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Conferences

Knowledge Extraction in Additive Manufacturing: a Formal Concept Analysis Approach

November 13, 2024

Author(s)

Zhuo Yang, Yan Lu, Yande Ndiaye, Mario Lezoche, Herve Panetto

In Additive Manufacturing (AM), it is still a major challenge to manage part quality, which is heavily influenced by feedstock materials, process settings, and...

A Basic Formal Ontology-Based Ontological Modeling for Plan and Occurrence, a Biomanufacturing Process Verification Use Case

November 13, 2024

Author(s)

Milos Drobnjakovic, Boonserm Kulvatunyou, Dusan Sormaz, Saruda Seeharit

Biomanufacturing has gained significant importance in recent years due to its role in developing new medications, handling pandemics, and increasing the well...

Transitioning Towards Circular Consumer Electronics Products

November 13, 2024

Author(s)

Junwon Ko, Gisele Bortolaz Guedes, Fazleena Badurdeen, I.S. Jawahir, Katherine Morris, Vincenzo Ferrero

The adoption of Circular Economy (CE) practices is continuing to gain momentum, driven by its potential to promote efficient use of resources, maximize the...

SURFACE ROUGHNESS REPEATABILITY ANALYSIS FOR MULTI-BUILD OVERHANG PARTS IN POWDER BED FUSION ADDITIVE MANUFACTURING

November 13, 2024

Author(s)

Zhuo Yang, Gi Suk Hong, Yan Lu, Brandon Lane, Chun-Chun Hu, Haw-Ching Yang

Additive manufacturing (AM) has been evolving from rapid prototyping towards applications in high-volume production and mass manufacturing. However, achieving...

ONTOLOGY-BASED CONTEXT-AWARE DATA ANALYTICS IN ADDITIVE MANUFACTURING

November 13, 2024

Author(s)

Yeun Park, Paul Witherell, Hyunbo Cho

Recent advances in Additive Manufacturing (AM), particularly in production scenarios, have been largely driven by insights achieved through data analytics. AM...

Self-Supervised Multi-Label Melt Pool Anomaly Classification in Powder Bed Fusion Additive Manufacturing

November 13, 2024

Author(s)

Zhuo Yang, Yan Lu, Gi Suk Hong, Jaehyuk Kim

Laser Powder Bed Fusion (LPBF) is a key technique in metal additive manufacturing (AM) that enables the fabrication of parts with complex geometries and...

Towards Novel Standard-Based Approach to Flexible Supply Chain Integration

November 13, 2024

Author(s)

Elena Jelisic, Boonserm Kulvatunyou, Nenad Ivezic, Hakju Oh

Today, global supply chains operate across different industries and different geo-political locations. As such, supply chain digitalization has to deal with...

Promoting AI Trustworthiness to Predict the Impacts of Internal Fires on Buildings

November 12, 2024

Author(s)

Qi Tong, Hongqiang Fang, Yihai Bao, Wai Cheong Tam

Small-Signal Model Verification and Analysis of Unmatched Multi-Finger HBT Cells at 220 GHz

November 12, 2024

Author(s)

Robert Jones, Jerome Cheron, Benjamin Jamroz, Ari Feldman, Peter Aaen

In this paper we verify the small-signal performance and simulation accuracy of two common-emitter and one common-base multi-finger HBT cells used in power...

POTENT: Post-Synthesis Obfuscation for Secure Network-on-Chip Architectures

November 5, 2024

Author(s)

Kostas Amberiadis, Dipal Halder, Sandip Ray, Yuntao Liu, Ankur Srivastava

We develop a novel post-synthesis obfuscation technique, POTENT, to protect NoC fabrics against reverse engineering attacks. POTENT integrates programmable...

Measurement of Recoating Plane Error in Laser Powder Bed Fusion Additive Manufacturing Machines with an Inertial Measurement Unit

November 5, 2024

Author(s)

Jesse Redford, Jordan Weaver, Gregory Vogl

Broadband Characterization of Flexible Conductor-Dielectric Composites

November 4, 2024

Author(s)

Luckshitha Suriyasena Liyanage, Nathan Orloff, Nicholas Jungwirth, Sarah Evans, Christian Long, Angela Stelson, Jacob Pawlik, James Booth

Broadband measurements are important for characterizing a wide range of materials for communications applications at microwave and mm-wave frequencies. Here we...

Interoperability of Digital Twins: Challenges, Success Factors, and Future Research Directions

October 30, 2024

Author(s)

Istvan David, Guodong Shao, Dawn Tilbury, Claudio Gomes, Bassam Zarkhout

The widespread adoption of digital twins gave rise to emerging systems of interconnected digital twins, often dubbed aggregated or hierarchical digital twins...

Optical studies of silicon color centers and CC-LEDs for consideration as telecom quantum light sources

October 29, 2024

Author(s)

Nikki Ebadollahi, Pradeep Namboodiri, Vijin Kizhake Veetil, Marcelo Davanco, Kartik Srinivasan, Aaron Katzenmeyer, Matthew Pelton, Joshua Pomeroy

We synthesized and studied color centers on silicon-on-insulator wafers with photoluminescence mapping and spectroscopy, and fabricated silicon W- and G- color...

Phase stabilization with single photon detection for quantum networks

October 29, 2024

Author(s)

Jabir Marakkarakath Vadakkepurayil, Daehyun Ahn, FNU Nur Fajar Rizqi Annafianto, Ivan Burenkov, Abdella Battou, Sergey Polyakov

Maintaining stable phases in interferometric systems and optical links is pivotal for the functionality of diverse quantum communication protocols. However...

Compact Homodyne Extrapolation System (CHEXS)

October 27, 2024

Author(s)

Joshua Gordon, Benjamin Moser

We present on a novel gain extrapolation antenna range, the Compact Homodyne Extrapolation System (CHEXS), that can achieve absolute antenna gain measurements...

On the Design of a Firebrand Generator

October 25, 2024

Author(s)

Jiann Yang

Detailed design principles and calculations based on a generic firebrand generator with configuration commensurate with the NIST Firebrand Generators are...

Implementing the Risk Management Framework for Additive Manufacturing Security: A Model-based Approach

October 25, 2024

Author(s)

Duncan Gibbons, Joshua Lubell, Paul Witherell

Metal additive manufacturing machines are complex and inherently digital and often cyber-physical systems. As the adoption of this manufacturing technology...

Field Strength Check Standard Probe Comparisons to Historical Measurements

October 25, 2024

Author(s)

Matthew Simons, William Watterson, Chris Parks, Vincent Neylon, Christopher Holloway, Lucas Koepke

Implementation of coherent detuning to suppress microwave leakage in cesium fountains at NIST

October 24, 2024

Author(s)

Gregory Hoth, Jeffrey Sherman, Vladislav Gerginov

A potential source of frequency bias in atomic fountains is due to atomic interactions with microwave fields outside of the resonant cavity used for Ramsey...

Progress towards accuracy evaluation of NIST-F4 Cesium fountain clock

October 24, 2024

Author(s)

Vladislav Gerginov, Gregory Hoth, Thomas Heavner, Jeffrey Sherman

This work presents preliminary results towards the evaluation of the NIST-F4 Cesium Primary Frequency Standard. We present measurements of NIST-F4 frequency...

Improving the Uncertainty of NIST Remote Time and Frequency Calibration Service

October 24, 2024

Author(s)

Andrew Novick, Aidan Montare

The National Institute of Standards and Technology (NIST) has offered remote time and frequency calibration services since the late 1980s. At that time, the...

Knowledge Constrained Deep Clustering for Melt Pool Anomaly Detection in Laser Powder Bed Fusion

October 23, 2024

Author(s)

Zhuo Yang, Yan Lu, Erfan Ziad, Feng Ju

The rapid expansion of the manufacturing sector has brought laser-based metal additive manufacturing, like laser powder bed fusion, to the forefront of...

Investigation on domain adaptation of additive manufacturing monitoring systems to enhance digital twin reusability

October 23, 2024

Author(s)

Jiarui Xie, Chun-Chun Hu, Haw-Ching Yang, Yaoyao Fiona Zhao, Zhuo Yang, Yan Lu

Powder bed fusion (PBF) is an emerging metal additive manufacturing (AM) technology that enables rapid fabrication of complex geometries. However, defects such...

An Evaluation of Methods for Assessing Robot Kinematic Model Accuracy in the Presence of Noise

October 23, 2024

Author(s)

Mitchell R. Woodside, Patrick Bazzoli, Philip A. Olubodun, J. Adam Nisbett, Helen Qiao, Douglas A. Bristow

While there are many works developing methods for modeling and calibrating robot kinematics, assessing the accuracy of those models has received little...

Development of a Robust Early-Stage Thermal Runaway Detection Model for Lithium-ion Batteries

October 22, 2024

Author(s)

Wai Cheong Tam, Jian Chen, Wei Tang, Qi Tong, Hongqiang Fang, Anthony Putorti

This paper presents the development of a fast-responding and accurate detection model for early-stage thermal runaway of a lithium-ion battery utilizing...

Deformation of PMMA samples in cone calorimeter and anaerobic gasification experiments

October 20, 2024

Author(s)

Karen De Lannoye, Isaac Leventon, Lucie Hasalova, Alexander Belt, Ernst-Arndt Reinecke, Lukas Arnold

16 Cone calorimetry and anaerobic gasification experiments are often used to assess material 17 flammability of bench-scale (coupon sized) samples in response...

Rapid response optical RIGT, and relative determination of T - T_90 across (293

October 18, 2024

Author(s)

Patrick Egan

A refractive-index gas thermometer has been used to determine T − T90 in the temperature range (293 T 433) K within about 3 µK/K relative standard uncertainty...

Overhead-Free People Counting in mmWave Network Using IEEE 802.11bf Passive Sensing

October 17, 2024

Author(s)

Tanguy Ropitault, Anirudha Sahoo, Steve Blandino, Nada Golmie

Accurately assessing the number of people in a room is essential for enhancing operational efficiency, safety, and sustainability, enabling applications such as...

Reflection of its Creators: Qualitative Analysis of General Public and Expert Perceptions of Artificial Intelligence

October 16, 2024

Author(s)

Theodore Jensen, Mary Frances Theofanos, Kristen K. Greene, Olivia Williams, Kurtis Goad, Janet Bih Fofang

The increasing prevalence of artificial intelligence (AI) will likely lead to new interactions and impacts for the general public. An understanding of people's...

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