마이크로프로세서에 의한 생체신호용 저역 디지털 필터의 설계 및 구현에 관한 연구

이영욱,Lee, Young-Wook 한국정보기술전략혁신학회 2006 情報學硏究 Vol.9 No.1

This study is for the contents of development to the hardware system and software driving algorithm to implement the frequency band of about 7KHz los pass digital filter which has the cut-off frequency of 392Hz by interfacing of a microprocessor with its peripheral analog-to-digital converter chip and digital-to-analog converter chip. The simplicity of digital filter design without difficulty and the implementation of programmed digital filter can be realized by providing the interfacing method to implement the law pass digital filter for the biological signals and the realization method of computer algorithm by a microprocessor.

신체화 증상을 호소하는 초등학생의 자아존중감 및 정신건강에 관한 연구

이영욱,Lee. Young-Wook 순천향대학교 인문학연구소 2015 순천향 인문과학논총 Vol.34 No.2

본 연구는 심인성(心因性)요인으로 신체화 증상을 호소하는 초등학교 학생의 자아존중감 및 정신건강에 대해 조사한 연구이다. 심리정서적인 문제가 있는 학생은 신체적으로 증상을 호소하며 보건실을 자주 방문하는데 이들 아동들의 신체증상의 해소뿐만 아니라 심리적 특성을 파악하여 이를 감소시킴으로써 즐거운 학 교생활이 되도록 하며, 건강한 성장 발달을 도모하기 위해 시도되었다. 이를 위하여 충남 A시 초등학교 중에서 임의 선정한 3개 초등학교 4, 5, 6학년을 대상으로 2014년 4월 1일부터 2014년 6월 30일까지 3개월 동안 심인성 (心因性)요인으로 신체화 증상을 호소하며 최소 10회 이상 보건실에 방문하는 학 생을 대상으로 선정하였으며 보건일지의 실태분석 및 상담을 병행하였다. 남ㆍ여 각 21명의 실험군 42명과 남ㆍ여 각 21명의 대조군 42명, 총 84명을 연구대상으로 선정하였다. 연구결과, 실험군에서 자아존중감 및 정신건강 반응 간에 유의한 음의 상관관계가 있는 것으로 나타났다. 따라서 학생들의 건강한 성장 발달과 학교생활적응에 중요한 자아존중감의 향상을 통하여 정신건강 예방 면에 기여할 수 있도록 다각적이고 사회적인 지지 방법을 모색할 필요가 있다고 사료된다. Purpose: In this study is on self-esteem and mental health of elementary school students with somatic symptoms manifest as psychogenic factors. This tries to relieve the somatic symptoms of these students and assist with contribute to the healthy development growth to be good in school. Methods: For this study, subjects are from a random selection of three elementary schools, grades 4,5,6 located in the city of Asan, Chungnam province. Study was started from April 1, 2014 to June 30, 2014. Students who utilizing more than 10 times the minimum at school health clinics and complained of physical symptoms were due to psychogenic factors. It was in conjunction with daily health record analysis and counseling. The study consisted of a experimental group of 42 students 21 male, 21 female. The control group of the same size. totalling eighty four students in all. Result: There was a negative significant correlation between social self-esteem and mental health in experimental group. A multifaceted social support is needed to help students to improve their mental health problems based on the improvement of social self-esteem.

컴퓨터 알고리즘에 의한 표면온도와 레이저 열전도에 관한 연구

이영욱,Lee, Young-Wook 한국정보기술전략혁신학회 2006 情報學硏究 Vol.9 No.3

This study deals with the computing the temperature change of surface to the increment of time and diffusivity, the heat flux during irradiation of laser. In addition, the computer algorithm for computing the penetration change of the corresponding surface irradiated is developed. The result of this study shows the possibility to treatment of cancer, abnormal cell and biological tissue during irradiation of laser.

생체신호용 능동 필터 설계를 위한 컴퓨터 알고리즘에 관한 연구

이영욱,Lee Young-Wook 한국정보기술전략혁신학회 2003 情報學硏究 Vol.6 No.3

This study shows the implementation of the computer algorithm of active filter less than or equal to the 10th order for biological signals which is indispensably used as the interfaces for biological signal instrumentation of human body. Applications in the field of medial science are proposed by improving the weak point of manually calculated design which takes a lot of time and the complexity to design the active filter.

pH에 의한 골드나노입자의 사이즈 조절과 표면라만증강의 효과

이영욱,신태호,Lee, Young Wook,Shin, Tae Ho 한국결정성장학회 2019 한국결정성장학회지 Vol.29 No.6

금 나노 입자의 합성은 폴리바이닐피롤리던(PVP)의 계면 활성제로 아스코르브 산(AC)에 의한 골드 솔트의 환원을 통해 수용액 환경을 만들었다. pH 제어에 의해 4 내지 20 nm의 크기 범위를 갖는 고분 산성 금 입자를 고수율로 제조하였다. 합성된 금 나노 입자의 구조적 및 광학적 특성은 투과 전자 현미경(TEM) 및 UV-vis 분광법에 의해 특성화되었다. 제조된 나노 입자는 효율적인 표면 강화 라만 산란(SERS) 특성을 나타내었고, 이들의 SERS 활성은 크기에 의존한다. Synthesis of gold nanoparticles (NPs) made an aqueous environment via the reduction of HAuCl₄ by ascorbic acid (AC) with the surfactant of polyvinylpyrrolidone (PVP). Highly monodisperse gold particles with size ranges from 4 to 20 nm were prepared in high-yield by pH control. The synthesized gold nanoparticles were analyzed for structural and optical properties using transmission electron microscopy (TEM) and UV-vis spectroscopy. In this study, we could reveal that the prepared nanoparticles exhibited efficient surface-enhanced Raman scattering (SERS) properties, and their SERS activities depends on size.

고온 환경을 고려한 초고강도 콘크리트의 크리프 특성 평가

이영욱(Lee, Young Wook),김규용(Lee, Young Wook),최경철(Choe, Gyeong Cheol),윤민호(Yoon, Min Ho),이보경(Lee, Bo Kyeong),미야우치 히로유키(Miyauchi Hiroyuki) 한국콘크리트학회 2014 한국콘크리트학회 학술대회 논문집 Vol.2014 No.5

거시적 모델을 이용한 내력벽 시스템의 Pushover 해석

이영욱(Lee, Young Wook) 한국콘크리트학회 2006 한국콘크리트학회 학술대회 논문집 Vol.2006 No.11

미만성 대세포 B형 림프종이 동반된 미만성 편평 황색종

이영욱 ( Young Wook Lee ),김현준 ( Hyun Joon Kim ),서영주 ( Yeong Ju Seo ),박은주 ( Eun Ju Park ),김철우 ( Chul Woo Kim ),조희진 ( Hee Jin Jo ),김광호 ( Kwang Ho Kim ),김광중 ( Kwang Joong Kim ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.3

Diffuse plane xanthoma is a group of plane xanthomas that present in yellow to yellowish-brown flat patches on the periorbital area, neck, upper trunk and flexural folds. It is rare and often associated with reticulo-endothelial malignancies such as multiple myeloma, monoclonal gammopathy of unknown significance and other lympho- proliferative disorders. We report a case of diffuse plane xanthoma associated with monoclonal gammopathy of unknown significance and diffuse large B cell lymphoma in a 75 year-old woman. (Korean J Dermatol 2008; 46(3):369∼373)

비정질 산화물 반도체의 더블게이트 구조를 적용한 고이동도 특성

이영욱(Young Wook Lee),김선재(Sun-Jae Kim),이수연(Soo-Yeon Lee),한민구(Min-Koo Han),이우근(Woo-Geun Lee),윤갑수(Kap-Soo Yoon) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7

에치 스토퍼 구조로 비정질 IGZO 산화물 반도체 TFT를 제작하였다. 싱글게이트 구조일 때 약 7.7㎠/Vs 의 이동도를 보인 반면에, 더블게이트 구조로 제작하면 12.7㎠/Vs의 이동도를 나타내 이동도의 상승을 확인할 수 있었다. 더블게이트 구조에서의 이동도 향상 현상은 실제 캐리어(전자)의 이동도가 향상한 것이라기 보다는 탑게이트 바이어스에 의해 back-interface 부근에 채널이 형성되어 총 채널저항이 감소된 효과로 볼 수 있다. Vd-Id curve를 통해서, 두 구조 모두 current crowding 현상이나 Kink 현상 등이 보이지 않아, 양호한 오믹특성과 안정된 소자특성을 확인할 수 있었다.

포스트콜로니얼리즘!? : 지금 이곳에서 서양미술사 하기와 관련하여

이영욱(Lee Young-Wook) 서양미술사학회 1999 서양미술사학회논문집 Vol.11 No.-

This paper has two purposes. One is to introduce the main issues of the postcolonial theory or postcolonialism which emerges as an important theme among the western academy and the third world scholars. The other is to investigate the possibility of change which it could bring about in the perspectives of our Korean scholars on the western art history and to search the concrete meanings and suggestions it could reserve for the study on that one. As the history shows, Korea has experienced the colonial life during thirty six years by neighboring Japan, not by the western empire. Moreover after we accomplished the political independence from Japan, we underwent the Korean war, which has resulted in the division of the nation, the North Korea and the South Korea. After these historical change, the South has come to be subjugated to America in culture as well as in politics and economy. All these continuous colonial and post-colonial experiences made the culture of the South in the predicament. Considering these historical contexts and the situation, to study the western art history here and now needs the deep self-conscious and self-reliant subjective position. In so far as the western art history is the “western” art history which regards us as “the other”, and is the means of realization of the colonial knowledge-power(as if English literature had been so all over the world), this self-conscious and self-reliant subjective position is seriously needed. What is firstly required for recovering this kind of self- reliant position is to escape from the stage of the unconscious identification with the westernized theories and methods, which can be called as “the imaginary order” in Lacanian terms. It means to keep the distance from the object such as Brecht’s concept on ‘the distancing effect’. By doing so, the identification which is the colonial effect can be removed, and the western art history can be placed (as) the “western“ art history, or positioned properly as the “other” art history which exists as something distinct from our own. Secondly, to arrange the western art history according to our self- reliant subjective problematic is another important work. It means that we should pose the western art history in its own context. It is namely to understand that the western art history has been constituted according to their own history and experience. And It is also to realize that the Western art history has functioned as the institution and discursive complex which has constituted our Korean culture and history in a way of colonialization. Seen in this way, the western art history becomes a part of 1) our humanities 2) western studies 3) contemporary studies, and lastly a means of positive relationship between west and our history. Then, the western art history will be our culture and art history beyond a mere “western” art history. Finally, the self-reliant subjective study on the western art history is to broaden the understanding of our own experiences and to be a part of an engagement in our life. Those understanding and engagement can be the foundation of the research which resists against all kinds of dominance and subordination. Postcolonialism should be fully utilized as an important guide and an research archive for the self- reliant subject study.