宝钢IF钢大生产产品性能预测

以ＢＰ算法为基础开发了ＡＮＮ学习预测系统,用于宝钢ＩＦ钢大生产产品性能预测．同时,应用在宝钢ＩＦ钢大生产数据对该系统进行了测试和分析,并与多元线性回归结果进行预测精度比较．结果表明,ＡＮＮ学习预测系统,除σ_(０.２)误差较高（９．０％）外,σ_ｂ,δ,ｒ和ｎ值均＜５．０％,且比多线性回归方法精度高．     

联想记忆系统的学习算法设计(I)

基于牛顿向前插公式设计了一种新的联想记忆系（ＮＦＩ－ＡＭＳ）的学习算法，用以实现任意阶的多变量多项式函数的无误差逼近。该系统与传统类型的ＣＭＡＣ－ＡＭＳ相比，具有学习精度高和记忆空间小的特点；且比多层的ＢＰ网络具有学习算法简单和收敛速度快的特点。数值模拟表明，这种ＮＦＩ－ＡＭＳ在信号处理，模式识别，及高精度的实时智能控制等领域具有很大的应用潜力。     

采用人工神经网络进行潮流计算的研究

将人工神经网络应用于电力系统的潮流计算，提出了一种新算法，利用ＡＮＮ的学习功能，找到网络合适的权值，以提高计算速度。     

基于人工神经网络和专家系统结合运用的电网故障诊断技术的研究

人工神经网络（ＡＮＮ）和专家系统（ＥＳ）的结合是智能系统研究的发展方向。本文对ＡＮＮ和ＥＳ结合用于电力系统故障诊断问题进行了研究，提出一种新的电力系统故障诊断方法。该方法综合了ＥＳ和ＡＮＮ各自的优点，充分利用ＥＳ的推理能力和ＡＮＮ的学习能力，由ＥＳ根据故障报警信息搜索电网数据库，提出故障假设，再由ＡＮＮ对故障假设进行诊断。该方法教授给ＡＮＮ的知识是电网通用的故障判断知识，具有较强的能用性。研究表明ＡＮＮ和ＥＳ结合用于电网故障诊断是非常有效的。     

基于人工神经网络和专家系统结合运用的电网故障诊断技术…

人工神经网络（ＡＮＮ）和专家系统（ＥＳ）的结合是智能系统研究的发展方向。本文对ＡＮＮ和ＥＳ结合用于电力系统故障诊断问题进行了研究，提出一种新的电力系统故障诊断方法。该方法综合一ＥＳ和ＡＮＮ各自的优点，充分利用ＥＳ的推理能力和ＡＮＮ的学习能力，由ＥＳ根据故障报警信息搜索电网数据库，提出故障假设，再由ＡＮＮ对故障假设进行诊断。该方法教授给ＡＮＮ的知识是电网通用的故障判断知识，具有较强的能用性。研究表明     

关于具有足够幂等元的强分次环上的分次Morita对偶

设Ｇ和Г分别是单位元为ｅ和ε的乘群，Ｒ＝＋ｇ∈ＧＲｇ和Ａ＝＋σ∈ГＡσ辊具有足够幂等元的Ｇ－型和Г型强分次环，Ｕ＝＋ｇ∈Ｇσ∈ГＵσ是单式双分次（Ｒ，Ａ）－双模，Ｋ－ｃＵε，Ｍ（Ｎ）是所有Ｕ－反射单式分次左Ｒ－（右Ａ－）模组成的Ｒ－ｇｒ（ｇｒ－Ａ）的完全子范畴，Ｃ（Ｄ）是所有Ｋ－反射单式在Ｒｅ－（右Ａε）模组成的Ｒｅ－ｍｏｄ（ｍｏｄ－Ａε）的完全子范畴。     

混晶GaAs_(1-x)P_x∶N(x=0.88)中NN_1对束缚激子发光的声子伴线

采用选择激发的实验手段，在混晶ＧａＡｓ１－ｘＰｘ∶Ｎ（ｘ＝０．８８）的光致发光谱中观察到ＮＮ１对束缚激子发光的声子伴线．通过荧光谱线窄化效应，在发光谱中得到与ＧａＰ∶Ｎ低温光致发光谱中Ａ线相似的ＮＮ１线的声子伴线精细结构，其中包括ＴＡ，ＬＡ，ＬＯ等声子伴线．这个结果在实验上有力地证实了在混晶ＧａＡｓ１－ｘＰｘ∶Ｎ中的确存在着ＮＮ１发光中心．     

形变硬化指数与强度的关系

从硬化指数的定义出发导出了形变硬化指数ｎ与强度参量之间的关系为ｎ＝Ａ（１－σⅠ－／σⅡ）＋Ｂ，σⅠ和σⅡ为真应力应变曲线上一直线段两端点的应用力，Ａ和Ｂ为常数，它适用于单一ｎ值情况，双ｎ特性，单调加载和循环应力应弯曲线，对均匀变形阶段，又导出了ｎ和屈强比的关系，即ｎ＝１－√σｓ／σｂ，该式没有任何特定常数和经验常数，和测量值相比９０％以上的数据的绝对误差在±０．０３以内，它表示了材料的均匀变形能力     

基于遗传算法的神经网络在局部放电模式识别中的应用

针对ＢＰ神经网络（ＮＮ） 在大型发电机局部放电模式识别中存在的收敛速度慢、容易陷入局部极小点的问题,提出采用遗传算法（ＧＡ） 作为神经网络的学习算法．并且根据神经网络结构的特点,构造了新的遗传算子．结果表明,与ＢＰ神经网络相比,ＧＡ 神经网络的收敛性能和推广能力都有了明显提高     

联想记忆系统的学习算法设计（Ⅰ）

基于牛顿向前插公式设计了一种新的联想记忆系（ＮＦＩ－ＡＭＳ）的学习算法,用以实现任意阶的多变量多项式函数的无误差逼近。该系统与传统类型的ＣＭＡＣ－ＡＭＳ相比,具有学习精度高和记忆空间小的特点;且比多层的ＢＰ网络具有学习算法简单和收敛速度快的特点。数值模拟表明,这种ＮＦＩ－ＡＭＳ在信号处理,模式识别,及高精度的实时智能控制等领域具有很大的应用潜力。     

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-