Results 151 to 160 of about 843,694 (188)

Low‐Complexity Hybrid Beamforming for LEO Satellites: Beam Update Rate Analysis and Advanced Adaptive Precoding

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani, Thomas Delamotte, Andreas Knopp   +2 more
wiley   +1 more source

Dynamic Cell Division for Interference Management in Satellite Direct‐to‐Cell Systems

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Direct‐to‐cell (D2C) connectivity enables future non‐terrestrial networks to provide service directly to standard terrestrial user equipment (UE) when terrestrial networks (TN) are unavailable. In this work, the satellite system is considered as a secondary network that supplements existing TN coverage while minimizing interference to the ...
Satya Chan, Hee Wook Kim, Bon‐Jun Ku, Daesub Oh   +3 more
wiley   +1 more source

SMTC Configuration and Window Adjustment Strategies for Beam Hopping in NR‐NTN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Beam hopping is an effective transmission strategy for nonterrestrial networks (NTNs), enabling satellites to allocate limited power and spectrum resources across different geographical regions over time. However, in NR‐based NTN systems, beam hopping complicates synchronization monitoring because synchronization signal block (SSB) arrivals ...
Hee Wook Kim, Kyungrak Lee, Joon Gyu Ryu
wiley   +1 more source

Living Through a Changing Climate: Stress, Trauma, and Gendered Resilience Among Women in Coastal and Northern Ghana

Sustainable Development, EarlyView.
ABSTRACT Climate change is reshaping everyday life in Ghana through coastal erosion, flooding, erratic rainfall, water scarcity, extreme heat, and agricultural insecurity. This study examines how these changes produce stress, trauma, and gendered resilience among women in Salakope and Choggu Yapalsi, two climate‐vulnerable communities in coastal and ...
Jacob Kwakye
wiley   +1 more source

Cultivating and embracing plurality in abductive inquiries within strategy research

Strategic Management Journal, EarlyView.
Abstract Research Summary Abduction offers a mode of scientific inquiry that focuses on formulating explanations for unexplained phenomena. By building a bridge between philosophy of science and strategic management research, this article offers a pluralistic view of abduction, highlighting abductive triggers as the starting point in seeking ...
Prithwiraj Choudhury, Mahka Moeen, Audra Wormald   +2 more
wiley   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

Small, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong, Maheswari Sivan, Jieming Pan, Zihang Fang, Jianan Li, Zefeng Xu, Shi Zhao, Quanzhen Wan, Evgeny Zamburg, Aaron Voon‐Yew Thean   +9 more
wiley   +1 more source

Liquid‐Processed 2D Aromatic Amorphous Carbon: Defect Engineering and Universal Transport Scaling

Small, EarlyView.
Liquid‐processed graphene oxide (GO) thin films undergo a controllable crystalline–to–amorphous transition driven by thermal quenching. By kinetically tuning oxygen‐driven defect formation during reduction, scalable 2D aromatic amorphous carbon phases are stabilized, directly linking nanoscale disorder and defect topology to electronic transport ...
Fabiola Liscio, Andrea Fondacaro, Gaetana Petrone, Federico Chianese, Jasper Rikkert Plaisier, Sara Fiori, Orlando Castellano, Alice Apponi, Nicolò Galvani, Verónica Montes García, Veronica Valentini, Stefano Iacobucci, Damiano Ricciarelli, Giuseppe Fisicaro, Antonino Lamagna, Giovanni Maria Vinai, Ernesto Placidi, Alessandro Bellucci, Daniele Maria Trucchi, Paolo Samorì, Alessandro Ruocco, Samuel Lara Avila, Andrea Liscio   +22 more
wiley   +1 more source

Interplay Between Oxidation State, Intervalence Charge Transfer Transitions and Electronic Conductivity in a Series of Ru‐Based Metal–Organic Frameworks

Small, EarlyView.
Ru‐based square‐grid metal–organic frameworks undergo dramatic conductivity enhancements after chemical oxidation. The mixed‐valent states exhibit the highest conductivity values, which correlate with the appearance of intervalence charge transfer bands.
Wang Zhang, Chunyu Luo, Hiroaki Suzuki, Hiroyoshi Ohtsu, Kiyohiro Adachi, Daisuke Hashizume, Bun Chan, Koji Harano, Biplab Manna, Yuki Wada, Masa‐aki Haga, Pavel M. Usov, Masaki Kawano   +12 more
wiley   +1 more source

Mixed‐Dimensional Epitaxy of Aligned 1D vdW Nanowires on Low‐Symmetry 2D vdW Materials: Sb2X3 on ReX2 (X = S, Se)

Small, EarlyView.
Highly aligned mixed‐dimensional vdW heterostructures are achieved through vdW epitaxy of 1D Sb2X3 (X = S, Se) nanowires on low‐symmetry 2D substrates (e.g. ReX2). Reduced substrate symmetry enables aligned nanowire growth and well‐defined vdW interfaces. Atomic‐scale characterization reveals specific epitaxial relationships and stacking‐fault defects.
Maayan Persky‐Poss, Noya Ruth Itzhak, Shahar Bialer, Katya Rechav, Iddo Pinkas, Olga Brontvein, Ifat Kaplan‐Ashiri, Irit Rosenhek‐Goldian, Nir Kampf, Ernesto Joselevich   +9 more
wiley   +1 more source

Multi‐State Resistance in Microtubule‐Templated Gold Nanowires

Small, EarlyView.
The scaling limits of CMOS transistors require alternative, dynamically reconfigurable nanoscale devices. This study demonstrates the multi‐state resistance in pure gold nanowires templated by microtubules. Continuous nanowires with local inhomogeneities enable electromigration‐driven, multistate resistance modulation under voltage pulses, while ...
Borja Rodriguez‐Barea, Brenda Palestina Romero, Charlotte Kielar, René Hübner, Stefan Diez, Artur Erbe   +5 more
wiley   +1 more source