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4篇 您的检索式:作者名="Gu Fenglei"
    题名 作者 年代 出处 被引量
1Porous Pt nanoframes decorated with Bi(OH)3 as highly efficient and stable electrocatalyst for ethanol oxidation reaction显示文摘High-quality Pt-based catalysts are highly desirable for ethanol oxidation reaction(EOR),which is of critical importance for the commercial applications of direct ethanol fuel cells(DEFCs).However,most of the Pt-based catalysts have suffered from high cost and low operation durability.Herein a two-step method has been developed to synthesize porous Pt nanoframes decorated with Bi(OH)3,which show excellent catalytic activity and operation durability in both alkaline and acidic media.For example,the nanoframes show a mass activity of 6.87 A·mgPt−1 in alkaline media,which is 13.5-fold higher than that of commercial Pt/C.More importantly,the catalyst can be reactivated simply,which shows negligible activity loss after running for 180,000 s.Further in situ attenuated total reflection-infrared(ATR-IR)absorption spectroscopy and CO-stripping experiments indicate that surface Bi(OH)3 species can greatly facilitate the formation of adsorbed OH species and subsequently remove carbonaceous poison,resulting in a significantly enhanced stability towards EOR.This work may favor the tailoring of desired electrocatalysts with high activity and durability for future commercial application of DEFCs.Xiaolei Yuan Bei Jiang Muhan Cao Congyang Zhang Xiaozhi Liu Qinghua Zhang Fenglei Lyu Lin Gu Qiao Zhang 2020Nano Research2020,13,1:3
2Dual amine-and brnsted acid-catalyzed α-allylic alkylation of aldehydes显示文摘Xu Liwen Gao Guang Gu Fenglei 2010Advanced Synthesis & Catalysis2010,352,9:1
3Galangin mitigates glucocorticoid-induced osteoporosis by activating autophagy of BMSCs via triggering the PKA/CREB signaling pathway显示文摘Glucocorticoid-induced osteoporosis(GIOP),one of the most common and serious adverse effects associated with glucocorticoid administration,manifests as decreased bone formation and increased bone resorption,eventually culminating in bone loss.Galangin(GAL)is a flavonoid extracted from the medicinal herbal galangal that possesses a variety of pharmacological activities and can inhibit osteoclastogenesis.However,the effects of GAL on GIOP remain unclear.Our study aims to explore the effects of GAL on GIOP in mice and the underlying mechanism.Our results show that GAL markedly mitigates the severity of dexamethasone(Dex)-induced osteoporosis in mice and potentiates osteogenic differentiation in mouse bone marrow-derived mesenchymal stem cells(BMSCs).Furthermore,GAL also significantly counteracts Dex-mediated suppression of osteogenic differentiation and autophagy in human BMSCs.GAL augments PKA/CREB-mediated autophagic flux in BMSCs and the bones of osteoporotic mice.GAL-mediated osteogenic differentiation in Dex-treated BMSCs is significantly decreased by the PKA inhibitor H89 and autophagy inhibitor 3-methyladenine.Collectively,our data indicate that GAL can ameliorate GIOP,partly by augmenting the mineralization of BMSCs by potentiating PKA/CREB-mediated autophagic flux,highlighting its potential therapeutic use in treating glucocorticoid-related osteoporosis.Chenying Zeng Shan Wang Huimin Gu Fenglei Chen Ziming Wang Jinteng Li Zhongyu Xie Pei Feng Huiyong Shen Yanfeng Wu 2023Acta Biochimica et Biophysica Sinica2023,55,8:0
4Applicability of nonmetric multidimensional scaling to noise quality research显示文摘With loudness-equalized car interior noise as sound stimuli, the work focused on applicability of nonmetric multidimensional scaling (NMDS) to sound quality research. It is presented that NMDS is an effective tool for subjective assessment research of sound quality, when listeners are clustered through correlation between listeners. With this key clustering process, the perceptual structure of car interior noise with strong consistency is revealed. The results shown that: for car interior noise, ‘preference’ can be regarded as a main sub-dimension in ‘similarity’ space and listeners could be divided into two groups; For both groups of listeners, the perceptual ‘preference’ can be characterized as one-dimensional descriptor, with one group has a positive relation to ‘low-frequency’, while another group has a negative relation to ‘low-frequency’.JIAO Fenglei CHEN Yaobin JIANG Jian GU Fengshou Andrew BALL MAO Dongxing 2006Chinese Journal of Acoustics2006,25,3:0
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