실용적이고 간단한 환경시료의 감마핵종 자체흡수보정 방법

이완로,이행필,정근호,최근식,조영현,이창우,정형욱,이은주,소유섭,이종옥,Lee, Wan-No,Lee, Haeng-Pil,Chung, Kun-Ho,Cho, Young-Hyun,Choi, Geun-Sik,Lee, Chang-Woo,Chung, Hyung-Wook,Lee, Eun-Ju,Sho, You-Sup,Lee, Jong-Ok 대한방사선방어학회 2006 방사선방어학회지 Vol.31 No.1

A self-absorption correction is important issue for the exact radioactivity determination of gamma emitting radionuclides in environmental samples which have the range of apparent density from $0.3g/cm^3$ up to $1.5g/cm^3$. In this paper, a practical and simple method without radioactive standard solutions having various densities is proposed for the self-absorption correction of environmental samples by a developed outside beaker surrounding Marinelli beaker. For the densities of 0.8, 1.0, $1.3g/cm^3$, the corrected efficiencies by the new method and the measured those by radioactive standard solutions of the three densities showed good agreement within 4 %. $0.3g/cm^3$ 에서 $1.5g/cm^3$까지 다양한 겉보기 밀도를 갖는 감마방출핵종 환경시료의 정확한 방사능 분석을 위해서 자체흡수보정(self-absorption correction)은 중요한 문제이다. 방사선 표준선원을 밀도별로 제작할 필요없이 마리넬리 비커를 감싸는 외부용기를 새롭게 제작하여 실용적이면서 간단한 자체흡수보정방법을 본 논문에서 제시하였다. 밀도 0.8, 1.0, $1.3g/cm^3$ 대해서 새로운 방법을 이용하여 자체흡수보정을 한 효율들과 밀도별로 직접 표준선원용액을 만들어 측정한 효율값이 4 % 이내에서 일치하였다.

DSLR 카메라와 결합이 가능한 뷰카메라용 멀티커넥터에 대한 연구

이종옥 ( Jong Ok Lee ) 한국사진학회 2010 AURA Vol.0 No.22

The multi-connector(for View Camera) invented in this study can be used on most view cameras with a very few exceptions. Currently, most professional and amateur photographers are using 20-million or greater pixel full-frame digital SLR cameras. Yet, with this invented connector, they can also use their view cameras in combination with their DSLR cameras to produce high-quality photographs. Hence, it becomes possible to use the movement of view cameras along with the latest high-quality lenses and high-end classic lenses. Moreover, the high-quality lenses used on medium format cameras can be used with newly invented pantoscopic lens board to produce fresh experience in shooting. Even the photographs taken by high-priced panorama cameras have distortions; the multi-connector created in this study allows multiple shots to be taken by sliding the DSLR camera side-to-side, which then can be assembled together with Photoshop tools, producing photographs with no distortions and no financial burden on the photographer. The advantages of traditional analog photography that have been advancing for 170 years need to be preserved. The sound harmony of analog photography and digital photography will accelerate the overall advancement of photography.

윤동주 시에 나타난 선비의식의 양상

이종옥(Lee, Jong-ok) 한국문화융합학회 2006 문화와 융합 Vol.28 No.-

This dissertation began from realizing the excessive lack of researches for Korean ideology compared to sufficiency of researches of Western ideologies for Yoon Dong Ju and that the evaluations of him as a national poet is so controversial, as his life and works do not reveal clear resistance. He was a scholar-type poet with a soft and warm nature, but strong will in the inside. Therefore, this dissertation studied what pity and shame that appears frequently in his poems through scholars perspective. Pity that appears frequently in Yoon Dong Jus poems is the image of humanity, a virtue a scholar must have. The scholar nature of Yoon Dong Ju, which is always soft and warm is well shown through his poems. Humanity is the mind to give humanistic, benevolent, kind love to people, and also a mind to sympathize for others. His love began at affection for the family for parents and siblings and widened its scope to brother? neighbor? all human being. The affection(pity) in his poems are well represented through his strong will for independency. The image of pity that comes from inside of him based on his scholars mind made his will for nurturing of virtue and will for independency even stronger. Shame that appears frequently in Yoon Dong Jus poems is the image of justice, which is a virtue that scholars must have. His scholars nature, with soft and warm on the outside and strong will in the inside, is well shown in his poems. Justice originates from shame that one feels from doing something wrong. The reason shame is a dominant image in his poems are actually based on his scholars mind, the image of shame aroused from justice makes his nurturing of virtue and will for independency even stronger. The image of pity and shame are revealed as pain, sadness, humiliation, hatred, and pity for others, and unified his will for independency. Yoon Dong Ju was not a fighter-type, but a soft on the outside and strong in the inside-type scholar. This dissertation unified him as a poet and poetic speaker by revealing his strong will towards independence in union without any inflection through his life and work until he was arrested after writing, Poet written Easy ¹by Japanese police. Through this dissertation, the justice that Yoon Dong Ju is a national poet is rose based on our ideology.

인터넷뱅킹의 서비스 품질이 은행의 신뢰에 미치는 영향에 관한 연구

이종옥(JongOk Lee),서영상(YoungSang Seo) 한국데이타베이스학회 2009 Journal of information technology applications & m Vol.16 No.4

In case of korea, it is said that the service of internet banking is in maturity regarding the number of transactions that internet banking process. So it is necessary to find out the factors that influence customer's trust on bank with the use of internet banking, to preserve existing customers. The purpose of this study is to investigate the effects of the internet banking service quality on trust of banks. For this purpose, eight hypotheses are empirically tested using logistic regression. The empirical results indicated that responsiveness, easy of use, and accuracy from the six dimensions of internet banking service quality factors take significant effect on trust of bank.

화장품용 미분체 혼합공정에서의 분산특성 연구

이종옥 ( Lee J. W. ),송건응 ( Song K. Y. ),서동성 ( Suh D. S. ),유영창 ( Yoo Y. C. ),이헌진 ( Lee H. J. ),강세훈 ( Kang S. H. ) 대한화장품학회 1993 대한화장품학회지 Vol.19 No.1

화장품에 사용되는 미분체의 혼합특성을 알기 위하여 화장품용 미분체 혼합기인 ribbon mixer, powder mixer micropulverizer, fine impact mill에 미립자, 구상 및 판상의 형태를 가진 bulk powders를 혼합시간을 변화 시키면서 혼합하는 실험을 하였다. 혼합분체의 혼합정도를 평가하기 위하여 산화철을 tracer로 사용하였으며, 원료 및 혼합물의 particle size distribution, specific surface area, density 및 표면색상을 측정하였다. 미분체 혼합물의 혼합시간과 표면색상변화, 입도분포 및 비표면적과의 사이에 대수적 1차 상관관계가 성립되었고, 색상의 변화로부터 혼합정도를 평가할 수 있는 간단한 식을 도출하였다. 사용된 혼합기에 대해 혼합기구별 modelling과 혼합에 따른 입도 분포 및 비표면적의 변화로부터 혼합기 impellar tip에서의 linear velocity별 혼합기는 대류혼합, 전단혼합 및 확산혼합으로 분류되었다. The cosmetic fine powders were mixed with variation of mixing time(s) in the mixers (ribbon mixer, powder mixer, micropulverizer and fine impact mill). The powders were nixed with small amount of ferric oxide as tracer. The mixed powders ere measured the particle size distribution, specific surface area and surface color with mixing time (s). The color variation, particle size distribution and specific surface area of the mixed powder exist a relationship with mining time(s) that can be expressed as mathematical equations to show the degree of the mixing of the powder mixture. The linear velocity of the impellar tip is the main factor contributing to he mixing efficiency of the mixers un this study. According to the linear velocity, he mixers used are devieded as convection mixing (ribbon mixer), sclera mixing powder mixer) and diffusion mixing (micropulverizer/fine impact mill).

고급 중형렌즈의 DSLR적용을 위한 실험

이종옥 ( Jong Ok Lee ),안시준 ( Si Joon An ) 한국사진학회 2012 AURA Vol.0 No.26

This study was done to prove how high-quality analog lenses (for film cameras) can be used efficiently in midst of recent influx of digital cameras. The benefits of using semi format camera lens on DSLR are explained in this study supported by empirical data. Specifically, the study focuses on resolution measurements that can be used to infer the lens quality. For this study, Canon Zoom Lens (24-70mm 1;2.8 L) and popular semi format camera lenses with similar focal distance were used. Moreover, Simenstar Resolution Chart was used to measure the resolution and IE Analyzer was used to analyze the data. The results showed that semi format camera lens produces higher resolution that regular DSLR lenses. Also, closing the aperture was found to decrease overall resolution but it also decreases the resolution gap between the focus area and the peripheral area. The study discusses two major findings: 1) using a high quality semi format camera lens produces higher quality photographs than using a DSLR lens, and 2) the relatively low price of analog lenses offer an economical path in producing high quality photographs.

양측성 경골하 부골 1례 보고

이종옥(Jong Ok Lee),권순원(Soon Woun Kwon),이원갑(Won Kap Lee) 대한정형외과학회 1981 대한정형외과학회지 Vol.16 No.4

무료앱의 품질이 유료앱의 구매의도에 미치는 영향에 관한 연구

이종옥(Jong-Ok, Lee),민금영(Geum-Young, Min),정민호(Min-Ho, Jeong) 대한경영학회 2013 大韓經營學會誌 Vol.26 No.12

정지용의 「바다」 연작시에 나타난 수(水)의 상상력

이종옥(Lee, Jong-Ok) 한국문학회 2011 韓國文學論叢 Vol.59 No.-

본고는 동양사상의 토대를 이루는 음양오행(陰陽五行)사상에 주목하면서 논의를 시작하였다. 이러한 논의를 하게 된 계기는 정지용 시의 특징을 해명하기 위한 각축이 「바다」 시편을 통해 개진되었다할 만큼 중요함에도, 서구적 이론에 편중되어 동양사상적 논의는 찾아보기 어려웠기 때문이다. 정지용이 술회한 바처럼 모더니즘시의 탄생 과정에서 예술보다 정치적 요인이 크게 작용했다면, 그의 모더니즘 시의 의의는 현저히 약화될 수밖에 없다. 문학작품은 작가가 태어난 사회의 산물이다. 이에 본고는 정지용의 「바다」 연작시를 작가가 태어난 사회의 문화, 전통, 사상에 깊숙이 내재된 음양오행(陰陽五行論)적인 관점에서 논의하였다. 음양오행(陰陽五行)적인 관점은 감정의 절제를 지향하는 동양화론적인 예술론이나 '안으로는 熱하되 밖으로 서늘하옵기' 등 정지용의 시론에 충실한 것이므로 나름대로 의미가 있다. 서구적인 관점에 입각한 논의가 신선한 감각과 회화적 이미지를 잘 보여준다면 동양적인 사상에 입각한 논의는 작품 속에 숨어 있는 작가의 내면세계 즉, 사상을 잘 보여 준다. 정지용의 「바다」 연작시에 나타난 수(水)의 상상력은 그의 내면세계에 있는 존재론적 고뇌의 실체를 구체적으로 들여다 볼 수 있게 해주었다. 「바다」 연작시에 대한 논의 결과, 「바다」 연작시에 나타난 수(水)의 상상력의 핵심은 '음지(陰地)가 양지(陽地)되고 양지(陽地)가 음지(陰地)된다'는 것이다. 이는 음양오행(陰陽五行)사상의 기본원리이며 수(水)의 순환성이다. 여기에 기대어 시인이 말하고자하는 것은 '바다'에 나타난 '생명성 저장'의 이미지나 '기다림'의 이미지에 내포된 소생 가능성 즉 희망이었다. 「바다」 연작시에 나타난 수(水)의 상상력은 연작시를 관통하는 주제인 생명소생, 즉 희망을 부각시킴으로써 소묘적인 회화성 속에 내재된 정지용의 현실인식 혹은 현실에 대한 대응방법을 구체적으로 보여주었다. 「바다」 연작시에서 화자의 시선이 줄곧 내면을 향해 있기 때문에 만해, 상화, 육사처럼 강렬한 현실인식을 밖으로 드러내지는 않았으나 생명 소생의 필연성을 통하여 희망을 암시하였다는 점에서 의의가 있다. 「바다」 연작시에 나타난 수(水)의 상상력은 존재론적 고뇌의 과정한 가운데 펼쳐진 것으로 존재의 안온함이 필연적 귀결이다. 이는 정지용의 내면세계가 지향하는 바는 존재론적 안전감을 누릴 수 있는 삶의 주체'로 거듭나는 것이었음을 보여주는 것이다. 아울러 수(水)의 상상력은 후기 '산시편'으로 나아가는 첩경이 되는 것임을 보여주었다. '바다'에서 '산'으로 공간은 이동되었지만 본질적으로 같은 사상을 공유하고 있었던 것이다. This piece of writing began its discussion as focusing on an idea of Yin-Yang Five Elements (陰陽五行) that form a foundation of Orientalism. The reason for such discussion is that it is difficult to find oriental discussions about competitions to explain characteristics of poetry by Jeong Ji-Yong although they are important as much as to be expressed through poetry because its is concentrated on western ideas or theories. If political factors rather than art were applied in the birth process of Modernism poetry as Jeong Ji-Yong speaks, then the meaning of Modernism poetry in his work has no option but to be weakened. Literary works are the fruits of a society where the writer was born. This paper discussed about poetry series 「Ocean」 by Jeong Ji-Yong in the Yin-Yang Five Elements (陰陽五行論) perspective that is deeply inherited in culture, tradition, and idea of a society where the writer was born. The Yin-Yang Five Elements perspective an orientalism art theory that aims moderation of emotion, but it has significance as being faithful to poetics of Jeong Ji-Yong in connection with 'passionate on the inside but cool on the outside. If discussions based on western ideas or theories show a fresh sense and a pictorial image then discussions based on oriental ideas reveal the inner world of the writer, in other words philosophy, that is hidden under the work. Imagination of water expressed in poetry series 「Ocean」 of Jeong Ji-Yong allows to look into true nature of ontological agony inherent in his inner world. As a result of discussing poetry series 「Ocean」 by Jeong Ji-Yong, the key of imagination of water in poetry series 「Ocean」 is that 'shade become light and light becomes shade'. It is the fundamental principle of Yin-Yang Five Elements (陰陽五行) and also circulativity of water (水). What the poet wanted to speak was possibility of revival, hope, that is involved in the image of liveliness preservation or the image of waiting appeared in 'ocean'. Imagination of water presented in poetry series 「Ocean」 displayed Jeong Ji-Yong's perception on reality underlying in delineative pictorialization or corresponding measures against reality by emphasizing revival of life, which is hope, that penetrates the whole poetry series. It is important that it suggested hope thorugh inevitability of life revival even through strong perception on reality as Manhae, Sanghwa, and Yuksa is not revealed on the outside because the narrator's eyes are facing the inner side. Imagination appeared in poetry series 「Ocean」 is spread in the middle of process of ontological anguish, and peace of existence is an inescapable consequence. This shows the inner world of Jeong Ji-Yong was reforming as a main agent of life to enjoy an ontological sense of security. In addition, internal agony in poetry series 「Ocean」 became a shortcut to step forward to the following mountain poetry. Space has been moved to a 'mountain' to the 'ocean', but it essentially shares same idea. Lastly, this writing hopes that analysis on poetry 「Ocean」 can imply context with the latter poetries or become an opportunity to expand understanding on the path of Jeong Ji-Yong's poetries.

역량기반 교육모델 관점의 플립수업 성과에 관한 연구

이종옥 ( Jong Ok Lee ),김인근 ( In Gun Kim ) 경북대학교 중등교육연구소 2015 중등교육연구 Vol.63 No.4

본 연구는 최근 우리나라의 중등교육과정에서 실험적으로 실시되고 있는 플립수업 또는 거꾸로 수업에 대한 수요자 관점의 실증분석을 통해 그 성과를 분석하여 제시함으로써 플립수업에 대한 이론적 근거를 제시하고자 하는 목적으로 수행되었으며, 플립수업을 실시하고 있는 중학교 수학교과의 수강생 232명을 설문조사하였다. 플립수업의 변인으로는 모둠별 토론학습과 학습자중심문화 및 비디오사전학습을, 학습자 특성에 대해서는 학습에 대한 책임감 및 상호작용역량을 변인으로 설정하였다. 플립수업의 교육적 성과는 의사소통역량과 수업에 대한 만족도 및 자기효능감 등의 정의적 영역으로 측정하였는데, 플립수업에 있어서의 의사소통역량이 수업에 대한 만족도 및 자기효능감의 매개적 역할을 하는 것으로 나타났다. 본 연구 결과 플립수업의 비디오사전학습 변인과 학습자특성의 학습에 대한 책임감 변인은 의사소통역량에 영향을 미치지 않은 반면, 플립수업의 모둠별 토론학습과 학습자중심 문화 및 학습자의 상호작용역량은 의사소통역량을 통해 플립수업에 대한 만족도 및 자기효능감에 유의미한 영향을 미치는 것으로 조사되었다. The main purpose of this research is to provide the theoretical rationale of the flipped class that is being carried out experimentally in middle schools in Korea. The study was conducted with 232 students in the flipped math classes in one middle school located in Gyeonggi-do. Cooperative learning, student-centered culture, and pre-training by video, and responsibility of self-directed learning and relational-oriented interaction ability are chosen for variables on the flipped class and the learner`s characteristics, respectively. The competency on communications, satisfaction on the flipped class, and self-efficacy are selected to measure the affective educational performance of the flipped class. The result are as follows. The competency on communications was found as a mediator to satisfaction and efficacy, pre-training by video and responsibility of self-directed learning are not affect statistically on competency on communications. But cooperative learning, student-centered culture, and relational-oriented interaction ability are found as important variables affecting on satisfaction and efficacy through competency on communications.