Search

Your search keyword '"University of Central Florida [Orlando] (UCF)"' showing total 3 results
Start Over Author "University of Central Florida [Orlando] (UCF)" Publisher iop publishing
3 results on '"University of Central Florida [Orlando] (UCF)"'

1. Theoretical study of dissociative recombination and vibrational excitation of the ${\mathrm{BF}}_{2}^{+}$ ion by an electron impact

Author

Mehdi Ayouz, Viatcheslav Kokoouline, Khalid Hassouni, János Zsolt Mezei, I. F. Schneider, University of Central Florida [Orlando] (UCF), Laboratoire de Génie des Procédés et Matériaux - EA 4038 (LGPM), CentraleSupélec, Laboratoire Ondes et Milieux Complexes (LOMC), Centre National de la Recherche Scientifique (CNRS)-Université Le Havre Normandie (ULH), and Normandie Université (NU)-Normandie Université (NU)

Subjects
[PHYS]Physics [physics], Scattering, Polyatomic ion, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Charged particle, Ion, Excited state, 0103 physical sciences, Atomic physics, 010306 general physics, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS, Excitation, Dissociative recombination, Electron ionization
Abstract

Cross-sections for dissociative recombination and electron-impact vibrational excitation of the molecular ion are computed using a theoretical approach that combines the normal modes approximation for the vibrational states of the target ion and use of the UK R-matrix code to evaluate electron–ion scattering matrices for fixed geometries of the ion. Thermally-averaged rate coefficients are obtained from the cross-sections for temperatures in the 10–3000 K range.

Published
2018

2. From surface to intracellular non-invasive nanoscale study of living cells impairments

Author

Laurence Nicod, Eric Bourillot, Ali Passian, Laurene Tetard, Maxime Ewald, Cecile Elie-Caille, Eric Lesniewska, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Nanoscience Technology Center ( NTC ), University of Central Florida [Orlando], Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies ( FEMTO-ST ), Université de Technologie de Belfort-Montbeliard ( UTBM ) -Ecole Nationale Supérieure de Mécanique et des Microtechniques ( ENSMM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Intervention, innovation, imagerie, ingénierie en santé - UFC ( I4S ), Université de Franche-Comté ( UFC ), Oak Ridge National Laboratory [Oak Ridge] ( ORNL ), UI-Battelle, Laboratoire de Recherche en Nanosciences - EA 4682 (LRN), Université de Reims Champagne-Ardenne (URCA)-SFR CAP Santé (Champagne-Ardenne Picardie Santé), Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Nanoscience Technology Center [Orlando] (UCF | NTC), University of Central Florida [Orlando] (UCF), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Intervention, innovation, imagerie, ingénierie en santé - UFC (I4S), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Oak Ridge National Laboratory [Oak Ridge] (ORNL), and UT-Battelle, LLC

Subjects
Keratinocytes, Materials science, Stress effects, Glycine, Bioengineering, Nanotechnology, Living cell, Microscopy, Atomic Force, Cell Line, Humans, General Materials Science, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, Electrical and Electronic Engineering, Nanoscopic scale, ComputingMilieux_MISCELLANEOUS, Cytoskeleton, [PHYS.PHYS]Physics [physics]/Physics [physics], Atomic force microscopy, Mechanical Engineering, Non invasive, General Chemistry, Characterization (materials science), Oxidative Stress, Nanometrology, Mechanics of Materials, [ SPI.NANO ] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, Intracellular
Abstract

International audience; Among the enduring challenges in nanoscience, subsurface characterization of living cells holds major stakes. Developments in nanometrology for soft matter thriving on the sensitivity and high resolution benefits of atomic force microscopy have enabled detection of subsurface structures at the nanoscale. However, measurements in liquid environments remain complex, in particular in the subsurface domain. Here we introduce liquid-mode synthesizing atomic force microscopy (l- MSAFM) to study both the inner structures and the chemically induced intracellular impairments of living cells. Specifically, we visualize the intracellular stress effects of glyphosate on living keratinocytes skin cells. This new approach, l-MSAFM, for nanoscale imaging of living cell in their physiological environment or in presence of a chemical stress agent could resolve the loss of inner structures induced by glyphosate, the main component of a well-known pesticide (RoundUp™). This firsthand ability to monitor the cell's inner response to external stimuli nondestructively and in liquid, has the potential to unveil critical nanoscale mechanisms of life science.

Published
2014

3. Thermal stability of standalone silicene sheet

Author

Hanna Enriquez, Virgile Bocchetti, Abdelkader Kara, Hung T. Diep, Hamid Oughaddou, UMR 8089, Laboratoire de Physique Théorique et Modélisation (LPTM - UMR 8089), Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), ISMO, Institut des Sciences Moléculaires d'Orsay (ISMO), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Department of Physics [Orlando] (UCF | Physics), University of Central Florida [Orlando] (UCF), and Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)

Subjects
History, Materials science, Silicon, Monte Carlo method, Thermal Stability, FOS: Physical sciences, chemistry.chemical_element, 02 engineering and technology, 01 natural sciences, Stability (probability), Education, law.invention, law, 0103 physical sciences, Thermal stability, [PHYS.COND.CM-SM]Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech], 010306 general physics, Condensed Matter - Statistical Mechanics, Condensed Matter - Materials Science, Statistical Mechanics (cond-mat.stat-mech), Condensed matter physics, Graphene, Silicene, Isotropy, Materials Science (cond-mat.mtrl-sci), Monte Carlo Simulation, 021001 nanoscience & nanotechnology, Computer Science Applications, chemistry, 0210 nano-technology, Carbon, PACS: 65.40.-b , 64.60.-i , 64.70.dj
Abstract

Extensive Monte Carlo simulations are carried out to study thermal stability of an infinite standalone silicon sheet. We used the Tersoff potential that has been used with success for silicon at low temperatures. However, the melting temperature $T_m$ calculated with the original parameters provided by Tersoff is too high with respect to the experimental one. Agrawal, Raff and Komanduri have proposed a modified set of parameters to reduce $T_m$. For comparison, we have used these two sets of parameters to study the stability and the melting of a standalone 2D sheet of silicon called "silicene", by analogy with graphene for the carbon sheet. We find that 2D crystalline silicene is stable up to a high temperature unlike in 2D systems with isotropic potentials such as Lennard-Jones. The differences in the obtained results using two sets of parameters are striking.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results