直流反应溅射α-C:H薄膜

用直流平面磁控反应溅射制备了含氢非晶态碳膜（α－Ｃ：Ｈ），在０．３５－２．５μｍ波长范围内确定了它的光学常数ｎ，ｋ与禁带宽度，包括刚沉积（ＡＤ）与经真空烘烤４５０℃４０ｍｉｎ（ＨＴ）的α－Ｃ：Ｈ膜。红外透射谱、拉曼光谱与电子衍射等分析表明：α－Ｃ：Ｈ为无定形碳与金刚石共存物。热处理后，Ｃ－Ｈ与Ｃ＝Ｏ键减少，而Ｃ＝Ｃ键增加。α－Ｃ：Ｈ作为减反射膜的α－Ｃ：Ｈ／渐变ＳＳ－Ｃ／Ａｌ选择性吸收表面，具有太阳吸收率α≈０．９３（ＨＴ）．发射率ε≈０．０６（８０℃）。     

铅（II）－1－［（5－溴－2－吡啶）偶氮］－2，7－萘二酚－吐温－80体系光度法测定铅的研究

研究了在吐温－８０存在下，铅（ＩＩ）与合成的１－［（５－溴－２－吡啶）偶氮］－２，７－萘二酚（简称５－Ｂｒ－ＰＡＤＮ）的显色条件和光度特性。非离子表面活性剂吐温－８０主要起增溶作用。显色反应在５０℃时１０ｍｉｎ内即可完成，配合物在ｐＨ３．０～６．０之间的吸光度大而稳定，最大吸收波长λｍａｘ＝５９０ｎｍ，摩尔吸光系数ε＿（５９０）＝８．３１×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１）．Ｐｂ￣（２＋）含量在０～２０μｇ·（２５×１０￣（－３）Ｌ）￣（－１）范围内遵守比尔定律。拟定方法的选择性较好，已用于树叶表面上和人发中铅的测定，获满意结果。     

5－Br－PADN双峰双波长法测定铁（Ⅲ）

研究５－Ｂｒ－ＰＡＤＮ与铁（Ⅲ）的显色反应，在ｐＨ９．０～９．４范围内，当有１０％ＳＤＳ存在时，铁（Ⅲ）与５－Ｂｒ－ＰＡＤＮ形成１：４的稳定配合物。λ＿（ｍａｘ）为５３４ｎｍ，ε为５．１３×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），铁（Ⅲ）浓度在０～１２．５×１０￣（－４）ｇ／Ｌ范围内符合Ｂｅｅｒ定律，用双峰双波长法测定茶叶中痕量铁（Ⅲ），结果满意。     

铁（Ⅲ）－邻硝基苯基荧光酮－CEHEAELA－Brij－35显色反应的研究与应用

本文研究了在新两性表面活性剂Ｎ－［Ｎ＇－（羧乙基）－Ｎ＇－（２－羟乙基）氨乙基］月桂酰胺钠盐（ＣＥＨＥＡＥＬＡ）和十二醇聚氧乙烯２３醚（Ｂｒｉｊ－３５）存在下，铁（Ⅲ）与邻硝基苯基荧光酮（Ｏ－ＮＰＦ）的显色反应．在ｐＨ６．０～９．０的ＨＡｃ－ＮａＡｃ缓冲介质中，Ｆｅ（Ⅲ）与Ｏ－ＮＰＦ形成１：３的桔红色配合物，最大吸收波长在５８０ｎｍ处，表观摩尔吸光系数ε＿（５８０）达１．４０×１０￣５Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），铁（Ⅲ）浓度在０～０．４８ｕｇ／ｍＬ范围内符合比尔定律．方法用于水样、人发及铝合金中痕量铁的测定，结果满意．     

应用V－H_2O_2－PAR三元配合物光度法测定煤中钒含量的研究

在ｐＨ０．１５～４，钒（Ⅴ）与４－（２－吡啶偶氮）－间苯二酚（ＰＡＲ）及有过氧化氢存在时，形成组成为１∶１∶１的三元红色配合物，其最大吸收波长在５４０ｎｍ处，ε值约为１．４×１０￣４。本文在此基础上，研究了通过控制适宜酸度，使用适宜掩蔽剂，不经过分离而直接测定煤样中钒的含量的方法。     

新显色剂5－（4＇－氯－2＇羧基苯偶氮）绕丹宁与银的显色反应及其应用研究

在ＴｒｉｔｏｎＸ－１００存在下，ｐＨ＝５．０～５．５时，新试剂Ｃｌ－ＲＡＣＰ与银生成配合物，其最大吸收波长为５００ｎｍ，配合物的配位比为１：２，表观摩尔吸光系数为１．１×１０￣５·Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１）。Ａｇ（Ⅰ）的浓度在０～２．０μｇ·ｍｌ￣（－１）范围内符合比尔定律。该法用于阳极泥和废定影中银的测定，结果较满意，相对标准偏差为１％。     

4－羟基－3，5－二溴苄叉绕丹宁分光光度法测定银（Ⅰ）

本文提出了新显色剂４－羟基－３，５－二溴苄叉绕丹宁测定银（Ｉ）的分光光度方法．在ｐＨ１２，聚乙二醇－４００存在下，银（Ｉ）与４－羟基－３，５－二溴苄叉绕丹宁形成１：２深红色络合物，其最大吸收波长在５１０ｎｍ，并且在室温下可稳定存在２４小时以上．在２５ｍＬ容积中，Ａｇ￣＋在０～１００μｇ范围符合比尔定律，摩尔吸光系数为１．１５×１０￣４Ｌ·ｍｏＬ￣（－ｌ）·ｃｍ￣（－１），标准偏差为０．００３（ｎ＝１０）．     

二元Szasz－Mirakjan算子的导数与函数的光滑性

讨论二元Ｓｚａｓｚ－Ｍｉｒａｋｊａｎ算子的导数与函数的光滑性之间的关系．得到下列结果：设ｆ（ｘ，ｙ）∈Ｃ（Ｓ），则有（１）０＜α≤１时，的充分必要性条件是ω￣（１）（ｆ；ｈ）≤Ｍｈ￣α．（２）０＜α≤时，的充分必要条件是ω￣（２）（ｆ；ｈ）≤Ｍｈα．（３）０＜β≤２时，的充分必要条件是．（４）０＜β≤２时，的充分必要条件是．这里Ｌ＿ｎ（ｆ；ｘ，ｙ）是二元Ｓｚａｓｚ－Ｍｉｒａｋｊａｎ算子。     

乙二醛双缩－4－烯丙基－3－硫代氨基脲分光光度法测定痕量铜的研究

研究了Ｃｕ（Ⅱ）与新试剂乙二醛双缩－４－烯丙基－３－硫代氨基脲的显色反应，该反应生成１：２的红色配合物。Ｃｕ（Ⅱ）在０－４０μｇ／２５ｍｌ范围内服从比耳定律，其表现摩尔吸光系数为２．４×１０￣４Ｌ．ｍｏｌ￣（－１）．ｃｍ￣（－１）。该法用于测定水中微量铜，结果满意。     

非对称水溶性卟啉与钯（II）显色反应的光度法研究

研究了非对称性５，１０，１５－三（４－甲基－３－磺基苯）－２０－［４－（５－氟尿嘧啶）－３－磺基苯］卟啉（ＭＦｕＳＰＰ）测钯的显色条件，在表面活性剂十二烷基磺酸钠存在下，ｐＨ４．５￣６．０的弱酸性ＨＡｃ￣ＮａＡｃ缓冲介质中，用抗坏血酸催化，Ｐｄ（Ⅱ）与ＭＦｕＳＰＰ形成１：１配合物，最大吸收波长４１５ｎｍ，摩尔吸光系数ε＝１．８×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，线性范围０￣２．０μｇ／１０ｍｌ     

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