This paper presents a new approach to solve synchronization problem of a large class of discrete chaotic systems. The chaotic systems can be reformulated as an appropriate class of linear parameter varying (LPV) systems. Then, based on the LPV representation, a neural network observer-based approach is proposed to solve the synchronization problem. The simulation results show the advantages of ...

BACKGROUND The most-used protease-inhibitor in children is Lopinavir-ritonavir (LPV/r), which provides durable suppression of viral load and increases CD4+T-counts. This study describes the virological outcome of the HIV-1-infected paediatric population exposed to LPV/r during 15 years in Spain. METHODOLOGY Patients from the Madrid Cohort of HIV-1-infected-children and adolescents exposed to ...

of results LPV/r was given to 46.7%, whereas 53.3% received NVP. Average patient age was 42 years (range, 19-80), 23.4% were women and 72.5% Caucasians. Co-infection with hepatitis viruses was present in 34.1% of all patients. The first most frequently used NRTI backbone was zidovudine-lamivudine (84.4% all patients; 38.3% LPV/r; 46.1% NVP). An alteration on NRTI backbone without studydrug disc...

INTRODUCTION In 2011 Uganda recommended boosted atazanavir (ATV/r) as the preferred PI for second line due to once daily dosing, replacing aluvia (LPV/r) (1, 2). The evidence was based on the BMS O45 trial, of LPV/r vs ATV/r was performed in a high-income setting, on patients with prior PI use and resistance testing (2, 3). There are no RCTs or observational studies comparing use of ATV/r with ...

This paper develops a new method for the synthesis of Linear Parameter-Varying (LPV) controllers in discrete time. LPV plants under consideration have a Linear Fractional Transformation (LFT) representation. In contrast to earlier results which are restricted to singleobjective LPV problems the proposed method can handle a set of H2/H∞ specifications that can be defined channel-wise. This pract...

In semi-active suspension control, comfort and road holding are two essential but conflicting performance objectives. In a previous work, the authors proposed an LPV formulation for semi-active suspension control of a realistic nonlinear suspension model where the nonlinearities (i.e the bi-viscous and the hysteresis) were taken into account; an H∞/LPV controller to handle the comfort and road ...

In a multicentre, open-label, clinical trial, 43 patients virologically suppressed while receiving a standard triple antiretroviral therapy were randomized (1:1:1) to switch to monotherapy with darunavir/ritonavir (DRV/r-MT arm), monotherapy with lopinavir/ritonavir (LPV/r-MT arm) or to continue on the ongoing regimen (cART arm). The proportion (95% CI) of patients with virological success (Sna...

Abstract: In standard linear fractional representation (LFR)-based linear parameter-varying (LPV) modeling the size of the (diagonal) scheduling block depends on the number of scheduling parameters and their repetitions, which in turn influences both the complexity of synthesis conditions and the computational load during online implementation of LPV controllers. A modeling framework motivated ...

This paper focuses on developing a linear parameter varying (LPV) controller for an airbreathing hypersonic vehicle using a velocity-based approach. The design of flight control systems for airbreathing hypersonic vehicles is a highly challenging task due to the unique characteristics of the vehicle dynamics. Motivated by recent results on a velocity-based linearization approach and LPV control...

This paper presents a comparative study of three Linear Parameter Varying (LPV) modeling approaches and their application to the longitudinal motion of a Boeing 747 series 100/200. The three approaches used to obtain the quasi-LPV models are Jacobian linearisation, state transformation, and function substitution. Development of linear parameter varying models are a key step in applying LPV cont...