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Conferences

Latency-Sensitive Networked Control Using 802.11ax OFDMA Triggering

August 22, 2024

Author(s)

Karl Montgomery, Mohamed Hany, Rick Candell

Orthogonal Frequency-Division Multiple Access (OFDMA) is a feature implemented in IEEE 802.11ax (Wi-Fi 6) that aims to improve performance by sending packets...

ProSAS: An O-RAN Approach to Spectrum Sharing between NR and LTE

August 20, 2024

Author(s)

Sneihil Gopal, David Griffith, Richard Rouil, Chunmei Liu

The Open Radio Access Network (O-RAN), an industry-driven initiative utilizes intelligent Radio Access Network (RAN) controllers and open interfaces to...

Pyramid Learning Based Part-to-Part Consistency Analysis in Laser Powder Bed Fusion

August 20, 2024

Author(s)

Erfan Ziad, Feng Ju, Zhuo Yang, Yan Lu

With the rapid growth of the manufacturing industry, laserbased metal additive manufacturing, such as laser powder bed fusion, has the potential to usher in a...

Measuring Overhang Down-Skin Dross Depth and the Inter-Dependency on Melt Pool for Laser Powder Bed Fusion Additive Manufacturing

August 20, 2024

Author(s)

Zhuo Yang, Jaehyuk Kim, Brandon Lane, Yan Lu

The overhang down-skin surface exhibits distinct behaviors compared to the regular up-skin surface in the powder bed fusion process. Evidence suggests that weak...

Quantifying High Density Polyethylene Flows in the United States using Material Flow Analysis

August 20, 2024

Author(s)

Abheek Chatterjee, Nehika Mathur, Daniel Figola, Matthew Triebe, Buddhika Hapuwatte, Ashley Hartwell, Katherine Morris

A Circular Economy (CE) aims to reduce natural resource consumption, waste generation, and related detrimental environmental, social, and economic impacts by...

5G NR and LTE Downlink Coexistence Measurements Using Software-Defined Radios

August 20, 2024

Author(s)

Nadia Yoza Mitsuishi, Yao Ma, Jason Coder

With the rapid deployment of 5G New Radio (NR) in the sub-6 GHz frequency bands, cellular operators need to accommodate this new technology within the limited...

Low-GWP Working Fluid Mixtures Screening for Industrial High Temperature Heat Pumps with Supply Temperature >200 °C

August 15, 2024

Author(s)

Jan Spale, Andreas Hoess, Ian Bell, Davide Ziviani

Single-component working fluids, which could be used in a safe, efficient, reliable, and cost-effective industrial high temperature heat pump (HTHP) subcritical...

Development of an in-situ laser calibration method for multi-laser powder bed fusion additive manufacturing system

August 14, 2024

Author(s)

Ho Yeung, David Deisenroth, Sergey Mekhontsev

A new in-situ laser calibration method for multi-laser powder bed fusion (L-PBF) systems has been developed to address the prevalent challenges of part quality...

Ontology-based Retrieval Augmented Generation (RAG) for GenAI-supported Additive Manufacturing

August 14, 2024

Author(s)

Yeun Park, Paul Witherell, Nowrin Akter Surovi, Hyunbo Cho

Conventional data analytics often fail to capture the intricate context of Additive Manufacturing (AM) processes, leading to pointed solutions and suboptimal...

Physics-Informed Multi-Task Learning for Material Removal Rate Prediction in Semiconductor Chemical Mechanical Planarization

August 13, 2024

Author(s)

M. Wahidur Rahman, Gregory W. Vogl, Xiaodong Jia, Yongzhi Qu

The chemical mechanical planarization (CMP) process is a complex and critical operation in the semiconductor manufacturing industry, involving a wide variety of...

A Simulation Study of mmWave 5G-enabled Medical Extended Reality (MXR)

August 12, 2024

Author(s)

Tanguy Ropitault, Yongkang Liu, Richard Rouil, Mohamad Omar Al Kalaa

Medical extended reality (MXR) offers innovative healthcare delivery in a variety of clinical contexts. 5G-enabled MXR refers to the use of 5G connectivity to...

Evolving Open RAN Interoperability: A Large-Scale Definition

August 12, 2024

Author(s)

Azizollah Kord, Jason Coder, Vu Le

Open RAN technology has tremendous potential to spur innovation, increase competition and flexibility, and reduce the cost of cellular systems. Today, the...

Coexistence Testing: Comparing Conducted and Radiated Test Results

August 9, 2024

Author(s)

Susanna Mosleh, Nadia Yoza Mitsuishi, Jason Coder, Carl Sunderman

In an era of ubiquitous wireless devices, ensuring their coexistence in shared electromagnetic environments has become increasingly critical. This paper...

Modeling Spiking Neurons without Spikes

August 2, 2024

Author(s)

Jeff Shainline, Bryce Primavera, Ryan O'Loughlin

While spiking neuromorphic hardware holds promise for efficient implementations of artificial intelligence, the impact has been limited due in part to a lack of...

Uncertainty quantification using Gaussian processes for topographic speed-up factors from CFD simulations

July 31, 2024

Author(s)

Yunjae Hwang, Adam L. Pintar, DongHun Yeo

Computational fluid dynamics (CFD) simulation has become increasingly popular for evaluating the topographic effects on wind fields due to its relative...

Characterizing a Frequency Converter Based on a Superconducting Coplanar Waveguide

July 30, 2024

Author(s)

Grant Giesbrecht, Nathan Flowers-Jacobs, Adam Sirois, Manuel Castellanos Beltran, Michael Vissers, JIANSONG GAO, Paul Dresselhaus, Taylor Barton

We present a technique for implementing a frequency doubler in NbTiN on silicon for operation in a cryogenic environment. The kinetic inductance of a...

Characterizing the Broadband RF Permittivity of 3D-Integrated Layers in a Glass Wafer Stack from 100 MHz to 30 GHz

July 30, 2024

Author(s)

Jacob Pawlik, Tomasz Karpisz, Nicholas Derimow, Sarah Evans, Jim Booth, Nate Orloff, Chris Long, Angela Stelson

We present a method for accurately determining the permittivity of dielectric materials in 3D integrated structures at broadband RF frequencies. With...

On-Wafer Calibration Comparisons of Multiline TRL with Platinum and Gold Conductors

July 30, 2024

Author(s)

Tomasz Karpisz, Jacob Pawlik, Johannes Hoffmann, Sarah Evans, Christian Long, Nathan Orloff, James Booth, Angela Stelson

On-wafer calibrations are critical for measurements of embedded devices at the correct reference planes. A major challenge in on-wafer calibrations is the...

Towards system level simulations of public safety applications in 5G NR systems with sidelink

July 30, 2024

Author(s)

Samantha Gamboa Quintiliani, Thomas Henderson, Wesley Garey, Chunmei Liu, Richard Rouil

The New Radio (NR) sidelink (SL) interface in fifth generation (5G) NR systems was initially specified to support NR Vehicle-to-everything (V2X) applications...

Super-resolution Localization and Tracking in WiFi Sensing

July 29, 2024

Author(s)

Jian Wang, Jack Chuang, Nada Golmie

Integrated sensing and communication (ISAC) systems have been investigated by the research and standardization communities in the recent past. Accurate...

Towards Fire Safe and Flame-Retardant-Free Upholstered Furniture

July 25, 2024

Author(s)

Giovanni Di Cristina Torres, Ryan Falkenstein-Smith, Ickchan Kim, Savannah Wessies, Matthew Bundy, Mauro Zammarano

Comprehensive Experimental Study of Insulating Aluminum Oxide (α-Al2O3) Using NUV- and EUV-Pulsed Atom Probe Tomography

July 24, 2024

Author(s)

Jacob Garcia, Ann Chiaramonti Debay, Benjamin Caplins, Luis Miaja Avila, Norman A. Sanford

Transmission Electron Imaging and Diffraction of Asbestos Fibers in an SEM

July 24, 2024

Author(s)

Jason Holm, Elisabeth Mansfield

Asbestos, a known carcinogen, can be found in consumer products ranging from building materials to textiles. While most of the products are no longer produced...

On Violations to the Time-of-Flight Assumptions in Atom Probe Tomography

July 24, 2024

Author(s)

Benjamin Caplins, Ann Chiaramonti Debay, Jacob Garcia, Luis Miaja Avila, Norman A. Sanford

Conference proceeding for M&M 2024 conference.

Database-assisted-design facilitating performance-based tall building design

July 17, 2024

Author(s)

Daniel Rhee, Sophie Sisson, Brian Carman, Mehedy Mashnad, DongHun Yeo

In recent years, wind design, particularly for high-rise buildings, has seen a paradigm shift from a code-based descriptive method to a more specific...

A CRITICAL COOLING CONSTANT TO CLARIFY TRACK-TO-TRACK OVERHEATING IN LASER POWDER BED FUSION ADDITIVE MANUFACTURING OF IN625

July 15, 2024

Author(s)

Jesse Redford, Jason Fox, Christopher Evans

Specification and Characterization of Laser Powder Bed Fusion Surface Textures for Heat Transfer in Internal Channels

July 15, 2024

Author(s)

M M Towfiqur Rahman, Chris Evans, Jason Fox, Jimmie Miller, Jaime Berez

Metal additive manufacturing (AM) and particularly, laser powder bed fusion (LPBF), is a candidate process for the manufacture of intricate internal cooling...

Scan Strategy Based Measurands For Characterization of Surface Topography in Laser Powder Bed Fusion

July 15, 2024

Author(s)

Jason Fox, Jesse Redford, Christopher Evans

CHARACTERIZATION OF ANOMALOUS (ATYPICAL) SOLIDIFIED MELT POOLS IN NICKEL SUPERALLOY 625 LASER POWDER BED FUSION

July 15, 2024

Author(s)

Christopher Evans, Jesse Redford, Jason Fox, Jordan Weaver

In Laser Powder Bed Fusion (LBPF) for metal additive manufacturing, a combination of feedstock and processing parameters such as laser power and scan velocity...

A Collaborative Study on The Characterization of Additive Manufacturing Build Surfaces and Solidified Melt Pool Topography

July 15, 2024

Author(s)

Jason Fox, Jesse Redford, Christopher Evans

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