AlO_x와 SiO₂ 형판위 CdSe와 CdS 박막의 우선방위(Preferred Orientation) 특성

이영건,장기석,Lee, Young-Gun,Chang, Ki-Seog 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.4

In order to find the structural characteristics of the thin films of group II-VI semiconductor compounds compared with those of powder materials, films were made of 4 powders of ZnS, CdS, CdSe, and CdTe(Aldrich), each with 99.99 % purity. For the ZnS/CdS multi-layers, the ZnS layer was coated over the CdS layer on an $AlO_x$ membrane, which served as a protective layer within a vacuum at the average speed of 1 ${\AA}$/sec. After studying the structures of the group II-VI semiconductor thin films by using X-ray spectroscopy, we found that the ZnS, ZnS/CdS, CdS, and CdSe films were hexagonal and exhibited some degree of preferred orientation. Also, the particles of the thin films of II-VI semiconductor compounds proved to be more homogeneous in size compared to those of the powder materials. These results were further verified through scanning electron microscopy(SEM), EDX analysis, and powder and thin film X-ray diffraction.

중학교 특수학급 알림장(SNS 활용) 제공을 통한 장애학생 부모의 인식 및 태도 변화

이영건,유은정 한국특수아동학회 2018 특수아동교육연구 Vol.20 No.1

Purpose: This study was to know about the attitudes of parents of middle school students with special need according to class mobile note by special education teachers. Method: The participants of this study were 4 mothers and 1 father of the students with special needs in H middle school. Research design was qualitative study through deep pre and post of interview. Class mobile note was carried out with ‘band ; SNS application’ for 2 months 29 activities. Results & Conclusion: First, parents were about to respect their children and understood their emotion and communication. And conversation was getting to be more and diverse. Second, parents were getting to be appreciated to teachers and school. They thought that their chidren enjoyed the school lives. They are getting to truth in special education and special teachers. Third, parents wanted to know about the school lives of their children in inclusive classroom, and interact with other parents. 연구목적: 본 연구는 중학교 특수학급 교사의 학교생활 알림장(SNS활용) 제공에 따른 부모의 태도 변화를 알아보고자 하였다. 연구방법: 이를 위해 중학교 특수학급에 재학 중인 장애학생의 어머니 4명, 아버지 1명에게 학교생활 알림장 제공 사전 및 사후 심층 면담을 실시하였고, 질적 연구방법을 통해 부모의 태도 변화를 알아보았다. 학교생활 알림장은 소셜 네트워킹 어플리케이션인 ‘밴드’를 활용하여 2개월 간 총 29건의 학교생활알림으로 구성되어 있다. 연구결과 및 결론: 알림장 제공 후, 부모의 태도 변화는 다음과 같다. 첫째, 자녀에 대한 부모의 태도는 자녀의 자율과 독립성을 존중하게 되었고, 감정 및 의사표현을 이해하게 되었다. 또한 가정에서 자녀를 지도 시 대화 내용이 더 다양해졌으며, 가정에서도 스스로 하게 지도하였다. 그리고 수용적인 엄마와 강압적인 아빠와의 갈등에서 긍정적인 변화를 경험했음을 알 수 있다. 둘째, 학교와 교사에 대한 부모의 태도에서도 긍정적인 인식 변화를 볼 수 있다. 아이에 대한 학교의 관심에 감사하게 되었고, 학교는 아이가 즐거워하는 곳이라고 생각하게 되었기 때문이다. 그리고 특수교사와 특수교육에 대한 신뢰와 기대가 높아졌지만, 담임교사보다 특수교사를 더 의존하는 태도를 보이기도 하였다. 셋째, 장애자녀 부모의 학교생활정보 교류에 대한 요구에 대해서는 부모는 자녀의 일반학급에서의 모습을 알고 싶어 했으며, SNS 알림장을 활성화하기를 기대하였다.

자발중대뇌동맥박리에 의한 급성 뇌경색에서 성공적인 스텐트혈전제거술

이영건,허준녕,박민철,강성우,윤소훈,이준홍,조정희,김종헌,이지은,김규식 대한신경과학회 2016 대한신경과학회지 Vol.34 No.3

Spontaneous dissection of the middle cerebral artery could result in thromboembolic stroke caused by the intramural hematoma. Dissection should be considered as a possible etiology in a young stroke patient, but it is not straightforward in an emergency situation. Moreover, the efficacy and safety of thrombolytic treatment in the acute stage are unknown. We applied intravenous and intra-arterial stent thrombectomy with the Solitaire device successfully in a patient with acute left middle cerebral artery occlusion due to spontaneous dissection.

Early-Onset LMNA-Associated Muscular Dystrophy with Later Involvement of Contracture

이영건,이정환,박형준,최영철 대한신경과학회 2017 Journal of Clinical Neurology Vol.13 No.4

Background and Purpose The early diagnosis of LMNA-associated muscular dystrophy is important for preventing sudden arrest related to cardiac conduction block. However, diagnosing early-onset Emery-Dreifuss muscular dystrophy (EDMD) with later involvement of contracture and limb-girdle muscular dystrophy type 1B is often delayed due to heterogeneous clinical presentations. We aimed to determine the clinical features that contribute to a delayed diagnosis. Methods We reviewed four patients who were recently diagnosed with LMNA-associated muscular dystrophy by targeted exome sequencing and who were initially diagnosed with nonspecific or other types of muscular dystrophy. Results Certain clinical features such as delayed contracture involvement and calf hypertrophy were found to contribute to a delayed diagnosis. Muscle biopsies were not informative for the diagnosis in these patients. Conclusions Genetic testing of single or multiple genes is useful for confirming a diagnosis of LMNA-associated muscular dystrophy. Even EDMD patients could experience the later involvement of contracture, so clinicians should consider early genetic testing for patients with undiagnosed muscular dystrophy or laminopathy.

Ultra Low Density Polyethylene and Their Blends

이영건,정한모,김병규,정영태,김국중 한국고분자학회 1989 한국고분자학회 학술대회 연구논문 초록집 Vol.1989 No.10

AlOx와 SiO2 형판위 CdSe와 CdS 박막의 우선방위(Preferred Orientation) 특성

이영건,장기석 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.4

In order to find the structural characteristics of the thin films of group Ⅱ-Ⅵ semiconductor compounds compared with those of powder materials, films were made of 4 powders of ZnS, CdS, CdSe, and CdTe(Aldrich), each with 99.99 % purity. For the ZnS/CdS multi-layers, the ZnS layer was coated over the CdS layer on an AlOx membrane, which served as a protective layer within a vacuum at the average speed of 1 Å/sec. After studying the structures of the group Ⅱ-Ⅵ semiconductor thin films by using X-ray spectroscopy, we found that the ZnS, ZnS/CdS, CdS, and CdSe films were hexagonal and exhibited some degree of preferred orientation. Also, the particles of the thin films of Ⅱ-Ⅵ semiconductor compounds proved to be more homogeneous in size compared to those of the powder materials. These results were further verified through scanning electron microscopy(SEM), EDX analysis, and powder and thin film X-ray diffraction.

이산화탄소 배출제약하의 전원계획

이영건,이한명,이만기 한국환경경제학회 한국자원경제학회 1992 자원·환경경제연구 Vol.1 No.1

균형적 언어교수 프로그램이 지적장애 초등학생의 언어능력에 미치는 효과

이영건,유은정 한국특수아동학회 2022 특수아동교육연구 Vol.24 No.3

Purpose: The purpose of this study was to examine the effect of a balanced language instruction program on the language ability (receptive and expressive language, grammatical morpheme and vocabulary) of students with intellectual disabilities in elementary school. Method: To this end, grammatical morpheme and vocabulary were taught in a balanced way, with phonics instruction and a whole language approach based on fairy tales. This study conducted a balanced language instruction program of 40 sessions for 3 elementary school students with intellectual disabilities. To examine the improvement of receptive and expressive language skills, a Language Scale of School age Children (LSSC: standardized test) was used for pretest-posttest designs. For grammatical morphemes and vocabulary, a formative test (a non standardized and randomized equivalent test made by researchers)was performed, and a multiple baseline design between subjects was applied. Results: The balanced language instruction program was effective in improving the language ability (receptive and expressive language, grammatical morpheme and vocabulary)of three elementary students with intellectual disabilities. Three participants with intellectual disabilities improved their receptive and expressive language scores in the LSSC pre-post test design. In the results of applying the multiple baseline design between the subjects by conducting the formative test, both grammatical morpheme and vocabulary scores showed improvement. Conclusion: The balanced language instruction program, which balanced the phonics instruction and whole language approach method, and applied various elements complementary to each other, was effective in improving the language ability of elementary school students with intellectual disabilities. Individual instruction on grammar and vocabulary was provided based on fairy tales that aroused the students' interests. 연구목적: 균형적 언어교수 프로그램이 지적장애 학생의 언어능력(수용 및 표현언어, 문법형태소와 어휘력)에 미치는 효과를 살펴보고자 하였다. 연구방법: 연구 참여 학생은 지적장애 초등학생 3명으로 균형적 언어교수 프로그램을 적용하여 문법형태소와 어휘를 중심으로 지도하였고, 사전・사후 검사 설계와 대상자가 중다기초선설계를 적용하여 언어능력 변화를 살펴보았다. 사전・사후 검사는 LSSC 각 하위영역들의 점수 변화를 비교하였고, 연구자가 제작한 형성평가지를 수행하여 문법형태소와 어휘력 변화를 대상자간 중다기초선설계를 적용하여 살펴보았다. 연구결과: 첫째, 균형적 언어교수 프로그램은 지적장애 초등학생의 언어능력(수용 및 표현언어, 문법형태소 및 어휘력) 향상에 효과적이었다. 연구에 참여한 지적장애 초등학생 모두 LSSC 사전 및 사후 검사에서 수용 및 표현언어 점수가 향상되었다. 둘째, 형성평가지를 실시하여 대상자간 중다기초선설계를 적용한 결과에서도 모두 문법형태소와 어휘력 점수 향상을 나타냈다. 결론: 균형적 언어교수 프로그램은 지적장애 초등학생의 언어능력 향상에 효과적이었다. 학생의 흥미를 유발하는 동화라는 매체를 바탕으로 문법과 어휘의 개별적 지도가 이루어졌다. 또한 지적장애 초등학생의 발달 특성과 흥미와 요구에 적합하도록 국어과 교육과정을 중심으로 프로그램 활동 및 내용요소가 구성된 것은 교육현장에서 국어기능과 언어능력 신장을 위해 효과적인 지도방법임을 제안한다.

젯슨 나노 기반의 차량 추적 캔위성 시스템 개발

이영건,유승훈,이상현,이상구 한국정보통신학회 2023 한국정보통신학회논문지 Vol.27 No.2

본 연구는 국민 건강 검진 결과를 활용하여 건강점수 산출하는 새로운 방법을 제시하고 해당 결과의 타당성을 확인한 연구다. 건강점수(Health Score, ‘HS’)는 건강 검진 항목에 대한 임상적 기준과 통계적 장치를 적용하여 개인 건강 정도를 점수화한 지표로 특정 검진 항목이 건강변화량에 미치는 전체 크기와 건강변화량에 주는 영향력, 바이오마커가 정상 범위에서 벗어난 비율에 따른 가중치 변화율, 표준화 값으로 계산된다. 지표에 대한 검증은 선정된 질환에 대하여 질환 발생군과 미발생군 간의 HS를 비교하고, HS 순으로 나눈 구간에서 질환 발생률을 비교하여 타당성 검증을 시도하였다. 그 결과, 모든 선정 질환에서 질환의 유무에 따라 평균 HS 차이는 유의하였고, HS가 감소함에 따라 선정 질환의 발생률이 증가하는 경향을 보였다.

얼굴 정보를 이용한 대형 카메라 네트워크에서의 사람 추적 시스템

이영건,Lee, Younggun 한국정보통신학회 2022 한국정보통신학회논문지 Vol.26 No.12

In this paper, we propose a new approach for tracking each human in a surveillance camera network with various resolution cameras. When tracking human on multiple non-overlapping cameras, the traditional appearance features are easily affected by various camera viewing conditions. To overcome this limitation, the proposed system utilizes facial information along with appearance information. In general, human images captured by the surveillance camera are often low resolution, so it is necessary to be able to extract useful features even from low-resolution faces to facilitate tracking. In the proposed tracking scheme, texture-based face descriptor is exploited to extract features from detected face after face frontalization. In addition, when the size of the face captured by the surveillance camera is very small, a super-resolution technique that enlarges the face is also exploited. The experimental results on the public benchmark Dana36 dataset show promising performance of the proposed algorithm.