民营科技企业股权激励模式比较研究

如何选择适当的激励模式已经成为我国企业尤其是民营科技企业最为关注的问题之一.文章在比较和分析各种股权激励模式的特点和利弊的基础上,结合实际案例进行剖析,以期为我国民营科技企业制定合理而有效的股权激励机制提供决策参考.     

北京民营科技企业亟待重振

北京是我国民营科技发祥地,北京民营科技在全国一直处于高智力、高位势、高增长点的发展态势,全国绝大多数省市的民营科技创业创新理论与实践均得益于对北京的借鉴。北京民营科技企业的创业创新之路充分体现了智力密集与人才资源相结合的优势……笔者同一切有识之士一样十分关注北京民营科技企业的发展。最近笔者考察了全国10余个省市民营科技企业发展情况,特别是对民营科技与民营经济发达的“珠三角”和以上海、温州为代表的“长三角”地区作了调研,并对其发展模式与中关村发展模式及政策发展环境作了比较,既感到北京民营科技企业发展具有雄厚的条件和发展潜力,又感到北京民营科技企业存在某些隐忧。     

民营科技企业发展的法律环境研究——基于LLSV理论假说的启示

民营科技企业是推进我国科技、经济发展的重要力量,是高新技术开发的主力军.通过阐述法律环境与民营科技企业之间的作用机理,分析当前我国民营科技企业发展的法律环境问题,援引LLSV理论假说对如何优化我国民营科技企业法律环境提出一些思路.     

民营科技企业发展的结构分析

我国民营科技企业发展的曲折道路，显示出民营科技企业顽强的生命力，为了探究我国民营科技企业发展的内在机制和规律，我们对民营科技企业的发展结构进行分析和研究，以窥视其发展机理。     

1992年以来我国民营科技企业的发展概况与前景展望

进入20世纪90年代之后,民营科技企业对我国科技进步、经济和社会发展的作用日益凸显出来.随着我国改革开放和现代化建设事业的全面推进,我国的民营科技企业已经实现连续十年的高速增长,成为我国推进全面建设小康社会的一支重要力量.本文着重论述自1992年以来这十年我国民营科技企业的创业绩效及其发展的政策选择等方面做一论述,从而加深全社会对民营科技企业的认识,以进一步促进我国民营科技企业的发展.     

民营科技企业的发展探讨

民营科技企业群体是我国改革开放的产物.为适应新的形势发展要求,民营科技企业应在指导思想和具体思路上,积极探索有效的管理方法,积极主动地按建立现代企业制度的要求,加快管理升级,缩小管理差距,提高管理水平.现对闽北民营科技企业的发展战略思路探析如下.     

民营科技企业的发展探讨

民营科技企业群体是我国改革开放的产物.为适应新的形势发展要求,民营科技企业应在指导思想和具体思路上,积极探索有效的管理方法,积极主动地按建立现代企业制度的要求,加快管理升级,缩小管理差距,提高管理水平.现对闽北民营科技企业的发展战略思路探析如下.     

长治市民营科技企业发展途径探讨

介绍了长治市民营科技企业发展的现状,分析了民营科技企业发展的几种模式,提出了长治市民营科技企业发展的总体思路和对策。     

新时期厦门市民营科技企业发展对策研究

改革开放以来,厦门市认真贯彻国家、省、市关于发展民营科技企业的有关方针政策,把发展民营科技企业作为一项重要工作来抓,有力地促进了厦门市民营科技企业的发展.特别是党的"十五大"以来,厦门市民营科技企业呈现出前所未有的好势头,已成为厦门市经济、社会发展的一支重要的生力军.然而,为适应中国即将加入WTO的新形势及新要求,应该进一步研究民营科技企业发展的规律,采取更开放、切实可行的对策,进一步加快厦门市民营科技企业的发展.     

我国民营科技企业成长环境体系研究

为了给我国民营科技企业的发展营造更好的发展环境，从理论上对民营科技企业成长的环境体系进行研究。首先分析了民营科技企业成长环境的内涵和特征，讨论了构建民营科技企业成长环境体系的基本原则，在此基础上．构建了包括法律、政策、社会化服务、制度文化、市场竞争、技术、产业等七个方面的我国民营科技企业成长环境体系．分析了各个方面的内涵。     

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)

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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.