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We consider a variant of the phase retrieval problem, where vectors are replaced by unitary matrices, i.e., the unknown signal is a unitary matrix U, and the
Didier Snoeck, Jianyun Wang, Dale P. Bentz, Nele De Belie
The bond between repair mortars and existing concrete substrates is critical for the long-term performance and durability of the repaired structure. The
This electronic Acoustics and electromagnetics have a number of parallels based on similar equations describing propagation, reflection, and reverberation. This
Recently, the concept of smart manufacturing has emerged as a new paradigm, with which manufacturers can pursue their competitiveness in the market. Such a
Semi-volatile organic compounds (SVOC) are ubiquitous indoors, commonly used in consumer products as additives to enhance product performance, and may be up to
Elizabeth S. Drexler, Andrew J. Slifka, Robert L. Amaro, Damian S. Lauria, Jeffrey W. Sowards
At the present time, steel selection for hydrogen pipelines is limited to API X52 grade. However, the code is being modified to include higher strength steels
The Workshop on Analytical Transmission Scanning Electron Microscopy (t-SEM) was held at the NIST Boulder Laboratories of the U. S. Department of Commerce
M Miral Dizdar, Aaron C. Jacobs, Nathan Donley, Marcus J. Calkins, Ajit Jadhav, Dorjbal Dorjsuren, David Maloney, Anton Simeonov, Pawel Jaruga, Erdem Coskun, Amanda K. McCullough, R. S. Lloyd
Statement of the Problem: Most chemotherapeutic agents kill cancer cells by damaging DNA. Cancer cells overexpress DNA repair proteins and thus increase DNA
Georgia L. Harris, Flora Mercader, Adriana Veraza, Salvador Echeverria Villagomez
2016 was an exciting year for international collaboration on metrology education and training. This paper provides a 3-part look at how a Fulbright Specialist
IEEE802.15.6 is a radio interface standard for wireless connectivity of wearable and implantable sensors and actuators located inside or in close proximity to
Bengt Borgstrom, Elliot Singer, Douglas Reynolds, Omid Sadjadi, Gregory A. Sanders
This paper addresses speaker verification domain adaptation with inadequate in-domain data. Specifically, we explore he cases where in-domain data sets do not
In concert with the advances in information and communication technology and its applications to manufacturing environments, physical entities in factories are
Communities can be characterized as complex systems, with resilience as an emergent property. Complex systems are systems composed of interconnected parts that
Seyed Omid Sadjadi, Timothée N. Kheyrkhah, Audrey N. Tong, Craig S. Greenberg, Douglas A. Reynolds, Elliot Singer, Lisa Mason, Jaime Hernandez-Cordero
In 2016, NIST conducted the most recent in an ongoing series of speaker recognition evaluations (SRE) to foster research in robust text-independent speaker
Database driven web applications are some of most widely developed systems today. Testing these applications effectively and discovering difficult-to-find bugs
Should the repeatability of the instrument under test be included in test uncertainty? The answer which surprises manyis no, at least for the range of cases
Sergiy Vilkomir, Aparna Alluri, D. Richard Kuhn, Raghu N. Kacker
Software testing criteria differ in effectiveness, numbers of required test cases, and processes of test generation. Specific criteria are often compared with
Caglar Emiroglu, Bharath N. Natarajan, Jeffrey W. Gilman, James Alexander Liddle, Jan Obrzut
Cellulose nanocrystal films with different helical modulation lengths are characterized. Films are obtained by tuning the rate of evaporation and surface
Matthew Connolly, Peter Bradley, Andrew Slifka, Elizabeth S. Drexler
In situ transmission Bragg edge measurements of the strain field were performed near cracks grown in air and in hydrogen. Through the use of a novel test
Yiliang Bao, Feng Zhou, Thomas W. LeBrun, Jason J. Gorman
This paper describes the design, fabrication, and testing of a photonic MEMS accelerometer that uses a hemispherical microcavity to transduce the motion of the
Wei Ren, Theodore D. Doiron, John R. Stoup, Eric S. Stanfield
High-accuracy Coordinate Measuring Machine (CMM) is always a good option to measure the dimensions on a variety of artifacts. However, due to the large length
Zhelun Chen, Jin Wen, Anthony Kearsley, Amanda Pertzborn
A robust and efficient nonlinear algebraic and differential equations solver is increasingly essential as the scale of dynamic building system simulation grows
Parastoo Delgoshaei, Mark Austin, Amanda Pertzborn, Mohammad Heidarinejad, Vikas Chandan
State-of-the-art building simulation control methods incorporate physical constraints into their mathematical models, but omit implicit constraints associated
This paper addresses the combinatorial characterizations of the optimality conditions for constrained least-squares fitting of circles, cylinders, and spheres
Bruce Ellingwood, John W. van de Lindt, Therese P. McAllister
Community resilience depends on the performance of the built environment and on supporting social, economic and public institutions which are essential for re
As additive manufacturing (AM) continues to mature as a production technology, the limiting factors that have hindered its adoption in the past still exist, for