Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Conferences

Sensitive broadband binary photoresponsivity in 4H-SiC epitaxial graphene

June 13, 2022

Author(s)

Albert Rigosi

Progress on a portable polarization-entangled photon source & receiver for quantum network metrology

June 13, 2022

Author(s)

Anouar Rahmouni, Thomas Gerrits, Oliver T. Slattery

The aim of this work is to develop low-cost, portable/rack-mounted, robust, and reliable tools for a quantum network testbed. We report our progress on the...

Visualization Ecology Applications for Measurement Science: A Visualization Gap Approach

June 13, 2022

Author(s)

Simon Su, William Sherman, Steven G. Satterfield, Terence J. Griffin, William L. George, Sandy Ressler, Shaw C. Feng, Judith E. Terrill

Advanced visualization research have remained insufficiently included in science and engineering workflows due to the highly specialized task-specific...

Mode localization and tunable overlap in a closed-chain micromechanical resonator array

June 9, 2022

Author(s)

Joon Hyong Cho, Michael Cullinan, Jason J. Gorman

In this paper, we explore the dynamics of a closed chain of coupled micromechanical resonators, where each resonator is coupled to its two nearest neighbors...

Developing multithreaded techniques and improved constraint handling for the tool CAgen

June 8, 2022

Author(s)

Michael Wagner, Manuel Leithner, Dimitris Simos, D. Richard Kuhn, Raghu N. Kacker

CAgen is a state-of-the-art combinatorial test generation tool that is known for its execution speed. In addition, it supports an extensive list of features...

ARL Battlespace: A Platform for Developing Novel AI for Complex Adversarial Reasoning in MDO

June 6, 2022

Author(s)

Simon Su

A barrier to developing novel AI for complex reasoning is the lack of appropriate wargaming platforms for training and evaluating AIs in a multiplayer setting...

PERIOD TRIPLING STATES AND NON-MONOTONIC ENERGY DISSIPATION IN COUPLED MEMS RESONATORS

June 5, 2022

Author(s)

Vladimir Aksyuk, Omar Lopez, Mingkang Wang, Diego Perez-Morelo

When two eigenmodes are at internal resonance (IR), i.e. they have commensurate eigenfrequencies, their coupling strength can be significantly enhanced. Rich...

An Investigation of Roles, Backgrounds, Knowledge, and Skills of U.S. Government Security Awareness Professionals

June 4, 2022

Author(s)

Julie Haney, Jody Jacobs, Susanne M. Furman

Security awareness professionals are tasked with implementing security awareness programs within their organizations to assist employees in recognizing and...

A New Spin on Kibble: A Self Calibrating Torque Realization Device at NIST

June 3, 2022

Author(s)

Zane Comden, Stephan Schlamminger, Charles Waduwarage Perera, Frank Seifert, David B. Newell, Jay H. Hendricks, Barbara L. Goldstein, Leon Chao

After the 2019 redefinition of the International System of Units (SI), torque no longer needs to be traceable to a calibrated weight suspended from a known...

A Comprehensive Analysis and Performance Enhancements for the IEEE 802.11ay Group Beamforming Protocol

June 1, 2022

Author(s)

Nina Grosheva, Hany Assasa, Tanguy Ropitault, Pablo Jimenez Mateo, Joerg Widmer, Nada T. Golmie

Millimeter-wave technology provides the necessary improvements in capacity and performance for the next generation of wireless networks. The new IEEE 802.11ay...

Surface Feature Characteristics of Laser Powder Bed Fusion of Nickel Super Alloy 625 Bulk Regions

June 1, 2022

Author(s)

Jason Fox, Romaine Isaacs, Aarush Sood, Paul Brackman, Brigid Mullany, Edward Morse, Angela Allen, Edson Santos, Christopher Evans

Coherence scanning interferometry (CSI) and scanning electron microscopy (SEM) surface inspection of additively manufactured nickel super alloy 625 reveal...

Evaluation of hole expansion formability of high strength AA7075 alloy under varying temper conditions

May 31, 2022

Author(s)

Dilip K. Banerjee, Kali Prasad, Abrar Salam Ebrahim, Krishnaswamy Hariharan, Uday Chakkingal

There has been a widespread increase in the use of aluminum alloys in automotive industries for meeting ever-growing light-weighting requirements. However, edge...

5G NR and LTE Coexistence in Public Safety Communications

May 27, 2022

Author(s)

Sneihil Gopal, David W. Griffith

5G New Radio (NR) offers the promise of supporting new Public Safety Communications (PSC) services. Since the majority of the frequency bands worldwide are used...

A Comprehensive Evaluation on Multicast and Unicast in Public Safety Communications

May 27, 2022

Author(s)

Chunmei Liu

N/A

Consumer Perspectives on Loss of Support for Smart Home Devices

May 26, 2022

Author(s)

Julie Haney, Susanne M. Furman

Unsupported smart home devices can pose serious safety and security issues for consumers. However, unpatched and vulnerable devices may remain connected because...

A Case for Rethinking ASCE 41 Performance-Based Assessment Criteria for Cold-Formed Steel

May 25, 2022

Author(s)

Matthew Speicher, Zhidong Zhang, Benjamin W. Schafer

The objective of this paper is to evaluate the impact of applying the ASCE 41-17 performance-based design provisions on a 2-story case study building previously...

A Simple Two-Step Reaction Scheme for Soot and CO

May 23, 2022

Author(s)

Kevin McGrattan, Randall McDermott, Jason E. Floyd

A relatively simple two-step combustion model is proposed for predicting soot and CO generation in under-ventilated fire simulations. The scheme consists of two...

Statistical and Spatio-temporal Data Features in Melt Pool Monitoring of Additive Manufacturing

May 23, 2022

Author(s)

Brandon Lane, Ho Yeung, Zhuo Yang

Co-axial melt pool monitoring is an in-situ method applied in laser-powder bed fusion (LPBF) processes which uses a high-speed camera optically aligned with the...

Range resolved CO2 measurements over 3 km using a 10-point fiber-based differential-absorption LIDAR (DIAL) system

May 20, 2022

Author(s)

Jasper Stroud, David Plusquellic

We present a multi-frequency DIAL system based on a fast-switching wavelength source and fiber optic amplification to acquire range-resolved dry-air CO2...

Online Service Caching and Routing at the Edge with Unknown Arrivals

May 20, 2022

Author(s)

Siqi Fan, I-Hong Hou, Van Sy Mai, Lotfi Benmohamed

Dual Chirped-Pulse Electro-Optic Comb Generation in the THz Region: Spanning the Spectroscopic and Quantum Dynamics Domains

May 20, 2022

Author(s)

Jasper Stroud, David Plusquellic

A new THz difference-frequency chirped-pulse dual-comb method based on electro-optic phase modulators (EOMs) and two near-visible continuous wave lasers is used...

Validation of a multi-frequency differential absorption LIDAR (DIAL) system from aerosol and cloud retrievals

May 20, 2022

Author(s)

Jasper Stroud, David Plusquellic

A ten wavelength DIAL system based on a 100 Hz optical parametric oscillator (OPO) is used to simultaneously acquire range-resolved and integrated path dry-air...

Electro-Optically Derived Arbitrary Millimeter-Wave Sources with 100 GHz of Bandwidth

May 20, 2022

Author(s)

Bryan Bosworth, Nick Jungwirth, Kassiopeia Smith, Jerome Cheron, Franklyn Quinlan, Madison Woodson, Jesse Morgan, Andreas Beling, Ari Feldman, Dylan Williams, Nate Orloff, Chris Long

We demonstrate fine phase and amplitude control of millimeter waves, measured on-wafer using an electro-optic frequency comb, programmable spectral filter, and...

Deep Learning for Path Loss Prediction in the 3.5 GHz CBRS Spectrum Band

May 19, 2022

Author(s)

Thao T. Nguyen, Raied Caromi, Kassem Kallas

In the 3.5 GHz citizen broadband radio service (CBRS) band, accurate path loss prediction is very important to protect the incumbent from harmful interference...

Development and Analysis of a Database of Tornado Impacts on U.S. Critical Facilities

May 17, 2022

Author(s)

Nicholas de Toledo, Marc Levitan, Jamil Malik, Warren Stewart, Katherine Johnson, Patrick Crawford

Despite the significant hazard that tornadoes pose, much remains to be learned about the impacts of tornadoes on critical facilities in the United States. While...

Simultaneous measurement of outdoor O2, CO2, and CH4 with a dual-comb spectrometer.

May 16, 2022

Author(s)

Nathan Malarich, Brian Washburn, Kevin Cossel, Fabrizio Giorgetta, Brett DePaola, Steven Welch, Eduardo Santos, Nathan R. Newbury, Ian Coddington

We configure a fiber dual-comb spectrometer to measure the O2 delta band (1260 nm) in addition to CO2 and CH4 absorption features (1600 nm).

Multi-User MIMO Enabled Virtual Reality in IEEE 802.11ay WLAN

May 16, 2022

Author(s)

Jiayi Zhang, Steve Blandino, Neeraj Varshney, Jian Wang, Camillo Gentile, Nada T. Golmie

Virtual reality (VR) coupled with 360° video has been used in a variety of areas, including gaming, remote learning, and healthcare, among others. The 360°...

Absorption-Based Ranging from Ambient Thermal Radiation without Known Emissivities

May 15, 2022

Author(s)

Unay Dorken Gallastegi, Hoover Rueda-Chacon, Marty Stevens, Vivek Goyal

We present passive absorption-based ranging using long-wave infrared hyperspectral measurements of an outdoor scene. Regularization and parametric modeling of...

Time Programmable Frequency Comb

May 15, 2022

Author(s)

Emily Caldwell, Laura Sinclair, Nathan R. Newbury, Jean-Daniel Deschenes

We demonstrate a programmable optical frequency comb that emits coherent pulses with user-specified time and phase at sub-10 attosecond accuracy while...

Graphene Quantum Electrical Metrology for National Measurement Standards

May 13, 2022

Author(s)

Randolph Elmquist, Swapnil Mhatre, Alireza Panna, Albert Rigosi, Dinesh Patel, Mattias Kruskopf

Was this page helpful?