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Comparative study of normal and branched alkane monolayer films adsorbed on a solid surface. I. Structure
(American Institute of Physics, 2007)
The structure of a monolayer film of the branched alkane squalane (C30H62) adsorbed on graphite has been studied by neutron diffraction and molecular dynamics (MD) simulations and compared with a similar study of the ...
Analysis of the center of mass-, rotational- and intramolecular diffusive motions in a monolayer film of intermediate-length alkane molecules adsorbed on a solid surface
(American Institute of Physics, 2004)
The intramolecular diffusive motions associated with the creation and annihilation of gauche defects in intermediate-length alkane molecules adsorbed on a solid surface are relatively slow and on a time scale of nanoseconds. ...
Carbon stars and silicon carbide
(University of Missouri--Columbia, 2010)
Stars between about 0.8 and 8 times the mass of the Sun will eventually evolve become asymptotic giant branch (AGB) stars, where they pulsate and throw off mass from their atmospheres, forming dust shells in the space ...
A Mission to Explore the Pioneer Anomaly
(arXiv, 2005)
The Pioneer 10 and 11 spacecraft yielded the most precise navigation in deep space to date. These spacecraft had exceptional acceleration sensitivity. However, analysis of their radio-metric tracking data has consistently ...
Nonlocal electrodynamics of linearly accelerated systems
(American Physical Society, 2004)
The measurement of an electromagnetic radiation field by a linearly accelerated observer is discussed. The nonlocality of this process is emphasized. The nonlocal theory of accelerated observers is briefly described and ...
Significance of c /sqrt2 in relativistic physics
(American Institute of Physics, 2004)
In the description of relative motion in accelerated systems and gravitational fields, inertial and tidal accelerations must be taken into account, respectively. These involve a critical speed that in the first approximation ...
Beyond Gravitoelectromagnetism: Critical Speed in Gravitational Motion
(arXiv, 2005)
A null ray approaching a distant astronomical source appears to slow down, while a massive particle speeds up in accordance with Newtonian gravitation. The integration of these apparently incompatible aspects of motion in ...
Spinning particles in the vacuum C metric
(Institute of Physics, 2005)
The motion of a spinning test particle given by the Mathisson-Papapetrou equations is studied on an exterior vacuum C metric background spacetime describing the accelerated motion of a spherically symmetric gravitational ...
Ultrarelativistic motion: inertial and tidal effects in Fermi coordinates
(Institute of Physics, 2004)
Fermi coordinates are the natural generalization of inertial Cartesian
coordinates to accelerated systems and gravitational fields. We study themotion
of ultrarelativistic particles and light rays in Fermi coordinates ...
Dust/gas correlations from Herschel observations
(EDP Sciences, 2010)
Context: Previous Spitzer and IRAS observations of the LMC suggest an excess of FIR emission with respect to the gas surface density traced by 12CO rotational emission lines and H i 21 cm emission. This so-called “FIR ...
One-dimensional photonic crystal: The Kronig-Penney model
(American Physical Society, 2003)
We formulate the photonic band-structure problem for a one-dimensional photonic crystal in terms of the reflection and transmission coefficients, obtaining a transcendental photonic band equation. The reflection and the ...
Does the Self-Trapped Magnetic Polaron Exist in Electron-Doped Manganites?
(American Physical Society, 2004)
We show from ab initio density-functional calculations and model studies that, in the electron-doped manganite LaxCa1-xMnO3 (x≪1), unbound electrons are introduced into the conduction band, which then trap themselves in ...
Comparative study of normal and branched alkane monolayer films adsorbed on a solid surface. II. Dynamics
(American Institute of Physics, 2007)
The dynamics of monolayer films of the n-alkane tetracosane (n-C24H52) and the branched alkane squalane (C30H62) adsorbed on graphite have been studied by quasielastic and inelastic neutron scattering and molecular dynamics ...
Anomalous Silicate Dust Emission in the Type 1 Liner Nucleus of M81
(American Astronomical Society, 2010)
We report the detection and successful modeling of the unusual 9.7μm Si-O stretching silicate emission feature in the type 1 (i.e., face-on) LINER nucleus of M81. Using the Infrared Spectrograph (IRS) instrument on Spitzer, ...
Calculating potentials of mean force and diffusion coefficients from nonequilibrium processes without Jarzynski's equality
(American Institute of Physics, 2006)
In general, the direct application of the Jarzynski equality (JE) to reconstruct potentials of mean force (PMFs) from a small number of nonequilibrium unidirectional steered molecular-dynamics (SMD) paths is hindered by ...
Influence of subunit structure on the oligomerization state of light harvesting complexes: a free energy calculation study
(arXiv, 2005)
Light harvesting complexes 2 (LH2) from Rhodospirillum (Rs.) molischianum and Rhodopseudomonas (Rps.) acidophila form ring complexes out of eight or nine identical subunits, respectively. Here, we investigate computationally ...
Gastrin Releasing Protein Receptor Specific Gold Nanorods: Breast and Prostate Tumor Avid Nanovectors for Molecular Imaging
(American Chemical Society, 2009)
Gastrin releasing protein receptor specific bombesin (BBN) peptide-gold nanoconjugates were successfully synthesized using gold nanorods and dithiolated peptide. The gold nanorod-bombesin (GNR-BBN) conjugates showed ...
Physics-based modeling for RNA foldingPhysics-based modeling for RNA folding
(University of Missouri--Columbia, 2014)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] RNA (ribonucleic acid) molecules play a variety of crucial roles in cellular functions at the level of transcription, translation and gene regulation. ...
Many-body contributions to spin relaxation in semiconductors
(University of Missouri--Columbia, 2013)
Spintronics has the potential to play a significant role in future electronic devices. The success of the field hinges on our ability to maintain and propagate spin signals over various length scales and periods of time. ...
A comprehensive report on preparing and analyzing adsorptive materials suitable for hydrogen and methane storage
(University of Missouri--Columbia, 2014)
Development of low-pressure, high-capacity adsorbent based storage technology for methane, natural gas, and hydrogen as fuel for advanced transportation is necessary in order to address the temperature, pressure, weight, ...