爱德华兹的图书馆学思想与活动研究

阐述了爱德华兹在推动英国图书馆法产生、建立曼彻斯特市图书馆等一生当中的主要图书馆活动,进而分析了爱德华兹的在创办公共图书馆、图书馆管理、图书馆史学等方面的思想成就和学术成果。     

追风人物

爱德华兹集豪华与廉价于一身当美国民主党候选人克里宣布,五十岁的参议员约翰·爱德华兹成为他的竞选伙伴和副总统候选人之时,美国股票市场正处在风声鹤唳中。爱德华兹是以代表小人物在法庭上挑战大公司而闻名。他的竞选,令华尔街感到一丝寒意来临。爱德华兹浑身充满矛盾:他是代表美国劳工阶层的百万富翁;他头发梳理得考究花费昂贵,可手腕上却是廉价电子表,且足登旧皮鞋;他拥有四幢楼房,有佣人打理杂事,可每年的结婚周年纪念日却在廉价快餐店与妻子度过。也许这正是与豪门出身的布什相比优势所在。爱德华兹出生于美国南部北卡罗莱纳州一个普…     

关于采油厂年轻专业技术人才队伍建设的探索和思考

本文从阐述年轻专业技术人才的重要性入手，介绍了采油厂年轻专业技术人才队伍基本情况，总结了抓好年轻专业技术人才队伍建设的好经验、好做法，分析了目前存在的问题，并提出了相应的建议和对策。     

现代教育技术发展的现状及前景

着重讨论了国内现代教育技术发展的现状，取得的重要成果和存在的问题，并分析了现代教育技术发展的前景，以教育的信息带动教育现代化，实现基础教育跨越式发展，以现代信息技术推动现代教育媒体技术的发展，创造更好的教学环境，现代远程教育作为扩大规模，推广终身教育的重要办学形式将得到迅速发展。     

自由泳转身技术分析

本文采用文献资料法,对自由泳中的转身技术进行分析,分别对自由泳的转身技术分阶段技术特点进行分析,并指出容易出现的错误,出现错误的原因以及纠正的方法,并把自由泳的转身阶段分为游进池壁、转身、蹬壁、滑行、出水等五个阶段,细化分析自由泳转身每个技术阶段的特点以及训练时应该注意的事项。旨在为自由泳运动员的转身训练水平和竞技水平的提高提供一些理论参考依据,只有掌握好正确的自由泳转身才能在比赛过程中利用转身技术节省体力和时间,以创造佳绩。     

漫长而艰辛的“试管婴儿”之路——2010年度诺贝尔生理学或医学奖成果简介

 “试管婴儿之父”罗伯特·爱德华兹（Robert G. Edwards）获得2010年度诺贝尔生理学或医学奖,以表彰他在体外受精（IVF）技术方面的杰出贡献。早在20世纪50年代,爱德华兹便提出通过体外受精治疗人类不育的设想：即从女性卵巢内取出卵子,与精子在细胞培养皿中完成受精,然后再移植回母体子宫内发育。他们经过漫长而艰辛的努力实现了这一目标,1978年世界第一例“试管婴儿”出生。这项技术给全世界大约10%的不育症夫妇带来希望。一门新的医学领域（辅助生殖技术）由此诞生,开启现代医学的新世界。     

新形势下发展和改革高等职业技术教育的几点思考

分析了河南省高等职业技术教育的大好形势，论述了深化改革，推动高等职业技术教育发展应注意处理好的几个关系。     

虚拟现实技术在中等职校电子教学中的应用

虚拟现实技术是由计算机生成的交互式人工世界，创造了一种身临其境的完全真实的感受，是运用计算机对现实世界进行全面仿效。它能创建与实验设备类似功能，具有投资少、教学效果好的特点，从而较为理想地解决中等职校电子专业教与学、学与练的困扰。并建立了“学习、虚拟、训练”合一新的教学模式。     

北京地区高校技术转移状况分析

高校是最重要的技术源泉之一，它承担着培养人才、知识生产和技术创造三重任务。在技术转移中扮演着极其重要的角色。北京作为全国技术市场最发达的地区和高校最密集的地区之一。研究探讨北京地区高校在技术转移中的作用，很有意义。     

应用DSP技术设计信号发生器的研究

本对数字信号处理器进行了简单介绍，从结构和原理上对应用DSP技术设计信号发生器进行了初步探讨，并将其与用模拟电路实现信号发生器进行了分析对比，为DSP技术的发展应用创造了条件。     

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.