Results 211 to 220 of about 1,713,872 (237)

Comparison of null-space and minimal null-space control algorithms

Robotica, 2007
SUMMARYThis paper deals with the stability of null-space velocity control algorithms in extended operational space for redundant robots. We compare the performance of the control algorithm based on the minimal null-space projection and generalized-inverse-based projection into the Jacobian null-space.
Bojan Nemec, Leon Zlajpah, Damir Omrcen
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Simultaneous null controllability with constraint on the control

Applied Mathematics and Computation, 2013
This paper is concerned with the simultaneous null controllability with constraint on the control, for a system of coupled linear heat equations. First, we show that, by means of a change of variable, a system of two linear heat equations with a same control can be rewritten in the form of a system of linear heat equations with a control function ...
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Null-Controllability of a System of Linear Thermoelasticity

Archive for Rational Mechanics and Analysis, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lebeau, Gilles, Zuazua, Enrique
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Adaptive null steering beamformer implementation for flexible broad null control

Signal Processing, 2011
An implementation of adaptive null steering beamformer for flexible broad null control, based on constrained recursive updating of array response zeros and spatial FIR filters, is presented. The design allows the beamformer to form broad nulls and control their widths readily. The new method is of great advantage for sensor array in which the number of
Shuang Leng, Wee Ser
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Null Controllability of a Fluid-Structure System

SIAM Journal on Control and Optimization, 2013
We study a coupled fluid-structure system. The structure corresponds to a part of the boundary of a domain containing an incompressible viscous fluid. The structure displacement is modeled by an ordinary differential equation. We prove the local null controllability of the system when the control acts on a fixed subset of the fluid domain.
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Null Controllability of the Free Surface of a Liquid in a Container

SIAM Journal on Control and Optimization, 2004
Summary: This paper deals with the well-posedness, boundary observability, and boundary controllability of a model of lateral sloshing in moving containers. It begins with a short review of the lateral sloshing theory, then the problem is solved by combining the Fourier method and the Hilbert uniqueness method of J.-L. Lions.
Komornik, Vilmos, Loreti, Paola, Mazzini, Leonardo   +2 more
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Null Controllability of Fractional Dynamical Systems with Constrained Control

Fractional Calculus and Applied Analysis, 2017
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Joice Nirmala, Rajagopal, Balachandran, Krishnan, Trujillo, Juan J.   +2 more
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Tests of the Null Hypothesis in Case-Control Studies

Biometrics, 1984
The relative merits of the likelihood ratio statistic, the Wald statistic, and the score statistic are examined by an empirical evaluation based on matched case-control data. A mixture model for the relative-odds function is used. The likelihood ratio statistic is relatively constant for reasonable values of the mixture parameter, but the Wald ...
Lustbader, Edward D., Moolgavkar, Suresh H., Venzon, David J.   +2 more
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On the null-controllability of a radiative heat transfer system

European Journal of Control, 2021
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Mohamed Ghattassi, Takéo Takahashi
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Null Controllability of Semilinear Delay Control Systems

International Journal of Dynamical Systems and Differential Equations
Summary: In this paper, the null controllability results for a class of semilinear delay control systems have been established. The fundamental semigroup is generated by using the perturbation due to the linear delay operator, which defines the fundamental solution of the system.
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