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关键词： 金属材料   物理化学   教学改革  

摘要： 物理化学是材料类专业必修的一门专业基础课。本文结合金属材料专业的特点,在精选教材与教学内容的基础上,对物理化学课程的教学方法进行了改进,并且建立了合理的考核方式。结果表明,通过教学改革激发了学生的学习兴趣,培养了学生主动学习的能力,极大地提高了教学质量。

关键词： 物理化学   教学改革   教学方法   实验课程  

摘要： 物理化学是化学化工及相关专业重要的基础理论课,对于培养高素质化学化工专业人才具有十分重要的作用。物理化学课程离不开实验教学。本文对物理化学及物理化学实验课程中的教学方法、教学内容、学生综合素质的培养等教学改革中常见的问题进行了探讨分析。

关键词： 物理化学   生命科学家   指南   推导过程   生物专业   学生  

摘要： 本书是***教授在多年教授物理化学的基础上编著的教材。它具有以下特点：学生能够独立阅读和理解，书中的公式或方程都有推导过程，主题和例证的选取适合生物专业学生，

关键词： 信息资源系统   应用化学   学科资源   物理化学   厦门大学   快车道   重点学科   研究人员  

摘要： 物理化学与应用化学重点学科的主要研究方向为表面／界面化学、反应化学、理论化学、谱学分析和分离科学。该学科的建设与发展促进了学科间的交叉和开展有关前沿学科领域的研究。而物理化学与应用化学信息资源系统为该领域研究人员提供丰富的信息资源，起到有益的引导和推动作用。该系统的不断发展和完善促进了国内物理化学与应用化学重点学科的发展，为探索解决该学科的重要理论问题和客观规律起到相当的支撑和帮助作用。

关键词： Ionic liquid analogue   Conductivity   Viscosity   Density   Hole-theory   CHOLINE CHLORIDE   GEL ELECTROLYTE  

摘要： The ionic liquid analogue containing MgCl2 based on choline chloride and glycerol was reported. The solubility of MgCl2 in the ionic liquid analogue based on choline chloride and glycerol was measured from T = 293-393 K. The empirical equation about the solubility and temperature was obtained. Thermal analysis showed that the ionic liquid analogue was stable from room temperature to 140 degrees C. The physical properties such as conductivity sigma, density rho and viscosity eta of ionic liquid analogue were measured as function of the content of MgCl2 and temperature. An empirical equation about the density (rho) and temperature was obtained. The ions transport behaviours are analyzed using hole-theory. It is shown that the conductivity of the ionic liquid analogues is controlled by the ion mobility and the suitable voids.

关键词： Badnapur   ground water   Physico-chemical parameters  

摘要： Physico-chemical parameters of groundwater around Badnapur, Dist. Jalna were studied in November 2008. The parameters selected for the study are temperature, pH, total hardness, total dissolved solids, chlorides, sulphate, calcium, magnesium, turbidity, dissolved oxygen, etc. [ABSTRACT FROM AUTHOR]

关键词： Ionic Liquids   Quaternary Phosphonium Compounds   Proton Conduction   Polymer Electrolyte Fuel Cells   QUATERNARY PHOSPHONIUM CATIONS   ELECTROCHEMICAL PROPERTIES   ELECTROLYTES  

摘要： Novel room-temperature ionic liquids based on trialkylphosphonium cations and their physicochemical characterizations are presented in this report. It was found that ionic liquids based on trialkylphosphonium cations together with bis(trifluoromethylsulfonyl)amide anion were lower melting, lower viscous and more conductive than the corresponding trialkylammonium ionic liquids. Particularly, triethylphosphonium bis(trifluoromethylsulfonyl)amide exhibited the lowest viscosity and highest conductivity in the trialkylphosphonium-based ionic liquids. The protic ionic liquid electrolyte based on triethylphosphonium bis(trifluoromethylsulfonyl)amide also showed relatively high conductivity when compared to the corresponding ammonium ionic liquid electrolyte. (C) The Electrochemical Society of Japan, All rights reserved.

关键词： Arasikere   Physico-chemical   Queen's lake  

摘要： The present study deals with the physico-chemical parameters of queen's lake of Arasikere taluk, Hassan disrict, Karnataka, India during the period of 2010 (October) to 2011 (November). The parameter studied comprised temperature, pH, total hardness, total dissolved solid, phosphate, chloride, free carbon dioxide, COD, BOD, total alkalinity, DO. [ABSTRACT FROM AUTHOR]

关键词： Phase diagram   Eutectics   Growth kinetics   Heat of mixing   Excess thermodynamic functions   DIRECTIONAL SOLIDIFICATION   PHYSICAL-CHEMISTRY   MONOTECTIC SYSTEM   CRYSTAL-GROWTH   PHASE-DIAGRAM   SUCCINONITRILE   EQUILIBRIUM   LIQUID  

摘要： The phase diagrams of binary systems of 4-aminoacetophenone (AAP) with each of benzoin (BN) and 4-nitrophenol (PNP) have been established by the thaw-melt method. This study shows the formation of eutectics. Accurate compositions of BN and PNP to form eutectic mixtures have been determined by the phase diagram study between BN-AAP and PNP-AAP in the entire range of compositions. The thermal properties of the eutectics, such as enthalpy of mixing, solid-liquid interfacial energy, entropy of fusion and excess thermodynamic functions were computed based on enthalpy of fusion values. The influence of undercooling on growth kinetics of pure components and their eutectics has been studied. The microstructural studies infer the influence of solid-liquid interfacial energy on the morphology of microstructures of eutectics.

关键词： 4-Methoxycinnamates   Thermal stability   Magnetic moments   Mn(II)   Co(II)   Ni(II)   Cu(II)   Nd(III)   Gd(III) complexes   PHASE-TRANSFORMATION   CINNAMIC ACID   CO(II)   MECHANISM   CRYSTAL   CU(II)   ZN(II)   SYSTEM   NI(II)  

摘要： In this study, 4-methoxycinnamates of Mn(II), Co(II), Ni(II), Cu(II), Cd(II), Nd(III) and Gd(III) were synthesised. From the infrared (IR) spectra analysis of complexes, sodium salt and according to the spectroscopic criteria the carboxylate groups seem to be bidentate chelating. The complexes of 4-methoxycinnamates lose the water molecules in one or two steps. The final products of their decomposition are oxides of the respective metals. The enthalpy values of dehydration process were determined. The FTIR spectra of the gas phase products indicate that the decomposition of the complexes is connected mainly with the release of molecules of water (H2O), carbon dioxide (CO2), carbon monoxide (CO), methane (CH4) and other hydrocarbons. The analysed compounds follow the Curie-Weiss law. The magnetic moment values experimentally determined change as follows: from 5.90 mu(B) to 6.27 mu(B) for Mn(II) complex, from 4.57 mu(B) to 4.99 mu(B) for Co(II) complex, from 3.68 mu(B) to 3.30 mu(B) for Ni(II) complex, from 1.87 mu(B) to 1.96 mu(B) for Cu(II) complex, from 3.06 mu(B) to 3.51 mu(B) for Nd(III) complex, and from 6.91 mu(B) to 6.90 mu(B) for Gd(III) complex.