11—系列杂多钨硅酸盐异构体的氧化还原性质研究

通过极谱和循环伏安法，结合红外光谱、紫外光谱和Ｘ射线光电子能谱，研究了通式为β２—Ｋ６—ｎＨｎ［ＳｉＷ１１Ｍ（Ｈ２Ｏ）Ｏ３９］·ｘＨ２Ｏ（Ｍ＝Ｍｎ２＋．Ｆｅ３＋，Ｃｏ２＋，Ｎｉ２＋Ｃｕ２＋Ｚｎ２＋）杂多钨硅酸盐在溶液中的氧化还原性质，杂多阴离子的极谱半波电位Ｅ１／２。顺序为Ｃｕ２＋＞Ｍｎ２＋＞Ｆｅ２＋＞Ｚｎ２＋＞Ｃｏ２＋＞Ｎｉ２＋．发现杂多阴离子的半波电位Ｅ１／２与其组分中的过渡元素的电负性Ｘ有线性关系，讨论了过渡元素对杂多阴离子氧化还原性的影响。     

关于Hermite-Fejēr插值算子的p方收敛

在以第二类Ｃｈｅｂｙｓｈｅｖ多项式Ｕｎ（ｘ）的零点ｘｋ＝ｃｏｓθｋ＝ｃｏｓｋπｎ＋１，（ｋ＝１，２，…，ｎ）为插值节点的条件下，讨论了Ｈｅｒｍｉｔｅ－Ｆｅｊēｒ插值算子在［－１，１］上以（１－ｘ２）１２为权函数的ｐ方收敛问题，得到的收敛阶为Ｏ（１）ｗ１ｎＰ＋Ｂｎｐ｛｝．     

分布函数间散布序的性质

设Ｆ、Ｇ是两个分布函数，记Ｘ＾＋Ｆ（ａ）＝ｓｕｐ｛ｘ：Ｆ（ｘ）＜ａ｝，ＸＦ（ａ）＝ｉｎｆ｛ｘ：Ｆ（ｘ）＞１｝，ＸＦ（ａ）＝Ｘ＾＋Ｆ（ａ）＋ＸＦ（ａ））／２，α∈（０，１），［３］提出了分布函数间的一种散布序。     

杂多金属氧酸盐〔XW11Z（H2O）O39〕^n—的嵌入化学研究

采用高温（１２０℃）水热合成方法,制备了层柱双氢氧化物Ｎｉ２Ａｌ－ＣＯ３;以此为反应原料,同过渡金属单取代型杂多金属氧酸盐阴离子〔ＸＷ１１Ｚ（Ｈ２Ｏ）Ｏ３９〕＾ｎ－（略写为ＸＷ１１Ｚ）进行离子交换反应,合成了多金属氧酸盐柱撑层柱双氢氧化物Ｎｉ２ＡｌＸＷ１１Ｚ（其中,Ｘ＝Ｓｉ＾４＋,Ｇｅ＾４＋,Ｂ＾３＋;Ｚ＝Ｃｕ＾２＋,Ｃｏ＾２＋,Ｎｉ＾２＋）;通过元素组成分析、ＸＲＤ、ＦＴ／ＩＲ等手段,对合成化合     

Bazilevich函数及其导数的一类α阶组合

设Ｆ（ｚ）＝ｚ＋Ａｎ＋１ｚ＾ｎ＋１．．．，是单位圆内的一种Ｂａｚｉｌｅｖｉｃｈ函数。考察由组合式（ｆ（ｚ＿／ｚ）＾ａ＝（Ｆ（ｚ）／ｚ）＾ａ＋λｚ／（１－λ）［（Ｆ（ｚ）／ｚ＾ａ］＇定义的ｆ（ｚ）的性质，其中ａ＞０，０＜λ≤１／１＋ａ证明了１／ｎ√Ｒ０ｆ仍然在Ｆ（ｚ）所在的族中，其中Ｒ０＜１是一个二次方程的正根。     

Fourier-Jacobi级数的强求和

设函数ｆ在区间［－１,１］上关于权函数（１－ｘ）＾α（１＋ｘ）＾β（α,β〉１）可积,以Ｓαｎ＋１／２（ｆ）表示它的Ｆｏｕｒｉｅｒ－Ｊａｃｏｂｉ展开的临界阶Ｃｅｓａｒｏ平均,给出了Ｓ＾αｎ＋１／２（ｆ）可以用Ｃｅｓａｒｏ方法强性求和一个充分条件,主要结果推广了李中凯博士论文中的一个定理。     

混合金属,四面体型RuCo3羰基簇合物的取代研究

簇合物ＮＥｔ４ＲｕＣｏ３（ＣＯ）１２［１］分别与配体三苯基膦和二苯基膦反应，得到双取代产物ＮＥｔ４Ｃｏ３（ＣＯ）１０（ＰＰｈ３）２《３》和ＮＥｔ４Ｃｏ３（ＣＯ）１０（ＰＰｈ２Ｈ）２［５］。双取代产物进一步质子化，则得到具有相应结构的中性簇合物ＨＲｕＣｏ（ＣＯ）１０（ＰＰｈ３）２［４Ａ］和ＨＲｕＣｏ（ＣＯ）１０（ＰＰｈ２Ｈ）２。它们的结构通过元素分析，红外，＾１ＨＮＲＭ．＾３１ＰＮＭＲ的关反应确认。     

14种二茂铁亚胺类化合物的制备和紫外—可见光谱研究

报道了９种取代苯胺基亚胺二茂铁类化合物Ｒ－Ｎ＝ＣＨＦｃ［Ｒ为Ｃ６Ｈ５－ｎＸｎ（Ｘ＝Ｈ，４Ｂｒ４ＳＯ３Ｈ，４ＯＣＨ３，２，４（ＮＯ２）２和２，４（ＮＯ２）２Ｃ６Ｈ４ＮＨ］及５种取代苯亚甲基亚胺二茂铁类化的Ｘｎ（２ＯＨ）Ｃ６Ｈ４－ｎＣＨ＝Ｎ－Ｆｃ［Ｘ＝Ｈ，５－Ｂｒ，５－ＮＯ２，３ＮＯ２５Ｂｒ，３，５（ＮＯ２）２］的制备，测定了它们的紫外光谱，指定了谱带的归属，并对谱带的位移从理论上予以解释。     

多滞量具有正负系数的一阶中立型时滞微分方程的稳定性

本文考虑一阶中立型时滞微分方程（１）：［ｘ（ｔ）＋Σ＾ｎ１ｉ＝１ｃｉ（ｔ）ｘ（ｔ－ｒｉ）］＾１＋Σ＾ｎ２ｋ＝１ｐｋ（ｔ）ｘ（ｔ－τｋ）－Σ＾ｎ３ｊ＝１ｑｉ（ｔ）ｘ（ｔ－σｊ）＝０的稳定性。这里ｐｋ（ｔ），ｑｉ（ｔ）∈Ｃ（［ｔ０，＋∞），Ｒ），γｉ，τｋ，σｊ均为非负实数，我们建立了此方程的一个稳定性结果，较文献［６］讨论得更广泛，所得结论更深刻。     

Finsler—Hadwiger不等式的高维推广

本文利用了文［１］和［２］中的两个不等式，将著名的Ｆｉｎｓｌｅｒ－Ｈａｄｗｉｇｅｒ不等式ａ（－ａ＋ｂ＋ｃ）＋ｂ（ａ－ｂ＋ｃ）＋ｃ（ａ＋ｂ－ｃ）≥４√３Δ推广到ｎ维欧氏空间Ｅ＾Ｒ中去。     

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.     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

正~~