熵变

Mn系磁熵变材料的制备及性能研究

Investigation on the Preparation and Magnetic Entropy Change Properties of Mn Alloys

标准氢电极反应绝对熵变的测定

Determination of the Absolute Entropy Change of the Standard Hydrogen Electrode

谈焓变和熵变对自发过程的影响及其对△G的相对贡献

A Discussion on the Effect of Enthalpy and Entropy Change upon Rational Process and Its Relative Contribution

LaMn（1.8）Fe（0.2）Ge2的低场磁熵变

Magnetocaloric Effect of LaMn_ ( 18 ) Fe_ ( 0.2 ) Ge_2 for A Low Field Change

La1－zRz（Fe1－x－yCoxAly）（13）金属间化合物磁熵变特性研究

Study on the Magnetic Entropy Change Properties of La_1 - _zR_z ( Fe_1-x-yCo_xAl_y ) _ ( 13 ) Intermetallic Compounds

稀土合金GdCo2与Gd6Fe（23）的磁熵变测定

Determination of Magnetic Entropy Changes for GdCo_2 and Gd_6Fe_ 23

Gd5Si2Ge2巨磁熵变合金的粒度效应研究

Study on the granularity effect of Gd_5Si_2Ge_2 giant magnetic entropy change alloy

随着Fe含量的减少，样品的居里温度上升，但是其磁化强度和最大磁熵变值减小。

The Curie temperature is increased , while the magnetization and the maximum magnetic entropy changes are decreased with reducing Fe concentration .

快淬低纯Gd5Si2Ge2合金的结构和磁熵变

The crystal structure and magnetic entropy change of fast-quenched low purity Gd_5Si_2Ge_2 alloy

同时，磁熵变和直接测量的绝热温变也随着B含量的增加而增大了，在低磁场具有较大的磁热效应。

Simultaneity , the magnetic entropy change and adiabatic temperature change which measured directly also increase as increasing B content , and show large magnetocaloric effect at lower magnetic field .

Pr2Fe（17-x）Alx系列化合物的结构与磁熵变

Structure and Magnetic Entropy Changes of Pr_2Fe_ ( 17-x ) Al_x Compounds

计算了TRPO萃取Fe（Ⅲ）的反应焓变ΔH，熵变ΔS及表观平衡常数K。

The H , S and apparent equilibrium constant K of the reaction that Fe ( III ) is extracted by TRPO have been calculated .

复合材料Mg/MWNTs氢化物的焓变和熵变的绝对值均低于纯Mg，分别降低了10.51%和3.50%；

The absolute values of enthalpy variable and entropy variable for the composite Mg / MWNTs hydride are lower about 10.51 % and 3.50 % than that of pure Mg .

H原子对Gd5Si（1.72）Ge（2.28）合金低场磁性能和磁熵变的影响

Effect of Hydrogen on the Magnetic Properties and Magnetic Entropy Change of the Gd_5Si_ ( 1.72 ) Ge_ ( 2.28 ) Alloy under Low Magnetic Field

Er（2-x）CexFe（17）金属间化合物的磁熵变特性研究

Study on Characteristics of Magnetic Entropy Changes in Er_ ( 2-x ) Ce_xFe_ ( 17 ) Intermetallic Compounds

吸积盘中心黑洞的熵变与B-Z过程

Entropy Change of Central Black Holes of Accretion Disks and B Z Process

研究铁基La（Fe，Si）（13）化合物的磁性、磁场诱导的熵变及相变性质等可以为磁制冷样机的研制提供指导。

In this paper , we mainly researched magnetic properties , magnetic field-induced entropy change and phase transition in Fe-based La ( Fe , Si ) _ ( 13 ) compounds .

室温磁致冷合金Pr2Fe（17-x）Cox的结构、磁性和磁熵变

Structure , Magnetic Properties and Magnetic Entropy Changes of Room Temperature Magnetic Refrigeration Alloys Pr_2Fe_ ( 17-x ) Co_x

Er（2-x）PrxFe（17）磁致冷合金在室温区的磁熵变

Magnetic Entropy Changes of Er_ ( 2-x ) Pr_xFe_ ( 17 ) Magnetic Refrigeration Alloys at Room Temperature Range

本论文针对能否用Maxwell关系计算一级相变体系磁熵变的问题进行了适当的讨论。

This paper has carried on the proper discussion about whether Maxwell 's relationship could calculate the magnetic entropy changes of the first-order phase transition .

P-V图上直线准静态过程中的焓变与熵变

Changes of enthalpy and entropy in the quasi-static process as a straight line in the P-V chart

这是扩散中的熵变，气体的自由扩散，从V1到。

That 's the change in entropy in expansion , free expansion of a gas , V2 from V1 to V2 .

根据蛋白质热变性时的补偿温度和构象变化熵变Δ（ΔS°）的大小，讨论了蛋白质在阳离子交换色谱和固定Zn的金属螯合色谱体系中的热稳定性。

According to the compensation temperature and the entropy change of conformation change ((Δ(Δ S °))), the thermostability of proteins was discussed in cation-exchange and immobilized Zn ~ ( 2 + ) metal ( chelate ) chromatography .

由CPR与HSA反应焓变、熵变，确定CPR与HSA的结合主要是静电引力。

The interaction between CPR and HSA was attributed to static - electricity gravitation which was confirmed by the calculation results of enthalpy and entropy for this reaction .

以XY型性染色体为模型，运用信息论方法研究了性连锁群体平衡的熵变规律。

Based on the model of XY type sex chromosome , the entropy variation regularity of sex linked population equilibrium was studied by using the information theory method .

吸附自由能变ΔG表明，NDA150具有更为优越的微孔结构。吸附熵变ΔS<0说明吸附质分子在吸附树脂表面上的运动相比溶液中受到更大的限制。

The study on the free energy of adsorption manifests that there is a rather better pore structure in NDA-150 . The negative values of the adsorption entropy Δ S indicate the more restricted mobility of the sorbic acid on the resin surface than in solution .

据此原理说明封闭体系经历一个任意过程，体系的熵变等于熵流dSe和熵产生dSi之和。

It shows that when a closed system has changed a change of entropy of system equals the sum of flow of entropy and entropy production .

La-Fe基NaZn（13）型化合物的磁场诱导熵变研究

Magnetic Field Induced Entropy Change for La-Fe Based NaZn_ ( 13 ) - Typed Compounds

分析表明，Maxwell关系可用于一级相变体系的磁熵变计算，并且在实际体系中，与Clausius-Clapeyron公式相比可以给出更合理的结果。

The results from analysing indicated that Maxwell 's relationship could calculate above magnetic entropy changes , and it could give more reasonable results in the actual system than Clausius-Clapeyron formula .

吸附反应的焓变ΔHom和熵变ΔSom均小于零，为放热反应，反应向更有序状态进行；

The thermodynamic standard enthalpy change Δ H ~ o_m and entropy change Δ S ~ o_m of adsorption reaction were both below zero , suggesting that adsorption reaction was an exothermic one and tended to be more in ordered state .