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Copper Alloy Metal Fiber를 이용한 Heat pipe 표면의 스케일 제거에 관한 연구
이상호(Sang Ho Lee),김은희(Eun Hee Kim),김종화(Jong Hwa Kim),송주영(Ju Yeong Song) 한국유화학회 2008 한국응용과학기술학회지 Vol.26 No.4
This paper is a new method for prevent. The particulate scale. stero-microscope were used for the scale removal experiment to improve mineralogical characteristics and the reduction of scales in heat pipe. Generally, the scale in the heat pipe consists of calcium carbonate minerals, such as calcite and aragonite which are precipitated by the reaction of Ca and CO2 in the water. Copper alloy metal could eliminate the scale and prevent the production of scale in the heat pipe.
흰쥐의 전뇌허혈 후 재관류 시 운동치료에 의한 신경영양성인자 발현
구상훈,송주영,권영실,남기원,송주민,이윤섭,최진호,김진상,Gu, Sang-Hun,Song, Ju-Young,Kown, Young-Shil,Nam, Ki-Won,Song, Ju-Min,Lee, Yun-Seob,Choi, Jin-Ho,Kim, Jin-Sang 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.2
This study was performed to investigate the effect of therapeutic exercise on brain-derived neurotrophic factor manifestation after global brain ischemia in rats. Nine rats with global ischemia were divided at random into two group. In the control group, three rats remained in cage. But, in the end, two rats were alive. In the therapeutic exercise group, six rats remained. The five rats of this group was swam for 30 minutes everyday for a week. The brain-derived neurotrophic factor expression was identified from immunohistochemistry. The results of this study were as follows : 1. In the control group, a little expression of brain-derived neurotrophic factor was observed at cortex and hippocampus layer, but cell body and axon was observed obscurely. 2. In the experimental group, a much expression of brain-derived neurotrophic factor was observed at cortex and hippocampus layer, and cell body and axon was observed clearly. In the neurological examination(beam-walking test). experimental group was obtained higher 1.4 points than control group. BDNF expression was increased by swimming for 30 minutes everyday for a week. Therefore, therapeutic exercise contribute to brain plasticity after brain ischemia.
무지외반이 족관절 저굴근과 배굴근의 우력에 미치는 영향
이윤섭,권영실,송주영,남기원,송주민,구상훈,최현임,최진호,김진상,Lee, Yun-Seob,Kown, Young-Shil,Song, Ju-Young,Nam, Ki-Won,Song, Ju-Min,Gu, Sang-Hun,Choi, Hyun-Im,Choi, Jin-Ho,Kim, Jin-Sang 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.2
The purpose of this study was to find out the effects of hallux valgus on the ankle plantarflexor and dorsiflexor peak torque, on the total work, on the average power, and on the Peak torque of plantarflexor to dorsiflexor ratio values. Isokinetic ankle plantarflexor and dorsiflexor strength was evaluated in 30 women(control: 15, hallux valgus: 15) by Cybex NORM System. Test data was gathered in the right ankle at a speed of 60/sec, 90/sec, 120/sec in the control group and the hallux valgus group. Statistical analysis was performed using SPSS 10.0 for windows software. Mean and standard deviations were measured and calculated for the General characterristic of subjects. A paired t-test was used to examine the differnces in the means for the ankle plantarflexor and dorsiflexor between two groups. Pearson coefficient correlation was used to examine the correlation of the hallux valgus and the peak torque. Analysis of variance indicated that isokinetic values of the control group were greater than the hallux valgus group(p<.05, p<.01).