Results 91 to 100 of about 781,590 (289)

Aggregating distributed energy resources for grid flexibility services: A distributed game theoretic approach

International Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract We propose a hierarchical energy management scheme for aggregating Distributed Energy Resources (DERs) for grid flexibility services. To prevent a direct participation of numerous prosumers in the wholesale electricity market, aggregators, as self‐interest agents in our scheme, incentivize prosumers to provide flexibility. We firstly model the
Xiupeng Chen, Mehran Shakarami, Jacquelien M. A. Scherpen, Nima Monshizadeh   +3 more
wiley   +1 more source

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

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

Mechanically Reprogrammed Coaxial Fibers for Multiphysics Transduction and Human‐Machine Interfaces

Advanced Science, EarlyView.
A continuously wet‐spun coaxial fiber is developed to combine stretchable conductivity, resistive sensing, and self‐powered triboelectric sensing in a single architecture. A mechanically reprogrammed dual‐network sheath stabilizes large deformation and improves signal reliability. These fibers can be woven into textile interfaces for multichannel touch
Xinyi Cao, Chao Ye, Shengjie Ling, Ming Li, Zhao Sha, Chun‐Hui Wang, Shuhua Peng   +6 more
wiley   +1 more source

Domain decomposition PCG methods for serial and parallel processing

Computer Assisted Methods in Engineering and Science, 2023
In this paper two domain decomposition formulations are presented in conjunction with the preconditioned conjugate gradient method (PCG) for the solution of large-scale problems in solid and structural mechanics.
M. Papadrakakis, S. Bitzarakis
doaj  

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  

Preconditioned conjugate gradient methods for the incompressible Navier Stokes equations [PDF]

, 1992
PCG methods for N-S equations 2 Abstract. A robust technique for solving primitive-variable formulations of the incompressible Navier-Stokes equations is to use Newton iteration for the fully-implicit nonlinear equations.
E. F. D’azevedo, W.‐P. Tang, P. A. Forsyth, W. -p. Tang, P. Chin, E. F. D'Azevedo   +5 more
core   +1 more source

Spatiotemporally Controlled Sequential Chemo‐Immunotherapy Activates Pyroptosis for Robust Anti‐Tumor Immunotherapy

Advanced Science, EarlyView.
A glutathione and ultrasound dual‐responsive cerasome achieves sequential co‐delivery of gemcitabine and BMS1166 in tumors. Chemotherapy priming followed by on‐demand PD‐L1 blockade synergistically amplifies anti‐tumor immunity, inhibiting primary tumor growth, distant metastasis and inducing durable immune memory.
Suhui Sun, Ruiqi Wu, Qingshuang Tang, Yunli Xu, Wanrui Shi, Mengxin Wang, Haonan Wang, Yan Luo, Cheng Ma, Xiaolong Liang   +9 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

Nonsymmetric Preconditioning for Conjugate Gradient and Steepest Descent Methods 1

Procedia Computer Science, 2015
AbstractWe analyze a possibility of turning off post-smoothing (relaxation) in geometric multigrid when used as a preconditioner in preconditioned conjugate gradient (PCG) linear and eigenvalue solvers for the 3D Laplacian. The geometric Semicoarsening Multigrid (SMG) method is provided by the hypre parallel software package.
Henricus Bouwmeester, Andrew Dougherty, Andrew V. Knyazev   +2 more
openaire   +1 more source