|
Abstract: The defects such as inclusion,splitting,dislocation and dendrite in the PbxLa1-x(Zry Tiz Sn1-y-z)O3(PLZST) single crystal grown from PbO-PbF2 flux by the slow cooling self-seeding technique were discussed in this paper.The forming mechanism of t
|
|
|
文摘:本文介绍了助熔剂缓慢降温自发成核法生长的稀土掺杂锆钛锡酸铅镧(PLZST)晶体中出现的几种缺陷：包裹体、开裂、位错、枝晶，分析了这些缺陷的形成机理并提出了减少和消除这些缺陷的一些措施。 |
|
Abstract: The definitions, theories, research methods of four types of plant community dynamics , i.e. succession, regeneration, fluctuation, edge effect of community will be reviewed.
|
|
|
文摘:以植物群落动态的四种主要表现形式，即群落的演替、群落的更新、群落的波动以及边缘效应为内容，分别从它们的定义、理论、研究方法、研究现状及其发展等方面进行了综述。 |
|
Abstract: The degreasing methods and mechanisms in leather-making are explained.The types of degreasing agents are discussed.Some typical degreasi ng agents and their application properties are introduced.The researching and de veloping directions of degr
|
|
|
文摘:阐述了制革生产过程中主要采用的脱脂方法及原理，讨论了脱脂剂的种类和作用方式，介绍了目前常用的一些脱脂剂的组成和使用性能，并提出了皮革脱脂方法和材料的发展方向，特别讨论了酶法脱脂的前景。 |
|
Abstract: The deposited film with magnesium/polytetrafluoroethylene(Mg/PTFE) material is produced by physical vapor deposition.The infrared radiation property of Mg/PTFE material is tested by using the infrared radiation meter.The results demonstrated tha
|
|
|
文摘:采用物理汽相沉积法设计制作了镁/聚四氟乙烯沉积膜材料，并用红外辐射计对其红外辐射性能进行了测试，测得该材料在1～3μm波段有较强的红外辐射，说明这种方法制作红外辐射烟火材料是可行的。 |
|
Abstract: The descending property of Newton method has discussed and an example has been given.
|
|
|
文摘:本文讨论了牛顿法的下降性并给出了算法及计算实例. |
|
Abstract: The design and calculation of the closed harmonic-planetary gear box are detailedly discussed this paper.
|
|
|
文摘:本文较详细地讨论了封闭谐波-行星齿轮减速器的设计计算。 |
|
Abstract: The design and initiation principle of exploding fo il initiators are described .An experimental study on the main parameters of sl apper elements has been made.The Reference is provided for the optimum design an d quality control of slapper det
|
|
|
文摘:叙述了爆炸箔起爆器的起爆原理及设计原则，对冲击片雷管元件的主要参数进行了试验研究，为冲击片雷管的优化设计及质量控制提供了参考依据。 |
|
Abstract: The design methodology and structure of hydraulic booster test stand are presented on the basis of analysis of the operation principle and parameters of the hydraulic booster used in the steering system of DFH1002/1202 crawler tractor.
|
|
|
文摘:在对东方红1002/1202履带拖拉机转向用液压助力器的工作原理和技术参数分析的基础上，阐述了该液压助力器试验台的设计方法和基本构成。 |
|
Abstract: The design of an opening software for emulating gas chromatography is described.
|
|
|
文摘:介绍了一种气相色谱仿真软件的设计思想、设计方法及其应用。 |
|
Abstract: The design of the flight control system with the vectored thrust is discussed.
|
|
|
文摘:对带推力矢量飞机的飞控设计问题进行了研究。 |
|
Abstract: The design problem of reduced-order state observer for a class of multi-input multi-output (MIMO) nonlinear time-varying systems is studied in this paper.A new design method of nonlinear reduced-order state observer is proposed,and the exponenti
|
|
|
文摘:研究一类多输入多输出(MIMO)非线性时变系统的降维状态观测器设计问题.提出一种非线性降维状态观测器设计方案，并从理论上证明了状态观测误差的指数收敛性.其中设计的降维状态观测器具有收敛速度可调的特性.最后给出了数值算例，仿真结果表明了本文方法的有效性. |
