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在词的发展过程中,遗民词是唐宋词光辉的最后一页。在宋元之际的词坛,遗民词人形成了江浙遗民词人和江西遗民词人两大创作群体。这两大群体的词作具有一定的一致性,如都具有隐逸的思想特征,创作题材上都由舞榭歌台、秦楼楚馆的男女艳情转为自然之景、隐居之乐等。但是,他们又各具特色,表现出一定的差异性。本文就意象的选取、词风的追求、语言的运用三个方面对南宋江浙遗民词和江西遗民词二者进行比较。 相似文献
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Rechargeablealkalinenickelbatteries (e.g.,Ni/Cd ,Ni/Fe,Ni/Zn,Ni/H2 andNi/MH)areusuallypos itivelimited ,sothatthecapacityandcyclelifeofthecellsaredeterminedmainlybytheperformancesofnickelelectrodes.Withtheirhighenergydensityandlowcostrelativetothatofconventionalsinterednickelelectrodes,pastednickelelectrodeshavenowbeenwidelyusedincommerciallyavailableNi/MHbatteries[1 ,2 ] .Asthedis charged stateactivematerialofthepastednickelelec trodes,thepropertyofsphericalnickelhydroxideisthekeytodeter… 相似文献
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Chemically precipitated β-type nickel hydroxide powder was surface-modified by electroless deposition of Co-Zn coatings,and physical properties of both the modified and unmodified nickel hydroxide were characterized by scanning electron microscopy (SEM), specific surface area (BET), X-ray diffraction (XRD) and Xray photoelectron spectroscopy (XPS). It has been found that Co and Zn components of the surface electroless coatings exist in the oxidized state. Electrochemical performances of pasted nickel electrodes using the modified nickel hydroxide as an active material were investigated, and compared with those of the electrodes prepared with the unmodified nickel hydroxide. Charge/discharge tests show that the modified nickel hydroxide electrodes exhibit better performances in the charge efficiency, specific discharge capacity and active material utilization.Their resistance to swelling with cycling is also superior to that of the unmodified nickel hydroxide electrodes.Cyclic voltammetric (CV) studies indicate that the modified electrodes have a higher electrochemical activity,and the porous pasted nickel electrodes have some distinguished CV characteristics in comparison with those of the thin film nickel electrodes. 相似文献
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