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NIST Authors in Bold

Displaying 1251 - 1275 of 2521

Improved characterization of methane emissions from the U.S. oil and gas supply chain

June 21, 2018

Author(s)

Ramon A. Alvarez, Daniel Zavala-Araiza, David R. Lyon, David T. Allen, Zachary R. Barkley, Adam R. Brandt, Kenneth J. Davis, Scott C. Herndon, Daniel J. Jacob, Anna Karion, Eric A. Kort, Brian K. Lamb, Thomas Lauvaux, Joannes D. Maasakkers, Anthony J. Marchese, Mark Omara, Stephen W. Pacala, Jeff Peischl, Allen L. Robinson, Paul B. Shepson, Colm Sweeney, Amy Townsend-Small, Steven C. Wofsy, Daniel Zimmerle, Steven P. Hamburg

… higher than the U.S. EPA inventory estimate, and over a 20-year time horizon cause roughly the same radiative forcing …

Electronic Properties and Structure of Single Crystal Perylene

June 6, 2018

Author(s)

Sujitra J. Pookpanratana, Katelyn Goetz, Emily G. Bittle, Hamna Haneef, Lin You, Christina A. Hacker, Steven W. Robey, Oana Jurchescu, Ruslan Ovsyannikov, Erika Giangrisostomi

The transport properties of electronic devices made from single crystalline molecular semiconductors outperform those composed of thin-films. To further understand the superiority of these extrinsic properties, an understanding of the intrinsic electronic

Superconducting optoelectronic networks IV: transmitter circuits

May 9, 2018

Author(s)

Jeffrey M. Shainline, Adam N. McCaughan, Sonia M. Buckley, Richard P. Mirin, Sae Woo Nam, Amir Jafari-Salim

… sequence allows neuronal firing up to at least 20 MHz with power density low enough to be cooled easily with …

Temperature-Resolved Infrared Spectral Normal Emissivity of SiC and Pt-10Rh for Temperatures up to 900 C

April 19, 2018

Author(s)

Claus Cagran, Leonard Hanssen, Mart Noorma, Alex Gura, Sergey Mekhontsev

… Pt-10Rh have been measured in the spectral range of 2 - 20 m, over a temperature range of 300 C up to 900 C at normal …

Model Validation Study of Carbon Monoxide Transport due to Portable Generator Operation in an Attached Garage

October 6, 2017

Author(s)

Steven J. Emmerich, William S. Dols

… predictions and measurements were within about 20 % and 30 % respectively when averaged over all cases. …

The UT1 and UTC Time Services Provided by the National Institute of Standards and Technology

September 25, 2017

Author(s)

Judah Levine

… NIST. The network service is realized with approximately 20 servers located at many locations in the US. The servers …

Spin Wave Damping Arising from Phase Coexistence below T c in Colossal Magnetoresistive La 0.7 Ca .03 MnO 3

September 13, 2017

Author(s)

Joel Helton, Susumu K. Jones, Daniel E Parshall, Matthew B. Stone, Dmitry A. Shulyatev, Jeffrey W. Lynn

… meV and reaching a full-width at half-maximum of at least 20 meV. The results are consistent with a model of intrinsic … Coexistence below T c in Colossal Magnetoresistive La 0.7 Ca .03 MnO 3 …

Coulomb drag and counterflow Seebeck coefficient in bilayer-graphene double layers

July 21, 2017

Author(s)

Jiuning Hu, David B. Newell, Jifa Tian, Nikolai N. Klimov, Tailung Wu, Yong Chen

… bilayer-graphene double layers separated by a thin (~20 nm) boron nitride layer and performed Coulomb drag and …

Amplitude sensing below the zero-point fluctuations with a two-dimensional trapped-ion mechanical oscillator

June 29, 2017

Author(s)

Kevin A. Gilmore, Justin G. Bohnet, Brian C. Sawyer, Joseph W. Britton, John J. Bollinger

… protocol demonstrated here can achieve a sensitivity below 20 pm/sqrt(Hz), which will be useful for detecting extremely …

The Effects of Atmospheric and Construction Conditions on Curing Concrete Equivalent Ages

February 19, 2017

Author(s)

G S. Wojcik

… over the deck thickness. They can also vary by more than 20 h through the slab thickness. …

A microfabricated optically-pumped magnetic gradiometer

January 18, 2017

Author(s)

Abigail R. Perry, Sean P. Krzyzewski, John E. Kitching, S. Geller, Sheng D., Svenja A. Knappe

… over a 2 cm baseline of 10 fT/Hz^1/2 at frequencies above 20 Hz. The maximum rejection of magnetic field noise is 1000 …

Adaptive Terahertz Dual Frequency Comb Spectrometer

December 26, 2016

Author(s)

Flavio Caldas da Cruz, Francisco S. Vieira, David F. Plusquellic, Scott A. Diddams

Terahertz dual frequency comb spectroscopy (THz-DFCS) yields high spectral resolution without compromising bandwidth. Nonetheless, the resolution of THz-DFCS is usually limited by the laser repetition rate, which is typically between 80 MHz and 1 GHz. In

A Thickness-Unknown Method for the Low-Loss Dielectric Characterization from Free-Space Scattering Measurements

September 1, 2016

Author(s)

Sung Kim, David R. Novotny, Joshua A. Gordon, Jeffrey R. Guerrieri

… range of 220-325 GHz at incident angles of 0, 10, 20, and 30 degrees. Moreover, an explicit uncertainty …

Correlated Impurities and Intrinsic Spin-Liquid Physics in the Kagome Material Herbertsmithite

August 18, 2016

Author(s)

Tian-Heng Han, M. R. Norman, J.-J. Wen, Jose Rodriguez Rivera, Joel Helton, Collin L. Broholm, Young S. Lee

New low energy inelastic neutron scattering data on the kagome spin liquid ZnCu 3(OD) 6Cl 2 (Herbertsmithite) reveals diffuse spots near wavevectors (100) and 003/2) for energy transfers hw

A Tunable Coupler for Superconducting Microwave Resonators Using A Nonlinear Kinetic Inductance Transmission Line

June 3, 2016

Author(s)

Jiansong Gao, Michael R. Vissers, Johannes Hubmayr, Bockstiegel Clint, Saptarshi Chaudhuri

… lumped-element nonlinear transmission line made from a 20 nm NbTiN film. By injecting a DC current, the nonlinear …

Enhancing Single-Wall Carbon Nanotube Properties Through Controlled Endohedral Filling

May 10, 2016

Author(s)

Jochen I. Campo, Yanmei Piao, Stephanie Lam, Christopher Stafford, Jason K. Streit, Jeffrey R. Simpson, Angela R. Hight Walker, Jeffrey Fagan

… and proposed applications. Encapsulation of over 20 different compounds with distinct chemical structures, …

Core Design Studies on a Low-Enriched Uranium Reactor for Cold Neutron Sources at NIST

May 1, 2016

Author(s)

Zeyun NMN Wu, Robert E. Williams

… The thermal power of the new reactor is designated at 20 MW and the operating cycle of the equilibrium core is set …

Femtosecond synchronization of optical clocks over free-space links

December 11, 2015

Author(s)

Jean-Daniel Deschenes, Laura C. Sinclair, Fabrizio R. Giorgetta, William C. Swann, Esther Baumann, Hugo Bergeron, Michael A. Cermak, Nathan R. Newbury

… variations. Over 50 hours, the time offset is below ±20 fs. Our approach relies on the two-way reciprocity of a …

Diluvian clustering - A fast, effective algorithm for clustering compositional and other data

August 25, 2015

Author(s)

Nicholas Ritchie

… data points. On a typical 2014 vintage computer, a typical 20,000 particle data set can be clustered in a fraction of a …

Physics-based Electro-thermal Saber Model and Parameter Extraction for High-Voltage SiC Buffer IGBTs

September 15, 2014

Author(s)

Tam H. Duong, Allen R. Hefner Jr., Jose M. Ortiz, Sei-Hyung Ryu , Edward VanBrunt, Lin Cheng, Scott Allen, John W. Palmour

… conditions for IGBTs with blocking voltages from 12 kV to 20 kV. The new physics-based model provides both device and …

Microresonator frequency comb optical clock

July 1, 2014

Author(s)

Scott B. Papp, Katja M. Beha, Pascal P. Del'Haye, Franklyn J. Quinlan, Hansuek Lee, Kerry J. Vahala, Scott A. Diddams

Optical frequency combs enable measurement precision at the 20th digit, and measurement accuracy entirely commensurate with their reference oscillator. A new direction in experiments is the creation of ultracompact frequency combs by way of nonlinear

Biology and Genetics of New Autosomal STR Loci Useful for Forensic DNA Analysis

August 19, 2013

Author(s)

John M. Butler, Carolyn R. Steffen

… in April 2011 to expand the U.S. core loci to as many as 20 STRs to enable more global DNA data sharing. Commercial …

Evaluation of dome-input geometry for pyroelectric detectors

June 24, 2013

Author(s)

Jinan Zeng, Leonard M. Hanssen, George P. Eppeldauer

… spectral responsivity scale from near infrared (NIR) to 20 μm. The reflective dome with shiny gold-coating has been …

Report on the Metrics and Standards for Software Testing (MaSST) Workshop 2012

April 22, 2013

Author(s)

Paul E. Black, Elizabeth N. Fong

… Metrics and Standards for Software Testing (MaSST) on June 20, 2012. This workshop was co-located with the IEEE Sixth …

Characterization of Dieseline with the Advanced Distillation Curve Method: Hydrocarbon Classification and Enthalpy of Combustion

January 22, 2013

Author(s)

Thomas J. Bruno, Jessica L. Burger, Raina V. Gough

… combustion engines. In this work we measured blends of 10, 20, 30, 50, 70, 80, and 90 % (vol/vol) gasoline in diesel …

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