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Displaying 601 - 625 of 1910

Comment on "Giant Electromechanical Coupling of Relaxor Ferroelectrics Controlled by Polar Nanoregion Vibrations"

March 22, 2019

Author(s)

Peter M. Gehring, Zhijun NMN Xu, C. Stock, Guangyong NMN Xu, Daniel E Parshall, Leland Weldon Harriger, C. A. Gehring, Xiaobing Li, Haosu Luo

… ferroelectric Pb[(Mg 1/3 Nb 2/3 ) 1-x Ti x ]O 3 with x=0.30 using neutron scattering methods. They argue that this …

Medium-Term Frequency Stability of Hydrogen Masers as Measured by a Cesium Fountain

June 2, 2010

Author(s)

Thomas E. Parker, Steven R. Jefferts, Thomas P. Heavner

… to characterize the medium-term frequency stability (tau = 30 to 90 days) of six hydrogen masers. An unexpected …

Electrostriction of Near-Critical SF 6 in Microgravity

June 1, 1999

Author(s)

G A. Zimmerli, R A. Wilkinson, R A. Ferrell, Michael R. Moldover

… at the temperatures T c + 5 mK, T c + 10 mK, and T c + 30 mK, with T c = 319 K, agree with a calculation based on …

Neutronic Performance Characteristics of Different LEU Fuels in a Proposed NIST Research Reactor

June 1, 2019

Author(s)

Danyal J Turkoglu, Zeyun Wu, Robert E. Williams, Thomas Henderson Newton

… equilibrium cores were calculated for each fuel based on a 30 day reactor cycle at 20 MW thermal power. With its very … an alternate fuel management scheme, a higher power level (30 MW), or a longer cycle (45 days). The research results …

Shape critical properties of patterned Permalloy thin films

December 7, 2015

Author(s)

Robert D. Shull, Y. P. Kabanov, V S. Gornakov, Andrew P. Chen, Valerian I. Nikitenko

… the stripes of the patterned structures, which had 3 um to 30 um widths and -100 um lengths, were visualized by the …

Horizontal Convective Boiling of R134a, R1234yf/R134a, and R1234ze(E)within a Micro-Fin Tube

June 24, 2014

Author(s)

Mark A. Kedzierski, ki-jung park

… essentially identical performance for qualities less than 30 %. The heat transfer coefficient for R1234ze(E) is roughly … 14 %) less than that of R134a for qualities greater than 30 %. The smaller heat transfer coefficient of R1234ze(E) as …

LWA Absorption and Desorption: The Influence on the Microstructure and Transport Properties of Internally Cured Mortars

September 1, 2010

Author(s)

Javier Castro, Ryan Henkensiefken, Tommy Nantung, Dale P. Bentz, Jason Weiss

… results for an internally-cured mortar with a w/c of 0.30 indicate performance that is consistent with a … prepared with a w/c of 0.23 or a paste with a w/c of 0.30. …

Transport of High Boiling-Point Fire Suppressants in a Droplet-Laden Homogeneous Turbulent Flow Past a Heated Cylinder

December 1, 2006

Author(s)

Cary Presser, C Avedisian

… of a cylinder. Results indicated that droplets larger than 30 mm - 50 mm tend to impinge on the cylinder surface or … cylinder, smaller size droplets (generally, of less than 30 mm) are entrained into the recirculation zone. Near the …

Manufacturing USA 2025 Annual Report

March 17, 2026

Author(s)

Christina Jones, Mai Tran, Amelia Stephens

… (covering activities from October 1, 2022, to September 30, 2023) highlights the impact of the national network of 17 …

Certification of Standard Reference Material(R) 1568c Rice Flour

January 15, 2026

Author(s)

Laura Wood, Charles Barber, Colleen Bryan Sallee, Monique Johnson, Shaun Kotoski, Stephen Long, Tomohiro Narukawa, Rick Paul, Nicholas Sharp, John Sieber, Maria Isabel Vega Martinez, James Yen, Lee Yu

… (NIST) SRM 1568c Rice Flour has value assignments for over 30 analytes, including arsenic species. This material is …

Preparing for 6G: Developing best practices and standards for industrial measurements of low-loss dielectrics

May 23, 2023

Author(s)

Lucas Enright, Marzena Olszewska-Placha, Michael Hill, Say Phommakesone, Daisuke Kato, Charles Hill, Hanna Kahari, Chiawen Lee, Chang-Sheng Chen, Nate Orloff, Malgorzata Celuch, Urmi Ray

… With growing interest in millimeter-wave (mmWave, 30 GHz – 300 GHz) technologies, researchers and manufacturers …

A compact mid-infrared dual-comb spectrometer for outdoor spectroscopy

April 9, 2022

Author(s)

Gabriel Ycas, Fabrizio Giorgetta, Jacob T. Friedlein, Daniel Herman, Kevin Cossel, Esther Baumann, Nathan Newbury, Ian Coddington

… in the field. System quality factors of 2×10^6 and 30 hours of continuous operation are demonstrated over a …

Molecular Quantum Magnetism in LiZn 2 Mo 3 O 8

January 15, 2014

Author(s)

M. Mourigal, W. T. Fuhrman, J. P. Sheckelton, A. Wartelle, Jose Rodriguez Rivera, D. L. Abernathy, T. M. McQueen, Collin L. Broholm

… Inelastic neutron scattering at temperatures below 30 K from a powder of LiZn 2 Mo 3 O 8 demonstrates this …

The effect of shade trees on summertime electricity use in Sacramento, California

September 1, 2010

Author(s)

Geoffrey Donovan, David Butry, Joshua D. Kneifel

… common energy-conservation measures. We demonstrate that a 30-year old tree planted on the west side of a house in …

High Spectral purity oscillator at 40 GHz: Design using air-dielectric Cavity

June 2, 2010

Author(s)

Archita Hati, Craig W. Nelson, Billy F. Riddle, David A. Howe

… incorporate (1) unloaded cavity quality factor (Q) of 30,000, (2) high coupling coefficient, (3) large carrier …

Size Measurement of Nanoparticles using Atomic Force Microscopy

October 1, 2009

Author(s)

Jaroslaw Grobelny, Frank W. DelRio, Pradeep Namboodiri, Doo-In Kim, Vincent A. Hackley, Robert F. Cook

… Materials RM 8011 (nominally 10 nm particles), RM 8012 (30 nm), and RM 8013 (60 nm). …

Modeling the Water-R134a Partition Coefficients of Organic Solutes Using a Linear Solvation Energy Relationship

October 16, 2008

Author(s)

A F. Lagalante, A M. Clarke, Thomas J. Bruno

… provides an average absolute relative deviation of 30 percent in the prediction of the water-134a partition …

NIST/ACerS Crystalline Silica Workshop: A Synopsis

October 16, 2008

Author(s)

Stephen W. Freiman, R Haber, J Flatley

… a summary of a Workshop held in Gaithersburg, MD, on May 30-31, 2002, to discuss technical issues relative to the …

Vapor-Liquid Equilibrium, Coexistence Curve, and Critical Locus for Pentafluoroethane +1,1,1,2-Terafluoroethane (R-125+R-134a)

October 16, 2008

Author(s)

Yukihiru Higashi

… The critical temperatures and critical densities of a 30 mass% R-125 and 70 mass% R-125 mixture were determined …

Split-Post and Split-Cylinder Resonator Techniques: A Comparison of Complex Permittivity Measurement of Dielectric Substrates

April 22, 2008

Author(s)

Michael D. Janezic, Jerzy Krupka

… ceramic (LTCC) substrates over the frequency range of 1 to 30 GHz. The capabilities and limitations of the split-post …

Microwave Spectra of Molecules of Astrophysical Interest XXVI. Acetic Acid (CH 3 COOH)

February 19, 2008

Author(s)

Vadim V. Ilyushin, I Kleiner, Francis J. Lovas

… and vt = 1 states, covering rotational quantum numbers J = 30, and |Ka| = 15. …

Free Space Antenna Factors through the Use of Time-Domain Signal Processing

September 1, 2007

Author(s)

Dennis G. Camell, Robert Johnk, David R. Novotny, Chriss A. Grosvenor

… are explained and data are provided for frequencies from 30 MHz to 9GHz. We investigate time gating of dense frequency …

Wavelength bistability in two-section mode-locked quantum-dot diode lasers

June 1, 2007

Author(s)

Mingming M. Feng, N. A. Brilliant, Steven T. Cundiff, Richard Mirin, Kevin L. Silverman

We report a two-section mode-locked quantum dot laser with an emission wavelength that is bistable with respect to applied bias on the saturable absorber region. The two stable lasing wavelengths for this device are 1173 nm and 1166 nm with a power

Chip-Scale Atomic Clocks at NIST

August 7, 2005

Author(s)

John E. Kitching, Svenja A. Knappe, Li-Anne Liew, John Moreland, Hugh Robinson, P Schwindt, V Shah, Vladislav Gerginov, Leo W. Hollberg

… eventually have a volume of 1 cm 3 , dissipate less than 30 mW of electrical power and maintain a fractional frequency …

Characterisation of the Response of Chromium-Doped Alumina Screens in the Vacuum Ultraviolet Using Synchrotron Radiation

December 1, 2002

Author(s)

James K. McCarthy, A Baciero, B Zurro, Uwe Arp, Charles Tarrio, Thomas B. Lucatorto, A Morono, P Martin, E R. Hodgson

… quantum efficiency curves for the energy range from 30 to 300 eV. A model is presented to explain the structure …

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