Results 91 to 100 of about 1,731 (272)
Neural incomplete factorization: learning preconditioners for the conjugate gradient method [PDF]
, 2023 Paul Häusner +2 more
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Permafrost and Periglacial Processes, EarlyView.ABSTRACT Across circumpolar permafrost regions, climate change is destabilizing ice‐rich hillslopes, increasing the frequency and magnitude of thaw‐driven mass wasting. This paper reviews recent studies (2013–2024) on thaw‐driven mass wasting, focusing on the processes, morphology and trajectories of geomorphic change and their implications for ...
J. M. Young +5 more
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Modelling and Simulation in Engineering, 2008 The coupling of groundwater movement and reactive transport during groundwater recharge with wastewater leads to a complicated mathematical model, involving terms to describe convection-dispersion, adsorption/desorption and/or biodegradation, and so ...
Shutang Zhu, Gang Zhao, Yuanle Ma
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Quarterly Journal of the Royal Meteorological Society, EarlyView.October 2019 was characterized by three main multiday wet spells in Bafoussam and Dschang. Our results indicated that wet spells were influenced by a vortex pair near the Gulf of Guinea, a strong Sahara Heat Low located anomalously far east and north, a northward shift of the intertropical discontinuity, an enhancement of the inland penetration of the ...
Derbetini A. Vondou +3 more
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Journal of Applied Mathematics, 2013 The motions of the airflow induced by the movement of an automatic guided vehicle (AGV) in a cleanroom are numerically studied by large-scale simulation.
Qing-He Yao, Qing-Yong Zhu
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Two implementations of the preconditioned conjugate gradient method on heterogeneous computing grids [PDF]
, 2010 T.P. Collignon, Martin B. van Gijzen
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A pilot variational coupled reanalysis based on the CESAM climate model
Quarterly Journal of the Royal Meteorological Society, EarlyView.Variational data assimilation of in‐situ and satellite ocean data and reanalysis atmospheric data into an intermediate complexity Earth system model is possible by adjusting the surface fluxes and internal model parameters. This pilot application requires nearly complete information on the atmospheric state for synchronization.
Armin Köhl +6 more
wiley +1 more source
Cartesian MaxGIRF: Model-based EPI reconstruction incorporating gradient nonlinearity and concomitant field effects. [PDF]
Magn Reson MedAbstract Purpose Lower field strength scanners with large bore size or complex geometries, and scanners with stronger gradient systems experience increased gradient nonlinearity and concomitant fields, each of which causes distortions in EPI. Current correction approaches based on image‐domain interpolation introduce undesirable spatial blurring.
Lee NG, Cui SX, Nayak KS.
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Comparison of the deflated preconditioned conjugate gradient method and algebraic multigrid for composite materials [PDF]
, 2011 T.B. Jönsthövel +4 more
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On computingINV block preconditionings for the conjugate gradient method
BIT, 1986 The INV(k) and MINV(k) block preconditionings for the conjugate gradient method require generation of selected elements of the inverses of symmetric matrices of bandwidth \(2k+1\). Generalizing the previously described \(k=1\) (tridiagonal) case to \(k=2\), explicit expressions for the inverse elements of a symmetric pentadiagonal matrix in terms of ...
Concus, P., Meurant, G.
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