Results 61 to 70 of about 151,591 (219)

RESONANT SPLEENS. [PDF]

The Lancet, 1898
n ...
openaire   +2 more sources

Trapped-modes, slow light and collective resonances in metamaterials

, 2009
A new class of metamaterials exhibiting coherent, collective response has been introduced. It is shown that the sharp resonant behaviour of coherent metamaterials can only be observed in arrays of metamaterial elements and is absent from the response of ...
Papasimakis, Nikitas
core  

Characterization of Acoustic Resonance in a High Pressure Sodium Lamp [PDF]

, 2010
With the last decades, the high pressure sodium (HPS) lamp has been supplied in high frequency in order to increase the efficacy of the lamp/ballast system.
Labo Chhun, Sounil Bhosle, Chhun, Labo, Maussion, Pascal, Bhosle, Sounil, Pascal Maussion, Zissis, Georges, Georges Zissis   +7 more
core   +1 more source

The Opacity Project: R-Matrix Calculations for Opacities of High-Energy-Density Astrophysical and Laboratory Plasmas

Atoms
Accurate determination of opacity is critical for understanding radiation transport in both astrophysical and laboratory plasmas. We employ atomic data from R-Matrix calculations to investigate radiative properties in high-energy-density (HED) plasma ...
Anil K. Pradhan, Sultana N. Nahar
doaj   +1 more source

Investigations on diurnal and seasonal variations of Schumann resonance intensities in the auroral region

Annals of Geophysics, 2007
Measurements of the magnetic component of the Schumann resonance in the frequency range 6-14 Hz were performed at high latitude location (TNB Antarctica; geographic coordinates: 74.7°S, 164.1°E; geomagnetic coordinates: 80.0°S, 307.7°E; LT=UT ...
F. Rispoli, P. Palangio, C. Rossi
doaj   +1 more source

1H NMR studies of human blood plasma assignment of resonances for lipoproteins

, 1987
Single-pulse and Hahn spin-echo 500 MHz 1H NMR spectra of human blood plasma and isolated chylomicrons, VLDL, LDL and HDL are reported. The comparison has enabled specific assignments to be made for the resonances of individual lipoproteins in the CH2 ...
Sadler, P.J., La Ville, A., MacLeod, A.F., Bell, J.D., Turner, P.R.   +4 more
core   +1 more source

Zeros of the Jost function for a class of exponentially decaying potentials

Electronic Journal of Differential Equations, 2005
We investigate the properties of a series representing the Jost solution for the differential equation $-y''+q(x)y=lambda y$, $x geq 0$, $q in mathrm{L}({mathbb{R}}^{+})$.
Daphne Gilbert, Alain Kerouanton
doaj  

Normal Form of Periodic FPU Chain of Four Particles with Alternating Masses

Journal of Mathematical and Fundamental Sciences
The periodic Fermi-Pasta-Ulam (FPU) chain is a Hamiltonian system modeling a one-dimensional chain of oscillators with a periodic boundary condition and nearest-neighbor interactions. While previous studies typically restricted the potential function in
Stephanus Ardyanto, Johan Matheus Tuwankotta   +1 more
doaj   +1 more source

Search for Possible Stable Structures in the ${\mathit{T}}_{\mathit{c}\mathit{c}\overline{\mathit{q}}\overline{\mathit{s}}}$ System

Atoms
Inspired by the well-known experimental connections between X(3872), Zcs(4220), and Y(4620), we systematically study the recently reported strange partner of Tcc, the 1+ccq¯s¯ system, and its orbital excitation state 1−ccq¯s¯.
Linkai Li, Xiaohuang Hu, Yuheng Xing, Xinxing Wu, Ning Xu, Yuanrun Zhu, Yue Tan, Yuheng Wu   +7 more
doaj   +1 more source

Natural and Unnatural Parity Resonance States in the Positron-Hydrogen System with Screened Coulomb Interactions

Atoms, 2015
In the present work, we report calculations of resonances in the positron-hydrogen system interacting with screened Coulomb potentials using the method of complex scaling together with employing correlated Hylleraas wave functions.
Ye Ning, Zong-Chao Yan, Yew Kam Ho
doaj   +1 more source