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Search Publications

NIST Authors in Bold

Displaying 1101 - 1125 of 143604

Cross-Sectional Melt Pool Geometry of Laser Scanned Tracks and Pads on Nickel Alloy 718 for the 2022 Additive Manufacturing Benchmark Challenges

May 7, 2024
Author(s)
Jordan Weaver, David Deisenroth, Sergey Mekhontsev, Brandon Lane, Lyle E. Levine, Ho Yeung
AM Bench is a NIST-led organization that provides a continuing series of additive manufacturing (AM) benchmark measurements, challenge problems, and conferences with the primary goal of enabling modelers to test their simulations against rigorous, highly

Hyperspectral dark-field microscopy of human breast lumpectomy samples for tumor margin detection in breast-conserving surgery

May 7, 2024
Author(s)
Jeeseong Hwang, Philip Cheney, Stephen Kanick, Hanh Le, David McClatchy, Helen Zhang, John Lu, Tae Joon Cho, Kimberly Briggman, David W. Allen, Wendy A. Wells, Brian Pogue
Hyperspectral dark-field microscopy (HSDFM) and data cube analysis algorithms demonstrate successful classification of various tissue types, including the detection of carcinoma regions in human post-lumpectomy breast tissues excised during breast

JARVIS-Leaderboard: A Large Scale Benchmark of Materials Design Methods

May 7, 2024
Author(s)
Kamal Choudhary, Daniel Wines, Kevin Garrity, aldo romero, Jaron Krogel, Kayahan Saritas, Panchapakesan Ganesh, Paul Kent, Pascal Friederich, Vishu Gupta, Ankit Agrawal, Pratyush Tiwary, ichiro takeuchi, Robert Wexler, Arun Kumar Mannodi-Kanakkithodi, Avanish Mishra, Kangming Li, Adam Biacchi, Francesca Tavazza, Ben Blaiszik, Jason Hattrick-Simpers, Maureen E. Williams
Reproducibility and validation are major hurdles for scientific development across many fields. Materials science in particular encompasses a variety of experimental and theoretical approaches that require careful benchmarking. Leaderboard efforts have

Laser tracker and terrestrial laser scanner range error evaluation by stitching

May 7, 2024
Author(s)
Balasubramanian Muralikrishnan, Braden Czapla, Vincent Lee, Craig Shakarji, Daniel S. Sawyer, Saure Matthias
Laser trackers (LTs) are dimensional measurement instruments commonly employed in the manufacture and assembly of large structures. Terrestrial laser scanners (TLSs) are a related class of dimensional measurement instruments more commonly employed in

Recovery pathway assessment of recycled HDPE for circular economy: Shorter-life vs longer-life products

May 7, 2024
Author(s)
Buddhika Hapuwatte, Ashley Hartwell, Matthew Triebe, Abheek Chatterjee, Nehika Mathur, Daniel Figola, Katherine Morris
High Density Polyethylene (HDPE) is a highly recyclable thermoplastic comprising 17% of all plastic produced. Yet, demand for recycled HDPE (r-HDPE) has outrun availability, partly due to manufacturers' interest in meeting sustainability goals and recycled

Inconclusive Decisions and Error Rates in Forensic Science

May 4, 2024
Author(s)
Henry Swofford, Steven Lund, Hariharan K. Iyer, John Butler, Johannes A. Soons, Robert M. Thompson, Vincent Desiderio, JP Jones, Robert Ramotowski
In recent years, there has been discussion and controversy relating to the treatment of inconclusive decisions in forensic feature comparison disciplines when considering the reliability of examination methods and results. In this article, we offer a brief

Inconclusive Decisions and Error Rates in Forensic Science

May 4, 2024
Author(s)
Henry Swofford, Steven Lund, Hariharan Iyer, John Butler, Johannes Soons, Robert Thompson, Vincent Desiderio, JP Jones, Robert Ramotowski
Conference Presentation based on technical paper in ERB (Control Number: N2024-0457).

Interfacial Magnetic Characteristics of Nearly Compensated Gadolinium Iron Garnet

May 4, 2024
Author(s)
Karthik Srinivasan, Alexander Grutter, Thomas Gage, P. Quarterman, Christy Kinane, Andrew Caruana, Guichuan Yu, Javier Garcia-Barriocanal, Sean Langridge, Bethanie Stadler
Reports on spin Hall magnetoresistance, magnonic spin currents from thermal gradients, and spin transfertorque magnetic random-access memory using compensated ferrimagnets largely discuss bulk magnetization but lack consideration of depth profiles or

The Simons Observatory: Production-Level Fabrication of the Mid- and Ultra-High-Frequency Wafers

May 4, 2024
Author(s)
Shannon Duff, Jason Austermann, James Beall, David Daniel, Johannes Hubmayr, Gregory Jaehnig, Bradley Johnson, Dante Jones, Michael J. Link, Tammy Lucas, Rita Sonka, Suzanne Staggs, Joel Ullom, Yuhan Wang
The Simons Observatory (SO) is a cosmic microwave background instrumentation suite in the Atacama Desert of Chile. More than 65,000 polarization-sensitive transition-edge sensor (TES) bolometers will be fielded in the frequency range spanning 27 to 280 GHz

An Interlaboratory Study for Assessing Repeatability and Reproducibility of the Data Generated by Rotating Drum Powder Rheometers Part 1: Granudrum

May 3, 2024
Author(s)
Vipin Tondare, Justin Whiting, Adam L. Pintar, Shawn P. Moylan, Aurelien Neveu, Filip Francqui
The National Institute of Standards and Technology (NIST) organized an interlaboratory study to assess the repeatability and reproducibility of the data generated by two commercially available rotating drum powder rheometers namely, Granudrum and

Collection Methods for High-SNR I/Q Recordings of FDD LTE User Equipment Emissions

May 3, 2024
Author(s)
Keith Forsyth, Aric Sanders, Dan Kuester, Adam Wunderlich
This report documents collection methods for high signal-to-noise ratio (SNR) in-phase and quadrature (I/Q) radio frequency (RF) recordings of long-term evolution (LTE) uplink emissions from a commercial-off-the-shelf (COTS) handset in a fully conducted

Assured Autonomy through Combinatorial Methods

May 2, 2024
Author(s)
David Kuhn, M S Raunak, Raghu Kacker, Jaganmohan Chandrasekaran, Erin Lanus, Tyler Cody, Laura Freeman
Autonomous systems are proliferating rapidly, with strong interest in everything from vacuum cleaners and lawnmowers, to self-driving cars and autonomous farm equipment. Can these systems be trusted to function safely? Many conventional software

Decarbonizing the Economy: Circularizing Solar Photovoltaics

May 2, 2024
Author(s)
Nehika Mathur
Solar photovoltaics (PVs) are the fastest growing clean energy technology. As the first generation of solar PVs reach the end of their functional lives, it is becoming clear that unless strategies to manage discarded panels are implemented, we could be

Dissemination of UTC(NIST) over 20 km of commercial optical fiber with active phase stabilization

May 2, 2024
Author(s)
Jacob VanArsdale, Matthew J. Deutch, Michael A. Lombardi, Glenn Nelson, Jeffrey Sherman, James Spicer, William Yates, Dylan Yost, Samuel Brewer
We demonstrate the transfer of a cesium frequency standard steered to UTC(NIST) over 20 km of dark telecom optical fiber. Our dissemination scheme uses an active stabilization technique with a phase-locked voltage-controlled oscillator. Out-of-loop

Independent Rydberg atom sensing using a dual-ladder scheme

May 2, 2024
Author(s)
Samuel Berweger, Alexandra Artusio-Glimpse, Nikunjkumar Prajapati, Andrew Rotunno, Noah Schlossberger, Dangka Shylla, kaitlin moore, Matthew Simons, Christopher Holloway
Rydberg atom-based electric field sensing can provide all-optical readout of radio frequency fields in a dielectric environment. However, because a single set of optical fields is typically used to prepare the Rydberg state and read out its response to RF
Displaying 1101 - 1125 of 143604