47 citations · 138 across the 11 of their papers we have counts for
11 papers
The membership of stars, density profile and mass segregation in open clusters using a new machine learning-based method
Mohammad Noormohammadi, Mehdi Khakian Ghomi, Hossein Haghi
A combination of two unsupervised machine learning algorithms, DBSCAN and GMM are used to find members with a high probability of twelve open clusters, M38, NGC2099, Coma Ber, NGC7…
Probing the pressure dependence of sound speed and attenuation in bubbly media: Experimental observations, a theoretical model and numerical calculations
AJ. Sojahrood, Q. Li, H. Haghi +3
The problem of attenuation and sound speed of bubbly media has remained partially unsolved. Comprehensive data regarding pressure-dependent changes of the attenuation and sound spe…
Experimental and numerical evidence of intensified non-linearity at the micro and nano scale: The lipid coated acoustic bubble
AJ Sojahrood, H. Haghi, T. M. Porter +2
A lipid coated bubble (LCB) oscillator is a very interesting non-smooth oscillator with many important applications ranging from industry and chemistry to medicine. However, due to…
On the threshold of 1/2 order subharmonic emissions in the oscillations of ultrasonically excited bubbles
A. J. Sojahrood, N. R. Shirazi, H. Haghi +2
The pressure threshold for 1/2 order subharmonic (SH) emissions and period doubling during the oscillations of ultrasonically excited bubbles is thought to be minimum when the bubb…
Classification of the mechanisms of wave energy dissipation in the nonlinear oscillations of coated and uncoated bubbles
A. J. Sojahrood, H. Haghi, N. R. Shirazi +2
Acoustic waves are dissipated when they pass through bubbly media. Dissipation by bubbles takes place through thermal damping (Td), radiation damping (Rd) and damping due to the fr…
Nonlinear energy loss in the oscillations of coated and uncoated bubbles: Role of thermal, radiation damping and encapsulating shell at various excitation pressures
AJ Sojahrood, H Haghi, Q Li +3
A simple generalized model (GM) for coated bubbles accounting for the effect of compressibility of the liquid is presented. The GM was then coupled with nonlinear ODEs that account…
Critical corrections to formulations of nonlinear energy dissipation of ultrasonically excited bubbles and a unifying parameter to asses and enhance bubble activity in applications
AJ Sojahrood, H Haghi, R Karshafian +1
Nonlinear oscillations of bubbles can significantly increase the attenuation of the host media. Optimization of bubble related applications needs a realistic estimation of the medi…
On the collective behavior of interacting polydisperse microbubbles
H. Haghi, AJ Sojahrood, M. C. Kolios
Exploiting the full potential of MBs for applications requires a good understanding of their complex dynamics. Improved understanding of MB oscillations can lead to further enhance…
Pressure dependence of the ultrasound attenuation and speed in bubbly media: Theory and experiment
A. J. Sojahrood, Q. Li, H. Haghi +3
Results of the measurements of sound speed and attenuation in a bubbly medium are reported. Monodisperse bubble solutions are sonicated with broadband ultrasound pulses with pressu…
A comprehensive bifurcation method to analyze the super-harmonic and ultra-harmonic behavior of the acoustically excited bubble oscillator
AJ. Sojahrood, D. Wegierak, H. Haghi +2
Acoustically excited bubbles are involved in a wide range of phenomena and applications ranging from oceanography to sonoluminescence; they have applications in chemistry, medical…
The Magellanic Stream in Modified Newtonian Dynamics
Hossein Haghi, Sohrab Rahvar, Akram Hasani-Zonooz
The dynamics of the Magellanic Stream (MS) as a series of clouds extending from the Magellanic Clouds (MCs) to the south Galactic pole is affected by the distribution and the amoun…