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81.
一类含参数的分块对称矩阵的正定性及应用 总被引:3,自引:0,他引:3
金朝永 《高校应用数学学报(A辑)》2001,16(1):107-113
首先给出一种判断分块对称矩阵正定的方法,提供了确定一组尽可能小的参数,使一类含参数的分块对称矩阵正定的简单算法,然后,将其结果用于研究线性定常大系统的分散镇定性,得到了一类可分散镇定的线性大系统,并给出了相应的分散镇定算法,同文献中提供的方法相比,该算法不仅扩大了所考虑的系统范围,而且不会引起过高的反馈增益,同时还简单易算。 相似文献
82.
C. Mignosi M. Bordovsky C. N. Morgan I. H. White R. P. Griffiths N. A. J. Lieven 《Fiber and Integrated Optics》2001,20(1):71-81
A novel low cost, non-contact optical vibration sensor requiring only a single optoelectronic component has been developed. It consists of a continuous wave semiconductor laser operating with external optical feedback. Vibrations have been measured at frequencies of up to 600 Hz with target reflectivities lower than 5%. When calibrated, the sensor demonstrates satisfactory output for submicron vibration amplitudes. Accuracies of 0.2% have been obtained over a range of 1 mm. 相似文献
83.
84.
Riku Kudou 《代数通讯》2020,48(6):2358-2368
85.
We consider an artificial neural network where the signal transmission is of a digital (McCulloch-Pitts) nature and is delayed due to the finite switching speed of neurons (amplifiers). For a particular connection topology, we show that all solutions starting from nonoscillatory initial states will be eventually synchronized and stabilized at a unique limit cycle, and hence such a network can be used as a synchronized oscillator. 相似文献
86.
87.
It is well known that MTL satisfies the finite embeddability property. Thus MTL is complete w. r. t. the class of all finite MTL‐chains. In order to reach a deeper understanding of the structure of this class, we consider the extensions of MTL by adding the generalized contraction since each finite MTL‐chain satisfies a form of this generalized contraction. Simultaneously, we also consider extensions of MTL by the generalized excluded middle laws introduced in [9] and the axiom of weak cancellation defined in [31]. The algebraic counterpart of these logics is studied characterizing the subdirectly irreducible, the semisimple, and the simple algebras. Finally, some important algebraic and logical properties of the considered logics are discussed: local finiteness, finite embeddability property, finite model property, decidability, and standard completeness. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
88.
89.
M. Tadi 《Applied Mathematics and Optimization》1997,35(3):331-351
This paper is concerned with modeling and control of a multicomponent distributed-parameter structure. General results from
the theory of infinitedimensional systems are used to pose an LQR-control problem for the structure. Different variations
of the structure are considered and, in particular, approximation schemes for two forms of the structure are presented in
detail. Responses of the system to an elastic initial condition are presented. It is shown that convergent state feedback
control laws can be obtained which result in significant suppression of vibrations and unwanted displacements throughout the
structure. 相似文献
90.
该文证明了受内反馈控制的phase-field系统的解在某些条件下是稳定的. 相似文献