U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 1576 - 1600 of 4259

Asymmetric Enhanced Intermixing in Co/Ti Bilayer

October 12, 2021
Author(s)
P Sule, L Kotis, L Toth, M. Menyhard, William F. Egelhoff Jr.
… Low-energy ion-beam intermixing has been studied by Auger depth … the occurrence of the asymmetry of intermixing at 2 keV ion energy. At lower ion energies the asymmetry vanishes progressively with the …

Probing Accelerated Salt-Induced Relaxation Dynamics of Laponite Suspensions Using X-Ray Photon Correlation Spectroscopy Measurements and Molecular Dynamics Simulations

December 22, 2022
Author(s)
Sohaib Mohammed, Meishen Liu, Qingteng Zhang, Suresh Narayanan, Fan Zhang, Greeshma Gadikota
… followed by CsCl and MgCl2 salts. The competing effects of ion size and charge on the relaxation behavior are noted. For … ions shows that higher charge dominates the size of the ion. The trends in the relaxation behavior are consistent … suspensions is accelerated in the presence of salts, with ion sizes and charges having a competing effect on the …

Layered Double Hydroxides as Cation Exchange Materials

October 12, 2021
Author(s)
Paul Braterman, Nandika A. D'Souza, Jeffrey W. Gilman, Mickey C. Richardson, Laxmi K. Sahu, Mauro Zammarano
… ago that the solubility of freshly prepared LDH of type M(II)2Al(OH)6Cl.xH2O was dependent on the nature of M(II), and that those metals giving the most insoluble … in a solution of a transition metal salt, such as nickel(II) chloride in water, would lead to complete or partial …

Measurement of 8-Hydroxy-2'-Deoxyguanosine in DNA by High-Performance Liquid Chromatography-Mass Spectrometry: Comparison with Measurement by Gas Chromatography-Mass Spectrometry

February 1, 2001
Author(s)
M. Dizdaroglu, Pawel Jaruga, H Rodriguez
… of four enzymes: Dnase I, phosphodiesterases I and II, and alkaline phosphatase. The atmospheric pressure … MS (IDMS). Results showed that LC/IDMS with selected ion monitoring (SIM) is well suited for identification and … Gas chromatography/isotope-dilution MS with selected-ion monitoring (GC/IDMS-SIM) was also used to measure this …

Crystal Structure of the Class IV Adenylyl Cyclase From Yersinia Pestis

March 1, 2006
Author(s)
N Smith, Sung Kim, Prasad T. Reddy, David T. Gallagher
… is distinct from the previously described folds for class II and class III ACs. The dimeric Yp AC-IV folds into an … sites for substrate and divalent cations. Unlike AC-II and AC-III active sites that utilize a DxD motif for …

On/Off Flurescence Intermittency of Single Semiconductor Quantum Dots

July 1, 2001
Author(s)
M Kuno, D P. Fromm, H F. Hamann, Alan Gallagher, David Nesbitt
… kinetics of fluorescence intermittency in colloidal II-VI (CdSe) semiconductor quantum dots. Two distinct modes … rapid laser absorption/fluorescence cycling, followed by (ii) sustained off episodes (τ off ) where essentially no …

Improved Limits on Variation of the Fine Structure Constant and Violation of Local Position Invariance

May 29, 2007
Author(s)
Tara M. Fortier, Neil Ashby, James C. Bergquist, Marie Delaney, Scott A. Diddams, Thomas P. Heavner, Leo W. Hollberg, Wayne M. Itano, Steven R. Jefferts, K Kim, Windell Oskay, Thomas E. Parker, Jon H. Shirley, Jason Stalnaker, Filippo Levi, Luca Lorini
We report tests of Local Position Invariance (LPI) and constancy of fundamental constants from measurements of the frequency ratio of the 282-nm 199Hg + optical clock transition to the ground-state hyperfine splitting in 133Cs. Analysis of the frequency
Displaying 1576 - 1600 of 4259
Was this page helpful?