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기존 세굴심 산정공식 적용을 위한 모형실험과의 비교 연구
최한규,백효선,정창동 江原大學校 産業技術硏究所 2004 産業技術硏究 Vol.24 No.B
The existing of developed scour Equation have a very different value by boundary condition, hydraulic condition and bed condition. Therefore it may give rise to a serious trouble if it make a wrong application of the scour Equation. So this research of purpose is the predicting of scour depths, the method is that analysis river of feature and hydrauric feature for river in kangwondo young-seo region. And hydrauric model experiment of Scour phenomenon execute after the existing of calculate scour depths equation analysis sensitivity, assort a practical.
[PF-0046] ‘suppressor of dwarf’ enhance fruit harvest and yield traits in Micro-Tom
Hong Kwan Beak(Hong Kwan Beak ),Sujeevan Rajendran(Sujeevan Rajendran ),Seung Han Son(Seung Han Son ),Jung Heo(Jung Heo ),Jong Hyang Bae(Jong Hyang Bae ),Soon Ju Park(Soon Ju Park ) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
Han Wool Lee,Hyoung Jean Beak,Eun-Jung Yoon,김주영 대한운동학회 2021 아시아 운동학 학술지 Vol.23 No.2
[OBJECTIVES] This study aims to investigate the effects of instrument-assisted soft tissue mobilization (IASTM) on ankle range of motion (ROM) and balance in older women. [METHODS] The 20 older women with a history of falls participated in the study, and the study subjects were randomly divided into the IASTM group (n=10) and control group (n=10). [RESULTS] There were no significant interactions between group and time for ankle ROM and functional reach after 8 weeks of IASTM on older women (P>0.05). Meanwhile, there were significant interactions between group and time for one-leg standing and star excursion balance (P<0.05), and in particular, the IASTM group had greater improvements compared to the control group. [CONCLUSION] In conclusion, the regular application of IASTM has been shown to improve the balance of older women with a history of falls.
Determination of Adrenosterone and its Metabolites in Human Urine by LC/APCI/MS and GC/MS
Han, Eun-Jung,Yim, Ok-Kyoung,Beak, Sun-Young,Chung, Jae-Yeon,Lee, Ji-Hye,Kim, Jun-Gahn,Kim, Yun-Je Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.7
This study was done for the determination and excretion profile of adrenosterone and its metabolites in human urine using both liquid chromatography with atmospheric pressure chemical ionization mass spectrometry and gas chromatography with mass spectrometry. Adrenosterone and its two metabolites were detected in human urine after administration a healthy volunteer with 75 mg of adrenosterone. We found that adrenosterone-M1 ($C_{19}H_{26}O_3$) was a reduction and adrenosterone-M2 ($C_{19}H_{26}O_4$) was a hydroxylation at C-ring, which did not know the exact position of the C-ring. The adrenosterone parent was detected by GC/TOF-MS, but not detected by LC/APCI/MS because of low intensity. Adrenosterone and its two metabolites were excreted as their glucuronided fractions. The recovery of this method ranged from 100.7 to 118.4% and the reproducibility and accuracy test were 85.5 to 112.0% and 1.1 to 8.4%, respectively. The excretion studies showed that adrenosterone and its metabolites were detectable in human urine during a 48 h period after oral administration, with maximum level of excretion at 4.1 h. The glucuro-/sulfaconjugated ratio of adrenosterone, M1 and M2 was 0.73 ${\pm}$ 0.03, 0.96 ${\pm}$ 0.06 and 0.89 ${\pm}$ 0.03 (n = 6), respectively. The amounts of adrenosterone excreted in urine were 14.75 ng for 48 h. Also, the maximum level of androsterone and 11$\beta$-hydroxy androsterone, which were endogenous steroids, were reached 4.1 h after the oral administration of adrenosterone.
정진규,백승택,한병문 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-
This paper proposes an SSSC based on 3-level half-bridge inverters. The dynamic characteristic of the proposed SSSC was analyzed by EMTP simulation, assuming that the SSSC is inserted in the transmission line of the one-machine-infinite-bus power system. The proposed SSSC has six 3-level half-bridge inverters per phase, which poperates in PWM mode. The proposed SSSC generates a quasi-sinusoidal output voltage by 90 degree phase shift to the line current. The proposed SSSC does not require the coupling transformer for voltage injection, and has a flexibility in operation voltage by increasing the number of series connection.
삼출건비탕가미방(蔘出健脾湯加味方)이 흰쥐의 성장에 미치는 영향
백정한,구진숙,Beak, Jung-Han,Koo, Jin-Suk 대한한방소아과학회 2006 대한한방소아과학회지 Vol.20 No.1
Objectives : The purpose of this study is to find out the effect of antioxidation related to aging of Cheongeumyeonsudan which is written on Dongui-bogam experimentally. Method : 14 weeks aged SD albino rats were separated into uncontrolled group, controlled group and CGY group. As controlled and CGY groups were induced aging by subcutaneous injection of D-galactose, at the same time we administered the extract of Cheongeumyeonsudan to CGY group for 6 weeks. After then we drew blood from each group, and took measurements; the activity of SOD, GSH-px, catalase in erythrocytes, TBARS value, concentration of total lipid, tryglycende, total cholesterol, HDL-cholesterol in blood plasma. Results : The activities of SOD, GSH-px in erythrocytes were significantly increased in the CGY group compared with control group. The activity of catalase showed a tendency to increase, but it was nor remarkable. The concentration of total lipid, the values of TBARS and total cholesterol was significantly decreased in the CGY group compared with control group, and the concentration of plasma HDL-cholesterol was not remarkable. The concentration of tryglycende in plasma showed a tendency to decreased. Conclusions : it is suggested that Cheongeumyeonsudan decreased the activities of free radical, the concentration of lipid in plasma and generate enzyme which form lipid peroxide.
기존 세굴심 산정공식 적용을 위한 모형실험과의 비교 연구
최한규(Choi Han Kyu),백효선(Beak Hyo Seon),정창동(Jung Chang Dong) 강원대학교 산업기술연구소 2004 産業技術硏究 Vol.24 No.1
The existing of developed scour Equation have a very different value by boundary condition, hydraulic condition and bed condition. Therefore it may give rise to a serious trouble if it make a wrong application of the scour Equation. So this research of purpose is the predicting of scour depths, the method is that analysis river of feature and hydrauric feature for river in kangwondo young-seo region. And hydrauric model experiment of Scour phenomenon execute after the existing of calculate scour depths equation analysis sensitivity, assort a practical.