检索结果-南通市图书馆

Carbon Energy 2021年第5期3卷 752-761页

作者： Zhaolin Na xinran Wang Xiaoting Liu Wenjing Li Xudong Sun Liaoning Engineering Laboratory of Special Optical Functional Crystals College of Environmental and Chemical EngineeringDalian UniversityDalianChina Foshan Graduate School Northeastern UniversityFoshanChina

The cerium-based redox flow battery(RFB)is regarded as a compelling gridscale energy storage technology to revolutionize the utilization of renewable energy by storing the energy in liquid ***,its widespread implementation is impeded by the cerium redox reactions that exhibit slow kinetics on commercial graphite felt(GF)*** functionalization may be an available activation strategy to achieve a significant boost in the electrochemical performance of ***,conventional chemical and/or electrochemical routes for the surface functionalization of GFs suffer from the issues of complication,and the deterioration of the resulting modified electrode surface over long-term cycle processes leads to catalytic activity ***,we develop a facile and general strategy for introducing the functional groups to the electrode through the addition of L-cysteine into ***-COOH,-NH_(2),and-SH groups in L-cysteine can induce oxygen/nitrogen/sulfur trifunctional doping on GF surfaces with lower deterioration rates,which enables the activated GFs to demonstrate a promising electrocatalytic activity toward cerium redox reactions and excellent durability when used as a cerium-based RFB *** study proposes a rational strategy to overcome the intrinsic limitations of existing modification techniques for GFs and provides a potential pathway toward high-performance RFBs.

关键词： additive cerium electrocatalysis graphite felt redox flow battery

Viologens-based redox mediators with tunable HOMO–LUMO energy gap for highly effective hydrogen peroxide electrosynthesis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2023年第12期16卷 12936-12941页

作者： Yang Gao Xiaohui Xu Yue Niu xinran Hu Zeyu Li Longkun Yang Linjie Zhi Bin Wang CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China The Beijing Key Laboratory for Nano-Photonics and Nano-Structure(NPNS) Department of PhysicsCapital Normal UniversityBeijing 100048China College of New Energy China University of Petroleum(East China)Qingdao 266580China

In comparison with the developing nano-carbon catalysts,some small organic molecules are also emerging as catalysts with typical features,however,their working mechanism is still ***,we synthesized a series of viologen-based heterogeneous catalysts with the same molecular skeleton but different substituent groups through anion exchange *** viologen-based molecules were used as a model catalyst to investigate the underlying structure–function relationship for small molecules-based H_(2)O_(2) *** from the commonly reported carbon-based electrocatalysts,viologens can produce H_(2)O_(2) in a synergistic manner,which means that viologens can not only directly catalyze oxygen reduction but also serve as a redox *** found that the ring current and H_(2)O_(2) selectivity of viologens deliver an increasing trend with the increase of the alkyl chain length of alkyl-substituted viologens and further increase when using benzyl as the substituent *** a result,a benzyl-substituted viologen(BV)delivers the best electrocatalytic performance among the samples,including the highest H_(2)O_(2) selectivity of 96.9%at 0.6 V and the largest ring current density of about 13.6 mA·***,density functional theory(DFT)calculations disclose that the carbon atoms bonded with positively charged N are the active sites and the small highest occupied molecular orbital(HOMO)–lowest unoccupied molecular orbital(LUMO)energy gap of BV is beneficial to the synergistic mechanism for H_(2)O_(2) *** work sheds new insight into the efficient H_(2)O_(2) production in a synergistic manner for small molecules-based electrocatalysts.

关键词： viologens electrocatalysis hydrogen peroxide redox mediator oxygen reduction

Cu-alanine complex-derived CuO electrocatalysts with hierarchical nanostructures for efficient oxygen evolution

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第7期32卷 2239-2242页

作者： xinran Li Changli Wang Yang-Yi Liu Huaiguo Xue Huan Pang Qiang Xu School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory(ChEM-OlL) National Institute of Advanced Industrial Science and Technology(A1ST)Kyoto 606-8501Japan

Nowadays,Cu-based materials have attracted extensive attention as electrocatalysts,while the inherent reason of the filling of high anti-bonding state of Cu d band(3 d^(10)4 s^(1))makes it difficult to hybridize with O2 p band of oxygen intermediates during the adsorption process of oxygen evolution reaction(OER).To increase the efficiency of Cu-based electrocatalysts,efforts have been made to optimize the electronic structures and to create surface defects and hierarchical nanostructures with more exposed accessible active ***,we report a facile method for preparing CuO electrocatalysts with hierarchical nanostructures using the Cu-alanine complex as a precursor through room-temperature chemical precipitation and subsequent calcination in *** of products obtained at different calcination temperatures reveal the relationship between OER activities and the material characteristics such as specific surface areas,crystal growth orientations,and element *** product obtained at 500℃exhibits the smallest overpotential of 290 mV in 1.0 mol/L KOH for electrocatalyzing *** with various characterizations of CuO electrocatalysts after OER activities,the possible catalytic mechanism and the influence factors of their OER performance are also discussed.

关键词： Copper complex precursor Copper oxide Hierarchical nanostructure Electrocatalysis Oxygen evolution reaction

A compact model for transition metal dichalcogenide field effect transistors with effects of interface traps

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2021年第4期64卷 174-176页

作者： Yifei XU Weisheng LI Dongxu FAN Yi SHI Hao QIU xinran WANG National Laboratory of Solid State Microstructures School of Electronic Science and Engineering Collaborative Innovation Center of Advanced MicrostructuresNanjing University

Dear editor,Two-dimensional transition metal dichalcogenide （TMD）materials, such as molybdenum disulphide （MoS2）, are considered as promising channel candidates in field effect transistors （FETs） for future gene... 详细信息

关键词： Information Systems and Communication Service

Integrating remotely sensed water stress factor with a crop growth model for winter wheat yield estimation in the North China Plain during 2008–2018

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

The Crop Journal 2022年第5期10卷 1470-1482页

作者： Wen Zhuo Shibo Fang Dong Wu Lei Wang Mengqian Li Jiansu Zhang xinran Gao State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Collaborative Innovation Centre on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing 210044JiangsuChina School of Geography and Earth Sciences McMaster UniversityHamiltonOntario L8S 4L8Canada

Accurate estimation of regional-scale crop yield under drought conditions allows farmers and agricultural agencies to make well-informed decisions and guide agronomic management. However, few studies have focused on using the crop model data assimilation(CMDA) method for regional-scale winter wheat yield estimation under drought stress and partial-irrigation conditions. In this study, we developed a CMDA framework to integrate remotely sensed water stress factor(MOD16 ET PET) with the WOFOST model using an ensemble Kalman filter(En KF) for winter wheat yield estimation at the regional scale in the North China Plain(NCP) during 2008–2018. According to our results, integration of MOD16 ET PETwith the WOFOST model produced more accurate estimates of regional winter wheat yield than open-loop simulation. The correlation coefficient of simulated yield with statistical yield increased for each year and error decreased in most years, with r ranging from 0.28 to 0.65 and RMSE ranging from 700.08 to1966.12 kg ha. Yield estimation using the CMDA method was more suitable in drought years(r = 0.47, RMSE = 919.04 kg ha) than in normal years(r = 0.30, RMSE = 1215.51 kg ha). Our approach performed better in yield estimation under drought conditions than the conventional empirical correlation method using vegetation condition index(VCI). This research highlighted the potential of assimilating remotely sensed water stress factor, which can account for irrigation benefit, into crop model for improving the accuracy of winter wheat yield estimation at the regional scale especially under drought conditions, and this approach can be easily adapted to other regions and crops.

关键词： WOFOST Evapotranspiration Drought Data assimilation Winter wheat yield

Comparison in structure and predicted function of epiphytic bacteria on Neopyropia yezoensis and Neopyropia katadae

在线全文

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2023年第6期41卷 2232-2248页

作者： xinran WANG Junhao WANG Yunke ZHU Xinyu ZHU Hong QIN Ka BIAN Xianghai TANG Key Laboratory of Marine Genetics and Breeding(Ministry of Education) College of Marine Life SciencesOcean University of ChinaQingdao 266003China

The economic alga Neopyropia,which holds significant value in China for its edibility and economic potential,harbors diverse epiphytic bacteria on its *** epiphytic bacteria on Neopyropia yezoensis and Neopyropia katadae,two nori species of Neopyropia living at the same tidal level but with distinct physiological states and living habits,were investigated to understand the differences between them and the effects of epiphytic bacteria on their differential *** of 16S rRNA gene sequences and real-time quantitative PCR(qPCR)of thalli and seawater samples(n=24)revealed notable differences in microbial diversity and community structure between the two *** dominated the bacterial communities in association with ***,whereas Proteobacteria were predominant in *** Investigation of Communities by Reconstruction of Unobserved States(PICRUSt2)analysis revealed enriched genes that related to the ABC transport system,iron complex outer membrane receptor proteins,and proliferation in ***,whereas *** exhibited enrichment of genes that related to energy supply as well as cell wall and cell membrane *** results of qPCR indicate a higher abundance of epiphytic bacteria on surface of *** than those on surface of *** findings indicate that differences in the living environments of *** and *** may result in distinct structural composition and abundance of epiphytic bacteria on their surfaces,thereby conferring specific biological functionalities to each microbial community,and the epiphytic bacteria may shape the living habits of hosts to some *** study provided a basis for understanding the close association between surface microorganisms and algal bodies,and the physiological and ecological characteristics of nori species.

关键词： Neopyropia yezoensis Neopyropia katadae epiphytic bacteria 16 S rRNA quantitative PCR(qPCR)

P7C3-A20 treats traumatic brain injury in rats by inhibiting excessive autophagy and apoptosis

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第5期19卷 1078-1083页

作者： Zhiqing Yang Zhenchao Wang Xiaoqi Deng Lingxin Zhu Zhaomeng Song Changyu Cao xinran Li School of Life Science and Engineering Foshan UniversityFoshanGuangdong ProvinceChina Foshan University Veterinary Teaching Hospital FoshanGuangdong ProvinceChina

Traumatic brain injury is a severe health problem leading to autophagy and apoptosis in the brain.3,6-Dibromo-beta-fluoro-N-(3-methoxyphenyl)-9H-carbazole-9-propanamine(P7C3-A20)can be neuroprotective in various diseases,including ischemic stroke and neurodegenerative ***,whether P7C3-A20 has a therapeutic effect on traumatic brain injury and its possible molecular mechanisms are ***,in the present study,we investigated the therapeutic effects of P7C3-A20 on traumatic brain injury and explored the putative underlying molecular *** established a traumatic brain injury rat model using a modified weight drop method.P7C3-A20 or vehicle was injected intraperitoneally after traumatic brain *** neurological deficits were found in rats after traumatic brain injury,with deterioration in balance,walking function,and learning ***,hematoxylin and eosin staining showed significant neuronal cell damage,while terminal deoxynucleotidyl transferase mediated dUTP nick end labeling staining indicated a high rate of *** presence of autolysosomes was observed using transmission electron microscope.P7C3-A20 treatment reversed these pathological *** blotting showed that P7C3-A20 treatment reduced microtubule-associated protein 1 light chain 3-Ⅱ(LC3-Ⅱ)autophagy protein,apoptosis-related proteins(namely,Bcl-2/adenovirus E1B 19-kDa-interacting protein 3[BNIP3],and Bcl-2 associated x protein[Bax]),and elevated ubiquitin-binding protein p62(p62)autophagy protein ***,P7C3-A20 can treat traumatic brain injury in rats by inhibiting excessive autophagy and apoptosis.

关键词： apoptosis autophagy cortex hippocampus motor function P7C3-A20 traumatic brain injury

Morphological and heterojunctional engineering of two-dimensional porous Mo-Ni based catalysts for highly effective catalytic reduction of aromatic nitro compounds

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2023年第9期34卷 310-316页

作者： Zexu Fang Ying Gu xinran Dong Gen Zhang Lin Li Xiaoguang Zhou Chungui Tian College of Chemistry Chemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbin 150040China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080China

Hydrogenation reactions play crucial roles on chemical synthesis and pollutant *** improvement of the ability to activate reactants and increase of the contact probability between the catalysts and reactants are positive to improve the catalytic ***,we have reported the design of two-dimensional porous Ni-Ni_(3)N-Ni Mo N heterojunction sheets(2D Mo-Ni based nanosheets)for efficient catalytic hydrogenation of the aromatic *** heterojunction interfaces provide plentiful active sites to improve the activating ability of the catalyst on the ***,the 2D porous structure facilitates not only the contact of catalytic sites with reactants but also mass transfer and diffusion,both of which are favorable to accelerating the hydrogenation *** a result,the optimized sample of 2D Mo-Ni sheet exhibits good activity for the hydrogenation of aromatic nitro-compounds by converting 0.2 mmol/L(30 mL)of p-nitrophenol to p-aminophenol within 45 s with good *** activation energy and the reaction rate at 25℃ is 31.11 k J/mol and 0.0796 s^(-1),respectively,both of which surpass most of reported non-noble metal catalysts and rivals with most noble metal-based *** combination of late and early transition metals provides an innovative way to obtain outstanding catalysts for the hydrogenation.

关键词： Hydrogenation Nitro compounds Two-dimensional sheets Heterojunction Nitrides

Azithromycin enhances anticancer activity of TRAIL by inhibiting autophagy and up-regulating the protein levels of DR4/5 in colon cancer cells in vitro and in vivo

在线全文

学校读者我要写书评

暂无评论

Cancer Communications 2018年第1期38卷 446-458页

作者： xinran Qiao Xiaofei Wang Yue Shang Yi Li Shu-zhen Chen Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100050P.R.China

Background:Azithromycin is a member of macrolide antibiotics,and has been reported to inhibit the proliferation of cancer ***,the underlying mechanisms are not been fully *** necrosis factor-related apoptosis-inducing ligand(TRAIL)selectively targets tumor cells without damaging healthy *** the present study,we examined whether azithromycin is synergistic with TRAIL,and if so,the underlying mechanisms in colon ***:HCT-116,SW480,SW620 and DiFi cells were treated with azithromycin,purified TRAIL,or their combina-tion.A sulforhoddamine B assay was used to examine cell *** was examined using annexin V-FITC/PI staining,and autophagy was observed by acridine orange *** blot analysis was used to detect protein expression *** mechanistic experiments,siRNAs were used to knockdown death receptors(DR4,DR5)and *** anticancer effect of azithromycin and TRAIL was also examined in BALB/c nude mice carrying HCT-116 ***:Azithromycin decreased the proliferation of HCT-116 and SW480 cells in a dose-dependent *** of azithromycin and TRAIL inhibited tumor growth in a manner that could not be explained by additive *** increased the expressions of DR4,DR5,p62 and LC-3B proteins and potentiated induction of apoptosis by *** of DR4 and DR5 with siRNAs increased cell survival rate and decreased the expression of cleaved-PARP induced by the combination of azithromycin and ***-3B siRNA and CQ potentiated the anti-proliferation activity of TRAIL alone,and increased the expressions of DR4 and ***:The synergistic antitumor effect of azithromycin and TRAIL mainly relies on the up-regulations of DR4 and DR5,which in turn result from LC-3B-involved autophagy inhibition.

关键词： Azithromycin TRAIL Apoptosis Autophagy Colon cancer

A Thorough Evaluation of the Passive Microwave Radiometer Measurements onboard Three Fengyun-3 Satellites

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Meteorological Research 2023年第4期37卷 573-588页

作者： xinran XIA Wenying HE Shengli WU Disong FU Wei SHAO Peng ZHANG Xiangao XIA School of Hydrology and Water Resources Nanjing University of Information Science&TechnologyNanjing 210044 Key Laboratory of Middle Atmosphere and Global Environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029 National Satellite Meteorology Centre China Meteorological AdministrationBeijing 100081 University of Chinese Academy of Sciences Beijing 101408

Microwave Radiometer Imager(MWRI) is a key payload of China’s second generation polar meteorological satellite, i.e., Fengyun-3 series(FY-3). Up to now, 5 satellites including FY-3A(2008), FY-3B(2010), FY-3C(2013), FY-3D(2018), and FY-3E(2021) have been launched successfully to provide multiwavelength, all-weather, and global data for decades. Much progress has been made on the calibration of MWRI and a recalibrated MWRI brightness temperature(BT) product(V2) was recently released. This study thoroughly evaluates the accuracy of this new product from FY-3B, 3C, and 3D by using the simultaneous collocated Global Precipitation Measurement(GPM)Microwave Imager(GMI) measurements as a reference. The results show that the mean biases(MBEs) of the BT between MWRI and GMI are generally less than 0.5 K and the root mean squares(RMSs) between them are less than1.5 K. The previous notable ascending and descending difference of the MWRI has disappeared. This indicates that the new MWRI recalibration procedure is very effective in removing potential errors associated with the emission of the hot-load reflector. Analysis of the dependence of MBE on the latitude and earth scene temperature shows that MBE decreases with decreasing latitude over ocean. Furthermore, MBE over ocean decreases linearly with increasing scene temperature for almost all channels, whereas this does not occur over land. A linear regression fitting is then used to modify MWRI, which can reduce the MBE over ocean to be within 0.2 K. The standard deviation of error of GMI, FY-3B, and FY-3D MWRI BT data derived by using the three-cornered hat method(TCH) shows that GMI has the best overall performance over ocean except at 10.65 GHz where its standard deviation of error is slightly larger than that of FY-3D. Over land, the standard deviation of error of FY-3D is the lowest at almost all channels except at 89V. MWRI onboard FY-3 series satellites would serve as an important passive microwave radiometer member of t

关键词： Microwave Radiometer Imager(MWRI) Global Precipitation Measurement(GPM)Microwave Imager(GMI) brightness temperature(BT) the three-cornered hat method(TCH)