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Displaying 3651 - 3675 of 74638

Comment on Phys. Rev. Lett. 95, 017201 (2005)

October 12, 2021
Author(s)
J A. Bland, S J. Steinmuller, T Trypiniotis, William F. Egelhoff Jr.
In their article High Temperature Ferromagnetism in GaAs-Based Heterostructures with Mn ? Doping , the authors A. M. Nazmul et al. report finding remarkably high Curie temperatures in Mn delta doped GaAs structures. They base their assessment on the

Comment on Stability of Small Carbon-Nitride Heterofullerenes

October 12, 2021
Author(s)
G Sun, Rui-Hua Xie, M C. Niklaus
In a recent Letter [1], Schultz et, al, proposed the existence of heterofullerenes C n-xN x (40 less then or equal to} n less then or equal to} 50) based on the pattern of the peaks in the mass spectrum of carbon-nitride nanostructures produced by the arc

Comparative Dielectric Behavior of PBFe 1/2 Ta 1/2 O 3 and NaNbO 3 :Gd Relaxor-Like Crystals

October 12, 2021
Author(s)
I P. Raevski, S A. Prosandeev, U Waghmare, V V. Eremkin, V G. Smotrakov, V A. Shuvaeva
Experimental data obtained for PBFe 1/2Ta 1/20 3 (PFT) and NaNbO 3:Gd (NaNbGd) single crystals show a diffused dielectric permittivity peak that is inherent to relaxor ferroelectrics. However some deviations from the normal relaxor properties were also

Composition-based Reduction of Damping in Fe1-xVx (50nm) Thin Films

October 12, 2021
Author(s)
L Cheng, H Song, J O. Rantschler, Robert McMichael, William E. Bailey
The reduction of GHz damping a is a critical and unaddressed need in ferromagnetic materials development. Smith has predicted that the signal-to-noise ratios of nanoscale / Ghz spin electronic sensors will be inversely dependent on the free magnetic layer

Computations of Particle Surface Characteristics Using Optical and X-Ray CT Images

October 12, 2021
Author(s)
E Masad, S Saadeh, T Al-Rousan, Edward Garboczi, D Little
The description of particle surface characteristics is of interest in many disciplines in science and engineering such as powder technology, geology, soil science, and infrastructure materials. Consequently, there is a need to develop methods to quantify

Conformational Isomerism in 1-Heptanal

October 12, 2021
Author(s)
J M. Fisher, L H. Xu, R D. Suenram, Brooks H. Pate, K O. Douglass
The rotational spectrum of 1-heptanal has been recorded over the 10 GHz to 22 GHz region using a pulsed-molecular-beam, Fourier transform microwave spectrometer. The spectrum has been analyzed using the jb95 spectral analysis program. The spectra of

Consensus Characterization of 16 FMR1 Reference Materials: A Consortium Study by the Fragile Xperts

October 12, 2021
Author(s)
Jean A. Wilson, Victoria M. Pratt, Amit Phansalkar, Kasinathan Muralidharan, W E. Highsmith, J C. Beck, Scott Bridgeman, Ebony M. Courtney, Lidia Epp, Andrea Ferreira-Gonzalez, Nick L. Hjelm, Leonard Holtegaard, Mohamed A. Jama, J P. Jakupciak, Monique A. Johnson, Paul Labrousse, Elaine Lyon, Thomas W. Prior, C D. Richards, Kristy L. Richie, Benjamin B. Roa, Elizabeth M. Rohlfs, Tina Sellers, Stephanie Sherman, Karen M. Siegrist, Lawrence M. Silverman, Joanna Wiszniewska, Lisa Kalman
Fragile X (FX) syndrome is caused by expansion of a (CGG)n repeat in the FMR1 gene, occurs in approximately 1:3500 males and causes mental retardation/behavioral problems. Smaller (CGG)n repeat expansions in FMR1, premutations, are associated with

Consistent Estimation of Poisson Intensity in the Presence of Dead Time

October 12, 2021
Author(s)
S X. He, Grace L. Yang, K T. fang, J F. Widmann
Phase Doppler Interferometry (PDI) is a non-intrusive technique frequently used to obtain information about spray characteristics. Understanding spray characteristics is of critical importance in many areas of science, including liquid fuel spray

Content Migration: From Paper to XML Documents

October 12, 2021
Author(s)
K H. Lee, Y C. Choy, S B. Cho, Xiao Tang, V R. Mccrary
¿¿¿With the widespread of XML documents on the Web, there is a growing interest in transforming paper-based documents into XML representations. In this paper, we present a syntactic method for logical structure analysis of documents with multiple pages and

Control of the Frequency Comb From a Mode-Locked Erbium Doped Fiber Laser

October 12, 2021
Author(s)
J Rauschenberger, T M. Fortier, D J. Jones, Jun Ye, Steven T. Cundiff
We show that a stretched-pulse mode-locked fiber laser produces a well-defined frequency comb, providing a compact source of frequency combs and allowing comb-based optical frequency metrology to be extended into the 1.55 m region. This is achieved by

Controllable Catastrophe X-Ray Focusing

October 12, 2021
Author(s)
S M. Durbin, Terrence J. Jach, S. Kim, J. A. Aust
The interaction of waves with inhomogeneous media leads to the natural focusing of light, the channelling of waves into stable caustics such as the pattern of sunlight seen at the bottom of a rippled swimming pool. These effects are also found in surface

Coupling Grain Boundary Motion to Shear Deformation

October 12, 2021
Author(s)
Yuri Mishin, A Suzuki, John W. Cahn
Molecular dynamics (MD) simulations confirm that normal grain boundary (GB) motion must often be coupled to tangential translation of grains and will then produce shear deformation of the lattice traversed by the GB. Conversely, shear stresses applied to a

Creation of Macroscopic Superposition States from Arrays of Bose-Einstein Condensates

October 12, 2021
Author(s)
J A. Dunningham, Karen G. Burnett, R Roth, William D. Phillips
We consider how macroscopic quantum superpositions may be created from arrays of Bose-Einstein condensates. We study a system of three condensates in Fock states, all with the same number of atoms and show that this has the form of a highly entangled

Critical Behavior of a Strain Percolatin Model for Metals with Unstable Locks

October 12, 2021
Author(s)
Y Shim, Lyle E. Levine, R M. Thomson, M Savage
Using a strain percolatin model proposed for the transport of mobile dislocations through a dislocation cell structure in a deforming metal, we have further explored the critical behavior of the model when there are some unstable locks present in the
Displaying 3651 - 3675 of 74638