Results 71 to 80 of about 1,501,853 (289)

Acoustic Rayleigh Wave Turbulence in Soft Viscoelastic Matter

Advanced Science, EarlyView.
Discrete acoustic Rayleigh wave turbulence (DARWT) is observed on the free surface of viscoelastic materials under monochromatic excitation. Governed by bulk shear rigidity supporting inertial modes against surface tension, the nonlinear Rayleigh waves exhibit distinct power‐law scaling and turbulence features in their Kolmogorov–Zakharov spectra. This
Mikheil Kharbedia, Horacio López‐Menéndez, Basilio Javier García, Manuel G. Velarde, Francisco Monroy   +4 more
wiley   +1 more source

New restricted and extended soft set operations: restricted gamma and extended gamma operations [PDF]

Big Data and Computing Visions
Soft set theory has been well-known as an innovative approach to managing uncertainty-related problems and modelling uncertainty since Molodtsov introduced it in 1999. It has been applied in a variety of contexts, both theoretical and practical. The core
Aslıhan Sezgin, Fitnat Aybek
doaj   +1 more source

Effective approximation to complex algebraic numbers by quadratic numbers [PDF]

Can. Math. Bull. 68 (2025) 262-269
We establish an effective improvement on the Liouville inequality for approximation to complex non-real algebraic numbers by quadratic complex algebraic numbers.
arxiv   +1 more source

Finite dimensional Hopf actions on algebraic quantizations [PDF]

Algebra Number Theory 10 (2016) 2287-2310, 2016
Let k be an algebraically closed field of characteristic zero. In joint work with J. Cuadra [arxiv.org/abs/1409.1644, arxiv.org/abs/1509.01165], we showed that a semisimple Hopf action on a Weyl algebra over a polynomial algebra k[z_1,...,z_s] factors through a group action, and this in fact holds for any finite dimensional Hopf action if s=0.
arxiv   +1 more source

Edge of Chaos Theory Unveils the First and Simplest Ever Reported Hodgkin–Huxley Neuristor

Advanced Electronic Materials, EarlyView.
This manuscript presents the first and simplest ever‐reported electrical cell, which leverages one memristor on Edge of Chaos to reproduce the three‐bifurcation cascade, marking the entire life cycle from birth to extinction via All‐to‐None effect of an electrical spike, also referred to as Action Potential, across axon membranes under monotonic ...
Alon Ascoli, Ahmet Samil Demirkol, Ioannis Messaris, Vasilis Ntinas, Dimitris Prousalis, Stefan Slesazeck, Thomas Mikolajick, Fernando Corinto, Michele Bonnin, Marco Gilli, Pier Paolo Civalleri, Ronald Tetzlaff, Leon Chua   +12 more
wiley   +1 more source

Dopant‐free passivating contacts for crystalline silicon solar cells: Progress and prospects

EcoMat, Volume 5, Issue 2, February 2023., 2023
This article provides an overview of the mechanism and materials of dopant‐free passivating contacts for crystalline silicon solar cells, and focuses on the recent advances in contact configuration and interface engineering for efficiency and stability enhancement.
Yanhao Wang, Shan‐Ting Zhang, Le Li, Xinbo Yang, Linfeng Lu, Dongdong Li   +5 more
wiley   +1 more source

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

Advanced Energy and Sustainability Research, EarlyView.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said, Aggrey Mwesigye, Lingala Syam Sundar, Arun Kumar Tiwari, Kalidasan Balasubramanian, Hafiz Muhammad Ali, Evangelos Bellos, Chaerin Gim, Mohammad Shamsuddin Ahmed, Jang‐Yeon Hwang   +9 more
wiley   +1 more source

Smith-Knight/Rayleigh-Knight Essay [PDF]

, 2009
On a complex variety X, two different approaches to K-theory are available: the algebraic K-theory of the variety, and the topological K-theory of the underlying topological space.
Zibrowius, Marcus
core  

On the homotopy invariance of configuration spaces

, 2004
For a closed PL manifold M, we consider the configuration space F(M,k) of ordered k-tuples of distinct points in M. We show that a suitable iterated suspension of F(M,k) is a homotopy invariant of M.
Hirschhorn, John R Klein, Klein, Mokhtar Aouina, Wall   +4 more
core   +1 more source

Approximation of complex algebraic numbers by algebraic numbers of bounded degree [PDF]

Ann. Scuola Norm. Sup. Pisa, Cl. Scienze (5) 8 (2009), 1-36, 2007
We investigate how well complex algebraic numbers can be approximated by algebraic numbers of degree at most n. We also investigate how well complex algebraic numbers can be approximated by algebraic integers of degree at most n+1. It follows from our investigations that for every positive integer n there are complex algebraic numbers of degree larger ...
arxiv