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We discuss the development of a new format for beacons-- servers which provide a sequence of digitally signed and hash-chained public random numbers on a fixed...
In the 3.5 GHz Citizens Broadband Radio Service, 100 MHz of spectrum will be shared between commercial users and federal incumbents. Dynamic use of the band...
Aruna N. Ramanayaka, Ke Tang, Joseph Hagmann, Hyun S. Kim, Curt A. Richter, Joshua M. Pomeroy
Elimination of unpaired nuclear spins can result in low error rates for quantum computation; therefore, isotopically enriched 28Si is regarded as an ideal...
Nina P. Basta, Jasper A. Drisko, Aaron M. Hagerstrom, Joshua A. Orlicki, Jennifer M. Sietins, Daniel B. Knorr, Jr., Edward J. Garboczi, Christian J. Long, Nathan D. Orloff
The electrical properties of materials are a necessary part of any circuit design. As applications at millimeter-wave frequen-cies increase, there is a growing...
John W. van de Lindt, Bruce Ellingwood, Therese P. McAllister, Paolo Gardoni, Daniel Cox, Walter G. Peacock, Harvey Cutler, Maria Dillard, Jong Lee, Lori Peek, Judith Mitrani-Reiser
Community resilience is often defined as the ability of a community to prepare for, absorb, and recover rapidly from a hazard event. In 2015, the U.S. National...
Murat Aksu, John L. Michaloski, Frederick M. Proctor
Measuring the agility performance of the industrial robots as they are performing in unstructured and dynamic environments is a thought-provoking research topic...
In a recent urban fire in Itoigawa-city, Niigata, Japan, structures were exposed to firebrands and it was reported roofing assemblies were ignited, which led to...
Firebrands generated from structures are a source of rapid fire spread within communities during large outdoor fires, such as wildland-urban (WUI) fires and...
Raied Caromi, John Mink, Cosburn H. Wedderburn, Michael R. Souryal, Naceur El Ouni
This paper presents a framework and apparatus for laboratory testing of environmental sensing capability (ESC) sensors for the 3.5 GHz band. These sensors are...
Corey A. Stambaugh, Joshua M. Pomeroy, Hamza Shakeel
The Quartz Crystal Microbalance provides critical measurement capability for a wide variety of \textit{in situ} and \textit{in vivo} applications. However, it...
Siamak Sattar, Christopher Segura, Katherine Johnson, Therese P. McAllister, Steven McCabe
For typical residential and commercial buildings, the intent of buildings codes is to protect building occupants against life-threatening actions while...
Successful spectrum management requires reliable methods for determining whether communication signals are present in a spectrum portion of interest. The widely...
Yangyang Zhao, Mona E. Zaghloul, Yigal Lilach, Kurt Benkstein, Stephen Semancik
We report a metal organic framework (MOF)-coated nanohole array based plasmonic gas sensor. Arrays of 200 nm circular holes are fabricated with a period of 400...
Michael Schneider, Christine A. Donnelly, Stephen E. Russek, Burm Baek, Matthew Pufall, Pete Hopkins, William Rippard
Many neuromorphic hardware technologies are being explored for their potential to increase the efficiency of computing certain problems, and thus facilitate...
This paper presents experimental investigations of the performance of common lateral force- resisting systems used in cold-formed steel construction under...
Tesfaye M. Moges, Wentao Yan, Stephen Lin, Gaurav Ameta, Jason C. Fox, Paul W. Witherell
Various sources of uncertainty that can potentially cause variability in the product quality exist at different stages of the laser powder bed fusion (L-PBF)...
Sonia Buckley, Adam McCaughan, Jeff Chiles, Richard Mirin, Sae Woo Nam, Jeff Shainline
We have previously proposed a novel hardware platform for neuromorphic computing based on superconducting optoelectronics that presents many of the features...
Shanshan Zhang, Brandon Lane, Justin G. Whiting, Kevin Chou
This study investigates the thermal conductivity of metallic powder in laser powder-bed fusion(LPBF) additive manufacturing. The intent is to utilize a...
Jerome Cheron, Dylan Williams, Konstanty Lukasik, Richard Chamberlin, Benjamin Jamroz, Erich N. Grossman, Wojciech Wiatr, Dominique Schreurs
We studied the impact of measurement uncertainties in a HBT model and their consequences on the electrical performance under large signal conditions at 9 GHz...
Matthew T. Simons, Marcus D. Kautz, Abdulaziz H. Haddab, Joshua A. Gordon, Christopher L. Holloway, Thomas P. Crowley
The power transmitted through a waveguide was determined using in-situ atom-based electric field measurements. The field distribution in the waveguide was...
Frequency dependent external quantum efficiency (EQE) measurements were performed on double junction solar cells by a custom-designed system consisting of an...
Joshua A. Gordon, David R. Novotny, Michael S. Allman
We present on an all-optical spatial metrology system, the PiCMM, that aids in the alignment and tracking of antennas with accuracies on the order of 25 microns...
Alex Yuffa, Ben Jamroz, Jake Rezac, Dylan Williams
We present preliminary results of using a modal (partial wave) expansion of the field to characterize a propagation channel. We assume that the measurements of...
Antenna radiation pattern measurements are typically performed in anechoic chambers which are expensive to buy and inconvenient to rent from external facilities...
The centimeter-gram-second system of electromagnetic units (EMU) has been used in magnetism since the late 19th century. The International System of Units (SI)...
Jamie Weaver, Scott A. Wight, Carolyn Pearce, John McCloy, Thomas Lam, Rolf Sjoblom, David Peeler, Michael Schweiger, Albert Kruger, Scott Whittaker, Edward Vicenzi
Numerous Iron Age hillforts were constructed throughout Europe on high ground to serve ancient settlements. The edifice walls of a small fraction of hillforts...
Mixing rules are proposed and used to correlate mixed forest fuel bed fire spread data from the literature using the dimensionless correlations previously...
Ran Tao, Aaron M. Forster, Kirk D. Rice, Randy A. Mrozek, Shawn T. Cole, Reygan M. Freeney
The current standard backing material used for ballistic resistance testing of body armour, Roma Plastilina No. 1 (RP1), is known to exhibit complex...
A recent study performed by the authors in [1] has shown that some electronic energy meters are susceptible to electromagnetic interference resulting in...
The National Institute of Standards and Technology has been using commercial robotic arms to characterize antenna gain and radiation patterns. The transition...