流化床颗粒层过滤器过滤元件阻力实验研究

以理想状况过滤元件阻力模型为指导，实验研究了流化床颗粒层过滤器过滤元件基本阻力的特征，料层高度，元件到布风板的距离等因素对元件基本阻力的影响规律，建立了具有实用价值的元件基本阻力表达式，实验表明，在实用操作气速范围内，元件基本阻力随流化床操作气速增加而增大，证实了模型假设的合理性。     

基于拮抗作用机制的仿生致动元件设计

为了减少致动元件的能量消耗，模拟自然肌肉高效驱动的拮抗作用机制，设计了以力学拮抗作用的能量转化而实现运动能量输出的新型致动元件.以高能量密度的磁体和具有良好伸缩性能的聚合物构建致动元件，分析了致动元件的磁场力与弹性力的拮抗特性及其运动触发机制，同时,实验分析了以电磁线圈为拮抗作用触发元件的力学特性.结果表明，电磁线圈能够有效触发具有磁场能和弹性势能元件的拮抗作用，以力学拮抗形式的能量转换方式可构建高效致动元件.     

一种实现气敏元件互补增强原理的新结构①

提出了实现气敏元件互补增强原理的一种新结构，即Ｐ－Ｎ型半导体组合气敏元件理论分析表明，该Ｐ－Ｎ型气敏元件也可实现灵敏度的倍增，同时还给出了元件实际设计应满足的条件。     

提高气敏元件灵敏度及选择性的研究

通过向元件内掺入不同的杂质或在表面涂敷有机膜，提高了ＬａＦｅＯ３乙醇乙气敏元件 灵敏度，阐述了用Ｐ型γ－Ｆｅ２Ｏ３气敏元件和Ｎ型ＬａＦｅＯ３气敏元件构成补偿式气敏元件的原理及实现补偿的条件，结果表明，上述办法提高了元件的灵敏度及选择性。     

模拟电路的故障元件定位法

本文研究模拟电路的故障定位问题，文中给出了故障元件定位的理论和方法，阐明了故障元件定位法的原理，故障元件可定位的条件，以及故障元件定位的算法，这是故障激励论的进一步应用和发展。     

气－热复合敏感元件的理论分析

本文从理论上分析了热敏元件对气敏元件的温度补偿原理，指出了构成低温漂复合元件分立元件需要满足的条件，阐述了实验上的可行性。     

开发电路元件的一种新理论

本文论述一种开发理想电路元件的理论和方法，这种理论称为元件映射理论，文中提出了电路变量空间和电路参数空间的概念，阐述了可以提示元件本质和特征的理想电路元件的基本概念。同时，还提出了可用于探索和开发的理想电路元件的方法和途径，最后，应用映射理论研究了广义阻抗、导纳映射器。     

一种新型的V/F转换器的温度补偿原理和方法

提出了一种新型的V／F转换器，它是以半导体敏感元件Z元件为基础，用一个电阻和电容为辅助元件，产生震荡，用一个加法器和另外一个Z元件作为补偿元件，通过控制输入电压的方法补偿因温度漂移对Z元件产生的工作点的偏移，最后输出高幅值的频率信号，并介绍了这种V／F转换器温度补偿的原理和方法。     

半导体气敏陶瓷的研究方法

以SnO2为基体材料的气敏元件为例，总结了半导体气敏陶瓷元件的制备过程和研究方法，分析了掺杂、热处理和表面修饰工艺对气敏元件性能的影响，介绍了气敏元件性能的实验和检测方法。     

电容型 CO_2 气敏元件的研制

研究了以粉末冶金技术制备的四方晶型ＢａＴｉＯ３粉为主体原料，机械均匀掺杂一定摩尔配比的高纯ＣｕＯ粉体，获得电容型气敏元件的可能性．实验考察了元件温度、频率、浓度特性．结果表明所制元件对ＣＯ２气体呈现一定的敏感特性，该元件可测ＣＯ２气体浓度（体积分数）范围广（０～９５％），在低浓度０～５％范围内，元件灵敏度与ＣＯ２气体浓度呈线性关系，利于直接标定，是一种很有发展前途的新型气敏元件．     

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