Results 11 to 20 of about 434,184 (240)
Beaming and jets in gamma-ray bursts [PDF]
The origin of GRBs has been a mystery for almost 30 years. The afterglow observed in the last few years enabled redshift determination for a handful of bursts, and the cosmological origin is now firmly established.
Sari, Re'em
core +2 more sources
Spectral Singularities of a Complex Spherical Barrier Potential and Their Optical Realization
The mathematical notion of a spectral singularity admits a physical interpretation as a zero-width resonance. It finds an optical realization as a certain type of lasing effect that occurs at the threshold gain.
Ahmed +20 more
core +1 more source
Curvature dependence of the effect of ionic functionalization on the attraction among nanoparticles in dispersion [PDF]
Solubilization of nanoparticles facilitates nanomaterial processing and enables new applications. An effective method to improve dispersibility in water is provided by ionic functionalization.We explore how the necessary extent of functionalization ...
Alenka Luzar +5 more
core +3 more sources
Inertial modes in near-spherical geometries [PDF]
We propose a numerical method to compute the inertial modes of a container with near-spherical geometry based on the fully spectral discretisation of the angular and radial directions using spherical harmonics and Gegenbauer polynomial expansion respectively.
Rekier, J +3 more
openaire +3 more sources
Stability of a $d$-dimensional thin-shell wormhole surrounded by quintessence [PDF]
We study the stability of different higher dimensional thin--shell wormholes (HDTSW) in general relativity with a cosmological constant. We show that a $d$--dimensional thin--shell wormhole surrounded by quintessence can have three different throat ...
Bahamonde, Sebastian +2 more
core +2 more sources
The Scaling Behavior of Classical Wave Transport in Mesoscopic Media at the Localization Transition
The propagation of classical wave in disordered media at the Anderson localization transition is studied. Our results show that the classical waves may follow a different scaling behavior from that for electrons.
A. Z. Genack +10 more
core +2 more sources
Frequency Dependent Specific Heat from Thermal Effusion in Spherical Geometry [PDF]
We present a novel method of measuring the frequency dependent specific heat at the glass transition applied to 5-polyphenyl-4-ether. The method employs thermal waves effusing radially out from the surface of a spherical thermistor that acts as both a ...
Bo Jakobsen +6 more
core +3 more sources
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Designing digital technologies and learning activities for different geometries [PDF]
This chapter focuses on digital technologies and geometry education, a combination of topics that provides a suitable avenue for analysing closely the issues and challenges involved in designing and utilizing digital technologies for learning mathematics.
Jones, Keith +2 more
core +1 more source
Metric-Affine Geometries with Spherical Symmetry [PDF]
We provide a comprehensive overview of metric-affine geometries with spherical symmetry, which may be used in order to solve the field equations for generic gravity theories which employ these geometries as their field variables. We discuss the most general class of such geometries, which we display both in the metric-Palatini formulation and in the ...
openaire +2 more sources

