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NIST Authors in Bold

Displaying 1401 - 1425 of 74035

Voltage Modulated Magnetic Anisotropy of Rare Earth Iron Garnet Thin Films on a Piezoelectric Substrate

December 19, 2022
Author(s)
Miela Gross, Walid Al Misba, Kensuke Hayashi, Dhritiman Bhattacharya, Daniel Gopman, Jayasimha Atulasimha, Caroline Ross
Voltage-tuning of the magnetic anisotropy is dempnstrated in ferrimagnetic insulating rare earth iron garnets on a piezoelectric substrate, (011)-oriented PMN-PT. A yttrium-substituted dysprosium iron garnet (YDyIG) film 42 nm thick is grown via pulsed

Attacks on ML Systems: From Security Risk Analysis to Attack Mitigation

December 16, 2022
Author(s)
Qingtian Zou, Lan Zhang, Anoop Singhal, Xiaoyan Sun, Peng Liu
The past several years have witnessed rapidly increasing use of machine learning (ML) systems in multiple industry sectors. Since risk analysis is one of the most essential parts of the real-world ML system protection practice, there is an urgent need to

CREDIBILITY CONSIDERATION FOR DIGITAL TWINS IN MANUFACTURING

December 16, 2022
Author(s)
Guodong Shao, Joe Hightower, William Schindel
Digital Twin has become an important technology for advanced manufacturing. However, to ensure that digital twins provide valuable decision support, the results generated by the digital twins must be trustworthy for real manufacturing systems. Model

MAKE IT "SNPPY" - UPDATES TO SRM 2391D: PCR-BASED DNA PROFILING STANDARD

December 16, 2022
Author(s)
Becky Steffen, Erica Romsos, Kevin Kiesler, Lisa Borsuk, Katherine Gettings, Peter Vallone
Standard Reference Material (SRM) 2391d: PCR-Based DNA Profiling Standard was released to the forensic community in 2019. Next Generation Sequencing (NGS) was used as the primary method of certification, where certified values were assigned when a high

Self-Assembled Asperities for Pressure Tunable Adhesion

December 16, 2022
Author(s)
Naomi Deneke, Jamie Booth, Edwin P. Chan, Chelsea S. Davis
Control of adhesive strength is important in applications such as soft robotics, pick-and-place manufacturing, flexible and wearable devices, and transfer printing. Due to the diversity of material types, these systems can potentially benefit from adhesive

Tight Bounds on the Convergence of Noisy Random Circuits to the Uniform Distribution

December 16, 2022
Author(s)
Michael Gullans, Abhinav Deshpande, Bill Fefferman, Alexey Gorshkov, Pradeep Niroula, Oles Shtanko
We study the properties of output distributions of noisy, random circuits. We obtain upper and lower bounds on the expected distance of the output distribution from the uniform distribution. These bounds are tight with respect to the dependence on circuit

Cannabis Quality Assurance Program: Exercise 2 Toxic Elements Final Report

December 15, 2022
Author(s)
Chuck Barber, Colleen E. Bryan Sallee, Carolyn Burdette, Shaun Kotoski, Melissa M. Phillips, Walter Brent Wilson, Laura Wood
In 2020, NIST launched CannaQAP to improve the comparability of the analytical measurements of cannabis and cannabis-derived products in forensic and cannabis (hemp and marijuana) testing laboratories. CannaQAP is an interlaboratory study mechanism that is

Report of the Digital Evidence Task Group Quality Study

December 15, 2022
Author(s)
Barbara Guttman, Kelly Sauerwein, James R. Lyle
The report describes the results of a project performed by a study group from the Organization of Scientific Area Committees (OSAC) for Forensic Science Digital Evidence Subcommittee to identify the quality practices and management systems that are most

Room-temperature valence transition in a strain-tuned perovskite oxide

December 15, 2022
Author(s)
Vipul Chaturvedi, Supriya Ghosh, Dominique Gautreau, William M. Postiglione, John E. Dewey, Patrick Quarterman, Purnima P. Balakrishnan, Brian Kirby, Hua Zhou, Huikui Cheng, Amanda Huon, Timothy Charlton, Michael R. Fitzsimmons, Caroline Korostynski, Andrew Jacobson, Lucca Figari, Javier Garcia Barriocanal, T. Birol, K. A. Mkhoyan, Chris Leighton
Cobalt oxides have long been understood to display intriguing phenomena known as spin-state crossovers, where the cobalt ion spin changes vs. temperature, pressure, etc. A very different situation was recently uncovered in praseodymium-containing cobalt

Spatial frequency domain Mueller matrix imaging

December 14, 2022
Author(s)
Joseph Chue-Sang, Maritoni Litorja, Aaron Goldfain, Thomas A. Germer
Significance: Mueller matrix polarimetry (MMP) and spatial frequency domain imaging (SFDI) are wide-field optical imaging modalities that differentiate tissue primarily by structure alignment and photon transport coefficient, respectively. Because these

Crystallization Kinetics in an Immiscible Polyolefin Blend

December 12, 2022
Author(s)
Derek Huang, Anthony Kotula, Chad R. Snyder, Kalman Migler
Motivated by the problem of brittle mechanical behavior in recycled blends of high density polyethylene (HDPE) and isotactic polypropylene (iPP), we employ optical microscopy, rheo-Raman, and differential scanning calorimetry (DSC) to measure the

Development of an Improved Standard Reference Material for Folate Vitamers in Human Serum

December 12, 2022
Author(s)
Johanna Camara, Jeanita Pritchett, Yasmine Daniels, Mary Bedner, Michael Nelson, Mark Lowenthal, Zia Fazili, Christine Pfeiffer, Karen W. Phinney, Katherine E. Sharpless, Lane C. Sander, Katrice Lippa, James H. Yen, Adam Kuszak, Stephen Wise
The US National Institute of Standards and Technology (NIST) developed a Standard Reference Material® (SRM®) 3949 Folate Vitamers in Frozen Human Serum to replace SRM 1955 Homocysteine and Folate in Human Serum. The presence of increased endogenous levels

Gas Flow Standards and Their Uncertainty

December 12, 2022
Author(s)
John D. Wright, Aaron Johnson, Michael R. Moldover, Shin-ichi Nakao
We review diverse types of gas flow standards that are used to calibrate other gas flow meters. For each type of standard, we describe the principles of its operation and at least one hardware example. We identify the practical limits of the example's

High-Fidelity State Preparation, Quantum Control, and Readout of an Isotopically Enriched Silicon Spin Qubit

December 12, 2022
Author(s)
Adam Mills, Charlie Guinn, Michael Gullans, Mayer Feldman, Anthony Sigillito, M. Rakher, J. Kerckhoff, A. C. Jackson, Jason Petta
Quantum systems must be prepared, controlled, and measured with high fidelity in order to per- form complex quantum algorithms. Control fidelities have greatly improved in silicon spin qubits, but state preparation and readout fidelities have generally

New Ritz Wavelengths and Transition Probabilities for Parity-Forbidden, Singly Ionised Nickel [Ni ii] Lines of Astrophysical Interest Christian P.

December 12, 2022
Author(s)
Christian P. Clear, Peter Uylings, Ton Raassen, Gillian Nave, Juliet C. Pickering
We report accurate Ritz wavelengths for parity-forbidden [Ni ii] transitions, derived from energy levels determined using high-resolution Fourier transform spectroscopy. Transitions between the 17 lowest Ni ii energy levels of even parity produced Ritz

Ultra-low loss quantum photonic circuits integrated with single quantum emitters

December 12, 2022
Author(s)
Ashish Chanana, Hugo Larocque, Renan Moreira, Jacques Carolan, Biswarup Guha, Emerson Goncalves De Melo, Vikas Anant, Jin Dong Song, Dirk Englund, Daniel Blumenthal, Marcelo Davanco, Kartik Srinivasan
Photon-based photonic quantum information systems require both scalable ultra-low loss photonic circuits and high-flux sources of single-photons. Direct integration of these sources and circuits is critical to realizing quantum systems that are scalable
Displaying 1401 - 1425 of 74035