一种单面评估表面细小凹坑的波型转换新方法

提出一种根据小型转换原理单面评估表面半球形细小凹坑直径的新方法，用自制的电磁超声换能器测定了纵波（Ｐ波）正入射至多种不同直径的凹坑上后转型横波（ＳＶ波）的标准散射指向图，提出了以４５°和６０°散射方向ＳＶ波的振幅比作为凹坑直径评估的依据，凹坑评估测量值与实际值符合较好。     

胆绿素的极谱分析研究

介绍了ＮａＯＨ溶液中（ｐＨ＞１１）利用胆绿素的阳极波的极谱分析方法，研究发现胆绿素在－０．４０Ｖ（ＶＳ．ＳＣＥ）左右产生一灵敏、稳定的极谱阳极波，该波的二阶导数与胆绿素溶液的浓发在２×ｌ０￣（－７）～１．８×ｌ０￣（－６）ｍｏｌ·Ｌ￣（－１）范围内成线性关系，其检测限为８×ｌ０（－８）ｍｏｌ·Ｌ￣（－１），并且在胆红素或０．０２ｍｇ·Ｌ￣（－１）白蛋白共存时无干扰，可用于胆绿素的测定，并对胆绿素的极谱阴极波和循环伏安图进行了研究，考察了胆绿素在－０．４０Ｖ（ＶＳ．ＳＣＥ）处的可逆波和－０．９８Ｖ（ＶＳ．ＳＣＥ）处的过氧化氢催化波的性质，对胆绿素的电化学反应提出了可能的机理。     

X线头影测量分析及计算机处理在正颌外科的应用

根据正颌外科的临床需要，采用自然头颅位拍摄Ｘ线头影测量片，以通过鼻点的真正垂直线为基准平面，充分反映颌面部畸形部位和有助于正颌手术设计的１６个角度及１０个距离为测量项目，对２０名广东籍面容端正、咬正常成年女性的Ｘ线头影测量片统计分析，获得了一系列可运用于临床使用的正常标准值，其中：ＳＮ／ＶＰ（８４．５±３．６）°、ＮＡ／ＶＴ（５．５±２．１）°ＮＢ／ＶＰ（５．３±１．１）、ＮＰ／ＶＰ（４．０±２．１）°、ＥＬ／ＶＰ（１８．８±３．８）°。并建立了一套新的具有颅颌面畸形分析、设计模似手术及术后面型预测等功能的正颌外科计算机处理系统。     

钼（VI）－高铁试剂－溴化十六烷基三甲胺体系络合物吸附波的研究

在ｐＨ４．４的ＨＣＯＯＨ－ＨＣＯＯＮａＡ介质中，钼（ＶＩ）与高铁试剂（Ｆｅｒｒｏｎ）生成络合物，在ＣＴＭＡＢ存在下，于－０．４８Ｖ（ｖｓ．ＳＣＥ）出现一尖锐、灵敏的极谱波。钼含量在４．２×１０－８～５．７×１０－６ｍｏｌ／Ｌ范围内与峰高呈线性关系。用多种电化学方法研究了极谱波的性质及电极反应机理，证明络合波为吸附波。峰电流由中心离子Ｍｏ（ＶＩ）还原产生。络合物组成为Ｍｏ（ＶＩ）：Ｆｅｒｒｏｎ＝１：１。试验了三十多种离子对峰电流的影响。方法用于自来水中钼的测定，结果满意。     

Cu（Ⅱ）钍试剂络合物吸附波

在ＮａＯＨ（０．０３２ｍｏｌ／Ｌ）介质中，钍试剂（Ｔｈｏｒｏｎ简记为Ｔｏｒ）给出一个吸附波，Ｅｐ＝－０．４８Ｖ（Ｖｓ·ＳＣＥ．），在该介质中Ｃｕ－Ｔｏｒ络合物给出一个很灵敏的络合物吸附波，Ｅｐ＝－０．５０Ｖ．峰电流与Ｃｕ（Ⅱ）的浓度在０．０４～０．７２μｇ／ｍＬ范围内成正比。研究了该波的特性与机理。     

杂多酸荷移跃迁盐系列研究（Ⅰ）—Keggin结构杂多酸的荷移跃迁盐的合成和表征

利用电解结晶法合成了Ｋｅｇｇｉｎ结构杂多酸荷移跃迁盐（ＢＥＤＴ－ＴＴＦ）８［ＰＭｏ３ＮｂＷ８Ｏ４０］．Ｘ－射线衍射测定为单斜晶系．晶胞参数ａ＝１４．２０（０）×１０（－８）ｃｍ；ｂ＝４３．３９（０）×１０（－８）ｃｍ；ｃ＝１３．５５（６）×１０（－８）ｃｍ；β＝９１°；Ｖ＝８．３５３×１０（－２１）ｃｍ３．该化合物具半导体性质。σｒ．ｔ＝３．７×１０（－２）Ｓｃｍ（－１）．ＥＡ＝１６０ｍｅＶ．变温磁化率测定表明其为Ｓｐｉｎ－Ｐｅｉｅｒｌｓ体系．     

金属-氨基多羧酸类配合物分子和晶体结构的研究(Ⅳ)——〔H_6edta〕〔V~Ⅲ(edta)(H_2O)〕_2.4H_2O配合物的合成及结构测定

本文报导了〔Ｈ６ｅｄｔａ〕〔ＶⅢ（ｅｄｔａ）（Ｈ２Ｏ）〕２·４Ｈ２Ｏ（ｅｄｔａ４－＝乙二氨基四乙酸根）配合物的合成及它的分子结构和晶体结构的测定．得出的具体分析结果如下：三斜晶系，Ｐ１—空间群，ａ＝７．７２４（５），ｂ＝１２．０９２（４），ｃ＝１２．６２２（４），α＝７２．７９（３）°，β＝８１．７９（４）°，γ＝７３．８０（４）°，Ｖ＝１０７９．１（８）３，单位晶胞中的分子数为１，Ｄｃ＝１．７４ｇ·ｃｍ－３，Ｄｏ＝１．７２ｇ·ｃｍ－３，μ＝０．５９５ｍｍ－１，Ｆ（０００）＝５３９，在３°≤２θ≤５５°的范围内共收集４２６８个衍射数据，对２２３８个独立衍射点，它的Ｒ和Ｒｗ值分别为０．０４８和０．０２９．其中〔ＶⅢ（ｅｄｔａ）（Ｈ２Ｏ）〕－是一个七配位的近似面冠三方柱（Ｃ２ｖ－ＭＴＰ）体结构．由此可知具有非对称电子结构（ｄ２）的ＶⅢ六齿配体的ｅｄｔａ４－（＝乙二胺四乙酸根）和作为第七个配体的水分子易形成七配位结构的配合物．     

超立方体上的奇异值分解

本给出了在超立方体连接的单指令流多数据流（ＳＩＭＤ）机器上进行矩阵奇异值分解（ＳＶＤ）的算法，对ｍ×ｎ／２个处理单元的ＳＩＭＤ机器上进行ＳＶＤ，时间复杂度为Ｏ（ｌｏｇｍ．ｎ．ｌｏｇｎ）。本还给出了大型矩阵在固定大小的ＳＩＭＤ机器上求解ＳＶＤ的行压缩与列分割方法。     

定域超对称不可见轴子──一种可能的暗物质

提出了一个超对称ＳＵ（３）×ＳＵ（２）×Ｕ（１）模型，在此模型中强ＣＰ不守恒可以用ＳＦＳＺ机制消除．Ｕ（１）ｐＱ对称破坏的标度接近几何等级质量，所以轴子质量约为１０－５ｅＶ．轴子与物质的耦合非常弱且它的寿命足够长，因此此类轴子可以作为一种可能的暗物质．     

TvNPV多角体蛋白与病毒粒子蛋白在银胶溶液中的SERS谱比较研究

栗黄枯叶蛾核型多角体病毒（简称ＴｖＮＰＶ）是成都地区首次发现的一种昆虫病毒．关于ＴｖＮＰＶ多角体蛋白及病毒粒子蛋白的一般拉曼散射（ＯＲＳ）谱研究已有报道［１,２］,这里报道它们在银胶溶液中的表面增强拉曼散射（ＳＥＲＳ）谱实验及其对实验结果的分析．１材...     

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~~