Results 21 to 30 of about 2,883,144 (286)

Signatures of turbulence in the dense interstellar medium [PDF]

open access: yesSymposium - International Astronomical Union, 1991
We present an ensemble of recent observational results on molecular clouds which, taken separately, could all be understood by invoking various unrelated physical processes, but taken all together form a coherent ensemble stressing the imprints of turbulence in the physics of the cold interstellar medium.
Falgarone, E., Phillips, T. G.
openaire   +2 more sources

Research of automatic control technology of dense medium coal preparatio

open access: yesGong-kuang zidonghua, 2014
The paper introduced existing status and characteristics of automatic control technology of dense medium coal preparation, outlined several systems included in automatic control of dense medium coal preparation and common instruments used in dense medium
GUO Nan, CHEN Zhen, LUO Xuhui
doaj   +1 more source

Dense Medium Cyclone [PDF]

open access: yes, 2000
This paper outlines the importance of dense medium cyc-lones in coal cleaning along with process optimisation through modelling. Dense medium cyclone was developed by Dutch State Mines in 1940s and since inception it has gained tremendous ...
Rao, T C
core   +1 more source

Effect of collisions on neutrino flavor inhomogeneity in a dense neutrino gas

open access: yesPhysics Letters B, 2017
We investigate the stability, with respect to spatial inhomogeneity, of a two-dimensional dense neutrino gas. The system exhibits growth of seed inhomogeneity due to nonlinear coherent neutrino self-interactions.
Vincenzo Cirigliano   +2 more
doaj   +1 more source

Coherent neutrino interactions in a dense medium [PDF]

open access: yesPhysical Review D, 1997
Motivated by the effect of matter on neutrino oscillations (the MSW effect) we study in more detail the propagation of neutrinos in a dense medium. The dispersion relation for massive neutrinos in a medium is known to have a minimum at nonzero momentum p \sim (G_Fρ)/\sqrt{2}.
Kiers, Ken, Weiss, Nathan
openaire   +2 more sources

Development of an automatic system to monitor the performance of a dense medium (mineral) separation process [PDF]

open access: yes, 1989
Includes bibliographical references.Dense Medium Separation (DMS) is a process used extensively in the minerals processing industry to separate dense from less dense material in a dense fluid.
Alberts, P A
core   +1 more source

Beneficiation Processing of Magnetite ore from Lampung as Dense Media for Dense Medium Separator in Coal Washing Plant [PDF]

open access: yesE3S Web of Conferences
Until recently, coal washing plants in Indonesia are still using imported magnetite from Australia as dense media for dense medium separator units. To be effectively utilized as a dense media, magnetite ore needs to be concentrated to remove gangue ...
Handayani Ismi   +3 more
doaj   +1 more source

Spigot capacity of dense medium cyclones [PDF]

open access: yes, 2008
Dissertation (MEng (Metallurgical))--University of Pretoria, 2008.Dense medium cyclones are used extensively in the mineral processing industry to beneficiate various minerals including coal, diamonds and iron ore, amongst others.

core   +1 more source

Early Spectroscopy and Dense Circumstellar Medium Interaction in SN 2023ixf

open access: yesThe Astrophysical Journal Letters, 2023
We present the optical spectroscopic evolution of SN 2023ixf seen in subnight cadence spectra from 1.18 to 15 days after explosion. We identify high-ionization emission features, signatures of interaction with material surrounding the progenitor star ...
K. Azalee Bostroem   +55 more
doaj   +1 more source

Estimation of Bed Expansion and Separation Density of Gas–Solid Separation Fluidized Beds Using a Micron-Sized-Particle-Dense Medium

open access: yesSeparations, 2021
Coal is the dominant energy resource in China. With the Chinese policy of committing to reducing peak carbon dioxide emissions and achieving carbon neutrality, coal separation has recently become a hot topic, especially the fluidized separation of fine ...
Xuchen Fan, Chenyang Zhou
doaj   +1 more source

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