Results 201 to 210 of about 777,156 (336)

Coaxial Dipole Array With Switching Transmit Sensitivities for Ultrahigh Field MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate dipole antennas with electronically switchable transmit field patterns to improve flip angle homogeneity in ultra‐high field MRI. Methods Reconfigurable dipole elements that could produce two distinct electronically switchable B1+$$ {B}_1^{+} $$ field profiles were conceptualized and constructed. Eight such elements were
Dario Bosch, Georgiy A. Solomakha, Felix Glang, Martin Freudensprung, Nikolai Avdievich, Klaus Scheffler   +5 more
wiley   +1 more source

Optically Controlled Bias-Free Frequency Reconfigurable Antenna. [PDF]

Sensors (Basel)
Younus KM, Sayidmarie K, Sultan K, Abbosh A.   +3 more
europepmc   +1 more source

Reconfigurable Multifunctional Transmission Metasurface Polarizer Integrated with PIN Diodes Operating at Identical Frequencies

Jianyu Lin, Dongying Li, Wenxian Yu
openalex   +2 more sources

An innovative in-body adjustable triple-band Notch UWB monopole antenna with improved bandwidth performance. [PDF]

Sci Rep
Abdollahvand M, Khorshidi M, Sobhi-Givi S, Ghosh S.   +3 more
europepmc   +1 more source

Low cost W- band SPST PIN diode switch by Q-MMIC technology

, 2015
Zheng Xu
openalex   +1 more source

Progress Toward Efficient Wide‐Gap Cu(In,Ga)(S,Se)2 Thin‐Film Solar Cells

Progress in Photovoltaics: Research and Applications, EarlyView.
Wide‐gap Cu (In,Ga)(S,Se)2 thin‐film solar cells are studied in view of their performance, limitations, and opportunities for further optimization. Different sources of open circuit voltage limitations were discussed and weighted. Interface recombination appears the main recombination channel, which however can be influenced heavy alkali treatment ...
Setareh Zahedi‐Azad, Roland Scheer, Dimitrios Hariskos, Stefan Paetel, Wolfram Hempel, Wolfram Witte, Hao Luo, Oana Cojocaru‐Mirédin, Mary Blankenship, Dirk Hauschild, Victor van Maris, Lothar Weinhardt, Clemens Heske, Thomas Unold, José A. Márquez, Jasmin Seeger, Florian Wilhelmi, Michael Hetterich, Thomas Niesen, Patrick Eraerds, Thomas Dalibor, Xiaowei Jin, Reinhard Schneider, Dagmar Gerthsen, Di Wang, Christian Kübel   +25 more
wiley   +1 more source

Dual-Mode Reconfigurable Frequency-Selective Surface for Switching Between Narrowband and Wideband Applications. [PDF]

Micromachines (Basel)
Uslu B, Bayer Keskin SE, Türker Tokan N.   +2 more
europepmc   +1 more source

Engineering Dosimetric Excellence In Total Body Irradiation: Tomotherapy‐Driven Protocols for Precision and Reproducibility

Precision Radiation Oncology, EarlyView.
• Objective: Assess helical Tomotherapy‐based TBI for clinical feasibility, dosimetric reproducibility, and in‐vivo accuracy using dual‐orientation simulation and patient‐specific QA. • Methodology: Implementation of ArcCHECK 3D diode array, ionization chamber verification, and in‐vivo dosimetry with OSLDs at 16 anatomical sites to ensure precise dose ...
Sandeep Singh, Dipesh, Supratik Sen, Abhay Kumar Singh, Mahipal, Manindra Bhushan, Jaskaran Singh Sethi, David K. Simson, Munish Gairola   +8 more
wiley   +1 more source

Over 0.1 W root-mean-square output achieved in magneto-mechano-electric generators using Mn-doped PIN-PMN-PT single crystals. [PDF]

Nat Commun
Pattipaka S, Kim SD, Jeong Y, Sung SH, Heo SH, Min Y, Park KI, Zhang T, Ryu J, Yoon WH, Lee SG, Hwang GT.   +11 more
europepmc   +1 more source

A scalable UWB-to-reconfigurable MIMO filtenna with single-varactor tuning and enhanced isolation for adaptive 5G and cognitive radio systems. [PDF]

Sci Rep
Fouda HS, Hamoud AS, Attia MA.
europepmc   +1 more source