Open Access. Powered by Scholars. Published by Universities.®

Education Commons™

Open Access. Powered by Scholars. Published by Universities.®

Selected Works

2009

Engineering

Articles 1 - 15 of 15

Full-Text Articles in Education

Absolute Nitrogen Atom Density Measurements By Two-Photon Laser-Induced Fluorescence Spectroscopy In Atmospheric Pressure Dielectric Barrier Discharges Of Pure Nitrogen, Et-Touhami Es-Sebbar, Christian Sarra-Bournet, Nicolas Naudé, Françoise Massines, Nicolas Gherardi Oct 2009

Absolute Nitrogen Atom Density Measurements By Two-Photon Laser-Induced Fluorescence Spectroscopy In Atmospheric Pressure Dielectric Barrier Discharges Of Pure Nitrogen, Et-Touhami Es-Sebbar, Christian Sarra-Bournet, Nicolas Naudé, Françoise Massines, Nicolas Gherardi

Dr. Et-touhami Es-sebbar

In this paper, two-photon absorption laser induced fluorescence spectroscopy is used to follow the nitrogen atom density in flowing dielectric barrier discharges fed with pure nitrogen and operating at atmospheric pressure. Two different dielectric barrier discharge regimes are investigated: the Townsend regime, which is homogeneous although operating at atmospheric pressure, and the more common filamentary regime. In both regimes, densities as high as 3x1014 /cm3 are detected. However, the N atoms kinetic formation depends on the discharge regime. The saturation level is reached more rapidly with a filamentary discharge. For a given discharge regime, the N atom density depends strongly …

Go to article

Contributions To The Development Of The S.E.T.U.P. (Experimental And Theoretical Simulations Useful For Planetology) Project, E. Arzoumanian, C. Romanzin, M-C. Gazeau, Et. Es-Sebbar, A. Jolly, S. Perrier, Y. Benilan Oct 2009

Contributions To The Development Of The S.E.T.U.P. (Experimental And Theoretical Simulations Useful For Planetology) Project, E. Arzoumanian, C. Romanzin, M-C. Gazeau, Et. Es-Sebbar, A. Jolly, S. Perrier, Y. Benilan

Dr. Et-touhami Es-sebbar

No abstract provided.

Go to article

Multiwavelength Studies For Titan's Atmospheric Composition Analysis, Y. Benilan, Et. Es-Sebbar, N. Fray, M-C. Gazeau, A. Jolly, M. Schwell, J. Guillemin Oct 2009

Multiwavelength Studies For Titan's Atmospheric Composition Analysis, Y. Benilan, Et. Es-Sebbar, N. Fray, M-C. Gazeau, A. Jolly, M. Schwell, J. Guillemin

Dr. Et-touhami Es-sebbar

Titan's atmosphere mainly made of nitrogen and methane is rich in organic molecules. Hydrocarbons are formed from the photolytic dissociation of CH4 and nitriles are created by dissociation of N2 followed by reactions with hydrocarbons. In order to understand the physicochemical mechanisms responsible for the evolution of Titan's atmosphere, photochemical models are built. The latter need constrains for vertical profiles of organic compounds from the high thermosphere down to the low stratosphere as well as photodissociation rates. Those profiles over the entire atmosphere can be retrieved from Cassini observations, in particular by limb sounding, coupling infrared and ultraviolet spectroscopy. However, …

Go to article

Exploring What Engineering Doctoral Students Aspiring To Faculty Careers Learn About Research From Faculty Mentors. Frontiers In Education, (Fie) Annual Meeting, San Antonio, Tx., Tonya Saddler Sep 2009

Exploring What Engineering Doctoral Students Aspiring To Faculty Careers Learn About Research From Faculty Mentors. Frontiers In Education, (Fie) Annual Meeting, San Antonio, Tx., Tonya Saddler

Tonya N. Saddler, Ph.D.

No abstract provided.

Go to article

Saddler, T.N., Trautvetter, L., & Mckenna, A.F. (2009, October). Prototyping The Engineer Of 2020: A Curricular Examination Of Two Exemplary Institutions Preparing Undergraduate Engineers. Frontiers In Education, (Fie) Annual Meeting, San Antonio, Tx., Tonya Saddler Sep 2009

Saddler, T.N., Trautvetter, L., & Mckenna, A.F. (2009, October). Prototyping The Engineer Of 2020: A Curricular Examination Of Two Exemplary Institutions Preparing Undergraduate Engineers. Frontiers In Education, (Fie) Annual Meeting, San Antonio, Tx., Tonya Saddler

Tonya N. Saddler, Ph.D.

No abstract provided.

Go to article

Vuv Photostability Of Prebiotic Species, M. Schwell, Y. Bénilan, M.-C. Gazeau, N. Fray, A. Jolly, Et. Es-Sebbar, N. Champion, S. Leach, H. W Jochims, H. Baumgärtel, E. Rühl Sep 2009

Vuv Photostability Of Prebiotic Species, M. Schwell, Y. Bénilan, M.-C. Gazeau, N. Fray, A. Jolly, Et. Es-Sebbar, N. Champion, S. Leach, H. W Jochims, H. Baumgärtel, E. Rühl

Dr. Et-touhami Es-sebbar

No abstract provided.

Go to article

S.E.T.U.P. Experimental And Theoretical Simulations Useful For Planetology- Related Studies In The Frame Of A Program Of Titan’S Atmosphere Laboratory Simulations, M.-C. Gazeau, Et. Es-Sebbar, E. Arzoumanian, C. Romanzin, A. Jolly, S. Perrier, Y. Bénilan Sep 2009

S.E.T.U.P. Experimental And Theoretical Simulations Useful For Planetology- Related Studies In The Frame Of A Program Of Titan’S Atmosphere Laboratory Simulations, M.-C. Gazeau, Et. Es-Sebbar, E. Arzoumanian, C. Romanzin, A. Jolly, S. Perrier, Y. Bénilan

Dr. Et-touhami Es-sebbar

No abstract provided.

Go to article

Characterization Of An N2 Flowing Microwave Post-Discharge By Oes Spectroscopy And Determination Of Absolute Ground-State Nitrogen Atom Densities By Talif, Et. Es-Sebbar, Y. Benilan, A. Jolly, M-C. Gazeau Jun 2009

Characterization Of An N2 Flowing Microwave Post-Discharge By Oes Spectroscopy And Determination Of Absolute Ground-State Nitrogen Atom Densities By Talif, Et. Es-Sebbar, Y. Benilan, A. Jolly, M-C. Gazeau

Dr. Et-touhami Es-sebbar

A flowing microwave post-discharge source sustained at 2.45 GHz in pure nitrogen has been investigated by optical emission spectroscopy (OES) and two-photon absorption laser-induced fluorescence (TALIF) spectroscopy. Variations of the optical emission along the post-discharge (near, pink and late afterglow) have been studied and the gas temperature has been determined. TALIF spectroscopy has been used in the late afterglow to determine the absolute ground-state nitrogen atomic densities using krypton as a reference gas. Measurements show that the microwave flowing post-discharge is an efficient source of N (4S) atoms in late afterglow. In our experimental conditions, the maximum N (4S) density …

Go to article

Research Themes In Hpt: A Content Analysis Of The Ispi Journals, Linda Huglin Apr 2009

Research Themes In Hpt: A Content Analysis Of The Ispi Journals, Linda Huglin

Linda Huglin

No abstract provided.

Go to article

Vers Un Développement Orienté Services Des Applications Interactives Dans Le Domaine De La Logistique, Étude De Cas, Djilali Idoughi, Christophe Kolski Feb 2009

Vers Un Développement Orienté Services Des Applications Interactives Dans Le Domaine De La Logistique, Étude De Cas, Djilali Idoughi, Christophe Kolski

Professor Djilali IDOUGHI

Cet article contribue au domaine de l’interaction homme-machine (IHM), en proposant un cadre méthodologique global en vue de la spécification de systèmes interactifs dans le domaine de la logistique, pouvant aller jusqu’à la e-logistique. La logistique est vue au sens large en étudiant les besoins des différents acteurs d’une organisation complexe, vis-à-vis de l’exploitation de nouvelles technologies où l’accent est mis sur les services web et l’architecture orientée services. Le cadre proposé a été appliqué sur une étude de cas complexe représentative, relative à la fonction logistique d’un groupe agro-alimentaire.

Go to article

Researches On Copper. History & Metallurgy, Fathi Habashi Feb 2009

Researches On Copper. History & Metallurgy, Fathi Habashi

Fathi Habashi

The present volume is a collection of selected papers dealing with the extractive metallurgy of copper published by the author and his coworkers. They are reproduced here in a facsimile edition in 240 pages. In addition ten new chapters were specially written in 150 pages. The book is fully illustrated by many colored pictures, flowsheets, and diagrams. It is hoped that it will be useful for students, engineers, chemists, geologists, and for research workers.

Go to article

Gold. History, Metallurgy, Culture, Fathi Habashi Feb 2009

Gold. History, Metallurgy, Culture, Fathi Habashi

Fathi Habashi

Gold, the first metal used by man, has a special place among metals. It plays an important role in society and in world economics. It caused unprecedented mass migrations on three continents, and at least one war. It was responsible for creating many large cities, is highly prized, has been the inspiration of numerous myths, was the ultimate goal of alchemists, stored in the vaults of banks, widely on display in oriental bazaars, and is generously used in decorating churches and temples. The present volume is composed of two parts: a collection of selected papers published by the author on …

Go to article

Mac Pgp Encryption, Elizabeth Scheyder Dec 2008

Mac Pgp Encryption, Elizabeth Scheyder

Elizabeth C Scheyder

No abstract provided.

Go to article

Persona Comme Outil De Design De Services Interactifs: Principes Et Exemple En E-Maintenance, Ahmed Seffah, Christophe Kolski, Djilali Idoughi Dec 2008

Persona Comme Outil De Design De Services Interactifs: Principes Et Exemple En E-Maintenance, Ahmed Seffah, Christophe Kolski, Djilali Idoughi

Professor Djilali IDOUGHI

Dans ce papier, nous discutons du rôle du persona comme outil de modélisation et d’analyse de l’expérience utilisateur. Ce concept est issu des travaux de recherche de marketing sur le comportement du consommateur. Sa finalité est une meilleure compréhension et une prise en compte de l’expérience de l’utilisateur final. L’Expérience Utilisateur ou client (UX) est un terme générique désignant une collection d’information couvrant le comportement de l’utilisateur, incluant les connaissances, l’expertise, et les attributs décrivant la personnalité de l’usager. Un cas d’exemple en logiciel comme service pour la e-maintenance illustre l’approche persona. Le Software as a Service (SaaS, logiciel comme …

Go to article

Controlled Language - Does My Company Need It?, Uwe Muegge Dec 2008

Controlled Language - Does My Company Need It?, Uwe Muegge

Uwe Muegge

Controlled languages use basic writing rules to simplify sentence structure. Here is how they work and how your company can benefit from introducing a controlled language.

Go to article