重芳烃石油磺酸盐与M^2＋和地层砂的沉积与吸附

利用分光光度法和容量法分别考察 芳烃石油磺酸盐与Ｃａ＾２＋、Ｍｇ＾２＋的沉积规律有在地层砂上的吸附规律。实验表明：当固定Ｃａ＾２＋、Ｍｇ＾２＋混合液浓度改变ＨＡＰＳ浓度时,ＨＡＰＳ与Ｃａ＾２＋、Ｍｇ＾２＋的作用呈现出沉淀溶解,再沉淀的普遍规律,且沉淀量随着ＨＡＰＳ和Ｃａ＾２＋、Ｍｇ＾２＋混合液浓度的增加而增加;ＨＡＰＳ在地层砂上的吸附等温线呈“Ｓ”型,表现出多层吸附的特征。     

Fe（Ⅲ）—TPPS3配合物光谱电化学研究

用吸收光谱，单扫描极谱及光谱电化学方法研究了Ｆｅ６２＋三磺基四苯基卟啉的水溶性配合物在ｐＨ－４．０的ＨＡｃ－ＮａＡｃ缓冲体系中的性质。实验证明Ｆｅ＾２＋与ＴＰＰＳ３在９０℃下加热８０ｍｉｎ可以反应完全，配合物主要以ＴＰＰＳ３二聚体和Ｔｅ－ＴＰＰＳ３单体的开矿存在于该介质中，Ｈ＾＝参与了配合物的电极反应，Ｆｅ－ＴＰＰＳ３体系中配合物的组成比为１：１，Ｆｅ－ＴＰＰＳ３在电极上不原为Ｆｅ－ＴＰＰＳ２为可     

硫脲螯合树脂的合成及其吸附性能研究

用以聚丙烯酸甲酯为骨架的乙二胺树脂与异硫氰酸苯酯反应，合成了硫脲螯合树脂，研究了该螯合树脂对Ａｕ＾３＋，Ｐｔ＾４＋，Ｐｄ＾２＋，Ａｌ＾３＋，Ｆｅ＾３＋，Ｃｏ＾２＋，Ｎｉ＾２＋等离子的吸附性能。结果表明，该树脂对Ａｕ＾２＋，Ｐｔ＾４＋，Ｐｄ＾２＋的吸附容量较高，对Ａｌ＾３＋，Ｆｅ＾３＋，Ｃｏ＾２＋，Ｎｉ＾２＋吸附容量较低，对Ａｕ＾３＋，Ｐｔ＾４＋，Ｐｄ＾２＋具有较好的吸附选择性，能定量吸附。     

Fe—TPPS3配合物电化学研究（Ⅱ）

用吸收光谱法和单扫描极谱法研究了Ｆｅ＾２＋与三磺基四苯基卟啉水溶性配合物在５．２〈ｐＨ〈５．９的ＨＡｃ－ＮａＡｃ底物中的性质。实验表明Ｆｅ＾２＋与ＴＰＰＳ３在该介质条件下，９０℃加热１５ｍｉｎ即可反应完全，确定了产物的组成比为１：１，Ｈ＾＋参与了这种电活性配合物的电极反应，ｐＨ对电活物性质的还原峰电流和峰电位影响明显；在ＴＰＰＳ３过量情况下，还原峰电流与Ｆｅ＾２＋的浓度成正比，可作为一种测定２铁的     

FeⅡ-TPPS_3配合物光谱电化学研究

用吸收光谱、单扫描极谱及光谱电化学方法研究Ｆｅ２＋三磺基四苯基卟啉（简写为ＴＰＰＳ３）的水溶性配合物在ｐＨ～４．０的ＨＡｃ－ＮａＡｃ缓冲体系中的性质。实验证明Ｆｅ２＋与ＴＰＰＳ３在９０℃下加热８０ｍｉｎ可以反应完全,配合物主要以ＴＰＰＳ３二聚体和ＴｅⅢ－ＴＰＰＳ３单体的形态存在于该介质中,Ｈ＋参与了配合物的电极反应,Ｆｅ－ＴＰＰＳ３体系中配合物的组成比为１∶１,ＦｅⅢ－ＴＰＰＳ３在电极上还原为ＦｅⅡ－ＴＰＰＳ２为不可逆过程。     

表面活性剂对卟啉荧光光谱影响的研究

研究了一系列不同类型表面活性剂对不同存在形体的卟啉（Ｈ２Ｐ和Ｈ４Ｐ＾２＋）ＴＡＰＰ，ＴＰＰＳ４和ＴＰｙＰ荧光光谱的影响，讨论了影响卟啉的荧光激发光谱，荧光发射光谱和荧光强度的主要因素，得出了一些规律和结论。     

次亚磷酸根在Pt电极上的电氧化研究

用循环伏安法研究Ｈ２ＰＯ２＾－在铂电极上的电氧化行为,并讨论了电氧化的机理。结果表明,在０．５ｍｏｌ／ＬＨ２ＳＯ４介质中,Ｈ２ＰＯ＾－２抑制氢和氧在Ｐｔ电极上的吸附,并通过两种径在０．４－１．２Ｖ的电位范围发生氧化：Ｈ２ＰＯ＾－２直接氧化形成Ｈ２ＰＯ３＾－３和Ｈ２ＰＯ＾２通过前置化学步骤形成吸附中间物Ｈ３ＰＯ３然后进一步电氧化形成Ｈ３ＰＯ４。所述机理可以较好地解释电位扫描速度、介质温度及次亚磷酸根     

Hn^＋离子的产生和鉴别

作者从高频离子源产生的离子束中，分析证实存在Ｈ４＾＋和Ｈ５＾＋的团族离子，对１．８ＭｅＶ的Ｈ４＾＋和Ｈ５＾＋信号的能谱测量表明，它们极容易分解成Ｈ４＾＋，Ｈ３＾＋，Ｈ２＾＋（Ｈ２）和Ｈ＾＋（Ｈ）等产物，并从实验事实出发，对Ｈ４＾＋和Ｈ５＾＋的形成和分解反应作了分析讨论。     

用彭宁离子捕集器产生并贮存H4^＋

通过反应Ｈ２＾＋＋Ｈ２→Ｈ４＾＋制备并存贮Ｈ４＾＋,存贮时间长达０．１ｓ量级,长于以前观测到的μｓ量级的稳定时间,处于基态的Ｈ２＾＋,Ｈ２有进行上述反应,强磁场可能有助于该反应。     

5——（4——羟基苯基）——10,15,20——三苯基卟啉在醋酸中电子？…

研究了５－（４－羟基苯基）－１０,１５,２０－三苯基卟啉（Ｈ２Ｌ）在醋酸中电子吸收光谱,结果表明,５－（４－羟基苯基）－１０,１５,２０－三苯基卟啉在冰醋酸中以二酸形式Ｈ４Ｌ＾２＋和游离碱Ｈ２Ｌ形式存在,二者之间存在着电离平衡：Ｈ４Ｌ＾２＋＝Ｈ２Ｌ＋２Ｈ＾＋。     

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.     

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.     

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