查询词典 quasi linear

High-frequency continuous modulation on the high-power semiconductor laser is required in our ladar system. The theory and driving methods of the semiconductor laser is summarized in this article. Two kinds of driving circuit including linear power amplifier and resonance power amplifier are designed for continuous and quasi continuous modulated laser.

针对研制的无扫描激光雷达系统，需要对大功率半导体激光器进行高频连续调制，本文总结了半导体激光器的原理和驱动方法，并针对连续和准连续调制大功率激光器的特点分别设计了两套驱动电路，包括线性功率放大驱动电路和谐振功率放大驱动电路。

The strain and temperature resolution is 30με and 3℃, respectively. 6. Several typical demodulation method using optical filters, including quasi delta function demodulation, linear function demodulation, matrix function demodulation and trigonometric function demodulation, is presented and discussed. We research the matched-grating demodulation and a high wavelength resolution of 2. 6pm is reached.

分析和归纳了几类较为典型的滤波解调制方法（包括：类δ函数解调制、线性函数解调制、矩形函数解调制和三角函数解调制），对这几类方法如何实现做了简单讨论，并对匹配光栅解调解调技术进行了理论分析和实验研究，这种检测方案的波长分辨率可达2.6pm。

The non linear quasi static analytic method is used to calculate the relationships between the horizontal offset,vertical set down of the TLP body,the change of tendon tensions in the leg and external force acting on TLP.

通过分析给出张力腿平台本体水平偏移、垂直下沉、张力腿内张力变化、水平外力等重要参数之间的相互关系，可初步进行定性和定量分析，对平台的初步设计有一定参考作用

Based on the information-scheduling models and time-delay models of networked control system, state-estimate-based and parity-relation-based fault diagnosis approaches and passive fault-tolerant control such as integrity control for networked control systems are presented; 2 we presented new models, Quasi T-S models, for linear and nonlinear networked control systems with random time delays, and the corresponding fault diagnosis and fault-tolerant control approaches; 3 With all these fault diagnosis theory presented, active fault tolerant control approaches are developed directly for networked control systems; 4 Some analysis, design and optimization theory for networked control systems are presented., such as robust control, LQ guaranteed cost control, modeling and control for stochastic networked control and integrated optimization etc.

给出了诸如网络化控制系统的鲁棒控制、LQ保成本控制、联合优化设计、随机网络化控制系统的建模与控制等方面的结果。

According to the theory results,the two orthogonal polarized states of the fundamental mode become non-degenerate in this fiber and modal fields are quasi rectangular with appearing strongly linear polarization.And,the birefringence of the fiber was found to be due to the asymmetry of cladding structure.If the rate η between lognitudinal and transverse holes-spacing is reduced,the birefringence will increase strongly.

结果发现，矩形点阵微结构聚合物光纤基模两个正交偏振态不再简并，模场呈现类矩形且具有较强的线偏振特性；该光纤模式双折射产生于包层孔结构分布的不对称性，减小包层纵向孔间隔和横向孔间隔之比η值，双折射明显增强，适当调节η，可在更宽频带范围内实现高双折射单模运行。

Next, it has used a non-linear elastic analysis method and setup an economical elasticity of fractal dimension model. By means of the model, the paper has given a positive analysis on the long-term fluctuation of the national economic growth for both countries, which it has fund that some existed quasi periodic rules and illustrated macroeconomic policy mechanism under the uncertainty conditions.

其次，利用了非线性弹性分析的方法，建立了经济弹性分维模型对中美两国经济增长的长期波动情况加以实证研究，发现了投资与财政对于两国长期经济增长的拟周期性的一些规律，揭示了不确定性条件下存在的宏观政策机制。

Based on the linear theory of gyrotron, and using the Laplace transformation and residue theorem, the kinetic theory of a novel gyrotron with three-mirror quasi-optical cavity is developed within the framework of the linearized Vlasov-Maxwell equations.

基于回旋管线性理论，运用Laplace变换和留数定理的方法，在线性Vlasov-Maxwell方程组的框架下，研究了特殊三反射镜准光腔回旋管的动力学理论。

Therefore, an un-derstanding of the maintenance of the stationary waves is a prereq-uisite for a thorough understanding of the low frequency transients.The Eliassen-Palm cross-section and the three-dimensional waveactivity flux, which was derived by Plumb (1985) for the linear quasi-geostrophic stationary waves in a zonal flow, are ...

分析结果表明，Plumb通量和EP剖面图，不仅可以用来诊断波作用在三维空间的传播、波动与纬向平均气流之间的相互作用，而且也可以用来诊断非线性作用的显著性，在利用它们对于观测资料进行诊断分析时，应当充分注意到非线性作用的影响。

The course covers the following topics: overview of quantitative research designs including survey research, experimental and quasi-experimental research, and correlational research; measuring of reliability and validity; sampling, hypothesis testing and statistical significance, correlational analysis, tests of mean differences, tests of frequencies, analysis of variance, linear regression, and multiple regression.

课程主要容包括问卷调查法，实验研究法，相关研究法，抽样方法，测验信度与效度，X2考验，相关分析，t考验，变异数分析，单回归，多元回归。

Furthermore, the data of falling weight deflectometer and the system identification method are jointly used in conjunction with the proposed procedure for estimating material properties from responses of multi-slabs on foundation. The analysis is based on quasi-static linear elastic, dynamic frequency domain fitting and dynamic time domain fitting.

然后，将落锤式弯沉仪所记录的输入和输出值时程曲线，根据系统识别原理和灵敏度分析理论，建立材料参数的拟静力反演分析方法、频域反演分析方法和时域反演分析方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。