current flow
- current flow的基本解释
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电流
- 相似词
- 更多 网络例句 与current flow相关的网络例句 [注:此内容来源于网络,仅供参考]
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The structure of this article is as follows: Firstly, the background of this article is stated in exordia and the question was raised; chapter one stated cash flow management theory and transnational corporations' cash flow management characters; chapter two introduced general cash flow management technical and method; chapter three analysis cash flow management situation of Chinese transnational corporations; chapter four take VW as an example to expatiate company situation and the impact to cash flow management by the organization of the company, the goal of cash flow management and financing strategy, then introduce the cash flow forecast module, at last analysis the experience and disadvantage of VW's cash flow management; Chapter five give some suggestions to Chinese local transnational corporations for cash flow management including: using proper cash flow management technical and establish scientific process, ect.; the last part is the conclusion This article took VW's cash flow management as an example to descried transnational corporation cash flow management theory and practical issues, but some techniques can only be used in some country where can exchange currency freely; it can not be practical in some foreign exchange administration countries including China, such kind of cash flow module still under discussion based on theory.
本文结构如下:首先在绪言部分简述了选题背景,提出了问题;之后,第一章陈述了现金流管理理论和跨国公司现金流管理的特点;第二章评述了国际常见的现金流管理技术和方法;第三章分析了中国跨国公司的现金流管理现状;第四章详细阐述了VW公司现金流管理的实例,包括公司的发展及组织架构设置对现金流管理的影响,公司现金流管理的目标、筹资策略等,重点介绍了VW公司的现金流预测模型,最后分析了VW公司现金流管理的经验和不足;第五章详细阐述了对中国跨国公司现金流管理的建议,包括应用适合的现金流管理技术及建立科学的现金流管理流程等;最后在结论部分对该文做了总结。
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In this thesis the process of constructing the non-perturbative Hamiltonian theory is de-scribed and is applied to estimate the vacuum condensate. It contains the following contents:At the very beginning, by using the path integral method and eliminating the gluon freedom, aGCM action 〓 of current quarks including lower order current-current coupling was derivedfrom the QCD Lagrangian and the effective Hamiltonian operator that could hardly be doneby the normal methods was derived. After doing this, the broken vacuum is introduced whichincludes quark-antiquark condensate through the generalized Bogoliubov-Valatin transformation,the effective Hamiltonian of constituent quark was derived. The detailed formulas containingthe spatial current-current coupling term for the effective Hamiltonian and gap equations wasworked out by parameterizing the correlation kernel as a quadratic potential. And then, the gapequation was solved and the quark-antiquark condensate of vacuum was studied both in the casesof instantaneous interaction and retarded interaction. In the end, the effective Hamiltionian withtwo-body quark-quark interaction was derived with one-body approximation, and with the helpof the functional integral method the coupling non-linear dynamic equations for systems withnuclear matter was derived. Finally, these equations were solved by selfconsistent method andthe effect of nuclear matter on vacuum condensate was studied. The spatial current-current coupling term is too difficult to handle, hence the correlationkernel is assumed to be not important and usually omitted in the pure vacuum condensate, andthe instantaneous interaction generally is adopted. Retaining the spatial current-current termand partial retardation effect, the quark pairs condensate in pure vacuum was studied, and theeffect of quark mass was also studied. At present, little study is focused in the case with nuclearmatter and spatial current-current term also omitted. Under the approximation with partialspatial current-current term, the effect of nuclear matter on vacuum condensate was studied.
本论文描述了量子色动力学整体色对称模型哈密顿量方法的构建过程,得到了反映正反夸克对凝聚真空结构的关于组分夸克的有效哈密顿量算符,它隐含了胶子作用,并且准确至流-流耦合项;接着,通过参数化哈密顿量中的夸克作用关联核,导出平方禁闭势参数化选择的哈密顿量的具体公式和能隙方程;随后,应用公式,编程求解,考察了瞬时作用下和部分延迟作用下真空的正反夸克对凝聚,在计算中保留了空间流-流耦合作用;之后,导出瞬时势和延迟势下包含二体作用项的哈密顿量公式,并采用单体化近似,通过泛函变分方法得到核物质存在时耦合的非线性动力学方程;在保留部分空间双流耦合作用的近似下,求解核物质的动力学方程,考察核物质密度对真空凝聚的影响,以往考察真空凝聚,对关联核的选用,由于空间流-流耦合项不易处理,也认为作用不大,常忽略该项,并且常采用瞬时作用;本文保留空间双流项和部分延迟作用,考察了真空情形的夸克对凝聚,还考察了夸克质量对纯真空凝聚的影响,以往对核物质存在情形的真空凝聚考察很少,也都忽略空间流-流项,本文在考虑部分空间流-流项近似下,考察了核物质存在对真空凝聚的影响。
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This thesis deals with oil-water flow rate measurement using a venturi and develops a differential pressure-based two-phase flow rate measurement model, which does a terrific job with the use of a water fraction device. Meanwhile, Coriolis flow rate meter is also studied in the oil-water two-phase flow measurement and a SVM-based single-phase flow rate prediction method is proposed, realizing the prediction of single-phase flow rates. To overcome the disadvantages of both venturi and Coriolis flow meters, a double parameter measurement method is put forward, which combines the two meters and solves the problem of oil-water flow rate measurement. Last but not least, on the basis of the study of two-phase flow, a device for the separation of gas and liquid is designed and realizes the flow rate measurement of three-phase flow as oil, gas and water.
本文对文丘里管测量油水两相流流量进行了研究,建立了基于差压法的两相流流量测量模型,如果与含水率计相结合,可以较好的实现油水两相流的流量测量;同时研究了Coriolis流量计在油水两相流流量测量中的应用,提出了基于SVM的油水两相流分相流量预测方法,实现了油水分相质量流量的预测;针对文丘里管和Coriolis测量油水两相流存在的问题,提出了文丘里管和Coriolis流量计相结合的双参数测量方法,并实现了油水两相流的流量测量;最后,在对油水两相流研究的基础上,设计完成了一种气液分离装置,实现了油气水三相流的流量测量。
- 更多网络解释 与current flow相关的网络解释 [注:此内容来源于网络,仅供参考]
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flow chart; flow diagram; flow sheet:流程图
flow box:流浆箱 | flow chart; flow diagram; flow sheet:流程图 | flow control:流量控制
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reverse current release:逆电流释放器-current test逆电流试验
reverse current relay 逆流继电器逆流继电器 | reverse current release 逆电流释放器-current test逆电流试验 | reverse current time-lag relay 逆电流时延继电器
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designer:设计器
SSIS Package 设计器 (Designer). 数据流程页面(Data Flow): 只有在控制流程页面中建立了至少一个 Data Flow Task,这个数据流程页面才是可用的. 在Control Flow 中双击 Data Flow Task并不会自动打开一个像其他任务那样的设置创口,