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Search Publications

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Displaying 9626 - 9650 of 9863

New Precast Concrete Moment Connections under a Column Removal Scenario

September 22, 2025
Author(s)
Malcolm Ammons, Jonathan Weigand, Travis Thonstad
This technical note presents an experimental investigation of the performance of five novel precast concrete moment-resisting connections subjected to a simulated column removal scenario. The objectives of the investigation were 1) to characterize the

Detailed radiation modeling of two flames relevant to fire simulation using Photon Monte Carlo - Line by Line radiation model

September 5, 2024
Author(s)
Chandan Paul, Somesh Roy, Johannes Sailer, Fabian Braennstroem, Mohamed Ahmed, Arnaud Trouve, Hadi Bordbar, Simo Hostikka, Randall J. McDermott
This work reports benchmark data sets for radiative heat transfer in two distinct fire configurations obtained from the Measurement and Computation of Fire Phenomena (MaCFP) working group database. The cases include a 19.2 kW non-sooting turbulent methanol

LabelVizier: Interactive Validation and Relabeling for Technical Text Annotations

March 30, 2023
Author(s)
Xiaoyu Zhang, Xiwei Xuan, Rachael Sexton, Alden A. Dima
With the rapid accumulation of text data brought forth by advances in data-driven techniques, the task of extracting "data annotations"—concise, high-quality data summaries from unstructured raw text—has become increasingly important. Researchers in the

Nondestructive quantification of single crystal elasticity for additively manufactured SB-CoNi-10C, IN625, and Ti64

February 2, 2023
Author(s)
Jeff Rossin, Patrick Leser, Jake Benzing, Chris Torbet, Peter Dillon, Stephen Smith, Samantha Daly, Tresa Pollock
Resonant ultrasound spectroscopy (RUS) is capable of determining the single crystal elastic constants from polycrystalline specimens with known crystallographic texture. However, the calculated single crystal elastic constants vary with the measured

Assessment of intra-build variations in tensile strength in electron beam powder-bed fusion Ti-6Al-4V part 2: Effects of powder mixing

May 31, 2022
Author(s)
Nicholas Derimow, Jake Benzing, Orion Kafka, Newell Moser, Priya Pathare, Michael Walker, Frank DelRio, Nik Hrabe
In Part 2 of this paper series, high-throughput tensile testing and characterization of porosity, microstructure, and oxygen content was carried out on Ti-6Al-4V samples that were fabricated via electron beam powder-bed fusion (PBF-EB) to test our

Novel or Improved NDE Inspection Capabilities for Additively Manufactured Parts

February 26, 2022
Author(s)
Ward Johnson, Anne-Francoise Obaton, Alex Van den Bossch, Bryan Butsch, Imane Zouggarh, Olivier Burnet, Florent Soulard
Additive manufacturing (AM) enables the production of parts with extremely complex shapes, such as lattice structures and internal structures (cavities, channels). As a result of this geometric complexity, the applicability of most conventional

Towards An Adaptive Time-Triggered Protocol in Wireless Networks

October 19, 2021
Author(s)
Jin Zhang, Fan Liang, Wei Yu, David W. Griffith, Wenqi Guo, Avi Gopstein
Time sensitive activities occur extensively in industrial Internet of Things (IoT) environments. Classical time-triggered protocols in wired networks, such as Ethernet, have been proven effective in supporting real-time and safety-critical communications

Crystal Structure, Sorption Property and Electronic Structure of the Flexible MOF, (Ni-4,4'azopyridine)[Ni(CN)4]

August 16, 2021
Author(s)
Winnie Wong-Ng, Gregory T. McCandless, Jeffrey T. Culp, Matthew Lawson, Yu-Sheng Chen, Daniel Siderius, Lan Li
The flexible metal organic framework (MOF) compound, Ni(L)[Ni(CN)4], (L = 4,4'azopyridine (C10N4H8), nicknamed AzoPyr) is a 3D porous material that adopts the Hofmann-type structure. This paper reports our synthesis of Ni-AzoPyr and its structural, bonding

The mutation spectrum shapes the spectrum of adaptive substitutions

May 20, 2021
Author(s)
Alejandro Cano, Hana Rozhonova, Arlin B. Stoltzfus, David McCandlish, Joshua Payne
Evolutionary adaptation can be conceived as a series of substitutions representing mutation-fixation events. The changes that are more likely will appear more frequently in the aggregate spectrum of adaptive substitutions. Recent studies establish that

Loading Protocols and Backbone Curves: U.S. and Japan Perspectives

September 13, 2020
Author(s)
Bruce F. Maison, Kazuhiko Kasai, Matthew Speicher
With the gaining popularity of performance-based engineering, it is essential to have reliable estimates of component (e.g., steel beam or column) performance under actual earthquake loading demands. In the United States, a component backbone curve

Nesting and Scheduling Problems for Additive Manufacturing: A Taxonomy and Review

August 21, 2020
Author(s)
Yosep Oh, Paul Witherell, Yan Lu, Timothy A. Sprock
With the trends of Industry 4.0 spanning physical and virtual worlds, Additive Manufacturing (AM) has been the mainstream for realizing complex geometries designed in computers. Meanwhile, a considerable number of AM studies have focused on effectively

Simulation Testbed for Railway Infrastructure Security and Resilience Evaluation

April 8, 2020
Author(s)
Bradley Potteiger, Himanshu Neema, Xenofon Koutsoukos, CheeYee Tang, Keith A. Stouffer
The last decade has seen an influx of digital connectivity, operation automation, and remote sensing and control mechanisms in the railway domain. The management of the railway operations through the use of distributed sensors and controllers and with

Highland games: A benchmarking exercise in predicting biophysical and drug properties of monoclonal antibodies from amino acid sequences

April 6, 2020
Author(s)
John E. Schiel, Coffman Jon, Bruno Marques, Griesbach Jan, Ambrose Williams, Gisela Ferreira, Rushd Khalaf, David Roush, Charles Haynes
Biopharmaceutical product and process development does not yet take advantage of predictive computational modeling to nearly the degree seen in industries based on smaller molecules. To assess and advance progress in this area, spirited coopetition was

Measurement of thermophysical properties of NIST SRM 1155a (Cr18-Ni12-Mo2)

December 9, 2019
Author(s)
Peter Pichler, Brian Simonds, Jeffrey W. Sowards, Gernot Pottlacher
SRM 1155a is an AISI 316 stainless steel (Cr18-Ni12-Mo2) and Standard Reference Material (SRM) intended for use with test methods for elemental analysis. At the National Institute of Standards and Technology (NIST) in Boulder, Colorado dynamic absorptance

Potential Use of Lightweight Aggregate (LWA) Produced from Bottom Coal Ash for Internal Curing of Concrete Systems

October 1, 2019
Author(s)
Mohammad Balapour, Weijin Zhao, Edward Garboczi, Nay Ye Oo, Sabrina Spatari, Grace Hsuan, Peter Billen, Yaghoob Farnam
This study evaluates the potential use of a novel lightweight aggregate (LWA), spherical porous reactive aggregate (SPoRA), which is produced from waste coal bottom ash, for internal curing of concrete. Engineering properties of SPoRA required for concrete

WHERE DO WE START? GUIDANCE FOR TECHNOLOGY IMPLEMENTATION IN MAINTENANCE MANAGEMENT FOR MANUFACTURING

July 23, 2019
Author(s)
Michael P. Brundage, Thurston B. Sexton, Melinda Hodkiewicz, Katherine C. Morris, Jorge Arinez, Farhad Ameri, Jun Ni, Guoxian Xiao
Recent efforts in Smart Manufacturing (SM) have proven quite effective at elucidating system behavior using sensing systems, communications and computational platforms, along with statistical methods to collect and analyze real-time performance data

Dynamics of Hydride Ions in Metal Hydride-Reduced BaTiO 3 Samples Investigated with Quasielastic Neutron Scattering

January 31, 2019
Author(s)
Carin Eklof-Osterberg, Reji Nedumkandathil, Ulrich Haussermann, Aleksander Jaworski, Andrew J. Pell, Madhu Sudan Tyagi, Niina H. Jalarvo, Bernhard Frick, Antonio Faraone, Maths Karlsson
Perovskite-type oxyhydrides, BaTiO 3-xH^ x, have been recently shown to exhibit hydride ion (H -) conductivity at elevated temperatures, but the underlying mechanism of hydride ion conduction and how it depends on temperature and oxygen vacancy

A Soot Deposition Gauge for Fire Measurements

March 12, 2018
Author(s)
Amy E. Mensch, Thomas G. Cleary
The goal of this exploratory project is to demonstrate the feasibility of a conductometric measurement to determine the time-resolved soot deposition on surfaces in fire environments. Quantitative soot deposition data enabled by this measurement method is
Displaying 9626 - 9650 of 9863
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