Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Yuguo Fan"'
Autor:
Aijun Li, Ze Shi, Yuzhong Yin, Yuguo Fan, Zhiyi Zhang, Xiaomeng Tian, Yonggui Yang, Lingwu Pan
Publikováno v:
Ecological Indicators, Vol 154, Iss , Pp 110477- (2023)
In recent years, the pH of some oligotrophic natural freshwater lakes in the subtropical monsoon climate region has generally reached an extremely high level of approximately 9.0 during the summer and autumn. It has not been proven that the explanati
Externí odkaz:
https://doaj.org/article/7c97fe2025ec4529b87eade76d4a6568
Autor:
Yuguo Fan
Publikováno v:
Frontiers in Psychology, Vol 13 (2022)
This review strives to illuminate the related studies on the effect of English as a Foreign Language (EFL) teachers’ positive and negative emotions on their work engagement. The negative correlations among teachers’ boredom, apprehension, shame,
Externí odkaz:
https://doaj.org/article/7c5ab5d71ffc49a782e0908c97f738ec
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :313-317
Ag-coating Au colloidal nanoparticles have been prepared by Ag deposition on Au core via the chemical reduction of AgNO3 by hydroquinone. The thickness of Ag shell depends on the Au–Ag molar ratio and the reducing time, which were monitored by the
Publikováno v:
Journal of Molecular Structure. 660:119-129
A series of co-crystals of azaaromatic molecule with the present of dicarboxylic acid, [SA·BPE], [FA·AZP], [AA·BPE], [AA·AZP], [SEA·AZP] and [OA·AZP] (BPE=1,2-bis(4-pyridyl)ethylene, AZP=azopyridine, SA=succinic acid, FA=fumaric acid, AA=adipic
Publikováno v:
Langmuir. 18:6839-6844
Silver colloids are one of the extensively employed surface-enhanced Raman scattering (SERS) active substrates. To obtain the SERS effect, their aggregation upon addition of analyte is necessary. However, problems of instability and irreproducibility
Publikováno v:
The Journal of Physical Chemistry B. 106:6500-6506
In this paper, we propose a novel technique for the fabrication of active substrates of surface-enhanced Raman scattering (SERS). It was found that the silver particles themselves and the analyte-covered silver particles can be trapped at the air−w
Publikováno v:
Thin Solid Films. 397:95-101
A series of sol–gel-derived silica films are prepared by co-condensation of vinyltrimethoxysilane (VTMOS) and tetraethoxylsilane (TEOS) with various feeding molar ratios of VTMOS to TEOS under the acid-catalyzing conditions. Significant improvement
Autor:
Xiaolong Xu, Jun Yu, Weiming Bu, Qingliang Liu, Yongshu Xie, Yuguo Fan, Albert S. C. Chan, Zude Zhang
Publikováno v:
Inorganica Chimica Acta. 310:257-260
Hsalea (N-(2-hydroxybenzyl)-2-amino-1-ethanol) and its Cu(II) complexes, Cu(salea)2 (1) and CuH−1(salea)·1.5H2O (2), were prepared and characterized. X-ray structural analyses of 1 show that two amino N and two deprotonated phenoxy O atoms of the
Publikováno v:
Materials Science and Engineering: C. 10:3-6
Near-infrared surface-enhanced Raman spectroscopy was applied to the investigation of 4,4′-bipyridine, 4,4′-azopyridine, bissalicylaldehydeethylenediimine Co(II) and Ni(II) (abbreviated as Salen-Co and Salen-Ni, respectively) as mono- and alterna
Publikováno v:
Macromolecular Chemistry and Physics. 200:1523-1527
SUMMARY: Poly(4-vinylpyridine) bearing an osmium complex was alternately assembled with poly(acrylic acid) on a gold substrate via hydrogen bonding. UV-Vis spectra were used to monitor the assembling process. X-ray diffraction patterns and AFM images