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Displaying 5351 - 5375 of 73881

Coherent Raman Spectra of the v 1 Mode of 10 BF 3 and 11 BF 3

October 12, 2021
Author(s)
Robynne Kirkpatrick, Tony Masiello, Alfons Weber, J Nibler
High resolution (0.001cm-1) coherent anti-Stokes Raman spectroscopy (CARS) was used to directly examine the n1 symmetric stretching mode of the planar symmetric D3h molecules 10BF3 and 11BF3. Simulations of the spectra were done using n1 rovibrational

Colloquium: Femtosecond Optical Frequency Combs

October 12, 2021
Author(s)
S T. Cundiff, Jun Ye
Recently there has been a remarkable synergy between the technology of precision laser stabilization and modelocked ultrafast lasers. This has resulted in control of the frequency spectrum produced by modelocked lasers, which consists of a regular comb of

Combined Effect of Coherent Z Exchange and the Hyperfine Interaction in Atomic PNC

October 12, 2021
Author(s)
W R. Johnson, M S. Safronova, U I. Safronova
The nuclear spin-dependent parity nonconserving (PNC) interaction arising from a combination of the hyperfine interaction and the coherent, spin-independent, PNC interaction from Z exchange is evaluated using many-body perturbation theory. For the 6s^1/2^

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
Displaying 5351 - 5375 of 73881
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