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金永起 이화여자대학교 한국문화연구원 1986 韓國文化硏究院 論叢 Vol.51 No.-
On the basis of the relationship between concept in basic design and physics. This study attempt that in principle of basic design as scientific approach, an variety of concept is possible, as a result of the combination at a relatively principle concept at basic design and physics. This study provide an orderly arrangement at a factor to be considered in solving basic design problems. The basic concept of design study into conceptual separately through principles concept of ENTROPY UNCERTAINTY and RELATIVITY. Each concept of physics is only verbal suggestion without visual configuration, and the interpretation of verbal and non-verbal image attempt on experimental study through my lecture.
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고유동 일반강도 콘크리트의 요변성 부여에 따른 거푸집 누출 저감 성능 분석
김영기,이유정,김인태,한동엽,Kim, Young-Ki,Lee, Yu-Jeong,Kim, In-Tae,Han, Dong-Yeop 한국건축시공학회 2023 한국건축시공학회지 Vol.23 No.4
The central objective of this study is to curtail the leakage of mortar or cement paste, often resultant of ill-constructed formwork, by implementing thixotropy in the formulation of high-fluidity, standard-strength concrete. When such concrete is utilized in smaller scale construction projects, instances of formwork gaps due to suboptimal construction precision may lead to significant leakage of mortar and paste, a problem not typically encountered with traditional slump-flow concrete. In this investigation, Polyvinyl Alcohol(PVA) and borax are incorporated into the concrete mixture to induce thixotropy. The experimental design includes varying methodologies for integrating PVA and borax, while assessing alterations in diverse concrete performances, including thixotropy and leakage reduction potential that simulates formwork gap conditions. Under the experimental conditions defined within this study, it was found that replacing, rather than merely adding PVA and borax, aids in averting water addition via suspensions. This approach yielded promising results in terms of concrete properties and proved efficacious in stemming leakage in concrete possessing sufficient thixotropy. Notably, when a 6% PVA suspension was substituted, a significant reduction in leakage was observed. Consequently, it is projected that construction quality can be ensured, even with lower precision formwork, by applying thixotropy to concrete through the use of PVA and borax.
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김영기,박성택,이승준,Kim, Young-Ki,Park, Seong-Taek,Lee, Seung-Jun 한국디지털정책학회 2008 디지털융복합연구 Vol.6 No.2
The remarkable growth of the Internet since mid-l990s has expanded the e-learning market and brought the transformation of educational environments and methodology. It can be said that the e-learning has changed the educational paradigm. Korean government is firmly determined to support the diffusion of e-learning because of the benefits of e-learning. People seem to accept the e-learning when its contents have high quality. A lot of research have been conducted on e-learning, however, it was mostly about user's usage intention, satisfaction and educational effect. It can't seem that sufficient research efforts have been put into figuring out the role of e-learning contents quality in the expansion of e-learning. In this paper, we present the empirical study on the influence of e-learning contents quality on user's satisfaction and educational effect. We conducted an questionnaire survey on college students to collect data and found that the quality of e-learning contents has significant influence on the users' satisfaction.
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소아 삼출성 중이염이 약물 치료에 영향을 미치는 인자에 관한 연구
김영기,정현수,함태영 인제대학교 1994 仁濟醫學 Vol.15 No.2
삼출성 중이염의 예후와 관련된 인자를 알아보기 위하여 외래를 방문한 51명의 환자를 대상으로 난치성과 관련이 있는 요인을 조사해 본 결과, 과거의 중이수술 유무, 동반된 부비동염 등이 약물 치료에 대한 반응의 중요한 예후인자라고 생각되었다. It has been clarified that multiple factors are implicated in the otitis media with effusion which is common in children. This prospective study was performed to evaluate the factors related to the prognosis of the otitis media with effusion. History, physical examination, impedance audiometry, and radiologic examination were taken. Oral antibiotics (Augmentin or cefixime) were given to all patients orally for 3 months. Myringotomy and V -tube insertion was done in the patients who had no response after 3 months of medication. The factors implicated in the prognosis of otitis media with effusion were analysed. The significant risk factors were present inthose wish previous myringotomy or V-tube insertion, presence of mucopurulent rhinorrhea and total hazziness on PNS X-rays, but not to adenoid vegetaton, eardrum retraction, age, sex, bilaterality and presence of recurrence. Therefore, the presence of previous middle ear surgery and concomitant sinusitis were important prognostic factors in treatment of the otitis media with effusion medically.
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