Results 51 to 60 of about 915 (151)

Technical Progress, Challenges and Prospects of HVDC Cable Accessories: A Review With Chinese Practice Insights

High Voltage, Volume 11, Issue 1, Page 1-24, February 2026.
ABSTRACT With the development of deep‐sea wind power and large‐scale onshore clean energy, the global demand for higher voltage level DC cable power transmission technology has become increasingly urgent. This paper systematically reviews the technical advancements in high voltage direct current (HVDC) cable accessories, addressing design challenges of
Zongxi Liu, Benhong Ouyang, Kaiwen Huang, Yuli Wang, Jiankang Zhao, Peng Zhao   +5 more
wiley   +1 more source

Pattern Reconfigurable UHF RFID Reader Antenna Array

IEEE Access, 2020
The growing research interest in passive RFID (Radio Frequency Identification)-based devices and sensors in a diverse group of applications calls for flexibility in reader antenna performance.
Md Abu Saleh Tajin, Kapil R. Dandekar
doaj   +1 more source

Direct Observational Evidence of the Mesoscale Gravity Wave Modulations on Low‐Latitude Sporadic E Layer

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Sporadic E (Es) layer plays essential role in ionosphere‐atmosphere coupling. Theoretical simulations show that the atmospheric gravity waves (GWs) in the lower thermosphere are the main modulatory source on Es dynamics at small spatial scales and short periods.
Junyi Wang, Xinan Yue, Xu Zhou, Yihui Cai, Feng Ding, Jorge L. Chau, David C. Fritts, Juha Vierinen, Alan Z. Liu, Baiqi Ning   +9 more
wiley   +1 more source

Sustainable Liquid Metal Composites for Soft Electronics and E‐Waste Reduction

Advanced Materials, Volume 38, Issue 5, 22 January 2026.
Liquid metal (LM) composites embody recyclability, repairability, renewability, and resilience (4R), offering a sustainable route for soft electronics. With exceptional conductivity, stretchability, and eco‐friendly recovery, these systems enable closed‐loop lifecycles and reduce e‐waste.
Abdollah Hajalilou, Elahe Parvini, Carmel Majidi   +2 more
wiley   +1 more source

7T 19F/1H MRI with perfluorocarbon‐labeled immune cells in pigs: Pilot results with a dedicated twin‐array system with pTX support

Magnetic Resonance in Medicine, Volume 95, Issue 1, Page 51-61, January 2026.
Abstract Purpose Cardiac inflammation plays a key role in many diseases. However, its underlying mechanisms and progression remain poorly understood. Using an ultra‐high field (UHF) may increase the sensitivity of MRI of inflammatory processes with 19F‐labeled immune cells.
Maxim Terekhov, Ibrahim A. Elabyad, Marwan A. Hamid, Farzad Jabbarigargari, Rebekka Grampp, Mohammadreza Keshtkar, Anja Stadtmüller, Gabriele Ulm, Sofia Dembski, Anna Frey, Ulrich Hofmann, Wolfgang R. Bauer, Laura M. Schreiber   +12 more
wiley   +1 more source

A Low Profile Two‐Sided Anti‐Metal UHF RFID Tag Antenna Based on Square–Ring Embedded Coupling Structure

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
A compact ultra‐high frequency (UHF) radio frequency identification (RFID) tag antenna for two‐sided anti‐metal performance is proposed. ABSTRACT A compact ultra‐high frequency (UHF) radio frequency identification (RFID) tag antenna for two‐sided anti‐metal performance is proposed.
Wangfu Lai, Huayun Lan, Jiade Yuan
wiley   +1 more source

Optimized Phased Antenna Array for Deep‐Targeted Microwave Hyperthermia in Brain Tumor Therapy

Concepts in Magnetic Resonance Part A, Volume 2026, Issue 1, 2026.
This study develops an optimized personalized microwave hyperthermia framework for glioblastoma treatment, integrating a 19‐channel radiofrequency array of geometrically and electromagnetically co‐optimized cosine‐curved dipole antennas. We initiated the design by optimizing the conductor geometry (amplitude, wavelength, and phase offset) to reshape ...
Haode Wang, Tongning Wu, Haoyu Jiang, Congsheng Li, Massimiliano F. Peana   +4 more
wiley   +1 more source

Do We Really Need Frequency‐Selective Surface and Metasurface Reflectors for Antenna Gain Enhancement, or Are Metallic Reflectors Enough?

International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Enhancing antenna gain remains a key requirement in modern wireless systems, particularly with the rapid evolution of 5G, emerging 6G networks, satellite links, and high‐resolution radar. Recent research trends increasingly rely on frequency‐selective surfaces (FSSs) and metasurface‐based reflectors, which offer precise electromagnetic wave control ...
A. J. A. Al-Gburi, Mohammad Rezwan Habib
wiley   +1 more source

Real‐time specific absorption rate supervision for a 32‐channel RF transmit system with virtual observation points

Magnetic Resonance in Medicine, Volume 94, Issue 6, Page 2785-2793, December 2025.
Abstract Purpose Real‐time supervision is a crucial element of an RF parallel transmit (pTx) system to supervise safety of the subject during MR imaging and to utilize the full potential of the RF array. However, the computational demand for the specific absorption rate (SAR) calculation scales much greater than linearly with the number of RF channels.
Thomas M. Fiedler, Stephan Orzada, Johannes A. Grimm, Bottyan Batkai, Stefan Dinkelacker, Fabian J. Kratzer, Christoph Klein, Markus W. May, Falk Mayer, Luisa Schweins, Mark E. Ladd   +10 more
wiley   +1 more source

Compact RFID tag antenna based on square spiral resonator

物联网学报
A miniaturized ultra-high frequency (UHF) radio frequency identification (RFID) tag antenna was designed.The antenna was composed of two square spiral resonators shorted inside and outside.By adjusting the edge length of the outer ring spiral resonator ...
Libin DAI, Zhimeng XU, Jiade YUAN
doaj   +2 more sources