农村创业人才专业素质结构与培养模式研究

运用素质教育理念深入研究了我国农业，农村，科技，教育的发展需求，研究了专科生在农业，农村就业岚位的专业素质要求，将高等农业专科教育的专业培养目标和素质结构定位于专业，开发，经营相结合的复合型农村创业人才，确定了新的专业培养规格，研究出一种新的培养模式，这一模式在实践中运用取得了显著成效。     

A Novel Mo—Doped Compound with Graphite—Like Structure：[H3O]2V3O8

1 INTRUDUCTION During the last few years, there has been much effort paid to the synthesis of new transition-metal oxides that might be active hosts for intercalation reactions. Vanadium and molybdenum in higher oxidation states with higher reacting ability tend to form polynuclear, anionic metal-oxygen clusters with an extraordinary variety of the relevant topology and electronic structures[1~3]. The preparation of the corresponding clusters is of special interest for different aspects …     

[Na2Mo8O26]^2—的合成及导电性

合成表征了[Na2Mo8O26]^2-，并测定了其导电性。     

SYNTHESIS OF NEW POLY （p—PHENYLENEVINYLENE） DERIVATIVES WITH IMPROVED SOLUBILITY

PPV－based copolymers with cyano group in the main chain have been synthesized by Wittig-type polycondensation of alkoxy-substituted dialdehydes and 4,4‘-bis(cyanomethyl)-substituted diphenyl ether:[-C6H4-O-C6H4-C(CN)=CH-C6H2(OR)2-C=C(CN)-]n(POPPV),The copolymers are highly soluble in common solvents and their super highly transparent homogeneous thin films can be formed by spin coating directly without heat treatment.The chemical structures are determined by NMR and IR spectroscopys and evaluated using photoluminescence,gel-permeation chromatography(GPC)and DSC(or TGA) methods.The incorporation of ether group into the PPV backbone has an interruption of the main-chain conjugation,that results in the blue-shift of electroluminescence spectra and enhancemnt the solubility.     

几种思维方法在物理学习中的应用

通过举例说明几种思维方法在物理学习中的应用。