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Displaying 151 - 175 of 143537

Insights on grain refinement of Al-Mn-Fe-Si alloy via in situ reaction during laser direct energy deposition

February 2, 2025
Author(s)
Qingyu Pan, Fan Zhang, Deepak Vikraman Pillai, Zilong Zhang, Yufeng Zheng, Lang Yuan, Monica Kapoor, John Carsley, Xiaoyuan Lou
In the present work, we studied the grain refinement by adding in situ reactants, pure titanium (Ti) or a combination of Ti and boron (B), and investigated the governing mechanism in Al-Mn-Fe-Si 3104 alloy made by laser direct energy deposition (DED)

Error Floor Prediction with Markov Models for QC-MDPC Codes

February 1, 2025
Author(s)
Sarah Arpin, Jun Bo Lau, Ray Perlner, Angela Robinson, Valentin Vasseur, Jean-Pierre Tillich
Quasi-cyclic moderate-density parity check (QC-MDPC) code-based encryption schemes under iterative decoders offer highly-competitive performance in the quantum-resistant space of cryptography, but the decoding-failure rate (DFR) of these algorithms are not

Impacts of household water demands and water heater delivery temperatures on opportunistic premise plumbing pathogens (OPPPs) in a residential setting

February 1, 2025
Author(s)
Alshae Logan, Jumana Aljafari, Visesh Uppoor, Tania Ullah, Jennifer Dootz
Efforts aimed towards water and energy conservation within residential buildings may create enhanced conditions for Opportunistic Premise Plumbing Pathogens (OPPPs) growth. To investigate this issue, a study was conducted to assess the effect of water

Layer ensemble averaging for fault tolerance in memristive neural networks

February 1, 2025
Author(s)
Osama Yousuf, Brian Hoskins, Karthick Ramu, Mitchell Fream, William Borders, Advait Madhavan, Matthew Daniels, Andrew Dienstfrey, Jabez McClelland, Martin Lueker-Boden, Gina Adam
Advancements in continual learning with artificial neural networks have been fueled in large part by scaling network dimensionalities. As this scaling continues, conventional computing systems are becoming increasingly inefficient due to the von Neumann

QM-ARC: QoS-aware Multi-tier Adaptive Cache Replacement Strategy

February 1, 2025
Author(s)
Lydia Ait Oucheggou, Abdella Battou, Jalil Boukhobza, Stephane Rubini
Distributed data-centric systems, such as Named Data Networking, utilize in-network caching to reduce application latency by buffering relevant data in high-speed memory. However, the significant increase in data traffic makes expanding memory capacity

Aflatoxin B1-induced DNA adduct formation in murine kidney and liver

January 31, 2025
Author(s)
Pawel Jaruga, Vladimir Vartanian, Irina Minko, M Miral Dizdar, Amanda McCullough, R. Stephen Lloyd
Aflatoxicosis is a life-threatening nephrotoxic condition arising from eating foods highly contaminated with aflatoxin-producing molds. Additionally, chronic aflatoxin exposures are linked to enhanced hepatocellular carcinomas. Using recent advances in

Calibrating laser Doppler anemometers utilizing an optical chopper

January 31, 2025
Author(s)
Christopher Crowley, Iosif Isaakovich Shinder, Michael R. Moldover, Joey Boyd, James Filla, Aaron Johnson
Laser Doppler anemometers (LDAs) use scattered light to determine velocity components of a flowing fluid. The operating principal of LDAs is simple conceptually; however, it is impractical to trace the LDA-determined velocities to the SI by characterizing

Designing Usable Audio for Voting Systems: Best Practices and a Test Approach

January 31, 2025
Author(s)
Lynn Baumeister, Whitney Quesenbery, Sharon J. Laskowski
Voting systems must support multiple interaction modes: presenting information both visually and auditorily, accepting navigation and selections from both screen touches and key presses on a tactile controller. The best practices outlined in this document

Security Property Verification by Transition Model

January 31, 2025
Author(s)
Chung Tong Hu
Verifying the security properties of access control policies is a complex and critical task. The policies and their implementation often do not explicitly express their underlying semantics, which may be implicitly embedded in the logic flows of policy

Using enantioselective biosensors to evolve asymmetric biocatalysts

January 30, 2025
Author(s)
d'Oelsnitz Simon, Wantae Kim, Haley Hardtke, Svetlana Ikonomova, Nina Alperovich, Olga Vasilyeva, Michael James, Eric Zigon, Charlie Johnson, Andrew Ellington, Quincey Justman, Michael Springer, Jessie Zhang, Pamela Silver, David Ross
Biocatalysts are championed for their exquisite stereochemistry, but slow chromatographic separations necessary to measure enantiomeric excess can bottleneck their development. Prokaryotic transcription factors can address this limitation by transducing

Autonomous bootstrapping of quantum dot devices

January 28, 2025
Author(s)
Anton Zubchenko, Danielle Middlebrooks, Torbjoern Rasmussen, Lara Lausen, Ferdinand Kuemmeth, Anasua Chatterjee, Justyna Zwolak
Semiconductor quantum dots (QDs) are a promising platform for multiple different qubit implementations, all of which are voltage controlled by programmable gate electrodes. However, as the QD arrays grow in size and complexity, tuning procedures that can

Time transfer performance of Broadcast Positioning System (BPS)

January 28, 2025
Author(s)
Tariq Mondal, Jeffrey Sherman, David Howe
The Global Positioning System (GPS) is the most prevalent Global Navigation Satellite System (GNSS) that provides Position, Navigation, and Timing (PNT). GNSS vulnerability is well-known, and the search continues to find another independent system that can

Evaluation of L5 Band GNSS for Use in Time-Transfer

January 27, 2025
Author(s)
Benjamin Pera, Andrew Novick
The L5 frequency band of GPS features a higher power, higher code rate, and superior performance in GNSS denied or degraded environments. GPS L5 is pre-operational at time of writing with 17 satellites but has sufficient coverage for testing and utilizing
Displaying 151 - 175 of 143537