我国农村金融体系现状及改革构想

随着改革开放的深入,建设社会主义新农村的构想已经不再是遥远的愿景。而农村金融体系的发展与完善是社会主义新农村建设的主要内容。然而当前我国的农村金融体系存在着金融业务相对落后,金融机构经营管理不尽合理,农民贷款困难等问题,这些问题阻碍了农村金融体系的健康发展以及其对农村经济发展的适应和支持。因此,尽管我国农村金融体系在过去十年有了长足的发展,其仍需要大力改革及完善。     

农村金融改革与新农村建设

新农村建设需要强大的资金支持。金融业应该在新农村建设中发挥强大的资金支持作用。然而,中国农村金融体系存在的弊端大大制约了其作用的发挥。建立健全完善的农村金融体系已是当务之急。应从开放农村金融市场,健全农业保险制度等方面入手,进行农村金融改革,使金融业能更好地为新农村建设服务。     

浅谈我国农村金融服务现存问题及对策

农村金融服务为促进我国社会主义新农村建设发挥了重要作用,为农村建设提供了重要的资金保障,但现阶段我国农村金融机构在体系设置与提供服务的质量上还有待进一步完善,本文主要对目前我国农村金融服务现存的问题进行了分析,并就如何提高服务水平提出了具体的解决措施。     

农村金融信用担保体系建设的思路及对策研究

建立完善的农村金融信用担保体系是解决我国农村贷款难的有效办法。我国当前农村金融信用担保存在体系不健全、经营运作不规范、征信体系不健全等问题,本文提出构建政策性、合作性、商业性三种可供选择的农村金融信用担保体系,并提出相关对策建议。     

新农村建设中的农村金融体系

我国农村金融基本上形成了以正规金融机构为基础,正规金融机构与民间金融组织分工协作的农村金融体系。但是,在该体系中存在许多缺陷,形成了一个相对低效的农村金融制度安排,使得农村金融对农村经济的促进作用并不明显。农村金融改革的实质,是要建立一个有效配置金融资源的农村金融市场,创造一个商业性金融、政策性金融、合作性金融、民间金融共存共生、协调发展的局面。     

深化金融改革发展农村经济

改革开放以来,我国社会主义现代化建设取得了巨大成就,工业发展迅速,城市建设加快,综合国力提高,人民生活改善.我国是一个有着9亿多农民的大国,农村盘子大、基础弱、问题多,农村建设是个攻坚战,任重道远,不仅需要国家的大力扶持、社会方方面面的相助,尤其需要农村金融体系的完善和资本渠道的畅通,这是农村建设的输血工程,也是一个系统工程.所以,深化农村金融体制改革,完善农村金融服务体系,是巩固农业基础地位、增加农民收入、促进农村经济全面发展的历史性任务.     

农村金融服务滞后与农村金融体系重构问题的研究

建设社会主义新农村离不开金融支持。因此，改善农村金融生态环境，重构农村金融体系就显得格外重要。本文阐释了当前我国农村金融服务滞后的原因，提出重构农村金融体系，为新农村建设提供更有力金融支持的建议。     

基于资源配置的西部农村金融问题探讨——以贵州省黔西南布依族苗族自治州为例

金融资源是现代市场经济中不可缺少的一种稀缺资源,任何经济的发展都离不开有效的资源配置.金融资源在西部农村的配置状况,直接关系到我国西部新农村建设的进展和“三农”问题的解决.我国西部农村金融资源配置存在着资金、组织和市场方面的问题,使得西部农村金融资源配置的效率低下,严重影响了西部农村经济的发展.     

建立农村金融体系风险控制

农村金融市场发育程度的差异决定了金融供给应当是多元化的,相应也决定了农村金融机构的风险控制体系也应是多元化的。在我国金融体制改革中,商业银行逐步按照现代银行经营管理要求建立起了风险控制体系。     

浅谈农村金融生态存在的问题

本文从农村金融生态发展与缺陷的视角构建理论分析框架,旨在为改善农村金融生态提供理论借鉴。改善和优化我国农村金融生态,必须建立健全农村金融组织体系;完善和培育农村金融机构的功能;加强制度建设,优化农村金融生态环境。     

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).     

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.