安徽省城镇化水平与质量耦合协调的时空演变特征

以安徽省为研究区域,从人口发展、经济发展、社会发展、生态环境、城乡统筹发展及开放程度等6个维度构建城镇化质量评价指标体系,在定量测算安徽省16个地级市2005年、2010年、2014年的城镇化质量的基础上,借助协调度模型对安徽省各地级市城镇化水平与质量的协调状况进行实证分析.研究表明:2005—2014年安徽省城镇化质量呈小幅度上升趋势,增长幅度为16.79%,经济发展、社会发展对城镇化质量的拉动作用较大;各地级市城镇化水平与质量协调度处于上升态势,由低度失调向多层次协调发展转变,但协调度的整体水平较低,截至2014年仍然有一半的城市处于弱度协调状态;各地级市城镇化水平与质量协调度空间差异显著,具有聚集特征,呈现"两高两低"空间分布格局.研究结果表明今后应将提高人口质量、改善生态环境、缩小城乡发展差距、提高开放程度等作为促进安徽省城镇化水平与质量协调发展的重要途径.     

西部大开发10a甘肃县域经济空间格局演变分析

通过ESDA技术和地统计分析功能函数——变差函数相组合的方法,定义了合适的距离权重矩阵,研究西部大开发10a甘肃县域经济及其增长差异的时空格局演变特征.结果表明:总体空间格局上,甘肃县域经济发展水平呈现较弱的空间正相关性,经济发展热点区域的总体格局保持了一定的连续性.经济增长的空间自相关不是十分明显,结构上更多地表现为随机性和不稳定性,增长热点区在空间格局上有一定的跃迁现象.10a来经济发展表现出越来越强的自组织性,空间格局上由空间自相关引起的结构化分异比较显著.总体来看,经济发展的空间差异以2007年为界先增大后减小,分方向上,西北—东南方向差异性最大,而南—北和东—西这两个方向上经济发展的均质性相对较好.     

徐州都市圈县域工业发展时空分异

采用空间自相关分析法,以县域为研究单元,对2000~2012年徐州都市圈工业发展时空格局特征进行了分析.结果表明:徐州都市圈县域工业发展的相对差异呈波动性缩小之势,而各县域之间呈现正空间相关性且集聚态势有加强趋势,但空间集聚程度不高;该都市圈县域工业集聚程度呈以徐州市区为核心向外围降低的圈层分布格局,且近年来沿东陇海线向沿海延展的轴线发展格局初现,而南部、西部地区的工业边缘化现象明显.根据相邻县域间的关系,将徐州都市圈各县域分为扩散发展型、极化发展型、过渡发展型和落后均衡型.     

江苏省县域老龄化空间格局及影响因素分析

以江苏省县域为研究对象,选取2000年、2010年两次人口普查数据,计算出老龄化系数(65岁及以上的老年人口数占总人口的百分比)来表征老龄化的情况,利用探索性数据分析法,研究江苏省老龄化的空间格局及其演变,并利用空间误差模型对影响因素进行解释.结果表明:在总体空间格局上,江苏省县域老龄化呈现显著的空间自相关,即老龄化系数相似的地区呈集聚分布,2000年-2010年空间集聚性有所减弱,空间异质性增强,但是集聚的空间格局并没发生太大的改变;冷热点发生了一定的迁移,2010年在苏南地区出现了冷点区域分支,这与经济热点的迁移有关;集聚格局由"南高北低"向"中间高两边低"转变;通过对影响因素的分析,人口社会基本发展因素以及出生率与老龄化呈现负相关,死亡率、受教育程度以及医疗卫生水平对老龄化起正向的积极作用,而经济发展水平对老龄化的影响在两次人口普查中有所差异.     

1990—2013年西安市新城市贫困人口格局演变

通过问卷调查法、访谈法、数理统计分析法和GIS空间分析方法对1990—2013年间西安市新城市贫困人口格局演变进行了研究。结果表明:西安市新城市贫困人口总体数量呈现上升态势,绝对差异和相对差异均呈现上升趋势;西安市新城市贫困人口空间分布总体呈现空间异质性特征,新城市贫困人口空间格局由"整体破碎+局部集聚"向"圈层放射+局部嵌套"变化;西安市新城市贫困人口中心表现出向西南连续迁移的发展趋势,总体上呈现东北—西南向的空间分布格局;西安市新城市贫困人口格局演变是城市社会空间结构的继承、住房分配制度和住房改革、城市规划导向等共同作用的结果。     

珠江三角洲城市群生态安全空间分异与聚集特征

珠江三角洲城市群是粤港澳大湾区的重要组成部分,在国家实施粤港澳大湾区建设的重大政策背景下,研究珠江三角洲城市群生态安全及其空间格局,具有重要意义。基于PSR概念模型构建珠江三角洲城市群生态安全评价体系,采用集对分析和空间自相关分析方法,探究城市群生态安全空间异质性及聚集特征。结果表明:珠江三角洲城市群受城市化的影响,生态安全水平呈现出较显著的空间差异,其空间分布特征为中部城市化水平较高的区域生态安全水平显著低于外围区域,外围区域对于中心区域形成一个生态屏障;生态安全水平与区域经济发展有显著关系,生态安全水平与经济发展水平在空间上呈现负相关状态;生态安全在城市间呈现"低—高"或"高—低"集聚态势,生态安全较高的城市趋于和生态安全较低的城市相邻,呈现互补空间格局。这一空间分异和聚集特征对于珠江三角洲城市群以及大湾区的未来生态规划、城市生态建设和生态管理具有较重要的指导意义。     

安徽省A级旅游景区空间结构及空间自相关效应

以安徽省546处A级及以上旅游景区为研究样本,运用W函数、经验贝叶斯修正的空间自相关及空间冷热点分析,定量化地分析A级及以上旅游景区的空间结构、空间自相关效应,揭示其空间分布特征,探究其冷热点分布,并结合主成分分析法和地理加权法,探究旅游密度分布的影响因素。研究结果显示:①安徽省3A级及以上旅游景区在空间上呈现均匀分布状态,而3A以下景区空间上表现为聚集状态,市域间差异较大;②安徽省A级及以上旅游景区旅游密度呈正的空间自相关性,旅游密度总体上表现为南热北冷的分布特点,与安徽省旅游资源南多北少实情一致;③旅游地区资源禀赋、区域经济发展水平以及交通等因素影响着旅游密度的空间分布,市域间旅游密度存在差异。     

皖江示范区建设以来安徽省经济空间格局演变态势

以GIS的空间统计工具为技术手段,以安徽省2009~2016统计年鉴为数据来源,分析安徽省县域经济发展空间格局演变。结果显示:安徽省各县经济发展水平呈现出显著的空间自相关且集聚程度逐渐增强,经济热点区位于皖江示范区范围内,主要分布在合肥市和沿江地区,经济热点区县域数量逐年增多,方向上呈现沿长江自东向西扩展,冷点区空间位置基本不变,主要分布在皖西北的阜阳市。安徽省经济增长总体上呈现随机分布,局部集聚不明显,皖中地区增长率略大。最后,从区位、物质积累、政策、市场发育水平、人才五个方面分析了安徽省经济格局的演变原因。     

淮海经济区能源效率及节能潜力的时空分异

采用DEA模型,以地级市为研究单元,对2001~2010年淮海经济区能源效率及节能潜力的时空分异特征进行了分析,研究发现:1)该经济区能源综合效率处于中等偏上水平且呈现波动增长趋势;2)能源效率的区域差异呈现综合效率纯技术效率规模效率的特征,且均显示出先减后增的变化趋势;3)能源综合效率呈现由西北高而东南低的"单向倾斜型"格局演变为以济宁、泰安为中心向外围逐渐下降的"核心-边缘"型格局;纯技术效率高值区分布由以京沪沿线地区与鲁南经济带为骨架的"十"字型格局演变为以京沪沿线地区为主轴的"一"字型格局;规模效率由以鲁南为核心向外围逐渐降低的"核心-边缘"型格局演变为北部和东西两侧高、中部低的倒"U"型格局;4)节能潜力呈现以亳州、徐州、临沂3市为核心向外围逐渐降低的"核心-边缘"型空间格局;5)根据能源效率和节能潜力,将该经济区划分高效率高潜力型、高效率低潜力型、低效率高潜力型、低效率低潜力型4种地域类型.     

流空间视角下中原城市群城市物流网络结构分析

运用熵权法对中原城市群物流业发展水平进行综合评价,结合区位基尼系数、区位熵剖析了物流业发展空间演变特征,运用修正引力模型测度了城市物流联系强度,并进行了城市聚类及物流空间网络结构分析.研究表明,中原城市群物流业整体发展由"中心-外围"向"南北中高,东西部低"空间格局转变,呈现一定的空间邻近性特征,整体空间分布比较分散,集聚态势不显著,城市物流集聚水平差异变动较大.中原城市群城市物流网络呈现明显的功能性层级特征,整体联系强度明显增强,物流联系总量差距较大,空间联系不平衡,由"十"字形向"H"形空间格局演变.     

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.     

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.     

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)

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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