Results 171 to 180 of about 2,688,437 (267)

Meta-encryptor with multi-dimensional security architecture for wireless communications. [PDF]

Nat Commun
Liu Y, Gao W, Fu X, Jin L, Han C, Zhang L, Cui TJ.   +6 more
europepmc   +1 more source

Construction optimization and functional applications of fluorescent nanodiamonds

Responsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang, Sen Zhang, Chao Chen, Wensi Yang, Zuanquan Chen, Rui Fan, Linlin Liu, Benjian Liu, Kang Liu, Zhibo Zhang, Bing Dai, Jiaqi Zhu   +11 more
wiley   +1 more source

Mode hopping via nonlinear magnon-magnon coupling in a synthetic antiferromagnet. [PDF]

Nat Commun
You M, Song M, Seo JS, Lee D, Yoon S, Hayashi D, Shiota Y, Ono T, Kim S, Kim SK, Park AMG, Kim KJ.   +11 more
europepmc   +1 more source

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

Cavity-mediated exciton hopping in a dielectrically engineered polariton system. [PDF]

Nat Commun
Husel L, Tabataba-Vakili F, Scherzer J, Krelle L, Bilgin I, Vadia S, Watanabe K, Taniguchi T, Carusotto I, Högele A.   +9 more
europepmc   +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

Atomic state interferometry for complex vector light. [PDF]

Nanophotonics
Samanta K, Svensson SJ, Franke-Arnold S, Westerberg N.   +3 more
europepmc   +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

Transition from Surface to Hopping Conduction in Stacked Nonepitaxial Bi₂Se₃ Dual Thin Films. [PDF]

ACS Omega
Wu KH, Cheng CY, Liao BC, Huang JJ.
europepmc   +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