http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
잎새버섯(Grifola frondosa)의 균사체와 다당류 생산을 위한 최적 배양조건
전한울 외 순천향대학교 기초과학연구소 2011 순천향자연과학연구 논문집 Vol.17 No.2
The influences of pH and medium composition on mycelial growth and exopolysaccharide (EPS) production of Grifola frondosa were investigated in shake flasks. The optimal initial pH for mycelial growth and ESP production were found to be 4.0. The optimal carbon and nitrogen sources were brown sugar (0.33 g/100 ㎖) and skim milk(0.52 g/100 ㎖), respectively. Under the optimized conditions, a mycelial biomass of 0.65 g/100 ㎖ and an EPS yields of 0.075 g/100 ㎖ were obtained in 7 days. The results strongly suggest that EPS production from G. frondosa is growth-associated. After submerged culture in optimal culture medium, the polysaccharide from the culture broth were extracted and purified from mycelial culture broth by ethanol precipitation method. In vitro cytotoxicity tests, crude polysaccharide were not cytotoxic against macrophage cell line, such as Raw 264.7 at the concentration of 10 ug/㎖. EtOH extracted-polysaccharide generated 24.6 uM of nitric oxide (NO) when cultured with Raw 264.7 cell at the concentration of 1 ug/㎖. Therefore, the results suggest that G. frondosa-derived β-glucan from new synthetic medium (LBL) may exert its immunostimulating activities with similar potency to LPS.
Determination of Cu site in L10-FePtCu alloy using ALCHEMI method
Han Wool Ryu 한양대학교 세라믹연구소 2014 Journal of Ceramic Processing Research Vol.15 No.6
The Cu site in L10-ordered ternary FePtCu alloy was quantitatively determined using atom location by channeling enhanced microanalysis (ALCHEMI). The lattice parameter measured by XRD result was a = 0.388 ± 0.0003 nm and c = 0.369 ± 0.0009 nm with an axial ratio c/a of 0.951 ± 0.0003 for ternary L10-ordered FePtCu phase. The alloy composition of bulk ternary L10- ordered FePtCu phase was Fe40Pt50.4Cu9.6 measured by inductively coupled plasma atomic emission spectrometer (ICP-AES). The ALCHEMI result obtained from calculation of the characteristic X-ray spectra demonstrates Cu almost occupies the Fe site in ternary L10-ordered FePtCu alloy.
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.