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Displaying 1726 - 1750 of 3842

Understanding and Optimizing the MALDI Process Using a Heated Sample Stage: a 2,5-Dihydroxybenzoic Acid Study

January 1, 2004
Author(s)
Mark Arnould, William E. Wallace, R Knochenmuss
… during LD experiments was raised from +20C to +160C and ion production measured as a function of temperature, while a … ([2DHB-2H2O+H]+) or di-esterification. The graph of total ion production remains constant from 20?C until 60?C, where … it increases almost exponentially and maximizes at 100C. Ion production at this point is 3 times that at room …

Short Fundamental Equations of State for 20 Industrial Fluids

April 11, 2006
Author(s)
Eric W. Lemmon, Roland Span
… fluids acetone, carbon monoxide, carbonyl sulfide, decane, hydrogen sulfide, isohexane, isopentane, krypton, neopentane, … decane, density, equation of state, fundamental equation, hydrogen sulfide, isohexane, isopentane, krypton, neopentane, …

Etch induced microwave losses in titanium nitride superconducting resonators

June 25, 2012
Author(s)
Martin O. Sandberg, Jeffrey S. Kline, Martin P. Weides, David S. Wisbey, David P. Pappas
… were investigated: fluorine- and chlorine-based reactive ion etches and an argon-ion mill. At high microwave probe powers, the reactive etched resonators showed low internal loss, whereas the ion- milled samples showed dramatically higher loss. At …

Pores in Marcellus Shale: A Neutron Scattering and FIB-SEM Study

January 26, 2015
Author(s)
Xin Gu, David R. Cole, Gernot Rother, David F. Mildner, Susan L. Brantley
… plane of bedding. Neutron scattering combined with focused ion beam scanning electron microscope (FIB-SEM) reveals that … focused ion beam electron microscopy, nitrogen gas adsorption, …

Self-terminated Electrodeposition of Iridium Electrocatalysts

September 16, 2015
Author(s)
Thomas P. Moffat
… of bimetallic catalysis required for a sustainable hydrogen economy. Semi-coherent Ir films were deposited on … match or exceed the best reported activity metrics for hydrogen oxidation in alkaline media and water splitting in …

CCQM-P151 Draft A Report Pilot Study CCQM P151 Halocarbons in Dry Whole Air

May 28, 2014
Author(s)
George C. Rhoderick, Franklin R. Guenther, David L. Duewer, Jeongsoon Lee, Jin S. Kim, Bradley Hall, Ray Weiss, Christina Harth, Stefan Reimann, Martin Vollmer
… 11), and 1,1,2 trichlorotrifluoroethane (CFC 113); the hydrogen chlorofluorocarbons (HCFCs) difluorochloromethane … (HCFC 22) and difluorochloroethane (HCFC 142b); and the hydrogen fluorocarbon (HFC) 1,1,1,2 tetrafluoroethane (HFC …

Outgassing rate comparison of seven geometrically similar vacuum chambers of different materials and heat treatments

April 23, 2021
Author(s)
James A. Fedchak, Julia Scherschligt, Sefer Avdiaj, Daniel Barker, Stephen Eckel, Ben Bowers, Scott O'Connell, Perry Henderson
… We have measured the water and hydrogen outgassing rates of seven vacuum chambers of … were closer to that of 304L, Ti being slightly lower. Hydrogen outgassing rates were measured using the … chambers with no vacuum-fire heat treatment have larger hydrogen outgassing rates than the other chambers, with …

Common Mass Spectral Fragments Lost

June 22, 2012
Author(s)
Thomas J. Bruno, Paris D. Svoronos
… The listed fragments include only combination of carbon, hydrogen, oxygen, nitrogen sulfur, and the halogens. …
Displaying 1726 - 1750 of 3842
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