Results 101 to 110 of about 5,726,387 (246)

An AIS Base Station Credibility Monitoring Method Based on Service Radius Detection Patterns in Complex Sea Surface Environments

Journal of Marine Science and Engineering
The Automatic Identification System (AIS) utilizes base stations to manage vessel traffic and disseminate waterway information. These stations broadcast maritime safety data to vessels within their service radius using VHF signals. However, the emergence
Xiaoye Wang, Yalan Wang, Leyun Fu, Qing Hu   +3 more
doaj   +1 more source

Optically Tunable Threshold Switching and Thermally Activated Transport in Planar Ag/MAPbI3 Thin Single‐Crystal Devices

Advanced Science, EarlyView.
Planar Ag/MAPbI3 thin single‐crystal halide perovskite devices show ultralow dark current and optically tunable threshold switching. Illumination enhances the polarity‐dependent hysteresis and shifts the switching voltage, whereas temperature‐dependent measurements reveal thermally activated, contact‐limited transport, underscoring the central role of ...
Ofelia Durante, Valeria Demontis, Sebastiano De Stefano, Selene Matta, Adolfo Mazzotti, Daniela Marongiu, Emanuele Meloni, Elisa Pili, Fang Liu, Nicola Sestu, Angelica Simbula, Mauro Carta, Michele Saba, Andrea Mura, Massimiliano Di Ventra, Giovanni Bongiovanni, Antonio Di Bartolomeo   +16 more
wiley   +1 more source

Deciphering the Crystallinity‐Dependent Sensitivity of Charge Injection in n‐Channel Organic Transistors: Reliable Characterization and Optimized Performance

Advanced Science, EarlyView.
Precise characterization of n‐type organic semiconductors necessitates decoupling interfacial constraints from intrinsic charge transport. This work reveals that disordered polymers are particularly vulnerable to contact‐limited bottlenecks compared to their crystalline counterparts.
Walid Boukhili, Chan Zhang, Jianeng Ma, Changwoo Yu, Chee Leong Tan, Huabin Sun, Zhihao Yu, Guangan Yang, Xiang Wan, Li Zhu, Yong Xu, Liyang Yu, Ruipeng Li, Seung‐Hoon Lee, Zhuping Fei, Dongyoon Khim   +15 more
wiley   +1 more source

A comprehensive review of the health and environmental impacts of mobile phone masts and mitigation strategies

آلودگی‌های محیطی و توسعه پایدار شهری
The rapid expansion of mobile communication technologies has led to the widespread deployment of base stations in urban and rural areas. These infrastructures provide stable wireless connectivity through non-ionizing radiofrequency (RF) electromagnetic ...
Ahmad Asl Hashemi, Behzad Mohammadi Khangahi, Gholam Hossein Safari   +2 more
doaj   +1 more source

Coexisting Volatile and Nonvolatile Switching in 3D ALD‐IGZO Vertical RRAM for Fully Hardware‐Based Wide Reservoir Computing

Advanced Science, EarlyView.
A conformal ALD‐IGZO vertical RRAM integrates volatile and nonvolatile switching within a compact 2F architecture. Before forming, tunable volatile dynamics provide fading‐memory reservoir states, while after forming, stable multilevel conductance modulation enables hardware readout.
Seeun Lee, Jaewon Park, Nawoon Kim, Seohyeon Ju, Seong‐Cheol Jang, Hyun‐Suk Kim, Sungjun Kim   +6 more
wiley   +1 more source

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

Advanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan, Litao Wang, Tuuli‐Marjaana Koski, Lizhe An, Thomas Efferth, Yujie Fu   +5 more
wiley   +1 more source

Asymptotic Analysis of the Downlink in Cooperative Massive MIMO Systems

IEEE Open Journal of the Communications Society
We consider the downlink of a cooperative cellular communications system, where several base-stations around each mobile cooperate and perform zero-forcing to reduce the received interference at the mobile.
Itsik Bergel, Siddhartan Govindasamy
doaj   +1 more source

Light‐Absorbing‐Layer‐Free Flash Lamp Annealing for High‐Throughput Fabrication of All‐Solution‐Processed Oxide Electronics

Advanced Science, EarlyView.
A flash lamp annealing strategy using a mullite chuck enables rapid conversion of sol–gels to metal oxides on silicon and ultra‐thin glass without extra light‐absorbing layers. Direct light absorption initiates the transformation, and the low thermal conductivity of mullite promotes heat accumulation.
Zetong Li, Wei He, Guangji Wang, Jingwei Zhang, Zhimin Chai, Xinchun Lu   +5 more
wiley   +1 more source

Beamforming for 3G base stations antennas

, 2016
The electric field produced within the sectoral coverage area of mobile telecom base stations is very inhomogeneous. In this paper we investigate how beamforming can be applied to homogeneize the electric field, thereby better distributing the power ...
Gilles, Thierry, IEEE Radio and Antenna Days of the Indian Ocean (RADIO), Bodehou, Modeste   +2 more
core   +1 more source

Origin of Enhanced Efficiency and Reduced Roll‐Off in Organic Light‐Emitting Diodes Based on Pt(II) Complexes

Advanced Science, EarlyView.
Controlled Pt–Pt fine structure in square‐planar Pt(II) complexes governs metal–metal‐to‐ligand charge‐transfer (MMLCT) state formation, exciton dynamics, and organic light‐emitting diode performance. Short Pt–Pt contacts in Pt(fppz)2 enable coherent metal–metal coupling, sub‐microsecond emission and an external quantum efficiency of 29%, whereas ...
Atul Shukla, Sarah K. M. McGregor, Julian A. Steele, Innes K. Gale, Kiyoshi Miyata, Monirul Hassan, Christian McDonald, Romain J. Lepage, Eduardo Solano, Pilankatta K. Ramya, Cherumuttathu H. Suresh, Takumi Ehara, Chihaya Adachi, Ken Onda, Shih‐Chun Lo, Ebinazar B. Namdas   +15 more
wiley   +1 more source