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Evaluation of acid mine drainage kinetics in the lead-zinc mine
(Arabian Journal of Geosciences, 2020-05)
In this paper the comparative results of on-site analysis and modelling of the mechanisms and kinetics of the mining waters in the ore deposit Crnac are presented. The research process included hydrogeology explorations ...
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 ...
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 ...
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)), ...
Design and synthesis of novel ferrocene-quinoline conjugates and evaluation of their electrochemical and antiplasmodium properties
(European Journal of Medicinal Chemistry, 2020-02)
The tropical disease malaria is responsible for more than 400,000 deaths annually, especially in Southeast Asia and Africa. Although the number of malaria cases is declining, there still is an urgent need for novel ...
Synthesis and structural characterizations of novel atropoisomeric ferrocene-containing six-membered cyclic ureas
(Polyhedron, 2020-02)
The stereochemical phenomenon that arises from hindered rotation around bonds in nonplanar molecules is termed the atropoisomerism. During our previous work we noted the presence of this kind of isomerism in 1-aryl-4-fer ...
Electrochemical characterization and estimation of DNA-binding capacity of a series of novel ferrocene derivatives
(Bioelectrochemistry, 2020-04)
The synthesis of a series of methyl 2-alkyl-5-aryl-4-ferrocenoylpyrrolidine-2-carboxylates has been achieved by [3 + 2] dipolar cycloaddition of azomethine ylides to acryloylferrocene. The electrochemical properties of ...
Synthesis and Electrochemical Estimation of DNA-Binding Capacity of Novel Ferrocene-Containing Pyrrolidines
(The Electrochemical Society, 2020-01)
The design, synthesis, spectral and electrochemical characterization of a series of novel pyrrolidine derivatives have been described. The synthesis was achieved by 1,3-dipolar cycloaddition of azomethine ylides and ...
Performance Analysis of an IEEE 802.15.4 Network Operating Under κ–μ Fading, Interference and AWGN
(Iranian Journal of Science and Technology - Transactions of Electrical Engineering, 2020-03)
IEEE 802.15.4 standard is widely used in the field of low-power, low-cost and low-bit rate communications. In this paper, we analyze performance of an IEEE 802.15.4 network operating in 2450 MHz ISM (Industry, Science and ...
New Eco-Friendly Xanthate-Based Flotation Agents
(Minerals, 2020-04)
An optimal laboratory two-step procedure was developed for sodium/potassium O-alkyl carbonodithioate (sodium/potassium alkyl xanthates) production in the form of aqueous solutions. Sodium isopropyl xanthate (Na-iPrX), as ...