Results 91 to 100 of about 669,562 (292)

Trade-off between preamplifier noise figure and decoupling in MRI detectors. [PDF]

Magn Reson Med, 2023
Wang W, Zhurbenko V, Sánchez-Heredia JD, Ardenkjaer-Larsen JH.   +3 more
europepmc   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Noise-reducing AND-NOT function. [PDF]

The graphs show an example of a neuron response to analog inputs that reduces moderate levels of additive noise in binary inputs. A. A sigmoid function f(x) = (1/2)sin(π(x—1/2)) + 1/2. B. Graph of a function that has the noise-reducing properties 1 and 2.
Lane Yoder (367027)
core   +1 more source

Ultrahigh dynamic range and low noise figure programmable integrated microwave photonic filter. [PDF]

Nat Commun, 2022
Daulay O, Liu G, Ye K, Botter R, Klaver Y, Tan Q, Yu H, Hoekman M, Klein E, Roeloffzen C, Liu Y, Marpaung D.   +11 more
europepmc   +1 more source

Polynomial Modeling of Noise Figure in Erbium-Doped Fiber Amplifiers

Fibers
Erbium-Doped Fiber Amplifiers (EDFAs) are fundamental to optical communication networks, providing signal amplification while introducing noise that affects system performance.
Rocco D’Ingillo, Alberto Castronovo, Stefano Straullu, Vittorio Curri   +3 more
doaj   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

FEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks, Garth L. Maker, Emily C. Davies, Berin A. Boughton, Samantha Lodge   +4 more
wiley   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

An investigation into inconsistencies between theoretical predictions and microphone array measurements of railway rolling noise [PDF]

, 2007
Theoretical models, such as TWINS, and microphone array measurements have been widely used to gain better understanding of rolling noise. However, the array measurements are often inconsistent with the TWINS predictions and give less prominence to the ...
Kitagawa, Toshiki
core  

Noise Figure Characterization of a Subharmonic Graphene FET Mixer [PDF]

, 2012
We report on the first room temperature noise figure measurement of a graphene FET subharmonic resistive mixer in the interval fRF = 2-5 GHz. Due to an 8 nm thin Al2O3 gate dielectric it can operate with a conversion loss in the range 20-22 dB at only 0 ...
Andersson, Michael, Michael Andersson, Omid Habibpour, Vukusic, Josip,, ANDERSSON, MICHAEL,, Habibpour, Omid, Stake, Jan, Stake, Jan,, Josip Vukusic, Jan Stake, Vukusic, Josip, Habibpour, Omid,   +11 more
core   +1 more source

MONOLITHIC INTEGRATED CIRCUIT OF GаN LOW-NOISE AMPLIFIER FOR 57-64 GHz BANDWIDTH

Российский технологический журнал, 2016
The article describes the development of a low-noise amplifier for the 57-64 GHz band based on a wide-gap semiconductor - gallium nitride. We analyze existing commercial developments in the area of low-noise amplifiers for the 60 GHz band, which are ...
D. V. Krapukhin, P. P. Maltsev
doaj   +1 more source