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Search Publications

NIST Authors in Bold

Displaying 2026 - 2050 of 4260

Sheath Model for Radio-Frequency-Biased, High-Density Plasmas, Valid for all O/O Iota

December 1, 2000
Author(s)
Mark A. Sobolewski
… (rf) bias applied at frequencies ω comparable to ω i , the ion plasma frequency at the edge of the sheath. The model treats ion dynamics using fluid equations, including all … than that obtained by models that neglect time-dependent ion dynamics. In particular, differences of as much as 40-50% …

Nitration of alkyl substituted 4-aryl(benzoyl)pyridynes

May 1, 1982
Author(s)
Anzor I. Mikaia, Nikolay A. Prostakov, Anatolyi Soldatenkov, AP Krapivko, AA Fomichev, AA Ustenko
… Peri-effect leading to a base peak of [M-NO2] ion in the spectra of dinitro diarenes is described along …

Chapter: Structure and phase behavior of polyampholytes and polyzwitterions

March 4, 2022
Author(s)
Phillip Pickett, Yuanchi Ma, Vivek Prabhu, Michael Lueckheide, Nicholas Posey
… the entire polymer structure. These special classes of ion-containing polymers have many applications enabled by … the unique solution-responsive behaviors of these ion-containing polymers and how their chemistry is used to …

Synthesis and Transport Properties of Fe2SnSe4

November 2, 2017
Author(s)
Kaya Wei, Joshua Martin, George S. Nolas
Fe2SnSe4 was synthesized by elemental reaction and densified using hot pressing in order to investigate the transport properties. It crystallizes in the orthorhombic space group Pnma with the olivine-type crystal structure. Our report describes results and

A DATA FLOW IMPLEMENTATION OF AGENT-BASED DISTRIBUTED GRAPH SEARCH

November 4, 2009
Author(s)
Imad Hamchi, Mathieu Hoarau, Antoine Fillinger, Nicolas Crouzier, Lukas Diduch, Martial Michel, Vincent M. Stanford
… discuss our implementation using the NIST Data Flow System II, and show good scalability of our parallel search …

Polyelectrolyte association and solvation

July 10, 2018
Author(s)
Alexandros Chremos, Jack F. Douglas
There has been significant interest in the tendency of highly charged particles having the same charge to form dynamic clusters in solution, but an accepted theoretical framework that can account for this ubiquitous phenomenon has been slow to develop. The

Temperature dependent 29Si incorporation during deposition of highly enriched 28Si films

November 16, 2017
Author(s)
Kevin J. Dwyer, Hyun S. Kim, David S. Simons, Joshua M. Pomeroy
… into highly enriched 28Si films deposited by hyperthermal ion beams at elevated temperatures in the dilute presence of … in situ beyond 99.99998 % 28Si onto Si(100) using an ion beam deposition system and seek to systematically vary … measure the impact on quantum coherence. We use secondary ion mass spectrometry to measure the residual 29Si isotope …

Interpretation of Effects at the Static Fatigue Limit of Soda-Lime-Silicate Glass

December 1, 2005
Author(s)
Theo Fett, J -. Guin, Sheldon M. Wiederhorn
… layer is built up on the crack surface as a consequence of ion exchange at the crack tip. This model extends the one presented earlier by Bunker and Michalske. Ion exchange between hydronium (H3O+) in the solution and … by the basic solutions that form as a consequence of ion exchange; for the fact that crack tip bifurcation is …

2,5-Dihydroxybenzoic Acid: Laser Desorption/Ionisation as a Function of Elevated Temperature

March 1, 2005
Author(s)
William E. Wallace, Mark Arnould, R Knochenmuss
… dependence of laser desorption/ionization (LDI) ion yields has been measured for 2,5-dihydroxybenzoic acid … C using time-of-flight mass spectrometry. A steep rise in ion production occurs at 90 C, achieving a maximum between … of the sample into the vacuum. The overall trend in ion production is well described by a comprehensive two-step …
Displaying 2026 - 2050 of 4260
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