Gd—Ni二元系富Ni合金相图

本文用X射线衍射及差热分析方法测定了Gd—Ni二元系富Ni合金相图,Ni含量为50—100at％。在这个成分范围内,观察到如下七个金属间化合物:GdNi(1280℃同成分熔化),GdNi_2(1010℃包晶分解),GdNi_3(1110℃包晶分解),Gd_2Ni_7(1200℃包晶分解),GdNi_4(1270℃包晶分解),GdNi_5(1470℃同成分熔化)和Gd_2Ni_(17)(1285℃包晶分解)。存在二个共晶反应:GdNi—GdNi_2(880℃,～56at％Ni)和Gd_2Ni_(17)—Ni(1275℃,～95at％Ni):Gd在Ni中无明显的固熔度。     

Fe-Ni合金中相能量的修正嵌入原子法计算

运用修正岩入原子法（MEAM）系统地研究了Fe-Ni合金中，面心立方和体心立方两种结构的有序和无序相能量，在用MEAM计算无序的相能量时，引入原子占据某一阵点的几率与成分的等同关系，计算结果表明，α（bcc)和γ（fcc)两种无序相在347℃时平衡原子分数分别为8．6％Ni和31．5％Ni，与相图基本符合，基于3种有序相的能量计算，可预期FeNi3最稳定，FeNi次之，而Fe3Ni最不稳定，这与文献报道的实验结果相符。     

Ti─Al二元系α／γ相平衡

利用合金平衡处理与电子探针微区成分分析及定量金相分析技术测定了Ｔｉ－Ａｌ二元系α／γ相平衡成分，明确了（α＋γ）相区结构．结果表明，在１３００℃下不存在β与γ相的相平衡关系．该结论与ＭｃＣｕｌｏｕｇｈ等人利用高温Ｘ射线衍射的测定结果一致，而不支持Ｍｕｒｒａｙ的计算相图结果     

Ti－Ni－Nb三元系部分相图的研究

应用多元扩散偶－电子探针微区成分分析技术，测定了Ｔｉ－Ｎｉ－Ｎｂ三元系相图的７００，８００，９００℃等温截面含镍量（原子分数）为０～５０％的大部分区域．完整地测定了α－Ｔｉ，β（Ｔｉ，Ｎｂ）及Ｔｉ２Ｎｉ的相区范围及相平衡关系，首次发现了一个可能的化学计量式为Ｔｉ３Ｎｉ９Ｎｂ８的三元化合物相ＸＢ     

Ti—Al—Y三元系相图1000℃部分等温截面重新确定

利用扩散偶局部平衡原理，通过金相观察和电子探针微区成分分析，重新测定了１０００℃下Ｔｉ－Ａｌ－Ｙ三元部分等温截面相图。首次发现该系在１０００℃存在两个三元化合物均相区Ｙ（ＡｌｘＴｉ１－ｘ）２（ｘ＝８０％￣１００％）和Ｙ３（ＡｌｘＴｉ１－ｘ）２（ｘ＝８０％￣１００％）改变了以前发表的关于Ｔｉ－Ａｌ－Ｙ三元相图１０００℃等温截面的研究结果。此外在所测部分等温截面相图中存在６个单相区，９个两相平衡区，４     

广东长坑-富湾金、银矿床流体地球化学特征及其意义

在广东长坑－富湾金、银矿床的金矿石矿物中观察到单相盐水溶液包裹体和两相盐水溶液包裹体，银矿石矿物中除此还有单相气体包裹体和两相气液包裹体。测得包裹体均一温度：金矿128－200℃，银矿在185－280℃之间，均为中一低温；包裹体盐度：金矿6．0％－9．5％（NaCl，个别高于10％），银矿6．0％－8．2％（NaCl）和9．7％－15．9％（NaCl,个别低于6％）；包裹体密度：金矿0．878－0．991g/cm^3，银矿0．833－1．018g/cm^3；成矿压力在27．0－31．0MPa左右，银矿化较金矿化高；金矿成矿流体属K－Na-Cl型，银矿是Na-Ca-Cl型，它们的流体成分不同于现代海底喷流和海水环境中的成矿流体；NaCl-H2O体系的T－S－D相图反映金、银矿床的成矿流体介于临界和饱和曲线之间；金矿成矿流体介质水为大气降水或建造水，银矿的成矿流体水是大气降水与火山－岩浆水的混合水。说明长坑－富湾金、银矿成矿不是在海盆中由热水沉积作用形成的，而是热液交代作用的产物；成矿流体属亚临界、中－低温、中－低盐度的高密度流体，要形成如此大规模金、银矿床，成矿系统必须是开放的热液环流机制。     

IL－10与放线菌酮诱导K562细胞凋亡

目的：研究IL－10对放线菌酮（CHX）诱导K562细菌凋亡所产生的调节作用。方法：采用碘化丙啶（PI）染色流式细胞仪分析，形态学观察及DNA凝胶电泳检测K562细胞。结果：CHX组K562凋亡细胞达58．3％，CHX加IL－10组达75．8％。结论：（1）CHX能诱导K562细胞凋亡。（2）IL－10和CHX联合作用诱导K562细胞凋亡的作用增强。     

1—（ω—烷氧基烷基）己内酰胺的相转移合成法

已内酰与α，ω－二卤代烷在固－液相转移条件下（KOH）／K2CO3混合碱，TBAB为PTC）反应是1－（ω－卤代烷基）己内酰胺1，研究了反应温度、时间、碱及催化剂用量对1，4－二溴丁烷与已内酰胺进行单取代反应产率的影响。结果表明：当己内酰胺：1，4－二溴丁烷：氢氧化钾；碳酸钾：TBAB为1：3：1．5：3：0．05（摩尔比）时，90℃下反应，13h，产率可达75．4％，并合成了其它3个1－（ω－卤代烷基）己内酰胺，在类似的固－液相转移条件下，1与醇反应得标题化合物。     

矮杨梅叶精油化学成分分析

本文应用气相色谱──质谱联用仪（ＧＣ／ＭＳ），测定分析了矮杨梅（ＭｙｒｉｃａｎａｎａＣｈｅｖａｌ．）叶精油化学成分。从分离的５４个峰中鉴定出４０种成分，其中主要成分是β－石竹烯（１４．５８％）、大根香叶酮（１２．５５％）、α－蒎烯（８．３６％）、烷（７．３６％）、甲酸异丙酯（６．７４％）、α－姜黄烯（５．６５％）、２－丁酸香叶酯（４．５５％）、α－古芸烯（３．７８％）等。并与同属植物杨梅（Ｍ，ｒｕｂｒａＳｉｅｄ．ｅｌＺｕｃｃ．）叶精油成分、含量进行了比较分析。     

涟钢CSP线LF终渣成分模型的计算及后台试运行

采用物料平衡原理对涟钢CSP工艺中LF终渣成分作了理论计算，其计算成分范围w（CaO）为52％～62％，w（SiO2）为5．5％～6．5％，w（Al2O3）为17％～28％，w（MgO）为5．5％～6．5％，同时还计算了该终渣系的四元碱度和光学碱度范围，即分别为R4=1．70～2．90，Λ=0．78～0．84。计算结果表明，理论计算与实际检测结果基本一致，与目标控制值相差不大，从理论上建立精炼渣加料模型实现计算机程序界面化操作是可行的。在后台试运行中，模型的初期命中率为70％，修正后预期效果可达到90％以上。     

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