基于DCOM的科技统计管理信息系统的设计与实现

科技统计工作是科技管理的重要组成部分，文章通过分析科技统计工作的需求，开发了基于DCOM技术的科技统计管理信息系统，并阐述了该系统的设计原则、总体框架和实现技术等。     

科技统计工作存在的问题及对策

科技统计是各级科技管理部门实行科学决策、加强宏观管理的基础性工作。科技统计相关指标数据的分析．是政策上宏观调控的依据。要做好统计工作,发挥管理作用,在领导足够重视、部门间加强配合的前提下．不仅要有高素质的管理人员,还必须充分利用先进的信息化技术和科学管理手段,保证科技统计数据的真实、准确。探讨了科技统计工作中存在的问题,并对如何加强科技统计工作也提出了相关建议。     

省科技厅部署2015年科技统计及创新调查工作

<正>本刊讯近日,全省科技统计与分析工作会议召开。会议对2014年全省科技统计工作的主要成效和经验进行了梳理总结,对2014年工作业绩突出的科技统计先进集体及先进个人进行了表彰,对做好2015年基础性统计调查分析、开展创新调查、完善科技统计数据资源、深化科技统计分析研究等工作做了部署。会上,省科技情报研究所专业技术人员重点介绍了国家建立创新调查制度情况,对科学研究与技术服务业科技活动单位统计、国家科技计划     

加强高校科技统计工作，提高科研管理水平

高校科技统计是科技统计工作的重要口径之一。高校科技统计工作是科研管理工作的基础,也是高校科技管理工作的主要组成部分;提高科研管理水平,也是科技统计工作顺利实施的有力保障。本文阐述科技统计与科研管理的关系,提出了提高科技统计水平的几条途径。     

提高普通高校科技统计质量的对策研究

探讨了高校科技统计的作用和意义,对科技统计的工作现状进行了归纳对比,研究了高校科技统计的学科特点,对提高普通高校科技统计质量提出了针对性建议。     

对安徽省科技统计工作的思考

科技统计是为国家、地区政府制定科技政策、科技发展规划决策提供基础性数据的工作,是检查和监督科学技术计划执行情况的有效依据,因此,科技统计工作质量的高低将直接影响科技管理的水平及科技计划、规划运行的效果。安徽省科技统计工作曾为科技决策提供了良好的支撑作用,在新形势下,为响应省委、省政府建设“合芜蚌自主创新综合配套改革试验区”的精神,科技统计工作仍需拓展新的领域。     

对科技统计工作的几点认识

由于科技统计工作者多年来扎扎实实地工作，才有了丰富的科技统计数据积累．以及在此基础之上的统计分析，从而也才能有科技发展的正确决策。因此，正确看待统计和统计工作，加强统计分析，深入挖掘统计数据的价值，正确看待新形势下科技统计工作面临的挑战，应成为各级科技管理部门和科技统计工作者的共识。     

动态

省科委召开1997年度 科技统计工作会议 11月26日至27日,1997年度全省科技统计工作会议在肥召开。各行署、市科委,中科院合肥分院,省农科院,省科技研究院以及各有关科研院所、高等院校从事科技统计工作的100余名代表参加了会议。会议传达了国家科技统计工作会议、省统计工作会议精神,回顾总结了1997年度省科委的科技统计工作,安排布置了1998年度任务。     

高校科技数据统计的新思考

分析了高校科技统计的现状,在论述了高校科技统计工作的重要性的基础上,对高校在科技统计中存在的某些问题提出改进方法及几点建议,以保证科技统计的真实性、时效性和完整性。     

高校科技统计工作存在的问题及对策

高校科技统计是科研活动的重要组成部分,是做好科研管理工作的基础,是宏观管理和决策的依据.高校科技统计在我国开展时间较短,在统计数据采集、分类标准以及统计人员队伍等方面都存在一些问题,就科技统计工作的问题进行了简要的分析,并提出了做好高校科技统计工作的几点建议.     

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.     

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.     

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).     

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.