Results 21 to 30 of about 746,699 (258)

Miniaturized spoof SPPs filter based on multiple resonators or 5G applications

open access: yesScientific Reports, 2021
This paper presents a novel and compact band-pass filter based on spoof surface plasmon polaritons (SSPPs) concept for 5G applications. In the first place, an SSPPs unit cell including L-shaped grooves and its equivalent circuit model are introduced. The
Behnam Mazdouri   +2 more
doaj   +1 more source

Numerical analysis to determine fire suppression time for multiple water mist nozzles in a large fire test compartment

open access: yesNuclear Engineering and Technology, 2021
In this study, a numerical sensitivity analysis was performed to determine the fire suppression time for a large number of water mist nozzles in a large fire compartment. Fire simulations were performed using FDS (Fire dynamics simulator) 6.5.2 under the
Gaghyeon Ha, Weon Gyu Shin, Jaiho Lee
doaj   +1 more source

Cell Agglomeration Strategy for Cut Cells in eXtended Discontinuous Galerkin Methods [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering
ABSTRACTIn this work, a cell agglomeration strategy for the cut cells arising in the eXtended discontinuous Galerkin (XDG) method is presented. Cut cells are a fundamental aspect of unfitted mesh approaches, where complex geometries or interfaces separating subdomains are embedded into structured background grids to facilitate the mesh generation ...
Teoman Toprak   +2 more
openaire   +2 more sources

Automated in situ chromatin profiling efficiently resolves cell types and gene regulatory programs

open access: yesEpigenetics & Chromatin, 2018
Background Our understanding of eukaryotic gene regulation is limited by the complexity of protein–DNA interactions that comprise the chromatin landscape and by inefficient methods for characterizing these interactions. We recently introduced CUT&RUN, an
Derek H. Janssens   +7 more
doaj   +1 more source

A robust refined training sample reweighting space–time adaptive processing method for airborne radar in heterogeneous environment

open access: yesIET Radar, Sonar & Navigation, 2021
To improve the clutter suppression performance of airborne radar in heterogeneous environment, a robust refined training sample reweighting space–time adaptive processing (STAP) method called RRSRW is proposed here.
Hao Xiao   +3 more
doaj   +1 more source

A Cartesian cut cell method for incompressible viscous flow

open access: yesApplied Mathematical Modelling, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tucker, P. G., Pan, Z.
openaire   +1 more source

Numerical Investigation by Cut-Cell Approach for Turbulent Flow through an Expanded Wall Channel

open access: yesAxioms, 2023
The expanded wall channel backward-facing step (BFS) and axisymmetric diffuser plays an important role in the society of fluid dynamics. Using a cut-cell technique is an established new method to treat the inclined wall of an axisymmetric diffuser.
Ramzy M. Abumandour   +3 more
doaj   +1 more source

The Cut-Cell Method for the Conjugate Heat Transfer Topology Optimization of Turbulent Flows Using the “Think Discrete–Do Continuous” Adjoint

open access: yesEnergies
This paper presents a topology optimization (TopO) method for conjugate heat transfer (CHT), with turbulent flows. Topological changes are controlled by an artificial material distribution field (design variables), defined at the cells of a background ...
Nikolaos Galanos   +2 more
doaj   +1 more source

A Novel Clutter Covariance Matrix Estimation Method Based on Feature Subspace for Space-Based Early Warning Radar

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Accurate estimation of the clutter covariance matrix for the cell under test (CUT) is a committed step in the spatial-temporal adaptive processing (STAP) algorithm.
Tianfu Zhang   +5 more
doaj   +1 more source

TSUNAMI PROPAGATION SIMULATION BY CARTESIAN CUT CELL METHOD

open access: yesJournal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), 2011
Geometrical coastal line in big coastal cities is usually complex since there are many reclaimed lands, rivers and canals flowing into the sea. For such co mplex coastal area, fine mesh is required for an estimation of tsunami propagation and deformation by the numerical simulation with orthogonal grids, resulting in increase of the computational time ...
YASUDA, Tomohiro   +4 more
openaire   +2 more sources

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