几种金属薄膜密度的测量

用两种方法测量了几种金属薄膜的密度。介绍了应用卢瑟福背散射（ＲＢＳ）技术结合阶仪测厚来测量薄膜密度的测量方法，并将所得结果进行了讨论，分析了两种测量方法的优缺点。     

0.15～2.00MeV质子在硼上的160°散射截面测量

采用相对测量法对能量０．１５～２．００ＭｅＶ质子在天然硼上的非卢瑟福弹性背散射截面（１６０°背散射角）进行了测量．质子束由本单位引进的２×１．７ＭＶ串列加速器提供；测量仪器采用ＯＲＴＥＣ公司金硅面垒探测能谱仪．实验中最低能区进入卢瑟福弹性散射能区，测量结果用图表形式给出，并与以前发表的结果进行了比较．所测数据可供从事背散射分析技术的有关人员参考．     

几种金属薄膜密度的测量

用两种方法测量了几种金属薄膜的密度．介绍了应用卢瑟福背散射（ＲＢＳ）技术结合台阶仪测厚来测量薄膜密度的测量方法,并将所得结果进行了讨论,分析了两种测量方法的优缺点     

固体乏燃料表面的卢瑟福背散射模拟研究

为了研究固体乏燃料表面核素的种类、含量以及厚度对卢瑟福背散射能谱的影响,通过SIMNRA软件模拟背散射能谱,研究了I、Pm、U等典型核素及核素含量、靶材厚度对背散射能谱的影响.结果表明,不同核素对应不同的能量峰,核素的元素质量数越大,背散射能量越大;核素含量越高,相应的能谱高度(峰面积)越大.此外,能谱的半高宽度与靶材的厚度存在线性关系,能谱的半高宽度正比于靶材的厚度越厚.     

无限厚靶向理想薄靶的转换

提出了一种简单的背散射自理方法，将无限厚靶转换成理想薄膜，该方法无需模拟背散射谱的形状，即可求出未知样品中各万分的相对含量，对于卢瑟福散射和弹性共振散射同样有效。并用氧化铜和氧化钛混合配制了系列标样予以检验，结果与参考值很好地符合。     

阳极氧化制备铝磁性膜的研究

对用阳极氧化技术制备铝磁性膜进行了实验研究；用扫描电子显微镜、Ｘ射线光电子谱法、卢瑟福背散射谱法等表面分析手段对Ａｌ磁性膜的形貌、大小、厚度以及磁性膜中的元素分布作了分析。实验表明，Ａｌ以Ａｌ２Ｏ３形态存在，Ｃｏ离子主要沉积于铝膜微孔底部。并测量了不同工艺条件下磁性膜的矩形比     

SiGe合金氧化层中的纳米结构

我们在硅锗合金衬底上采用氧化等制膜方式生成零维和三维的纳米结构样品，用高精度椭偏仪(HPE)、卢瑟福背散射谱仪(RBS)和高分辨率扫描透射电子显微镜(HR-STEM)测量样品的纳米结构。并采用美国威思康新州立大学开发的Rump模拟软件对卢瑟福背散射谱(RBS)中的CHANNEL谱和RANDOM谱分别进行精细结构模拟。计算且测量出纳米氧化层与锗的纳米薄膜结构分布，并且反馈控制加工过程。优化硅锗半导体材料纳米结构样品的加工条件。我们在硅锗合金的氧化层表面中首次发现纳米锗量子点和量子层结构，我们首次提出的生成硅锗纳米结构的优化加工条件的氧化时间和氧化温度的匹配公式和理论模型与实验结果拟合得很好。     

SiGe合金氧化层中的纳米结构

在硅锗合金衬底上采用氧化等制膜方式生成零维和二维的纳米结构样品，用高精度椭偏仪（HPE）、卢瑟福背散射谱仪（RBS）和高分辩率扫描透射电子显微镜（HR-STEM）测量样品的纳米结构，并采用美国威思康新州立大学开发的Rump模拟软件对卢瑟福背散射谱（RBS）中的CHANNEL谱和RANDOM谱分别进行精细结构模拟，测量并计算出纳米氧化层与锗的纳米薄膜结构分布，并且反馈控制加工过程，优化硅锗半导体材料纳米结构样品的加工条件。在硅锗合金的氧化层表面中着次发现纳米锗量子点组成的纳米盖帽薄膜（2nm)，提出的生成硅锗纳米结构的优化加工条件的氧化时间和氧倾泄蝶恋花匹配公式的理论模式模型与实验结果拟合得很好。     

环氧树脂上激光诱导局部化学沉铜

用激光诱导化学沉积方法在非导体环氧树脂基体上实现微区局部、快速化学沉铜，并用卢瑟福背散射和扫描电镜方法对镀层的形貌、性质进行了观测和分析。激光的输出功率密度及照射时间决定了镀斑的面积和厚度。所得镀层比传统方法所得的化学镀层更致密。同时，由于激光照射引起的短时局部高温，使界面的金属原子向光照区基体内部扩散，得到的铜镀层与基体有较好的结合力。     

MECHANISM OF NANOSTRUCTURE IN OXIDATION OF Si1-xGex AL-LOYS

我们在硅锗合金衬底上采用氧化等制膜方式生成零维和三维的纳米结构样品,用高精度椭偏仪(HPE)、卢瑟福背散射谱仪(RBS)和高分辨率扫描透射电子显微镜(HR-STEM)测量样品的纳米结构,并采用美国威思康新州立大学开发的Rump模拟软件对卢瑟福背散射谱(RBS)中的CHANNEL谱和RANDOM谱分别进行精细结构模拟,计算且测量出纳米氧化层与锗的纳米薄膜结构分布,并且反馈控制加工过程,优化硅锗半导体材料纳米结构样品的加工条件.我们在硅锗合金的氧化层表面中首次发现纳米锗量子点和量子层结构,我们首次提出的生成硅锗纳米结构的优化加工条件的氧化时间和氧化温度的匹配公式和理论模型与实验结果拟合得很好.     

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