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Conferences

Modeling and Simulation Analysis of the Physical Sidelink Shared Channel (PSSCH)

May 24, 2018

Author(s)

David W. Griffith, Fernando J. Cintron, Timothy Hall, Richard A. Rouil

This paper examines the performance of the Long Term Evolution (LTE) Physical Sidelink Shared Channel (PSSCH) in out-of-coverage (OOC) device-to-device (D2D)...

An improved method for calibrating solid-phase microextraction by direct loading

May 23, 2018

Author(s)

Mengyan Gong, Dustin Poppendieck

Solid-phase microextraction (SPME) has been widely used as a sampling technique for a variety of organic compounds due to its advantage of small sampling volume...

Calibration of Solid- phase Microextension for Measuring Indoor Gas Phase SVOC Concentration

May 23, 2018

Author(s)

Mengyan Gong, Dustin Poppendieck

The most often used method to calibrate solid-phase microextraction (SPME) for measuring gas phase semi-volatile organic compound (SVOC) concentrations, i.e...

A portable cold 87Rb atomic clock with frequency instability at one day in the 10^-15 range

May 21, 2018

Author(s)

Joshua J. Savory, F G. Ascarrunz, L I. Ascarrunz, Alessandro L. Banducci, M C. Delgado Aramburo, Y Dudin, Steven R. Jefferts

We present a small portable cold 87Rubidium atomic clock with frequency uncertainty of less than 𝟑 × 𝟏𝟎 −𝟏𝟓 in one day of averaging time. The clock is under...

High-resolution antenna near-field imaging andsub-THz measurements with a small atomicvapor-cell sensing element

May 21, 2018

Author(s)

Christopher L. Holloway, Dave Anderson, Georg Raithel

Atomic sensing and measurement of millimeterwave (mmW) and THz electric fields using quantum-optical EIT spectroscopy of Rydberg states in atomic vapors has...

Accurate and Precise Laser Spectroscopy: Emerging Technology for the Study of Atmospheric Constituents, Radiative Transfer, and Planetary Dynamics

May 21, 2018

Author(s)

Adam J. Fleisher, David A. Long, Joseph T. Hodges, Gerd A. Wagner, David F. Plusquellic

Effect of Local Oscillator Performance on UWB Based Indoor Localization System

May 21, 2018

Author(s)

Archita Hati, Fabio C. Da Silva, Vladislav P. Gerginov, Craig W. Nelson

We discuss the performance of a commercial Ultra-wideband (UWB) ranging technique for indoor localization. We study the influence of local oscillator's phase...

Comparative Analysis of Bearing Health Monitoring Methods for Machine Tool Linear Axes

May 16, 2018

Author(s)

Jordan Jameson, Gregory W. Vogl

The study of rotating machinery ball bearing diagnostics and prognostics is quite mature and an abundance of methods/algorithms are available to perform these...

Progress Towards Accurate Monitoring of Flue Gas Emissions

May 16, 2018

Author(s)

Aaron Johnson, Iosif Isaakovich Shinder, Michael R. Moldover, Joey Boyd, James Filla

The amounts of CO2 and other pollutants emitted by a coal-fired power plant are measured using a continuous emissions monitoring system (CEMS) permanently...

Characterization of Five-Hole Probes used for Flow Measurement in Stack Emission Testing

May 16, 2018

Author(s)

Iosif Isaakovich Shinder, Aaron Johnson, Michael R. Moldover, James Filla, Vladimir Khromchenko

We report progress towards the goal of reducing the errors in industrial smokestack flow measurements to 1 % by replacing S-probes with calibrated 3-D probes (i...

Finite Element Method Solution Uncertainty, Asymptotic Solution, and a New Approach to Accuracy Assessment

May 16, 2018

Author(s)

Jeffrey T. Fong, Pedro V. Marcal, Robert B. Rainsberger, Li Ma, Nathanael A. Heckert, James J. Filliben

Errors and uncertainties in finite element method (FEM) computing can come from the following eight sources: (1) Computing platform; (2) choice of element types...

Polarized single-scattering phase function determined for a common reflectance standard from bidirectional reflectance measurements

May 14, 2018

Author(s)

Thomas A. Germer

We report on Mueller matrix bidirectional reflectance distribution function (BRDF) measurements of a sintered polytetrafluoroethylene (PTFE) sample over the...

Physical and Chemical Transformations of Silver Nanomaterials in Textiles After Use and Disposal

May 14, 2018

Author(s)

Danielle E. Gorka, Justin Gorham

Silver nanomaterials (AgNMs) have been increasingly used in consumer products for their antibacterial properties. Textiles, including wound dressings, are just...

Ultra-high spectral resolution spectrometer for single photon source characterization

May 14, 2018

Author(s)

Lijun Ma, Oliver T. Slattery, Xiao Tang

In future quantum communication systems, single photons will be required to possess very narrow linewidths and accurate wavelengths for efficient interaction...

Problems with Stirred Immunity Measurements in a Reverberation Chamber -- Corrections to DO-160G Section 20.6

May 13, 2018

Author(s)

John M. Ladbury

Abstract—When DO-160G, Environmental Conditions and Test Procedures for Airborne Equipment [1], Section 20.6, was modified in 2010 to simplify electromagnetic...

Physical and Chemical Transformations of Silver Nanomaterial-containing Textiles After Use

May 13, 2018

Author(s)

Danielle E. Gorka, Justin Gorham

Nanomaterials have been increasingly used in consumer products and silver nanomaterials (AgNMs) especially have been used for their antimicrobial properties. As...

Towards Light Storage and Retrieval from a Solid-State Atomic Ensemble at the Single-Photon Level

May 13, 2018

Author(s)

Kumel H. Kagalwala, Elizabeth A. Goldschmidt, Sergey V. Polyakov, Alan L. Migdall

We report progress towards the implementation of a quantum memory in a rare-earth ion-doped crystal. Toward that goal, we demonstrate a narrowband spectral...

Using Temperature to Reduce Noise in Quantum Frequency Conversion

May 12, 2018

Author(s)

Paulina Kuo, Jason S. Pelc, Carsten Langrock, M. M. Fejer

A main source of noise in quantum frequency conversion is spontaneous Raman scattering, which can be reduced by lowering the operating temperature. We show...

Vibrational Interferometry Enables Single-Scan Acquisition of all χ⁽³⁾ Multi-Dimensional Coherent Spectral Maps

May 12, 2018

Author(s)

Travis M. Autry, Galan Moody, James M. Fraser, Corey A. McDonald, Richard Mirin, Kevin L. Silverman

We demonstrate a new method for multidimensional coherent spectroscopy of nanostructures. We use a heterodyne technique implemented with a confocal microscope...

Assessment of Carrier Lifetimes and Surface Recombination Velocity through Spectral Measurements

May 11, 2018

Author(s)

John F. Roller, Behrang H. Hamadani

Charge carrier lifetimes and surface recombination velocities were measured on photovoltaic- grade silicon wafers using a spectral-dependent method. Narrow...

Design and Construction of Long-Span Composite Beam Specimens for Large Structural-Fire Tests

May 10, 2018

Author(s)

Selvarajah Ramesh, Lisa Choe, Matthew Hoehler, William L. Grosshandler, John L. Gross

A series of experiments is being conducted on five 12.8 m long composite floor beams at the newly-commissioned National Fire Research Laboratory at the National...

Optical Measurements of Dynamic Absorptance during High-power Laser Spot Welding

May 7, 2018

Author(s)

Brian Simonds, Jeffrey W. Sowards, Joshua A. Hadler, Boris Wilthan, Erik A. Pfeif, Jack Tanner, Chandler Harris, Paul A. Williams, John Lehman

We present precision measurements of the time-dependent absorptance during a 10 ms fiber-laser spot weld on 316L stainless steel. From these, the precise time...

Towards Evaluating Named Data Networking for the IoT: A Framework for OMNeT

May 4, 2018

Author(s)

Abdella Battou

Named Data Networking is a promising architecture for emerging Internet applications such as the Internet of Things (IoT). Many studies have already...

SiC power MOSFET gate oxide breakdown reliability Current status

May 3, 2018

Author(s)

Kin P. Cheung

SiC power MOSFET is poised to take off commercially. Gate oxide breakdown reliability is an important obstacle standing is the way. Early prediction of poor...

Spectral tuning of localized surface phonon-polariton modes in selective area epitaxy GaN nanowire arrays

May 1, 2018

Author(s)

Bryan T. Spann, J. Ryan Nolen, Matthew D. Brubaker, Thomas G. Folland, Chase T. Ellis, Joseph G. Tischler, Todd E. Harvey, Joshua D. Caldwell, Kristine A. Bertness

Polar semiconductor materials, such as GaN, InP, SiC et al., offer a basis to manufacture innovative long-wavelength photonic devices.1 Such semiconductors can...

Improving the Representation and Conversion of Mathematical Formulae by Considering their Textual Context

May 1, 2018

Author(s)

Howard S. Cohl, Moritz Schubotz, Andre Greiner Petter, Norman Meuschke, Bela Gipp, Philipp Scharpf

Mathematical formulae represent complex semantic information in a concise form. Especially in Science, Technology, Engineering, and Mathematics, mathematical...

Raman spectroscopy for dopant optimization in GaN nanowire light-emitting diodes

May 1, 2018

Author(s)

Kristine A. Bertness, Bryan T. Spann, Matthew D. Brubaker, Todd E. Harvey, Paul T. Blanchard

We apply Raman spectroscopy to optimize both n-type and p-type doping in GaN nanowire light- emitting diodes (LEDs) grown with selective epitaxy on Si(111) with...

SRM 2687a Portland Cement Clinker Development Data Analyses, and Certification

May 1, 2018

Author(s)

Paul E. Stutzman

The Standard Reference Material (SRM) clinkers are intended for use in developing and testing quantitative methods of phase analysis for portland cement and...

Resonant Pressure Sensing Using a Micromechanical Cantilever Actuated by Fringing Electrostatic Fields

April 26, 2018

Author(s)

Naftaly Krakover, Robert Ilic, Slava Krylov

We demonstrate a pressure sensing approach based on the resonant operation of a single crystal Si cantilever positioned near a flexible, pressurized membrane...

Evaluating Predictors of Congestion Collapse in Communication Networks

April 23, 2018

Author(s)

Christopher E. Dabrowski, Kevin L. Mills

Researchers model congestion in communication networks using a percolation process, where congestion spreads minimally before a critical load and expands...

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