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Conferences

Hyperspectral Imaging of Localized, Optically-Active Defects in GaAs Solar Cells

November 14, 2022

Author(s)

Behrang Hamadani, Margaret Stevens, Brianna Conrad, Matthew Lumb, Eric Armour, Kenneth Schmieder

A novel hyperspectral imaging instrument with dual electroluminescence and photoluminescence capability was used to image and analyze localized radiative...

Flame spread and combustion dynamics in pine litter under unsteady wind conditions

November 11, 2022

Author(s)

Eric Mueller, Zakary Campbell-Lochrie, Carlos Walker-Ravena, Matt Patterson, Jason Cole, Michael Gallagher, Kenneth Clark, Nicholas Skowronski, Rory Hadden

Understanding flame spread and combustion dynamics in surface fuels is important for both planning and evaluating the impact of prescribed fires. However...

In-Process Data Integration for Laser Powder Bed Fusion Additive Manufacturing

November 11, 2022

Author(s)

Milica Perisic, Yan Lu, Albert T. Jones

Additive manufacturing (AM) is a powerful technology that can create complex metallic parts and has the potential to improve the economic bottom line for...

STEP-NC COMPLIANT DATA REPRESENTATIONS FOR POWDER BED FUSION IN ADDITIVE MANUFACTURING

November 11, 2022

Author(s)

Fahad Milaat, Paul Witherell, Martin Hardwick, Ho Yeung, Vincenzo Ferrero, Laetitia Monnier, Matthew Brown

Powder bed fusion (PBF) is an additive manufacturing (AM) technology that uses powerful beams to fuse powder material into layers of scanned patterns, thus...

Using Coaxial Melt Pool Monitoring Images to Estimate Cooling Rate for Powder Bed Fusion Additive Manufacturing

November 11, 2022

Author(s)

Zhuo Yang, Brandon Lane, Yan Lu, Ho Yeung, Jaehyuk Kim, Yande Ndiaye, Sundar Krishnamurty

Cooling rate is a decisive index to characterize melt pool solidification and determine local microstructure formation in metal powder bed fusion processes...

SPATIAL-TEMPORAL MODELING USING DEEP LEARNING FOR REAL-TIME MONITORING OF ADDITIVE MANUFACTURING

November 11, 2022

Author(s)

Jaehyuk Kim, Yan Lu, Zhuo Yang, Hyunwoong Ko, Dongmin Shin, Yosep Oh

Real-time monitoring for Additive Manufacturing (AM) processes can greatly benefit from spatial-temporal modeling using deep learning. However, existing, deep...

Introduction of nanoscale positive controls for nanotoxicology: A new aspect of utilization of stability-enhanced Gold-Polyethyleneimine conjugates (Au-PEIs)

November 8, 2022

Author(s)

Tae Joon Cho, Vincent A. Hackley, Vytas Reipa, Alessandro Tona, Christopher Sims, Natalia Farkas

Polyethyleneimine (PEI) conjugated gold nanoparticles (Au-PEIs) have potential use as positively charged gold nanoparticles (AuNPs) for nanomedical applications...

DIMENSIONAL METROLOGY IN DETERMINATION OF G WITH BIPM'S TORSION BALANCE

November 7, 2022

Author(s)

Vincent Lee, Stephan Schlamminger, Leon Chao, David B. Newell, Jon Pratt, Craig Shakarji, Clive Speake

This paper discusses the dimensional metrology challenges encountered while performing G measurements using the BIPM torsion balance and our solutions.

Strain-life performance in hydrogen of DOT pressure vessel steel

November 7, 2022

Author(s)

May Ling Martin, Peter Bradley, Damian Lauria, Robert L. Amaro, Matthew Connolly, Andrew Slifka

Strain-life testing of a 4130 pressure vessel steel was conducted in air and in a high-pressure gaseous-hydrogen environment. Hydrogen causes an order of...

When Frodo Flips: End-to-End Key Recovery on FrodoKEM via Rowhammer

November 7, 2022

Author(s)

Michael Fahr Jr., Hunter Kippen, Andrew Kwong, Thinh Dang, Jacob Lichtinger, Dana Dachman-Soled, Daniel Genkin, Alexander Nelson, Ray Perlner, Arkady Yerukhimovich, Daniel Apon

In this work, we recover the private key material of the FrodoKEM key exchange mechanism as submitted to the NIST PQC standardization process. The new mechanism...

REPEATABILITY AND SENSITIVITY OF A ROTATING DRUM METHOD FOR RHEOLOGICAL CHARACTERIZATION OF STAINLESS STEEL POWDERS USED FOR ADDITIVE MANUFACTURING

November 6, 2022

Author(s)

Justin Whiting, Vipin Tondare, Shawn P. Moylan

There remains a need for rheological characterization of metal powder used for powder-spreading-based additive manufacturing (AM). Novel powder rheometers...

GRID-VIDEO MEASUREMENT METHOD FOR A-UGV'S SMALL OBSTACLE AVOIDANCE PERFORMANCE

November 3, 2022

Author(s)

Soocheol Yoon, Roger V. Bostelman, Ann Virts

With the advancement of factory logistics into the autonomous era comes the need to validate the safety and performance characteristics of Autonomous-Unmanned...

Evaluating Inter-Laboratory Comparison Data

November 3, 2022

Author(s)

Enrico Frahm, John D. Wright

The primary purpose of inter-laboratory comparisons is to demonstrate that the uncertainty specifications of the calibration measurement capabilities of the...

The Impact of Measurement Methodology on the Diameter Measurement of Simple Additively Manufactured Features

November 2, 2022

Author(s)

Maxwell R. Praniewicz, Jason Fox, Christopher Saldana

Dimensional qualification of additive manufacturing (AM) components is a continuing research problem. Different measurement techniques implemented on the same...

Speed, the double edge sword of the Industry 4.0

October 31, 2022

Author(s)

Marion Toussaint, Sylvere Krima, Allison Barnard Feeney, Hervé Panetto

The recent digital transformation of the manufacturing world led to numerous benefits, from higher quality products to increased productivity and reduced time...

Die-Level Micrometers-Deep Subsurface Imaging for Fault Isolation Using Remote Bias Induced Electrostatic Force Microscopy

October 30, 2022

Author(s)

Evgheni Strelcov, Lin You, Yaw S. Obeng, Joseph J. Kopanski

In recent years, scanning probe microscopy (SPM) has drawn substantial attention for subsurface imaging, since the ultra-sharp AFM tip (≈10 nm in radius) can...

Learning Data-Driven Model of Damped Coupled Oscillators from System Impulse Response

October 28, 2022

Author(s)

Jacob Fabro, Gregory W. Vogl, Yongzhi Qu, Reese Eischens

Data-driven modeling of dynamical systems has drawn much research attention recently, with the goal of approximating the underlying governing rules of a...

Development of a high precision balance for measuring quantity of dispensed fluid as a new calibration reference for the becquerel

October 26, 2022

Author(s)

Sven Schulze, Kumar Arumugam, Rene Theska, Gordon A. Shaw

The 2019 redefinition of the kilogram in the International System of Units (SI) connects the unit of mass with Planck's constant (h) through electrical...

ESTABLISHING TRACEABILITY WITH A GPS DISCIPLINED OSCILLATOR/CLOCK (GPSDO/GPSDC); A PRELIMINARY REPORT

October 24, 2022

Author(s)

Andrew Novick, Michael A. Lombardi

The metrological definition of traceability for a GPSDO or GPSDC requires an unbroken series of measurements to a national standard, with known uncertainties at...

5G New Radio Sidelink Link-Level Simulator and Performance Analysis

October 24, 2022

Author(s)

Peng Liu, Chen Shen, Chunmei Liu, Fernando Cintron, Lyutianyang Zhang, Liu Cao, Richard A. Rouil, Sumit Roy

Since the Third Generation Partnership Project (3GPP) specified 5G New Radio (NR) sidelink in Release 16, researchers have been expressing increasing interest...

Characterization of AI Model Configurations For Model Reuse

October 24, 2022

Author(s)

Peter Bajcsy, Daniel Gao, Michael Paul Majurski, Thomas Cleveland, Manuel Carrasco, Michael Buschmann, Walid Keyrouz

With the widespread creation of artificial intelligence (AI) models in biosciences, bio-medical researchers are reusing trained AI models from other...

Privacy policies robustness to reverse engineering

October 21, 2022

Author(s)

A. Gilad Kusne

Differential privacy policies allow one to preserve data privacy while sharing and analyzing data. However, these policies are susceptible to an array of...

A MULTIMODAL DATA-DRIVEN DECISION FUSION METHOD FOR PROCESS MONITORING IN METAL POWDER BED FUSION ADDITIVE MANUFACTURING

October 20, 2022

Author(s)

Zhuo Yang, Jaehyuk Kim, Yan Lu, Ho Yeung, Brandon Lane, Albert T. Jones, Yande Ndiaye

Data fusion techniques aim to improve inference results or decision making by combining multiple data sources. Additive manufacturing (AM) in-situ monitoring...

Operational Impacts of IEEE 802.1Qbv Scheduling on a Collaborative Robotic Scenario

October 17, 2022

Author(s)

Rick Candell, Karl Montgomery, Mohamed Hany, Susruth Sudhakaran, Justin Albrecht, Dave Cavalcanti

Time-sensitive networking (TSN) is an emerging topic for the advancement of wireless networking for industrial applications. TSN, as defined under the umbrella...

Observation of Backward-Wave Spontaneous Parametric Downconversion in Sub-μm PPKTP

October 17, 2022

Author(s)

Paulina Kuo, Dileep Reddy, Varun Verma, Sae Woo Nam, Andrius Zukauskas, Carlota Canalias

We observed backward-wave spontaneous parametric downconversion in sub-µm periodically poled Rb-doped KTP. Pumped at 800 nm, forward-wave signal at 1400 nm and...

Effects of Modeling Decisions on the Lateral Performance of Cold-Formed Steel Framed Walls

October 17, 2022

Author(s)

Zhidong Zhang, Matthew Speicher, Amanpreet Singh, Tara Hutchinson, Benjamin Schafer

This study proposes a modeling protocol for the lateral performance of cold-formed steel (CFS) framed wall-lines that contain both steel sheet sheathed shear...

Feasibility of using depth cameras for evaluating human - exoskeleton interaction

October 14, 2022

Author(s)

Soocheol Yoon, Ya-Shian Li-Baboud, Ann Virts, Roger V. Bostelman, Milli Shah

With increased use of exoskeletons in a variety of fields such as industry, military, and health care, there is a need for measurement standards to understand...

Extracting Mathematical Concepts from Text

October 12, 2022

Author(s)

Jacob Collard, Valeria de Paiva, Brendan Fong, Eswaran Subrahmanian

We investigate some different systems for extracting mathematical entities from texts in the mathematical field of category theory, as a first step for...

Improving Support-Minors rank attacks: applications to GeMSS and Rainbow

October 12, 2022

Author(s)

John Bayron Baena Giraldo, Pierre Briaud, Daniel Cabarcas Jaramillo, Ray Perlner, Daniel Smith-Tone, Javier Verbel

The Support-Minors (SM) method has opened new routes to attack multivariate schemes with rank properties that were previously impossible to exploit, as shown by...

Key Elements to Contextualize AI-Driven Condition Monitoring Systems towards Their Risk-Based Evaluation

October 11, 2022

Author(s)

Mehdi Dadfarnia, Michael Sharp

Industrial users can be justifiably hesitant in adopting Condition Monitoring Systems (CMSs) unless evidence indicates benefits from their use. Measuring a CMS...

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