模糊优化法理论在获取最大利润上的应用

章通过对模糊优化理论的研究，提出并建立了基于模糊优化法理论生产设备排序设计的数学模型，同时通过实验验证了其理论的可行性。     

水电站群装机容量分配的多目标模糊优化方法

多目标模糊优化方法能够反映各个单目标最优解与多目标满意解之间的相互关系，能较好地同时考虑多种影响因素。本文针对水电站群装机容量分配的多目标性，利用模糊优化理论，探讨提出了水电站群装机容量分配的多目标模糊优化方法，并通过算例验证了方法的可行性。     

基于模糊规划的处理时间不确定条件下的Job shop问题

研究了处理时间不确定条件下的Job shop生产调度问题,建立了基于模糊规划理论的不确定Job shop调度模型。在采用两种模糊运算的基础上,结合模糊优化和遗传算法给出了一个解决非线性模糊优化问题的可行算法,通过仿真数据说明了所建模型及算法的有效性,并就结果进行了讨论。     

基于灵敏度分析的大规格床身结构模糊优化设计方法

提出了采用模糊数学理论和有限元法相结合建立具有静、动态模糊约束的大规格数控车床床身结构优化数学模型新方法.该方法将模糊逻辑推理理论运用于床身结构灵敏度分析中,构建了灵敏度模糊集.实现了最佳模糊设计变量的选取,并应用一种改进的最优向量水平截集法评估模糊约束的重要性,避免了最优解的丢失.优化结果表明,采用所提模糊有限元优化...     

改进遗传算法的行星齿轮传动多目标模糊物元可靠性优化

运用模糊可靠性优化理论和物元分析法，建立多目标模糊可靠性优化数学模型．并在标准遗传算法的基础上，通过改进遗传算子，引入菱形思维和模拟退火算法，得到了具有实值编码技术的改进型自适应遗传算法．实现了具有混合设计变量的行星齿轮传动参数优化．     

含弹性约束的模糊线性规划求解

针对模糊线性规划模型清晰化处理,利用结构元理论,构建并讨论一类含弹性约束条件的新型模糊线性规划,通过引入模糊数的加权特征数,定义了一种序关系并应用Verdegay的模糊线性规划方法,将模糊线性规划转化成一类含参数约束条件的清晰线性规划模型.结果表明:此类线性规划模型最优可行解是可求的,通过此方法可以达到求解过程中优化模型及简化模型的目的.     

模糊信息的复合型处理机制

通过水平截集将模糊信息局部清晰化是生产线优化调度等实际领域中常用的方法。该文针对模糊信息之间的差异度量问题,在分析了现有度量方法不足的基础上,引入了一种描述水平可靠程度的参数——水平可靠性函数,并从模糊数的水平截集和隶属函数出发,给出了几种水平可靠性函数;进而通过可靠统计量建立了一种带有可靠程度的衡量模糊数之间差异的度量机制,并结合实例给出了建立这种度量机制的方法和步骤。分析结果表明这种度量机制是现有模糊度量的完善,并将为模糊信息处理的决策和优化提供理论基础。     

基于Hopfield网络的模糊神经网络优化方法

针对训练模糊神经网络时收敛时间慢,难以实时实现的缺点,将Ｈｏｐｆｉｅｌｄ网络引入模糊神经网络权值的优化问题中,从而融合了Ｈｏｐｆｉｅｌｄ网络可进行实时优化和模糊神经网络可引入专家知识化权值的优点。理论分析和模拟实验表明,这种网络可以在电路时间常数数量级内给出优化后的模糊神经网络权值,并且具有Ｌｙａｐｕｎｏｖ意义下的稳定性,为模糊神经网络权值的实时优化提供了一条新途径。     

基于模糊回归理论的GM(1,1)模型优化

文章将传统的GM(1,1)模型与模糊回归模型相结合,得到了基于模糊回归理论的GM(1,1)优化模型,保留了传统GM(1,1)模型的所需建模数据少和具有预测功能的优点;利用定义的三角模糊数的左、中、右距离公式,得到了基于模糊回归理论的GM(1,1)优化模型的求解方法.     

基于结构元理论的模糊非线性规划求解方法

针对目标函数与约束函数含有多个模糊数参数的非线性规划问题,应用模糊结构元理论优化求解.利用结构元理论研究模糊值函数问题,得到了多参数函数转换成单参数函数的方法,将多模糊数参数非线性规划问题化简为仅含有一个模糊数参数(即结构元)的非线性规划问题.通过结构元方法构造的自然序,将该规划问题转换成经典的非线性规划问题,并且二者同解.实例分析验证了方法的有效性.     

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.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

正~~     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with