Results 51 to 60 of about 9,665 (208)

A Hybrid RF Coil for Whole‐Brain Imaging in Non‐Human Primates at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐high field MRI (≥ 7 T) offers unprecedented potential for mapping non‐human primate (NHP) brain function. However, complex electromagnetic systems are required to meet the challenges of UHF imaging and the mechanical demands of awake NHP studies.
Elias Djaballah, Éric Giacomini, Paul‐François Gapais, Michel Luong, Alexis Amadon, Qi Zhu   +5 more
wiley   +1 more source

Optical and RF Metrology for 5G

, 2018
Specification standards will soon be available for 5G mobile RF communications. What optical and electrical metrology is needed or available to support the development of the supporting optical communication systems?
Bieler, Mark, Fatadin, Irshaad, Hudlicka, Martin, Humphreys, David A., Struszewski, Paul   +4 more
core   +1 more source

Signal and Contrast Optimization With Predicted Excitations (SCOPE) for Accelerating Large FOV Body Imaging at UHF

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Large FOV turbo‐spin‐echo (TSE) imaging at ultra‐high field (UHF) remains challenging due to B1+ inhomogeneity and peak specific absorption rate (pSAR) limitations. This work presents a new time‐interleaved acquisition of modes (TIAMO) framework called SCOPE (Signal and Contrast Optimization with Predicted Excitations), which overcomes
Tobey D. Haluptzok, Simon Schmidt, Gregory J. Metzger   +2 more
wiley   +1 more source

Pulsed homodyne Gaussian quantum tomography with low detection efficiency [PDF]

, 2014
Pulsed homodyne quantum tomography usually requires a high detection efficiency limiting its applicability in quantum optics. Here, it is shown that the presence of low detection efficiency ($
Benatti, Fabio, Cilento, Federico, Esposito, Martina, Fausti, Daniele, Floreanini, Roberto, Novelli, Fabio, Olivares, Stefano, Parmigiani, Fulvio, Pividori, Marco, Randi, Francesco, Titimbo, Kelvin   +10 more
core   +1 more source

MR Spectroscopy Without Water Suppression Using the Gradient Impulse Response Function

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Non‐water‐suppressed proton spectroscopy, 1H‐MRS, is desirable, as retaining the strong water resonance can facilitate automated online data corrections, internal concentration referencing, and monitoring of line narrowing effects in functional MRS.
James B. Bacon, Peter Jezzard, William T. Clarke   +2 more
wiley   +1 more source

AN ENHANCED CURRENT-CONVEYOR BASED INSTRUMENTATION AMPLIFIER WITH HIGH CMRR

Electrica, 2019
 In this work, a current-mode instrumentation amplifier with common-mode current cancellation is realized using enhanced CCII topology. Detailed CMRR analysis is performed and parameters for maximizing the CMRR are defined.
Uğur ÇİNİ
doaj   +2 more sources

±0.3V Bulk-Driven Fully Differential Buffer with High Figures of Merit

Journal of Low Power Electronics and Applications, 2022
A high performance bulk-driven rail-to-rail fully differential buffer operating from ±0.3V supplies in 180 nm CMOS technology is reported. It has a differential–difference input stage and common mode feedback circuits implemented with no-tail, high CMRR ...
Manaswini Gangineni, Jaime Ramirez-Angulo, Héctor Vázquez-Leal, Jesús Huerta-Chua, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal   +5 more
doaj   +1 more source

Postprandial Glucagon Action in the Human Brain

Diabetes, Obesity and Metabolism, EarlyView.
ABSTRACT Aims Elevated fasting glucagon is linked to hyperglycemia, but postprandial glucagon effects are less understood. Recent evidence suggests metabolic benefits of rising glucagon after oral glucose intake, potentially impacting brain‐mediated whole‐body metabolism.
Robert Wagner, Stephanie Kullmann, Julia Hummel, Katsiaryna Prystupa, Elena Hosenfeld, Ralf Veit, Andreas L. Birkenfeld, Hans‐Ulrich Häring, Hubert Preissl, Andreas Fritsche, Andreas Peter, Martin Heni   +11 more
wiley   +1 more source

Qubit compatible superconducting interconnects

, 2017
We present a fabrication process for fully superconducting interconnects compatible with superconducting qubit technology. These interconnects allow for the 3D integration of quantum circuits without introducing lossy amorphous dielectrics.
Arya, K., Barends, R., Burkett, B., Chen, Yu, Chen, Zijun, Chiaro, B., Dunsworth, A., Fowler, A., Foxen, B., Gidney, C., Giustina, M., Graff, R., Huang, T., Jeffrey, E., Kelly, J., Klimov, P., Lucero, E., Martinis, John M., Megrant, A., Mutus, J. Y., Neeley, M., Neill, C., Quintana, C., Roushan, P., Sank, D., Vainsencher, A., Wenner, J., White, T. C., Yang, Yan, Yu, Anthony   +29 more
core   +1 more source

High CMRR GaAs single-input to differential convertor

, 1996
In this paper a new topology for Single Input to Differential convertors is presented. Among the capabilities of convertors realised with this topology, 6 dB of extra conversion gain respect to a single differential cell and suppression of the common mode can be mentioned.
LARCIPRETE N., LORIGA F., MARIETTI, Piero, TRIFILETTI, Alessandro   +3 more
openaire   +3 more sources