Results 51 to 60 of about 549,184 (227)

Home ranges, feeding sites, and daily movement behavior of the highly threatened Livingstone's fruit bat revealed through GPS tracking

open access: yesConservation Science and Practice, EarlyView.
Livingstone's fruit bat GPS tracks during day‐ and nighttime on Anjouan, Comoros, identifying likely feeding sites. Abstract The highly threatened Livingstone's fruit bat, Pteropus livingstonii, is endemic to only two islands of the Union of the Comoros, a country with some of the highest deforestation rates worldwide.
Isabella Mandl   +8 more
wiley   +1 more source

Carbohydrate intake of 10 g/kg body mass rapidly replenishes liver, but not muscle glycogen contents, during 12 h of post‐exercise recovery in well‐trained cyclists

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Exhaustive cycling exercise substantially reduces liver and muscle glycogen stores. During 12 h of post‐exercise recovery without carbohydrate intake, glycogen stores remain depleted. In contrast, when carbohydrate is consumed at 10 g/kg body mass (BM), provided during the first 6 h as sucrose beverages (1.2 g/kg BM/h), liver ...
Cas J. Fuchs   +15 more
wiley   +1 more source

Dual-band HF-UHF RFID tag antenna

open access: yesElectronics Letters, 2009
A dual-band HF and UHF RFID tag antenna with two feeding points is presented, fabricated and measured. A convenient HF resonance is obtained with an HF ASIC chip as well as good impedance matching with UHF ASIC chip in the European RFID UHF band. Tuning techniques of the design parameters are proposed, and tag performance in both frequency bands is ...
Iliev, P.   +3 more
openaire   +1 more source

Motion‐ and Field‐Robust Mesoscopic Whole‐Brain T2*$$ {T}_2^{\ast } $$‐Weighted Imaging at 7 and 11.7 T Using Servo Navigation

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 5, Page 2658-2670, May 2026.
ABSTRACT Purpose To mitigate artifacts related to motion and field changes in high‐resolution T2*$$ {T}_2^{\ast } $$‐weighted human brain imaging using servo navigation at ultra‐high fields up to 11.7 T. Methods MR‐based servo navigators were integrated into a segmented 3D‐EPI sequence to allow for prospective correction of involuntary head motion and ...
Matthias Serger   +15 more
wiley   +1 more source

BIRDS-1 CubeSat Constellation Using Compact UHF Patch Antenna

open access: yesIEEE Access, 2018
BIRDS-1 satellites, a constellation of five identical 1U CubeSats, were designed, manufactured, assembled, integrated, and tested at LASINE Laboratory, Kyutech, Japan.
Md. Samsuzzaman   +3 more
doaj   +1 more source

Metamaterial-based transmit and receive system for whole-body magnetic resonance imaging at ultra-high magnetic fields. [PDF]

open access: yesPLoS ONE, 2018
Magnetic resonance imaging (MRI) at ultra-high fields (UHF), such as 7 T, provides an enhanced signal-to-noise ratio and has led to unprecedented high-resolution anatomic images and brain activation maps.
Tim Herrmann   +14 more
doaj   +1 more source

10.5 T In Vivo Head Imaging With Universal RF Shimming

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 5, Page 2776-2785, May 2026.
ABSTRACT Purpose Brain MR imaging at 10.5 T ultra‐high field offers significant improvements in signal‐to‐noise ratio (SNR), but faces challenges with B1+ inhomogeneity. Parallel‐transmission (pTx) can be used to achieve a more uniform RF field distribution, but necessitates the use of B1+ calibration in the region of interest.
Young Woo Park   +4 more
wiley   +1 more source

A Method for Separating Multisource Partial Discharges in a Substation Based on Selected Bispectra of UHF Signals

open access: yesApplied Sciences, 2020
A method for separating multisource partial discharges (PDs) in a substation is proposed based on selected bispectra of ultrahigh frequency (UHF) electromagnetic waves. Bispectra are sensitive to Gaussian noises and processes of symmetrical distribution.
Zhimin He   +4 more
doaj   +1 more source

First In Vivo 23Na Human Imaging at 10.5 T Using a Combined Sodium‐Proton Transceiver Body Array

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 2429-2441, April 2026.
ABSTRACT Purpose To demonstrate the first in vivo human 23Na MRI at 10.5 T using a novel dual‐tuned transceiver body array and to evaluate a self‐gating approach for respiratory motion compensation, focusing on renal imaging. Methods A custom‐built eight‐channel 23Na‐loop 1H‐dipole transceiver array was designed, constructed, and characterized.
Simon Schmidt   +2 more
wiley   +1 more source

A Compact Dual-Band RFID Tag Antenna Mountable on Metallic Objects

open access: yesInternational Journal of Antennas and Propagation, 2015
A compact (50 × 50 × 4 mm3) dual-band radio frequency identification (RFID) tag antenna mountable on metallic objects is proposed for the ultra-high frequency (UHF) band (917∼923.5 MHz) and the microwave (MW) band (2.4∼2.45 GHz).
Byeonggwi Mun   +4 more
doaj   +1 more source

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