固体氧化物电解质膜反应器在非均相催化中的应用

固体氧化物电解池用作膜反应器，可以共生电能和化学产品，通过固体电解质电势分析法与动力学测量相结合可进行非均相催化反应机理研究；该膜反应器还可用于催化剂活性的电化学改性研究，本文主要从以上3个方面对固体氧化物膜反应器在非均相催化方面的应用作了归纳。     

膜催化技术的研究进展

膜催化技术是催化反应和产品分离集成在一起的过程，是催化学科的前沿领域之一。文中介绍了这一新技术在反应器类型、膜及膜催化反应性能等方面的研究进展情况，分析了膜催化研究中存在的问题，并对膜催化技术的开发应用进行了展望。     

催化氧化法去除染液COD的试验研究

试验研究了氧化剂和催化剂的种类及用量、最佳处理ｐＨ范围及各种化学药剂的投加方式等操作条件对染液ＣＯＤ去除效果的影响，确定了氧化剂和催化剂的最佳组合及最佳处理条件．分别对化学氧化法和催化氧化法、化学絮凝法和絮凝催化氧化法去除染液ＣＯＤ的效果进行了对比．结果表明：在化学氧化和化学絮凝处理过程中适当加入催化剂，可以使染液ＣＯＤ的去除效果得到明显提高．     

选择性催化氧化H2S的催化剂研究

在考察了几种单组分氧化物把硫化氢催化氧化为单质硫的基础上，采用共沉淀法合成了3种复合氧化物催化剂A，B，C，并考察了它们的催化活性和选择性．结果表明，在一定条件下，催化剂B的转化率和选择性分别在90％和97％以上，在40h的催化性能稳定性测试中，其转化率和选择性均能保持稳定，具有良好的催化性能．     

射流絮凝生物接触催化氧化处理流程的研究

本文根据化学絮凝与生物接触催化氧化原理,提出化学絮凝生物接触催化氧化的处理流程。经试验筛选,用FeCl_3可改善絮凝吸附性能和提高催化氧化速度。经方差分析,确定了影响处理效果的主要因素,得出了优化的运行工作条件,研究了该流程应用于实际工程的可行性。     

负载型羟基氧化物的电催化性能研究进展

 羟基氧化物微结构因具有特殊结构、高比表面积和高活性的性质,显示出卓越的分子识别特性、表面反应活性和电催化活性。近年,运用功能单元作为负载提高羟基氧化物微结构的催化性能成为研究者关注的热点。本文将羟基氧化物的结构优势与功能单元的催化特性结合起来,综述了负载型羟基氧化物,如FeOOH和AlOOH的合成方法及应用,分析了负载了功能单元(贵金属、金属氧化物、羟基氧化物等)的羟基氧化物在循环伏安法、交流阻抗、计时电流法等电化学催化研究方面的进展,并对负载型羟基氧化物的研究方向进行展望。     

混合传导陶瓷透氧膜

氧离子-电子混合传导陶瓷氧化物可以广泛用于空气分离制氧、碳氢化合物氧化膜反应器以及气体传感器与固体氧化物燃料电池的电极等，越来越引起人们极大的兴趣．对氧离子-电子混合传导陶瓷氧化物、合成方法以及在作为氧渗透膜方面的应用等作了详细论述．     

不锈钢着色的电化学原理

按照电化学的基本原理,讨论了在着色过程中,不锈钢电势的性质、控制因素以及不锈钢电势与氧化物膜厚的关系。利用实验数据,获得了不锈钢电势与氧化物膜厚,氧化物膜厚与着色时间以及不锈钢电势与着色时间之间的经验方程式。     

膜催化技术的现状与展望

介绍了膜催化技术。分析了膜材料的分类，膜催化反应和膜反应器的机理，膜反应器的性能及目前应用现状，提出了所面临的问题以及对膜催化技术前景的展望。     

水温对自然水体生物膜上铁、锰氧化物形成过程的影响

利用自然水体培养的生物膜进行膜上铁、锰氧化物含量变化的分析。结果表明,用于培养生物膜的水体温度对膜上铁、锰氧化物的形成影响很大,并与膜上铁、锰氧化物的含量呈显的线性关系。     

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-