Results 61 to 70 of about 31,794 (223)

Next Generation 7 Tesla Arterial Spin Labeling With Rotated Spiral Acquisition Enables Mesoscale Resolution in 3D Brain Perfusion and Functional MRI

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2702-2717, May 2026.
ABSTRACT Purpose To achieve high resolution (≤ 1 mm isotropic) whole‐brain perfusion imaging at 7 T with next generation ASL pulse sequence, reconstruction algorithm, and MRI hardware. Methods We capitalized on three major innovations: (1) FLASH‐based pseudo‐Continuous ASL (pCASL) sequence with rotated golden‐angle stack‐of‐spirals (rGA‐SoS) sampling; (
Chenyang Zhao, Fanhua Guo, Zidong Yang, Xingfeng Shao, Samantha J. Ma, Alexander J. S. Beckett, An T. Vu, David A. Feinberg, Danny J. J. Wang   +8 more
wiley   +1 more source

A Compact Broad-band UHF RFID Tag Loaded with Triangular SRR Arrays

Advanced Electromagnetics, 2018
A novel compact planar UHF RFID tag with broadband operation and enhanced read range characteristics are presented. The structure of the tag consists of a T- matched dipole antenna whose arms are orthogonally loaded with Triangular SRR arrays. Triangular
A. K. K. John, T. Mathew
doaj   +1 more source

Spin- and charge-density waves in the Hartree-Fock ground state of the two-dimensional Hubbard model

, 2011
The ground states of the two-dimensional repulsive Hubbard model are studied within the unrestricted Hartree-Fock (UHF) theory. Magnetic and charge properties are determined by systematic, large-scale, exact numerical calculations, and quantified as a ...
Anderson P W, Capone M, Chang C, Chang C, Chia-Chen Chang, Eric J Walter, Igoshev P A, Jie Xu, Maier T A, Martin R M, Montorsi A, Overhauser A W, Penn D R, Rasetti M, Schulz H J, Shiwei Zhang, Sénéchal D, Zhang S, Zhang S   +18 more
core   +1 more source

Deuterium 1‐Channel Transmit/16‐Channel High Impedance Receive Array Combined With 16‐Channel 1H Dual‐Row Transceiver Array for 7 Tesla Brain Imaging

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 3021-3030, May 2026.
ABSTRACT Purpose To develop and evaluate an 2H/1H coil configuration that enables deuterium metabolic imaging at 7 T while preserving high‐quality 1H anatomical imaging. Methods An 16‐channel 2H high‐impedance receive array was combined with a 2H transmit birdcage and a 16‐channel dual‐row 1H transceiver array.
Bei Zhang, Wenkai Liang, Chichen Dong, Anke Henning   +3 more
wiley   +1 more source

A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications

International Journal of Antennas and Propagation, 2007
A broadband circularly polarized stacked probe-fed antenna suitable for UHF RFID applications is presented and studied. The proposed antenna is fed by two probes which are connected to a hybrid coupler.
Hang Leong Chung, Xianming Qing, Zhi Ning Chen   +2 more
doaj   +1 more source

Wind Farms Influence on Radiocommunication Systems Operating in the VHF and UHF Bands

Journal of Telecommunications and Information Technology, 2015
The following paper discusses several aspects connected with the wind farms’ impact on radiocommunication systems. The first part of this article is filled with the analysis of the ITU-R BT.1893 model, which was originally created for the analysis of ...
Krzysztof Bronk, Adam Lipka, Rafał Niski, Błażej Wereszko   +3 more
doaj   +1 more source

Unified description of floppy and rigid rotating Wigner molecules formed in quantum dots

, 2003
Restoration of broken circular symmetry is used to explore the characteristics of the ground states and the excitation spectra of rotating Wigner molecules (RWM's) formed in two-dimensional parabolic N-electron quantum dots.
B. Reusch, B. Szafran, C. Yannouleas, C. Yannouleas, C. Yannouleas, C. Yannouleas, C. Yannouleas, C. Yannouleas, C. Yannouleas, Constantine Yannouleas, E.H. Lieb, J. Kainz, J.K. Jain, J.K. Jain, P.A. Maksym, P.A. Sundqvist, S.M. Reimann, S.R.E. Yang, Uzi Landman   +18 more
core   +2 more sources

Effects of ethanol on non‐invasively recorded cerebellar, cerebral, and postural responses to axial perturbation: A case study

Physiological Reports, Volume 14, Issue 9, May 2026.
Abstract We report for the first time non‐invasively recorded ethanol (EtOH) induced changes in the spontaneous and evoked activity of the human cerebellum. We recorded electroencephalography (EEG), electro‐cerebellography (ECeG), lower limb electro‐myography (EMG), and posturography in a 64 year old adult male before and after oral ingestion of EtOH ...
Neil P. M. Todd, Sendhil Govender, James G. Colebatch   +2 more
wiley   +1 more source

Estimation of dielectric constant for various standard materials using microstrip ring resonator [PDF]

, 2017
Microstrip ring resonator (MRR) is known for dielectric constant determination and many studies used Teflon as a standard sample. However, there are many other materials available which able to perform better or equivalence as the Teflon in calibrating ...
Abbas, Zulkifly, Esa, Fahmiruddin, Low, Pek Jin, You, Kok Yeow   +3 more
core   +1 more source

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

Advanced Functional Materials, Volume 36, Issue 29, 9 April 2026.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato, Soh Kushida, Nafees Umar Draz, Dan Kyotani, Emanuel Smarsly, Kyota Yoshinaga, Wenhao He, Uwe H. F. Bunz, Kazuhiro Marumoto, Tatsuya Mori, Yohei Yamamoto   +10 more
wiley   +1 more source