Results 61 to 70 of about 549,184 (227)
Ultimate Intrinsic SNR in the Torso of Realistic Body Models
Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2409-2419, April 2026.ABSTRACT Purpose This work aims to investigate how the ultimate intrinsic signal‐to‐noise ratio (uiSNR) varies with increasing static magnetic field B0$$ {B}_0 $$ in the torso of realistic body models. Methods A dipole cloud was positioned around the realistic body model and randomly excited.
Yuting Wang +4 more
wiley +1 more source
Flip Angle Errors in Actual Flip Angle Imaging Using Polyvinylpyrrolidone/Water‐Based Phantoms
Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1489-1502, March 2026.ABSTRACT Purpose The aim of this work is to report and investigate unexpected errors in actual flip angle imaging (AFI) applied to phantom fillings based on polyvinylpyrrolidone (PVP). Methods Flip angle maps of PVP/water mixtures with different PVP ratios were acquired at 3 T and 7 T using a 3D cartesian AFI. The influence of spoiling was investigated
Niklas Himburg +4 more
wiley +1 more source
A Planar Dual-Band UHF RFID Tag for Metallic Items [PDF]
Radioengineering, 2020 In this paper, a comparison of three tags based on modified patches for UHF RFID in term of size and read range performance is proposed. The antenna structure consists of a patch with an open stub and meander line for feed.
H. Bouazza +3 more
doaj
Current Protocols, Volume 6, Issue 2, February 2026.Abstract Elevated arterial pressure is a key contributor to cardiovascular disease, yet experimental models that isolate the effects of pressure from confounding systemic factors remain limited. We describe a reproducible surgical protocol to induce mid‐thoracic aortic coarctation in mice, generating a stable and quantifiable arterial pressure gradient
D. Adam Lauver +6 more
wiley +1 more source
Revista Principia, 2019 The use of UHF sensors in high voltage electrical equipment for monitoring its insulation system is widely used. In order to improve these sensors,we present an analysis of different types of dielectric materials that can be used as physical coating and ...
Marcus Vinícius Dantas de Aquino +5 more
doaj +1 more source
A Low-Profile UHF SATCOM Antenna
IEEE Transactions on Antennas and Propagation, 2018 A low-profile circularly polarized stacked patch antenna with U-slots was designed, fabricated, and measured at 240–300 MHz for satellite and communications applications. U-slots on the driven patch are proposed, and its design is optimized to improve the bandwidth of the antenna.
Gui Chao Huang, Magdy F. Iskander
openaire +1 more source
Repeatability of Susceptibility Source Separation Methods in Human Brain: A Single‐Site Study at 3 T
NMR in Biomedicine, Volume 39, Issue 2, February 2026.Repeatability of three susceptibility source separation algorithms (χ‐Separation, χ‐SepNet, and APART) was investigated using 3‐T scan–rescan data from 21 healthy subjects. The separation methods showed moderate to good repeatability in most brain regions; however, results were greatly influenced by the algorithm used, with better performance achieved ...
Nashwan Naji +4 more
wiley +1 more source
Experimental Study on Inkjet-Printed Passive UHF RFID Tags on Versatile Paper-Based Substrates
International Journal of Antennas and Propagation, 2016 We present the possibilities and challenges of passive UHF RFID tag antennas manufactured by inkjet printing silver nanoparticle ink on versatile paper-based substrates.
Han He +3 more
doaj +1 more source
Jurnal Nasional Teknik Elektro, 2013 The use of antennas as receiving electromagnetic waves can be used as a tool for the detection of partial discharge (PD) that occurs in high voltage equipment. Especially in the insulation gas substation (GIS), the characteristics of the electromagnetic
Hanalde Andre, Umar Khayam
doaj +1 more source
UHF Receiving Antennas and Transmission Lines
The Journal of the Institute of Television Engineers of Japan, 1962 UHF帯においては, いろいろな理由から, VHF帯よりさらに鋭い単一指向性をもった高利得の空中線が要求されているが, 本稿では, UHFテレビジョン放送における受信用空中線と, これに使用するフィーダについて, その実際面から概要を解説した.
Kenshiu Takagi, Taiichiro Noguchi
openaire +2 more sources