Publications de Daniel Garcia | EPFL Graph Search

PHD3 Loss Promotes Exercise Capacity and Fat Oxidation in Skeletal Muscle

Rapid alterations in cellular metabolism allow tissues to maintain homeostasis during changes in energy availability. The central metabolic regulator acetyl-CoA carboxylase 2 (ACC2) is robustly phosphorylated during cellular energy stress by AMP-activated ...

Cell Press2020

A 1D elastic plastic damage constitutive law for bone tissue

Alain Curnier, Daniel Garcia

Motivated by applications in orthopaedic and maxillo-facial surgery, the mechanical behaviour of cortical bone in cyclic overloads at physiological strain rates is investigated. To this end, a new one-dimensional rate-independent constitutive model for com ...

2010

Robust PID controller tuning with specifications on the infinity-norm of sensitivity functions

Roland Longchamp, Daniel Garcia, Alireza Karimi

An overview of the recent works on proportional integral derivative (PID) controller tuning methods based on specifications on the infinity-norm of the sensitivity functions is presented. The presented approach is very flexible relative to the controller s ...

2007

Auto-ajustement de régulateurs PID robustes dans le domaine fréquentiel

Daniel Garcia

This work considers the adjustment of proportional-integral-derivative (PID) controllers. Because of their very simple structures, this kind of controllers are very appreciated, and used abundantly by the industrial community. The restricted number of the ...

EPFL2006

Data-Driven Controller Tuning Using Frequency Domain Specifications

Roland Longchamp, Daniel Garcia, Alireza Karimi

A model-free PID controller tuning approach is presented in this paper. The method can handle different stability and performance indicators in the frequency domain. The phase margin, gain margin, crossover frequency and more advanced indicators which are ...

2006

PID controller design with constraints on sensitivity functions using loop slope adjustment

Roland Longchamp, Daniel Garcia, Alireza Karimi

This paper presents a PID controller design method for stable minimum- phase systems. The approach is similar to the one proposed in the so-called modified Ziegler- Nichols method, where only one point on the frequency response of the plant is measured and ...

2006

PID Controller Design with Specifications on the Infinity-Norm of Sensitivity Functions

Roland Longchamp, Daniel Garcia, Alireza Karimi

A controller design method using a frequency criterion is proposed in this paper. The frequency criterion is defined as the weighted sum of squared errors between the specified and computed values of the design parameters. These are the infinity-norm of th ...

2005

PID Controller Design for Multivariable Systems Using Gershgorin Bands

Roland Longchamp, Daniel Garcia, Alireza Karimi

A method to design decentralized PID controllers for MIMO systems is presented in this paper. Each loop is designed separately, but the Gershgorin bands are considered to take interactions into account. The method uses different design parameters: The infi ...

2005