Results 41 to 50 of about 122,557 (242)
Solar‐Driven Photocatalytic N2 Reduction to Ammonia Using Plasmonic Au@NiZIF‐8 MOF Hybrids
Advanced Optical Materials, Volume 13, Issue 34, December 2, 2025.AuNSTs@NiZIF‐8 core‐shell photocatalysts are engineered for plasmon‐driven N2 reduction under visible light. The enhancement of Ni absorption, improving the efficiency of the metal center catalysts through the nanoantenna effect of the AuNP, combined with the injection of hot electrons and holes into the orbitals of the Ni atoms, results in a hybrid ...
Belén Arjones‐Fernández +8 more
wiley +1 more source
Identity‐Enabled CDMA LiDAR for Massively Parallel Ranging with a Single‐Element Receiver
Laser &Photonics Reviews, Volume 19, Issue 23, December 3, 2025.A novel LiDAR system integrates CDMA modulation with a single‐element detector to achieve massive channel parallel 3D imaging. By using a user identification code and a correlation‐based feedback loop, it overcomes signal collisions and the near‐far problem.
Yixiu Shen, Zi Heng Lim, Guangya Zhou
wiley +1 more source
4G: Expectativas, Aplicaciones y Retos Existentes en su Implementación
Prisma Tecnológico, 2016 Cada vez son mayores los requerimientos de los sistemas inalámbricos por la creciente necesidad de información diversa por parte de los usuarios. Nos encontramos actualmente en le punto de transición entre una generación de tecnología y otra. Y si bien
Francisco Tello
doaj
Bit Error Rate pada Sistem MIMO MC-CDMA dengan Teknik Alamouti-STBC
Techne, 2017 Pada makalah ini dilaporkan hasil penelitian sistem MIMO MC-CDMA dengan teknik Alamouti Space Time Block Code (STBC) menggunakan dua antena pengirim dan dua antena penerima. Kinerja sistem diukur dengan nilai Bit Error Rate (BER).
Sekar Harlen +2 more
doaj +1 more source
Advanced Energy Materials, Volume 15, Issue 41, November 4, 2025.Layered halide double perovskites have emerged as promising alternatives to toxic lead‐based low‐dimensional perovskite materials for more sustainable optoelectronics. Their molecular design and its impact on the material characteristics, as well as the resulting functionality, is reviewed while discussing challenges and opportunities for future ...
Maryam Ghasemi +4 more
wiley +1 more source
EURASIP Journal on Advances in Signal Processing, 2003 The goal of this paper is to compare the performance of the linear minimum mean square error (MMSE) detector for a class of code division multiple access (CDMA) systems in time and frequency selective channels. Specifically, we consider direct sequence (
Tamer A. Kadous, Akbar M. Sayeed
doaj +1 more source
Canadian water‐related fatalities: Demographic, situational, and environmental risk factors
Journal of Forensic Sciences, Volume 70, Issue 6, Page 2403-2419, November 2025.Abstract Unintentional water‐related deaths are an ongoing global problem, despite being named by the United Nations as one of the leading preventable causes of death. To address the need for enhanced analysis of drowning risk factors, including demographic and situational conditions that may influence death outcomes, this research involved a three ...
Vienna Chichi Lam +4 more
wiley +1 more source
Randomly spread CDMA: asymptotics via statistical physics [PDF]
IEEE Transactions on Information Theory, 2005 This paper studies randomly spread code-division multiple access (CDMA) and multiuser detection in the large-system limit using the replica method developed in statistical physics. Arbitrary input distributions and flat fading are considered.
Dongning Guo, S. Verdú
semanticscholar +1 more source
Revealing Chronotypes Across Aquatic Species Using Acoustic Telemetry
Fish and Fisheries, Volume 26, Issue 6, Page 1134-1145, November 2025.ABSTRACT Acoustic telemetry offers valuable opportunities to investigate individual variability in circadian‐related and other behaviours and how environmental cues shape these patterns in wild fish populations. However, this potential has not yet been fully exploited.
Martina Martorell‐Barceló +27 more
wiley +1 more source
Research of mine wireless broadband transmission technology
Gong-kuang zidonghua, 2013 The paper put forward that mine wireless broadband transmission technology is a key technology to meet with requirements of mobile monitoring, video and voice communication on cutting face, and proposed that mine wireless broadband transmission should ...
SUN Ji-ping
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