查询词典 zero chain

For the first time, the dynamics changing process of KGM chain in vacuum is proposed, We obtained the following results: polymerization degree influences the stability and shapes of the chain, the chain stability drops with the increasing of polymerization degree, for the high polymerization degree KGM, KGM chain takes on irregular curl state; acetyl group is not the main factor influencing chain conformation , during the course of dynamics movement KGM chain takes on irregular curl state before and after acetyl group was doffed, Extending and curling states change periodicity and has good flexibility.

首次提出了KGM链的动态模型，得到了以下结果：聚合度影响其链形态和稳定性，对于高聚合度的魔芋葡甘聚糖来说，其链呈现无规卷曲状态且稳定性下降，在整个动态运动过程中KGM链脱乙酰基前后都呈现无规卷曲状态，而且其伸展和卷曲的变化是周期性的，表现出了很好的柔性，说明乙酰基不是影响其链形态的主要因素，二面角能和静电作用是真空中影响单链构象的主要的键合作用力和非键合作用力，但是乙酰基对氢键作用的影响(来源：ABC6c论文网www.abclunwen.com)较大。

Based on the analysis of the problems which the Inventory Management of foreign and abroad faced, and considered the theory of Supply Chain, we can analysis the threatens and the reasons bringing by the information requiring of mutating and expanding phenomena -"Bull-whip Effect" in the Inventory Management of chain environment, and can further bring about the policy to solve it. We studied the three new policies for Supply Chain Inventory Management, and VMI realizes the cooperative management between the superior and subordinate knot of supply chain in the enterprise; Multi-grade Management realizes the optimization of the supply chain inventory management from full view; but JMI is the inventory management form of risk sharing, its stress the jointed within the supply and demand at the same time and constitute the inventory plan, to promote every managers (vender, manufacturers, distributors) of the SCM are thinking the harmonious with them, to keeping the accordant anticipate for the inventory manager"s inquest between two conjoint enterprises.In view of VMI stratagem"s fine pragmatism and operation, on the base of understanding VMI, combine the conceivable four assorted relationship in the real supply chain between the conjoint enterprises.

论文在分析国内、国外库存管理所面临的问题的基础上，结合供应链一体化理论，对供应链环境下库存管理中出现的需求信息变异放大现象--即&长鞭效应&的危害及其产生原因进行了分析，在此基础上进一步提出了解决&长鞭效应&的措施；重点研究了实现供应链库存管理的三种新策略，其中，供应商管理库存实现了供应链上级与下级节点企业之间的协作管理；多级库存管理是从全局的角度实现了供应链库存管理的优化；联合库存管理是一种风险分担的库存管理模式，它强调供需双方的同时参与，共同制定库存计划，使供应链中的每个库存管理者(供应商、制造商、分销商)都从相互之间的协调性考虑，使得供应链相邻两节点企业之间的库存管理者对需求的预期保持一致基于VMI策略的良好的实用性和可操作性，在理解VMI概念的基础上，结合实际供应链中节点企业间可能出现的四种组合关系，相应地提出四种概念性架构，用以表达：VMI系统的内部结构；VMI系统与节点企业内部管理系统的接口关系及两类系统的关系；VMI系统与节点企业间的信息共享与转换，如库存信息在供需之间的传递、加工等具体过程。

Soft specializes in the production of EVA, Paper superscript, subscript pants, shoes superscript, rubber shoes at the end of mobile Block, PU products, football pendants, pendants cartoon, ball, rugby, acrylic key chain, compass key chain, crystal stone key clasps, leather key chain lights, flashlight key chain, key chain lightsé, tape measure key chain, PP fan, drink coasters, crystal coasters, pen, cushions, Trolltech Kai bottles, metal bottles Kai, Non-woven bag, bank bags, raincoats, aprons,×melamine, plates, bowls, plastic cups, cartoon, bank card sets, book sets, plexiglass and other products.

专业从事生产EVA软胶、皮标、裤标、鞋标、橡胶胶鞋底、手机座、PU类产品、足球挂件、卡通挂件、皮球、橄榄球、亚克力匙扣、指南针匙扣、水晶石匙扣、仿皮灯钥匙扣、电筒匙扣、验钞灯钥匙扣、卷尺钥匙扣、PP扇子、杯垫、水晶杯垫、笔筒、桌垫、奇趣瓶启、金属瓶启、无纺布袋、银行袋、雨衣、围裙、密胺烟缸、盘、碗、塑料杯、卡通片、银行卡套、存折套、有机玻璃等系列产品。

Transportation equipment: non-standard conveyors, belt conveyors, conveyor rollers, conveyor chain plate, screw conveyor, universal ball 、 Fauré round conveyor, plug-in line, differential chain, chain conveyor line of plastic plates, plastic Chain conveyor line network, keel chain conveyor line, metal chain plate conveyor line, hanging transmission line, Sushi lines, and turning Belt Line PLC control system upgrade machines-fluent.

输送设备：非标输送机，皮带输送机、滚筒输送机、板链输送机、螺旋输送机、万向球/福莱轮输送机、插件线、差速链、塑料板链输送线、塑料链网输送线、龙骨链输送线、金属链板输送线、悬挂输送线、回转寿司线，转弯皮带线以及 PLC 控制系统提升机、流利架。

Our products, ranging from Dia.3mm to 32mm, bright finished, electro galvanized or hot dipped galvanized, are classified by carbon steel link chain, tire chain, tow chain, safety chain, stainless steel link chain and chain assemblies, covering over 300 different sizes and specifications that being widely used in lifting, pulling, lumbering, binding, fishnet anchoring and decorating.

本公司主要产品为直径3.0毫米到32毫米的本色链、电镀锌链和热镀锌链，包括各种碳钢链、拖车链、安全链、防滑链、塑料链、不锈钢链、起重链等300多个规格品种，产品级别有28级43级和70级，适用于起重、伐木、捆扎，升降鱼网下坠及装饰等用途。本公司可根据来图来样承接特殊规格的焊接链条和链条组合用具。

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。

The results show that the zero speed point is located on the arc between two absolute speed zero points of rotation axes, and the necessity of relative speed zero point is demonstrated, From the location of speed zero point, some useful conclusions can be drawn.

对速度零点的位置进行了分析，得出了如下结论：对于一定形状的工件，通过调整两轴的转速比以及两轴夹角参数，可以将速度零点置于工件之外，从而避免速度零点对研磨的不利影响。

With the help of computer program, zero speed point was searched. The results show that the zero speed point is located on the arc between two absolute speed zero points of rotation axes, and the necessity of relative speed zero point is demonstrated.

利用程序对相对速度零点的位置进行搜索，发现速度零点处于两轴绝对速度零点之间的圆弧上，从而证明了相对速度零点存在的必然性。

A cycle is one complete reversal of an alternating current or voltage from zero to a positive maximum to zero again and then from zero to a negative maximum to zero again. The number of cycles per second is the frequency.

周期周期是指交流电流或电压从零到正最大值再到零，然后从零到负最大值再到零这样一个往复的过程；而频率则是指每秒可完成的周期数。

Cycle A cycle is one complete reversal of an alternating current or voltage from zero to a positive maximum to zero again and then from zero to a negative maximum to zero again.

周期 周期是指交流电流或电压从零到正最大值再到零，然后从零到负最大值再到零这样一个往复的过程；而频率则是指每秒可完成的周期数。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。