Results 1 to 10 of about 647,843 (330)

Explosibility and Flammability Characteristics of Nicotinic Acid-Lycopodium/Air Mixtures

Chemical Engineering Transactions, 2014
Powder products are frequently meet as dust mixtures in industrial processes. However the effect of mixing combustible dusts on the flammability and explosion behaviour of their mixture is still unclear.
R. Sanchirico, P. Russo, V. Di Sarli, A. Di Benedetto   +3 more
doaj   +1 more source

Gas and coal dust explosion perception alarm and explosion source judgment method based on video image

Gong-kuang zidonghua, 2020
Video image characteristics of gas and coal dust explosion are analyzed: Explosive fireball is usually red with high brightness, high temperature and strong radiation of infrared and ultraviolet rays, and area of the fireballs expands rapidly; Area ...
SUN Jiping, FAN Weiqiang
doaj   +1 more source

Dust composition and mass-loss return from the luminous blue variable R71 in the LMC [PDF]

, 2014
We present an analysis of mid-and far-infrared (IR) spectrum and spectral energy distribution (SED) of the LBV R71 in the LMC.This work aims to understand the overall contribution of high-mass LBVs to the total dust-mass budget of the interstellar medium
Meixner, M., Min, M., Niyogi, S. Guha, Seale, J., Tielens, A. G. G. M., Waters, L. B. F. M.   +5 more
core   +3 more sources

A Scattered Light Echo around SN 1993J in M81

, 2002
A light echo around SN 1993J was observed 8.2 years after explosion by a HST WFPC2 observation, adding to the small family of supernovae with light echoes.
Bromage G. E., Ji‐Feng Liu, Joel N. Bregman, Lewis J. R., Patrick Seitzer   +4 more
core   +1 more source

Preliminary study on the tea dust explosion: the effect of tea dust size

MATEC Web of Conferences, 2019
Food-based dust is considered as combustible dust as they composed of distinct particles, regardless of the size or chemical composition and when suspended in air or any other oxidizing medium over a range of concentrations will present a fire or ...
Nur Hikmah Semawi, Siti Zubaidah Sulaiman, Noor Sabrina Ahmad Mutamim, Siti Kholijah Abdul Mudalip, Rohaida Che Man, Shalyda Md Shaarani, Zatul Iffah Mohd Arshad, Hayder A Abdul Bari, Rafiziana Md Kasmani   +8 more
doaj   +1 more source

A Spitzer Survey for Dust in Type IIn Supernovae [PDF]

, 2011
Recent observations suggest that Type IIn supernovae (SNe IIn) may exhibit late-time (>100 days) infrared (IR) emission from warm dust more than other types of core-collapse SNe.
Alexei V. Filippenko, Alicia M. Soderberg, Andrews, Andrews, Blanc, Blondin, Blondin, Bode, Boles, Carlo, Challis, Chandra, Chandra, Chandra, Chandra, Chugai, Chugai, Dahlén, Drake, Dwek, Elias, Fazio, Fesen, Fox, Fox, Fransson, Gal-Yam, Garnavich, Gerardy, Graham, Herter, Hildebrand, Immler, Immler, Immler, Itagaki, Jeffrey M. Silverman, Kiewe, Kotak, Kotak, Kotak, Kozasa, Langer, Lee, Lewis, Li, Luckas, Maeder, Maeder, Markwardt, Marsden, Matheson, Matsuura, Meikle, Meikle, Meikle, Meikle, Merrill, Michael F. Skrutskie, Milisavljevic, Miller, Miller, Miller, Modjaz, Mohan Ganeshalingam, Nakano, Nakar, Nathan Smith, Nozawa, Nozawa, Ori D. Fox, Pignata, Prasad, Prasad, Prasad, Prieto, Quimby, Rest, Roger A. Chevalier, Schaller, Schlegel, Silverman, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Soderberg, Steele, Stritzinger, Sugerman, Telesco, Thea N. Steele, Thompson, Thrasher, Tsvetkov, Williams   +101 more
core   +3 more sources

Can Light Echoes Account for the Slow Decay of Type IIn Supernovae? [PDF]

, 1999
The spectra of type IIn supernovae indicate the presence of apre-existing slow, dense circumstellar wind (CSW). If the CSW extends sufficiently far from the progenitor star, then dust formation should occur in the wind.
Bradley E. Schaefer, Bruce Roscherr, Chugai N. N., Chugai N. N., Hagen H. J., Patat F., Pearce G., Plewa T., Schlegel E. M., Turatto M.   +9 more
core   +4 more sources

Early Dust Formation and a Massive Progenitor for SN 2011ja? [PDF]

, 2015
SN 2011ja was a bright (I = -18.3) Type II supernova occurring in the nearby edge on spiral galaxy NGC 4945. Flat-topped and multi-peaked H-alpha and H-beta spectral emission lines appear between 64 - 84 days post-explosion, indicating interaction with a
Andrews, J. E., Barlow, M. J., Clayton, Geoffrey C., Drass, H., Krafton, Kelsie M., Matsuura, M., Montiel, E., Sugerman, Ben E. K., Wesson, R.   +8 more
core   +4 more sources

On Absorption by Circumstellar Dust, With the Progenitor of SN2012aw as a Case Study

, 2012
We use the progenitor of SN2012aw to illustrate the consequences of modeling circumstellar dust using Galactic (interstellar) extinction laws that (1) ignore dust emission in the near-IR and beyond; (2) average over dust compositions, and (3) mis ...
C. S. Kochanek, Draine, Fraser, Freedman, Gehrels, Goobar, Immler, Ivezic, Ivezic, Kochanek, Kochanek, Massey, Matzner, Moretti, O'Connor, Prieto, R. Khan, Soderberg, Stockdale, Sugerman, Szczygieł, Thompson, Ugliano, Van Dyk, Wang, X. Dai, Yadav   +26 more
core   +1 more source

A Search for Infrared Emission from Core-Collapse Supernovae at the Transitional Phase

, 2012
Most of the observational studies of supernova (SN) explosions are limited to early phases (< a few yr after the explosion) of extragalactic SNe and observations of SN remnants (> 100 yr) in our Galaxy or very nearby galaxies.
Andrews, Artyukhina, Baars, Bode, Bouchet, Bouchet, Cherchneff, Chu, Chugai, Dale, Dopita, Draine, Dwek, Dwek, Dwek, Dwek, Edoh, Fox, Fox, Fox, Freedman, Gordon, Graham, Hidehiro Kaneda, Hideo Matsuhara, Hines, Immler, Immler, Itsuki Sakon, Kaneda, Keiichi Maeda, Ko Arimatsu, Kotak, Kozasa, Lenz, Liszt, Lorente, Masaomi Tanaka, Meikle, Meikle, Meikle, Mezger, Montes, Murakami, Méndez, Nozawa, Nozawa, Nozawa, Nozawa, Onaka, Petre, Rho, Rho, Rieke, Ryo Ohsawa, Sakon, Schlegel, Schlegel, Schlegel, Schlegel, Schoniger, Seok, Sibthorpe, Skrutskie, Smith, Smith, Smith, Soria, Sugerman, Swinyard, Takashi Onaka, Takaya Nozawa, Takehiko Wada, van Dyk, Werner, Williams   +75 more
core   +1 more source