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성재형,김옥진 漢陽大學校 體育科學硏究所 1994 體育科學 Vol.14 No.14
Followings are summaries of test results done on ten univeristy women majoring in Korean dancing at H and S universities with daucing experience of more than five years to evaluate anaerobic and aerobic power of Korean dancers using wingate test and gradually incresasing load method. 1. Korean dancer's anaerobic power parameters of peak power(W peak power), mean power(W mean power), and Fatigue Index were found to be 303.5+25.56 watt, 238.9+22.57 watt and 34.5+3.98% resoectuvety. 2. Korean daucer's aerobic power parameters of maximum oxygen absorption amount(VO_(2) max), anaerobic reverse level, lactase concentration accumulation in blood, and maximum heart pulse number were found to be 39.3+4.12㎖/㎏/min, 54.5+3.78%,8.3+1.79㎜ and 193.5+7.42beat /min. Above result shows that Korean dancer's auaerobic and aerobic power level is lower than that of other sports players and similar to that of common people and this resulted from long-term Korean dancing training concentrated on technies and action expression rather than on athletic power. However, as action performing in Korean dancing requires medium level athletic power to express work and static action expression also requires high concentration and athletic powers so training to intensify anaerobic and aerobic athletic ability is serionsly required for the consistent superior action performance and expression during the entire work performing duration.
입상활성탄에 의한 Cu, Zn, Cd 이온의 흡착 특성
옥삼복,정용준,정승원,강운석 한국환경과학회 2002 한국환경과학회지 Vol.11 No.4
In this work, the characterization of adsorption of Cu, Zn and Cd on granular activated carbon in water has been studied. The factors that affect adsorption in boundary between activated carbon and wastewater are concentration, temperature, contact time, pH and so on. As the result of this study, the maximum adsorption amount of Cu occurred near pH 7, while that of Zn and Cd was near pH 9.6 and 10, respectively. As contact time and temperature are transformed, such factors as optimum contact time and temperature are taken into consideration in an adsorptive process of heavy metal because an adsorption and a reducing process occur. In isotherm of Freundlich, 1/n values of Cu, Cd capacity were between 0.16 and 0.5.
방사선 조사 건고사리의 수화 복원성, 색상 및 조직감 특성
성태화,허옥순,김미리 동아시아식생활학회 2005 동아시아식생활학회지 Vol.15 No.1
The gamma irradiation effect of dried fernbraken was investigated on the physical and sensory qualities during and after soaking process. Dried fernbraken packaged in vacuum was irradiated up to 7 kGy with γ-ray produced by 132 Cs at 0℃. Moisture content and rehydration rate of gamma-irradiated fernbraken after soaking increased significantly depending on the irradiation doses(p<0.05). Lightness(L), redness(a) and yellowness(b) values of Hunter color system increased significantly in the gamma-irradiated fernbraken after soaking, compared with control, while the hardness and chewiness by the texture analyser decreased significantly in irradiated ones. Sensory evaluation results showed that the mean scores of flavor, appearance, taste, texture and over-all acceptability in soaked fernbraken irradiated were not significantly different from those in control, except higher preference score of texture in irradiated ones. From these results, it might be concluded that the irradiation does not affect the physical and sensory qualities of dried fembraken during and after soaking, especially in texture.
성덕경,방경윤,오영륙,최은호,안일신,김옥경 한양대학교 이학기술연구소 2003 이학기술연구지 Vol.6 No.-
Spectroscopic ellipsometry 은 다양한 물질의 광학적 특징을 연구할 수 있는 강력한 기술이다. 현재 실리콘 웨이퍼 위의 박막 분석에는 그 효율성이 확실히 입증되어 있다. 그러나 현재 산업은 유리 기판위의 박막을 분석하기를 원하고 있다. Ellipsometry로 투명기판을 분석하기 위해서는 후면 반사에의한 비간섭성 효과를 고려해야 한다. 기존의 반사공식을 투명기판의 비간섭성을 고려하여 수정하였다. 투명기판 위의 샘플과 scratch를 낸 같은 샘플을 측정 분석하여 정확성을 확인하였다. 수정된 반사공식을 이용하면 디스플레이와 같은 투명재료를 이용하는 곳에 유용하게 사용될 것으로 기대되고 있다. A Spectroscpic ellipsometry is very strong technology to study optical properties of many materials. It has already substantiated a analytic efficiency about thin films above wafers to be made of silicon. However, the current industry needs thin films analyzed on a glass. When we analyze a glass using a ellipsometry, we have to consider a efficiency of incoherence due to reflect at the back side. So then, we slightly altered the original formula. We compared a scratched sample with a sample on the glass, because off getting a exactitude. Our technical development, using the changed formula, is expected the useful utilization in a part of using gIasses such as display.
Wire Saw 슬러리로부터 Si와 SiC의 선택적 회수
한승열,이종대,전진혁,박노국,이태진,류시옥 嶺南大學校 工業技術硏究所 2004 工業技術硏究所論文集 Vol.32 No.1
This study was focused on the recovery of Si and SiC from wire saw slurry in wire saw slicing process. In order to separate Si and SiC from wire saw slurry, alkali dissolution method was used and then Na₂O showed superior dissolution property of Si. At this time, SiC was separated as powder from alkali aqueous solution. Si was dissolved as a liquid in alkali aqueous solution. After removing SiC powder, the powder was obtained by drying alkali aqueous solution and then it's XRD analysis showed that it was the water glass (Na₂SiO₃).
유아교육과정의 포스트모더니즘 관점에서 본 멀티미디어의 활용 탐색
양옥승,강현미,나은숙 덕성여자대학교 2006 德成女大論文集 Vol.35 No.-
The utilization of multi-media to deliver education content has been rapidly increasing recently in early childhood education institutions. However, in many cases multi-media is used as classroom tools without thorough review of their educational function and possible problems. According to Grundy(1991), the use of any medium in a curriculum should not be accepted without critical review. In addition, the medium should also be assessed as an area of overall curriculum development. Accordingly, this research studies the utilization of multi-media from a postmodern perspective of the early childhood curriculum. It emphasizes the following points: First, multi-media should deliver content that pursues diversity and multiplicity considering the socio-cultural context of the learners. Second, multi-media should be used for not only individual activities but also collaborative work to promote interaction. Third, multi-media should be capable of encouraging the active participation of the learners. In conclusion, this research suggests that the use of multi-media in early childhood education institutions is significant not only as an additional teaching tool but also as the means to enable new approaches to early childhood education curriculum.