J-2X, The Engine of the Future

My project was two-fold, with both parts involving the J-2X Upper Stage engine (which will be used on both the Ares I and V). Mainly, I am responsible for using a program called Iris to create visual represen tations of the rocket engine's telemetry data. Also, my project includes the application of my newly acquired Pro Engineer skills in develo ping a 3D model of the engine's nozzle

A Generic Communications Module for Cooperative 3D Visualization and Modelling over the Internet: the Collaborative API

Cooperative three-dimensional visualization and modeling applications allow a distributed group of users to work together with a model they share. To implement this kind of applications the underlying communications system must provide reliable and ordered multicast of users interactions. Due to the high complexity that characterizes the models, network bandwidth requirements have limited their use to intranets or in a few cases to very high-speed Internet connections. In this paper we present a communications module that solves this problem. The library exposed, which is called Collaborative API, supports the creation of very efficient cooperative 3D visualization and modeling applications by optimizing the use of the network resources. The Collaborative API, implements a new communications architecture: the dynamic client/server. The communications module presented in this paper is illustrated by two examples of applications that use it to provide cooperative 3D visualization over the Internet

Instrumentation for nondestructive testing of composite honeycomb materials

Program develops instrumentation for nondestructive testing of adhesive-bond strength in honeycomb materials and air coupled inspection methods suitable for large tankage

Laval – Saint-Pierre-le-Potier, le Chemin de Saint-Pierre

Le bourg de Saint-Pierre-le-Potier à Laval (Mayenne) a fait l’objet, du 28 août au 21 octobre 2001, de travaux de mise en réseau qui ont conduit à une surveillance archéologique de travaux menée par le service patrimoine de la ville de Laval. À la suite des travaux de J. Naveau entre 1979 et 1982, le site était connu pour être un centre de production céramique du xiiie au xve s. (dont les productions les plus connues sont les céramiques dites « à œil de perdrix » et les céramiques dites « ros..

Media Advertising and Ballot Initiatives: An Experimental Analysis

Spending on political advertising increases with every election cycle, not only for congressional or presidential candidates, but also for state-level ballot initiatives. There is little research in marketing, however, on the effectiveness of political advertising at this level. In this study, we conduct an experimental analysis of advertisements used during the 2008 campaign to mandate new animal welfare standards in California (Proposition 2). Using subjects' willingness to pay for cage-free eggs as a proxy for their likely voting behavior, we investigate whether advertising provides real information to likely voters, and thus sharpens their existing attitudes toward the issue, or whether advertising can indeed change preferences. We find that advertising in support of Proposition 2 was more effective in raising subjects' willingness to pay for cage-free eggs than ads in opposition were in reducing it, but we also find that ads in support of the measure reduce the dispersion of preferences and thus polarize attitudes toward the initiative. More generally, political ads are found to contain considerably more "hype" than "real information" in the sense of Johnson and Myatt (2006).Animal Welfare, Proposition 2, Cage Free eggs, Willingness to Pay, BDM auction, Political Advertising, Agribusiness, Agricultural and Food Policy, Demand and Price Analysis, Marketing, Political Economy, Production Economics, Public Economics,

Gestión del patrimonio arqueológico subacuático y costero en los mares de Israel (II): los yacimientos litorales en riesgo

The two articles titled Management of the underwater and coastal archaeological heritage in Israel's seas – parts A and B aim at presenting the diversity, nature and significance of an important cultural resource at risk, namely the underwater and coastal archaeological sites of Israel. Part I introduces the typology of the sites on the Mediterranean coast and the inland seas (The Sea of Galilee and the Dead Sea). Part II presents the main endangered sites along the Mediterranean coast of Israel, their archaeological and historical significance, the risks they are facing and the measures that have to be taken in order to ensure their long term preservation.Los dos artículos presentados con el título “Gestión del patrimonio arqueológico subacuático y costero en los mares de Israel” apuntan a la diversidad, naturaleza y trascendencia de un importante recurso cultural en riesgo, concretamente los yacimientos arqueológicos submarinos y costeros de Israel. En la primera parte introducíamos la tipología de los asentamientos sobre la costa mediterránea y los mares interiores (el Mar de Galilea y el Mar Muerto). Esta segunda parte presenta los yacimientos más amenazados a lo largo de las costas israelíes del Mediterráneo, su histórica y arqueológica importancia, los riesgos a los que se enfrentan y las medias que deben ser tomadas con objeto de asegurar su preservación a largo plazo

Cluster size distributions in gas jets for different nozzle geometries

Cluster size distributions were investigated in case of different nozzle geometries in argon and xenon using Rayleigh scattering diagnostics. Different nozzle geometries result in different behaviour, therefore both spatial- and temporal cluster size distributions were studied to obtain a well-characterized cluster target. It is shown that the generally used Hagena scaling can result in a significant deviation from the observed data and the behaviour cannot be described by a single material condensation parameter. The results along with the nanoplasma model applied to the data of previous high harmonic generation experiments allow the independent measurement of cluster size and cluster density.Comment: 7 pages, 6 figure

Nanodielectics (A "Universal" Panacea for Solving All Electrical Insualation Problems?)

This text summarizes the keynote presentation that is based on the full-length paper of the same title. Dr. Fréchette's oral presentation should not be seen as a summary of the “Brainstorm paper” but a glance at some major accomplishments, hinrances and still remaining questions relative to nanodielectrics. Are nanodielectrics a “universal” panacea? The answer to that question is no - but they've got a lot of potential

Book Review of Site du Palais de l\u27lntendant Chantier-Ecol de l\u27an 2000 by Marie-Michelle Dionne, Desiree-Emmanuelle Duchaine and Richard Lapointe

A book review of this volume which deals with the research conducted in historical archaeology at the Universite Laval in Quebec City, Canada