经济数学法探讨国有独资企业治理结构的改革

鉴于国有企业的经营状况日益惨淡，笔者从公司的治理结构入手，分析了传统国有独资企业在公司治理结构上的缺陷，提出了对国有独资企业进行治理结构改革的几个思路，并提出了决定国有企业领导人的新方法及国有企业治理结构内部各种权力相互制衡的机制．     

浅论企业的资本结构优化

本文针对我国企业资本结构存在的负债率过高、股权结构不合理等方面存在的问题,分析影响资本结构的内外部因素,指出最佳财务结构的标准,对国有独资企业、改制后的中小国有企业和股份制企业三种不同类型的企业,提出资本结构优化的措施。     

国企人力资源开发中的激励问题探讨

本文针对我国国有企业人力资源的治理结构现状,提出了构建国有企业经营者及员工激励机制具体措施和建议。     

国有企业内部治理机制对企业技术创新的影响

以企业资源理论、企业治理理论和企业战略管理理论为基础,从国有企业内部治理机制入手,实证检验中国国有企业内部治理机制对企业技术创新活动的影响.结果表明:中国国有上市公司资产收益率、领导权结构和资产负债率与企业技术创新有显著正的影响;股权集中度和公司规模对企业技术创新有负的影响;国有上市公司高层管理人员持股比例对企业技术创新没有影响.     

国有企业公司治理结构模式的建立及选择

建立并完善公司治理结构已经成为国有企业改革的一个根本出路。但是，国有企业构建有效公司治理结构的进程尚处开始阶段，还存在很多问题亟待解决，本文就此提出了相应的建议和措施。     

我国国有企业治理结构中存在的问题及对策探讨

本文在论述了公司治理结构的内涵的基础上,指出公司治理结构一般包括四个方面。本文分别从这四个方面分析了我国国有企业治理结构中存在的问题,并提出了一系列相应的改进建议。     

走进新天地——滨化集团股权多元化和结构优化工作纪实

近些年来,国有企业股份制、企业制改革的一个重要经验教训,就是凡是没有形成多元投资主体、转为国有独资公司的,都很容易形成“翻牌”公司,这样的公司难以按规范的现代企业制度运作,规范的公司法人治理结构难以形成,职工对公司的关切度不高,政企无法真正分开,一些企业因此陷入困境。党的十五届四中全会决定指出:股权多元化有利于形成规范的公司法人治理结构。可见,实现投资主体多元化,对国有大中型企业的改革至关重要。决定同时指出了国有企业结构优化和产业升级的重大意义。对于国有企业,投资主体多元化与结构优化、产业升级之间是否有一定的内在联系?滨化集团将投资主体多元化与优化结构、产业升级作为最关键的两方面工作来抓,运用二者的辨证关系,走出了一条新路,使企业从国家政策限制的行列挤身到国家政策扶持的行列,取得了突破性发展,其经验值得借鉴。     

股权分置改革与深化国有企业改革

阐述了在国有企业改革的历史进程中,国有企业经过股权分置后的状况.分析了股权分置在新的历史阶段的缺陷,论述进行股权分置改革的必要性.股权分置改革的实施,有利于国有上市企业完善公司治理结构、建立现代企业制度,实现战略重组,增强上市公司市场竞争力.但同时,进行股权分置改革只是我国资本市场发展的一个新的起点;要深化国有企业改革,须进一步提高企业质量,积极推进大型、特大型国有上市公司产权制度改革,建立合理的公司股权结构,健全法制,树立诚信,加强监管.     

运用激励理论,合理构建国有企业激励机制

研究企业激励理论,通过构建激励机制提高企业经营效益,减少企业治理成本是当前经济学和管理学研究热点之一。文章通过分析当前国有企业激励机制中存在的主要问题和激励理论在企业中的应用,针对我国国有企业治理结构现状,提出构建国有企业经营者及员工激励机制具体措施和建议。     

公司治理结构的理论分析--一种外部市场的观点

公司治理问题最近已经成为公司金融领域内的研究重点。通过对公司治理结构的分析，从外部市场利益相关者的角度，讨论了公司治理结构与金融市场、经理人市场、产品市场等外部市场的互动博弈关系，并对我国国有企业公司治理结构的优化以及市场改革提出了政策建议。     

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.     

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.