子系统

It is found thatthe fractal dimension D=1.25 corresponds to the lowest criticalcoupling constant αc=1.9,D=1.73 corresponds to the highest criticalratio of dielectric constants ηc=0.163,and when D≤1.145 bipolaronscan not exist at any rate.In chap,4,we will propose a novelapproach to the calculation of the exciton ground-state energy for thestrong-coupling case.Different from all previous methods,the wavefunction of the phonon part is assumed to take a form related to thewave function of the relative motion.We obtain the exciton energy bysolving the derived integrodifferential equation rather than select ahydrogen-like form to minimize the energy expectation.

结果发现，分数维的维数D＝1.25对应最小的临界的电-声耦合常数(αo＝1.9)，D＝1.73对应最大的临界的介电常数比(ηc＝0.163)，当分数维的维数D≤1.145时，双极化子无论如何也不可能存在，在第四章中，我们将提出一种新颖的变分方法来计算强耦合的激子-声子系统的基态能，不同于以前所有的方法，我们取声子的波函数与相对运动波函数有关的形式，而不是假定一个固定的关于相对运动坐标r的函数形式，得到相对运动波函数所满足的非线性的微分积分方程，我们数值求解这个微分积分方程得到系统基态能，而不是选择一个类氢原子的波函数变分使得能量的期待值最小。

It is found out that the reheat HAT cycle provides the maximum efficiency and the STIG cycle with intercooling and reheat provides the maximum specific work.

利用能量模型〓分析法分析了HAT循环的能量利用，给出了循环的〓平衡模型和能量传递—转换模型，计算了各子系统和各部件的〓损失和效率贡献系数，得出了不同于通常〓分析的结论，指出了HAT循环系统的更合理的节能方向。

In the light of the design object of automation packaging production line of edible iodize salt distribution centers,firstly,a model restricted with environment factors of function information is established,and design specification is described too.

以食用碘盐配送中心的全自动包装生产线为设计对象，首先提出了生产线设计要求，并建立了以环境为约束的功能信息模型与设计任务书的描述；其次，从生产线功能信息模型着手，阐述了生产线的功能分解策略，并最终提出了以包装系统为关键子系统的设计方案。

Backsteppnig control is applied to the positioning of ironless linear motor stage in this thesis. The controller design starts from a lower dimension subsystem and design a Lyapunov candidate for it. By choosing some appropriate virtual control input, the stability of the subsystem is guaranteed. Then extend to a larger system and choose a stabilizing control input for the extended Lyapunov candidate. The procedure is repeated until the overall system's actual control input appears, Again, the overall system's stability is guaranteed when the control input is appropriately chosen.

本论主要探讨逆向步进控制器在线性马达轨迹之控制，控制器之设计方式是由后往前一步一步推导，每一步推导的子系统，均满足Lyapunov稳定法则，在由后往前一步一步推导过程中，每往前推导一步，均必须符合最先所假设的条件与设计，直到方程式与系统的控制输入出现关连性，利用所设计之控制输入将系统的非线性问题予以解决，并因满足Lyapunov稳定法则而收敛。

In the chapter 5, we make our experiments in the process of Record libratory management system , one part of the whole zheJiang TV Statation MIS. We do requirement analysis and extract the business rule information, and then apply MIS-AD system to construct the Model Information Library. Meanwhile, we put forward that how to develop the program in client side. Finally, we compare our system with the traditional system and bring forward the difference between them.

本文第五章对浙江省电视台综合信息处理系统中磁带库管理子系统的业务流程进行需求分析，并抽取业务规则信息，使用MIS-AD系统建立它的模型信息库；同时指出在系统实际开发过程中，如何基于MIS-AD来开发客户端程序；最后我们对比了基于MIS-AD开发的系统和传统的MIS系统的之间的差异。

A neural network controller based on Particle Filter is designed to linearize the slow system and make the rigid motion track a desired trajectory.

设计了基于粒子滤波的神经网络控制器来线性化慢子系统，使其跟踪期望轨迹。

Finally, under given conditions, the liveness of global system can be determined by the same property of local systems.

最后，提出了合成系统保持子系统活性的条件。

It is shown that the whole system is managerially effective if and only if that all sub-processes are managerially effective.

理论分析表明：链型组织系统管理有效的充分必要条件是系统内的每个子系统均管理有效。

Stability and memoryless state feedback stabilization for discrete switched systems with time delay subsystems are studied.

针对一类子系统为离散时滞系统的切换系统，研究了稳定性与无记忆状态反馈镇定问题。

According to the operator procedure, jig's two sections are divided into three subsystems to control. The three subsystems are Feeder－Rejects Discharge－Downscreen Water Subsystem, Wind Control Subsystem which is based on the layer looseness degree and Middlings Discharge Control Subsystem which is based on the fine coal ash content.

论文依据实际生产过程人工操作方式，将一般跳汰机的二段分为三个子系统来进行控制，三个子系统是矸石段的给料、排矸石、筛下顶水子系统，以床层松散度为目标的总风量控制系统，中煤段的以精煤灰分为目标的排中煤控制系统。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。