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| 1 | Microbial activity related to N cycling in the rhizosphere of maize stressed by heavy metals显示文摘A greenhouse experiment was carried out to compare differences in potential activities of ammonification, nitrification and denitrification in rhizosphere and bulk soil in a heavy-metal-stressed system. Exchangeable fractions of Cd, Cu and Cr were all higher in the rhizosphere of maize than in bulk soil. Results showed that the mineralization of N in soil was stimulated by low concentration of Cd. Addition of Cd at low levels stimulated the ammonifying and nitrifying activity in soil, while inhibitory influences were shown at high levels. Nitrifying bacteria was proved to be the most sensitive one, whilst the effect on denitrifying bacteria was very limited. Comparing Cd, Cu and Cr(VI) at 20 mg/kg soil, Cd was the most effective inhibitor of ammonification and denitrification, while Cr(VI) had the strongest inhibitory influence on nitrifying activity. Root exudates played important roles on the different exchangeable metal fractions and bacterial activities between rhizosphere and non-rhizosphere. Nitrate was the main form of mineral N in soil, as well as the main form of N absorbed by plants, but the formation and relative absorption of ammonium were promoted in response to high Cd exposure. | YANGYe CHENYing-xu TIANGuang-ming ZHANGZi-jian | 2005 | Journal of Environmental Sciences2005，17，3： | 6 |
| 2 | Large-area high quality PtSe2 thin film with versatile polarity显示文摘Two-dimensional(2D)materials have attracted increasing attention for their outstanding structural and electrical properties.However,for mass-production of field effect transistors(FETs)and potential applications in integrated circuits,large-area and uniform 2D thin films with high mobility,large on-off ratio,and desired polarity are needed to synthesize firstly.Here,a transfer-free growth method for platinum diselenide(PtSe2)films has been developed.The PtSe2 films have been synthesized with various thicknesses in centimeter-sized scale.Typical FET made from a few layer PtSe2 show p-type unipolar,with a high field-effect hole mobility of 6.2 cm^(2) V^(−1) s^(−1) and an on-off ratio of 5×10^(3).The versatile semimetal-unipolar-ambipolar transition in synthesized PtSe2 films is also firstly observed as the thickness thinning.This work realizes the large-scale preparation of PtSe2 with prominent electrical properties and provides a new strategy for polarity's modulation. | Wei Jiang Xudong Wang Yan Chen Guangjian Wu Kun Ba Ningning Xuan Yangye Sun Peng Gong Jingxian Bao Hong Shen Tie Lin Xiangjian Meng Jianlu Wang Zhengzong Sun | 2019 | InfoMat2019，1，2： | 5 |
| 3 | Effects of Heavy Metals on Ammonification, Nitrification and Denitrification in Maize Rhizosphere显示文摘The ammonification, nitrification and denitrification in maize rhizosphere of alluvial soils were compared with those in the bulk soil after exposure to different kinds of heavy metals. The addition of cadmium at low levels (2 mg kg-1 and 5 mg kg-1) could stimulate the ammonification and nitrification in the soils, while inhibition influences were found at high levels of Cd addition (10 mg kg-1 and 20 mg kg-1). The relationship between microbial activity and cadmium concentration varied with the kind of microorganisms. The nitrifying bacteria were more sensitive to cadmium pollution than the ammonifying bacteria. When Cd(II), Cu(II) and Cr(VI) were compared at the same addition concentration of 20 mg kg-1 soil, Cd(II) was the most effective inhibitor of ammonification and denitrification among the three investigated heavy metals, and Cr(VI) had the most strong inhibitory influence on the nitrifying bacteria. The microbial activities in rhizosphere were higher than those in the bulk soil for most of the treatments. Cr(VI) proved to be the most effective in enhancing the microbial activities in rhizosphere, and this could be caused by the positive reduction of Cr(VI) to Cr(III) in rhizosphere, and the relatively sufficient existence of organic matter which intensified the adsorption of the metal. It seemed that the rhizosphere had some mitigation effect on heavy metal toxicity. | CHENYINGXU YANGYE 等 | 2001 | Pedosphere2001，11，2： | 5 |
| 4 | WaterStorageChangeinthe Himalayasfromthe Gravity Recoveryand ClimateExperiment(GRACE)andanEmpiricalClimateModel显示文摘 | MoiwoJP YangY TaoF etal | 2011 | WaterResourcesResearch2011，47，7： | 1 |
| 5 | A contrast- sensitive reversible Visible image watermarking technique显示文摘 | YangY Sun X M Yang H F | 2009 | IEEE Transactions Circuits System Video Technology2009，15，9： | 1 |
| 6 | Usingmixedsolventtosynthesizetemperaturesensitivepoly(NGisopropylacrylGamide)gelwithrapiddynamicsproperties显示文摘 | ZhangXZ ZhuoR X YangY | 2002 | BiomateriGals2002，23，： | 1 |
| 7 | Cyclophilin A upregulates MMP-9 expression and adhesion of monocytes/macrophages via CD147 signalling pathway in rheumatoid arthritis显示文摘 | YangY Lu N ZhouJ | 2008 | Rheumatology (Oxford)2008，47，9： | 1 |
| 8 | Effect of aerobic exercise and ginsenosides on lipid metabolism in diet-induced hyperlipidemiamiee显示文摘 | Yangy WU T FU ZG | 1999 | Acta Pharmacol Sin1999，20，6： | 1 |
| 9 | Research of L-type Ca2+channel cur-rent in atrialmyocytes ofpatientswith chronic atrial fibrillation显示文摘 | Li ML ZengXR YangY | | 0，，04： | 1 |
| 10 | Animprovedapproachtodetectionofamplitudeoflow-frequencyfluctuation(ALFF)forresting-statefMRI:fractionalALFF显示文摘 | ZouQH ZhuCZ YangY etal | 2008 | JNeurosciMethods2008，172，1： | 1 |
| 11 | Therenoprotectiveeffectsofber-berineviatheEP4-Galphas-cAMPsignalingpathwayindifferentstagesofdiabetesinrats显示文摘 | YangY NiW J CaiM etal | 2014 | JReceptSignalTransductRes2014，34，6： | 1 |
| 12 | Robust Estimator for Correlated Observations Based on Bifactor Equivalent Weights显示文摘 | YANGY SONGL XUT | 2002 | Journal of Geodesy2002，76，67： | 1 |
| 13 | Surface electrocardiographic characteristics of right and left atrial flutter显示文摘 | BochoeyerA YangY ChengJ | 2003 | Circulation2003，108，： | 1 |
| 14 | Comparingperformanceoftraditionalnon-treponemaltestsonsyphilisandnon-syphilisserum samples显示文摘 | GuWM YangY WangQZ etal | 2013 | IntJSTDAIDS2013，24，12： | 1 |
| 15 | Experimentalresearchontheeffectofbloodsug-arinComusofficinalisdifferentextract显示文摘 | YaoXY YangY DongFY | 1997 | 北京中医1997，，5： | 1 |
| 16 | Robust Estimation of Systematic Errors of Satellite Laser Range 显示文摘 | YangY Cheng M K Shum CK etal | 1999 | Joumal of Geodesy1999，73，： | 1 |
| 17 | Effects of applied voltages on hydroxyapatite coating of titanium by electrophoretic deposition显示文摘 | MengX Kwon TY YangY | | 0，，02： | 1 |
| 18 | Effects of activation of caspase-3 in cerebral ischemic reperfusion injury 显示文摘 | YANGY ZHANG S M FAN S Y | 2004 | Chin Med J2004，84，12： | 1 |
| 19 | Cyclophilin A up-regulates MMP-9 expression and adhesion of monocytes/macrophages via CD147 signalling pathway in rheumatoid arthritis显示文摘 | YangY Lu N Zhou J | 2008 | Rheumatology2008，47，9： | 1 |
| 20 | IsolationofPenicilliummarneffeifrom soilandwildrodentsinGuangdong,SEChina显示文摘 | LiX YangY ZhangX etal | 2011 | Mycopathologia2011，172，6： | 1 |
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