Results 61 to 70 of about 5,552,824 (295)
Phase manipulation in reflective phase gradient photonic crystals
Optics ExpressPhase gradient photonic crystals (PGPCs) are proposed as promising candidates for phase manipulation and can enable arbitrary electromagnetic functions, such as deflection and focusing. In stark contrast to the proposed metasurfaces, the phase variation in PGPCs arises from simple edge-configuration rather than structure resonance.
Xiao Zhang +5 more
openaire +2 more sources
A GBAS Testbed to Support New Monitoring Algorithms Development for CAT III Precision Approach [PDF]
, 2010 The development of new monitoring algorithms needs to have access to a platform that offers flexibility, operational evaluation facilities, test and validation capacities.
Wilken, Volker +7 more
core
, 2012 LtdAn experimental study of three-phase flow in a vertical pipe with 50 mm diameter has been carried out. The experiments were conducted under the input superficial phase velocity: water from 0 to 0.885 m/s, oil from 0 to 0.90 m/s and gas from 0 to 0.85 ...
Xu JY(许晶禹) +4 more
core +1 more source
Reflecting Phase-Gradient Metasurface for Radar Cross Section Reduction
, 2023 In this work, we present a general approach to design reflecting phase-gradient metasurfaces (PGMs) for radar cross-section (RCS) reduction using generalized Snell’s laws.
Afzal, MU +3 more
core +1 more source
IET Computer Vision, 2015 Gradient phase, which is treated as an illumination insensitive measure, is an important feature for visual detection and recognition applications, especially under illumination variations. However, fewer statistical characteristics of the gradient phase
Ching‐Yao Su, Jar‐Ferr Yang
doaj +1 more source
Influence of ultra-low interfacial tension system on nonlinear seepage law of low permeability core
地质科技通报, 2021 The starting pressure gradient in low permeability reservoir leads to the nonlinear characteristics of fluid flow, which makes the development mode of low permeability reservoir different from that of medium and high permeability reservoir.In order to ...
Yujia Zeng +4 more
doaj +1 more source
Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
Wavefront sensing with a gradient phase filter
Optics Communications20 pages, 8 ...
Hénault, François +4 more
openaire +3 more sources
RELAX-Based Autofocus Algorithm for High-Resolution Strip-Map SAR [PDF]
, 2009 This paper addresses the non-iterative quality phase gradient autofocus (QPGA) technique which was originally proposed to remove one-dimensional phase errors in spotlightmode synthetic aperture radar (SAR) imagery.
Galetti, Michele +4 more
core
Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry
FEBS Letters, EarlyView.EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri +5 more
wiley +1 more source