J. Petrović

Electromagnetic Hydrodynamic Convective Flow of Tetra Hybrid Nanofluid in a Porous Medium

J. Petrović, Milica Nikodijević Đorđević, Miloš Kocić, Jasmina Bogdanović Jovanović et autres

Electromagnetic hydrodynamic (EMHD) mixed convective flow of tetra hybrid nanofluid (TeHNF) in a Darcy-Forchheimer porous medium in a vertical channel with thermal radiation is considered in the paper. The electric and magnetic fields are homogeneous, magnetic perpendicular to the walls of the …

rs (code pays fourni par la source)

Structural And Morphological Characterization Of Y2O3/TiO2 Composite With Application In Waste Water Treatment

Aleksandar Jovanović, J. Petrović, Marija Simić, Jelena Dimitrijević et autres

Preservation of a healthy environment is one of the global goals of sustainable development. A special sphere belongs to waters, both natural and waste, which need to be purified before being discharged into waterways. Various technological processes have found their application in …

Photometric study of hot Algol-type binaries with long cycles

J. Garcés, R. E. Mennickent, J. Petrović, D. Barría et autres

Context. Double periodic variables (DPVs) are hot Algol-type interacting binary systems with an orbital and a long photometric cycle. The origin of the latter may be related to cyclic structural changes in the accretion disc that surrounds the gainer star that are …

Approaching 100Sn: Structural evolution in 98,100Cd via lifetime measurements

G. Zhang, M. Polettini, D. Mengoni, G. Benzoni et autres

The lifetimes of low-lying excited states below the 8 + seniority isomer were directly measured using fast timing detectors in the neutron-deficient isotopes 98,100 Cd. This experiment was conducted with the DEcay SPECtroscopy (DESPEC) setup at GSI, where the ions of interest …

it, hk, us, cn, de, es, fr, fi, se, sa, gb (code pays fourni par la source)

Impact of Electrical and Moving Magnetic Fields on the Heat Transfer Flow of Immiscible Pure Fluids and Nanofluids Through Porous Media with Varied Porosity

J. Petrović, Živojin Stamenković, Miloš Kocić, Dragiša Nikodijević

This paper discusses fully developed electromagnetohydrodynamic (EMHD) flow and heat transfer of an immiscible pure fluid and a nanofluid in a horizontal channel.The channel is saturated with a porous medium, and its top and bottom halves have different porosities.The pure fluid flows …

rs (code pays fourni par la source)

POSSIBLE EFFECTS OF MAGNETIC ACTIVITY IN ORBITAL LIGHT CURVES OF CLOSE BINARIES

J. Garcés, R. E. Mennickent, J. Petrović

Abstract. In close binary systems with magnetic activity in at least one of their com- ponents, distinctive features can be observed in their light curves. This study presents a photometric analysis of several binary systems with at least one active component. We …

cl, rs (code pays fourni par la source)

Examining the brightness variability, accretion disk, and evolutionary stage of the binary OGLE-LMC-ECL-14413

R. E. Mennickent, G. Djurašević, J. A. Rosales, J. Garcés et autres

Our study aims to elucidate both short-term and long-term variations in the light curve of the eclipsing system OGLE-LMC-ECL-14413, with a particular focus on the unusual reversals in eclipse depth. We aim to clarify the role of the accretion disk in these …

Examining the brightness variability, accretion disk, and evolutionary stage of the binary OGLE-LMC-ECL-14413

R.E. Mennickent, G. Djurašević, J. A. Rosales, J. Garcés et autres

Context. Several intermediate-mass close binary systems exhibit photometric cycles longer than their orbital periods, potentially due to changes in their accretion disks. Past studies indicate that analyzing historical light curves can provide valuable insights into disk evolution and track variations in mass …

cl, rs, pl (code pays fourni par la source)

Low-mass contact binaries: orbital stability at extreme low mass ratios

Surjit S. Wadhwa, N. R. Landin, Б. Арбутина, N. F. H. Tothill et autres

ABSTRACT With the ever-increasing number of light-curve solutions of contact binary systems, an increasing number of potential bright red nova progenitors are being reported. There remains, however, only one confirmed event. In this study, we undertake a comprehensive review of the orbital …

au, br, rs (code pays fourni par la source)

Low Mass Contact Binaries: Orbital Stability at Extreme Low Mass Ratios

Surjit S. Wadhwa, N. R. Landin, Б. Арбутина, N. F. H. Tothill et autres

With the ever-increasing number of light curve solutions of contact binary systems increasing number of potential bright red nova progenitors are being reported. There remains, however, only one confirmed event. In the present study we undertake a comprehensive review of orbital stability …

Double periodic variable V4142 Sgr: A key to approaching the stellar dynamo

J. A. Rosales, J. Petrović, R. E. Mennickent, D. R. G. Schleicher et autres

Aims. In this work we focus on the double periodic variable (DPV) star V4142 Sgr, aiming to provide a deeper understanding of its evolution, the formation of its accretion disk, and the operation of magnetic dynamos within the donor star. We analyze …

cl, rs, us (code pays fourni par la source)

Heat transfer effects on the EMHD flow of ternary hibrid nanoluid in the channel with porous medium

Milica Nikodijević-Đorđević, J. Petrović, Miloš Kocić, Živojin Stamenković

EMHD flow and heat transfer of a ternary hybrid nanofluid is considered in this paper. The base fluid is blood with three types of nanoparticles suspended in it. Fluid flows in a horizontal channel with walls on different temperatures and its filled …

rs (code pays fourni par la source)