一种不确定区域间的拓扑关系模型

空间区域间拓扑关系模型的发展是空间推理，地理信息系统（GIS）和计算机视觉等领域一个非常重要的主题，在实际应用中人们对不确定区域间的拓扑关系模型不断提出更高的要求，近年来受到相关领域研究者的极大关注。在分析已有模型的基础上给出了一个不确定区域间的拓扑关系模型，该模型具有较高的认识合理性，将分明区域作为不确定区域的特例来统一处理，推断过程简便直观，可以基于已知事实给出所有可能的拓扑关系供用户选择。     

关于拓扑关系复合表适用性的实验与分析

实现了一个拓扑推理算法,并以基本不同平面图Ｋ５为实验对象,研究了拓扑关系复合表的适用性问题,实验结果表明,拓扑关系复合表只适用于同维实体间的拓扑推理。     

一类带洞区域与简单区域间拓扑关系的表示及推理模型

基于8 交集模型, 加入可对一类带洞区域和简单区域间拓扑关系进行约束的条件, 对其拓扑关系进行表示, 得到了一类带洞区域和简单区域间的17种拓扑关系. 通过对一类带洞区域和简单区域间的17种拓扑关系进行研究, 建立了拓扑关系推理系统, 并建立了17种拓扑关系的推理复合表. 根据拓扑关系复合表, 通过对目标试验田区域和降雨云区域的拓扑关系进行推理, 计算出各种灌溉概率, 并制定出有效的灌溉机制, 从而优化水资源的利用.     

规则中不确定性的表示与传播：信任函数的情形

研究了信任函数理论框架下规则中的不确定性的表示与传播，引入信任结构表示不确定的规则。定义了信任结构的复合与分解运算，由此提出了一种新的不确定推理模式。     

基于方向关系的不确定区域拓扑关系推理

用宽边界区域模型建模不确定区域,把不确定区域间的拓扑和分析关系表示为确定区域间拓扑和分析的组合表示,并根据宽边界区域方向关系矩阵与宽边界区域扩展九交矩阵的联系,提出了基于方向关系的推理拓扑关系方法。根据推理方法可直接推理拓扑关系,因而可以节省计算量和存储空间。     

基于拓扑变换的模糊推理

建立了基于拓扑变换的模糊推理的理论原理．在推理规则的前提与结论集合上分别建立Fuzzy拓扑，构造出了拓扑变换推理函数．     

一种不确定区域间的方向关系模型

基于区间值及其运算性质给出了不确定区域间方向关系的表示及推理方法. 该方法不同于基于经典模糊集及其截集的方向关系模型, 利用区间值方向关系矩阵分析不确定区域间方向关系的隶属程度, 将不确定区域间的方向关系划分为不确定区域与不确定区域间的方向关系、 不确定区域与分明区域间的方向关系、 分明区域与不确定区域间的方向关系、 分明区域与分明区域的方向关系4种类型. 将分明区域作为不确定区域的特例统一处理.     

一类带单洞区域与两个简单区域间拓扑关系的表示

基于区域连接演算(region connection calculus, RCC5)通过扩展4-集矩阵得到12-集矩阵, 并对带单洞区域与两个简单区域间的拓扑关系进行表示. 给出了实现算法, 得到了带单洞区域与两个简单区域间的161种拓扑关系及其拓扑关系示意图, 并验证了161种拓扑关系均可实现. 证明了12-集模型中基本关系的完备性和互斥性, 并给出了161种拓扑关系的概念邻域图.     

一类带有互相包含洞的区域与简单区域间拓扑关系的表示

基于带洞区域间的拓扑关系建立适合表示该类拓扑关系的12-交集矩阵, 通过给出的相应约束条件得到一类带有互相包含洞的区域与简单区域间的53种拓扑关系, 并通过53种拓扑关系图验证了53种拓扑关系均是可实现的, 最后证明了12-交集模型中基本关系的完备性和互斥性.     

一个带单洞区域和一个简单区域间的拓扑关系表示

基于扩展4 交集矩阵提出一个8-交集模型, 解决了一个带单洞区域和一个简单区域间拓扑关系的表示问题, 得到一个带单洞区域和一个简单区域间的17种拓扑关系图, 并证明了所提出的8 交集模型比扩展4-交集模型表达能力更强及8-交集模型中基本关系的完备性和互斥性.     

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