聚乙烯接枝马来酸盐离聚体的红外光谱——制备方法和成膜条？…

通过２种不同的方法制备了聚乙烯接枝马来酸盐离聚体,并比较两者的ＩＲ谱,得：溶液接枝法的羧酸盐的ｖ峰出现在１５８０～１６００ｃｍ＾－１之间,熔融接枝法的Ｖａｓ峰则出现在１５４６ｃｍ＾－１处,对于同一种接枝法制备所得的产物,不同的成膜条件ＩＲ谱不同,溶液铸膜的ＩＲ谱较复杂,以上谱图的差别说明了不同的制备了方法所得产物的离子聚集状态有区别。     

GaAs／AlGaAs多量子阱结构材料的光致发光特性

采用ＭＯＣＶＤ技术制备了ＧａＡｓ／ＡｌＧａＡｓ多量子阱结构材料，对其进行了光致发光特性的测量，结果观察到５个发光峰，其波数分别为ｕ＝９６００ｃｍ＾－１，１２０２０ｃｍ＾－１，１２２４０ｃｍ＾－１１２５５０ｃｍ＾－１和１３０７０ｃｍ＾－１，并对发光峰的位置进行了理论的说明。     

LDPE－g－MALa离聚物的合成及表征

合成了低密度聚乙烯接枝马来酸镧（ＬＤＰＥ－ｇ－ＭＡＬａ）离聚物，并对该离聚物进行了确证．实验结果表明：在ＬＤＰＥ－ｇ－ＭＡＬａ的ＩＲ谱上于１６０５ｃｍ－１处出现了羧酸盐的Ｃ＝Ｏ伸缩振动峰，同时ＷＡＸＤ谱上新出现的２θ＝１６．７０°，１３．８０°两个强衍射峰，也证明确有离子微区的存在．ＤＳＣ研究说明该接技产物结晶度降低，结晶速率加快．ＴＧＡ图则说明离子化可以提高聚合物的稳定性．     

LDPE—g—MALa离聚物的合成及表征

合成了低密度聚乙烯接枝马到镧离聚物，并对该离聚物进行了确证。实验结果表明：在ＬＤＰＥ－ｇ－ＭＡＬａ的ＩＲ谱上于１６０５ｃｍ＾－１处出现了羧酸盐的Ｃ＝０伸缩振动峰，同时ＷＡＢＤ谱上新出现的２θ＝１６．７０°，１３．８０°两个强衍射峰，也证明了有离子微区的存在，ＤＳＣ研究说明了该接枝产物结昌度降低，结晶速度加快，ＴＧＡ图则说明离子化可以提高聚合物的稳定性。     

GaAs/AlGaAs多量子阱结构材料的光致发光特性

采用ＭＯＣＶＤ技术制备了ＧａＡｓ／ＡｌＧａＡｓ多量子阱结构材料,对其进行了光致发光特性的测量,结果观察到５个发光峰,其波数分别为υ＝９６００ｃｍ－１,１２０２０ｃｍ－１,１２２４０ｃｍ－１,１２５５０ｃｍ－１和１３０７０ｃｍ－１,并对发光峰的位置进行了理论的说明     

3－羟基－2－丁酮、二丙酮醇在几种溶剂中的红外光谱研究

本文测定了３－羟基－２．丁酮（ａｃｅｔｏｉｎ）、二丙酮醇（ＤＡ）在四氯化碳、正庚烷、苯和１，２－二氯乙烷等中的红外光谱（３８００—３１００ｃｍ￣（－１））．根据谱峰的强度和峰位的变化，证实了ａｃｅｔｏｉｎ在溶液中能形成较稳定的五元环分子内缔合体，二丙酮醇可形成六元环分子内缔合体．另外，对甲醇、正了醇与ａｃｅｔｏｉｎ在四氯化碳中相互作用的红外光谱也进行了研究，结果表明，ａｃｅｔｏｉｎ分子中羰基和羟基的相互作用，使得自由基的吸收峰移向低频（△γ＝２０ｃｍ￣（－１）），同时羰基醇中羰基接受质子的能力亦被增强．     

10MeV电子辐照GaAs Raman谱的研究

研究了１０ＭｅＶ电子辐照掺ＳｅＧａＡｓ外延层和半绝缘（ＳＩ）ＧａＡｓ的Ｒａｍａｎ测量．观察了几个相关缺陷的特征,认为２２０ｃｍ－１峰与Ａｓｉ相联系,这至少部份和ＥＬ２及ＥＬ１２缺陷有关．对掺Ｓｅ样品的２０４ｃｍ－１和２５８ｃｍ－１峰,可能和小砷簇的振动模式有关．而７７ｃｍ－１和１８５ｃｍ－１峰则应是由无序活化Ｒａｍａｎ散射引起的．辐照结果显示,小砷簇和无序态随辐照剂量增加而增加．本文还将讨论其它的有关的Ｒａｍａｎ峰     

抗癌药物顺式二氯二胺合铂的合成及理化特性研究

采用傅里叶变换红外光谱、差热分析等近代物理方法研究了抗癌药物顺式二氯二胺合铂的特性、结构以及构效关系．结果表明,ｃｉｓ－［Ｐｔ（ＮＨ３）２Ｃｌ２］熔解分为放热过程和吸热过程,放热峰为３０１．２３７℃,吸热峰为３０６．９３２℃．Ｐｔ－Ｎ伸缩振动频率在３３００ｃｍ－１附近分裂成３３００ｃｍ－１和３２１０ｃｍ－１两个吸收峰,在１３００ｃｍ－１处分裂成１３２５ｃｍ－１和１３００ｃｍ－１两个吸收峰．Ｐｔ－Ｃｌ伸缩振动峰在３３８ｃｍ－１．     

CO为探针分子的原位FT—IR技术研究Pd／HM表面金属的分散态

以ＣＯ探针分子的ＩＲ研究表明,在Ｐｄ／ＨＭ上,钯还原前后具有不同对ＣＯ的线式吸附态。还原前分别在２１５６ｃｍ＾－１和２０４５ｃｍ＾－１处有两个ＩＲ吸收峰;而还原后在２０００ｃｍ＾－１附近出现几个重叠在一起的ＩＲ吸收峰,２１５６ｃｍ＾－１处小峰几乎消失,这是因为Ｐｄ＾２＋ＰＵＨＣＧＩＰ ＤＲ ＸＨ ＦＨＮ Ｒ     

嘌呤的电化学还原及其形式电位E^0的计算

通过正交设计，选择最佳条件，使嘌呤的电极过程变为准可逆过程，利用简单准可逆过程的脉冲极谱理论，通过图解法，获得嘌呤的表观动力学参数．嘌呤二个峰的电子传递系数ａ分别为０．０８和０．１４，标准异相速度常数ｋｓ分别为３．５×１０－３ｃｍ／ｓ和２．２×１０－３ｃｍ／ｓ．结合循环伏安法，计算出嘌呤相应峰的形式电位Ｅ０＇分别为－１．１６Ｖ（ＶＳ．ＳＣＥ）和－１．３０Ｖ（ＶＳ．ＳＣＥ）．研究结果表明，Ｅ０＇与嘌呤浓度无关，而互ｐＨ值有关     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-