actuality of teaching activity of music concept based music education through analysis of difference of the actuality of music concept based music education according to teacher of young children with disabilities’ music experience and characteristic and for the efficient teacher training.

공간자기상관기법을 이용한 근린상권의 공간특성분석

정대영(Jung Dae Young),손영기(Son Young Gi) 대한공간정보학회 2009 대한공간정보학회지 Vol.17 No.1

상점의 정보, 서비스업 등을 영위하기 위한 공간입지에 대한 정보(인구생태학적 변수, 사회생태학적 변수)의 탐색적 자료 분석을 위해 공간 특성분석이 필요하다. 따라서 본 연구에서는 지리적 공간상에서 공간객체간의 상호의존성과 상호작용과 통계적 상관분석을 이용하여 서비스업종간의 상관분석법을 제시하고자 하며, 또한 근린상권의 업종간 상관관계분석의 도출을 통하여 공간특성에 대한 분석을 하기 위함이다. A analysis on the spatial features is required for exploratory spatial data analysis of information about space location(population ecological factor, social ecological factor) to manage the store factors, the service industry, etc. Therefore, the purpose of this study is to provide correlation analysis method between the types of service trade using dependence between spatial objects on the geographical space and statistical correlation and to analyze the spatial features through the deduction of correlation analysis between the types of the neighborhood trade area.

다수의 경쟁이 존재하는 환경에서 적시 스케줄링에 관한 연구

정대영(Dae-Young Chung) 한국경영과학회 2012 韓國經營科學會誌 Vol.37 No.1

We consider a multi-agent scheduling problem such that each agent tries to maximize the weighted number of just-in-time jobs. Two objectives are considered : the first is to find the optimal solution for one agent with constraints on the other agents’ weight functions, and the second is to find the largest set of efficient schedules of which corresponding objective vectors are different for the case with identical weights. We show that when the number of agents is fixed, the single machine case with the first objective is NP-hard in the ordinary sense, and present the polynomial-time algorithm for the two-machine flow shop case with the second objective and identical weights.