DApBM—V（Ⅴ）—Mn（Ⅱ）—Twenn—80体系光度法测定钒（Ⅴ）

在磷酸介质中，在Ｍｎ和Ｔｗｅｅｎ－８０存在下，ＤＡｐＢＭ与钒生成橙黄色化合物，产物至少可稳定３．５ｈ，最大吸收波长为４８５ｎｍ。摩尔吸光系数ε＝４．０１×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１和ε＝１．５７×１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，钒量在０．５－３．０μｇ／２５ｍｌ及３．０－１０．０μ／２５ｍｌ间符合比尔定律。     

介子与核碰撞的B—E关联及其方向性

本文研究了２５０Ｇｅｖ／ｃ下π＾＋（Ｋ＋）同质子，核碰撞的Ｂｏｓｅ－Ｅｉｎｓｔｅｉｎ关联，用Ｑ＾－ｖＫｙ（Ｑ）分布拟合实验数据得出：当靶粒子为ｐ时，ｒ０＝２．１ｆｍ；发靶为Ａｌ核时，ｒ０＝３．５ｆｍ；当靶为Ａｕ核时，ｒ０＝４．１ｆｍ。     

异烟酸铬（Ⅲ）配合物热分解脱水反应非等温动力学研究

本文对Ｃｒ２（Ｉｎｉｃ）３Ｃｌ３（Ｈ２Ｏ）３．５Ｈ２Ｏ配合物进行了热分解脱水反应非等温动力学研究，运用Ａｃｈａｒ法与Ｃｏａｔｓ－Ｒｅｄｆｅｒｎ法，推断该热分解脱水反应力三级反应，其动力学方程为ｄα／ｄｔ＝Ａｅｘｐ（－Ｅ／ＲＴ）．０．５（１－α）＾３，动力学补偿效应表达式为１ｎＡ＝０．３０２７Ｅ－１．２９７９。     

具有两个相互无公度调制频率的一维无公度链的电子态性质

采用逐级有理数近似，通过对带宽和波函数的多分形谱ｆ（α＿ｌ）￣α＿ｌ的渐近行为的研究，探讨了一个具有两个相互无公度的调制频率Ｑ＿１和Ｑ＿２的一维无公度电子态模型：ε＿ｎ＝Ｖ＿０［ｃｏｓ（Ｑ＿１ｎ）＋ｃｏｓ（Ｑ＿２ｎ）］，其中Ｑ＿１＝２π／λ和Ｑ＿２＝２π／λ￣２，且，结果表明，除了个别边态的反常行为外，Ｖ＿０＜１．００时的本征态都是扩展态，Ｖ＿０＝１．００时的本征态都是中间态，而Ｖ＿０＞１．００的所有本征态都是局域态，即在Ｖ＿０＝１．００时存在一个金属－绝缘体转变。这种性质与Ａｕｂｒｙ模型十分相似。     

Al3＋替代对Mg－Mn微波铁氧体性能的影响

研究用Ａｌ３＋替代Ｆｅ３＋，对Ｍｇ－Ｍｎ尖晶石微波铁氧体性能的影响，结果表明，随Ａｌ３＋替代量增加，铁氧体的４πＭｓ下降，电阻率增加，介电损耗和磁损耗下降。当ｘ＝０．４时，４πＭｓ在６００～６５０ＫＡ／ｍ，介电损耗和磁损耗都较小，适合于Ｓ波段器件的使用要求。用化学共沉法制备粉料，并用普通氧化物工艺制备Ｍｇ－Ｍｎ铁氧体，研究了烧结温度和气氛对铁氧体性能的影响。当ｘ＝０．４时，可制得如下性能的铁氧体：４πＭｓ：６００－６５０ＫＡ／ｍ；Ｔｃ：２５０℃；ρ：４．５×１０８Ω·ｃｍ；ｔｇδｅ：１．１×１０－２（ｆ＝２６ＭＨＺ）；ｔｇδＭ：１×１０－２（ｆ＝９ＭＨＺ）；ε：１１．０；Ｄ：４．６８×１０３ｋｇ／ｍ３．     

DApBM-V(Ⅴ)-Mn(Ⅱ)-Tween-80体系光度法测定钒(V)

在磷酸介质中，在Ｍｎ（Ⅱ）和Ｔｗｅｎ－８０存在下，ＤＡｐＢＭ与钒（Ⅴ）生成橙黄色化合物，产物至少可稳定３．５ｈ．最大吸收波长为４８５ｎｍ．摩尔吸光系数ε＝４．０１×１０５Ｌ·ｍｏｌ－１·ｃｍ－１和ε＝１．５７×１０５Ｌ·ｍｏｌ－１·ｃｍ－１．钒（Ⅴ）量在０．５～３．０μｇ／２５ｍｌ及３．０～１０．０μｇ／２５ｍｌ间符合比尔定律．该体系灵敏度高，选择性较好，用于中草药中痕量钒（Ⅴ）的测定，结果满意     

异烟肼-次氯酸钠-鲁米诺化学发光反应的研究

利用异烟肼可增强次氯酸钠－鲁米诺体系的化学发光,结合流动注射技术,建立了一种新的异烟肼的流动注射化学发光分析方法．异烟肼在８．０×１０－６～１．０×１０－８ｇ／ｍＬ浓度范围内与化学发光信号强度呈线性关系．检出限为１．７×１０－９ｇ／ｍＬ．ＲＳＤ为１．９％（ｎ＝１１,ｃｓ＝５×１０－７ｇ／ｍＬ）．     

4－（8－氨基喹啉－5－偶氮）－苯磺酸钠的极谱行为研究

研究了４－（８－氨基喹啉－５－偶氮）－苯横酸钠（ＳＡＯＡＢＳ）的极谱行为。在０．０２ｍｌ／ＬＮＨ＿３·Ｈ＿２Ｏ－０．３６ｍｏｌ／ＬＮＨ＿４Ｃｌ的缓冲溶液中，ＳＡＱＡＢＳ产生两个明晰的阴极化极谱波，其二次导数波的峰电位分别为－０．５２Ｖ和－１．３０Ｖ（Ｖｓ．ＳＣＥ）。用ＳＡＱＡＢＳ的第一个波作为定量分析的基础，其线性范围为１．０×１０￣（－６）～８．０×１０￣（－５）ｍｏｌ／Ｌ。氧不干扰ＳＡＱＡＢＳ的测定。还研究了ＳＡＱＡＢＳ的电极过程及反应机理。     

N型GaAs单晶表面复合速度的宽谱光伏测算

提出适用于可见光全波段的光伏测算ＧａＡｓ单晶表面复合速度的新方法．实验结果表明，对于掺Ｓｉ的Ｎ型弱简并ＧａＡｓ单晶（ｎ０＝２．０×１０１７ｃｍ－３），其表面复合速度Ｓｐ＝１．６×１０５ｃｍ·ｓ－１，与有关报道基本一致．     

防落素B《Cl(C_6H_4)OCH_2COOC_4H_9》分子和晶体结构

防落素Ｂ系薄片状无色透明晶体，晶体的空间群为Ｃｃｌ５－Ｐ（ｚ１）／ｎ晶胞参数以ａ＝７．９５８（２）Ａ；ｂ＝３１．８５０（６）Ａ；ｃ＝５．２５０（３）Ａ；β＝１０６．５７（２）；Ｚ＝４；ρｏｏｓ＝１．２５克／厘米３，ρｏａｉｃ＝１．３４５克／厘米３，在四园衍射仪上用Ｍ０－Ｋα射线收录Ｉ＞１σ（Ｉ）独立衍射点１２９９个，晶体结构由直接法解出，经全矩阵最小二乘法精修，偏离因子＝０．１０２．结构分析表明，化合物中，苯环、支链羧基和正丁基三部分分别为三个平面；苯环与羧基平面交角为８、２°，苯环与正丁基平面交角为９．３°，羧基与正丁基平面交角为５．６°，苯环的－Ｃ－Ｃ－键平均键长为 １．３７０Ａ，化合物分子轴沿着晶胞ｂ轴方向排布。     

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

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