- 更多网络例句与零链相关的网络例句 [注:此内容来源于网络,仅供参考]
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The idea of zero cost cycle is devised to solve the critical problem of minimum cost flow. Additional related results obtained include: the theory of bottleneck analysis based on minimum cost augmentation chain and zero cost cycle; the proof of the existence condition and the coherence condition of bottlenecks based on network output; methods to solve various kinds of process bottlenecks; the development of the algorithms of optimization and bottleneck analysis of MCPN (i. e, MCPN-CBA1 and MCPN-CBA2); a series of scheduling strategies and algorithms based on cost analysis, profit evaluation and bottlenecks of process flow line.
四。提出了基于工艺流程成本分析、利润评价的两类生产网络模式:最小成本生产网络和最大利润生产网络;首次提出零成本圈的概念,从而提出并研究了最小费用流的临界问题;创建了基于最小成本增广链、零成本圈的瓶颈分析理论,证明了过程瓶颈的存在性条件以及基于网络加工量的瓶颈一致性条件;给出了求解各类瓶颈的关键技术,研究开发了MCPN的瓶颈分析算法MCPN-CBA1、MCPN-CBA2;提出了一系列基于工艺流程成本分析、利润评价及过程瓶颈的调度策略和调度算法。
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Quasi diagonally dominant matrix with chain of non-zero elements ; Comparison matrix ; Principal minor
本文主要讨论了拟具非零元素链对角占优矩阵的几个性质,丰富了拟具非零元素链对角占优矩阵的理论。
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Flory found for the first time that the zero shear viscosity of thepolymer in melt is proportion to its molecular weight for flexible polymersin 1940. Hereafter Fox and Flory found that the zero shear viscosity isproportion to M〓 when the molecular weight is above the critical value,and is proportion to M when below the critical value.
1940年Flory首先发现对于柔性链聚合物而言,其液态的零切粘度同其分子量成正比;此后, 1948年Fox和Flory发现当聚合物链的长度超过某一临界值时,粘度与分子量的3.4次方成正比,而在临界值之下时粘度与分子量的1次方成正比。
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Years 8 months, the highest in the world,"500", one of Kingfisher Group decided that the next 2-3 years, set up in Shenzhen more than building materials chain.
二零零一年8个月,是世界上最高的," 500 ",其中英国翠丰集团决定,未来2-3年,在深圳设立了超过建筑材料链。
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The realize method of ITC strategy in FSTP induction generation system is studied. In order to improve stable performance of FSTP induction generation system, SVM-ITC (ITC based on space vector modulation) is investigated. Creation method of reference voltage vector which includes change trend and magnitude information of flux link and torque is presented. Because there is no zero voltage vector in four-switch system, a method which employs opposite vector in equal time to replace zero voltage vector is proposed. Two vector modulation schemes are presented.
为提高容错型四开关三相异步发电系统的稳态性能,进行了基于空间矢量调制的瞬时转矩控制研究,提出了包含磁链与转矩变化趋势与大小信息的电压参考矢量生成方法;针对四开关系统无零电压矢量的情况,提出用等时间相反矢量来代替零电压矢量的作用,并给出了两种矢量调制方案。
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The concept of zero inventory for creative products is put forward and deeply analyzed.
针对创新性产品,提出并深入研究了零库存的概念,建立了适合企业生产及库存预测的电子商务供应链模型,实现产品的生命周期与零库存的无缝链接。
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It points out that under the hard-switching PWM pattern, the movement speed of flux linkage is adjusted by zero space voltage vector, but when soft-switching PWM pattern is used, effect time of space voltage vector vary greatly, sometimes even no zero space voltage vector exist.
指出在硬开关PWM模式下,磁链的运动速度靠零空间电压矢量调节;而在软开关PWM模式下,空间电压矢量的作用时间发生了很大变化,有时甚至没有零空间电压矢量。
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ZEDsystems-open book development costing and appraisal; ZED in a Box standard house type range; and ZEDproducts integrated supply chain inform many of our designs.
ZED系统——开放式账册开发成本计算和评估;在箱式标准住宅房型范围内的零能耗开发;零能耗开发产品,包含阐述我们的很多设计的供应链。
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By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.
第四章是本文的重点及主要创新内容,我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链,我们得到的主要结果和创新之处是:(1)证明了这一模型具有一种隐藏的对称性,即自旋第三分量为零的格点数目是一个守恒量,并证明基态出现在空穴数目为零的子空间中;(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型,并给出了相应严格的波函数及能谱;(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变,我们得到了量子临界点的精确位置,并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。
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The article presents the developing condition of PWM and SVPWM first.Then the theory of SVPWM is discussed in detail.The SVPWM is based on the thought of magnetic chain tracking.It makes the ideal magnetic chain circle of three-phased sysmmetry electric motor supplied by three-phased sysmmetry sine wave voltage for basis,uses the practical magnetic chain vector formed by the different switch modes of three-phased inverter to track the basic magnetic chain circle.During the course of tracking,the inverter changes the switch modes properly to form the PWM waves.Then the modulation wave of SVPWM is analyzed in detail.The modulation wave of SVPWM is implicit,but the analogous modulation wave in A-B-C axis needs to be calculated in order to expose the internal relation of SVPWM and SPWM.That is to show the implicit modulation wave of SVPWM. SVPWM actually is a transformed SPWM ruly sampled by the modulation wave which is injected by the zero prefaces based on space vectors.
本文首先对脉宽调制技术的发展现状进行了综述,在此基础上分析了电压空间矢量脉宽调制技术的发展现状;接着对空间电压矢量脉宽调制技术的基本原理进行了详细的分析和推导,SVPWM是基于磁链追踪的思想,它以三相对称正弦波电压供电下三相对称电动机定子理想磁链圆为基准,由三相逆变器不同开关模式下所形成的实际磁链矢量来追踪基准磁链圆的,在追踪的过程中,逆变器的开关模式作适当的切换,从而形成PWM波;然后详细分析了电压空间矢量脉宽调制技术的调制波,虽然SVPWM法的调制波是隐含的,但是为了揭示SVPWM法与SPWM法的内在联系,需要求出SVPWM在A-B-C坐标系上的等效调制波,也就是将SVPWM的隐含调制波显化;SVPWM实质是一种基于空间矢量在三相正弦波中注入了零序分量的调制波进行规则采样的一种变形SPWM。
- 更多网络解释与零链相关的网络解释 [注:此内容来源于网络,仅供参考]
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The Arabian Nights:<一千零一夜>
这样的人作为一部商业书籍的主角再合适不过,特别是他的企业还是以>(The Arabian Nights)中的一个故事命名的(顺便介绍大家一个可以买到便宜的外文书的地方,点击我的头像,里面有网络地址链接,给大家带来不便,请多多包涵).
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automatic reset:自动复位,自动置零
186automatic link自动链接 | 187automatic reset自动复位,自动置零 | 188automatic size自动调整大小
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Combining:组合
它在内部调用其前面一个委派.../ fbChain 引用零个委派的链(fbChain is null)/用 C# 对委派对象进行 组合(Combining)和 删除(Removing)操作编译器在内部翻译所有在委派对象上使用的 = 操作符,
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left continuous:左连续[的]
左理想升链条件|ascending chain condition for left ideals | 左连续[的]|left continuous | 左零因子|left zero divisor
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Previous Page:上一页
术语和 WordPress 主题的层式结构 每个页面有哪些部分组成 如何安装...日志导航链接 是从零开始创建 WordPress 主题系列教程的第五篇的第五部,在绝大多数的 WordPress 博客的底部,都会有 下一页 (Next Page) 或者 上一页 (Previous Page) 这样的导航链接.
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removing:删除
它在内部调用其前面一个委派.../ fbChain 引用零个委派的链(fbChain is null)/用 C# 对委派对象进行 组合(Combining)和 删除(Removing)操作编译器在内部翻译所有在委派对象上使用的 = 操作符,
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zero algebra:零代数
zero 零 | zero algebra 零代数 | zero chain 零链
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zero chain:零链
zero algebra 零代数 | zero chain 零链 | zero divisor 零因子