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1.
基于Shapley值的价值链合作企业成本分摊博弈分析   总被引:1,自引:0,他引:1  
分析了价值链合作企业之间的博弈模型,合作关系存在的必要条件。利用博弈论中的Shapley值法,给出了成本分摊方法,以便合理设计价值链合作企业之间的成本分摊机制。最后通过实证介绍如何利用Shapley值法应用于成本分摊,并提出价值链中企业合作关系长期存在的有关建议。  相似文献   

2.
由于环保设备本身只是辅助治理污染的工具,并不能实现对污染的完全治理,这就使得企业在采购环保设备时除了要承担购置费用,还要承担一部分排污的费用。技术越先进的环保设备对于污染的治理率就越高,但相应的采购成本也会随之增高,这就为环保设备的成本分摊提出了更高的要求。该文首先针对近些年来我国环保设备的选择现状进行了介绍,进而针对成本分摊与合作博弈理论进行了具体的分析和论述,最后应用合作博弈这种理论对设备的购置实现了成本的有效分摊。  相似文献   

3.
结合新产品研发风险,分析了新产品研发的难易程度和研发项目对企业的重要性如何影响企业合作形式选择问题。基于Netlogo软件的仿真分析发现,如果新产品研发的难度较大和研发项目对企业重要性较强,应选择成本共担式合作;反之,则应选择固定支付式合作。  相似文献   

4.
农村新型专业合作组织的崛起,大体而言,规避了部分市场风险,提高了农民的收入.对推动农业现代化、产业化起到重要的作用。农民参加专业合作组织的积极性究竟多高?影响农民参与专业合作组织的因素很多.笔者认为最关键的因素是成本代价。高合作成本、低合作收益使农民合作组织很快陷入困境。本文从农民个体、专业合作组织本身、政府三个层面浅析专业合作组织的发展成本代价问题。  相似文献   

5.
崔山磊 《科技信息》2011,(5):416-416
基于对现实中农民合作案例的调查研究及有关农民合作文献资料的理论分析,本文认为当前我国农民合作进程中存在着诸如村庄没有合作基础、村民组织起来难、缺少精英和经费等关键因素以及合作社发展遭遇瓶颈等几个问题  相似文献   

6.
高职院校目前普遍存在制约专业建设和发展的资金项目瓶颈问题,本文首先介绍了问题产生原因,分析了政府和企业存在的优质资源,从学校政府企业等角度分析了各自在教育资源配置上的观念差异,介绍了安徽国防科技职业学院近年来以"政校合作,校企合作"的模式实现优质资源共享的一些途径和方法,该方法对于其他高职院校借助共享资源发展自身具有借鉴意义。  相似文献   

7.
简要介绍了十一五产学研合作的主要情况,重点介绍了产学研合作的新模式和存在的主要问题,并且从几个方面分析了如何推进产学研工作。  相似文献   

8.
制度是用于共同体内的众所周知的规则,据其产生和强制执行的方式,可分为内在制度和外在制度。人际合作通常都需要有制度框架,但不同社会的合作赖以成立的制度类型有所不同。本文试图运用制度的两种不同类型来分析在传统社会和现代社会中,农民合作产生和运行的制度基础。并指出农民难于合作的困境在于其制度上的缺陷。  相似文献   

9.
余红柳 《科技信息》2007,(11):140-140,143
在介绍高校与银行合作原则、合作资金关系和合作内容的基础上,分析了影响高校与银行合作关系的因素,提出了改进银行和高校合作关系的措施。  相似文献   

10.
在纵横交错的现代经济生活中,企业之间相互影响和制约,甚至是共存共荣,这就决定了企业(包括同行)之间不仅存在着竞争关系,也必然存在着合作的可能性。本文首先介绍了合作营销的含义,分析了合作营销产生的理论背景和现实背景,提出了合作营销的实施策略以及实施合作营销时应注意的几点问题。  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
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   

14.
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   

15.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

16.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

17.
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。  相似文献   

18.
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.  相似文献   

19.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

20.
In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.  相似文献   

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