Results 51 to 60 of about 11,588,553 (239)

Preconditioned Conjugate Gradient Methods for Boundary-Domain Integral Method

, 1993
The paper deals with the iterative solution of systems of linear equations arising in viscous flow computation by the boundary-domain integral method (BDIM) with the subdomain technique.
Skerget, P., Hribersek, M., Mang, Herbert A.   +2 more
core   +4 more sources

A Projection Strategy for Improving the Preconditioner in the LOBPCG

International Journal of Applied Mathematics and Computer Science
The computational methods for solving the generalized eigenvalue problems of real symmetric matrices are crucial in fields such as structural dynamics analysis.
Ma Tailai, Sun Shuli, Zheng Fangyi, Chen Pu   +3 more
doaj   +1 more source

Pseudoinverse preconditioners and iterative methods for large dense linear least-squares problems [PDF]

Bulletin of Computational Applied Mathematics, 2013
We address the issue of approximating the pseudoinverse of the coefficient matrix for dynamically building preconditioning strategies for the numerical solution of large dense linear least-squares problems.
Oskar Cahueñas, Luis M. Hernández-Ramos, Marcos Raydan   +2 more
doaj  

Mesoporous‐Shell Monolayer Plasmonic Architecture Enables Quantitative and Decision‐Guided SERS

Advanced Science, EarlyView.
Mesoporous‐shell‐regulated molecular transport combined with monolayer hotspot determinism transforms surface‐enhanced Raman spectroscopy (SERS) from ultrasensitive detection into quantitative and decision‐guided molecular sensing. ABSTRACT Quantitative surface‐enhanced Raman spectroscopy (SERS) has long been impeded by stochastic hotspot formation ...
Guangyao Huang, Ying Wang, Yue Fang, Jingyuan Shao, Sensen Hao, Mancun Zhao, Yuan Yao, Junping Wang, Wei Zhou, Hongzhi Wang   +9 more
wiley   +1 more source

A second-level diagonal preconditioner for single-step SNPBLUP

Genetics Selection Evolution, 2019
Background The preconditioned conjugate gradient (PCG) method is an iterative solver of linear equations systems commonly used in animal breeding. However, the PCG method has been shown to encounter convergence issues when applied to single-step single ...
Jeremie Vandenplas, Mario P. L. Calus, Herwin Eding, Cornelis Vuik   +3 more
doaj   +1 more source

Targeting β2‐Adrenergic Receptor Stability With Lycorine Reveals a Host‐Directed Pathway for Antiviral Defense Against Poxviruses

Advanced Science, EarlyView.
Chronic stress drives autophagy‐mediated β2‐AR degradation, impairing antiviral immunity and promoting poxvirus lethality. Lycorine directly stabilizes β2‐AR to restore host defense, suppress excessive inflammation and improve survival. ABSTRACT Psychological stress is a pervasive yet poorly understood modulator of infectious disease outcomes. Here, we
Xin Zhang, Shuqin Xu, Zixuan Zhang, Chenwen Wan, Xiaoqin Wang, Peihua Wang, Huini Yang, Tianxiao Huang, Yijia Yuan, Faiza Atique, Rui Yang, Yingli He, Zhijun Liu   +12 more
wiley   +1 more source

Monolayer MoS2 With Ultrahigh Piezoelectricity: From ALD Dose Control to Device Performance

Advanced Science, EarlyView.
This study demonstrates that controlling precursor dosages in atomic layer deposition (ALD) serves to regulate ultrathin oxide quality, which in turn determines sulfurization behavior and MoS2 monolayer continuity. The resulting continuous, low‐defect monolayers enable improved piezoelectric performance and support a flexible slippage sensor, linking ...
Yun Li, Ming Rui Joel Tan, Subhasis Das, Yafei Du, Wenjie Lai, Jiamin Amanda Ong, Yongli He, Yiming Zou, Anatoli Kurkin, Peiwen Huang, Jiajun Liu, Xingyu Chen, Alfred Iing Yoong Tok, Soo Jay Phee, Lioz Etgar, Shlomo Magdassi, Pooi See Lee   +16 more
wiley   +1 more source

On single-step HSS iterative method with circulant preconditioner for fractional diffusion equations

Advances in Difference Equations, 2019
By exploiting Toeplitz-like structure and non-Hermitian dense property of the discrete coefficient matrix, a new double-layer iterative method called SHSS-PCG method is employed to solve the linear systems originating from the implicit finite difference ...
Mu-Zheng Zhu, Guo-Feng Zhang, Ya-E Qi
doaj   +1 more source

Modular Metamaterials for Adaptable MRI Signal Control: Combining Dipole Array With a New Hexagon‐Based Artificial Dielectrics

Advanced Science, EarlyView.
A flexible, hexagonally packed artificial dielectric providing a wide range of effective permittivities (εr ≈ 30–1400) without lumped elements was developed for clinical and ultra‐high‐field MRI. Combined with modular passive‐dipole arrays, the system enables adaptable RF field shaping through electric‐ and magnetic‐dipole tuning.
Santosh Kumar Maurya, Ilan Goldberg, Rita Schmidt   +2 more
wiley   +1 more source

An M-step preconditioned conjugate gradient method for parallel computation [PDF]

, 1983
This paper describes a preconditioned conjugate gradient method that can be effectively implemented on both vector machines and parallel arrays to solve sparse symmetric and positive definite systems of linear equations.
Adams, L.
core