月桂胺从盐酸介质中萃取Au（Ⅲ）

研究了月桂胺的三氯甲烷溶液从盐酸介质中对ＡｕＣｌ＾－４的萃取，确定了萃合物的组成为ＢＨ＾＋，ＡｕＶＣｌ＾－４测得ｌｇＫｅｘ＝２．１８。     

利用二苯并—18—冠—6从硫氰酸盐溶液中萃取铜（Ⅱ）的研究

报道了在二苯并－１８－冠－６（ＤＢＣ）的１,２－二氯乙烷溶液中,从硫氰酸盐溶液萃取铜时,冠醚浓度,硫氰酸盐浓度和氢离子浓度对萃取的影响,结果表明,当硫氰酸钾浓度大大超过铜浓度和氢离子浓度（０．１ｍｏｌ／Ｌ）时,ＤＢＣ可有效地萃取铜,作者从实验结果推断其萃合物的组成为Ｃｕ（ＳＣＮ）＾－３Ｋ＾＋（ＤＢＣ）２（ｏ）。     

AEHPA从稀硫酸溶液中萃取铁的研究

该文研究了烷左膦酸单－２－乙基己酯从稀硫酸溶液中萃取铁伯机理和萃取平衡时间，并通过紫外可见光谱和红外光谱分析，推断了萃合物可能的分子结构，研究表明，萃取机理与溶液中铁离子的存在形式有关，Ｆｅ＾３＋、Ｆｅ（ＳＯ４）２＾－和Ｆｅ２（ＯＨ）４＾２＋皆可参与萃取。当ｐＨ值小于１．５，铁离子浓度不大于０．０１ｍｏｌ／Ｌ时，主要为Ｆｅ＾３＋，Ｆｅ（ＳＯ４）２＾－参与的２种萃取机理，萃取平衡时间分别约为１０ｍｉ     

石油亚砜中PSO3D,PSO3E的极性与萃取Au^3＋的性 ...

研究了石油亚砜其中２个组分ＰＳＯ３Ｄ，ＰＳＯ３Ｅ萃取Ａｕ＾３＋的性能。实验表明：在实验条件下，极性较小的亚砜的萃取Ａｕ＾３＋（盐酸介质）能力大于极性大的亚砜；亚砜硫质量分数低，分子量较大的亚砜，其萃金的萃取率越大。     

二-(2-乙基己基)-膦酸与C_(5～7)羟肟酸自硫酸介质中协同萃取Ga~(3 )研究

研究了从硫酸介质中用二－（２－乙基己基）－磷酸（Ｄ２ＥＨＰＡ,Ｈ２Ａ２,Ｐ２０４）与 Ｃ５～７,羟肟酸（ＨＲ）协同萃取Ｃａ３＋的影响因素及其机理,经斜率法和饱和容量法确定了Ｃａ３＋萃合物的组成,计算了其表观平衡常数．并利用红外光谱探讨了萃合物的结构．结果发现,在高酸度Ｈ１ＳＯ４介质中体系有明显的正协萃效应．Ｇａ３＋离子的萃取率显著提高．其机理是以离子交换的形式进行的,萃合物的结构式为Ｇａ（ＨＡ２）Ｒ２．     

石油亚砜萃取铟的机理研究

研究表明，在盐酸介质中，石油亚砜萃取铟的机理与水相酸度有关。低酸度时，亚砜通过氧原子与ＩｎⅢ）配位生成萃合物ＩｎＣｌ３，２ＰＳＯ．Ｈ２Ｏ，高酸度时，亚砜则通过氧原子配位溶剂化，并与Ｉｎ（Ⅲ）反应生成离子缔合物［ＰＳＯ→Ｈ］＾＋［ＩｎＣｌ４．２ＰＳＯ］＾－。     

二（2－乙基已基）亚砜萃取钼的机理研究

研究了二（２－乙基己基）亚砜的甲苯溶液从盐酸介质中萃取钼（ＶＩ）的性能，用等摩尔系列法和饱和萃取法确定萃合物的组成为ＨＭｏＯ２Ｃｌ３（ＳＯ）３．讨论了溶液酸度、钼浓度、萃取剂浓度、盐析剂浓度、温度等对萃取平衡的影响，考察了萃合物的紫外光谱和红外光谱．     

二（2—乙基己基）亚砜萃取钼的机理研究

研究了二（２－乙基己基）亚砜的甲苯溶液从盐酸介质中萃取钼的性能，用等摩尔系列法和饱和萃取法确定萃合物的组成为ＨＭｏＯ２Ｃｌ３（ＳＯ）３，讨论了溶液酸、浓度、盐析剂浓度、温度等对萃取平衡的影响，考察了萃合物的紫外光谱和红外光谱。     

利用二环己基—18—冠—6和二—（2—乙基己基）磷酸协同萃取 …

研究了利用二环己基－１８－冠－６（ＤＣ１８Ｃ６）和二－（２－乙基己基）磷酸（ＨＤＥＨＰ）的硝基苯溶液,在硝酸介质中对六价铀的协同萃取行为,通过实验确定了协萃反应方程式,而且测得了在硝酸介质中萃取平衡的表观常数值。     

利用二环己基-18-冠-6和二-(2-乙基己基)磷酸协同萃取硝酸铀酰的研究

研究了利用二环己基１８冠６（ＤＣ１８Ｃ６）和二（２乙基己基）磷酸（ＨＤＥＨＰ）的硝基苯溶液，在硝酸介质中对六价铀的协同萃取行为．通过实验确定了协萃反应方程式，而且测得了在硝酸介质中萃取平衡的表观常数值．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with