Results 91 to 100 of about 41,590 (218)
External Stimuli‐Activable Single‐Atom Nanozymes for Bioapplications
Small, Volume 22, Issue 29, 22 May 2026.Stimuli‐activable single‐atom nanozymes (SANs) are reviewed from materials design to biomedical applications. We explain electronic‐structure tuning principles and synthesis strategies that maximize the responsiveness of metal active sites and supports to light, ultrasound, and magnetic fields.
Hyun Ko +6 more
wiley +1 more source
Adaptive Zero-Padding OFDM over Frequency-Selective Multipath Channels
EURASIP Journal on Advances in Signal Processing, 2004 We present a novel bandwidth (BW) efficient orthogonal frequency division multiplexing (OFDM) scheme with adaptive zero-padding (AZP-OFDM) for wireless transmission. Redundancy issues in OFDM based on cyclic prefix (CP), zero-padding (ZP), as well as no
Wang Neng, Blostein Steven D
doaj +1 more source
Data-Driven and Model-Driven Joint Detection Algorithm for Faster-Than-Nyquist Signaling in Multipath Channels. [PDF]
Sensors (Basel), 2021 Deng X, Bian X, Li M.
europepmc +1 more source
Small Structures, Volume 7, Issue 5, May 2026.This comprehensive review provides an overview of tantalum surface modification strategies, their impact on biocompatibility and osteointegration, and emerging advances shaping next‐generation orthopedic implant performance. Tantalum has emerged as a promising metallic biomaterial for orthopedic implants owing to its excellent biocompatibility ...
Zhenyu Yang +7 more
wiley +1 more source
Multipath Multiplexing for Capacity Enhancement in SIMO Wireless Systems
, 2017 This paper proposes a novel and simple orthogonal faster than Nyquist (OFTN) data transmission and detection approach for a single input multiple output (SIMO) system. It is assumed that the signal having a bandwidth $B$ is transmitted through a wireless
Bogale, Tadilo Endeshaw +3 more
core +1 more source
Smartphone Carrier Phase TEC: A Study Across Ionospheric Spatio‐Temporal Scales
Space Weather, Volume 24, Issue 5, May 2026.Abstract This study explores the potential of dual‐frequency smartphones as accessible tools for citizen science in ionospheric research. While prior work by Smith et al. (2024, https://doi.org/10.1038/s41586‐024‐08072‐x) demonstrated global ionospheric monitoring using aggregated pseudorange Total Electron Content (TEC) data from millions of Android ...
Nina Servan‐Schreiber +9 more
wiley +1 more source
Radio Science, Volume 61, Issue 5, May 2026.Abstract This paper reviews and classifies more than 120 recent contributions on millimeter‐wave (mm‐wave) antennas, with emphasis on their operating bands, design methods, and application domains. It surveys the main mm‐wave frequency ranges and their use in 5G/6G communications, radar and sensing, biomedical and body‐centric systems, imaging, and ...
Sarra Khacha +10 more
wiley +1 more source
EM-based blind LDPC identification in multipath channels
Tongxin xuebao, 2018 As the advent of cognitive radios,blind encoder identification has attracted increasingly attentions since it plays an important role.The existing works mainly focus on additive white Gaussian noise (AWGN) channel,while the blind identification in ...
Yu LIU +4 more
doaj +2 more sources
MM-LoRa-Mod: A non-coherent LoRa modulation scheme for underwater acoustic communications
Dianxin kexueLoRa (long-range) is an emerging low-power wide-area network technology. Facing challenges such as frequency selective fading multipath channels, existing LoRa schemes are subjected to issues like low data rates and high system complexity.
YU Xiao, XU Weikai, SUN Haixin, LIU Qi
doaj
Advancements in Multipath Mitigation for GNSS Receivers: Review of Channel Estimation Techniques
Space: Science & TechnologyMultipath interference poses substantial challenges to global navigation satellite system (GNSS) receivers, leading to inaccuracies in the time of arrival (TOA) measurement of the line of sight (LOS) signal. Therefore, to mitigate the impact of multipath
Pedro Miguel Coelho Pereira +2 more
doaj +1 more source