Control Systems

Robust Delay-Dependent Stability Criteria for Time-Varying Delayed Lur’e Systems of Neutral Type
This paper deals with the problem of the robust delay-dependent stability of uncertain Lur’e systems with neutral-type time-varying delays. By constructing a set of Lyapunov–Krasovskii functional, less conservative robust stability criteria are derived in terms of linear matrix inequalities. The contribution in reduced conservation of the proposed stability criteria relies on the reciprocal...


A 10-Bit, 12 ps Resolution CMOS Time-to-Digital Converter Dedicated to Ultra-Fast Optical Timing Applications
This paper reports the design of a 10-bit, high-resolution time-to-digital converter (TDC) based on Vernier residues amplification which is a novelty. This TDC architecture allows the measurement of wide time intervals with high picosecond-range resolution. The key benefits of the proposed TDC are that it reduces conversion jitter and provides more design flexibility to enhance matching perform...
Controllability and Observability of Singular Boolean Control Networks
Controllability and observability of singular Boolean control networks are proposed in this paper from its algebraic form via semi-tensor product. First, the input-state incidence matrix of singular Boolean control networks is presented based on which the generalized input-state incidence matrix is also defined. Second, a necessary and sufficient condition for the controllability of singular Bo...


Small angle detectors for study diffractive processes with CMS
The approach and detectors for diffractive physics based on two current projects—Forward Shower Counter (FSC) and Proton Precision Spectrometer (PPS) are presented. FSC system consists of six (3+3) Stations of scintillator counters, which surround closely the beam pipes along 59 m ...
Performance simulation of a MRPC-based PET imaging system
The less expensive and high resolution Multi-gap Resistive Plate Chamber (MRPC) opens up a new possibility to find an efficient alternative detector for the Time of Flight (TOF) based Positron Emission Tomography, where the sensitivity of the system depends largely on the time resolution of the detector. In a layered structure, suitable converters can be used to increase the photon detection ef...


Uniform Decay Rates for Viscoelastic Dissipative Systems
In this paper, we consider the wave equation with both weak frictional damping and viscoelastic damping acting simultaneously and complementarily in the domain. We establish an explicit and general decay rate result, using some properties of the convex functions. Our result is obtained without imposing any restrictive growth assumption on the frictional damping term and strongly weakening the u...
Relativity with Respect to Measurement: Collapse and Quantum Events from Fock to Cramer
Some observations are presented starting with the well-known article by Vladimir Fock “Quantum Physics and Philosophical s”, published in 197In this article, which summarizes for Western readers a long and complicated reflection of the foundations of quantum mechanics (QM), Fock illustrates his “minimal” interpretation of this theory. By minimal, we mean that it only uses concepts relat...

Simultaneous time-varying actuator and sensor fault reconstruction based on PI observer for LPV systems
We consider problems of actuator and sensor fault reconstruction simultaneously for linear parameter varying systems expressed in polytopic forms. By extending the sensor fault as an auxiliary state, a polytopic unknown input proportional-integral observer in which the actuator fault signals are assumed to be time varying is developed to estimate the system states and the actuator and sensor fa...
Amblyopie strabique et diploplie
Que faire devant un patient adulte strabique présentant une diplopie pénible et parfois invalidante? Comment appréhender les éléments sensoriels et moteurs pour soulager le patient? What should be done when faced with an adult suffering from strabismus and presenting with diplopia causing pain and occasionally handicapping? How can one apprehend the sensorial and motor elements and bring r...

Compensation de la presbytie par LASIK : Principes et Indications
La compensation de la presbytie par LASIK (presbyLASIK) est basée sur la modification réfractive de la cornée qui vient compenser la perte d’accommodation liée à la diminution de l’élasticité du cristallin et/ou de la puissance du complexe ciliaire (muscles et zonule). Il existe sur le marché plusieurs patterns de traitements proposés par l’industrie. Les trois principaux étant...
Les sujets présentant une hétérophorie verticale physiologique sont moins stables que les sujets orthophoriques
En dissociant les images rétiniennes, une orthophorie et une hétérophorie verticales (OV et HV) correspondent respectivement à l’absence ou la présence d’une déviation de l’axe visuel verticalement, déviation annulée en vision binoculaire. L’HV physiologique existe. Expérimentalement induite, elle influence le contrôle postural. L’objectif de ce travail est de comparer la st...

A bit rate adaptation model for 3D video
Although a significant research effort has been carried out for investigating 3 Dimensional (3D) video display, transmission, coding, etc, the same is not applicable for 3D video adaptation. In addition, ambient illumination, spatial resolution and 3D video content related contexts have not been particularly considered in a hybrid manner for the 3D video adaptation purpose in literature to date...
A new optimal linear quadratic observer-based tracker under input constraint for the unknown system with a direct feed-through term
This paper develops a new optimal linear quadratic observer-based tracker with input constraint for the linear unknown system with a direct transmission term from input to measured output. The off-line observer/Kalman filter identification method is used to determine the linear sampled-data model with a direct feed-through term. On the basis of this model, a high-gain optimal linear quadratic a...
CMS RPC tracker muon reconstruction
A new muon reconstruction algorithm is introduced at the CMS experiment. This algorithm reconstructs muons using only the central tracker and the Resistive Plate Chamber (RPC). The aim of this work is to study how a muon reconstructed only with tracker and RPC information would perform compared to the standard muon reconstruction of the CMS detector. The efficiencies to reconstruct and identify...
Manufacture and performance of the thermal-bonding Micromegas prototype
The micro-mesh gaseous structure (Micromegas) has been significantly developed since it was proposed in 1995 at Saclay (France). Some new construction methods different from ``bulk'' etching technique are under R&D. Here we report the results of several prototypes manufactured with thermal-bonding method, The details of this method and the performances of the chambers are presented. For a 200 ...