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5 results on '"L. Bonneval"'

1. Calculation of the population density in the low pressure mercury-argon discharge: analysis of the steady state and sinusoidal operating modes of the positive column

Author

J. L. Bonneval, Georges Zissis, V. Plagnol, J.J. Damelincourt, I. Bernat, Centre de Physique des Plasmas de Toulouse (CPAT), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées, LAboratoire PLasma et Conversion d'Energie (LAPLACE), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Centre National de la Recherche Scientifique (CNRS)

Subjects
Population, General Physics and Astronomy, chemistry.chemical_element, 02 engineering and technology, 7. Clean energy, Physics::Plasma Physics, Ionization, 0202 electrical engineering, electronic engineering, information engineering, education, Physics, education.field_of_study, Argon, business.industry, [SPI.PLASMA]Engineering Sciences [physics]/Plasmas, 020208 electrical & electronic engineering, General Engineering, Electrical engineering, Plasma, Mechanics, Mercury (element), chemistry, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Electric discharge, business, Electronic energy, Excitation
Abstract

This work deals with the setting up of a collisional-radiative model concerning low pressure mercury-argon discharge operating under different power supplies (dc and ac). This model allows determination of various characteristic quantities of the discharge using the population and electronic energy conservation equations. In view of optimisation of the consuming computer time, some simplifying but still realistic hypotheses have been assumed. A first study in the frame of the steady state (dc), allows us to evaluate the “weight” of certain physical phenomena in this type of modelling. We assess how much it is of prime importance to consider Hg-Hg collisions as well as the excitation and ionization of argon in discharge plasmas. The first point, often discarded by many authors, has however a quite appreciable influence on the different discharge parameters. Besides, the determination of the escape factors for the Hg resonance lines at 254 nm and 185 nm are not for the least insignificant.

Published
1993
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2. Construire la ville acceptable en réponse aux bidonvilles

Author

Costil, Mathilde, Roche, Elise, Centre de recherches et d'analyses géopolitiques (CRAG), Université Paris 8 Vincennes-Saint-Denis (UP8), Environnement Ville Société (EVS), École normale supérieure - Lyon (ENS Lyon)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Université Jean Monnet [Saint-Étienne] (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), F. Belmessous, L. Bonneval, Lydia Coudroy de Lille, N. Ortar, TROUFLEAU, Pascal, F. Belmessous, L. Bonneval, Lydia Coudroy de Lille, N. Ortar, Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École nationale supérieure d'architecture de Lyon (ENSAL)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Nationale des Travaux Publics de l'État (ENTPE)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon), Environnement, Ville, Société (EVS), École normale supérieure de Lyon (ENS de Lyon)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ville acceptable, quartiers résidentiels, [SHS.GEO] Humanities and Social Sciences/Geography, bidonvilles, droit de l'urbanisme, [SHS.GEO]Humanities and Social Sciences/Geography, politiques du logement social, urbanisme contemporain, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2014

3. Acheter puis revendre dans la métropole lilloise

Author

Ducourant, Hélène, mortain, b, Laboratoire Techniques, Territoires et Sociétés (LATTS), Université Paris-Est Marne-la-Vallée (UPEM)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS), F. Belmessous, L. Bonneval, L. Coudroy De Lille, and N. Ortar

Subjects
famille, [SHS.SOCIO]Humanities and Social Sciences/Sociology, accession à la propriété, maison, ComputingMilieux_MISCELLANEOUS, plus-value immobilière
Abstract

International audience

Published
2014

4. Biologic Therapy in Chronic Pain Management: a Review of the Clinical Data and Future Investigations.

Author

Motejunas MW, Bonneval L, Carter C, Reed D, and Ehrhardt K

Subjects
Biological Therapy, Fibrin, Humans, Intercellular Signaling Peptides and Proteins, Intervertebral Disc Degeneration therapy, Joint Diseases therapy, Osteoarthritis, Knee therapy, Sacroiliitis therapy, Zygapophyseal Joint, Chronic Pain therapy, Mesenchymal Stem Cell Transplantation, Platelet-Rich Plasma
Abstract

Purpose: With the aging population, it is clear that the demand for future chronic pain treatment modalities is at an all-time high. One of the newest treatment modalities that is gaining popularity with both practitioners and patients alike is that of regenerative medicine and the use of stem cells to treat chronic painful conditions. This article aims to distill the most recent, available data from both laboratory research and clinical trials to better illuminate the potentials for these therapies in the treatment of chronic pain., Recent Findings: There are numerous investigations underway using mesenchymal stem cells (MSCs) to treat painful, largely degenerative conditions. A large majority of these investigations focus on osteoarthritis of the knee and have demonstrated significantly improved pain scores. Some of these investigations have demonstrated significantly increased articular cartilage and meniscus growth as well as improved function. These studies have been smaller (n, 18) and need to be corroborated on a macrolevel. Platelet-rich plasma (PRP)-based therapies have been most extensively studied in the treatment of knee osteoarthritis. Multiple prospective and randomized trials and meta-analyses have afforded level I evidence in support of PRP's safety and efficacy in chronic knee pain demonstrating both decreased pain (via VAS) and increased functional status (via WOMAC and IKDC). There have been randomized controlled trials examining PRP therapies in treatment degenerative disc disease (intradiscal treatment), facet arthropathy (intra-facet injections), and sacroiliitis (SIJ) which have all yielded similar positive results. Each RTC demonstrated decreased pain scores and increased function but lacks the scale to derive concrete guidelines. Newer investigations are underway examining modified PRP formulas with increased fibrin (PRF) or various growth factors (PRGF) and have shown positive outcomes with respect to osteoarthritic conditions in small trials. Animal trials are underway further investigating these therapies as well as specific gene modulation therapies. This review of the most recent investigations into the application and uses of biologic stem cell-derived treatments for chronic painful conditions should act to illustrate the growing, favorable data for these types of modalities both with respect to pain control and functional improvement.

Published
2021
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5. Regional techniques for head and neck surgical procedures.

Author

Novitch M, Hyatali FS, Jeha G, Motejunas M, Bonneval L, Pankaj T, Cornett EM, Jones MR, Kaye RJ, Urman RD, and Kaye AD

Subjects
Head diagnostic imaging, Humans, Neck diagnostic imaging, Anesthesia, Conduction methods, Anesthetics, Local administration & dosage, Head surgery, Neck surgery, Nerve Block methods
Abstract

Regional anesthesia has evolved as an important tool for anesthesiologists and surgeons managing patients for surgery of the head and neck region. In recent years, ultrasound use has increased significantly, and newer nerve blocks have been established for surgeries of the head and regions. In this review, anatomy, indications, efficacy, and potential side effects of regional anesthesia for the head and neck region are presented. Evolving practice strongly suggests that regional nerve blocks for the head and neck region are safe and effective. Future studies and education will likely evolve practice to make these regional techniques standards for future surgeries of the head and neck region., (Published by Elsevier Ltd.)

Published
2019
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