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| 1 | Optimizing interfacial electronic coupling with metal oxide to activate inert polyaniline for superior electrocatalytic hydrogen generation显示文摘Tuning and optimization of electronic structures and related reaction energetics are critical toward the rational design of efficient electrocatalysts.Herein,experimental and theoretical calculation demonstrate the originally inert N site within polyaniline(PANI)can be activated for hydrogen evolution by proper d-πinterfacial electronic coupling with metal oxide.As a result,the assynthesized WO3 assemblies@PANI via a facile redox-induced assembly and in situ polymerization,exhibits the electrocatalytic production of hydrogen better than other control samples including W18O49@PANI and most of the reported nobel-metal-free electrocatalysts,with low overpotential of 74 mV at 10 mA·cm−2 and small Tafel slope of 46 mV·dec−1 in 0.5M H2SO4(comparable to commercial Pt/C).The general efficacy of this methodology is also validated by extension to other metal oxides such as MoO3 with similar improvements. | Zhen-Feng Huang Jiajia Song Yonghua Du Shuo Dou Libo Sun Wei Chen Kaidi Yuan Zhengfei Dai Xin Wang | 2019 | Carbon Energy2019,1,1: | 5 |
| 2 | Image Inpainting Based on Improved Deep Convolutional Auto-encoder Network显示文摘This paper proposes an effective image inpainting method using an improved deep convolutional auto-encoder network.By analogy with exiting methods of image inpainting based on auto-decoders,inpainting methods using the deep convolutional auto-encoder networks are significantly more effective in capturing high-level features than classical methods based on exemplar.However,the inpainted regions would appear blurry and global inconsistency.To alleviate the fuzzy problem,we improved the network model by adding skip connections between mirrored layers in encoder and decoder stacks,so that the generative process of the inpainting area can directly use the low-level features information of the processing image.For making the inpainted result look both more plausible and consistent with its surrounding contexts,the model is trained with a combination of standard pixel-wise reconstruction loss and two adversarial losses which ensures pixel-accurate and local-global contents consistency.With extensive experimental on the ImageNet and Paris Streetview datasets,we demonstrate qualitatively and quantitatively that our approach performs better than state of the art. | QIANG Zhenping HE Libo DAI Fei ZHANG Qinghui LI Junqiu | 2020 | Chinese Journal of Electronics2020,29,6: | 2 |
| 3 | Quantitative analysis of trazodone in human plasma by using HPLC-fluorescence detector coupled with strong cation exchange chromatographic column: application to a pharmacokinetic study in Chinese healthy volunteers显示文摘 | Dai LiBo Zhu RongHua Li HuanDe | 2014 | J Chromatogr B Analyt Technol Biomed Life Sci2014,944,: | 1 |
| 4 | Correlation of gut microbiota and neurotransmitters in a rat model of post-traumatic stress disorder显示文摘Objective:To determine the effect of gut microbiota on a rat model of post-traumatic stress disorder(PTSD)and explore the correlation of gut microbiota with behavior and neurotransmitters.Methods:We established a single prolonged stress(SPS)model to examine the pathogenesis of PTSD on rat behavior,gut microbiota,and neurotransmitter levels.Rats were separated into control and model groups,and neurotransmitter levels were measured using enzyme linked immunosorbent assay.Then,16 S rRNA sequencing was used to compare the gut microbiota between the control and model groups.Results:Compared with those in the control group,freezing time significantly increased,while number of standing upright,crossing frequency,time spent in the central arena,and total distance traveled were significantly reduced in the model group after exposure to SPS(all P<.05).Meanwhile,serotonin,or 5-hydroxytryptamine,levels in the brain in the model group were significantly lower than those the control group(P紏.0332).In addition,changes were observed in the gut microbiota diversity and relative abundances of bacterial phyla,orders,families,and genera in the model group.Especially,changes in Firmicutes,Bacteroidetes,Cyanobacteria,and Proteobacteria levels were most pronounced after SPS exposure.Correlation analysis showed that the strongest positive correlation was found between Bacteroidaceae and 5-HT(P?.0009).Moreover,RF32 abundance was the most negatively related to 5-HT(P?.0009),crossing frequency(P?.0007),and total distance(P?.0003).Conclusion:Our results suggest that SPS model rats showed differences in behavior,neurotransmitter levels,and gut microbiota with control rats.Moreover,Firmicutes,Bacteroidetes,Cyanobacteria,and Proteobacteria were most relevant to the exhibited fear-like and anxiety-like behaviors and significant serotonin content reduction in SPS model rats. | Qin Zhou Tianshi Sun Fengzhi Wu Feng Li Yan Liu Weihong Li Ning Dai Libo Tan Tenghui Li Yuehan Song | 2020 | Journal of Traditional Chinese Medical Sciences2020,7,4: | 1 |
| 5 | Design and Fabrication of a Novel Core-Suspended Optic Fiber for Distributed Gas Sensor显示文摘我们设计了核心在空气洞和结束里被推迟到内部表面的新奇推迟核心的毛状的纤维毛状,并且试验性地表明了它的制造技术。另外,为连接单个模式纤维的一个方法和推迟核心的纤维基于在在二纤维之间的熔化点拼接并且逐渐变细被建议。由与光时间域反射计技术结合,我们构造了一个分布式的煤气的传感器系统基于这新奇纤维监视温室气体。 | Tao ZHANG | 2014 | Photonic Sensors2014,4,2: | 1 |
| 6 | Ir-skinned Ir-Cu Nanoparticles with Enhanced Activity for Oxygen Reduction Reaction显示文摘The development of methanol-tolerate oxygen reduction reaction(ORR)electrocatalysts is of special significance to direct methanol fuel cells system.Irdium is known for its better methanol tolerance than platinum and able to survive in harsh acidic environment.However,its activity is relatively low and thus the approach to improve Ir's ORR is desired.Herein,bimetallic Ir-Cu nanoparticles(NPs)with controllablc Ir/Cu compositions(ca.1:2 to 4:1,atomic ratio)are synthesized via a galvanic replacement-based chemical method.The as-synthesized Ir-Cu NPs are investigated as ORR catalysts after electrochemically leaching out the surface Cu and forming Ir-skinned structures.Around 2-to 3-fold enhancement in the intrinsic activity has been observed in these Ir-skinned Ir-Cu catalysts compared to Ir counterpart.The approach is demonstrated to be a promising way to prepare efficient Ir ORR catalysts and lower catalyst cost. | WANG Jiarui ZHOU Ye SUN Libo GE Jingjie WANG Jingxian DAI Chencheng XU Zhichuan | 2020 | Chemical Research in Chinese Universities2020,36,3: | 1 |