世界遗产地——苏州的古城保护与城市旅游开发

历史经验表明恰当的城市旅游开发是时古城建设性的保护，符合生态城市的旅游建设是时历史古城的最好保护。因此，基于生态景观学的生态城市旅游开发模式是时苏州古城进行城市保护和城市旅游开发的较合适的模式。     

基于生态伦理的森林旅游产品开发模式

概述了生态伦理以及生态补偿、绿色营销的涵义，分析绿色营销与森林旅游之间的内在联系，并以绿色营销理论为指导，从森林旅游产品的可持续发展目标、开发技术和开发重点等三个层面上，探讨既与自然生态环境保护目标相一致又与旅游市场需求相适应的森林旅游产品开发途径，提出“生态、创新、主题、本土、休闲、体验”六环节开发模式。     

试论生态文明的旅游观

分析了现代旅游成就背后掩盖的资源环境和社会问题，潜在的危机，以及这些危机产生的根源，指出建立生态文明观是使现代旅游摆脱困境，实现持续发展目标的根本保证。最后，在生态文明的框架下，陈述了有关旅游性质，旅游开发，旅游消费的新的认识。     

海螺沟地质公园低碳旅游开发模式探讨

在全球性气候变暖的背景下,冰川消融已成为人类面临的重大环境问题。海螺沟冰川是我国典型的季风海洋性冰川,也是世界范围内最完整的山岳冰川,具有高度的观赏性和科研性。据观察,近百年来该冰川表现出持续消融的状态,保护已迫在眉睫。从规模、结构及分布3个方面论述了海螺沟冰川的地质特征,并探讨了冰川的形成和物质平衡的条件。根据温度、海拔以及表面覆盖物质成份3项对冰川消融起主要作用的因子,针对海螺沟冰川消融的严峻现状和冰川地质遗迹开发和保护具体情况,提出低碳旅游产品开发方案与保护建议。     

甘肃民族地区旅游资源开发保障体系探微

对甘肃民族地区旅游资源的开发，因该地区的生态和文化特点，必须慎而又慎。本文立足甘肃民族地区旅游资源开发的现状和存在的一些问题，提出了对加强该地区旅游资源进一步开发的各种内外部保障体系建设要点，进而有针对性的探讨了具体的实现手段。     

莫莫格国家级自然保护区旅游资源的保护与开发

从莫莫格国家级自然保护区湿地资源状况的分析入手,探讨了保护区自然资源和生态环境保护与旅游开发之间的关系,并将这种辩证关系应用于莫莫格国家级自然保护区的旅游开发中.针对莫莫格自然保护区自然资源与生态环境保护和旅游开发中面临的主要问题,提出了具体的保护性措施和旅游开发的主要建设内容.     

嘉陵江干流沿岸旅游资源综合开发研究

嘉陵江是长江的重要支流，嘉陵江流域是长江上游的重要生态屏障，干流沿岸旅游资源丰富，但旅游业发展相对落后，综合齐发该区域旅游资源，对于流域产业结构调整和区域经济发展具有重要意义．本文分析了嘉陵江干流沿岸旅游资源特点和优势，以及该区域旅游资源开发中的主要问题，提出了该区域旅游资源开发策略．     

珠海市荷包岛旅游开发研究

荷包岛是珠海市旅游资源丰富的海岛之一,对其进行旅游开发,有利于促进珠海市海岛旅游的发展,提升珠海市的旅游竞争力．文章分析了荷包岛旅游资源特征及其开发现状,提出“以市场为导向,发掘深层次生态文化内涵,把荷包岛建成旅游生态岛”的旅游开发基本思路,并把荷包岛的旅游开发原则确定为整体性、美感性、人性化、生态环境保护4大原则,最后从旅游景观、游憩活动和旅游设施3方面对荷包岛旅游景区系统的建构进行了研究．     

万盛风景风旅游环境容量研究

以万盛景区为研究区域，从风景区的旅游承受能力出发，对旅游环境容量，旅游生态容量，旅游空间容量和旅游生活环境容量进行了定量的分析，指出了存在的问题，提出了加快开发万盛区旅游资源的步伐，改善旅游区的生活环境，使旅游合理环境容量与实际旅游容量达到基平衡的对策。     

长泰县生态旅游资源特色和开发条件分析

通过分析长泰县旅游及其形成机制，指出生态旅游资源是长泰旅游资源的特色，特别是水域生态、森林生态、观光农业生态尤为突出。文章认为紧邻覆漳泉是开发长泰生态旅游的区位条件，领导重视是保证条件，人文景观多样是依托条件。最后提出了合理开发长泰生态旅游资源的具体措施。     

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)

正~~     

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).     

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.     

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.