Surveillance et Contrôle des Activités des Navires en Mer

National audienceDans le contexte de la sécurité et sûreté globales et de ses différentes composantes, le projet ScanMaris (Surveillance et Contrôle des Activités des Navires en Mer (Maris)) soutenu par l'Agence Nationale de la Recherche propose une solution concrète qui contribue à sécuriser les frontières maritimes

Surveillance et contrôle des activités des navires en mer : Scanmaris

National audiencePour garantir aujourd'hui des conditions sécuritaires de passage dans les eaux territoriales et exclusives économiques françaises, le dispositif de surveillance maritime s'est renforcé en utilisant de manière optimale la synergie de ses différentes composantes : CROSS (Centre Régionaux Opérationnels de Surveillance et de Sauvetage), sémaphores, moyens nautiques et aériens des administrations en mer. Toutefois, ils ne recueillent des informations que pour des zones maritimes ou des périodes limitées. C'est pourquoi il est envisagé dans les futurs systèmes de surveillance globale et permanente, un recueil massif de données permettant de mieux gérer les contrôles et interventions. Pour cette prise de contrôle global des espaces maritimes en tenant compte des nombreuses informations acquises et sans empêcher ou restreindre le libre échange, il est ainsi nécessaire de développer des outils d'analyse automatisée par croisements des données. Il devient alors possible de suivre dans le temps et l'espace la situation des activités en mer ou liées à la mer, les flux de marchandises transportées et détecter ainsi une part des activités criminelles et les violations à la réglementation, ainsi que les risques encourus (flux de produits illicites, l'immigration clandestine, la sur exploitation des ressources halieutiques, les pollutions par des matières dangereuses, la piraterie, les sinistres, etc.)

Surveillance et contrôle des activités des navires en mer = Surveillance and Control of Vessel's Activities at Sea

Dossier : La sécurité globale. Menaces et réponses. Article disponible sur cette page = http://www.irit.fr/scanmaris/index.php?page=publicationsNational audienceTo guarantee good security conditions in the French national water and exclusive economic zone, the surveillance system is optimised in using various facilities: CROSS (Regional Operational Centres), a network of coastal semaphores, vessels and aircrafts from maritime administrations.. But information are acquired only over limited areas or time periods.Thus, the next solutions shall be global and permanent, and shall process all available information to better manage and control all activities at sea. To best achieve this global surveillance of wide maritime areas without constraining the free access and commercial activities, tools are to be developed to automatically combine and process various types of information collected to continuously monitor the ship's traffic, the good flows and to detect criminal activities and threats (illicit goods flows, clandestine immigrants, piracy, accidents, etc.), and regulation violations

Surveillance et contrôle des activités des navires en mer (REE nov. 2007)

Dossier : La sécurité globale. Menaces et réponses. Article disponible sur cette page = http://www.irit.fr/scanmaris/index.php?page=publicationsNational audienceTo guarantee good security conditions in the French national water and exclusive economic zone, the surveillance system is optimised in using various facilities: CROSS (Regional Operational Centres), a network of coastal semaphores, vessels and aircrafts from maritime administrations.. But information are acquired only over limited areas or time periods.Thus, the next solutions shall be global and permanent, and shall process all available information to better manage and control all activities at sea. To best achieve this global surveillance of wide maritime areas without constraining the free access and commercial activities, tools are to be developed to automatically combine and process various types of information collected to continuously monitor the ship's traffic, the good flows and to detect criminal activities and threats (illicit goods flows, clandestine immigrants, piracy, accidents, etc.), and regulation violations

ScanMaris : an Adaptive and Integrative Approach for Wide Maritime Zone Surveillance

International audienceThe ScanMaris project is an innovative software workshop conceived to develop and evaluate solutions of prevention and monitoring of wide maritime zones. These solutions rely on tools of tactical picture's exploitation, known as enriched for resulting from the continuous treatment of important volumes of heterogeneous data gathered in real time (sensors) and remote time (intelligence). The ScanMaris solutions enable supervising the permanent evolutions of the dense vessel traffic in order to follow the flows of transported goods (bulk, containers, energy, chemical, fishery product, passenger, etc.) according to various routes (corridor, motorway of the sea, coastal traffic, etc.) and to detect the criminal traffics (narcotics, smuggling, illegal immigration, illegal resource fishing, etc). This paper focuses on the technologies involved in the project with their major results. Nevertheless, there is no global analysis of the workshop at this stage, because ScanMaris will be recently funded by the French National Research Agency ANR, and its duration is of 24 months

A siRNA-Based Screen for Genes Involved in Chromosome End Protection

Telomeres are nucleoprotein complexes which protect the ends of linear chromosomes from detection as DNA damage and provide a sequence buffer against replication-associated shortening. In mammals, telomeres consist of repetitive DNA sequence (TTAGGG) and associated proteins. The telomeric core complex is called shelterin and is comprised of the proteins TRF1, TRF2, POT1, TIN2, TPP1 and RAP1. Excessive telomere shortening or de-protection of telomeres through the loss of shelterin subunits allows the detection of telomeres as DNA damage, which can be visualized as DNA damage protein foci at chromosome ends called TIF (Telomere Dysfunction-Induced Foci). We sought to exploit the TIF phenotype as marker for telomere dysfunction to identify novel genes involved in telomere protection by siRNA-mediated knock-down of a set of 386 candidates. Here we report the establishment, specificity and feasibility of such a screen and the results of the genes tested. Only one of the candidate genes showed a unique TIF phenotype comparable to the suppression of the main shelterin components TRF2 or TRF1 and that gene was identified as a TRF1-like pseudogene. We also identified a weak TIF phenotype for SKIIP (SNW1), a splicing factor and transcriptional co-activator. However, the knock-down of SKIIP also induced a general, not telomere-specific DNA damage response, which complicates conclusions about a telomeric role. In summary, this report is a technical demonstration of the feasibility of a cell-based screen for telomere deprotection with the potential of scaling it to a high-throughput approach

Performance of the CMS Cathode Strip Chambers with Cosmic Rays

The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns

Search for supersymmetry in events with b-quark jets and missing transverse energy in pp collisions at 7 TeV

Results are presented from a search for physics beyond the standard model based on events with large missing transverse energy, at least three jets, and at least one, two, or three b-quark jets. The study is performed using a sample of proton-proton collision data collected at sqrt(s) = 7 TeV with the CMS detector at the LHC in 2011. The integrated luminosity of the sample is 4.98 inverse femtobarns. The observed number of events is found to be consistent with the standard model expectation, which is evaluated using control samples in the data. The results are used to constrain cross sections for the production of supersymmetric particles decaying to b-quark-enriched final states in the context of simplified model spectra.Comment: Submitted to Physical Review

Performance and Operation of the CMS Electromagnetic Calorimeter

The operation and general performance of the CMS electromagnetic calorimeter using cosmic-ray muons are described. These muons were recorded after the closure of the CMS detector in late 2008. The calorimeter is made of lead tungstate crystals and the overall status of the 75848 channels corresponding to the barrel and endcap detectors is reported. The stability of crucial operational parameters, such as high voltage, temperature and electronic noise, is summarised and the performance of the light monitoring system is presented