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Conferences

Proxima: A Proxy Model-Based Approach to Influence Analysis

September 25, 2024

Author(s)

Sunny Shree, Yu Lei, Raghu Kacker, David Kuhn

Machine learning (ML)-based Artificial Intelligence (AI) systems rely on training data to perform optimally, but the internal workings of how ML models learn...

Manufacturing Digital Twin Standards

September 24, 2024

Author(s)

Guodong Shao

As a foundation of digital transformation, digital twins are critical for achieving smart manufacturing. Recent technology advancements, such as smart sensors...

Performance of New Smoke Alarms to a Range of Nuisance Cooking Sources in a Mock Kitchen

September 24, 2024

Author(s)

Amy Mensch, Thomas Cleary, Emma Veley

New smoke alarms that have passed the new broiling hamburger nuisance test introduced in ANSI/UL 217 Standard for Safety Smoke Alarms 8th Edition have reached...

Recursive Star-Mesh Transformations for Resistance Standards

September 20, 2024

Author(s)

Dean G. Jarrett, Albert Rigosi, Dominick Scaletta, Ngoc Thanh Mai Tran, Heather Hill, Alireza Panna, Cheng Hsueh Yang, Yanfei Yang, Randolph Elmquist, David B. Newell

Assessing the Degree of Feature Interactions that Determine a Model Prediction

September 17, 2024

Author(s)

Krishna Khadka, Sunny Shree, Yu Lei, Raghu Kacker, David Kuhn

Machine Learning (ML) models rely on capturing important feature interactions to generate predictions. This study is focused on validating the hypothesis that...

On Combinatorial Security Testing for the Tor Anonymity Network Client

September 17, 2024

Author(s)

Dimitris Simos, Bernhard Garn, Dominik-Philip Schreiber, Manuel Leithner, David Kuhn, Raghu Kacker

In this paper, we present an application of combinatorial security testing to the well-known anonymity network Tor. Rigorous testing of the Tor network is...

Model-Based Production Operational Control for Metal Additive Manufacturing

September 15, 2024

Author(s)

Duncan Gibbons, Paul Witherell

Metal additive manufacturing processes are influenced by many variables that affect the produced material to varying degrees. This wide range of variables and...

Ensuring System-Level Protection against Eavesdropping Adversaries in Distributed Dynamical Systems

September 14, 2024

Author(s)

Dipankar Maity, Van Sy Mai

Laser power density distribution metrology to support emerging trends in metal Additive Manufacturing

September 11, 2024

Author(s)

David Deisenroth, Sergey Mekhontsev, Jordan Weaver, Samantha Webster

The laser power density distribution (PDD) applied to a material is a predominant process parameter that directly affects the properties of parts that are built...

An Authoring Tool for Mixed Reality Interfaces for Digital Twins in Manufacturing

September 7, 2024

Author(s)

Aubrey Simonson, Guodong Shao

While the concept of digital twins has a history of at least twenty years in length, the design of interfaces for digital twins is less well studied. Extended...

Construction Quality and Assurance for Functional Recovery Design

September 6, 2024

Author(s)

Jakub Valigura, Dustin Cook, Siamak Sattar

As part of the ACI 374A Subcommittee on Design of Reinforced Concrete Structure for Functional Recovery, the authors held six expert panel discussions with...

Not All Victims Are Created Equal: Investigating Differential Phishing Susceptibility

September 6, 2024

Author(s)

Matthew Canham, Shanee Dawkins, Jody Jacobs

Repeat clickers refer to individuals who repeatedly fall prey to phishing at-tempts, posing a disproportionately higher risk to the organizations they inhabit...

CHARACTERIZATION OF MICROWAVE BLACKBODY WITH MONOSTATIC MEASUREMENT

September 5, 2024

Author(s)

Dazhen Gu, Jonah Smith, Adam Whitney, Omar Khatib, Natalie Rozman, Amanda Gregg, Willie Padilla, William Deal, Steven Reising

This paper describes a characterization method for measuring the reflectivity of blackbodies used as calibration devices in spaceborne instruments. The...

Using Commercial Source Measure Units for Traceable RF Power Measurements

September 4, 2024

Author(s)

Cole Gray, Aaron Hagerstrom, Zenn Roberts, Christian Long

Abstract—As a National Metrology Institute (NMI), the National Institute of Standards and Technology (NIST) maintains traceable measurement capabilities for a...

Traceable RF Power Metering Procedures With Thermoelectric Sensors

September 4, 2024

Author(s)

Zenn Roberts, Aaron Hagerstrom, Cole Gray, Angela Stelson, Vincent Neylon, Christian Long

The National Institute of Standards and Technology (NIST) maintains the United State's primary standards for traceable RF and mm-wave power measurements. These...

An Overarching Quality Evaluation Framework for Additive Manufacturing Digital Twin

September 2, 2024

Author(s)

Yan Lu, Zhuo Yang, Shengyen Li, Yaoyao Fiona Zhao, Jiarui Xie, Mutahar Safdar, Hyunwoong Ko

The key differentiation of digital twins from existing models-based engineering approaches lies in the continuous synchronization between physical and virtual...

Full-Scale Burning Behavior of Combustible Solids—The Impact of Material Composition on Fire Growth, Flame Structure and Heat Feedback

September 1, 2024

Author(s)

Isaac Leventon, Michael Heck, Kevin B. McGrattan, Matthew Bundy, Rick D. Davis

This paper provides an overview of selected measurements from a series of 90 full-scale fire experiments quantifying the impact of material composition on full...

Measurement of Laser Powder Bed Fusion Surfaces Using Non-contact Techniques

August 31, 2024

Author(s)

Edwin Glaubitz, Orion Kafka, Jason Fox, Joy Gockel

IN-SITU 2D AND 3D MEASUREMENTS OF PROCESS AND PERFORMANCE IN ADDITIVE MANUFACTURING: APPLICATIONS IN POLYMERS AND METALS

August 31, 2024

Author(s)

Orion Kafka, Jake Benzing, Nicholas Derimow, Newell Moser, Nik Hrabe, Callie Higgins, Jason Killgore

Stability Study of ac Voltage Source using Josephson Voltage Standards

August 30, 2024

Author(s)

Ghislain Granger, Waldemar G. Kuerten Ihlenfeld, Alain Rufenacht, Nathan Flowers-Jacobs, Anna Fox, Raegan Johnson, Jesus Mejia

The stability of an ac voltage source fabricated at the National Research Council Canada (NRC) is investigated. NRC uses differential sampling to monitor the...

Progress in the Kibble Dynamic Force Reference

August 30, 2024

Author(s)

Jared Strait, Akobuije Chijioke

We present progress in the development of a dynamic force reference instrument (KDFR) based on the Kibble principle. We describe the operating principle and...

Pulse Patterns for the Josephson Arbitrary Waveform Synthesizer

August 30, 2024

Author(s)

Nathan Flowers-Jacobs, Raegan Johnson, Jeremy Thomas, Alain Rufenacht, Anna Fox, Paul Dresselhaus, Samuel Benz

Δ-sigma algorithms are used to determine the desired sequence of quantum-based voltage pulses used by the Josephson Arbitrary Waveform Synthesizer (JAWS) to...

Dual-Frequency-Bias Programmable Josephson Voltage Standard Circuit Design

August 30, 2024

Author(s)

Alain Rufenacht, Anna Fox, Paul Dresselhaus, Samuel Benz

This paper presents a new 2 V programmable Josephson voltage standard circuit with dual microwave frequency input. This design provides three main features: (1)...

Leakage current pathways in Josephson Arbitrary Waveform Synthesizer Standards

August 30, 2024

Author(s)

Raegan Johnson, Jesus Mejia, Alain Rufenacht, Anna Fox, Nathan Flowers-Jacobs, Paul Dresselhaus, Samuel Benz

Digitizer Linearity Measurement with a Josephson Arbitrary Waveform Synthesizer

August 30, 2024

Author(s)

Jesus Mejia, Alain Rufenacht, Raegan Johnson, Anna Fox, Nathan Flowers-Jacobs, Samuel Benz, Paul Dresselhaus

This article examines the non-linearity and gain error of a commercial digitizer on the 100 mV range with a Josephson Arbitrary Waveform Synthesizer (JAWS) as a...

Optimization of Wye-Δ-Type Quantum Hall Resistance Standard

August 30, 2024

Author(s)

Yanfei Yang, Dean G. Jarrett, Alireza Panna, Albert Rigosi, David B. Newell, Randolph Elmquist, Cheng Hsueh Yang, Ngoc Thanh Mai Tran

Theoretically wye-delta transformation can be used to realize ultra-high resistances up to PΩ. For graphene-based quantum Hall array resistance standards...

Progress of the BIPM Pilot Studies on Differential Measurements of an ac Source with a Programmable Josephson Voltage Standard

August 30, 2024

Author(s)

Stephane Solve, Mun-Seog Kim, Ralf Behr, Luis Palafox, Ilya Budovsky, Alain Rufenacht

BIPM performed two pilot studies in 2023 to support the uncertainty budget for the programmable Josephson voltage standard (PJVS). The studies involved...

Detecting Firefighter's Thermal Risks in a Commercial Building Structure Using Machine Learning

August 30, 2024

Author(s)

Qi Tong, David Stroup, Wai Cheong Tam

A multi-input and multi-output (MIMO) machine learning model is developed to simultaneously detect firefighter's thermal risks across a commercial building...

Measuring VHF Detector Linearity using a Quantum-Based Source

August 30, 2024

Author(s)

Jeremy Thomas, Nathan Flowers-Jacobs, Anna Fox, Alain Rufenacht, Paul Dresselhaus

We demonstrate the use of a Josephson Arbitrary Waveform Synthesizer (JAWS) for linearity measurements of two instruments: an RF power sensor and a fast ADC...

Detecting Firefighter's Tenability Utilizing Machine Learning

August 30, 2024

Author(s)

Qi Tong, Hongqiang FANG, Eugene Yujun Fu, Wai Cheong Tam, Thomas Gernay

The proposed research aims to leverage machine learning to detect thermal operating classes and improve the tenability of firefighters in a commercial building...

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