Results 231 to 240 of about 2,073 (254)

Differential estimation in dynamic RFID systems

2013 Proceedings IEEE INFOCOM, 2013
Efficient estimation of tag population in RFID systems has many important applications. In this paper, we present a new problem called differential cardinality estimation, which tracks the population changes in a dynamic RFID system where tags are frequently moved in and out.
Qingjun Xiao, Bin Xiao, Shigang Chen
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Dynamical Systems and Differential Equations

2015
In this chapter, we review some basic topics in the theory of ordinary differential equations from the viewpoints of the global geometrical approach which is a base to develop the energy flow analysis for NDS. In the first two sections the review of basic theory for dynamical systems and differential equations is rapid.
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Standard Systems of Discrete Differentiable Dynamical Systems

Journal of Difference Equations and Applications, 2004
The theory of Liao standard systems of difference equations  for discrete differentiable dynamical systems over compact manifolds has been developed. Some relations between the topological structures of their phase portraits and that of their corresponding linear systems have been presented as well.
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Differential Forms and Dynamical Systems

2007
One of the modern geometric views of dynamical systems is as vector fields on a manifold, with or without boundary. The starting point of this paper is the observation that, since one-forms are the natural expression of linear functionals on the space of vector fields, the interaction between the two makes some aspects of the study of equilibria and ...
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Differential Equations and System Dynamics

2014
In Chapter 5, we saw how we can simulate a continuous process given by the update equations which define the rate of change of the process in terms of the current and previous values of the process. A real world system is a combination of interdependent processes which may be hidden or visible to the outside world.
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Differential Equations and Dynamical Systems

2012
Henri Poincare presented his thesis to the Faculte des Sciences of the University of Paris to obtain the degree of doctor of mathematical sciences. The title: “Sur les proprietes des fonctions definies par les equations aux differences partielles.” It was accepted on August 1, 1879, by a committee consisting of J.-C. Bouquet (chairman), P.-O.
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Dynamics of a system of nonlinear differential equations [PDF]

Siberian Mathematical Journal, 2007
This is a qualitative analysis of a system of two nonlinear ordinary differential equations which arises in modeling the self-oscillations of the rate of heterogeneous catalytic reaction. The kinetic model under study accounts for the influence of the reaction environment on the catalyst; namely, we consider the reaction rate constant to be an ...
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Ordinary Differential Equations: Dynamical Systems

2007
Ordinary differential equations (ode) are differential equations for functions which depend on one independent variable only. These ‘odes’ are simpler than partial differential equations which contain more than one independent variable. In almost all models or simulations independent variables are either time and/or space.
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Control of the Dynamics of a System with Differential Constraints

Journal of Computer and Systems Sciences International, 2019
We propose a method for solving the control problem of a system with allowance for the dynamics of actuation mechanisms. The aim of the control and kinematic properties of the system are determined by the holonomic and nonholonomic constraints imposed on the phase coordinates of the control plant.
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Introduction: Differential Equations and Dynamical Systems

1983
In this introductory chapter we review some basic topics in the theory of ordinary differential equations from the viewpoint of the global geometrical approach which we develop in this book. After recalling the basic existence and uniqueness theorems, we consider the linear, homogeneous, constant coefficient system and then introduce nonlinear and time-
Philip Holmes, John Guckenheimer
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