Results 91 to 100 of about 6,984 (280)

P A AN EFFICIENT QUARTER-SWEEP MODIFIED SOR ITERATIVE METHOD FOR SOLVING HELMHOLTZ EQUATION

, 2012
: The aim of this article is to describe the formulation of quartersweep Modified Successive Over-relaxation (QSMSOR) method using the finite difference approach for solving two-dimensional Helmholtz equation. The concept of QSMSOR method is inspired via
Z A Majid, Md Akhir, Zanariah Abdul Majid, M K Md Akhir, M Suleiman, Mohd Kamalrulzaman, §, J Sulaiman, Mohamed Othman, M Othman, Mohamed Suleiman, Jumat Sulaiman   +11 more
core  

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

Advanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke, Yvonne Tomm, Xinyun Liu, Galina Gurieva, Daniel M. Többens, Pardis Adams, Michel Calame, Ryan W. Crisp, Jessica Boland, Seán Kavanagh, Susan Schorr, Mirjana Dimitrievska   +11 more
wiley   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Effect of an uniform magnetic field on unsteady natural convection of nanofluid

Journal of Taibah University for Science, 2019
In this work, the problem of the unsteady natural convection in an ${\rm Al}_2{\rm O}_3 $-water filled nanofluids influenced by an uniform magnetic field is analysed numerically.
Nagehan Alsoy-Akgün
doaj   +1 more source

A regularization method for a Cauchy problem of the Helmholtz equation

, 2010
We investigate a Cauchy problem for the Helmholtz equation. A modified boundary method is used for solving this ill-posed problem. Some Hölder-type error estimates are obtained.
Xiong, Xiang-Tuan
core   +1 more source

The Importance of Metal‐Organic Framework Linker Atoms for CO2 Reduction: A DFT Study

Advanced Science, EarlyView.
Using DFT, we examine the role of linker atoms in CO2 reduction on copper‐based metal organic frameworks (Cu MOFs). Our calculations reveal that linker atoms may serve as both CO2 and H‐shuttling sites and suggest linker electrostatics as a descriptor for linker activity. ABSTRACT Although the metal within the secondary building unit of a metal‐organic
Ugochukwu Nwosu, Samira Siahrostami
wiley   +1 more source

Solving an inverse Cauchy Problem for modified Helmholtz Equations depending on a polynomial expansion approximation

Academic Science Journal
In this study, a heat conduction in fin-related inverse problem for the modified Helmholtz equation is taken into consideration. The purpose of this study is to estimate the temperature on an under-specified boundary (a part of the outer border of a ...
shaimaa aamer, Fatima M. Aboud
doaj   +1 more source

A convergent Born series for solving the inhomogeneous Helmholtz equation in arbitrarily large media [PDF]

, 2016
We present a fast method for numerically solving the inhomogeneous Helmholtz equation. Our iterative method is based on the Born series, which we modified to achieve convergence for scattering media of arbitrary size and scattering strength.
Vellekoop, Ivo Micha, Osnabrugge, Gerwin, Leedumrongwatthanakun, Saroch, Vellekoop, Ivo M.   +3 more
core   +1 more source

Enhancing Maturation of Human Neuromuscular Organoids via Electrical Stimulation

Advanced Science, EarlyView.
A framework for on‐demand and non‐invasive exposure of human neuromuscular organoids (NMOs) to electrical stimuli is established to promote their maturation. The robustness and effectiveness of different stimulation regimes are evaluated via thorough characterization of organoid tissue structure and contraction capacity. Chronic electrical stimulation,
Chrysanthi‐Maria Moysidou, Inês Afonso Martins, Ismail Amr El‐Shimy, Iacopo Bicci, Donatella Cea, Christina Bukas, Isra Mekki, Mara‐Camelia Rusu, Aylin Nebol, Ines Lahmann, Marie Piraud, Enrico Klotzsch, Mina Gouti   +12 more
wiley   +1 more source

Iterative schemes for high order compact discretizations to the exterior Helmholtz equation [PDF]

, 2012
We consider high order finite difference approximations to the Helmholtz equation in an exterior domain. We include a simplified absorbing boundary condition to approximate the Sommerfeld radiation condition.
Turkel, Eli, Eli Turkel, Erlangga, Yogi, Yogi Erlangga   +3 more
core   +1 more source