Search Results - "Apostolov, A."
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1
Band gap of ion-doped La2NiMnO6 nanoparticles
Published in The European physical journal. B, Condensed matter physics (2024)“…We have studied theoretically the magnetization M and the band gap energy E g in dependence on temperature, size and ion doping concentration in the double…”
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2
Magnetic, electric, and dielectric properties of ion-doped Fe2TeO6 nanoparticles
Published in The European physical journal. B, Condensed matter physics (2023)“…The magnetic, electric, and dielectric properties of pure and ion-doped antiferromagnetic magnetoelectric Fe 2 TeO 6 (FTO) nanoparticles (NPs) are investigated…”
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3
Mobility of dry granular flows of varying collisional activity quantified by smart rock sensors
Published in Canadian geotechnical journal (01-10-2020)“…Highly instrumented particles (i.e., “smart rocks”) were included in monodisperse dry granular landslide experiments to quantify the collisional nature of such…”
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4
Theoretical study of the multiferroic properties of DyFeWO6
Published in The European physical journal. B, Condensed matter physics (2022)“…Magnetization M , specific heat C p , polarization P and dielectric constant ϵ of DyFeWO 6 are investigated for the first time using a microscopic model and…”
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5
Magnetic, dielectric and optical properties of Al-, Mg-, Co- and Zn-ion–doped CuCrO2
Published in Europhysics letters (01-02-2021)“…The effects of Al, Mg, Co and Zn ion doping on different properties of multiferroic CuCrO2 are studied using a microscopic model and the Green's function…”
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6
Compatibilizing effect of maleated polypropylene on the mechanical properties and morphology of injection molded polyamide 6/polypropylene/organoclay nanocomposites
Published in Polymer (Guilford) (01-11-2003)“…Polyamide 6/polypropylene (PA6/PP=70/30 parts) blends containing 4 phr (parts per hundred resin) of organophilic modified montmorillonite (organoclay) were…”
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7
Doping Effects on the Multiferroic Properties of KNbO3 Nanoparticles
Published in Magnetochemistry (01-03-2024)“…The magnetization, polarization, and band-gap energy in pure and ion-doped KNbO3 (KNO) bulk and nanoparticles (NPs) are investigated theoretically using a…”
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8
Wide Area Protection-Technology and Infrastructures
Published in IEEE transactions on power delivery (01-04-2006)“…Wide area measurements have been widely used in the energy management systems (EMS) of power systems for monitoring, operation, and control. In recent years,…”
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9
Magnetization, Band Gap and Specific Heat of Pure and Ion Doped MnFe2O4 Nanoparticles
Published in Magnetochemistry (01-03-2023)“…We have studied the magnetic properties of ion doped MnFe2O4 nanoparticles with the help of a modified Heisenberg model and Green’s function theory taking into…”
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10
EFFECT OF FEED RESTRICTION AND LOW PROTEIN LEVEL ON THE PERFORMANCE OF GROWING PIGS
Published in Trakia journal of sciences (01-03-2023)“…Aim: The aim of the experiment was to investigate the effect of ration levels and protein levels on feeding patterns of weaned pigs ensuring good health and…”
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11
Multiferroic and phonon properties near the phase transitions of pure and ion-doped Ca3Mn2O7
Published in Phase transitions (03-10-2021)“…The magnetic, dielectric and phonon properties of Ca Mn O are investigated using a microscopic model and the Green's function technique. Electrically induced…”
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12
Multiferroic and phonon properties at the phase transition of S = 1/2 chain cuprates NaCu2O2. Comparison with LiCu2O2
Published in Phase transitions (03-08-2021)“…The multiferroic properties of NaCu O (NCO) around the phase transition temperature are studied theoretically. The total polarization P is zero without…”
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13
ESTABLISHING OF THE EFFECT OF DIFFERENT LEVELS OF TRITICALE IN COMPOUND FEED FOR GROWING PIGS
Published in Trakia journal of sciences (01-06-2022)“…Two scientific experiments with growing pigs, starting immediately after weaning were conducted in the Agricultural Institute - Shumen. The first experiment…”
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14
Experimental Study of the Chromatographic Extraction Process of Separation in a Closed Multistage Loop
Published in Theoretical foundations of chemical engineering (01-09-2021)“…Results of an experimental study on a semibatch multistage chromatographic extraction process for the separation of a binary mixture of components in a…”
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15
On the Operation of a Cascade of Mixing and Settling Extractors in the Modes of Chromatography and in Free Liquid Membranes
Published in Theoretical foundations of chemical engineering (01-08-2023)“…The following new possibilities are considered for the arrangement of extraction and separation processes in a cascade of mixing and settlement extractors: the…”
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16
Morphology and mechanical properties of layered silicate reinforced natural and polyurethane rubber blends produced by latex compounding
Published in Journal of applied polymer science (05-04-2004)“…Natural rubber (NR), polyurethane rubber (PUR), and NR/PUR‐based nanocomposites were produced from the related latices by adding a pristine synthetic layered…”
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17
Magnetoelectric coupling and spin reorientation in BiFeO3
Published in physica status solidi (b) (01-04-2017)“…We have studied the electric properties of multiferroic BiFeO3 (BFO) using the transverse Ising model in terms of pseudo‐spin variables S with S= 7/2 and the…”
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18
Microscopic theory of the specific absorption rate for self-controlled magnetic hyperthermia
Published in Journal of magnetism and magnetic materials (15-03-2021)“…•Microscopic model for calculating the value of SAR.•A magnetic complex heterogeneous nanoparticle of core-shell type.•A additional “degree of freedom” using…”
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19
Marine Litter Quantification in the Black Sea: A Pilot Assessment
Published in Turkish journal of fisheries and aquatic sciences (2016)“…Various programs and organizations (IMO, UNEP, IOC UNESCO, FAO) and recently the EU MSFD recognized marine litter (ML) as an issue of global threat from…”
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20
Magnetic field effect on the dielectric properties of rare earth doped multiferroic BiFeO3
Published in Journal of magnetism and magnetic materials (01-11-2020)“…•The dielectric properties of La doped BiFeO3 are theoretically studied.•A kink in the dielectric function (DF) is observed near the Neel temperature TN.•TN…”
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