检索结果-南通市图书馆

Chinese Chemical Letters 2006年第3期17卷 411-414页

作者： Xiao Wei ZHANG Chu Luo YANG Zhong An LI Lin Na ZHU Jin Gui QIN jia gao Dong Ge MA Department of Chemistry Key Lab on Organic and Polymeric Opto-electronic Materials Wuhan University Wuhan 430072 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022

Three new cyclometalated iridium（m） complexes based on ligands of diphenylquinoline with fluorinated subsfituents were prepared, and characterized by elemental analysis （EA）, ^1H NMR, and mass spectroscopy （MS）.... 详细信息

关键词： Iridium complexes phenylquinoline photoluminescence electrophosphorescence

The bZIP transcription factor ATF1 regulates blue light and oxidative stress responses in Trichoderma guizhouense

在线全文

学校读者我要写书评

暂无评论

mLife 2023年第4期2卷 365-377页

作者： Yifan Li Yanshen Li Huanhong Lu Tingting Sun jia gao jian Zhang Qirong Shen Zhenzhong Yu Nanjing Agricultural University Jiangsu Provincial Key Lab for Organic Solid Waste UtilizationNational Engineering Research Center for Organic-based FertilizersJiangsu Collaborative Innovation Center for Solid Organic Waste Resource UtilizationAgricultural Microbial Resources Protection and Germplasm Innovation and Utilization Center of Jiangsu ProvinceNanjingChina Department of Microbiology Karlsruhe Institute of Technology(KIT)—South CampusInstitute for Applied BiosciencesKarlsruheGermany

In several filamentous fungi,incident light and environmental stress signaling share the mitogen-activated protein kinase(MAPK)HOG(SAK)*** has been revealed that short-term illumination with blue light triggers the activation of the HOG pathway in Trichoderma *** this study,we demonstrate the crucial role of the basic leucine zipper transcription factor ATF1 in blue light responses and signaling downstream of the MAPK HOG1 in Trichoderma *** lack of ATF1 severely impaired photoconidiation and delayed vegetative growth and conidial *** blue light or H2O2 stimuli,HOG1 interacted with ATF1 in the ***-wide transcriptome analyses revealed that 61.8%(509 out of 824)and 85.2%(702 out of 824)of blue light-regulated genes depended on ATF1 and HOG1,respectively,of which 58.4%(481 out of 824)were regulated by both of *** results also show that blue light promoted conidial germination and HOG1 and ATF1 played opposite roles in controlling conidial germination in the ***,the lack of ATF1 led to reduced oxidative stress resistance,probably because of the downregulation of catalase-encoding ***,our results demonstrate that ATF1 is the downstream component of HOG1 and is responsible for blue light responses,conidial germination,vegetative growth,and oxidative stress resistance in ***.

关键词： bZiP transcription factor ATF1 light responses MAPK HOG1 oxidative stress Trichoderma guizhouense

Single-wavelength Excited Ratiometric Fluorescence pH Probe to Image Intracellular Trafficking of Tobacco Mosaic Virus

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 Journal of Polymer Science 2020年第6期38卷 587-592页

作者： Si-jia gao Zhuang Li Zhi-Cheng Sun Jin-Yue Wen Fu-Rong Li Xiao-Yang Du Yan Liu Ye Tian Zhong-Wei Niu Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Beijing Engineering Research Centerof Printed Electronics Beijing Institute of Graphic CommunicationBeijing 102600China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China

As a typical plant virus which has biocompatibility and high transfection efficiency,tobacco mosaic virus(TMV)has shown broad application potential in drug or gene delivery *** its intracellular trafficking is of great importance in investigation of its cytotoxicity,targeting site,and delivery efficiency,and is advantageous to designing new TMV-based drug delivery systems with different *** taking advantage of the regulated pH value of different organelles in a mammalian cell,we exploit a pH detection strategy to investigate the intracellular trafficking pathway of ***,we report a single-wavelength excited ratiometric fluorescent pH *** probe is constructed by simultaneously coupling pH-sensitive fluorescein isothiocyanate(FITC)and pH-insensitive rhodamine B isothiocyanate(RBIRC)onto the inner surface of *** fluorescence intensity ratio of FITC to RBITC excited at 488 nm responds specifically towards pH value over other interferential *** taking use of this single-wavelength excited ratiometric pH probe and confocal laser scanning microscopy,it is shown that the endocytosed TMV is located in a pH decreasing microenvironment and eventually enters *** work may provide important guidance on construction of TMV-based nano carriers.

关键词： Tobacco mosaic virus Ratiometric fluorescence pH probe Intracellular trafficking

Stepwise Crystalline Structural Transformation in 0D Hybrid Antimony Halides with Triplet Turn-on and Color-Adjustable Luminescence Switching

在线全文

学校读者我要写书评

暂无评论

Research 2023年第4期2023卷 485-497页

作者： jian-Qiang Zhao Yue-Yu Ma Xue-Jie Zhao Yu-jia gao Zi-Yan Xu Pan-Chao Xiao Cheng-Yang Yue Xiao-Wu Lei School of Chemistry Chemical Engineer and MaterialsJining UniversityQufuShandong 273155P.R.China

Intelligent stimuli-responsive fluorescence materials are extremely pivotal for fabricating luminescent turn-on switching in solid-state photonic integration technology,but it remains a challenging objective for typical 3-dimensional(3D)perovskite ***,by fine-tuning the accumulation modes of metal halide components to dynamically control the carrier characteristics,a novel triple-mode photoluminescence(PL)switching was realized in 0D metal halide through stepwise single-crystal to single-crystal(SC-SC)***,a family of 0D hybrid antimony halides was designed to exhibit three distinct types of PL performance including nonluminescent[Ph_(3)EtP]_(2)Sb_(2)Cl_(8)(1),yellowemissive[Ph3EtP]2SbCl5·EtOH(2),and red-emissive[Ph_(3)EtP]_(2)SbCl_(5)(3).Upon stimulus of ethanol,1 was successfully converted to 2 through SC-SC transformation with enhanced PL quantum yield from~0%to 91.50%acting as“turn-on”luminescent ***,reversible SC-SC and luminescence transformation between 2 and 3 can be also achieved in the ethanol impregnation-heating process as luminescence vapochromism *** a consequence,a new triple-model turn-on and coloradjustable luminescent switching of off-onI-onII was realized in 0D hybrid ***,wide advanced applications were also achieved in anti-counterfeiting,information security,and optical logic *** novel photon engineering strategy is expected to deepen the understanding of dynamic PL switching mechanism and guide development of new smart luminescence materials in cutting-edge optical switchable device.

关键词： luminescence halide Transformation

Dealloying corrosion of anodic and nanometric Mg41Nd5 in solid solution-treated Mg-3Nd-1Li-0.2Zn alloy

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 Materials Science & Technology 2021年第24期83卷 161-178页

作者： Gui-jia gao Mei-Qi Zeng En-Liang Zhang Rong-Chang Zeng Lan-Yue Cui Dao-kui Xu Feng-Qin Wang M.Bobby Kannan Corrosion Laboratory for Light Metals College of Materials Science and EngineeringShandong University of Science and TechnologyQingdao266590China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450002China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China School of Engineering University of NewcastleCallaghanNew South Wales 2308Australia

The microstructure and chemical compositions of the solid solution-treated Mg-3 Nd-1 Li-0.2 Zn alloy were characterized using optical microscope,scanning electron microscope(SEM),transmission electron microscope(TEM),electron probe micro-analyzer(EPMA)and X-ray photoelectron spectroscopy(XPS).The corrosion behaviour of the alloy was investigated via electrochemical polarization,electrochemical impedance spectroscopy(EIS),hydrogen evolution test and scanning Kelvin probe(SKP).The results showed that the microstructure of the as-extruded Mg-3 Nd-1 Li-0.2 Zn alloy containedα-Mg matrix and nanometric second phase Mg_(41)Nd_(5).The grain size of the alloy increased significantly with the increase in the heat-treatment duration,whereas the volume fraction of the second phase decreased after the solid solution *** surface film was composed of oxides(Nd_(2)O_(3),Mg O,Li_(2)O and Zn O)and carbonates(Mg CO3 and Li_(2)CO3),in addition to *** as-extruded alloy exhibited the best corrosion resistance after an initial soaking of 10 min,whereas the alloy with 4 h-solution-treatment possessed the lowest corrosion rate after a longer immersion(1 h).This can be attributed to the formation of Nd-containing oxide film on the alloys and a dense corrosion product *** dealloying corrosion of the second phase was related to the anodic Mg_(41)Nd_(5)with a more negative Volta potential relative toα-Mg *** preferential corrosion of Mg_(41)Nd_(5)is proven by in-situ observation and *** solid solution treatment of Mg-3 Nd-1 Li-0.2 Zn alloy led to a shift in corrosion type from pitting corrosion to uniform corrosion under long-term exposure.

关键词： Magnesium alloy Corrosion Second phase Rare metal Dealloying

Strengthening effect of crushed rock revetment and thermosyphons in a traditional embankment in permafrost regions under warming climate

在线全文

学校读者我要写书评

暂无评论

Advances in Climate Change Research 2021年第1期12卷 66-75页

作者： MEI Qi-Hang CHEN Ji WANG Jin-Chang HOU Xin ZHAO Jing-Yi ZHANG Shou-Hong DANG Hai-Ming gao jia-Wei Beiluhe Observation and Research Station of Frozen Soil Engineering and Environment State Key Laboratory of Frozen Soil EngineeringNorthwest Institute of Eco-Environmental and ResourcesChinese Academy of SciencesLanzhou730000China University of Chinese Academy of Sciences Beijing100049China China Railway Qinghai-libet Group Co.Ltd Xining810007China

The embankment of the Qinghai-Tibet Railway(QTR)has been experiencing severe problems due to permafrost degradation,especially in warm and ice-rich permafrost *** on ground temperature and deformation data of the embankment at location K1497+150 of the QTR in 2006-2018,the thermal regime and deformation process were *** results showed that 1)the degradation rate of permafrost under the embankment was faster than that under the natural site without engineering construction,and 2)the deformation rate of the embankment had exceeded the safety range for the QTR embankment before adopting mitigative *** addition,this study evaluated the cooling effect on the underlying permafrost and working mechanism of two strengthening *** measures,crushed rock revetment(CRR)and thermosyphons,were adopted to protect the underlying permafrost from continual *** individual cooling effect of the CRR was not as good as that of the ***,the combination of the two could enhance the protective effects of each on the underlying permafrost,effectively cooling the permafrost and improving the stability of the embankment.

关键词： Climate warming Permafrost Crushed rock revetment(CRR) Thermosyphons Settlement

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

考虑风险分担的多重不确定供应链决策与协调

计算机集成制造系统 2015年第4期21卷 1077-1088页

作者：王旭高佳重庆大学现代物流重庆市重点实验室重庆400044 重庆大学机械传动国家重点实验室重庆400044

为分析供应和需求同时不确定的供应链中,供需扰动风险分担机制对零售商、供应商以及分散式供应链库存决策和表现的影响,基于现实提炼了三种有代表性的风险分担机制不同的支付协议,并分析了各个协议下分数式供应链的决策过程,运用绝对和... 详细信息

为分析供应和需求同时不确定的供应链中,供需扰动风险分担机制对零售商、供应商以及分散式供应链库存决策和表现的影响,基于现实提炼了三种有代表性的风险分担机制不同的支付协议,并分析了各个协议下分数式供应链的决策过程,运用绝对和相对指标对零售商、供应商和分数式供应链在各协议中的表现进行评估与对比,结果表明零售商和分散式供应链偏好需求风险分担协议,供应商偏好供应风险分担协议;针对采用不同支付协议的供应链设计了相应的协调机制,并对其参数和协调效果进行了不确定性灵敏度分析,发现供需不确定性只影响所设计协调机制的协调参数,不影响协调效果。分别假设需求服从均匀分布和正态分布,通过数值分析对所提模型及结论进行了验证和拓展。

关键词：多重不确定性风险分担支付协议协调机制供应链

产权认知及外部环境对农户土地流转行为影响模型分析

在线全文

学校读者我要写书评

暂无评论

农业工程学报 2017年第5期33卷 248-256页

作者：高佳宋戈东北大学文法学院沈阳110169

农民的产权认知及外部环境直接影响农户的土地流转行为决策。该文基于陕西关中地区545户农户调研数据,按农民非农收入水平和承包地经营规模分异将农户进行分组,用多群组结构方程模型,将非农水平和承包地经营规模作为调节变量,分析农户... 详细信息

农民的产权认知及外部环境直接影响农户的土地流转行为决策。该文基于陕西关中地区545户农户调研数据,按农民非农收入水平和承包地经营规模分异将农户进行分组,用多群组结构方程模型,将非农水平和承包地经营规模作为调节变量,分析农户产权认知及外部环境对其土地流转行为的影响差异。研究结果表明:农户土地流转意愿对其土地流转行为的综合影响最大,外部环境次之。农户对土地抵押权的认知对土地流转意愿具有显著影响。家庭非农收入水平高、经营规模小的农户更容易将土地流转意愿转化为土地流转行为。研究产权认知和外部环境因素能为制定土地流转政策提供科学依据。

关键词：土地利用农场模型土地管理城镇化产权认知外部环境土地流转多群组结构方程

ynthesis of polymer thin films by cold plasma on Nitinol substrates

在线全文

学校读者我要写书评

暂无评论

材料科学与工程（中英文版） 2007年第1期1卷 7-12页

作者： YANG Jun gao jia-cheng College of Materials Science and Engineering Chongqing University Chongqing 400044 China School of Materials Science and Engineering Wuhan Institute of Technology Wuhan 430073 China

Phosphatidic Acid （PA） PP2A Activity and PIN1 Binds PP2AA1 to Regulate Polar Localization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2013年第5期6卷 1692-1702页

作者： Hong-Bo gao Yu-jia Chu Hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chineseacademy of Sciences 200032 Shanghai People's Republic of China

Phospholipase D （PLD） exerts broad biological functions in eukaryotes through regulating downstream effectors by its product, phosphatidic acid （PA）. Protein kinases and phosphatases, such as mammalian target of rapa- mycin （mTOR）, Protein Phosphatase 1 （PP1） and Protein Phosphatase 2C （PP2C）, are PA-binding proteins that execute crucial regulatory functions in both animals and plants. PA participates in many signaling pathways by modulating the enzymatic activity and/or subcellular localization of bound proteins. In this study, we demonstrated that PLD-derived PA interacts with the scaffolding A1 subunit of Protein Phosphatase 2A （PP2A） and regulates PP2A-mediated PIN1 dephos- phorylation in Arabidopsis. Genetic and pharmacological studies showed that both PA and PP2A participate in the regu- lation of auxin distribution. In addition, both the phosphorylation status and polar localization of PIN1 protein were affected by PLD inhibitors, Exogenous PA triggered the membrane accumulation of PP2AA1 and enhanced the PP2A activity at membrane, while PLD inhibition resulted in the reduced endosomal localization and perinuclear aggregation of PP2AA1. These results demonstrate the important role of PLD-derived PA in normal PP2A-mediated PIN dephosphoryl- ation and reveal a novel mechanism, in which PA recruits PP2AA1 to the membrane system and regulates PP2A function on membrane-targeted proteins. As PA and PP2A are conserved among eukaryotes, other organisms might use similar mechanisms to mediate multiple biological processes.

关键词： phosphatidic acid (PA) PP2A PIN1 phosphorylation polar localization.