企业集团税后利润的优化问题

研究一个既有内部关联交易又有外部交易的企业集团如何对税后利润总额进行优化的问题·以转移价格、运输费用分配率、内部交易次数、外部交易次数及交易量为决策变量,建立了企业集团税后利润优化模型·并且考虑了库存占用资金受约束条件下的经济订货批量,将对转移价格的研究与对库存管理的研究做了结合·最后应用进化规划算法做了仿真计算,结果表明企业集团的税后利润可以通过有关变量的调整来优化·     

信息不对称条件下企业集团税后利润的优化

研究了信息不对称条件下一个既有内部关联交易又有外部交易的企业集团 ,如何通过转移价格、运输费用分配率等因素 ,减少信息不对称子公司的道德风险 ,实现企业集团整体税后利润最大化的问题·根据委托代理理论 ,从最大化企业集团期望税后利润的角度出发 ,考虑了信息不对称子公司的个体理性约束和激励相容约束 ,以转移价格和运输费用分配率为决策变量 ,建立了企业集团税后利润优化模型 ,并应用进化规划算法对模型作了仿真计算·结果表明 ,企业集团可以通过转移价格、运输费用分配率等变量的适当选择来优化自己的税后利润     

供应链的利润模型与优化问题

建立并改进了供应链的成本模型·应用管理会计基于作业的成本分析方法,研究了供应链成本结构,并给出8种不同类型的分销商作业成本·以顾客订货量中可调整部分为决策变量,建立了分销商的利润优化模型,为协调供应链成员关系提供了有效依据·最后,采用进化规划算法,并结合宝钢采购处实际进行了仿真计算,结果表明:在一定范围内调整顾客订货量,可以增加分销商的净利润     

一类供应链订货的Stackelberg主从对策

给出了一个一般Stackelberg对策问题模型及其解计算的遗传算法求解步骤·在一类单分销商、多顾客单产品供应链中 ,针对订货的Stackelberg对策中分销商的最小补充期协调问题 ,建立顾客成本合理性约束下的分销商成本优化模型 ,并以辽化石油分销系统为对象进行了Stackelberg对策的仿真实验·结果表明 ,通过供应链中最小补充期协调 ,整个供应链及其成员都可从中受益 ,供应链订货的Stackelberg对策的分散协调机制有效地实现了供应链协调·     

原材料价格随机波动的闭环供应链契约协调机制

在原材料与回收材料可相互替代的前提下,针对原材料价格随机波动的情况研究了闭环供应链的运作过程,构建了考虑生产调整成本的非合作斯坦伯格博弈模型.以费用共担契约为主要研究内容,证明了契约变量可调整的再制造供应链效率高于固定参数的供应链,继而以制造商、回收商的可调整契约期望利润为优化依据,设计了随着原材料价格波动,回收批发价、费用分担比例可调整的费用共担型再制造闭环供应链契约协调机制.最后证明了契约的有效性并给出了算例分析.分析结果表明:原材料价格随机波动幅度越大,可调整的费用共担契约的改善程度越高,并能实现供应链中利润和费用的合理分配.     

服务销售系统供应链模型设计及其应用

研究了服务销售系统供应链模型,建立了不但具有选址、设施产品及市场顾客配置,还具有对于市场销路调控的供应链混合整数规划模型,并且设计了适用于这种混合整数规划供应链管理决策的遗传算法,最后对于报纸零售问题进行了供应链仿真计算·仿真结果表明,应用供应链模型对商业服务中设施选址、产品和市场顾客配置问题的进行优化,可以大大降低其零售过程中的销售成本·因此,如果能够结合实际问题作进一步的改进的话,此模型将具有很大的实用价值·     

考虑碳排放权交易的供应链三方企业价格决策

考虑碳排放权交易,研究由碳排放权供应商、制造商和零售商组成的供应链系统三方企业价格决策问题,根据制造商和零售商所组成的供应链分散决策和集中决策情形,分别建立三方企业价格决策模型,并比较分析两种决策情形的优化结果.理论分析表明:供应链集中决策情形下碳排放权供应商的碳权转移价格、碳排放权供应商利润、制造商与零售商组成的供应链利润均高于分散决策.最后通过算例对模型进行验证,并分析单位碳排放权成本、单位产品碳排放成本、单位产品碳排放量和政府分配的碳排放配额对碳排放权供应商利润、制造商利润和零售商利润的影响.     

物流管理中的主从对策问题

研究了一类单卖方、多买方单产品供应链的物流管理,给出了最小补充期协调下的主从对策基本模型,其中卖方为主方,买方为从方·建立了买方成本理性约束下的卖方成本优化模型·并以上海宝钢冷轧板销售系统为对象,应用遗传算法进行了主从对策的仿真实验·实验表明,通过现代物流管理中的最小补充期协调,供应链物流活动的整体利益得以显著改善,双方成本均有不同程度的减少,物流订货补充的主从对策在内部供应链物流管理中的效果尤为明显·     

具有柔性的供应链模型优化问题及其应用

研究了柔性供应链优化问题,确定了供应链总成本的结构,考虑了供应链生产和分销的各种约束条件,建立了柔性供应链优化模型,应用进化规划方法对一家农机公司柔性供应链模型进行了仿真,分析了总成本对柔性的敏感程度·结果表明,该模型采用生产能力柔性和分销能力柔性指标反映了生产和分销的不确定性,能够更综合地评价供应链的运作绩效,有助于设计出高效率、高效益的柔性供应链系统,而且对于数据量庞大的混合整数线性模型求解,进化规划方法是适用的·     

一种交互式进化规划及其在供应链问题中的应用

基于适应度函数相对误差和若干参数的选择,提出了一种交互式的进化规划·这种交互方式利于群体初始解和变异,选择操作中方差参数的选取·将此算法应用在一个供应链优化问题中并进行问题的仿真应用·结果表明对于数据量庞大的非线性模型的优化求解,改进后的进化规划算法具有更强和更广泛的适用性     

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.     

Features of Women's language

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

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.     

Lower Paleozoic oil relationships within Williston Basin, Canada

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with