Quantale中的弱S-素元及其性质

研究了Quantale中的弱S-素元与极小弱S-素元的一些性质.给出了一类Quantale中的弱S-素元的等价刻画,证明了弱S-素元在满足一定条件的映射下的像仍然是弱S-素元以及当S具有左吸收性时,双侧元是弱S-素元当且仅当它是素元.得到了在幂等双侧Quantale中极大元是弱S-素元.同时,定义了本质弱S-素元,探讨了弱S-素元与本质弱S-素元之间的关系.     

BCI－代数的换位元

在ＢＣＩ一代数中引入了换位元的概念．证明了换位元的若干重要性质，讨论了换位元与极大元、极小元以及半群之间的关系．     

省暨合肥市举行纪念4．26世界知识产权日——万人签名活动

2005年“1346”行动计划完成投资152．85亿元，其中续建项目99．33亿元，新开工项目44．13亿元，预备开工9．13亿元，前期工作0．26亿元。分项来看，2005年四大基地投资100．74亿元，其中加工制造业基地投资34．86亿元，高新技术研究和产业化基地14．41亿元，旅游文化教育（含服务业）产业46．56亿元，城郊型农业示范基地4．91亿元。     

基于模糊元胞自动机的复杂图案、纹理生成实现

结合模糊规则和元胞自动机的机理,分析了模糊元胞自动机的基本原理,根据元胞自动机的不同构形,提出多种模糊元胞自动机演化规则,并根据这些基本规则,分别用3邻元、5邻元以及9邻元进行元胞状态更新,生成了多颜色\复杂、漂亮的图案和织物纹理,其结果在针织织物设计中意义重大.     

面向产品族配置的约束网络模型及配置方法

针对面向产品族的产品配置问题,建立了客户需求族模型,引入了需求元与配置元的概念;构建了需求元与配置元之间以及配置元与配置元之间基于特征属性匹配的约束网络模型。按需求元权重依次进行约束传播,通过预处理技术缩小与需求元有约束关系的配置元值域空间,减小了配置求解的搜索空间,采用非二元弧一致回溯算法对于未确定的配置元进行约束求解,得到满足客户需求的配置结果集。以某底盘产品的配置设计实例验证了该方法的有效性。     

关于广义分配伪格

引入广义分配伪格的概念,讨论并证明了分别当乘法零元、加法恒等元、零元、左单位元、右单位元、单位元存在时广义分配伪格的一些性质;进而表明广义分配伪格是分配伪格、坡代数、分配格的自然推广.     

k元线性变换及其矩阵的性质

给出k元线性变换的等价条件,讨论了k元线性变换的性质;然后给出了k元不变子空间的定义,讨论了在k元不变子空间下k元线性变换的矩阵的性质。     

安利 爱心不断

200万元、1000万元、1600万元、3000万元……不断累积的数字代表着安利公司对灾区永不停止的爱心。     

亚像元定位之邻域像元选取问题研究

混合像元普遍存在于各类遥感影像中,混合像元分解仅能获取像元内部各类地物丰度数据,要获取其空间分布信息还需要进行亚像元定位处理.空间相关性是目前大多数亚像元定位方法的理论基础,而距离是主要决定因素.同时距离决定了亚像元邻域范围内参与其所属类别判定的像元位置和个数,从而决定亚像元空间排布结果.因此针对亚像元定位过程中邻域像元选取问题,就常见的邻域选取方法进行对比试验,并就各种方法的效果进行探讨.     

华中理工大学出版社1991年最新书目

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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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the