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Displaying 7326 - 7350 of 143757

Generalized Pseudo-Potentials for Higher Partial Wave Scattering

October 12, 2021

Author(s)

R Stock, A Silberfarb, I H. Deutsch, E L. Bolda

We derive a generalized zero-range pseudo-potential applicable to all partial wave solutions to the Schrodinger equation based on a delta-shell potential in the limit that the shell radius approaches zero. This properly models all higher order multipole

Gentle recoil synthesis of free-radical clusters: Ar-SH via unimolecular photolysis of Ar-H 2 S

October 12, 2021

Author(s)

S R. Mackenzie, O Votava, J B. Fair, David Nesbitt

A novel method for the generation of free-radical clusters is presented based on UV photolysis of the corresponding closed-shell complex. Illusions is provided by the LIF detection of Ar-SH produced by 248 nm excitation of Ar-H 2S. A simple ballistic model

Giant Magnetoresistive Spin-Valve Transpinnor

October 12, 2021

Author(s)

S Bae, S Zurn, William F. Egelhoff Jr., P J. Chen, L Sheppard, E J. Torok, J H. Judy

A giant magnetoresistive (GMR) spin-valve Transpinnor, a new kind of active solid-state magneto-electronic device or spin-transistor, has been fabricated and investigated for the first time using anti-ferromagnetic oxide exchange biased bottom GMR spin

Glass-Infiltrated Alumina and Spinel Ceramic Composites: Residual Stresses and Mechanical Behavior

October 12, 2021

Author(s)

A Saigal, Lin-Sien H. Lum, S Jahanmir

All-ceramic crowns, including glass-infiltrated alumina and spinel composites, are coming into widespread use because of their superior aesthetics and chemical inertness. This study investigates the residual stresses that are developed in these composites

Gravitational Wave Detectors Based on Matter Wave Interferometers (MIGO) Are No Better Than Laser Interferometers (LIGO)

October 12, 2021

Author(s)

A Roura, Dieter Brill, B- L. Hu, Charles Misner, William D. Phillips

Growth of Magnetic Nanowires in an Applied Field

October 12, 2021

Author(s)

R D K. Misra, H Nathani, William F. Egelhoff Jr.

Nanostructured quasi one-dimensional magnetic materials (nanowires) have attracted significant scientific and technological interest because they exhibit unique magnetic properties not displayed by their bulk or nanoparticle counterparts. Nanocrystalline

High Dielectric Permittivity in AFe 1/2 B 1/2 O 3 Nonferroelectric Perovskite Ceramics (A = Ba, Sr, Ca; B= Nb, Ta, Sb)

October 12, 2021

Author(s)

I P. Raevski, S A. Prosandeev, S A. Bogatin, M A. Malitskaya

Afe l/2B 1/20 3 (A- Ba, Sr, Ca; B-Nb, Ta, Sb) ceramics were synthesized and temperature dependencies of the dielectric permittivity were measured at different frequencies. The experimental data obtained show very high values of the dielectric permittivity

High Sensitivity CARS Microscopy With Two Tightly SynChronized Picosecond Lasers

October 12, 2021

Author(s)

J Potman, D J. Jones, J X. Cheng, X. Xie, Jun Ye

We demonstrate a significant improvement in signal-to-noise ratio recovered from coherent anti-Stokes Raman scattering (CARS) spectroscopy/microscopy, using two tightly synchronized picosecond Ti: sapphire lasers. A temporal jitter between the pulse trains

High-Performance Concrete Program at the U.S. National Institute of Standards and Technology

October 12, 2021

Author(s)

J R. Clifton, G J. Frohnsdorff

The National Institute of Standards and Technology (NIST) is carrying out a collaborative program entitled Partnership for High-Performance Concrete Technology (PHPCT) to advance concrete technology and facilitate application of high-performance concrete

High-Resolution Structural Study of Zinc Ion Incorporation at the Calcite Cleavage Surface

October 12, 2021

Author(s)

L Cheng, N Sturchio, Joseph Woicik, K Kemner, P Lyman, Michael Bedzyk

X-ray standing wave triangulation and surface extended X-ray absorption fine structure spectroscopy were used to determine the atomic-scale structure of the Zn 2+ ion incorporated at the CaCO 3 (1014) surface by adsorption from solution. At about 10%

High-Resolution Ultrasonic Thermometer for Radiation Dosimetry

October 12, 2021

Author(s)

Eugene Malyarenko, Joseph Heyman, Heather H. Chen-Mayer, Ronald Tosh

This paper describes recent developments in the area of high-precision This paper describes recent developments in the area of high-precision ultrasonic thermometry with the potential to provide on-site direct determination of radiation dose and its

Highly Phase Stable Modelocked Lasers

October 12, 2021

Author(s)

T M. Fortier, D J. Jones, Jun Ye, Steven T. Cundiff

We report on stabilizing the carrier-envelope phase of modelocked Ti:sapphire lasers. Optimization of the construction of the lasers for ease of phase stabilization is discussed. Results demonstrating long term phase coherence of the generated pulse train

Histopathological Reactions of Calcium Phosphate Cement for Alveolar Ridge Augmentation Containing Hydroxyapatite-Coated Implants in Dog Mandibles

October 12, 2021

Author(s)

A Sugawara, K Fujikawa, S K. Kusama, Shozo Takagi, Laurence Chow

Previous studies have shown that a calcium phosphate cement (CPC), consisting of tetracalcium phosphate and dicalcium phosphate anhydrous, was highly biocompatible and more osteoconductive than presently used hydroxyapatite (Hap)-based materials. The

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