学生信息管理系统设计与分析

首先讨论了学生信息管理系统的背景和构成系统的功能需求，论述了学生信息管理系统的设计与实现，其中主要讨论了如何设计系统，以及系统实现中用到的主要算法，然后进行了学生信息系统的展望，简单讨论了本系统需要改进和完善的地方。     

用Luenberger观测器观测线性延时系统的设计

讨论了线性延时系统状态观测器的设计问题，给出了用Ｌｕｅｎｂｅｒｇｅｒ观测器观测线性延时系统的设计方法及渐近观测器的稳定判据，应用对偶原理讨论了线性延时系统状态控制的设计问题，应用分离原理讨论了线性延时系统带状态观测器的状态控制器的设计问题．给出了证明实例．     

用Luenberger观测器观测线性延时系统的设计

讨论了线性延时系统状态观测器的设计问题，给出了用Ｌｕｅｎｂｅｒｇｅｒ观测器观测线性延时系统的设计方法及渐近观测器的稳定判据，应用对偶原理讨论了线性延时系统状态控制的设计问题，应用分离原理讨论了线性延时系统带状态观测器的状态控制器的设计问题。给出了证明实例。     

非线性生物种群方程解的性质

讨论一类非线性生物种群方程，证明了解的存在性和唯一性，同时，讨论了系统的稳定性，利用临界增生率，得到了系统渐近稳定、不稳定的充分条件．     

基于JAVA的短消息系统的设计与实现

讨论了基于java的短消息系统的设计与实现，该系统通过隐藏短消息通信协议的细节，为应用开发提供了统一的接口。同时，系统流程，应用接口和其他的关键部分的实现也作了相应的讨论。     

模糊时序逻辑的语义及其广义重言式

讨论了时序命题逻辑系统MPTL模糊化的问题，给出了模糊时序命题逻辑系统FMPTL的语义及其广义重言式的概念，并讨论了广义重言式的分类．     

脉冲广义非线性测度型微分系统的边值问题（英文）

本文讨论了脉冲广义非线性测度型微分系统边值问题解的结构。借助广义系统和测度型微分系统的基本理论，给出了所讨论系统边值问题的适定条件以及解的Ｇｒｅｅｎ函数矩阵表示。并在有脉冲的影响下，讨论了Ｇｒｅｅｎ函数矩阵的性质。     

高校教师资料管理系统的设计与实现

分析和讨论了高校教师资料管理系统的系统结构与主要功能，然后着重论述了该系统主要数据库表的设计，最后详细讨论了该系统的实现方法。     

Internet技术在监控系统中的应用研究

该文讨论了在分布式计算机监控系统中常用的网络通信技术及其特点，研究了基于Internet技术构建计算机监控系统的方法，针对Internet技术用于监控系统中的实时性问题进行讨论并提出解决方法。     

一类非线性控制系统的全局稳定性

讨论了一类由若干非线性子系统互连组成的复杂非线性控制系统的全局稳定性问题。首先给出系统的描述，得出系统的状态方程，然后讨论并得出了系统存在唯一平衡点及全局指数稳定性的充分条件。     

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.     

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-