含钡低钛高炉渣硫分配系数的研究

就ＢａＯ质量含量１．０％－３．７％，ＴｉＯ２质量含量１．５％－４．０％，炉渣二元碱度（ＣａＯ／ＳｉＯ２）０．９５－１．１５的高炉渣脱硫能力进行了研究。结果表明：在实验条件下，炉渣脱硫反应是二级反应；炉渣硫分配系数Ｌｓ随二元碱度提高而提高；渣中ＴｉＯ２为３％时，Ｌｓ有一峰值。     

石墨还原CaO－SiO_2－Al_2O_3－FeO熔渣过程中泡沫化行为

石墨还原ＣａＯ－ＳｉＯ_２－Ａｌ_２Ｏ_３－ＦｅＯ熔渣过程中泡沫化行为黄宗泽，肖兴国，肖泽强，ＳＤ辛格在１４４０～１５３０Ｃ，通过Ｘ射线装置观测了石墨活原ＣａＯ－ＳＩＯ；－ＡＩ。Ｏ。－ＦｅＯ＄渣（ＣａＯ）／ＳＩＯ。一０·７５～１·５）中ＦｅＯ反应过程中?..     

磷在CaO-CaF_2渣和Fe-C-P熔体间的平衡分配

对磷在１４５０℃的ＣａＯ－ＣａＦ２熔渣和Ｆｅ－Ｃ饱和－Ｐ铁液间的平衡分配比进行了测定，进而对该渣的磷容量和渣中磷氧化物的活度系数进行了计算     

原位反应生成Al-Fe/Al_2O_3,Al-Cu/Al_2O_3复合材料的过程原理

采用喷射共沉积法制备了Ａｌ－Ｆｅ２Ｏ３及Ａｌ－ＣｕＯ复合体，Ｆｅ和Ｃｕ的质量分数分别为９．６０％和５．５０％．在热处理过程中，随着温度由６００℃升高到８００℃和１０００℃，Ｆｅ３Ｏ４按Ｆｅ３Ｏ４ＦｅＯＦｅ顺序被还原，得到Ａｌ－Ｆｅ／Ａｌ２Ｏ３复合材料，其中Ｆｅ以Ａｌ１３Ｆｅ４相及ＡｌＦｅ相形式存在．Ａｌ２Ｏ３粒度为２～４μｍ均匀分布在基体中．Ａｌ／ＣｕＯ复合体在９００℃处理后，形成Ａｌ－Ｃｕ／Ａｌ２Ｏ３复合材料．文中对显微结构形成、反应进行的过程作了分析．     

含FeO熔渣还原过程起泡行为研究

在１４４０－１５３０ ℃，通过Ｘ射线装置观测了石墨还原ＣａＯ－ＳｉＯ２－Ａｌ２Ｏ３－ＦｅＯ熔渣（ＣａＯ／ＳｉＯ２＝０．７５－１．５）中ＦｅＯ反应过程中渣的起泡行为，测定了熔渣的起泡指数和起泡率等参数。结果表明，熔渣的起泡率随熔渣中ＦｅＯ的初己考叭墼疃鹊纳叨龃蟆?     

氧缺位铁酸锰分解CO_2成C的研究

空气氧化湿法制备的ＭｎＦｅ２Ｏ４在Ｈ２还原下，生成氧缺位铁酸锰ＭｎＦｅ２Ｏ４－δ（０＜δ＜１），利用ＸＲＤ和Ｍｏｓｓｂａｕｅｒ谱等技术，对它的性质（还原性，晶格常数稳定性）进行了详细地研究，考查了在氧缺位铁酸锰（ＭｎＦｅ２Ｏ４－δ，δ＞１）及ＭｎＯ－ＦｅＯ固溶体下ＣＯ２分解成Ｃ的活性，结果表明（ＭｎＦｅ２Ｏ４－δ，δ＞１）能够有效地分解ＣＯ２成Ｃ，并且在反应以后自身转变成了化学计量的ＭｎＦｅ２Ｏ４，ＭｎＯ－ＦｅＯ分解ＣＯ２以后，一部分变为ＭｎＦｅ２Ｏ４，一部分仍然保持ＭｎＯ－ＦｅＯ固溶体结构     

应用LCAO方法计算新型稀土永磁Y2Fe17Cx的居里温度

使用ＬＣＡＯ对永磁系列Ｙ２Ｆｅ１７Ｃｘ（ｘ＝０，１，２，３，）的电子结构计算结果，计算了该系列模型材料的居里温度，并和基底材料Ｙ２Ｆｅ１７作了对比．居里温度的增长系数和实验符合较好．     

掺锑α－Fe_2O_3超微粉材料的晶粒生长、微结构与气敏特性

用化学共沉淀法制得掺有一定量锑离子的α－Ｆｅ２Ｏ３，超微粉料．ＴＧ－ＤＴＡ、ＸＲＤ及ＳＥＭ等分析表明，掺锑量（Ｓｂ／Ｆｅ原子比）小于０．２时，材料仍保持α－Ｆｅ２Ｏ３的晶体结构，但其晶化温度随Ｓｂ含量的增加向高温区移动；在低温段纯α－Ｆｅ２Ｏ３的晶粒生长活化能（Ｑ＝１０．３ｋＪ／ｍｏｌ）远小于Ｓｂ／Ｆｅ＝０．１（Ｑ＝３５．３ｋＪ／ｍｏｌ）粉料的活化能；Ｓｂ５＋取代α－Ｆｅ２Ｏ３晶粒中Ｆｅ３＋格位与在４５０℃下长期工作粉料颗粒不易长大，是造成掺锑α－Ｆｅ２Ｏ３元件电阻降低一个多数量级及气敏性能显著改善的主要原因．     

活性艳红X—3B氧化脱色的研究

采用Ｆｅｎｔｏｎ试剂对高浓度活性艳红Ｘ－３Ｂ废水进行氧化脱色。研究表明,ＦｅＳＯ４．７Ｈ２Ｏ＝０．４ｇ／ｌ,Ｈ２Ｏ２＝３．０ｍｌ,ｐＨ＝３－５时,３０ｍｉｎ内的脱色率达９５％以上,１２０ｍｉｎ时残留ＣＯＤｃｒ为８７．６ｍｇ／ｌ．Ｆｅｎｔｏｎ试剂的脱色作用。     

山东蓝宝石的优化处理研究

报道了山东蓝宝石的部分物理—化学性质和优化处理结果。中子活化分析得出，平均全铁含量约为１％，钛约为０．０４％。穆斯堡尔谱学分析表明，大多数铁处于二价态。高压电子显微镜分析给出四种原生包体：钛铁矿ＦｅＯＴｉＯ２，假板钛矿Ｆｅ２ＴｉＯ５，钙钛矿ＣａＴｉＯ３及非晶态相。优化处理实践证明，经高温氧化处理后，山东蓝宝石的品质能够得到显著改善，表现为透明度提高，颜色变浅。相应的部分内在变化为Ｆｅ２＋／Ｆｅ３＋值降低，非晶态相初晶化，钛铁矿ＦｅＯＴｉＯ２消失，析出钛酸铝Ａｌ２ＴｉＯ５和铁铝氧化物Ａｌ２Ｏ３Ｆｅ２Ｏ３。要获得纯正的蓝色，须严格控制处理温度和相应的氧分压，尽量使Ｆｅ２＋／Ｆｅ３＋值趋近于１。为获得优质蓝宝石，应对黑色本底作深入研究。     

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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