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Displaying 51 - 75 of 4257

Towards a quantum repeater using a surface-trap-integrated microcavity and trapped ions

November 18, 2025
Author(s)
Lindsay Sonderhouse, Margaret Bruff, Kaitlyn David, Daniel Slichter, Dietrich Leibfried
… Trapped ions are a leading candidate for the "stationary qubits" of a … quantum repeater, trapped ions, optical cavity, quantum networking, surface electrode … using a surface-trap-integrated microcavity and trapped ions … using a surface-trap-integrated microcavity and trapped ions …

Proposed UNIFORMAT II Classification of Bridge Elements

June 10, 2011
Author(s)
Muthiah Kasi, Robert E. Chapman
… This report presents a proposed UNIFORMAT II classification of bridge elements. Elemental … bridge classification, E 2103, differed from the UNIFORMAT II elemental classification hierarchy in several ways which … Once approved and reissued by ASTM, the UNIFORMAT II Standard Classification of Bridge Elements, E 2103, will …

Ion-Molecule Reactions and Ion Kinetics in DC Townsend Discharges in Dielectric Gases

January 1, 1999
Author(s)
MVVS. Rao, James K. Olthoff
… and kinetic energies of ions are determined by ion-molecule collisions experienced by ions as they are … as charge-exchange collisions, collisional detachment, and ion conversion, we have measured the kinetic-energy … measurements, and the effective cross sections for the ion-molecule reactions, in some cases, may be calculated. The …

Characterization of Stabilized Zero Valent Iron Nanoparticles

December 10, 2011
Author(s)
Lauren F. Greenlee, Stephanie A. Hooker
… on the development and characterization of zero valent iron-based catalytic nanoparticles. In particular, different … Nanoparticles, zero valent iron, stabilization, carboxymethyl cellulose, phos-phonates … Characterization of Stabilized Zero Valent Iron Nanoparticles …

Extreme Ultraviolet Spectra of Highly Charged Xenon Observed with an Electron Beam Ion Trap

November 23, 2012
Author(s)
Dmitry D. Osin, Joseph Reader, John D. Gillaspy, Yuri Ralchenko
… charged xenon atoms were produced with an electron beam ion trap (EBIT) at the National Institute of Standards and … within the 3s23p2 ground configuration of the Si-like ion. A list of adopted wavelengths used as calibration … charged ions, fusion diagnostics, xenon, Xe, electron beam ion trap, EBIT …

Direct Imaging of Static and Dynamic Ion Cloud Distributions in an Electron Beam Ion Trap

February 1, 2000
Author(s)
James V. Porto
… directly image highly charged ions within an electron beam ion trap (EBIT). Using an intensified CCD camera, we have the capability to measure both static and dynamic ion cloud distributions. The technique provides information … by other methods. Static images can be used to determine ion temperatures and the degree of overlap between the …

Numerical Modeling of Counterflow Diffusion Flames Inhibited by Iron Pentacarbonyl (NISTIR 6213)

October 1, 1999
Author(s)
M D. Rumminger, Gregory T. Linteris
… counterflow diffusion flames by the super-effective agent iron pentacarbonyl. Calculations using a gas-phase chemical … that the fractional flux of H and O atoms through the iron reactions increases as inhibitor concentration … halon alternatives, diffusion flames, flame inhibition, iron pentacarbonyl, counterflow flames, extinction …

Recommended electron-impact excitation and ionization cross sections for Be II

January 9, 2024
Author(s)
DIPTI DIPTI, Christian Hill, Dmitry Fursa, Haadi Umer, Igor Bray, Yuri Ralchenko
… excitation and ionization cross sections for Be II is given and the recommended data sets for use in plasma … Excitation, ionization, electron impact, Be II, convergent close-coupling … excitation and ionization cross sections for Be II …

Warm-Hip Compaction of Attrition-Milled Iron Alloy Powders

January 1, 1999
Author(s)
J C. Rawers, Frank S. Biancaniello, Rodney D. Jiggetts, Richard J. Fields, Maureen E. Williams
… (Hot-Isostatic-Pressure) compaction of attrition-milled iron alloy powders resulted in production of high strength, fully-dense compacts of nanostructured iron alloy powders. Commercial development of nanostructured … and results of Warm-HIP compacted nanostructured iron powder alloys are presented below. …

Neutron Depth Profiling Technique for Studying Aging in Li-ion Batteries

February 15, 2011
Author(s)
Robert G. Downing
… During operation of a Li-ion cell, lithium diffuses in and out of the solid phase … Lithium, battery, neutron depth profiling, aging, Li-ion cell, C-rate … Neutron Depth Profiling Technique for Studying Aging in Li-ion Batteries …

The spectrum of Fe II

January 1, 2013
Author(s)
Gillian Nave, S Johansson
… The spectrum of singly-ionized iron (Fe II) has been recorded using high-resolution Fourier transform … 900 lines were classified using 1028 energy levels of Fe II that were optimized to measured wavenumbers. The … The spectrum of Fe II …

Delivery of Fluorescent Probes Using Iron Oxide Particles as Carriers Enables In Vivo Labeling of Migrating Neural Precursors for MRI and Optical Imaging

November 1, 2007
Author(s)
James P. Sumner, Richard Conroy, Eric Shapiro, John M. Moreland, Alan P. Koretsky
… Iron oxide particles are becoming an important contrast agent … MRI. In this work, it was demonstrated that micron-sized iron oxide particles (MPIOs) can be used as a carrier to … cell tracking, fluorescent probes, micron sized iron oxide particles, MPIO, MRI … Delivery of Fluorescent Probes Using Iron Oxide Particles as Carriers Enables In Vivo Labeling of …

United States Capitol Dome:Characterization of Cast and Wrought Materials

January 2, 2011
Author(s)
Christopher N. McCowan, Thomas A. Siewert, David Olson, Joseph D. McColskey
… Restoration of the cast iron dome at the United States Capitol is needed because … from the dome are discussed in this report. The cast iron skin of the dome is a ferrite-pearlite grey iron with strength consistent with the carbon and silicon … cast iron dome, grey cast iron, microstruture, Office of the …

A New Investigation of Iron Cross Sections via Spherical-Shell Transmission Measurements and particle Transport Calculations

August 1, 2002
Author(s)
J M. Adams, A Alpan, Allan D. Carlson, S Gardner, S M. Grimes, A Haghighat, V Kucukboyaci, T N. Massey, A Patchimpattapong, M T. Wenner
… project to study neutron scattering interactions in iron, the principal objective of which is to investigate the … using the spherical-shell transmission method, employing iron shells with different thicknesses, and neutron … theoretical calculations of neutron transport through the iron sphere In order to evaluate the degree to which the …

Common Origin of the Two Types of Magnetic Fluctuations in Iron Chalcogenides

December 5, 2011
Author(s)
Songxue Chi, Jose Rodriguez Rivera, Jeffrey W. Lynn, Chenglin Zhang, D. Phelan, Deepak Singh, Rick L. Paul, Pengcheng Dai
… the nature of magnetism and superconducting pairing in the iron chalcogenides. … Iron Superconductors, Spin Excitations, Commensurate … Common Origin of the Two Types of Magnetic Fluctuations in Iron Chalcogenides …

Charge States of y Ions in the Collision-Induced Dissociation of Doubly Charged Tryptic Peptide Ions

February 25, 2011
Author(s)
Pedatsur Neta, Stephen E. Stein
… relative intensities of charge states of product y- and b-ions depend on the final location of that proton. This study … distributions for dissociation of doubly charged peptide ions, using a large reference library of peptide ion fragmentation generated from ion-trap CID of peptide ions from tryptic digests. Trends in relative intensities of …

A Miniature EBIT with Ion Extraction for Isolating Highly Charged Ions

May 28, 2015
Author(s)
Shannon Hoogerheide, Joseph Tan
… development of a room-temperature miniature electron beam ion trap (EBIT) for efficient production of charge states … and electric potential necessary for the production of ions in the EBIT. In addition to radial access for in-EBIT … select a single charge state to be isolated in a secondary ion trap for further study. One goal is the production of …
Displaying 51 - 75 of 4257
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