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Adaptive and Distributed Coordination Algorithms for Mobile Sensing Networks
Consider n sites evolving within a convex polygon according to one of the following interaction laws: (i) each site moves away from the closest other...
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Flocking in Teams of Nonholonomic Agents
The motion of a group of nonholonomic mobile agents is synchronized using local control laws. This synchronization strategy is inspired by the early...
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Parameter Identifiability of Nonlinear Biological Systems
Parameters characterizing the internal behaviour of biological and physiological systems are usually not directly accessible to measurement. Their...
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Qualitative Analysis of Regulatory Graphs: A Computational Tool Based on a Discrete Formal Framework
Building upon the logical approach developed by the group of R. Thomas in Brussels, we are defining a rigorous mathematical framework to model...
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Differential Systems with Positive Variables
The variables of biological, ecological, or chemical systems are often positive, because they measure concentrations, numbers, ...We study polynomial...
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Completion Problems for Positive Matrices with Minimal Rank
Matrix completion problems studies the partial matrices, that is, a rectangular matrix some of whose entries are specified, and the remainder entries...
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Linear Positive Systems and Phase-type Representations
In this paper we try to put a bridge between the theory of phase-type distributions and the general theory of positive linear systems. The phase-type...
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Estimation and Strong Approximation of Hidden Markov Models
We give novel conditions for the existence of the limit of the normalized log-likelihood function for a finite-state continuous read-out Hidden...
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Modal Logic and Dioids
This paper presents results concerning the relations between a propositional modal logic (NK-logic) and the algebra of dioids. The technique of...
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Rational Positive Systems for Reaction Networks
The purpose of the lecture associated with this paper is to present problems, concepts, and theorems of control and system theory for a subclass of...
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Guaranteed Parameter Estimation for Cooperative Models
The parameters of cooperative models are estimated in a boundederror context, i.e., all uncertain quantities are assumed to be bounded, with known...
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Stability of Linear Systems and Positive Semigroups of Symmetric Matrices
The role of Lyapunov operators in stability theory is well-known. In this paper we present an interesting characterization of Lyapunov operators. We...
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A Characterization of Reachable Positive Periodic Descriptor Systems
Periodic descriptor system with nonnegative restrictions and its associated invariant cyclically augmented system (ICAS) are analyzed. The weakly...
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On the Positive Reachability of 2D Positive Systems
Local reachability of two-dimensional (2D) positive systems, by means of positive scalar inputs, is addressed by means of a graph theoretic approach....
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The Character of an Idempotent-analytic Nonlinear Small Gain Theorem
In this paper a general nonlinear input-to-state stability small gain theory is described using idempotent analytic techniques. The theorem is proved...
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Positive Systems with Nondecreasing Controls. Existence and Well-posedness
In the paper we consider a linear system with nondecreasing controls and a convex cost functional. Basing it on classical methods and the theory of...
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Aircraft Cabin Air Quality Trends Relative to Ground Level Standards
Aircraft cabin air quality has attracted much attention, summarized recently by a detailed examination and commentary by a U.S. National Academy of...
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Disruptive Behaviour (“Air Rage”): Possible Aetiology
The incidence of disruptive behaviour by passengers in civil aircraft is unknown due to under-reporting. The theoretical pathophysiology is...
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Human Physical Stresses at Normal and Abnormal Cabin Pressures
Atmospheric pressure is reduced as a function of altitude, thus making hypoxia, the condition of oxygen deficiency, a concern for aviation. The...
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Occupational and Public Health Risks
Symptoms reported by passengers and crewmembers on commercial aircraft are described according to individual air quality-related sources,...