应用绿灯有效利用率实现感应控制的原理及方法研究

本文提出了一种具有自适应功能的交通感应控制方法，并详细阐述了实现这一控制的具体原理及计算方法，这种控制方法根据实时的交通流检测数据并算出实时的绿灯有效利用率来调节绿灯的长短从而实现感应控制。通过定性和定量的分析表明所述方法是可行和有效的，具有实用价值。     

加强能力和素质的培养———开设定性和半定量物理实验

基于定性与半定量物理实验，定性和半定量方法被引入到物理教学中。这种方法不仅将理论教学和实验教学有机地结合起来，同时也为学生开辟了一个新的学习园地。由于其生动活泼的形式和丰富多采的内容，我们相信这种方法能达到进一步有效地培养学生能力和素质的目的     

定性有序数据聚类技术及其在环境感应调查中的应用

在对环境感应调查定性有序数据聚类技术的方法进行探讨之后，将该方法应用于大连市香炉礁街居民环境生态感应的调查实践中，认为此项技术简单易行，对提高定性数据的处理水平和有效地开展环境感应调查工作有积极的意义     

X射线衍射物相分析的一种简单方法

文章介绍了一种利用计算机辅助进行Ｘ—射线衍射标准数据图象拟合显示，来进行物相定性定量分析的设计思想和分析方法。该方法是通过利用结构化程序设计开发的应用软件，在Ｘ—射线衍射物相定性初步分析的基础上，进行标准数据图象拟合显示，通过与实验所得到的衍射图样相比较，可以得到物相定性定量分析的结果，因此具有一定的科研和使用价值。     

浅谈C语言中指针使用不当的危险性

C语言是一种中级语言，它的指针具有强大的功能，它的功能是其它高级语言所不能比拟的，但是，如果对指标负使用不当就会使系统处于极端危险的状态，有时会使系统丢失数据，有时会使系统‘死机’，本文详细讨论了产生这种情况的原因，同时也给出了正确的使用方法。     

用于决策支持的贝叶斯网络

联机分析处理只能用于决策的表层知识，数据采掘却能提供深层次的知识，即提供数据内部所隐藏的有用知识，贝叶斯网络是数据采掘的一个非常有效的工具，它能够定性和定量地分析属性之间的依赖关系，并进行概率推理。     

基于聚类分析和非参数检验的房地产预警指标体系选择

为了寻求一种有效的房地产预警指标选择方法，基于定量方法并与定性方法相结合，在现有房地产指标数据库的基础上，通过聚类分析和非参数检验，建立了一套预警指标体系，然后利用它对上海市房地产市场进行了扩散指数（DI）预警实证分析。结果表明，基于聚类分析和非参数检验的预警指标体系可以较为准确地对房地产市场的景气状况进行客观度量，这种指标选择方法是有效的。     

反馈控制是促使体育教学与运动训练的最优化逼近的必由之路

控制论、信息论、系统论是二十世纪以来最伟大的理论成果之一，它们几乎同时产生、同步发展，共同构成二十世纪新型的综合性基础学科，被誉为“全科学的方法”，这种方法不仅深刻地反映了客观世界的真实图景，而且它对科学研究、组织管理、领导决策、以及各项具体工作，都有很强的指导性，本文对信息反馈原理在体育教学与运动训练中的应用做了探索性的论述，这对体育教学和运动训练的观念变革具有一定的理论指导意义。     

V函数在定性研究中的应用

大家知道,李雅普諾夫函数V是研究稳定性問题的重要工具。近年它又被推广应用于微分方程的定性研究。这是V函数方法的新发展。 V函数方法是李雅普諾夫发展Poincare在定性研究中所采用的地形线方法得来的,这个方法的实貭是根据函数V沿着积分曲线的变化情况来判断积分曲线的性态。因此,很自然会想到它应当可以用来研究积分曲线分布的拓扑图形。說,他早就有这种想法并且在他和他的学生等人的工作中得到証实。他最近写的短文是对这方面工作的概述。到目前为止,这方面的工作还做得很少。     

基于云模型的数据挖掘技术

定性概念和定量数据之间的转换在空间数据挖掘中起了至关重要的作用．云模型是定性概念和定量描述之间的转换模型，基于云模型，本文提出了在概念空间和特征空间中以不同的层次进行空间数据挖掘的新方法“数据-概念-知识”．     

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