• 한국진공학회:학술대회논문집
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• 한국진공학회 2009년도 제36회 동계학술대회 초록집
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• pp.238.2-238.2
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• 2009

• E2M - 전기 전자와 첨단 소재
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• 제21권4호
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• pp.13-20
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• 2008

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.47-48
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• 2005

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2019년도 춘계학술논문요약집
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• pp.269-270
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• 2019

• 동력기계공학회지
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• 제20권6호
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• pp.40-45
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• 2016

The manufacturing process of large scaled Al 7050 alloy is difficult for the occurrence of solidification crack during casting. The aims of this study are the evaluations of microstructure and mechanical properties of extruded Al 7050 billet and ring forged one with large scale. Large scaled Al 7050 billet was casted by direct-chill casting process. The extruded and ring forged specimens were prepared from the casted ingot after residual stress relief and homogenization heat treatment, respectively. Microstructures, hardness and tensile test of the surface, middle and center part of each specimen were performed at room temperature. Sheared and elongated type grains were observed at the edge parts of surface and center area and its aspect ratios of grains were low and similar as 0.21 while that of middle area was closed to 0.92 value in ring forged Al 7050 alloy. The mechanical properties of extruded Al 7050 alloy were superior than those of ring forged one. The hardness values of surface and center part were slightly higher than that of middle part in ring forged Al 7050 alloy.

• Journal of Acupuncture Research
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• 제19권5호
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• pp.35-45
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• 2002

Objective : The aim of this study was to investigate the effect of tong's acupuncture on recovery of motor disorders in stroke patients. Methods : Twenty two patients with poststroke-hemiplegia were randomized into two groups. Ten patients(test group) treated by 2 methods-tong's acupuncture and body acupuncture. The other twelve patients(control group) treated only by body acupuncture. The activity of daily living was measured with a National Institutes of Health stroke scale(NlHSS) and Modified Barthel Index(MBI). The therapy was performed one a day for 2 weeks. Results: In terms of score of NIHSS. the test group showed statistically meaningful decrease after 2 week treatment. but the control group showed statistically meaningful decrease after I week(p<0.05). And in terms of score of MBI. the test group showed statistically meaningful increase after 2 week treatment. but the control group showed statistically meaningful increase after I week(p<0.05). There was no statistically meaningful difference after 1 and 2 week treatment between the groups. Conclusions: These results support that test group has almost same effectness compared with control group in improvement of the activity of daily living of poststroke-hemiplegic patients.

• Journal of Acupuncture Research
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• 제19권5호
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• pp.28-34
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• 2002

Objective : The aim of this research was to investigate the depressive effect of acupuncture on Gangap-point and depletion on Taech'u-point in stroke patients. Methods : We measured the blood pressure of the patients who were admitted in the Oriental Medical hopital of Dongeui medical center from 21. Oct. 2001. to 20. Jan. 2002. 19 stroke patients were devided into two groups. 12 patients were treated by acupunctured on Gangap-point. The other 7 patients were treated by depletion on Taech'u-point. The activity of daily living was measured. If systolic blood pressure was over 160 mmHg or diastolic blood pressure was over 90 mmHg, acupunctured on Gangap-point and depletion on Taech'u-point were performed. Then 30minutes and 60minutes later, systolic, diastolic blood pressure and pulse rates were measured Results : After 30 minute treatment. both acupuncture on Gnagap-point and depletion on Taech'u-point significantly depressed the systolic blood pressure. After 60 minute treatment. only depletion on Taech'u-point were statistically significant in depressing the systolic blood pressure. Pulse rates were not significantly changed. Conclusion : These results suggest that depletion on Taech'u-point is more effective in depressing the systolic blood pressure than acupuncture on Gnagap-point.

• 한국수산과학회지
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• 제49권5호
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• pp.678-682
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• 2016

Antibacterial activity of 80% methanol extract from 13 commercial herb medicines was measured against fish pathogens Streptococcus iniae, causing several diseases in various kind of fish. Siegesbeckia pubescens showed the strongest antibacterial activity against S. iniae. Methanol extract of S. pubescens was further extracted using several organic solvents having different polarity. Extract from n-hexane and ethyl acetate fraction showed strong activity. Minimal inhibitory concentration, MIC of S. pubescens extract was measured and resulted showing 8 μg/mL with n-hexane fraction and 32 μg/mL with ethyl acetate fraction against S. iniae. The growth of S. iniae was fully inhibited by adding 50 μg/mL (final concentration) of n-hexane or ethyl acetate fraction in the liquid media. It is needed that, from these results, purification and isolation of responsible active compound(s) of these activities and further study on the synergy effect using combination with commercial antibiotics against fish pathogenic bacteria.

• Journal of Acupuncture Research
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• 제19권2호
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• pp.201-210
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• 2002

Objective : The aim of this study was to assess the effects of admission care on Bell's palsy by case control study. Method : 27 patients who diagnosed as Bell's palsy were shared 13 inpatients group treated by early admission care, and 14 outpatients group. They were equally treated with acupuncture, herb medicine and western medicine. The groups were evaluated by Yanagihara,s unweighted grading system at pre-treatment, after 5 days, after 10 days and after 15 days. Results : The Yanagihara,s scores of 2 groups showed stastically significant improvement in comparison with pre-treatment. In improvement index after treatment, the Yanagihara,s scores of 2 groups increased but were not stastically significant the difference. Conclusion : These results provided that the admission care may not be a valuable treatment for Bell's palsy. Further study is needed to evaluate the effect of early admission care on Bell's palsy.

• 대한약침학회지
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• 제4권2호
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• pp.17-25
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• 2001

By process of treatment for a case which diagnosed as HNP of left posterolateral aspect of L4/5 disc and treated from the 10th, May 2001 to the 23rd, Jun 2001, the results are as follows. Method & Results : This patient was medicated Hwallaktang-gami, taken acupuncture, phototherapy, TENS, electric acupuncture, exercises, Mori Cortex-bee venom acupuncture. As a result, the patient's clinical symptom were improved but a computed tomagraphy confirmed L4/5 and L5/S1 HNP was not changed as seen on repeated CT scanning. Conclusion : These results suggest that among conservative therapies the oriental medical treatments including Mori Cortex-bee venom acupuncture improve clinical symptom effectively. But in this case, the structure of herniated disc was not changed.