Articles techniques et présentations

Here we calculate opto-mechanically induced Surface Acoustic Waves upon a silica microresonator using COMSOL. Using conservation of momentum, we show both analytically and numerically that the photonphonon interaction within the resonator cavity causes a moving train of electrodes - a ... En savoir plus

Piezoelectric energy harvester converts mechanical vibrations into electrical energy via piezoelectric effect. The geometry of the piezoelectric cantilever beam greatly affects its vibration energy harvesting ability [1]. In this paper a MEMS based energy harvester with a non-traditional ... En savoir plus

An experimental program has been developed, with the purpose of evaluating the reliability in building diagnosis and characterization of an integrated analysis of several parameters related to heat transfer process through the building material. The Infrared Thermography Technique (IRT) ... En savoir plus

Thermography measurements on metallic thin films are challenging due to reflections from the environment. We present a thin "gold black" absorption layer to deal with this issue. A multiphysics model is introduced to correct the experimentally obtained data for undesirable heat transfer ... En savoir plus

This paper presents a freestanding waveguide to achieve the goal of detecting anastomosis leakage after colon surgery. The freestanding part is a thin membrane consisting of TiO2 rib and SiN ridge. This freestanding waveguide is designed both mechanically and optically to maintain ... En savoir plus

Introduction: One of the main characteristic of the superconductors is its diamagnetic response of applied magnetic fields. The superconductors refuse the penetration of magnetic field into its interior, it is the well know Meissner effect, B=0 into the superconductor sample. However ... En savoir plus

The paper presents a method of extraction of electrical equivalent circuit of a one port surface acoustic wave (SAW) resonator from the results of simulation based on finite element method (FEM) using COMSOL Multiphysics software. A one port SAW resonator consists of large number of ... En savoir plus

Laser percussion drilling is widely used in the aerospace industry to produce cooling holes in jet engine components. This process is a thermal, contact-free process which involves firing a sequence of focused optical pulses onto a target material [1-4]. During each optical pulse, the ... En savoir plus

There is limited option for non-intrusive flow measurement of liquid metals at high temperature. Liquid metal flowing in a conduit along with the transverse magnetic field induces emf in the liquid metal. The emf developed; which has linear dependency on flow velocity; can be used for ... En savoir plus

In solid mechanics, there is considerable interest in achieving “invisibility”. The applications in mechanics include protection of structures and parts of structures from potentially harmful transient waves and steady state vibrations. A suggested large scale application is that ... En savoir plus