半空间地表反射式弹性波多参数反演

在半空间中及Ｂｒｏｎ近似下，探讨了采用地表发射和地表接收配置下的弹性波方程，得到散射波总场并从中 分离出散射波的四类波型转换。     

一种单面评估表面细小凹坑的波型转换新方法

提出了一种根据波型转换原理单面评估表面半球形细小凹坑（０．９５～２．５ｍｍ）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．     

电子激发氪原子广义振子强度的理论研究

在研究带电粒子与原子的非弹性散射中,原子的广义振子强度（ＧＯＳ）是一个重要的角色．最近,Ｔａｋａｙａｎａｇｉ等人通过非弹性散射中电子能损谱的测量得到了氪（Ｋｒ）原子在４ｐ６→４ｐ５（２Ｐ１／２）５ｓ和４ｐ６→４ｐ５（２Ｐ３／２）５ｓ转换过程中的ＧＯＳ．我们用相对论Ｓｌａｔｅｒ定域密度方程得到的波函数计算了该过程在动量平方转移从０．０１到１０（原子单位）范围内的ＧＯＳ．所得结果对Ｔａｋａｙａｎａｇｉ等人的实验给出了较圆满的理论解释．     

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。     

不同月龄Beagle犬的心电图研究

对不同月龄的６６只健康Ｂｅａｇｌｅ犬采用３％戊巴比妥钠麻醉，进行了９个导联的心电图描记和分析。结果表明：健康Ｂｅａｇｌｅ犬为窦性心律：３０月龄以下育成犬心律平均为１７３．８次／分，种用犬（５０月龄以上）心率平均为１３１．７次／分；二者经统计学处理，有极显著差异。Ｐ波间期平均为０．０５１±０．０１３Ｓｅｃ。Ｐ波振幅平均０．０６１ｍｖ，Ｐ波直立在导联中占９２．６％，在ａＶＲ导联中Ｐ波倒置率９８．７５％；ＱＲＳ波间期均值为：０．０２７±０．００５Ｓｅｃ。在Ⅱ导联中范围为０．０２－０．０４Ｓ－ｅｃ。在各导联中，Ⅰ导联以ｒ波为主（５１．８５％），Ⅱ导联以Ｒｓ波多见（５０％），Ｑｒ波和ｑｒ波在ａＶＲ导联中出现较多（３８．８９％，３１．４８％）。Ｔ波在Ⅰ、Ⅱ、Ⅲ、ａｖＦ、Ⅴ１、Ⅴ２、Ⅴ３导联中直立为主，在ａｖＬ导联中倒置多见（８９．２％，７３．１％）。Ｔ波方向与ＱＲＳ波一致。Ｔ波振幅平沟０．１３７ｍｖ。Ｐ－Ｒ间期范围在此０。０７５－０．１４０Ｓｅｃ。在９个导联中，无明显Ｓ－Ｐ段偏移。Ｐ－Ｐ间隔＜０．０１Ｓｅｃ。     

高氯酸铽、六氟磷酸铽与二苯基亚砜、苯丁基亚砜配合物的发光

合成了Ｔｂ（ＤＰＳＯ）６·（ＣｌＯ４）３、Ｔｂ（ＤＰＳＯ）７·（ＰＦ６）３及Ｔｂ（ＰＢＳＯ）６·（ＣｌＯ４）３配合物（ＤＰＳＯ为二苯基亚砜ＰＢＳＯ为苯丁基亚砜）．在室温下测定了它们的固体粉末荧光激发和发射光谱，结果表明Ｔｂ（ＤＰＳＯ）６·（ＣｌＯ４）３配合物中Ｔｂ３＋的发光强度最高，其中５Ｄ４→７Ｆ５跃迁谱带强度高达８０６．２ｃｄ，Ｔｂ（ＤＰＳＯ）７（ＰＦ６）３配合物中Ｔｂ３＋发光强度次之，Ｔｂ（ＰＢＳＯ）６（ＣｌＯ４）３配合物中Ｔｂ３＋的发光强度最弱．这说明二苯亚砜做为配体受激后向Ｔｂ３＋离子传递能量的效率高于苯丁基亚砜，另外ＣｌＯ４－做为阴离子也可增加Ｔｂ３＋的发光强度，原因是部分外界ＣｌＯ４－离子可进入内界参予配位，降低了配合物的对称性，部分解除了跃迁禁律，提高了Ｔｂ３＋的发光强度．     

F＋H2（0）→H＋HF（v）一维共线反应几率的LCAC—SW法数值计算

用排列通道线性组合散射方法（ＬＣＡＣ－ＳＷ方法）计算了一维共线反应Ｆ＋Ｈ２（０）→Ｈ＋ＨＦ（ｖ）的反应几率，在采用一较小基组（振动能级数目ｎｖｉｂ（Ｈ２）＝８，ｎｖｉｂ（ＨＦ）＝１２，分布高斯函数项目ｇａｓ＝１０）的情况下，得到了与Ｋｕｐｐｅｒｍａｎｎ的精确量子计算数值比较一致的结果，算得Ｆ＋Ｈ２（０）→Ｈ＋ＨＦ（ｖ）＝２）变换反应几率Ｐ＾Ｒ０２在Ｅ≈０．０１４ｅＶ附近有一尖峰出现。     

F H_2(0)→H HF(υ)一维共线反应几率的LCAC-SW法数值计算

用排列通道线性组合散射波方法（ＬＣＡＣ－ＳＷ方法）计算了一维共线反应Ｆ＋Ｈ２（０）→Ｈ＋ＨＦ（υ）的反应几率。在采用一较小基组（振动能级数目ｎｖｉｂ（Ｈ２）＝８，ｎｖｉｂ（ＨＦ）＝１２，分布高斯基函数数目ｎｇａｓ＝１０）的情况下，得到了与Ｋｕｐｐｅｒｍａｎｎ的精确量子计算数值比较一致的结果。算得Ｆ＋Ｈ２（０）→Ｈ＋ＨＦ（υ＝２）交换反应几率ＰＲ０２在Ｅ≈０．０１４ｅＶ附近有一尖峰出现     

高氯酸钐、六氟磷酸钐在二苯亚砜及苯丁基亚砜配合物中的发光

合成了高氯酸钐二苯亚砜Ｓｍ（ＤＰＳＯ）７·（ＣｌＯ４）３、六氟磷酸钐二苯亚砜Ｓｍ（ＤＰＳＯ）７（ＰＦ６）３、高氯酸钐苯丁基亚砜Ｓｍ（ＰＢＳＯ）７·（ＣｌＯ４）３三个配合物．测定了配合物的组成、摩尔电导及粉晶荧光激发和发射光谱．荧光光谱测定结果表明：Ｓｍ（ＤＰＳＯ）７（ＣｌＯ４）３的发光强度最高，其中４Ｇ５／２→６Ｈ７／２谱带强度高达１１９．３ｃｄ．这说明ＤＰＳＯ二苯亚砜作为配体受激发后将能量传递给Ｓｍ３＋使其敏化发光的能力高于苯了基亚砜．另外在一定的条件下阴离子ＣｌＯ可以增强Ｓｍ３＋的发光性能．     

HTI介质横波正常时差速度反演

具有水平对称轴的横向各向同性（HTI）介质模型是用来描述含有平行垂裂缝油气藏最简单方位各是性介质的模型，针对任意各向异性程度的HTI介质水平反射界面，提出了D－剖面的概念，并由此得到任意方位角（测线方向与主轴方向的夹角）的转换波正常时差（NMO）速度公式，在多波多分量勘探中，利用P－P，P－S1，P－S2方位变化的动校正速度，可以建立S1波，S2波的速度和各向异性参数，其中包括与裂缝密度关系最为密切的Thomsen参数γ，数值实例计算表明，对于中等各向异性程度的HTI介质，可以利用P－P波和转换波动校正速度公式较精确地计算出S波正常时差速度，这为使用多波多分量资料进一步反演Thomsen参数γ提供了可靠的依据。     

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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