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Displaying 126 - 150 of 304

Agent/System Compatibility for Halon 1301 Aviation Replacement

October 20, 1993
Author(s)
Richard G. Gann, E Braun, Thomas G. Cleary, Richard H. Harris Jr., F Horkay, Gregory T. Linteris, G B. McKenna, Marc R. Nyden, Richard D. Peacock, Richard E. Ricker, Mark R. Stoudt, W. K. Waldron
This project has developed measurement methods and provided data for the appraisal of 12 USAF-specified candidate halon 1301 replacements for compatibility with flight systems, people, and the environment. The exposures of metals, elastomers and lubricants

New Magnetic Phases of bcc-Co Thin Films

January 1, 2005
Author(s)
T Monchesky, John Unguris
We have been able to observe two new magnetic phases of ultrathin Co by growing atomically well ordered Co films on cleaved GaAs(110) substrates. For a Co thickness less than 3.4 monolayers (ML), we find a ferromagnetically dead layer associated with the

The control of quality in a comprehensive mass spectral library

May 30, 1993
Author(s)
Anzor I. Mikaia, S G. Lias, Stephen E. Stein
Computer generated "Quality Index" for the selection of spectra for the inclusion to the NIST/EPA/NIH mass spectral library is abandoned. We have undertaken a program to manually examine all spectra in the database. Suspect spectra are first examined to

Nuclear Magnetic Resonance Study of Anion and Cation Dynamics in CsSiH 3

March 31, 2019
Author(s)
R. V. Skoryunov, O. A. Babanova, A. V. Soloninin, A. V. Skripov, J.-N. Chotard, R. Janot, W. S. Tang, Mirjana NMN Dimitrievska, Terrence J. Udovic
… acceleration of [SiH 3 ]- reorientations is found to be 41(4) meV. The 133 Cs NMR results are consistent with the …

Major improvement of ferroelectric and optical properties in Na-doped Ruddlesden-Popper layered hybrid improper ferroelectric compound, Ca3Ti2O7

August 20, 2019
Author(s)
Cong Hang, Wei Fang Liu, Winnie Wong-Ng, Ziongnan Zhang, Yao Jiang, Ping Wu, Baoyuan Tong, Hui Zhao, Shouyu Wang
Ruddlesden-Popper layered Ca3-xNaxTi2O7 (x=0 and 0.15) ceramics were successfully prepared by a conventional solid-state reaction process. The polarization and leakage currents were increased after Na doping. XPS spectra showed an increasing concentration

Guide to Bluetooth Security

May 8, 2017
Author(s)
John Padgette, John Bahr, Mayank Batra, Marcel Holtmann, Rhonda Smithbey, Lidong Chen, Karen Scarfone
Bluetooth wireless technology is an open standard for short-range radio frequency communication used primarily to establish wireless personal area networks (WPANs), and has been integrated into many types of business and consumer devices. This publication

EUV Spectroscopy of Highly Charged Xenon Ions Created Using an Electron Beam Ion Trap

March 27, 2007
Author(s)
K Fahy, E Sokell, G O'Sullivan, A Aguilar, Joshua M. Pomeroy, Joseph N. Tan, John D. Gillaspy
At the NIST Electron Beam Ion Trap (EBIT), extreme-ultraviolet spectra of xenon ions have been recorded using a flat-field spectrometer. The electron beam energy was varied from 180 eV to 8 keV and radiation from charge states Xe6+ to Xe43+ was observed

Measurement of the Optical Extinction Coefficients of Post-Flame Soot in the Infrared

July 1, 2003
Author(s)
J F. Widmann, Jiann C. Yang, Samuel L. Manzello, George W. Mulholland
The optical extinction coefficients of post-flame soot have been measured in the wavelength range 2.8 micrometers to 4.1 micrometers. A laminar diffusion burner was combined with an infrared spectrograph and gravimetric measurements to determine the mass

An Octacalcium Phosphate Forming Cement

April 16, 2010
Author(s)
Milenko Markovic, Laurence C. Chow
… calcium hydroxyapatite (HA) was formed and DTS and P were (9.03 ± 0.48) MPa and (37.05 ± 0.20) vol % after 1 d, … HA were formed and DTS and P were (4.38 ± 0.49) MPa and (41.44 ± 1.25) vol % after 1 d, respectively, (4.38 ± 0.29) … vol % after 3 d, respectively, and (4.30 ± 0.60) MPa and (41.38 ± 1.65) vol % after 7 d, respectively. For each group …
Displaying 126 - 150 of 304
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