ПЛАТОН репозиторијум: Recent submissions
Now showing items 621-640 of 1190
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Synthesis and characterization of copper (II) complex with 2,6-diacetylpyridine-bis(phenylhydrazone)
(University thought, Publication in Natural Sciences, 2021)The syntheses, physicochemical and structural properties of the novel Cu(II) complex with 2,6-diacetylpyridinebis(phenylhydrazone) (L), of the formula [CuL2]Br2are presented. In the reaction of warm MeOH solutions ... -
Synthesis and structure of cobalt(II) complex with 2,6-diacetylpyridine-bis(phenylhydrazone)
(University thought - Publication in Natural Sciences, 2018-10)The molecular and crystal structure of a newly synthesized Co(II) complex with 2,6-diacetylpyridine bis(phenylhydrazone) (L), of the formula [CoL2]I2 are described. The reaction of warm EtOH solutions of the ligand, ... -
Reactions of copper(II) bromide with 2,6-diacetylpyridine bis(phenyl-hydrazone) (L)-molecular and crystal structure of L and its mixed-valence complex [CuIIL2][CuI2Br4]
(Journal of the Serbian Chemical Society, 2022)Utilizing X-ray crystallography, the crystal and molecular structures of 2,6-diacetylpyridine bis(phenylhydrazone) (L) were determined. The energetics of the intermolecular interactions in the crystal structure were assessed ... -
First cobalt complexes with methyl pyruvate semi/thiosemicarbazone - synthesis, physico-chemical and structural characterization
(Journal of the Serbian Chemical Society, 2020)In the reaction of acetone solutions of CoX2∙nH2O (X = Cl, Br) with methyl pyruvate semi/thiosemicarbazone (Hmps, Hmpt) the first Co(II) complexes with these ligands, i.e., [Co(Hmps)(H2O)X2] (X = Cl (1), Br (2)), ... -
Synthesis and crystal structure of copper(II) complexes with pyridoxal S-methylisothiosemicarbazone bearing a new coordination mode
(Journal of the Serbian Chemical Society, 2019-01)The reaction of copper(II) nitrate and pyridoxal S-methylisothiosemicarbazone (PLITSC) in the presence of ammonium thiocyanate resulted in the formation of two types of complexes. A dimeric complex of the formula ... -
Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH2PO4 + (1 − y)KH2PO4}(aq) System at T = 298.15 K
(Journal of Solution Chemistry, 2019-03)Isopiestic measurements have been made for aqueous mixtures of NaH2PO4 and KH2PO4 at T = (298.15 ± 0.01) K, at NaH2PO4 ionic strength fractions y = (0, 0.19108, 0.38306, 0.58192, and 1), assuming that both ... -
Innovative environmentally friendly technology for copper(II) hydroxide production
(Hemijska Industrija, 2018)The innovative laboratory procedure for the synthesis of copper(II) hydroxide in the form of the aqueous suspension was developed. The reaction mechanism consists of the reaction between copper(II) sulphate pentahydrate ... -
Nonlinear superharmonic resonance analysis of a nonlocal beam on a fractional visco-Pasternak foundation
(Proceedings of the Institution of Mechanical Engineers. Part C: Journal of Mechanical Engineering Science, 2020-07)This paper investigates the dynamic behaviour of a geometrically nonlinear nanobeam resting on the fractional visco-Pasternak foundation and subjected to dynamic axial and transverse loads. The fractional-order governing ... -
Nonlinear Vibration of a Nonlocal Functionally Graded Beam on Fractional Visco-Pasternak Foundation
(Nonlinear Dynamics, 2022)This paper investigates the nonlinear dynamic behavior of a nonlocal functionally graded Euler–Bernoulli beam resting on a fractional visco-Pasternak foundation and subjected to harmonic loads. The proposed model captures ... -
Effect of temperature and exploitation time on tensile properties and plain strain fracture toughness, KIc, in a welded joint
(Procedia Structural Integrity, 2018)Effect of temperature and exploitation time on resistance to brittle fracture of welded joint constituents of new and 40 years exploited low-alloyed Cr-Mo steel A-387 Gr. B has been analysed. The plane strain fracture ... -
Evaluation of heating efficiency and thermal comfort in special purpose vehicle cabins
(Thermal Science, 2021)The paper presents the integrated application of two methods during testing HVAC system efficiency in the cabins of HUMMER М1151A1 and OAR 1RL-128D off-road vehicles. Spatial measurements of change in air temperature per ... -
Assessment of Probability of Gear Tooth Side Wear of a Planetary Gearbox
(TEHNIČKI VJESNIK-TECHNICAL GAZETTE, 2020-04)Gear tooth side wear in planetary gearboxes represents one of the main reasons for damage occurring in these gears. Wear magnitude is unpredictable and depends on temperature, lubrication, load, material and other random ... -
The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints
(Materials, 2022-03)This paper presents the analysis of the behavior of welded joints made of 9–12% Cr-Mo steel SA-387 Gr. 91. The successful application of this steel depends not only on the base metal’s (BM) properties but even more on ... -
Safety time in critical gap of left turn manoeuvre from priority approach at TWSC unsignalized intersections
(PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2018-09)Before the left turn manoeuvre from priority approach at TWSC unsignalized intersection, the driver estimates the interval occurring in the conflict flow and chooses the one which is most acceptable for him. The circumstances ... -
Early cherry fruit pathogen disease detection based on data mining prediction
(COMPUTERS AND ELECTRONICS IN AGRICULTURE, 2018-07)Today’s world depends largely on information and communication technologies. These technologies are in use in different areas of human life and work. Each day, more examples of possible application of information and ... -
Data mining based tool for early prediction of possible fruit pathogen infection
(Computers and Electronics in Agriculture, 2018-11)Effective chemical protection of fruit is a complex task which can enable production of healthy food without chemical residues. As food health is a growing global concern, it is important to automate and optimize the fruit ... -
Evaluation of information and communication technology sector in the teaching process and strategic collaboration between universities and industry
(COMPUTER APPLICATIONS IN ENGINEERING EDUCATION, 2019-02)The main purpose of the study was to evaluate the information and communication technology (ICT) sector in the teaching process based on teachers’ attitudes and the strategic collaboration between universities and industry. ... -
Reliability assessment of the single motor drive of the belt conveyor on Drmno open-pit mine
(International Journal of Electrical Power & Energy Systems, 2019-12)Reliable operation of controlled electrical drives is one of the standard requirements set as a part of tender conditions and they must be met when designing technological systems in mining industry. Elements of power ... -
Optical inspection of cutting parts by 3D scanning
(Physica A: Statistical Mechanics and its Applications, 2019-10)In this paper was presented 3D scanning application of dimensional inspection of parts obtained by cutting process. The dimensional and geometric deviations of cylindrical shoots of aluminum alloy parts, machined by applying ... -
Characterization of the tailing waste deposit “Gornje Polje”
(Optik - International Journal for Light and Electron Optics, 2020-05)Tailing waste is heterogeneous material, with a great variation in chemical and physical properties. There is a need for its characterization for the purpose of valuable metal recycling, but also for its environmental ...