One of the principal motivations of wide-field and synoptic surveys is the search for and study of transients. By transients I mean those sources which arise from the background, are detected, and then fade away to oblivion. Transients in distant galaxies need to be sufficiently bright so as to be detectable and in almost all cases these transients are catastrophic events, marking the deaths of...

We investigate the dynamics of solitons in generalized Klein-Gordon equations in the presence of nonlinear damping and spatiotemporal perturbations. We will present different mechanisms for soliton explosions. We show (both analytically and numerically) that some space-dependent perturbations or nonlinear damping can make the soliton internal mode unstable leading to soliton explosion. We will ...

The authors have deeply been interested in concerns about health, safety & environment (HSE) in recent years. HSE demands in engineering, particularly at the design and construction stages, are becoming stricter and stricter. In oil and gas plants, many pieces of equipment, and much of the piping, treat highly flammable gases, such as natural gas, methane, propane and hydrogen, which if release...

Realistic explosion effects can enhance the realism and immersion in virtual battlefield. The real-time explosion effects simulation of the explosion products and their interactions, such as explosive fireball, explosive smoke and explosive ash, will be exploded into two phases: explosions and fuel modeling. The explosions modeling describe the formation and spreading of the explosive fireball....

s of the original Soviet research papers arranged according to fairly general subject areas. The abstracts vary in length depending on the degree of pertinence and significance of the individual papers. Their purpose is primarily to call attention to the work being done in the USSR on the given subject. Part B combines studies on more specialized topics, each based on a number of closely relate...

We have observed, in numerical simulations, strongly asymmetric soliton explosions in dissipative systems modeled by the one-dimensional complex cubic-quintic Ginzburg-Landau equation. The explosions occur at one side of the soliton, in spite of the fact that the initial conditions and the equation itself are symmetric. From one explosion to the next, the side of the soliton where it occurs alt...

INTRODUCTION the ground, however, the term "shock" 1.01 An explosion, in general, reis used, because the effect is like that of suIts from the very rapid release of a a sudden impact. large amount of energy within a limited 1.02 Nuclear weapons are similar to space. This is true for a conventional those of more conventional types insofar "high explosive," such as TNT, as well as their destructi...

A model of homogeneous explosions with competing branching and recombination processes due to Kapila is analyzed by singular perturbation methods. In this model, the concentration of radicals is very low during a long induction period that ends with a rapid radical-growth stage in which all the reactants are consumed as the radicals reach their peak concentrations. The sudden jump in radical co...

As an idealized model of the effects of energy release by supernovae during galaxy formation, we consider an explosion at the center of a halo which forms at the intersection of filaments in the plane of a cosmological pancake by gravitational instability during pancake collapse. Such halos resemble the virialized objects found in N–body simulations in a CDM universe and, therefore, serve as a ...

The SH waves from 21 underground nuclear explosions at Pahute Mesa (NTS) were used to investigate tectonic release. The equivalent double-couple representation of the tectonic release, which was constrained by waveform modeling and the polarity of sP, is very similar for all the explosions. The average orientation is a right-lateral, strike-slip fault trending N15°W. Seismic moments were determ...