- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Iron oxide chemistry and applications
- Advanced Sensor Technologies Research
- Extraction and Separation Processes
- Advancements in Battery Materials
- Plant Stress Responses and Tolerance
- Copper-based nanomaterials and applications
- Electrical and Thermal Properties of Materials
- Magnetic Properties and Synthesis of Ferrites
- Coal and Its By-products
- Plant responses to water stress
- Magnetic and transport properties of perovskites and related materials
- Financial Distress and Bankruptcy Prediction
- Dielectric properties of ceramics
- Geology and Paleoclimatology Research
- Coal and Coke Industries Research
- Recycling and utilization of industrial and municipal waste in materials production
- Ionic liquids properties and applications
- Microwave Dielectric Ceramics Synthesis
- Plant responses to elevated CO2
- Pigment Synthesis and Properties
- Phytoplasmas and Hemiptera pathogens
- Soil erosion and sediment transport
- Mineralogy and Gemology Studies
University of Belgrade
2012-2024
Institute for Multidisciplinary Research
2012-2022
Mining and Metallurgy Institute Bor
2018
National Institute for Research and Development of Isotopic and Molecular Technologies
2013
Beijing Drainage Group (China)
2003
Abstract This paper presents a conceptual framework for investigation of the factors influencing failure small and medium enterprises (SMEs) as well level their recovery. Based on review literature, all are classified either individual characteristics entrepreneurs or non-individual characteristics, that is, related to SMEs. Having in mind various identified by different researchers studies, authors this formed basic hypothetical qualitative evaluation most significant SME Accordingly,...
The effects of Zn-doping on the dielectric behavior and electrical properties bulk ?-Fe2O3 have been studied. X-ray diffraction analysis revealed presence two phases in all samples: hematite spinel ZnFe2O4, with amount phase increasing Zn content. Scanning electron microscopy combined energy dispersive spectroscopy showed that Zn-bearing occurred form individual ZnFe2O4 grains a matrix. DC conductivity was measured temperature range 25-225oC (298-498 K). Impedance measurements same were...
Indigo carmine is a commonly used industrial blue dye. To determine its concentration in commercially available food dye composed of mixture indigo and D-glucose, this paper characterizes it through (ATR, KBr) FTIR micro-Raman as well UV/Vis clock: Briggs-Rauscher (BR) oscillatory reaction methods. The was detected the bulk only by applying spectroscopy, indicating low percentage present. This research provides an improvement deviations from experimental Raman spectrum calculated...
In this work we have analyzed the effects of Ti doping on structural and electrical properties ?-Fe2O3. When amount added (5 wt.%TiO2) was within solubility degree XRD, SEM EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3) ?, c=13.7484(1) ? slightly increased due to incorporation into rhombohedral lattice. Higher amounts (10 resulted in formation pseudobrookite, besides hematite, confirmed by analysis. Studies electric temperature range 25-225oC at...
Two tomato genotypes with constitutively different ABA level, flacca mutant and wild type of Ailsa Craig cv. (WT), were subjected to three repeated drought cycles, the aim reveal role abscisic acid (ABA) threshold in developing tolerance. Differential responses two obtained: more pronounced stomatal closure, biosynthesis proline accumulation WT compared compensated by dry weight accompanied transient redox disbalance flacca. Fourier-transform infrared (FTIR) spectra analysis isolated cell...
Plants are inevitably exposed to extreme climatic conditions that lead a disturbed balance between the amount of absorbed energy and their ability process it. Variegated leaves with photosynthetically active green leaf tissue (GL) inactive white (WL) an excellent model system study source-sink interactions within same under microenvironmental conditions. We demonstrated excess excitation (EEE) (high irradiance lower temperature), regulated metabolic reprogramming in both tissues allowed...
ABSTRACT Travertines are terrestrial carbonates that commonly associated with fault activity in extensional and transtensional basins. The faults serve as conduits for the rising mixing of carbonate‐enriched fluids thermal meteoric CO 2 inputs promoting travertine precipitation at surface. Therefore, successions provide key constraint on faulting, depositional environments, fluid flow climate. This work focuses succession Miocene Levač Basin, marginal basin Morava Corridor situated junction...
NTC thermistor paste for printing thermal sensors on alumina was formed of very fine Ni 0.5 Cu 0.2 Zn 1.0 Mn 1.3 O 4 powder obtained by a combined mechanical activation/thermal treatment process, organic vehicle and glass frit. Sheet resistivity measured using an R-test matrix it much lower than the value determined pure nickel manganite thermistors. The exponential coefficient calculated from R[ diagram in temperature range-30 to +120°C climatic chamber. Thick film segmented thermistors...
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated south of Serbia occupying an area 700 km2. This volcanic complex is composed predominantly andesites, with sporadic occurrences andesite-basalts, dacites latites, features agate formations that have been very little investigated. study focuses on five selected within Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma...
Coal samples from the Jarando, Tadenje and Progorelica mines organic-rich shale Piskanja boron deposit, all located in Tertiary Ibar Basin, were studied using several methods such as transmitted light microscopy, X-ray powder diffraction (XRD), scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), Fourier-transform infrared (FTIR), well ICP-MS XRF spectrometry for evaluating their mineralogical geochemical compositions. The Basin hosts high-volatile bituminous coal...
Red mud, byproduct of the aluminum industry, poses a significant environmental problem due to its chemical composition and large quantities generated. This study explores potential for valorization through multi-step process that includes reduction, leaching with acid solution, purification, ultrasonic spray pyrolysis (USP). In first step, red mud undergoes carbothermal during which metal oxides are transformed into phase slag. second slag is subjected under various conditions, including...
There is no doubt that small and medium-sized enterprises (SMEs) play a significant role in the economy of one country. The aim this paper to rank SMEs failure factors order identify most influential ones. Identification can help develop an optimal strategy for improving business environment remove obstacles they encounter while conducting business. In addition, existing future entrepreneurs/managers would become aware potential obstacles. Therefore, be able prepare appropriate response...
Novel heat loss flowmeter for water consists of the small plastic housing and two NTC thick film segmented thermistors with reduced dimensions placed along main axis. The were printed using modified nickel-manganese paste sintered in air at 850 °C / 10 min conveyor furnace. first thermistor Th <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> is cold measures input temperature second xmlns:xlink="http://www.w3.org/1999/xlink">2</sub>...
Modifying commercial Li-ion batteries to become more environmentally friendly is of a growing concern. This paper provides an examination potential replacement for cathode material using naturally occurring purpurin in aqueous solutions lithium and sodium salts. The extracted from the Madder plant (Rubia tinctorum) characterized through XRPD, FTIR, SEM methods. intercalation de-intercalation capacities obtained as solution LiNO3 are approximately 40 mAh g−1. Compared capacity ∼35 g−1...
This paper provides an improvement in previously exposed to the general classification problem of selection performers on project behind a set potential who are qualified for relevant works. Thereby, one performer is not selected as whole, but more performers. The basic requirement that any stage only performer. First, there three groups problems from standpoint time and costs, well parameters activities: 1) unique parameters, 2) variants all same activities, 3) various at least relation...
Nanostructured single layered (pure TiO2 , pure ?-Fe2O3 and mixed Fe2O3 /TiO2 with two different oxide ratios, 2 : 3 2) double (TiO2 layer over a layer) thick films have been fabricated by screen printing technology on glass substrate. The pastes used for film preparation were obtained adding an organic vehicle to the powders together small percentage of binding frit. Samples dried up 100 ?C sintered at 650 ?C/60 minutes. Structural, morphological optical studies carried out using XRD, SEM...