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Displaying 901 - 925 of 4633

User Instructions and Technical Details for 500 mm GHP Simulation Programs

July 13, 2018
Author(s)
William C. Thomas
This report is a supplement to the paper published as "Transient Thermal Response of an Extended Temperature Range 500-mm diameter Guarded Hot-plate Apparatus" by Thomas and Zarr (2018), hereafter referred to as the "paper." The paper emphasizes the use of

User Instructions and Technical Details for 500 mm GHP Simulation Programs

July 12, 2018
Author(s)
William C. Thomas
This report is a supplement to the paper published as “Transient Thermal Response of an Extended Temperature Range 500-mm diameter Guarded Hot-plate Apparatus” by Thomas and Zarr (2018) [1], hereafter referred to as the “paper.” The paper emphasizes the

NIST 38. NIST Spectroscopic Properties of Atoms and Atomic Ions Database

October 16, 2008
Author(s)
J R. Rumble
… The NIST Spectroscopic Properties of Atoms and Atomic Ions Database provides listings of prominent air or vacuum … atomic ions, atomic physics, atomic spectroscopy, energy levels, … NIST 38. NIST Spectroscopic Properties of Atoms and Atomic Ions Database …

A self-validated detector for characterization of quantum network components

May 7, 2022
Author(s)
Anouar Rahmouni, Thomas Gerrits, Alan Migdall, Oliver T. Slattery, Ping-Shine Shaw, Joseph P. Rice
… a nearly polarization-independent, low-cost optical trap detector between 1000 nm and 1550 nm for optical power … A NIST-traceable optical power calibration of this trap detector showed a promising result. … single photon detector calibration, trap detector, quantum information …

EUVL dosimetry at NIST

March 13, 2009
Author(s)
Charles S. Tarrio, Steven E. Grantham, Marc J. Cangemi, Robert E. Vest, Thomas B. Lucatorto, Noreen Harned
As part of its role in providing radiometric standards in support of industry, NIST has been active in advancing extreme ultraviolet dosimetry on various fronts. Recently, we undertook a major effort in accurately measuring the sensitivity of three extreme

All-Optical Generation and Photoassociative Probing of Sodium Bose-Einstein Condensates

May 2, 2006
Author(s)
R Dumke, M Johanning, Eduardo Gomez, J D. Weinstein, Kevin Jones, Paul D. Lett
… Bose-Einsteincondensates (BEC). We use a crossed-dipole trap formed from light near 1 $\mu$m, and a simple ramp of … we introduce photoassociation as diagnostic of the trap loading process, and show that it can be used to detect … the spinor state of the BEC is achieved by positioning the trap as well. …

Calcium and phosphate ion releasing composite: Effect of pH on release and mechanical properties

October 27, 2008
Author(s)
Hockin D. Xu, Michael Weir, Limin Sun
… “smart” to increase the calcium (Ca) and phosphate (PO4) ion release at cariogenic pH. Methods. TTCP was ball-milled … level mass fractions varied from 0% to 75%. Ca and PO4 ion release were measured vs. time at pH of 7.4, 6, and 4. … mechanical properties, tooth caries inhibition, Ca and PO4 ion release …

Crystal Asymmetry Induces Single-Atom Chain Formation in Gold Nanowires

October 16, 2008
Author(s)
Francesca Tavazza, A Hasmy, Lyle E. Levine, Anne M. Chaka, Luis C. Rincon, M Marquez, Carlos A. Gonzalez
… formation of suspended linear atom chains when stretching gold nanowires along the [110] crystal orientation. We … Crystal Asymmetry Induces Single-Atom Chain Formation in Gold Nanowires …

Binding Energies in Atomic Negative Ions: III

November 14, 2018
Author(s)
T Andersen, H K. Haugen, H Hotop
… splittings and excited state energies of negative ions as well as lifetimes of metastable states are given. … ab initio calculations, atomic negative ions, binding energy, electron affinity, excited states, … Binding Energies in Atomic Negative Ions: III …

Optimal transport and colossal ionic mechano-conductance in graphene crown ethers

July 12, 2019
Author(s)
Subin Sahu, Justin E. Elenewski, Christoph Rohmann, Michael P. Zwolak
… Biological ion channels balance electrostatics and hydration, yielding large ion selectivities alongside high transport rates. These … transport conditions. Crown ethers are known for selective ion adsorption. When embedded in graphene, however, transport … Ion transport, Nanopores, Ion channels, Crown ether …

Nanomechanical properties of polyethylene glycol brushes on gold substrates

February 15, 2012
Author(s)
Gheorghe NMN Stan, Frank W. DelRio, Robert I. MacCuspie, Robert F. Cook
… polyethylene glycol (PEG) were directly anchored onto bare gold substrates in solution. The nucleation kinetics of PEG … Nanomechanical properties of polyethylene glycol brushes on gold substrates …

Liquid Structure with Nano-Heterogeneity Promotes Cationic Transport in Concentrated Electrolytes

October 10, 2017
Author(s)
Oleg Borodin, Liumin Suo, Mallory Gobet, Xiaoming Ren, Fei Wang, Antonio Faraone, Jing Peng, Marco Olguin, Marshall Schroeder, Michael S. Ding, Eric Gobrogge, Arthur von Wald Cresce, Stephen Munoz, Joseph Dura, Steve Greenbaum, Chunsheng Wang, Kang Xu
… a variety of spectroscopic techniques, we evaluated the ion solvation and transport behaviors in aqueous electrolytes … H2O network, via which 40% of Li + are liberated for fast ion transport even in concentration ranges traditionally … shell, molecular dynamics, Small Angle Neutron scattering, ion conductivity, ionic liquid …

NMR Spectroscopy and Multiscale Modeling Shed Light on Ion-Solvent Interactions and Ion Pairing in Aqueous NaF Solutions

September 10, 2024
Author(s)
Gosia Musial, Demian Riccardi, Chris Suiter, Ethan Sontarp, Samantha Miller, Robert Lirette, Kyle Covington-Rehmeier, Avik Mahata, Chris Muzny, Angela Stelson, Kathleen Schwarz, Jason A. Widegren
… The balance between ion solvation and ion pairing in aqueous solutions modulates chemical and … quantitative determination of the distribution of ion-solvation and ion-pairing states remains elusive. Here, … NMR Spectroscopy and Multiscale Modeling Shed Light on Ion-Solvent Interactions and Ion Pairing in Aqueous NaF …

Loss of 45 Da from a2 Ions and Preferential Loss of 48 Da from a2 Ions Containing Methionine in Peptide Ion Tandem Mass Spectra

January 29, 2011
Author(s)
Yamil Simon, Pedatsur Neta, Xiaoyu Yang, Stephen E. Stein
… which correspond to a neutral loss of 45 Da from a 2 ions. From exact mass analysis this loss is ascribed to … formamide (or NH 3 +CO). Elimination of formamide from a 2 ions requires that the ions cyclize. A mechanism for this … other neutral losses, such as H 2 O. However, if the a 2 ion contains methionine, a neutral loss of 48 Da, ascribed to …

Ion Storage Group Website

January 1, 1997
Author(s)
Wayne M. Itano, B E. King, John J. Bollinger, D J. Berkeland
… http://tf.nist.gov/ion/index.htm … Ion Storage Group Website …

Adsorption and Conformation of Serum Albumin Protein on Gold Nanoparticles

February 22, 2011
Author(s)
De-Hao D. Tsai, Frank W. DelRio, Athena M. Keene, Katherine M. Tyner, Robert I. MacCuspie, Tae Joon Cho, Michael R. Zachariah, Vincent A. Hackley
… AFFF, ES-DMA, fluorescence, infrared spectroscopy, BSA, gold, nanoparticle, adsorption, conformation, isotherm … Adsorption and Conformation of Serum Albumin Protein on Gold Nanoparticles …

Detection and identification of sugar alcohol sweeteners by ion mobility spectrometry

June 23, 2016
Author(s)
Thomas Forbes, Edward Sisco, Christopher Browne
… of sugar alcohols sweeteners was demonstrated using ion mobility spectrometry (IMS). IMS provides a valuable … Ion mobility spectrometry, Sugar alcohols, Alternative … Detection and identification of sugar alcohol sweeteners by ion mobility spectrometry …
Displaying 901 - 925 of 4633
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