In the inverse problem en electrocardiology, the goal is to recover electrophysiological activity in the heart without measuring directly on its surface (without using catheter interventions). Note that today the inverse computation is frequently used by solving the quasi-static model. This model doesnt take into account the heart dynamic in time and may result in considerable errors in the rec...

This chapter presents the study and modelling of KR 6 KUKA Robot, of the Robotics Laboratory, Federal University of Rio de Janeiro, see fig 1. The chapter shows the CAD model (Computer Aided Design), the direct kinematics, the inverse kinematics and the inverse dynamical model. The direct kinematic is based in the use of homogeneous matrix. The inverse kinematics uses the quadratic equations mo...

Following extensive development over the past two decades, techniques of inverse simulation have led to a range of successful applications, mainly in the fields of helicopter flight mechanics, aircraft handling qualities and associated issues in terms of model validation. However, the available methods still have some well-known limitations. The traditional methods based on the Newton-Raphson a...

In 2004, at the Gravity, Geoid and Space Missions (ggsm04) conference in Porto, Portugal, a joint meeting of the International Association of Geodesy (IAG) Working Groups on Inverse Problems and Global Optimization and Satellite Gravity Theory took place. It was then recognized that gravity modelling from satellite, airborne and terrestrial data, and today’s application of gravity models in rel...

The aim of this work is the development of a localisation algorithm of the bioelectric sources using surface electromyographic (SEMG). In this paper, a feasibility study is presented : we simulate the resolution of the SEMG inverse problem. First, we developed a program modelling the SEMG signal of the biceps brachii. To resolve the inverse problem, the localisation algorithm uses an estimation...

Metabolic P grammars are a particular class of multiset rewriting grammars introduced in the MP systems’ theory for modelling metabolic processes. In this paper, a new algebraic formulation of inverse dynamical problems, based on MP grammars and Kronecker product, is given, for further motivating the correctness of the LGSS (Log-gain Stoichiometric Stepwise) algorithm, introduced in 2010s for s...

TMH-QPSR 2/I 996 The voice source for different voice qualities has been investigated. The glottal signal has been attained using inverse filtering of the speech signal. Two different methods for modelling the results are demonstrated. An acoustic model, the LF voice source model, h s been fitted to the inverse filtered waveform and the LF parameters have been used to describe the voice pulse. ...