Prestress in amorphous solids bears the memory of their formation and plays a profound role in their mechanical properties.Here we develop a set of mathematical tools to investigate mechanical response of prestressed systems, using stress rather than strain as the fundamental variable.This theory allows microscopic prestress to vary for the same bo
The role of post-sunset vertical drifts at the equator in predicting the onset of VHF scintillations during high and low sunspot activity years
The day-to-day variability in the occurrence of ionospheric scintillations, which are of serious concern in the trans-ionospheric communications, makes their prediction still a challenging problem.This paper reports on a systematic study in quantitatively identifying the precursors responsible, such as pre-reversal E×B drift velocity, geo-mag
From the instrumental function to the communicative function of artifacts
This article explores the identification and analysis of the possible functions, or the instrumental, Jeans utilitarian, meaningful, communicative, aesthetic and symbolic, values, from which objects and artifacts are represented, interpreted and renewed, in the context of technological innovation and Shackets the prevailing consumer society.The ana
A Modified Multi-Objective Particle Swarm Optimization Based on Levy Flight and Double-Archive Mechanism
In the past few decades, multi-objective particle swarm optimization (PSO) has increasingly attracted attention from scientists.To obtain a set of more accurate and well-distributed solutions, many variations of multi-objective PSO algorithms have been proposed.However, for complicated multi-objective problems, existing multi-objective PSO algorith