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The scales on the skin of a snake are an integral part of the snake's locomotive capabilities. It stands to reason that the integration of scales into the design of robotic snakes would open new properties to exploit. In this work, we present a robotic snake design that incorporates rigid scales in the casing of each module. To validate the impact of the scales, locomotion is tested under three conditions:...
The human immunodeficiency virus (HIV) infection, that causes acquired immune deficiency syndrome (AIDS), is a dynamic process that can be modeled via differential equations. By varying the drug effect in the model, we show how to drive any initial state into an equilibrium called the long-term nonprogressor, where the infected patient does not develop the symptoms of AIDS. In this paper we extend...
We investigate a control method for HIV dynamics to boost the immune response using a model-based approach. The idea of impulsive control is discussed using a mathematical model. The HIV dynamic model includes the pharmacokinetics and pharmacodynamics of antiretroviral drugs. Consequently, the dosage of drugs are the control inputs. As they are administrated at discrete time instants this naturally...
We investigate a control method for disease dynamics, such as HIV and malaria, to boost the immune response using a model-based approach. The idea of state jump is introduced and discussed using hybrid models. To implement the control idea we suggest physically available methods for each disease case. The studies on malaria model are supported by recently reported experimental data.
We investigate control of the state of infection dynamics without explicit modeling of the immune system. By using constant drug dosage we prove almost global asymptotic stability of an equilibrium with assumption of zero immune system, and then by varying the drug effect we study how to drive any initial state into a region which represents desirable clinical conditions. These results can be used...
The human immunodeficiency virus infection, that causes acquired immune deficiency syndrome, is a dynamic process that can be modeled via differential equations. In the literature of control applications, model-based control methods to boost the immune system by means of drug scheduling have been reported. The control purpose is to steer the system to an equilibrium condition, known as long-term nonprogressor,...
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