Results 101 to 110 of about 3,283,376 (328)

Helmholtz Resonance in Korean Bells

International Scholastic Journal of Science, 2017
Traditional Korean bells are installed above a shallow well with a gap between the bell and the ground, effectively creating a Helmholtz resonator. During installation, the size of the well and the gap is traditionally adjusted, through trial and error ...
Junghyun Kim
doaj  

Two reconstruction procedures for a 3D phaseless inverse scattering problem for the generalized Helmholtz equation [PDF]

, 2015
The 3D inverse scattering problem of the reconstruction of the unknown dielectric permittivity in the generalized Helmholtz equation is considered. Applications are in imaging of nanostructures and biological cells.
M. Klibanov, V. Romanov
semanticscholar   +1 more source

Integrative Approaches for DNA Sequence‐Controlled Functional Materials

Advanced Functional Materials, EarlyView.
DNA is emerging as a programmable building block for functional materials with applications in biomimicry, biochemical, and mechanical information processing. The integration of simulations, experiments, and machine learning is explored as a means to bridge DNA sequences with macroscopic material properties, highlighting current advances and providing ...
Aaron Gadzekpo, Ewa Anna Oprzeska‐Zingrebe, Mariana Kozlowska, Lennart Hilbert, Iliya D. Stoev   +4 more
wiley   +1 more source

Critical equation of state of randomly dilute Ising systems

, 2003
We determine the critical equation of state of three-dimensional randomly dilute Ising systems, i.e. of the random-exchange Ising universality class. We first consider the small-magnetization expansion of the Helmholtz free energy in the high-temperature
A. B. Harris, A. F. Andreev, A. J. Bray, A. J. McKane, A. Pelissetto, A. Pelissetto, A. Pelissetto, Andrea Pelissetto, B. D. Josephson, B. N. Shalaev, C. Bagnuls, C. Bagnuls, C. Bervillier, D. P. Belanger, D. P. Belanger, D. V. Pakhnin, D. V. Pakhnin, D. V. Pakhnin, Ettore Vicari, G. Grinstein, G. Grinstein, G. Álvarez, H. G. Ballesteros, I. O. Mayer, J. L. Cardy, J. M. Carmona, M. Campostrini, M. Campostrini, M. Campostrini, M. Campostrini, M. Campostrini, M. Caselle, M. E. Fisher, M. E. Fisher, M. E. Fisher, M. Tissier, Martino De Prato, N.A. Shpot, N.A. Shpot, P. Calabrese, P. Calabrese, P. Schofield, P. Schofield, Pasquale Calabrese, R. A. Pelcovits, R. B. Griffiths, R. Folk, R. Folk, R. Folk, R. Guida, R. J. Birgeneau, R. J. Birgeneau, S. A. Newlove, S. Fishman, S. N. Isakov, S. W. Edwards, V. J. Emery   +56 more
core   +1 more source

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

Advanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis, Andrea Cosola, Pierre Bourdon, Hichem Dammak, Marco Sangermano, Frédéric Demoly, Marco Faustini, Amélie Pérot, Didier Lairez, Rakine Mouhoubi, Sébastien Blanquer, Giancarlo Rizza   +11 more
wiley   +1 more source

Numerical wave propagation for the triangular $P1_{DG}$-$P2$ finite element pair

, 2010
Inertia-gravity mode and Rossby mode dispersion properties are examined for discretisations of the linearized rotating shallow-water equations using the $P1_{DG}$-$P2$ finite element pair on arbitrary triangulations in planar geometry.
Arakawa, Brenner, C.J. Cotter, Comblen, Cotter, Cotter, D.A. Ham, Fox-Rabinovitz, Gresho, Kossevich, Le Roux, Le Roux, Majewski, Randall, Raviart, Ringler, Roux, Roux, Satoh, Thuburn, Thuburn, Umgiesser, Walters   +22 more
core   +1 more source

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

Advanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang, Zisheng Du, Hongyuan Yang, Debabrata Bagchi, Ruotao Yang, Prashanth W. Menezes, Sugang Meng   +6 more
wiley   +1 more source

High Frequency limit of the Helmholtz Equations

Revista Matemática Iberoamericana, 2002
We derive the high frequency limit of the Helmholtz equations in terms of quadratic observables. We prove that it can be written as a stationary Liouville equation with source terms. Our method is based on the Wigner Transform, which is a classical tool for evolution dispersive equations.
Benamou, Jean-David, Castella, François, Katsaounis, Thodoros, Perthame, Benoît   +3 more
openaire   +5 more sources

From Mechanics to Electronics: Influence of ALD Interlayers on the Multiaxial Electro‐Mechanical Behavior of Metal–Oxide Bilayers

Advanced Functional Materials, EarlyView.
Ultrathin AlOxHy interlayers between aluminum films and polymer substrates significantly improve electro‐mechanical properties of flexible thin film systems. By precisely controlling interlayer thickness using atomic layer deposition, this study identifies an optimal interlayer thickness of 5–10 nm that enhances ductility and delays cracking.
Johanna Byloff, Vivek Devulapalli, Daniele Casari, Thomas E. J. Edwards, Claus O. W. Trost, Megan J. Cordill, Shuhel Altaf Husain, Pierre‐Olivier Renault, Damien Faurie, Barbara Putz   +9 more
wiley   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source