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1.
企业生产运作能力的多层次综合模糊评判   总被引:2,自引:1,他引:2  
对影响企业生产与运作能力的各因素进行了全面细致的衡量和定量的.分析,并利用模糊数学的方法确定了指标评估体系,对各因素难以量化的指标赋予权重,建立了多层次模糊综合评判模型,并结合实例运用该模型对企业生产与运作能力做出了较为客观、科学、合理的评价,解决了仅用设备能力评价企业的生产与运作能力的片面性和局限性。  相似文献   

2.
改进模糊综合评价法的物流企业绩效评价
  总被引:1,自引:1,他引:0  
针对物流企业绩效评价问题的复杂性和模糊性的特点,立足模糊综合评价法的观点,建立了基于模糊综合评价的物流绩效评价指标体系。结合某物流企业的实际调查数据,构建了3个一级指标和10个二级指标的物流企业绩效评价指标体系,并建立了相应的模型。首先从决定物流企业服务绩效评价的3个因素即运作绩效、物流功能、客户服务质量着手,结合层次分析法对各因素的权重进行处理,并对其进行一致性检验,继而采用模糊综合评价法完成对该企业服务绩效评价因素的评定,根据最终得分从而得出结论。实证结果表明,模型的建立和指标的确定符合科学性,在物流企业的绩效评价方面具有一定的指导作用。  相似文献   

3.
物流服务创新已成为物流企业摆脱同质性竞争,增加增值服务,扩大市场份额,实现顾客价值与企业价值增值的有效途径,评价物流企业服务创新能力也就显得必要而且紧迫.在总结现有研究成果的基础上,采用层次分析法和模糊综合评判方法对企业的服务创新能力进行了评价,权重结果显示物流企业的服务资源投入能力、服务研发能力、学习与成长能力对增强物流企业服务创新能力具有重要的意义.  相似文献   

4.
运用Delphi法构建了科技企业孵化器运作绩效评价指标体系,依据AHP法确定了各指标的权重,然后结合灰色系统评估法和模糊综合评估法对科技企业孵化器运作绩效进行了综合评定,最后通过实例证明了该评价方法是可行的和有效的。  相似文献   

5.
基于生产过程的企业安全评价体系构建   总被引:4,自引:0,他引:4  
针对安全评价技术的应用现状,分析了现有安全评价体系在构建上的局限性,认为安全评价体系应基于现代安全管理体系的运作方式进行构建;在此基础之上,结合职业安全健康管理体系(OSHMS)的体系结构与企业的实际运作方式,提出了基于生产过程的安全管理模型,并运用这一模型,对安全评价体系的指标构成进行了分析,给出了构建安全评价体系的框架,并指出这一框架适合于企业及其子系统安全评价体系的构建;最后,结合矿井生产过程的提升子系统,构建了矿井提升系统的安全评价指标体系,给出了应用过程。  相似文献   

6.
建立项目评价体系,是企业市场开发科学决策、规范管理的重要手段;是企业市场开发由低端向高端、由单一型向一体化运作转变的重要标志。企业一般项目评价体系可分为投资风险评价、经济效益评价、经营业绩考核三个阶段。本文从建立评价体系的基本目的、基本原则、主要指标、实施方式等方面提出几点初浅的认识。  相似文献   

7.
在研究电子商务环境下新型物流配送中心特征和运作类型基础上,构建了适用于电子商务环境下的物流配送中心服务质量评价指标体系,进而为顾客及物流企业本身创造出越来越大的经济效益.在实际进行电子商务配送中心服务质量评价时,应咨询和参考各相关专家的意见和建议,进行定性的选择.  相似文献   

8.
与企业相关的利益主体很多,不同利益主体对企业业绩会做出不同的价值判断。构建基于政府角度的企业业绩评价指标体系,可以满足政府对企业业绩评价的客观需要,使政府对企业的生产、财务、市场、社会责任等方面的情况有一个宏观把握,以此作为规划、调控、服务和监督的依据。给出了基于政府角度的企业业绩评价指标体系,并对其进行了详解。  相似文献   

9.
第三方汽车物流服务企业的评价与选择   总被引:2,自引:0,他引:2  
阐述了第三方汽车物流服务企业的选择要求和选择程序,并构建了第三方汽车物流服务企业的评价指标体系,探讨了第三方汽车物流服务商的评价方法。  相似文献   

10.
一、服务质量评价的内涵 客房是饭店里最重要的部门,和客人的联系也最密切。脱离了客房,饭店的一切运作都失去了意义。因此,客人的满意是客房服务的工作标准;服务质量是客户最基本的感知。  相似文献   

11.
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.  相似文献   

12.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

13.
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。  相似文献   

14.
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  相似文献   

15.
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  相似文献   

16.
17.
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.  相似文献   

18.
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).  相似文献   

19.
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.  相似文献   

20.
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.  相似文献   

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