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Displaying 1351 - 1375 of 3672
Christopher Szakal, Steven Hues, J Greg Gillen, Joe Bennett
Cluster ion beams are being routinely utilized in secondary ion mass spectrometry (SIMS) for molecular depth profiling analyses, including the generation of three-dimensional data sets. Certain sample targets, such as soft organic matrices, often require
We report a simple strategy to control the pressure-driven flow rates from fluid reservoirs to a microchip in an efficient and compact fashion. We demonstrate that using a floating reservoir, less than 1 percent change in flow rate per ml of delivered
Mariona Coll Bau, Curt A. Richter, Christina Hacker
Fabrication with Flip-Chip Lamination , Mariona Coll, DR Hines, CA Richter, CA Hacker, MRSEC surface physics colloquium, University of Maryland, College Park, 10-09.
The SRM Spotlight is a newsletter published by the Measurement Services Division for users of NIST standard reference materials. The Spotlight announces new reference materials and provides information about their use. In addition, this newsletter contains
We compare experimental and predicted thermophysical properties of two samples of rocket propellant RP-1 obtained from different batches of RP-1 that exhibit compositional variations. One sample is atypical, due to a high olefin content. The effect of the
A highly conserved 35 nucleotide RNA stem-loop, the dimerization initiation site (DIS), in the 5 untranslated region (UTR) of the human immunodeficiency virus type I (HIV-1) genome has been identified as the sequence primarily responsible for initiation of
Tinh Nguyen, Aline Granier, Kristen L. Steffens, Hajin Lee, Naomi Eidelman, Jonathan W. Martin
We have developed a novel method to covalently functionalize carbon nanotubes (CNTs) that carry free isocyanate (N=C=O) groups. NCO-functionalized CNTs (NCO-fCNTs) are very desirable, because the NCO group is highly reactive with hydrogen-active groups
Zenkevich G. Igor, Valeri I. Babushok, Peter J. Linstrom, Edward White V, Stephen Stein
The effective use of gas chromatographic retention data presented in the form of reten¬tion indices (RI) requires the development of a compre¬hensive structure-based digital archive of retention parameters. Development of such an archive includes the
The decomposition kinetics of the kerosene-based rocket propellants RP-1 and RP-2 was studied. For RP-2, decomposition reactions were performed at 375, 400, 425, and 450 °C. For RP-1, decomposition reactions were only performed at 450 °C because we had
The thermal decomposition of RP-2 with three potential stabilizing additives was investigated. The additives were 1,2,3,4-tetrahydroquinoline (THQ), 1,2,3,4-tetrahydronaphthalene (tetralin) and the additive package that is used to make JP-8+100 (herein
Gradient elution moving boundary electrophoresis (GEMBE) is a recently described technique for electrophoretic separations in short (1 cm 3 cm) capillaries or microchannels. With GEMBE, the electrophoretic migration of analytes is opposed by a bulk