L' art de péter : essay théori-physique et méthodique

[Pierre Thomas Nicolas Hurtaut]

Éléments de géologie et d'hydrographie : ou résumé des notions acquises sur les grandes lois de la nature, faisant suite et servant et complément aux éléments de géographie physique et de météorologie ; avec huit planches gravées

par H. Lecoq

Nouvelles considérations sur les rapports du physique et du moral de l'homme

ouvrage posthume de Maine de Biran. Publ. par Cousin

L' Art De Naviger Dans Les Airs : Amusement physique et geometrique ; précedé d'un Mémoire sur la nature & la formation de la grêle, dont il est une conséquence ultérieure

Par le R. P. Jos. Galien ...

Système de la nature, ou des lois du monde physique et du monde moral

par Mirabaud

J. Ebbeler, Disciplining Christians: Correction and Community in Augustine’s Letters, Oxford University Press, New York 2012, 254 pp. ISBN 9780195372564.

Fil: Correa, Soledad. Universidad Nacional de Rosario

Correction of systematic errors in Wide Area Multilateration

This work presents a method to estimate and correct slow time-dependent position errors due to non perfect ground station synchronization and tropospheric propagation. It uses opportunity traffic emissions, i.e. signals transmitted from the aircrafts within the coverage zone. This method is used to overcome the difficulty of installing reference beacons simultaneously visible by all the base stations in a given Wide Area Multilateration (WAM) system.

Fast Correction of Tiled Display Systems on Planar Surfaces

A method for fast colour and geometric correction of a tiled display system is presented in this paper. Such kind of displays are a common choice for virtual reality applications and simulators, where a high resolution image is required. They are the cheapest and more flexible alternative for large image generation but they require a precise geometric and colour correction. The purpose of the proposed method is to correct the projection system as fast as possible so in case the system needs to be recalibrated it doesn’t interfere with the normal operation of the simulator or virtual reality application. This technique makes use of a single conventional webcam for both geometric and photometric correction. Some previous assumptions are made, like planar projection surface and negligibleintra-projector colour variation and black-offset levels. If these assumptions hold true, geometric and photometric seamlessness can be achievedfor this kind of display systems. The method described in this paper is scalable for an undefined number of projectors and completely automatic.