Results 11 to 20 of about 371,899 (263)
Fire propagation visualization in real time
Journal of Computer Science and Technology, 2018 Our motivation comes from the need of a tailored computational tool for simulation and prediction of forest fire propagation, to be used by firefighters in Patagonia, Argentina.
Monica Denham +2 more
doaj +4 more sources
Water Resources Research, 2018 It is difficult to predict and track the propagation of a hydrological drought because it is hard to determine its propagation speed. We propose a useful framework for calculating the hydrological drought instantaneous propagation speed which includes ...
Jiefeng Wu +4 more
doaj +2 more sources
Ecological Indicators, 2023 To study the propagation law of meteorological droughts to hydrological droughts under variable time scales, and to reveal the synchronisation gap and lag time of hydrological droughts compared to meteorological droughts, and the lag degree of ...
Fang Wan +4 more
doaj +3 more sources
From meteorological to agricultural drought: Propagation time and probabilistic linkages
Journal of Hydrology: Regional Studies, 2023 Study region: Yangtze River Basin, China Study focus: As agricultural drought originates from meteorological drought, exploring the propagation from meteorological to agricultural drought is an important step in providing early warning of agricultural ...
Zhengguang Xu +4 more
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Propagation time for zero forcing on a graph
Discrete Applied Mathematics, 2012 Poster Presentation Presented at USTARS ...
Leslie Hogben, Michael Young
exaly +6 more sources
IEEE Access, 2021 Switching in power semiconductors with emerging materials such as silicon carbide (SiC) leads to undesired overvoltages and oscillations that limit switching frequency, largely due to impedance in the current commutation loop.
A. Llamazares +2 more
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Connected zero forcing sets and connected propagation time of graphs [PDF]
Transactions on Combinatorics, 2020 The zero forcing number $Z(G)$ of a graph $G$ is the minimum cardinality of a set $S$ with colored (black) vertices which forces the set $V(G)$ to be colored (black) after some times.
Maryam Khosravi +2 more
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Demonstration of propagation-invariant 3D space-time wave packets [PDF]
EPJ Web of Conferences, 2022 We present the first demonstration of propagation-invariant space-time (ST) wave packets localized in all dimensions - 2D space and 1D time. By introducing orbital-angular-momentum into the wave packets, we produce propagation-invariant ST-OAM wave ...
Yessenov Murat +6 more
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Journal of Water and Climate Change, 2023 This study investigates drought propagation from meteorological to hydrological and streamflow required to recover from drought in four sub-basins: Genale, Tekeze, Awash, and Baro basins of Ethiopia.
Tegegn Kassa Beyene +3 more
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Modeling HF Radio Wave Propagation in 3D Non-Uniform Ionosphere With Smooth Perturbation Method
IEEE Open Journal of Antennas and Propagation, 2020 An asymptotic solution of ray equations is used for numerical simulation of the electromagnetic wave propagation in a smoothly non-uniform Earth-ionosphere duct.
Alexei V. Popov
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