GIRONA500 AUV explores “La Lune”, a french wreck of the XVII century

During the last week of August CIRS UdG-Team has been exploring an ancient wreck in the coast of Toulon. “La Lune”,  was a ship of the french royal navy of the young king Louis XIV, sunken on November the 8th 1664 with about 800 men on board. The wreck lays around 90 m. depth in the Coast of Toulon, and it is very well conserved. An optical survey reveals that its canons and other utensiles are still in very well conditions.

CIRS UdG-Team has been contracted by a documentary producer to set up a preliminary optical cartography of the site to be used for the documentary under production.

The survey took place the last week of August on board the “Bon Pigall” boat belonging to the Argomaris private foundation. The Work was supervised by Michel l’Hour director of the DRASSM (Département des recherches archéologiques subaquatiques et sous-marines). Two robots were used, a Lynx ROV property of Argomaris as well a GIRONA500 AUV property of CIRS. The last one was endowed with a multibeam sonar profilers as well as with two stereo pairs, one using a bumblebee stereocam and the other one, a CIRS creation using two 21Mp (each) photographic cameras which were able to gather wreck images of astonishing quality.

Source: Pere Ridao

CIRS UdG-Team / ViCOROB

Optical cartography / ViCOROB

GIRONA500 AUV / ViCOROB

Reducimos la actividad por periodo de vacaciones

"Tomosíntesi (3D x-ray) és l'estrella en la detecció precoç del càncer de mama"

Del 8 al 11 de juliol del 2012 ViCOROB va assistir a l’onzè Taller Internacional en Mamografía Digital (IWDM’12) a la ciutat de Philadelphia, Estats Units.

L' IWDM està dissenyat com una plataforma per presentar els últims avenços tecnològics i les experiències clíniques en imatge mèdica, incloent-hi: la mamografía digital, la tomosíntesi, TC, RM ultrasò, òptica i imatge molecular. A més a més, del processament d’imatges assistides per computador.

Van assistir-hi diversos grups compromesos amb el desenvolupament tecnològic en la detecció primerenca i el tractament del pacient després del càncer de mama: investigadors, metges i representants de la industria van ser presents a Philadelphia durant els dies que va durar el taller.

ViCOROB va assistir-hi de la mà d’en Dr. Robert Martí i el Dr. Joan Martí qui va afirmar, a través del seu perfil de twiter (@joanm63), que: “la tomosíntesi (3D x-ray) és l’estrella en la detecció precoç del cáncer de mama”.

Què és la Tomosíntesi digital?

La tomosíntesis digital (TD) és una tècnica d'imatge tridimensional que es basa en una modificació de la mamografia digital. Per mitjà d'aquest mètode, generem una imatge tridimensional de la mama per mitjà de raigs X. En l'actualitat, aquest mètode s'utilitza únicament en la investigació.

El sistema consta d'un tub de raigs X instal·lat en un sistema rotacional que gira al llarg d'un determinat àngle. Aquest moviment permet prendre de 60 a 70 projeccions en 2D amb l'objectiu de crear tomogrames d'1mm en qualsevol pla, la qual ens permet realizar la reconstrucció anatòmica de la mama en 3D.

El poster presentat a les jornades /ViCOROB

Caldera 2012, Santorini (Greece)

Principle Investigator: Dr. Javier Escartin (Centre National de la Recherche Scientifique (CNRS)

Hydrothermal activity is one of the main processes that facilitate both heat and chemical fluxes from the deep Earth to the overlying fluid envelopes. Studies on the chemical composition of these volatiles (fluid and gas) will provide vital constraints on:

a) Origin of the magmas at depth, composition of the mantle, and the relative input from the subducting slab (crust and sediments);

b) Processes of mixing and degassing within the magma chamber; and

c) Contribution of the emitted gases to the Earth's atmosphere.

These studies are at the core of the proposed cruise, which involves an international and multidisciplinary team, including the Institut de Physique du Globe de Paris (France), the University of Girona (Spain), the Woods Hole Oceanographic Institute (USA), the University of Athens (Greece) and the support of the Hellenic Centre of Marine Research infrastructure.

Our target is the Santorini Caldera (Hellenic arc) and the hydrothermal areas that it hosts at depths up to ~400 m bsl. R/V "Aegaeo" will host the "Girona 500" AUV which will survey different zones of the caldera, both over known sites and at unexplored zones. Microbathymetric, side scan sonar and 3D visual maps will be produced, along with in-situ chemical analysis from a mass spectrometer installed on the AUV. The heavy load manipulation capabilities of the HOV "Thetis" and ROV "Max Rover" will support the deployment of temperature probes and perform water, gas and rock sampling.

The goals of the proposal are three-fold:

From the technology side:

(1) is to validate the Girona 500 AUV as a well suited and fully operational vehicle open to the scientificcommunity.

From the science side, the goals are:

(2) to constrain the distribution, extent and nature of hydrothermal activity from high-resolution geophysical surveying, and

(3) to understand the underlying hydrothermal processes from fluid sampling and monitoring of the field.

Font: Eurofleets.com