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최광윤 ( Kwang Yun Choi ),김진강 ( Jin Gang Kim ),최문영 ( Moon Young Choi ),김미경 ( Mi Kyeong Kim ),이휘진 ( Hw Ijin Lee ),정유진 ( Yu Jin Jung ),이건희 ( Geon Hee Lee ),박미림 ( Mi Rim Park ),권민정 ( Min Jung Kwon ),양명은 ( M 대한통합의학회 2013 대한통합의학회지 Vol.1 No.1
The purpose of this study was to research the effects of exercise programs on genu varum persons` distance of between two legs. Method 40 persons who had genu varum were participated in this research. Randomly, among 30 were allocated in experimental group and others were allocated in control group. Stretching exercises, bend exercises and joint mobilization were applied to the experimental group for 6 weeks. For the statistical analysis, we used the independent t-test and the paired t-test. Result Stretching exercises, bend exercises and joint mobilization had statistically effects on distance of knees with gathering legs, distance of knees, distance of malleoluses, differences of distance from between malleoluses to between knees by GPS. Stretching exercises, bend exercises and joint mobilization had statistically effects on distance of knees, distance of malleoluses by ruler. Conclusion Therefore, this study showed that stretching exercises, bend exercises and joint mobilization influenced on the change of genu varum.
최광윤,배수환,정재동,김한철,최영화 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
The purpose of this experiment is an experimental study on recycling of waste concrete and suggest a possibility of the Recycled Aggregate Concrete after establishing some kinds of experimental properties of concrete. Therefore, this study compared and investigated properties of natural aggregate concrete and recycled aggregate concrete by replacing the ratio of recycled aggregates under the absorptions, compressive strengths and chemical resistances. As the result, the compressive strength and the chemical resistance of Recycled Aggregate Concrete is lower than the natural aggregate concrete. If was concluded that the properties of the recycled aggregates and lower than natural aggregates.
최광윤,김형종,박규정,김정호,한승조 조선대학교 전자정보통신연구소 1998 電子情報通信硏究所論文誌 Vol.1 No.1
We could design in this paper DES(Data Encryption Standard) algorithm which is regarded as a standard of encryption algorithm by VHDL(VHSIC Hardware Description Language) that is a system designable description language and synthesize a chip. Thus we could compute the size and speed of the hardware. We could execute in this paper 16-round iterations of a simple-round processor and design it to apply DES simple-round and implement it by Xilinx's FPGA. We could execute in this paper the simulation of DES which have designed simple-round iterative method by V-system. After synthesis of chip with using of Synopsys' ED-4, we could implement it to XC4025E with using of Xilinx's xdm. As a result of implementation, we could get the encryption and decryption speed of 133.3h4bps at the input clock frequency of 66MHz.
자극제 사용 미분쇄 플라이애쉬 모르타르의 강도증진에 관한 실험적 연구
배수환,최광윤,정재동 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
The purpose of this study is for the active use of the fly ash, which is a by-product of the combustion pulverizes coal thermal power plants, it should be used to compensate for the lack of landfill and for conservation of energy as the supplementary cementitious material, and to prove its possibility as the related products of the cement. First of all, the ordinary fly ash is ground in a special method and its fineness is controlled from 4000cm²/g to 6000 cm²/g, then replaced it with the 20% to 80% of the cement mortar to test of the physical properties. The first experiment is about the slow development of the strength of the fly ash mortar in early ages, and improves its strength with the activator Na2SO4, using a large amount of fly ash. On the other hand, in case of adding activator with steam curing, it rather shows the decrease of strength. This is that it needs to consider the influence by high temperature.