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Your search keyword '"LIU Yang-yang"' showing total 43 results
Start Over Author "LIU Yang-yang" Publisher elsevier bv
43 results on '"LIU Yang-yang"'

12. Jujuboside A ameliorates tubulointerstitial fibrosis in diabetic mice through down-regulating the YY1/TGF-β1 signaling pathway

Author

LIU, Yang-Yang, primary, LI, Lin, additional, JI, Bei, additional, HAO, Shi-Long, additional, KUANG, Xiao-Feng, additional, CAO, Xin-Yun, additional, YUAN, Jia-Yu, additional, JIANG, Zhen-Zhou, additional, QIAN, Si-Tong, additional, WEI, Chu-Jing, additional, XU, Jing, additional, YIN, Xiao-Xing, additional, LU, Qian, additional, and YANG, Ting-Ting, additional

Published
2022
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13. Discovery of potent immune-modulating molecule taccaoside A against cancers from structures-active relationships of natural steroidal saponins

Author

Dai, Zhi, primary, Zhu, Pei-Feng, additional, Liu, Hui, additional, Li, Xuan-Chen, additional, Zhu, Yan-Yan, additional, Liu, Yang-Yang, additional, Shi, Xiao-Long, additional, Chen, Wei-Di, additional, Liu, Ya-Ping, additional, Zhao, Yun-li, additional, Zhao, Li-Xing, additional, Liu, Hai-Yang, additional, and Luo, Xiao-Dong, additional

Published
2022
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14. Dissecting the genetic basis of maize deep-sowing tolerance by combining association mapping and gene expression analysis

Author

YANG, Yue, primary, MA, Yu-ting, additional, LIU, Yang-yang, additional, LYLE, Demar, additional, LI, Dong-dong, additional, WANG, Ping-xi, additional, XU, Jia-liang, additional, ZHEN, Si-han, additional, LU, Jia-wen, additional, PENG, Yun-ling, additional, CUI, Yu, additional, FU, Jun-jie, additional, DU, Wan-li, additional, ZHANG, Hong-wei, additional, and WANG, Jian-hua, additional

Published
2022
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22. Effects of four drying methods on Ganoderma lucidum volatile organic compounds analyzed via headspace solid-phase microextraction and comprehensive two-dimensional chromatography-time-of-flight mass spectrometry

Author

Yu Zi-wei, Ouyang Hong-jun, Li Yahui, Liu Yi-jun, Qian Yang-yang, Lin Li-jing, Tan Ge, Tu Xing-hao, Chen Fei, Liu Yang-yang, and Shu Bing

Subjects
Chromatography, 010401 analytical chemistry, Alcohol, 02 engineering and technology, 021001 nanoscience & nanotechnology, Mass spectrometry, Solid-phase microextraction, 01 natural sciences, 0104 chemical sciences, Analytical Chemistry, Acetic acid, chemistry.chemical_compound, Freeze-drying, Two-dimensional chromatography, chemistry, Partial least squares regression, Time-of-flight mass spectrometry, 0210 nano-technology, Spectroscopy
Abstract

The effect of four drying methods (namely, sun drying, vacuum freeze drying, vacuum drying, and hot air drying) on the fresh Ganoderma lucidum volatile organic compounds (VOCs) was studied by their separation via headspace solid-phase microextraction and identification via comprehensive two-dimensional chromatography-time-of-flight mass spectrometry. In total, 247 kinds of VOCs, mainly composed of alcohols, aldehydes, esters, ketones, and olefins, were identified. Orthogonal partial least squares discriminant analysis and displacement test combined with the variable important in the projection method revealed that VOCs' types and contents in Ganoderma lucidum were influenced by the particular drying method, which could be identified using specific organic compounds. The heating process increased the content of aldehydes, esters, and olefins and reduced alcohol and ketones' content. Since 3-propoxy-1-Propene, 2-pentyl-Furan, Acetic acid, 2-Butanone, 1-Pantano, and other VOCs did not disappear during the drying process, they can be used for the classification and identification of Ganoderma lucidum species and other edible fungi.

Published
2021

24. Age and Sr-Nd-Hf isotopes of the sub-continental lithospheric mantle beneath the Cameroon Volcanic Line: Constraints from the Nyos mantle xenoliths

Author

Chuan-Zhou Liu, Xian-Hua Li, Jean Pierre Tchouankoue, and Liu-Yang Yang

Subjects
Basalt, geography, Radiogenic nuclide, geography.geographical_feature_category, 010504 meteorology & atmospheric sciences, Geochemistry, Geology, Crust, 010502 geochemistry & geophysics, 01 natural sciences, Mantle (geology), Craton, Geochemistry and Petrology, Xenolith, Metasomatism, Amphibole, 0105 earth and related environmental sciences
Abstract

To better constrain the age and composition of the sub-continental lithospheric mantle (SCLM) beneath the Cameroon Volcanic Line (CVL), we present Sr-Nd-Hf-Os isotopes of the Nyos mantle xenoliths (nine lherzolites and four harzburgites). The Nyos lherzolites have fertile compositions with 37.69–41.12 wt.% MgO and 2.49–4.38 wt.% Al2O3, whereas the harzburgites are more refractory containing 43.2–45.42 wt.% MgO and 1.43–2.1 wt.% Al2O3. The MgO contents of the Nyos xenoliths overall show negative correlations with CaO, Al2O3, Na2O and TiO2 contents, indicating that they represent mantle residues after melt depletion. Modal minerals like pargasitic amphibole have only been discovered in one Nyos lherzolite, suggesting modal metasomatism locally occurred. Clinopyroxenes in most Nyos xenoliths show enriched trace element compositions, indicating pervasive cryptic metasomatism within the SCLM. Clinopyroxenes in the Nyos lherzolites have less radiogenic Sr and more radiogenic Nd isotopes than the Nyos harzburgites. Clinopyroxene Hf isotopes of the harzburgites are comparable to those of the lherzolites. Although the CVL basalts have similar Sr-Nd isotopes with the Nyos harzburgites, they have different Hf isotopes. Therefore, the CVL basalts could not be sourced solely from the lithospheric mantle. The Nyos lherzolites show consistent HSE patterns, with slight depletion in both Re and Pt over Pd. The harzburgites are remarkably depleted in Pt, Pd and Re relative to Os, Ir and Ru. The Nyos lherzolites have variable 187Os/188Os ratios ranging from 0.11700 to 0.13129, yielding Os model ages (TMA) relative to the primitive upper mantle (PUM) of 0.27–2.18 Ga and Re depletion ages (TRD) of 0.12–1.76 Ga. In comparison, four harzburgites have more unradiogenic 187Os/188Os ratios of 0.11485–0.11705. Three of the four harzburgites with low Re/Os ratios yield similar TMA and TRD ages, i.e., 1.91–2.43 Ga vs. 1.87–2.05 Ga, respectively. The 187Os/188Os ratios of the Nyos xenoliths show a good correlation with bulk Al2O3 contents. An initial 187Os/188Os ratio of 0.11064 can be inferred from the 187Os/188Os-Al2O3 correlation, giving an Archean TRD age of ~ 2.6 Ga. This suggests that the Nyos mantle xenoliths have been subjected to melt depletion events during the Paleoproterozoic convergence of the Congo and West Africa cratons, which formed the lithospheric mantle intruded by the CVL. The SCLM beneath the CVL is coeval with or slightly younger than the charnockite and tonalite-trondhjemite-granodiorite in the Ntem Complex of NW Congo Craton. We proposed that the old SCLM was a part of the Congo cratonic mantle. Therefore, our results suggest that old cratonic mantle beneath the CVL has not been completely removed during the Pan-African Orogeny, although the overlying crust might have been strongly deformed and reworked.

Published
2017

26. Formation of gabbronorites in the Purang ophiolite (SW Tibet) through melting of hydrothermally altered mantle along a detachment fault

Author

Chuan-Zhou Liu, Fu-Yuan Wu, Liang-Liang Zhang, Liu-Yang Yang, Wei-Qiang Ji, and Chang Zhang

Subjects
Peridotite, geography, Incompatible element, geography.geographical_feature_category, Geochemistry, Geology, Massif, Ophiolite, Mantle (geology), Detachment fault, Oceanic core complex, Geochemistry and Petrology, Ultramafic rock
Abstract

The Purang ophiolite tectonically was thrust over an Upper Cretaceous melange south of the Yarlung-Zangbo Suture Zone (YZSZ) in SW Tibet. It comprises a large ultramafic massif of ~ 800 km 2 , but plutonic and volcanic sections are notably absent. The Purang peridotite massif is dominated by harzburgites with minor clinopyroxene-poor lherzolites, which are occasionally intruded by gabbronoritic and basaltic dykes. They are characterized by low Al 2 O 3 and CaO, which can be modeled by ~ 15–25% degrees of isobaric batch melting at a pressure of 20 kbar. Spinel Cr# values give an estimated ~ 12–19% degrees of fractional melting for the Purang peridotites. Clinopyroxenes in Purang peridotites show variable LREE patterns and their HREE contents could be reproduced by ~ 10–16% degrees of fractional melting from a depleted mantle source. The Purang gabbronorites are olivine-free, with early crystallization of orthopyroxene and clinopyroxene relative to plagioclase. Pyroxenes in gabbronorites have more variable Mg# than those in peridotites. Plagioclases are characterized by very high anorthite contents of 94–99. Mineral compositions suggest that the Purang gabbronorites crystallized from high-silica hydrous melts, which are strongly depleted in incompatible elements. Such hydrous melts could be derived from serpentinized peridotite via melting along a detachment fault at a slow-spreading ridge that was triggered by the upwelling asthenosphere. The detachment fault exhumed the Purang peridotite massif as an oceanic core complex at the seafloor, which was emplaced and preserved in the suture zone. Therefore, we suggest that the Purang ophiolite was formed in the mid-ocean ridge rather than subduction-related settings.

Published
2014

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