Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

Evidence for cortisol-cortisone metabolism by marine mammal blubber

June 21, 2018

Author(s)

Thomas M. Galligan, Lori Schwacke, Wayne E. McFee, Ashley Russell

Blubber, a specialized form of adipose tissue in marine mammals, has been identified as a useful matrix for the assessment of steroid hormone homeostasis in...

An Iterative Qualitative – Quantitative Sequential Analysis Strategy for Electron-Excited X-ray Microanalysis with Energy Dispersive Spectrometry: Finding the Unexpected Needles in the Peak Overlap Haystack

June 20, 2018

Author(s)

Dale E. Newbury, Nicholas Ritchie

When analyzing an unknown by electron-excited energy dispersive X-ray spectrometry with the entire periodic table possibly in play, how does the analyst...

Robust Extraction of Hyperbolic Metamaterial Permittivity using Total Internal Reflection Ellipsometry

June 20, 2018

Author(s)

Cheng Zhang, Nina Hong, Chengang Ji, Wenqi Zhu, Xi Chen, Amit K. Agrawal, Zhong Zhang, Tom E. Tiwald, Stefan Schoeche, James N. Hilfiker, L. Jay Guo, Henri J. Lezec

Hyperbolic metamaterials are optical materials characterized by highly anisotropic effective permittivity tensor components having opposite signs along...

Quantum-based vacuum metrology at NIST

June 20, 2018

Author(s)

Julia K. Scherschligt, James A. Fedchak, Zeeshan Ahmed, Daniel S. Barker, Kevin O. Douglass, Stephen P. Eckel, Edward T. Hanson, Jay H. Hendricks, Thomas P. Purdy, Jacob E. Ricker, Robinjeet Singh

The measurement science in realizing and disseminating the SI unit for pressure, the pascal (Pa), has been the subject of much interest at NIST. Modern optical...

Systems Design Approach to Low-Cost Coinage Materials

June 20, 2018

Author(s)

Eric Lass, Mark R. Stoudt, Carelyn E. Campbell

A system design approach using an Integrated Computational Materials Engineering (ICME) was used to design three new low-cost seamless replacement coinage...

Improving dielectric nanoresonator array coatings for solar cells

June 19, 2018

Author(s)

Dongheon Ha, Nikolai B. Zhitenev

We introduce single layer silicon dioxide (SiO2) nanosphere arrays as antireflection coatings (ARCs) on a gallium arsenide (GaAs) solar cell. We make macro- and...

Local Structure and Relaxation Dynamics in the Brush of Polymer-Grafted Silica Nanoparticles

June 19, 2018

Author(s)

Yuan Wei, Yifan Xu, Antonio Faraone, Michael J. A. Hore

When grafted to spherical nanoparticles at high grafting densities, polymers adopt a variety of conformations. Due to strong confinement by neighboring chains...

Electroformation in TaOx resistive switching devices by thermal-gradient-induced demixing

June 18, 2018

Author(s)

Andrew Herzing

Chemical Discrimination of Multilayered Paint Cross Sections for Potential Forensic Applications using Time-of-Flight Secondary Ion Mass Spectrometry

June 15, 2018

Author(s)

Shinichiro N. Muramoto, J Greg Gillen, Eric S. Windsor

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) equipped with a bismuth imaging source and an argon gas cluster ion beam (GCIB) was used to image...

Effect of Heat Treatment on the Microstructural Evolution of a Nickel-Based Superalloy Additive-Manufactured by Powder Bed Fusion Laser Sintering

June 15, 2018

Author(s)

Fan Zhang, Lyle E. Levine, Andrew J. Allen, Mark R. Stoudt, Greta Lindwall, Eric Lass, Maureen E. Williams, Yaakov S. Idell, Carelyn E. Campbell

Elemental segregation is a ubiquitous phenomenon in additive-manufactured (AM) parts due to solute rejection and redistribution during the rapid solidification...

Self-assembly and soluble aggregate behavior of computationally designed coiled-coil peptide bundles

June 15, 2018

Author(s)

Jeffrey A. Fagan, Darrin Pochan, Michael Haider, Huixi Zhang, Nairiti Sinha, Jeffrey Saven, Kristi Kiick

Coiled-coil peptides have proven useful in a range of materials applications ranging from the formation of well-defined fibrils to responsive hydrogels. The...

Using a Modular Aperture System to Obtain Annular Dark-Field Image Intensity Distributions as a Function of Scattering Angle.

June 15, 2018

Author(s)

Jason D. Holm

In this contribution, 10 nm-thick non-stoichiometric silicon nitride films were examined in a scanning electron microscope (SEM) using a zero-dimensional solid...

C3a receptor antagonism as a novel therapeutic target for chronic rhinosinusitis

June 15, 2018

Author(s)

Jennifer K. Mulligan, Tucker Williamson, Nicholas Reaves, William Carroll, Sarah Stephenson, Peng Gao, Richard R. Drake, Ben Neely, Rodney J. Schlosser, Carl Atkinson

Background: Innate immune factors, including the complement system, have been implicated in the pathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP...

Extended Hierarchical Solvent Perturbations from Curved Surfaces of Mesoporous Silica Particles in a Deep Eutectic Solvent

June 15, 2018

Author(s)

Joshua A. Hammons, Fan Zhang, Jan Ilavsky

Many applications of deep eutectic solvents (DES) rely on exploitation of their unique yet complex liquid structures at the mesoscopic level. Due to the ionic...

Phased-Locked Two-Color Single Soliton Microcombs in Dispersion-Engineered Si3N4 Resonators

June 15, 2018

Author(s)

Gregory Moille, Qing Li, Sangsik Kim, Daron Westly, Kartik Srinivasan

We propose and theoretically investigate a dispersion-engineered Si3N4 microring resonator, based on a cross-section containing a partially-etched trench, that...

A Data Processing Pipeline for Prediction of Milling Machine Tool Condition from Raw Sensor Data

June 15, 2018

Author(s)

Max K. Ferguson, Kincho H. Law, Raunak Bhinge, Jinkyoo Park, Yung-Tsun Lee

With recent advances in sensor and computing technology, it is now possible to use real-time machine learning techniques to monitor the state of manufacturing...

Phase Field Benchmark Problems for Dendritic Growth and Linear Elasticity

June 15, 2018

Author(s)

Andrea Jokisaari, P W. Voorhees, Jonathan E. Guyer, James A. Warren, O. G. Heinonen

We present the second set of benchmark problems for phase field models that are being jointly developed by the Center for Hierarchical Design (CHiMaD) and the...

3D printing using concrete extrusion: a roadmap for research

June 14, 2018

Author(s)

Scott Z. Jones, Richard Buswell, Wilson Leal de Silva, Justin Dirrenberger

Large-scale additive manufacturing processes for construction utilise computer controlled placement of extruded cement-based mortar to create physical objects...

Ontology-Based Reasoning about the Trustworthiness of Cyber-Physical Systems

June 14, 2018

Author(s)

Edward R. Griffor, David A. Wollman, Martin J. Burns, Claire Vishik, Michael Huth, Marcello Balducinni

It has been challenging for the technical and regulatory com-munities to formulate requirements for trustworthiness of thecyber- physical systems (CPS) due to...

Accurate optical stabilization of a Kerr-microresonator frequency comb

June 14, 2018

Author(s)

Travis Briles, Jordan R. Stone, Tara E. Drake, Daryl T. Spencer, Connor D. Fredrick, Qing Li, Daron A. Westly, Bojan R. Ilic, Kartik A. Srinivasan, Scott A. Diddams, Scott B. Papp

Carrier-envelope-phase stabilization of optical waveforms enables exquisitely precise measurements by way of direct optical-frequency synthesis, coherent...

Coexistence of Superconductivity and Short-Range Double-Stripe Spin Correlations in Te-Vapor Annealed FeTe_1-xSe_x (X less than or equal to} 0.2)

June 14, 2018

Author(s)

Zhijun Xu, J. A. Schneeloch, Ming Yi, Yang Zhao, Masaaki Matsuda, D. M. Pajerowski, Songxue Chi, R. J. Birgeneau, Genda Gu, J. M. Tranquada, Guangyong Xu

In as-grown bulk crystals of Fe 1+yTe 1-xSe x with x less than or equal to} 0.3, excess Fe (y>0) is inevitable and correlates with a suppression of...

Single self-assembled InAs/GaAs quantum dots in photonic nanostructures: the role of nanofabrication

June 13, 2018

Author(s)

Jin Liu, Kumarasiri Konthasinghe, Marcelo I. Davanco, John Lawall, Vikas Anant, Varun Verma, Richard Mirin, Jin Dong Song, Ben Ma, Ze Sheng Chen, Hai Qiao Ni, Zhi Chuan Niu, Kartik Srinivasan

Single self-assembled InAs/GaAs quantum dots are a promising solid-state quantum technology, with vacuum Rabi splitting, single-photon-level nonlinearities, and...

Field-induced polarization rotation and phase transitions 1 in 0.70Pb(Mg1/3Nb2/3)O3-2 0.30PbTiO3 piezoceramic observed by in situ high-energy X-ray scattering

June 12, 2018

Author(s)

Igor Levin, Dong Hou, Tedi-Marie Usher, Mojca Otonicar, Hana Ursic, Barbara Malic, Jacob Jones

Dynamic Production System Identification for Smart Manufacturing Systems

June 12, 2018

Author(s)

Peter O. Denno

Knowledge of process requirements, system capacities, and system reliability are the premises on which control policies are formulated. In dynamic manufacturing...

Modeling Agents as Joint Cognitive Systems in Smart Manufacturing Systems

June 11, 2018

Author(s)

Albert T. Jones, David [email protected] Romero, Thorsten Wuest

Latest innovations and developments in Information and Communication Technologies (ICTs) as well as Operational Technologies (OTs) are changing manufacturing...

Design of an Ultrathin Cold Neutron Detector

June 11, 2018

Author(s)

A. Osovizky, Kevin N. Pritchard, Y. Yehuda-Zada, Jeffrey B. Ziegler, Louis E. Binkley, Peter NMN Tsai, Alan Keith Thompson, Nancy Hadad, M. Jackson, C. Hurlbut, George M. Baltic, Charles Majkrzak, Nicholas C. Maliszewskyj

We describe the design and performance of an ultrathin ( 2mm) cold neutron proportional counter consisting of 6LiF:ZnS(Ag) scintillator in which wavelength...

Internet of Things (IoT) Metrology

June 11, 2018

Author(s)

Jeff Voas, D. Richard Kuhn, Phillip Laplante

The field of metrology has evolved into many classes and viewpoints over centuries of time. What we are suggesting is how that body of knowledge may be...

Design of an Ultrathin Cold Neutron Detector

June 11, 2018

Author(s)

A. Osovizky, Kevin N. Pritchard, Y. Yehuda-Zada, Jeffrey B. Ziegler, Louis E. Binkley, Peter NMN Tsai, Alan Keith Thompson, Nancy Hadad, George M. Baltic, M. Jackson, C. Hurlbut, Charles Majkrzak, Nicholas C. Maliszewskyj

WE describe the designs, fabrication, and performance of an energy analyzing detector package for cold neutron spectrometers at the NIST Center for Neutron...

Ultra-sensitive mid-infrared emission spectrometer using a WSi superconducting nanowire single-photon detector

June 11, 2018

Author(s)

Varun Verma, Martin Stevens, Richard Mirin, Sae Woo Nam, Li Chen, Dirk Schwarzer, Jascha A. Lau

We evaluate the performance of a mid-infrared emission spectrometer operating at wavelengths between 2 and 7 υm based on an amorphous tungsten silicide (a-WSi)...

Precipitation and dissolution of delta and gamma-double-prime during heat treatment of a laser powder-bed fusion produced Ni-based superalloy

June 8, 2018

Author(s)

Eric Lass, Mark R. Stoudt, Maureen E. Williams, Michael B. Katz

One drawback of the laser powder-bed fusion additive manufacturing (AM) technique is the build-up of residual stresses during processing that require a stress...

Was this page helpful?