浙江省入境旅游流、旅游景区、星级酒店空间错位演化分析

运用重力模型和空间错位指数模型分别从宏观和微观两个方面对浙江省及11个地级市近10 a来的入境旅游流、旅游景区、星级酒店的空间错位进行分析.研究表明：近10 a来,从宏观上看：1)浙江省入境旅游流,旅游景区、星级酒店的重心均集中在绍兴市;2)三者之间的空间错位指数均不高于0.4,空间错位程度不明显,其中星级酒店－入境旅游流的空间匹配性最好,旅游景区－入境旅游流匹配性最弱;3)2007年是旅游景区与入境旅游流的空间错位指数转折点,2007年之后其匹配程度逐渐趋良好.从微观上看：1)整体而言,湖州的入境旅游流、旅游景区、星级酒店空间匹配性最好,而杭州最弱;2)2007年是部分地市在旅游景区－星级酒店和旅游景区－入境旅游流匹配度上的转折点,2007年之后这些地市的数值整体呈现下降的趋势,匹配逐渐趋于良好.     

中国入境旅游流的空间分析

以入境旅游流（客流）为研究对象，以中国１２个旅游热点城市（京、沪、苏、杭、宁、西、穗、深、厦、桂、昆、蓉）为实证，凭借大量的市场调查和国家旅游局有关资料，利用地理空间分析方法，研究了来华入境旅游流、入境后旅游流的空间动态规律。     

广州入境旅游流地理分布与网络特征

基于问卷调查数据,运用地图分析和社会网络分析方法,对入境旅游口岸城市——广州的入境旅游流的地理分布和扩散规律进行了研究.结果表明:(1)广州入境旅游流以商务游客为主体,一站式游客和选址同一口岸出入境游客比例较高.(2)广州入境旅游流的分布范围较小,总体上呈现东多西少、南密北疏的特点,集中分布在泛珠三角和长三角等经济发达地区.(3)广州入境旅游流扩散能力较弱,旅游流空间扩散强度在目的地城市间分布不均衡,集中扩散趋势明显,向丰性和趋高性是其空间扩散的主要特点.(4)广州入境旅游流网络为典型的核心边缘网络,整体结构简单且集中化趋势明显,核心区包括广州、桂林和北京等15个城市,核心城市对边缘城市的辐射效应弱.     

旅游流规模结构的Zipf特征与差异度对比研究——以四川省为例

以1996年至2004年入境旅游统计数据为样本,借用齐夫(Zipf)参数和差异度、均衡度指标,对四川省入境旅游流规模结构的齐夫(Zipf)特征和差异度进行了对比研究.结果发现齐夫(Zipf)参数可对旅游流规模结构进行分段处理,并以此分析各标度区内旅游流规模结构的空间分布形态;对不满足Zipf法则的无效标度区内部结构只能借助差异度和均衡度指标予以完成,但由于该指标既不能很好说明旅游流规模结构的标度分段特征,又无法反映旅游流结构的空间分布形态,故只能在分析旅游流规模结构时对齐夫(Zipf)参数起补充作用;用Zipf参数和差异度、均衡度指标定量研究旅游流规模结构所得到的结果与客观实际相符合,从而证明了Zipf定律、差异度、均衡度指标均可作为旅游流规模结构分析的有效手段或工具,这对丰富旅游流的分析方法具有重要意义.     

新疆旅游资源与入境旅游质量的空间错位研究

以新疆14个地州市为研究对象,运用重力模型和二维矩阵模型,选取旅游资源丰度指数和入境旅游流流质指数作为空间错位评价指标,定量分析了新疆旅游资源与入境旅游质量之间存在的空间错位关系,结果表明:①新疆旅游资源与入境旅游流质量之间存在空间错位,两个重心错位2.13个经度,1.09个纬度。②新疆旅游资源与入境旅游流质量未发生明显空间错位的地州市成块状分布;发生明显空间错位的区域位于东部和南部;未发生空间错位的分布在中部。③空间错位可分成五种类型,其中双高区数量最少,正逆向区数量最多,双低区和正逆向区数量相当,缺少中等区。     

新疆入境旅游流时空特征与演变研究

以2001-2015年新疆15个地、州、市的入境旅游流相关数据为基础,采用标准差、变异系数、绝对集中指数、首位度和GIS空间分析等方法,进行入境旅游流流量与流质的时空动态演化及空间一致性分析.研究结果表明:新疆入境旅游流流质和流量整体上表现为上升的趋势,演化特征以2007年为分界点分为两个阶段;在入境旅游流流量方面,新疆各地、州、市的绝对差异越来越大;在入境旅游流流质方面,仅乌鲁木齐市始终为优质旅游流,其他各地、州、市均存在波动现象,但总体处于上升趋势.整体来看,新疆各地、州、市入境旅游流流量和流质的空间一致性结构正在向良性方向发展,但入境旅游发展的类型和结构仍需进一步优化与完善.     

北京入境旅游流外向扩散的数量化分析

在分析旅游流研究现状的基础上,以2005～2009年《中国旅游统计年鉴》、《入境游客抽样调查资料》为主要数据来源,以北京入境旅游流外向扩散为研究对象,选取北京入境旅游流外向扩散的20个典型旅游省市,借助SPSS、Excel等统计软件,从流量变化、流入指数等方面对北京入境旅游流外向扩散进行数量化分析.结果表明,北京入境旅游流主要流向上海、陕西、广东、辽宁、天津和山东等经济发达或具有垄断性旅游资源的省市,北京入境旅游流外向扩散具有很强的资源导向性、经济导向性、距离导向性和交通导向性等特征.     

北京入境旅游流外向扩散的数量化分析

在分析旅游流研究现状的基础上,以2005~2009年《中国旅游统计年鉴》、《入境游客抽样调查资料》为主要数据来源,以北京入境旅游流外向扩散为研究对象,选取北京入境旅游流外向扩散的20个典型旅游省市,借助SPSS、Excel等统计软件,从流量变化、流入指数等方面对北京入境旅游流外向扩散进行数量化分析.结果表明,北京入境旅游流主要流向上海、陕西、广东、辽宁、天津和山东等经济发达或具有垄断性旅游资源的省市,北京入境旅游流外向扩散具有很强的资源导向性、经济导向性、距离导向性和交通导向性等特征.     

云南省A级旅游景区与入境旅游质量的空间错位研究

入境旅游能够反映地区旅游业发展状况。根据空间错位理论,以云南省16个地市州为研究单元,借助重力模型及二维矩阵分析方法,探究了云南省A级旅游景区与入境旅游质量之间的空间错位问题。结果表明：(1)云南省A级旅游景区与入境旅游质量之间存在空间错位,二者重心错位0.11个经度,0.31个纬度。(2)云南省68.5%的地市州发生明显空间错位,集中连片分布呈东西向条带状贯穿整个省区,25%未发生明显错位的地市州呈团块状集中在云南省南部,东北部的昭通市未发生空间错位。(3)按照A级旅游景区丰度指数与入境旅游流流质指数组合划分的五种具体错位类型中,西双版纳州、红河州为双高区,普洱市、玉溪市、昭通市为双低区,昆明市、丽江市、大理州、迪庆州、保山市、楚雄州为顺向错位,怒江州、德宏州、临沧市、曲靖市、文山州为逆向错位;无中等错位州市。基于此,提出相应对策建议,为提升云南省入境旅游发展质量、促进云南省旅游业协调发展提供参考。     

基于分形理论的河南省入境旅游流等级结构分析

以河南省18个地级市为研究对象,运用分形理论,测算河南省2000-2008年入境旅游流等级规模的zipf维数和huasdorff维数.结果表明,入境旅游流规模的等级分布具有极核群式结构特征;游客主要集中在旅游资源丰富、旅游基础设施优越的郑州、开封、洛阳等城市;入境旅游流规模的分形出现中间层次的弱缺,存在旅游流规模等级结构的断层;入境旅游流差异有逐渐减小的趋势.最后分析认为旅游资源禀赋、基础设施、旅游市场营销、城市职能定位等是影响河南省入境旅游流规模分布的主要因素.     

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…     

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。     

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     

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     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.