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Displaying 776 - 800 of 2769

Monte Carlo / RRKM / Classical Trajectories Modeling of Collisional Excitation and Dissociation of n-Butylbenzene Ion in Multipole Collision Cells of Tandem Mass Spectrometers

May 18, 2010
Author(s)
Vadim D. Knyazev, Stephen Stein
… C 7 H 8 + ) ions in the electromagnetic field of multipole ion guides and collision cells, classical trajectory modeling … and scattering of ions, and RRKM modeling of the parent ion decomposition. Experimental information on the energy … Collisional Excitation and Dissociation of n-Butylbenzene Ion in Multipole Collision Cells of Tandem Mass Spectrometers …

Origin of Electrical Signals for Plasma Etching Endpoint Detection

November 18, 2011
Author(s)
Mark A. Sobolewski
… in substrate surface properties such as photoemitted or ion-induced electron yield. To investigate these effects, … in rf bias impedance coincides with an increase in ion current density and a change in the electron energy … distribution function (EEDF). The measured changes in ion current and EEDF, when input into a numerical model of …

Improving the efficiency of Monte Carlo simulations of ions using expanded grand canonical ensembles

October 9, 2019
Author(s)
Harold W. Hatch, Steven W. Hall, Jeffery R. Errington, Vincent K. Shen
… apparent requirement to insert and delete neutral sets of ions simultaneously in order to maintain charge neutrality. … by gradual insertion and deletion of these neutral sets of ions. We introduce an expanded ensemble approach which may be … existing methods to further improve efficiency. Individual ions are inserted or deleted in one Monte Carlo trial rather …

MULTI-COLLECTOR CONFIGURATION CONSIDERATIONS AND SUBSTRATE RELATIVE SENSITIVITY FACTOR EFFECTS FOR AGE-DATING MEASUREMENTS OF PARTICLES BY LARGE GEOMETRY SECONDARY ION MASS SPECTROMETRY

October 1, 2021
Author(s)
Todd Williamson, David S. Simons, John D. Fassett
… particles using large geometry secondary ion mass spectrometry (LG-SIMS) showing that it is feasible … Large Geometry Secondary Ion Mass Spectrometry, Age Dating Analysis, Multi-collector … MEASUREMENTS OF PARTICLES BY LARGE GEOMETRY SECONDARY ION MASS SPECTROMETRY …

(Magic Dopant) Amphoteric Behavior of a Redox-Active Transition Metal Ion in a Perovskite Lattice: New Insights on the Lattice Site Occupation of Manganese in SrTiO3

October 5, 2016
Author(s)
Russell A. Maier, Matthew P. Donohue
… for the first time that a transition metal, redox-active ion can exhibit amphoteric substitution in the SrTiO3 … amphoteric doping of a transition metal redox- active ion offers the possibility to build new electronic … Amphoteric Behavior of a Redox-Active Transition Metal Ion in a Perovskite Lattice: New Insights on the Lattice Site …

"Perpendicular laser cooling with a rotating wall potential in a Penning trap"

April 26, 2016
Author(s)
Joseph W. Britton, Justin G. Bohnet, John Bollinger, Steven B. Torrisi
… wall potential on perpendicular laser cooling in a Penning ion trap. By including energy exchange with the rotating … laser cooling, laser cooling, non-neutral plasmas, Penning ion trap, rotating wall, trapped ion crystals …

Spectral Data for Atoms and Ions

November 1, 2000
Author(s)
Joseph Reader
… of databases for spectral properties of atoms and ions. Version 2.0 of the NIST Atomic Spectra Database (ASD) … Spectral Data for Atoms and Ions …

Spectrophotometric Measurement of Carbonate Ion in Seawater over a Decade: Dealing with Inconsistencies

June 7, 2022
Author(s)
Elisa Guallart, Noelia Fajar, Maribel Garcia-Ibanez, Monica Castano-Carrera, Rocio Santiago-Domenech, Abed El Rahman Hassoun, Fiz Perez, Regina Easley, Marta Alvarez
… The spectrophotometric methodology for carbonate ion determination in seawater was first published in 2008 and … uses a merged overdetermined CO2 system dataset (carbonate ion, pH and alkalinity) obtained between 2009 to 2020 to … Spectrophotometric Measurement of Carbonate Ion in Seawater over a Decade: Dealing with Inconsistencies …

Quantum amplification of motion of a mechanical oscillator

June 21, 2019
Author(s)
Shaun C. Burd, Raghavendra Srinivas, John J. Bollinger, Andrew C. Wilson, David J. Wineland, Dietrich G. Leibfried, Daniel H. Slichter, David T. Allcock
… quantum noise. We implement this protocol with a trapped-ion mechanical oscillator and measure metrological … Quantum metrology, squeezing, trapped ion …

Role of Nanoparticle Size and Surface Chemistry on Ion Transport and Nanostructure of Perfluorosulfonic Acid Ionomer Nanocomposites

March 7, 2022
Author(s)
Allison Domhoff, Tyler Martin, Eric Davis
… have emerged as a promising solution to the low ion selectivity of ionomer membranes utilized in flow … dispersion state and the resulting morphology and vanadium ion permeability of the composite membranes. Specifically, … Most notably, an approximately 80 % reduction in vanadium ion permeability is observed for ionomer membranes containing …

Analysis of the Free Ion Nd 3+ Spectrum (Nd IV)

October 12, 2021
Author(s)
J-F Wyart, Ali Meftah, Wan-U Lydia Tchang-Brillet, Norbert Champion, O Lamrous, Nissan Spector, J Sugar
… emission spectrum, energy levels, free-ion, parametric fits, triply ionized, wavelengths … Analysis of the Free Ion Nd 3+ Spectrum (Nd IV) …

Spectrum and Energy Levels of the Nd 4+ Free Ion (Nd V)

October 12, 2021
Author(s)
Ali Meftah, J-F Wyart, Jocelyne Sinzelle, Wan-U Lydia Tchang-Brillet, Norbert Champion, Nissan Spector, J Sugar
… emission spectrum, energy levels, fits, free-ion, parametric, triply ionized, wavelengths … Spectrum and Energy Levels of the Nd 4+ Free Ion (Nd V) …

Investigation of the Charge Compensation Mechanism on the Electrochemically Li-Ion Deintercalated Li 1-x Co 1/3 Ni 1/ 3MN 1/3 O 2 Electrode System by Combination of Soft and Hard X-Ray Absorption Spectroscopy

January 11, 2005
Author(s)
W S. Yoon, Kyung Y. Chung, Xiao-Qing Yang, James McBreen, Mahalingam Balasubramanian, C P. Grey, Daniel A. Fischer
… the major charge compensation at the metal site during Li-ion deintercalation is achieved by the oxidation of Ni2+ … that large portion of the charge compensation during Li-ion deintercalation is achieved in the oxygen site. By … Charge Compensation Mechanism on the Electrochemically Li-Ion Deintercalated Li 1-x Co 1/3 Ni 1/ 3MN 1/3 O 2 Electrode …
Displaying 776 - 800 of 2769
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