Results 91 to 100 of about 140,601 (311)

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

Radio Observations Point to a Moderately Relativistic Outflow in the Fast X-Ray Transient EP241021a

The Astrophysical Journal
Fast X-ray transients (FXRTs) are short-lived X-ray outbursts with diverse progenitor scenarios, including compact object mergers, stellar core collapses, and tidal disruption events.
Muskan Yadav, Eleonora Troja, Roberto Ricci, Yu-Han Yang, Mark H. Wieringa, Brendan O’Connor, Yacheng Kang, Rosa L. Becerra, Geoffrey Ryan, Malte Busmann   +9 more
doaj   +1 more source

Radio sources in next-generation CMB surveys [PDF]

, 2019
CMB surveys provide, for free, blindly selected samples of extragalactic radio sources at much higher frequencies than traditional radio surveys. Next-generation, ground-based CMB experiments with arcmin resolution at mm wavelengths will provide samples ...
Bonato, Matteo, Bonavera, Laura, Burigana, Carlo, De Zotti, Gianfranco, Galluzzi, Vincenzo, Gonzalez-Nuevo, Joaquin, Hanany, Shaul, Herranz, Diego, Lopez-Caniego, Marcos, Massardi, Marcella, Negrello, Mattia, Trombetti, Tiziana   +11 more
core   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Varying Activity and the Burst Properties of FRB 20240114A Probed with GMRT Down to 300 MHz

The Astrophysical Journal
Repeating fast radio bursts (FRBs) can exhibit a wide range of burst repetition rates, from none to hundreds of bursts per hour. Here we report the detection and characteristics of 60 bursts from the recently discovered FRB 20240114A, observed with the ...
Ajay Kumar, Yogesh Maan, Yash Bhusare
doaj   +1 more source

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

Advanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam, Thomas Kister, Alexander Scholz, Sophie Sauva, Makara Lay, Tobias Kraus, Jasmin Aghassi‐Hagmann   +6 more
wiley   +1 more source

A Time-domain Study of Repeat and Nonrepeat Fast Radio Bursts

The Astrophysical Journal
Fast radio bursts (FRBs) are extremely energetic radio transients, typically classified as repeat or nonrepeat, but their origins remain uncertain. In this work, we focus on the timing characteristics of the pulses in 536 FRBs observed by CHIME with ...
Zheng-Huo Jiang, Shuo Xiao, Pei Wang, Jiao-Jiao Yang, Tong-Lei Liao, Zi-Yi You, Di Li   +6 more
doaj   +1 more source

The Benefits and Harms of Transmitting Into Space

, 2013
Deliberate and unintentional radio transmissions from Earth propagate into space. These transmissions could be detected by extraterrestrial watchers over interstellar distances.
Abe, Almár, Anderson, Atri, Bains, Ball, Baum, Baum, Baxter, Bekker, Benford, Benner, Billingham, Borucki, Bostrom, Bostrom, Bradbury, Busch, Carrigan, Cocconi, Denning, Des Marais, Devito, DeVito, Diamond, Domagal-Goldman, Dominik, Drake, Drake, Emslie, Ferris, Forgan, Freudenthal, Hanson, Haqq-Misra, Haqq-Misra, Harris, Hart, Heilhron, Howard, ISU, Jacob Haqq-Misra, Kaplan, Kasting, Kasting, Lemarchand, Lineweaver, Lineweaver, Loeb, Maccone, Michael W. Busch, Muirhead, Musso, Peters, Peters, Sagan, Sagan, Sanjoy M. Som, Scheffer, Seager, Seth D. Baum, SETI, Shapiro, Shklovskii, Shuch, Sullivan, Sullivan, Tarter, Tarter, Tegmark, Vakoch, Vakoch, Vakoch, von Hoerner, Ward, Webb, Zaitsev, Zaitsev, Zaitsev, Ćirković, Ćirković, Ćirković   +81 more
core   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source