浅析小城镇生态建设

在总结、分析目前我国小城镇建设现状与存在问题的基础上,结合小城镇可持续发展的原理、生态学原理、区域整体化与城乡协调发展理论,研究和探索在我国进行生态小城镇建设的理论体系和原则方法,旨在为新时期我国生态小城镇建设的方法和途径进行理论创新和实践探索,为小城镇生态经济的协调发展提供理论依据,为评价生态小城镇生态化程度及可持续发展的能力提供科学的评价方法和体系。     

交通流理论发展分析

交通流理论是一门发展中的学科,对传统交通流理论研究内容作了归纳总结,认为其模型的限制条件比较苛刻,因而影响了实际应用效果。随着现代科学技术方法的日趋完善,新的研究方法逐渐被应用于现代交通流理论中,其在应用中更重视模型和方法对真实交通流的拟合效果。通过全面的分析和综述,最后预测了交通流理论的发展方向,认为应该以系统科学的新方法去推动交通流理论的新发展。     

基于熵权物元可拓模型的喀斯特山区土地整理可持续发展评价研究

为了探索建立喀斯特山区土地整理可持续性评价方法,在物元分析的基础上,选取5类21个针对当地社会自然环境的可持续发展指标,运用可拓学方法,关联函数理论和信息熵,建立了土地可持续利用综合评价的物元可拓模型。研究表明：镇宁县土地整理项目可持续发展为较好级。引入物元可拓方法在喀斯特山区土地利用可持续发展评价中切实可行,结果可靠...     

基于粗糙-FAHP方法的石油企业可持续发展能力评价

对提高石油企业可持续发展能力评价的可操作性和科学性进行了探索.结合石油企业的特点,给出了其可持续发展能力评价指标体系.利用粗集理论的属性约简方法,精练了该评价指标体系,并针对各指标对石油企业进行了比较,构造了三角模糊数互补判断矩阵.利用三角模糊数互补判断矩阵最小二乘排序模型,对石油企业可持续发展能力进行了综合评价.应用实例结果验证了该模型的有效性.     

基于粗糙-FAHP方法的石油企业可持续发展能力评价

对提高石油企业可持续发展能力评价的可操作性和科学性进行了探索。结合石油企业的特点，给出了其可持续发展能力评价指标体系。利用粗集理论的属性约简方法，精练了该评价指标体系，并针对各指标对石油企业进行了比较，构造了三角模糊数互补判断矩阵。利用三角模糊数互补判断矩阵最小二乘排序模型，对石油企业可持续发展能力进行了综合评价。应用实例结果验证了该模型的有效性。     

可持续发展战略指导下的轨道交通规划与评价

提出了轨道交通规划与评价在实施可持续发展战略过程中需要研究的问题，研究重点是轨道交通规划与评价方法体系和环境对策，研究了轨道交通规划目标的变化、轨道交通规划优化决策理论与方法、轨道交通规划中的环境影响评价、城市轨道交通网络的合理规划、城际轨道交通——客运专线/高速铁路线路基本走向的规划、轨道交通规划可持续发展的评价指标体系概念框架、轨道交通系统可持续发展的能力建设问题等，并通过实例验证了所建立的理论方法体系和模型体系；不仅进行了有关理论和方法的探讨，而且以面向实际应用为目标，开发了相应的软件系统，为轨道交     

区域生态环境评价研究综述

良好的生态环境是人类生存和发展的基本条件,科学准确地对生态环境进行评价是保护环境、促进人类可持续发展的前提.通过总结和梳理当前国内外生态环境评价的研究进展,介绍了遥感在生态环境评价应用方面的发展趋势,比较了当前评价指标体系的构建方法,包括层次分析法、主成分分析法等.分析了不同评价方法模型的优缺点,如指数评价法、模糊判别法等.指出要把握生态环境特点,全面认识本质和各要素之间的内在联系,从而选择合适的评价方法和模型.最后总结分析了目前生态环境评价研究中的主要问题及未来的发展方向.     

区域水资源可持续利用评价理论模型与方法

文章在论述区域水资源可持续利用与水资源承载能力关系的前提下,提出了区域水资源可持续利用评价的模糊模式识别理论、模型和方法。应用所建立的模型对汉中盆地水资源可持续利用的程度进行了评价,应用实例表明,理论模型严谨,方法简洁,评价结果合理可行。此方法也可用于区域社会经济可持续发展等的评价。     

水资源可持续研究回顾与评价

本文通过回顾“可持续发展”研究的历程,总结了“可持续发展”从提出到为世界普遍接受的演变过程,归纳了可持续发展的不同内涵与研究的基础,介绍了水资源可持续评价的指标体系与各种模型的建立。对国内外水资源可持续理论研究与实践进行评价,并对今后的研究提出可行性建议。     

基于遗传规划的储层含水饱和度预测方法

研究了基于常规测井信息进行储集层含水饱和度参数的评价和预测问题,提出一种基于遗传规划算法建立由测井信息预测含水饱和度参数模型的新方法.通过与支持向量机、模糊神经网络等建模技术的模拟对比和在长庆油气田的应用实例,展示了该方法的高效性,为各种储层参数的测井评价和预测探索了一条新的途径.     

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.     

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。     

A computer generator for randomly layered structures

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

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.     

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.     

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。     

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

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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