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Displaying 651 - 675 of 4633

Sub-dekahertz spectroscopy of 199 Hg +

September 21, 2001
Author(s)
J. C. Bergquist, R J. Rafac, B. A. Young, James A. Beall, Wayne M. Itano, David J. Wineland
… transition of a single laser-cooled 199 Hg + ion stored in a cryogenic radio-frequency ion trap. We observe Fourier-transoform limited linewidths as …

Effectiveness of AlN Encapsulate in Annealing Ion-Implanted SiC

July 1, 1999
Author(s)
E Handy, M V. Rao, K A. Jones, M A. Derenge, P Chi, R D. Vispute, T Venkatesan, N A. Papanicolaou, J Mittereder
… arsenic (As), antimony (Sb), aluminum (Al), and boron (B) ion-implanted 6H-SiC. Atomic force microscopy (AFM) has … for annealing cycles up to 1600 C for 15 min. Secondary ion mass spectrometry measurements indicated that the AlN … AFM, AlN encapsulate, diffusion, ion implantation, silicon carbide, SIMS …

Wideband Acoustic Emission Displacement Signals as a Function of Source Rise-Time and Plate Thickness

August 1, 1998
Author(s)
Marvin A. Hamstad, John M. Gary, Agnes O'Gallagher
… interrelationships between acoustic source rise-time and plate thickness in steel plates. The source was typically a … in the far-field, typically at a distance of 15 times the plate thickness. Results with the finite element approach … thicknesses. The question of scaling of results with plate thickness was also addressed for typical AE rise-times. …

Differentially detected coherent population trapping resonances excited by orthogonally polarized laser fields

July 24, 2006
Author(s)
V Shah, Svenja A. Knappe, Michael Rosenbluh, John E. Kitching
… excitation and low-noise detection of coherent population trapping (CPT) resonances with two modulated optical fields … atomic clock, coherent population trapping, differential detection, magnetometer, optical … Differentially detected coherent population trapping resonances excited by orthogonally polarized laser …

Well characterized polyethyleneimine/carboxylated polyethylene glycol functionalized gold nanoparticles as prospective nanoscale control materials for in vitro cell viability assays: particle characterization and toxicity test in eight mammalian cell line

January 7, 2025
Author(s)
Vytas Reipa, Vincent Hackley, Alessandro Tona, Min Beom Heo, Ye Ryeong Lee, Tae Geol Lee, Aaron Johnston-Peck, Tae Joon Cho
… and carboxylate polyethylene glycol conjugated gold nanoparticles (AuPEI and Au-PEG-COOH) are qualified for … nanomaterials, toxicology, controls, cell viability, gold nanoparticles, measurement, hazard screening … polyethylene glycol functionalized gold nanoparticles as prospective nanoscale control materials …

Effects of an Oscillating Electric Field on and Dipole Moment Measurement of a Single Molecular Ion

May 31, 2023
Author(s)
Alejandra Collopy, Julian Schmidt, Dietrich Leibfried, David Leibrandt, Chin-wen Chou
… (rf) electric field experienced by a molecular ion in an rf Paul trap, a leading systematic in the … uncertainty of the field-free rotational transition. The ion is deliberately displaced to sample different known rf … comb which probes rotational transitions in the molecular ion. With improved coherence of the comb laser, a fractional …

Interphase Formation Versus Fluoride-ion Insertion in Tunnel-Structured Transition Metal Antimonites

November 6, 2024
Author(s)
Cherno Jaye, Conan Weiland, Daniel Fischer, Alice R. Giem, Jaime R. Ayala, Sarbajit Banerjee
… are used to model interfacial reactions in fluoride-ion batteries. Topochemical F-ion insertion is evidenced for one-dimensional (1D) … F-ion batteries, energy, 1D tunnels, XRD, SEM, XANES, HAXPES … Interphase Formation Versus Fluoride-ion Insertion in Tunnel-Structured Transition Metal …

Collaborative guarded-hot-plate tests between the Laboratoire national de metrologie et dessais and the National Institute of Standards and Technology

January 20, 2017
Author(s)
Robert R. Zarr, William F. Guthrie, Bruno Hay, Alain Koenen
… the long-term measurement performance between guardedhot- plate facilities at the Laboratoire national de métrologie et … expanded polystyrene, fibrous glass, guarded hot plate, interlaboratory comparison, thermal conductivity, … Collaborative guarded-hot-plate tests between the Laboratoire national de metrologie et …

EBIT Diagnostics Using X-ray Spectra of Highly Ionized Ne

May 1, 2003
Author(s)
M Matranga, M Barbera, A Maggio, G Peres, S Serio, E Takacs, E Silver, John D. Gillaspy, H. Schnopper, J M. Laming, J. Beeman, E. E. Haller, N. Madden
… line ratio. We have investigated possible effects of the ion dynamics on the plasma emission line intensities, looking … and hence the overlap between the electron beam and the ion cloud, depend on the electron beam operating parameters. … the value of future improved studies of the trapped ion dynamics, both for understanding the EBIT performance and …

Accelerated Bottom-up Gold Filling of Trenches

July 12, 2019
Author(s)
Daniel Josell, Maureen E. Williams, Stephen J. Ambrozik, Chen Zhang, Thomas P. Moffat
… gold, trenches, interconnect, grating, superconformal … Accelerated Bottom-up Gold Filling of Trenches …

High-Performance Coherent Population Trapping Clock Based on Laser-Cooled Atoms

November 2, 2017
Author(s)
Xiaochi Liu, Eugene Ivanov, V. I. Yudin, John Kitching, Elizabeth Donley
… period. Here we present a cold-atom coherent population trapping clock that achieves fractional frequency stability … atomic clock, coherent population trapping, light shifts, ramsey spectroscopy … High-Performance Coherent Population Trapping Clock Based on Laser-Cooled Atoms …

Chain and Ion Dynamics in Precise Polyethylene Ionomers

October 11, 2019
Author(s)
Christopher L. Soles, Amalie Frischknecht, Benjamin Paren, Robert Middleton, Karen Winey, Jason Koski, Madhu Sudan Tyagi, Jacob Daniel Tarver
… sufficiently fast to observe the early stages of lithium ion motion and ionic aggregate rearrangements. In the … ionomers with isolated ionic aggregates, the Li-ion containing aggregates rearrange by a process of merging … polyelectrolyte, ionomer, ion transport, neutron scattering, energy storage, molecular …

Neutron Scattering Studies of Lithium-Ion Diffusion in Ternary Phosphate Glasses

June 30, 2016
Author(s)
Gavin Hester, Tom Heitmann, Madhu Sudan Tyagi, Munesh Rathore, Anshuman Dalvi, Saibal Mitra
… modification of the structure and to an increase lithium ion (Li + ) conduction. We find that an increase of Li 2 SO 4 … Lithium ion diffusion, neutron scattering … Neutron Scattering Studies of Lithium-Ion Diffusion in Ternary Phosphate Glasses …

Electrochemical Quantitation of DNA Immobilized on Gold

November 15, 1998
Author(s)
A B. Steel, T M. Herne, Michael J. Tarlov
… to quantify the surface density of DNA immobilized on gold. The surface density of DNA, more specifically the … measured at the electrode surface. DNA was immobilized on gold by forming mixed monolayers of thiol-derivitzed, … Electrochemical Quantitation of DNA Immobilized on Gold …

Observation of Latent Reliability Degradation in Ultra-Thin Oxides after Heavy-Ion Irradiation

February 18, 2002
Author(s)
John S. Suehle, Bin Wang, J. F. Conley, Eric M. Vogel, Peter Roitman, C E. Weintraub, A. H. Johnston, J B. Bernstein
… irradiation had no affect on oxide lifetime. The heavy ion irradiation substantially reduced oxide life even though … stress conditions was a strong function of the heavy ion fluence. … heavy-ion irradiation, reliability, oxide breakdown, radiation … Reliability Degradation in Ultra-Thin Oxides after Heavy-Ion Irradiation …
Displaying 651 - 675 of 4633
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