Results 101 to 110 of about 5,336 (304)
A note on T. Chan’s preconditioner
Linear Algebra and its Applications, 2004 This paper shows that T. Chan's preconditioner matrix [SIAM J. Sci. Stat. Comput. 9, No. 4, 766--771 (1988; Zbl 0646.65042)] is stable for some special class of matrices i.e. matrices that are *-congruent to a stable diagonal matrix. By using this result, the authors prove the invertibility of some preconditioners proposed in the numerical solution of ...
Cai, Ming-Chao, Jin, Xiao-Qing
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Preconditioners for indefinite problems
, 1996 Two different preconditioners for symmetric saddle point problems with a penalty term are analyzed. The preconditioners are used in combination with Krylov space methods.
Klawonn, A.
core
Advanced Science, EarlyView.This study establishes [68Ga]Ga‐DOTA‐AP9 as a first‐in‐human CD147‐targeted PET tracer with favorable safety and specific tumor uptake. Tracer accumulation correlates with CD147 expression in patients, enabling noninvasive quantification of CD147‐positive malignancies.
Xiaokun Ma +10 more
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Advanced Science, EarlyView.Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang +6 more
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Generative modeling of Sparse Approximate Inverse Preconditioners [PDF]
We present a new deep learning paradigm for the generation of sparse approximate inverse (SPAI) preconditioners for matrix systems arising from the mesh-based discretization of elliptic differential operators.
Wang, H., Jimack, P., Li, M.
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ESAIM: Proceedings and Surveys, 2018 Sweeping-type algorithms have recently gained a lot of interest for the solution of highfrequency time-harmonic wave problems, in particular when used in combination with perfectly matched layers.
Vion Alexandre, Geuzaine Christophe
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Endogenous Engineering Reprograms Extracellular Vesicles for Enhanced Therapeutic Function
Advanced Science, EarlyView.This review explains how Extracellular vesicles‐producing cells can be endogenously engineered to load therapeutic proteins and nucleic acids. We summarize physiological and genetic strategies that harness native sorting pathways for selective cargo loading.
Jinghui Wang +10 more
wiley +1 more source
Preconditioners for Generalized Saddle-Point Problems
, 2004 We examine block-diagonal preconditioners and e#cient variants of indefinite preconditioners for block two-by-two generalized saddle-point problems.
Eric de Sturler, Chris Siefert
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Oléagineux, Corps gras, Lipides, 2011 Stroke is the third leading cause of death, due to its high incidence, the severity of the insult, and lack of treatment options. The only therapeutic is restoration of cerebral blood flow achieved by recombinant tissue plasminogen activator treatment ...
Blondeau Nicolas
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Block two-stage preconditioners
, 2001 Linear systems of the form Ax = b, where the matrix A is symmetric and positive definite, often arise from the discretization of elliptic partial differential equations.
Migallón, V +5 more
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