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NIST Authors in Bold

Displaying 651 - 675 of 3757

Cluster Primary Ion Beam Secondary Ion Mass Spectrometry for Semiconductor Characterization

January 1, 2001
Author(s)
John G. Gillen, S V. Roberson, Albert J. Fahey, Marlon L. Walker, J Bennett, R Lareau
… We are evaluating the use of polyatomic and cluster primary ion beams for characterization of semiconductor materials by secondary ion mass spectrometry using both magnetic sector and time-of-flight SIMS instruments. Primary ion beams of SF 5 +, C 8 - and CsC 6 - have been used to …

Emergent Electric Field Control of Phase Transformation in Oxide Superlattices

February 1, 2020
Author(s)
Di Yi, Yujia Wang, Olaf M. J. van t'Erve, Liubin Xu, Hongtao Yuan, Michael J. Veit, Purnima P. Balakrishnan, Yongseong Choi, Alpha T. N'Diaye, Padraic Shafer, E. Arenholz, Alexander Grutter, Haixuan Xu, Pu Yu, Berend T. Jonker, Yuri Suzuki
… can generate large electric fields and voltage-driven ion transfer 1,2 , has been identified as a powerful means to … properties, by controlling the transfer of oxygen and hydrogen ions. Strikingly, this phase transformation is … ionics, magnetism, oxide, superlattice, hydrogen, neutron scattering, phase transition, ionic liquid, …

Recent experiments in trapped-ion quantum information processing at NIST

May 1, 2006
Author(s)
J Chiaverini, Murray D. Barrett, Brad R. Blakestad, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel H. Knill, C. Langer, Dietrich G. Leibfried, R Ozeri, Tobias Schaetz, David J. Wineland
… Recent experiments in trapped-ion quantum information processing at NIST …

Recent experiments in trapped-ion quantum information processing at NIST

May 1, 2006
Author(s)
J Chiaverini, Matthew P. Barrett, Brad R. Blakestad, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel H. Knill, C. Langer, Dietrich G. Leibfried, R Ozeri, T Schaetz, David J. Wineland
… Recent experiments in trapped-ion quantum information processing at NIST …

Inhibition of cellular proliferation and enhancement of hydrogen peroxide production in fibrosarcoma cell line by weak radio frequency magnetic fields

September 23, 2014
Author(s)
Pablo Castello, Iain Hill, Lucas Portelli, Frank Barnes, Robert J. Usselman, Carlos Martino
… effects of weak radio frequency (RF) magnetic fields on hydrogen peroxide (H2O2) production and cellular growth rates … field effects, cellular growth curves, cancer cells, hydrogen peroxide, radical pair mechanism … Inhibition of cellular proliferation and enhancement of hydrogen peroxide production in fibrosarcoma cell line by …

Vacancy-Hydrogen Defects in Aluminum Formed During Aqueous Dissolution

September 16, 2010
Author(s)
K. R. Hebert, J. Ai, Gery R. Stafford, K. M. Ho, C. Z. Wang
… of aluminum is accompanied by extensive absorption of hydrogen, along with formation of hydride and voids. We used … mechanisms leading to either interstitial or vacancy-hydrogen (Vac-H) defects, and to relate defect formation to … with a high fraction of dissolved Al atoms forming vacancy-hydrogen (Vac-H) defects. Electrochemical potential …

Complete collision data set for electrons scattering on molecular hydrogen and its isotopologues: I. Fully vibrationally-resolved electronic excitation of H2(X 1O+g ).

June 16, 2020
Author(s)
Liam H. Scarlett, D Fursa, Mark C. Zammit, Igor Bray, Yuri Ralchenko, Kayla D. Davie
… for electron-impact electronic excitation of molecular hydrogen suitable for implementation in collisional-radiative … electron-impact excitation, hydrogen molecule, cross sections, molecular convergent close … collision data set for electrons scattering on molecular hydrogen and its isotopologues: I. Fully …

Estimation of Concentration and Bonding Environment of Water Dissolved in Common Solvents Using Near Infrared Absorptivity

October 1, 1998
Author(s)
Brian Dickens, Sabine H. Dickens
… Ņ2 + Ņ3 combination band of water varies with the type of hydrogen bonding of the water molecule because the shape of the NIR absorption envelope changes with the hydrogen bonding.Because the integrated NIR absorptivity of … the NIR absorption envelope reflects the distribution of hydrogen bonding of the water. The shape and location of the …

Experimental and Theoretical Evidence of Hydrogen Doping in Solution Processed Indium Gallium Oxide via Polymer Incorporation

July 23, 2020
Author(s)
Wei Huang, Joshua Tedesco, Po-Hsiu Chien, Kyle McMillen, Li Zeng, Subhrangsu Mukherjee, Binghao Wang, Yao Chen, Gang Wang, Yang Wang, Yanshan Gao, Michael Bedzyk, Dean DeLongchamp, Julia E. Medvedeva, Yan-Yan Hu, Tobin Marks, Antonio Facchetti
… presence in the IGO solution precursor leads to optimal hydrogen doping in IGO films, suppressing the localization of … work proposes a completely new route to achieve efficient hydrogen doping in solution processed MOs and holds the … Experimental and Theoretical Evidence of Hydrogen Doping in Solution Processed Indium Gallium Oxide …

Discriminative potential of ion mobility spectrometry for the detection of fentanyl and fentanyl analogues relative to confounding environmental interferents

September 27, 2019
Author(s)
Thomas Forbes, Jeffrey Lawrence, Jennifer R. Verkouteren, R. Michael Verkouteren
… discriminative potential, sensitivity and specificity, of ion mobility spectrometry (IMS) for the detection of fentanyl … in desorption and drift tube temperatures, reactant ion dopant chemistry, and analysis time. This work identified … Ion mobility spectrometry, Illicit narcotics, Fentanyl, …

On the Risk of False Positive Identification Using Multiple Ion Monitoring in Qualitative Mass Spectrometry: Large-Scale Intercomparisons With a Comprehensive Mass Spectral Library

June 1, 2006
Author(s)
Stephen E. Stein, David N. Heller
… out by comparing a few selected ions acquired by multiple ion monitoring (MIM), with due allowance for expected … roughly one order of magnitude for each additional ion selected. Our computations also showed that false … identification, mass spectral library, multiple ion monitoring (MIM), qualitative mass spectrometry …

Direct Verification of Hydrogen Termination of the Semiconducting Diamond (111) Surface

July 1, 1982
Author(s)
B Waclawski, Daniel T. Pierce, Nils Swanson, Robert Celotta
… has been used to identify the vibrational modes of hydrogen on the semiconducting diamond surface providing the … evidence that the (111) 1X1 surface is terminated by hydrogen. The vibrational loss spectrum from the … diamond. Exposure of this reconstructed surface to atomic hydrogen results in a loss spectrum which is essentially …

A Critical Compilation of Experimental Data on the 1s2l2l0 Core-Excited States of Li-like Ions from Carbon to Uranium

October 7, 2022
Author(s)
Yuri Ralchenko, Alexander Kramida, Vladimir Azarov
… of energy levels of the 1s2l2l0 core-excited states for ions along the Li isoelectronic sequence from carbon to … levels of the 1s2l2l0 core-excited states of Li-like ions. The compiled experimental data include uncertainty … Spectroscopy, Energy Levels, Transition Energies, Li-like ions, Critical Compilation, Core-Excited States …

A Critical Compilation of Experimental Data on the 1s2l2l0 Core-Excited States of Li-like Ions from Carbon to Uranium

May 25, 2022
Author(s)
V. I. Azarov, Alexander Kramida, Yuri Ralchenko
… of energy levels of the 1s2l2l' core-excited states for ions along the Li isoelectronic sequence from carbon to … levels of the 1s2l2l' core-excited states of Li-like ions. The compiled experimental data include uncertainty … Spectroscopy, Energy Levels, Transition Energies, Li-like ions, Critical Compilation, Core-Excited States …

Solvation Structure of Ions in Water

February 14, 2007
Author(s)
Raymond D. Mountain
… Molecular dynamics simulations of ions in water are reported for solutionsof varying solute … trends inproperties as the size and charge density of the ions changes.The emphasis is on how the structure of water is modified by the presenceof the ions and how many water molecules are present in the first …

Mechanism of Gas-Phase Hydrogenation of Alicyclic Ketones on Iron Catalyst: Effective

May 1, 1985
Author(s)
Anzor I. Mikaia, Leonid S. Glebov, Vladimir Smetanin, Vladimir G. Zaikin, George A. Kliger, Sergai Loktev
… Mechanism of gas phase hydrogenation of cyclopentanone and cyclohexanone over a … of reaction products. It is established that cyclanone hydrogenation reactions proceed both via ketonic and enolic … Mechanism of Gas-Phase Hydrogenation of Alicyclic Ketones on Iron Catalyst: Effective …

High Fidelity Universal Gate Set for 9Be+ Ion Qubits

August 4, 2016
Author(s)
John P. Gaebler, Ting R. Tan, Yong Wan, Yiheng Lin, Ryan S. Bowler, Adam C. Keith, Scott Glancy, Kevin Coakley, Emanuel Knill, Dietrich Leibfried, David J. Wineland
… High Fidelity Universal Gate Set for 9Be+ Ion Qubits …

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 …

Microstructure effects on the fracture surface resistance of base metal in line pipe steels in high pressure H2 gas

April 29, 2025
Author(s)
Andrew LeBoeuf, Santigopal Samanta, Joseph Ronevich, Christopher San Marchi, Zachary Buck, Matthew Connolly, Lawrence Cho, Kip Findley
… Cost-effective transportation of gaseous hydrogen requires the use of long-distance low-carbon steel … exhibit decreased fracture resistance due to exposure to hydrogen, recent data shows that fracture resistance can vary … the fracture response of modern pipeline grades in hydrogen gas. ASTM E1820 fracture toughness tests were …

Assessing girth weld quality of pipeline steels and their susceptibility to hydrogen embrittlement

August 28, 2024
Author(s)
Zack Buck, Newell Moser, Nicholas Derimow, May Ling Martin, Damian Lauria, Enrico Lucon, Douglas Stalheim, Peter Bradley, Matthew Connolly
… Hydrogen has long been considered a viable carbon-free option … and alternative technologies. However, the effects of hydrogen-assisted damage mechanisms that result in the … reduction in ductility, and fracture when exposed to hydrogen. Predicting lifetimes of pipelines can be difficult …

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 …

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 …
Displaying 651 - 675 of 3757
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