At present, the world is committed to development of environmentally friendly, sustainable and industrial safety. The effective treatment solid waste can be applied in field It one ways apply safety modify combine active powder prepare waste-based composite explosion inhibitors it underground coal dust explosion. This paper introduces modification preparation methods waste, analyzes good suppre...

According to the planet origin concept proposed in this paper the protosun center explodes resulting in a shock wave running through the pre-solar nebula that then returns to the center and generates a new explosion and a new wave. Recurrent explosions in the pre-solar nebula result in a spherical standing sound wave with its antinodes concentrating dust. Dust then forms rotating rings that tra...

Coal dust endangers the health and safety of workers in underground coal mines. Therefore, developing suppressants with prevention explosion-proof properties is critical. The influence molasses on explosion decomposition deposited mines was investigated using 20 L experiments thermogravimetric differential thermal analysis (TG-DTA). Findings reveal that, first, can weakly promote at low concent...

We present a theoretical model for Type Ib supernova (SN) 2006jc. We calculate the evolution of the progenitor star, hydrodynamics and nucleosynthesis of the SN explosion, and the SN bolometric light curve (LC). The synthetic bolometric LC is compared with the observed bolometric LC constructed by integrating the UV, optical, near-infrared (NIR), and mid-infrared (MIR) fluxes. The progenitor is...

Abstract In supernovae (SNe), where the light curves show evidence of strong and early interaction between ejecta circumstellar matter (CSM), formation new dust is estimated to take place in a dense shell gas forward shock (FS) reverse (RS). For first time, this study mechanism modeled. A set nine cases, considering variations mass pre-explosion mass-loss rates, considered, accounting for diver...

ABSTRACT We present an extensive analysis of the late-time mid-infrared (mid-IR) evolution Type IIb SN 1993J from 10–26 yr post-explosion based on archival – mostly previously unpublished photometric data Spitzer Space Telescope in conjunction with InfraRed Spectrograph spectrum. is one best-studied supernovae (SNe) decade-long multiwavelength set published various papers; however, its detailed...

To study the flame propagation characteristics of coal dust explosion, principal component analysis and BP neural network are used to predict farthest distance maximum speed propagation. Among eight influencing factors characteristics, three components extracted named “the factor volatility,” intermediate diameter,” environmental temperature.” By using network, it is found that minimum predicti...