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Displaying 476 - 500 of 569

Extinguishment of Cup-Burner Flames in Low Gravity

January 1, 2005
Author(s)
F Takahashi, Gregory T. Linteris, V Katta
… atm (15.4 0.5) % 13.5 % 30 % O2/1g/1 atm (34.0 1.2) % 31.0 % 30 % O2/1g/0.7 atm (32.4 1.1) % 29.9 % 21 % O2/ g/1 atm (21.4 0.7) % 19.1 % …

High Temperature Lead-free Solder for Microelectronics

June 1, 2001
Author(s)
Frank W. Gayle, G Becka, J Badgett, G Whitten, TG Y. Pan, A Grusd, B B. Bauer, R Lathrop, J Slattery, I Anderson, J Foley, D Napp, J D. Mather, C Olson
… to 160 degrees c). Work included preliminary evaluation of 32 Sn-based alloys, a screening of the thermomechanical … alloys, namely Sn-3.5Ag, Sn-4Ag-1Cu, Sn-4Ag-0.5Cu, Sn-2.5Ag-0.8Cu-0.5Sb, …

Size Change of Dendrimers in Concentrated Solution

December 1, 1999
Author(s)
A Topp, Barry J. Bauer, T J. Prosa, R L. Scherrenberg, Eric J. Amis
… of the poly(propylene imine) dendrimers DAB-dendr-(NH 2 ) 23 and DAB-dendr-(NH 2 ) 64 in methanol are investigated with small angle neutron … in dilute solution giving R g (DAB-dendr-(NH 2 ) 32 ) = (12.4 ± 0.2) {Angstrom} and R 8 + (DAB-dendr-(NH 2 ) …

The Rotational Spectrum of Ar-SiH 4 and Ar--SiD 4

January 1, 1999
Author(s)
Y Kawashima, R D. Suenram, Gerald T. Fraser, Francis J. Lovas, Katsuya Hirota
Microwave spectra of Ar-- 28SiH 4, Ar-- 29SiH 4, Ar-- 30SiH 4, and Ar-- 28SiD 4 have been recorded using a pulsed-molecular-beam Fourier-transform microwave spectrometer. The K = 0 and K = 1 components of the J=3

Thermodynamic Properties for the Alternative Refrigerants

June 1, 1998
Author(s)
Mark O. McLinden, Eric W. Lemmon, R. T. Jacobsen
Models commonly used to calculate the thermodynamic properties of refrigerants are summarized. For pure refrigerants, the virial, cubic, Martin-Hou, Benedict-Webb-Rubin, and Helmholtz equations of state and the extended corresponding states model are

The Black Hole Explorer: Instrument System Overview

June 14, 2024
Author(s)
Daniel P. Marrone, Janice Houston, Kazunori Akiyama, Bryan Bilyeu, Don Boroson, Paul Grimes, Kari Haworth, Robert Lehmensiek, Eliad Peretz, Hannah Rana, Laura Sinclair, Sridharan Tirupati Kumara, Ranjani Srinivasan, Edward Tong, Jade Wang, Jonathan Weintroub, Michael D. Johnson
… sensitivity, the front end will instantaneously receive 32 GHz of frequency bandwidth, which will be digitized to 64 …

Controlling solute trapping and solute drag in a phase-field model

March 16, 2023
Author(s)
Arnab Mukherjee, James A. Warren
… system at hand leading to a speed-up by a factor of W(d+2), where, W and d denotes the interface width and dimension, … by a factor of two expedites the computation by 16 and 32 times in two and three dimensions respectively. Finally …

Standard Reference Photometer for the Assay of Ozone in Calibration Atmospheres

October 12, 2021
Author(s)
R J. Paur, A M. Bass, James E. Norris, T J. Buckley
… this cross-section to be about 1.147 x 10 -17 cm 2 /molecule (or equivalently 308.32 atm -1 cm -1 , base e), with a standard uncertainty of 1.0 … called for an instrument with a standard uncertainty of 2 ppbv in the range of 1 ppbv to 100 ppbv and + 2 % in the …

A low-swelling, polymeric mixed conductor operating in aqueous electrolytes

November 30, 2020
Author(s)
Lee Richter, Tommaso Nicolini, Jokubas Surgailis, Achileas Savva, Guillaume Wantz, Olivier Dautel, Georges Hadiziioannou, Natalie Stingelin
… displays a thickness change upon passive swelling of only +2.5 %, compared to +90 % observed for the ubiquitous … as poly(2-(3,3'-bis(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)-[2,2'-bithiophen]-5-yl)thieno[3,2-b]thiophene) (p(g2T-TT)). …

Atomic clock performance beyond Earths gravitational limit

December 6, 2018
Author(s)
William F. McGrew, Xiaogang Zhang, Robert J. Fasano, Stefan A. Schaeffer, Kyle P. Beloy, Daniele Nicolodi, Roger C. Brown, N. Hinkley, G. Milani, Marco Schioppo, T. H. Yoon, Andrew D. Ludlow
The passage of time is tracked by counting oscillations of a suitable frequency reference (e.g., the number of revolutions of Earth around the sun or the number of swings of a pendulum of a grandfather clock). By referencing the oscillations arising from

On the Structure-Property Relationships of Cation-Exchanged ZK-5 Zeolites for CO 2 Adsorption

March 9, 2017
Author(s)
Trong D. Pham, Matthew Ross Hudson, Craig Brown, Raul F. Lobo
… in carbon capture and storage applications. The CO 2 adsorption properties of cation-exchanged Li-, Na-, K-, and … Rietveld refinement of the dehydrated zeolites and the CO 2 dosed samples using synchrotron powder X-ray diffraction. … the highest adsorption capacity at 1 bar with with 32 mol CO 2 /uc at 283 K. Li-, K-, and Na-SK-5 all exhibit …

U.S.-Japan Joint Panel on Wind and Seismic Effects

February 19, 2017
Author(s)
Stephen A. Cauffman
The U.S.-Japan Joint Panel on Wind and Seismic Effects is now entering its 33rd year. The Panel was formed in 1969 under the auspices of the U.S.-Japan Cooperative Program on Natural Resources (UJNR), one of three collateral programs that comprise the U.S

Enhancement of Premixed Methane-Air Flames by Halon 1301 Replacements

May 16, 2015
Author(s)
John L. Pagliaro, Gregory T. Linteris, Peter B. Sunderland
… added CF3Br (Halon 1301), C6F12O (Novec 1230), C3H2F3Br (2-BTP), and C2HF5 (HFC-125). The explosion pressure, for … lean conditions, it increased with added C6F12O or C2HF5 (32% and 14%, at Xa=0.01 and 0.03). Burning velocities at …

Investigation of NaY Zeolite with Adsorbed CO2 by Neutron Powder Diffraction

May 17, 2013
Author(s)
Winnie K. Wong-Ng, James A. Kaduk, Qingzhen Huang, Laura Espinal, Lan (. Li, Jacob W. Burress
… cost for the O-C-O bond angle of 148.3(3)deg by approx. 0.2 eV/CO2. However, this Na-CO2 interaction is not strong enough to cause a 32 bond angle distortion in CO2. It is concluded that the …
Displaying 476 - 500 of 569
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