基于BCC-Malmquist的大庆油田企业创新效率评价

运用BCC模型-Malmquist指数模型测度大庆油田企业技术创新效率.就大庆油田企业自身发展特点,构建技术创新效率评价指标体系,以2011~2014年数据对大庆油田企业技术创新效率进行评价,并对评价结果进行参数灵敏度分析,对影响企业技术创新效率的重要参数排序,分析显示,决策单元数量与效率水平呈反比,参数数量与效率水平呈正比,在可比性原则下,增加决策单元数量,精确参数数量,对于提升技术创新效率有显著作用.     

加强专利信息服务助力企业技术创新对策研究

企业的生存离不开技术创新,而专利信息是企业技术创新的重要源泉之一.通过对专利信息进行分析,可以为企业的竞争情报及企业专利战略制订提供具有较高价值的客观依据,从而全面提升企业的技术创新能力和核心竞争力.在新的发展时期,科技信息服务机构必须创新服务方式、服务内容、服务机制,加强专利信息服务,为企业的自主创新提供专业的科技情报服务,促进企业科技创新水平的提升.     

基于信息熵和DEA的企业技术创新能力评价方法

针对传统企业技术创新能力评价方法的局限性,提出一种基于DEA和熵值法的企业技术创新能力评价模型.该模型在熵值法给出的评价结果的基础上,结合DEA模型的计算结果,对传统评价结果进行合理的修正,使得修正后的结果具有考察不同投入规模单元之间产出绩效的比较分析功能.计算结果表明新的排名结果既反映了企业技术创新的绩效水平,又反映了投入产出率和产出的规模有效性,企业技术创新排名结果是合理的.     

基于差异驱动模型的我国大中型工业企业技术创新能力动态评价

以我国大中型工业企业技术创新能力动态评价问题为研究对象,从创新投入和创新产出2个方面建立了大中型工业企业技术创新能力动态评价指标体系,应用基于三次差异驱动理论的动态评价模型,并以2000—2012年我国省级区域大中型工业企业为对象进行了实证研究,对我国省级区域大中型工业企业的技术创新能力实现了排序并发现了技术创新能力地区间的差异性.以提高我国大中型工业企业的技术创新能力为目标,结合我国大中型工业企业技术创新过程中存在的问题,从营造良好的创新环境、提高金融支持水平、加强企业人力资源培育能力等方面提出了进一步提高大中型工业企业技术创新能力的政策建议.     

治理水平对企业技术创新的作用理论分析——兼论制度调节因素

"新常态"发展背景下,企业实现技术创新以谋求生存和发展是一个重大命题。在回顾以往研究的基础上,探讨了提高治理水平对企业进行技术创新的三大推动作用,以及企业内生因素、市场化程度、产权性质等三大制度因素在这一过程中所发挥的调节效应。     

先进制造企业技术创新能力评价及其成熟度模型的研究

技术创新能力是先进制造企业可持续发展的关键,面对全球化的竞争,我国先进制造业企业如何去面对的关键是提升企业技术创新能力及其成熟度。因此,识别企业技术创新能力和建立其成熟度评价模型对我国先进制造业的发展具有重大的推动作用。通过对技术创新能力要素构成以及评价模型进行详细分析,在综合国内外各种关于能力成熟度模型的基础上,提出了先进制造业技术创新能力成熟度模型,并划分了技术创新能力的5个层级,不同层级之间代表不同的能力水平。     

加强技术创新管理 提高企业竞争力

随着社会经济时代的到来,技术创新是企业生存和占领市场的制胜法宝,加强技术创新管理成为企业发展的主旋律。本文针对当今中药企业技术创新的现状、阐述了中药企业如何进行技术创新管理,提高企业竞争力。     

基于DEA模型的科技型企业技术创新绩效研究

基于创新效率评价的研究成果,本文构建科技型企业绩效评价体系,运用DEA模型,从效率、有效性、规模报酬和投影分析四个方面,对58家创业板上市公司技术创新绩效进行评价与分析。结果表明:企业规模效率增长较快,纯技术效率偏低,导致技术创新效率水平较低;非DEA有效企业比重较大,存在技术创新投入冗余或产出不足现象;规模报酬递增企业减少,说明在创新驱动发展战略下,企业进行了大规模技术创新投资或多元化发展;技术创新投入不变的情况下,企业创新绩效产出不足,尤其在营运能力和偿债能力方面有待进一步提高。     

建筑领域企业技术创新评价研究

在对企业技术创新评价总述的基础上,针对建筑领域的企业特点,就建筑领域各类企业提出了创新的评价指标及评价方法,上述研究有利于各级政府和企业考量技术进步水平,使建筑技术政策的制定规范化、标准化.     

北京农业科技企业技术创新绩效评价研究

近年来，农业科技企业技术创新投入逐渐增加，但在创新成果转化、创新资源利用等方面仍需加强，提高创新绩效水平势在必行。以北京农业科技企业为研究对象，建立了技术创新绩效评价指标，然后运用数据包络分析法中C2R和BC2模型对北京农业科技企业技术创新绩效进行评价。研究表明，近几年北京农业科技企业技术创新绩效水平相对较高且发展较快，但个别年份仍然存在投入产出结构不合理问题，需要政府和企业共同努力，加强对农业资源配置管理，进而更好地提高农业科技企业技术创新绩效水平。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

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…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

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。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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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     

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