关于二元的Thiele型矩阵插值连分式的系数算法

本文给出了二元矩阵插值连分式的一个系数算法，该算法具有递推运算的特点，适宜于计算机运算，给出的数值例子说明了这种算法的有效性。     

采矿计算机辅助设计中的多边形运算

从图形区域化描述及图素定向方面着手，引入特征值概念，对采矿计算机辅助设计中的多边形运算进行了全面研究．给出了简化多边形运算的计算公式，讨论了多边形算法构造的一般过程．最后给出了通用多边形运算算法，并用实例进行了验证．     

不定长整数乘法的算法研究

通过对整数乘法的研究给出了基于移位运算和加法运算的不定长整数乘法的算法,根据所提算法给出了基于双链表整数的乘法算法实现的程序设计,计算结果表明,该算法能够提高乘法运算的效率.     

大数混合基表示及其基本运算

将大数采用混合基表示，对大数的加法，减法与比较运算给出相应的算法，并对加法机器上的乘法，除法，模运算以及求最大公因子的算法进行了移植。     

求PERT网络所有线路的一种矩阵算法

本文给出了利用网络邻接矩阵间的运算，求ＰＥＲＴ网络所有线路的矩阵方法。本算法属多项式算法，计算简单，易于计算机实现。     

基于记录标识符的查询处理算法

给出了一种通过记录标识符的运算实现数据库查询处理的算法，讨论了有关的查询优化技术和算法特点。     

阶梯式动态矩阵控制及在温度控制系统中的应用

论文针对预测控制算法需要进行复杂矩阵运算的缺点，把阶梯式控制策略运用在动态矩阵控制算法中，使矩阵运算变成标量运算，计算大为简单，而且鲁棒性增强，很适合于实际应用，文中给出的电烤箱控制效果显示出算法的优良性能。     

Flood方法的改进

本文对Flood方法做了改进,并且给出了改进算法运算的上限,编制了改进算法运算框图。     

一种高效的基四浮点蝶形运算模块研究

FFT是数字信号处理中的一种非常重要的算法，蝶形运算模块是FFT处理其中的重要构造模块，本文给出了一个高效的基四蝶形运算模块结构设计方案并进行了实验验证，验证结果证明，该结构利用蝶形运算中重复计算的特点，进一步节约了蝶形运算模块的资源。大大提高了运算模块的使用效率。     

平滑曲线的折线法刀补算法研究

本文针对数控插补运算中二次曲线及高次曲线刀补运算的难题，提出了“折线法”刀补算法，并分别给出“左刀补”与“右刀补”情况的实现方法。     

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