Results 101 to 110 of about 5,099,079 (342)

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

FEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour, Christine Volmert, Valentina Piano   +2 more
wiley   +1 more source

Differential BroadBand (1–16 GHz) MMIC GaAs mHEMT Low-Noise Amplifier for Radio Astronomy Applications and Sensing

Sensors
A broadband differential-MMIC low-noise amplifier (DLNA) using metamorphic high-electron-mobility transistors of 70 nm in Gallium Arsenide (70 nm GaAs mHEMT technology) is presented.
Jose Luis Jimenez-Martin, Vicente Gonzalez-Posadas, Angel Parra-Cerrada, David Espinosa-Adams, Daniel Segovia-Vargas, Wilmar Hernandez   +5 more
doaj   +1 more source

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

Modeling and measurement of the noise figure of a cascaded non-degenerate phase-sensitive parametric amplifier.

Optics Express, 2010
Semi-classical noise characteristics are derived for the cascade of a non-degenerate phase-insensitive (PI) and a phase-sensitive (PS) fiber optical parametric amplifier (FOPA).
Z. Tong, A. Bogris, C. Lundström, C. McKinstrie, M. Vasilyev, M. Karlsson, P. Andrekson   +6 more
semanticscholar   +1 more source

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz, Carl D. Langefeld, Mary E. Comeau, Miranda C. Marion, Tyler P. Behymer, Lee A. Gilkerson, Padmini Sekar, Weihong Yuan, Vivek Khandwala, Brady J. Williamson, Thomas Maloney, Achala Vagal, Pierce Boyne, Kari Dunning, Matthew L. Flaherty, Steven J. Kittner, Prachi Mehndiratta, Gunjan Y. Parikh, Michael L. James, David Roh, Fernando D. Testai, Farhaan S. Vahidy, James Thornton, Ranjit Bagga, Daniel Woo, Stacie L. Demel   +25 more
wiley   +1 more source

A High-Dynamic-Range BroadBand MMIC GaN Mixer for Microwave Conversion TX/RX

IEEE Access
This paper presents a wideband, high-performance monolithic microwave integrated circuit (MMIC) mixer fabricated in a 150-nm Gallium Nitride (GaN) technology from the UMS Foundry.
Jose Luis Jimenez-Martin, Vicente Gonzalez-Posadas, David Espinosa-Adams, A. Prieto-Poyatos, E. Oreja-Gigorro, Javier Montero-de-Paz, Juan Jose Sanchez-Martinez, Wilmar Hernandez   +7 more
doaj   +1 more source

Performance of DPSK Signals with Quadratic Phase Noise

, 2004
Nonlinear phase noise induced by the interaction of fiber Kerr effect and amplifier noises is a quadratic function of the electric field. When the dependence between the additive Gaussian noise and the quadratic phase noise is taking into account, the ...
Ho, Keang-Po
core   +2 more sources

Full characterization of the signal and idler noise figure spectra in single-pumped fiber optical parametric amplifiers.

Optics Express, 2010
For the first time, four different noise sources, which are amplified quantum noise, Raman phonon seeded excess noise, pump transferred noise (PTN), and pump residual noise, are considered simultaneously to model the wavelength-dependent noise figure in ...
Z. Tong, A. Bogris, M. Karlsson, P. Andrekson   +3 more
semanticscholar   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri, Isabella Dallasta, Ciaran Stone, Sophia Girgenti, Neda Gould, Rafael H. Llinas, Jonathan Z. Simon, Elisabeth Breese Marsh   +7 more
wiley   +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