激光扫描淀积原位生长高TC超导薄膜

用激光束扫描淀积的方法，成功地在ＺｒＯ２（Ｙ），ＬａＡｌＯ３基片原位生长高质量的ＹＢａ２Ｃｕ３Ｏ７－ｘ高温超导薄膜，其临界温度达到９０Ｋ以上，ＳＥＭ及ＸＲＤ分析表明，薄膜沿Ｃ轴择优外延生长，其结晶性很好，表现光滑均匀。     

La0.8Sr0.2MnO3＋λ负载于α,γ—Al2O3上作为燃烧催化剂的研究

Ｌａ０．８Ｓｒ０．２ＭｎＯ３＋λ负载于α,γ－Ａｌ２Ｏ３上作为燃烧催化剂的研究高丽蓉,孙燕华,沈岳年（内蒙古大学化学系,０１００２１,呼和浩特）ＳｔｕｄｉｅｓｏｎＬａ０．８Ｓｒ０．２ＭｎＯ３＋λＬｏａｄｉｎｇｏｎα,γ－Ａｌ２Ｏ３ａｓａＣｏｍｂｕｓｔ...     

掺杂金属离子对α－FeOOH的形态调节作用

采用ＴＥＭ、ＨＲＥＭ、ＤＴＡ和ＸＲＤ等表征方法，研究了掺杂Ｎｉ￣（２＋）、Ｃｒ￣（３＋）、Ｌａ￣（３＋）和Ｃｅ￣（３＋）四种金属阳离子对α－ＦｅＯＯＨ粒子形态的影响及其作用机制。结果表明，掺杂Ｎｉ￣（２＋）和Ｃｒ￣（３＋）可明显提高α－ＦｅＯＯＨ粒子的轴比，而掺杂Ｌａ￣（３＋）和Ｃｅ￣（３＋）则不能；Ｎｉ￣（２＋）、Ｌａ￣（３＋）和Ｃｅ￣（３＋）亦可抑制ａ－ＦｅＯＯＨ枝叉的形成。研究发现，杂质离子改变了铁黄表面和本体结构，且提高铁黄粒子轴比的作用源于其抑制α－ＦｅＯＯＨ短轴方向（１２０）晶面的生长速率。     

杂多阴离子柱撑水滑石类层柱状化合物的合成与表征

以硝酸根型水滑石做交换前驱体，采用离子交换法合成了过渡金属离子三元取代硅钨杂多阴离子柱撑水滑石Ｍ＿２Ａｌ（ＯＨ）＿６－ＳｉＷ＿９Ｚ＿３（Ｈ＿２Ｏ）＿３Ｏ＿（３７）（Ｍ＝Ｍｇ￣（２＋），Ｚｎ￣（２＋），Ｎｉ￣（２＋），Ｚ＝Ｃｕ￣（２＋），Ｃｏ￣（２＋））．用元素分析、ＸＲＤ、ＩＲ、ＵＶ－ＤＲＳ和ＤＴＡ等手段对产物的组成和结构进行了表征。结果表明，杂多阴离子引入水滑石层间后，水滑石的层间距从０．９２ｎｍ增大到１．４７ｎｍ；提高了柱撑材料的热稳定性，随层的组成不同热稳定性顺序为：Ｍｇ＿２Ａｌ≥Ｎｉ＿２Ａ１＞Ｚｎ＿２Ａｌ；随柱的组成不同热稳定性顺序为：ＳｉＷ＿９Ｃｏ＿３＞ＳｉＷ＿９Ｃｕ＿３．处于层中的杂多阴离子在层的脱羟基温度以下均能保持良好的Ｋｅｇｇｉｎ结构。     

Nd_(0.9)Ca_(0.1)Ba_2Cu_3O_(7-δ) 超导体的结构

用固相反应法制备，并通过不同条件的热处理得到了一组不同氧含量的Ｎｄ０．９Ｃａ０．１Ｂａ２Ｃｕ３Ｏ７－δ样品。用ＸＲＤ确定了预烧粉末的结构特征，发现其为（Ｎｄ，Ｃａ，Ｂａ）ＣｕＯ３钙钛矿结构，较之典型立方钙钛矿（ＳｒＴｉＯ３）出现新的１１３峰，且晶胞参数相应增大了一倍。随着氧含量的增大，Ｎｄ０．９Ｃａ０．１Ｂａ２Ｃｕ３Ｏ７－δ的结构发生从四方到正交相变，并讨论了其结构与超导电性的关系。     

缺位K10H5[Ln（VW10O37）2]配合物的合成和性质研究

本文首次报道了缺位Ｋ１０Ｈ５「Ｌｎ（ＶＷ１０Ｏ３７）２」ＸＨ２Ｏ（Ｌｎ＝Ｌａ＾２＋、Ｃｅ＾３＋、Ｄｒ＾３＋、Ｎｄ＾３＋、Ｓｍ＾３＋、Ｅｕ＾３＋、Ｇｄ＾３＋、Ｔｂ＾３＋、Ｄｙ＾３＋、Ｙｂ＾３＋）１０余种配合物的合成方法，元素分析与理论值相符，利用ＩＲ、ＵＶ、ＸＲＤ和ＴＧ－ＤＴＡ对配合物进行了表征，配合物的热解性质研究表明，其分解温度为４００－４５０℃，还研究了配合物在水溶液中的稳定性。     

掺Eu^2＋的卤磷酸盐的发光特性和内部能量传递

探讨Ｂａ＾２＋离子搀杂对（Ｃａ０．５Ｓｒ０．５）５（ＰＯ４）３Ｃｌ：Ｅｕ＾２＋和（Ｃａ０．４Ｓｒ０．６）５（ＰＯ４）３Ｃｌ：Ｅｕ＾２＋量子发光效率的影响，当用Ｂａ＾２＋离子代替Ｃａ＾２＋或Ｓｒ＾２＋离子进入晶体时，Ｅｕ＾２＋离子的发光特性发生改变；发射峰的峰值降低；热猝灭的温度升高，并采用位型坐村理论给予解释。根据晶体的结构特征，对占据两个不等当晶体学位置的Ｅｕ＾２＋离子发光中心之间的能量传递进行     

￣（45）Ca跨膜流动测定技术用于中药钙拮抗作用的研究

应用￣（４５）Ｃａ跨膜流动测定技术研究钙拮抗剂ｖｅｒａｐａｍｉｌ、中药西红花（ＣｒｏｃｕｓＳａｔｉｖｕｓＬ．）、“地奥心血康”（ＤＡＸＸＫ）、川红花（ＣａｒｔｈａｍｕｓｔｉｎｃｔｏｒｉｕｓＬ．）及银杏叶（ＧｉｎｋｇｏｂｉｌｏｂａＬ．）等对大鼠主动脉￣（４５）Ｃａ跨膜内流的作用，以确定其对细胞膜Ｃａ￣（２＋）通道影响。实验结果表明：西红花、川红花、ＤＡＸＸＫ对平滑肌细胞膜上电压依赖Ｃａ￣（２＋）通道（ＰＤＣ）和受体操纵Ｃａ￣（２＋）通道（ＲＯＣ）都有阻滞作用，并以西红花的阻滞作用最强；而银杏叶对细胞膜Ｃａ￣（２＋）通道无阻滞作用。     

铜基甲醇合成催化剂的EPR表征

用ＥＰＲ谱法对铜基甲醇合成催化剂作表征。结果表明：在少量Ａｌ￣（３＋）掺杂的ＺｎＯ－Ａｌ＿２Ｏ＿３体系可检测到ｇ＝１．９６０６±０．０００２，△Ｈｐｐ＝２．８Ｇ的顺磁信号，其强度随Ａｌ＿２Ｏ＿３掺杂量增加而增强，当Ａｌ／Ｚｎ～２／１００（原子比）时趋于峰值；而在三组份Ｃｕ－ＺｎＯ－Ａｌ＿２Ｏ＿３和四组份Ｃｕ－ＺｎＯ－Ａｌ＿２Ｏ＿３－Ｓｃ＿２Ｏ＿３催化剂体系中，此顺磁信号基本消失。以上结果为三价金属离子（Ａｌ￣（３＋）、Ｓｃ￣（３＋））在ＺｎＯ晶格掺杂诱生正一价缺位从而有利于Ｃｕ以＋１价态存在的观点，提供了新证据。     

铒浓度对ZnS薄膜DCEL的影响

用直接掺杂法和ＸＰＳ谱法研究ＺｎＳ：Ｃｕ，Ｃｌ，Ｅｒ中铒离子的体浓度及纵向分布对器件发光的影响，测量了Ｅｒ￣３＋的￣２Ｈ＿ｌｌ／ｌ２，跃迁与温度的关系，对硫化锌薄膜器件中Ｅｒ￣３＋发光的电激发过程提出新见解．     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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