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Eliminating the effect of hot spots on underground power cables using cool pavements
(Electrical Engineering, 2019-10-24)
It is well known that hot spots limit the ampacities of underground power cables. There are many commonly applied methods
to control the thermal environment in hot spots of underground power cables. However, applications ...
GA-based approach for optimal placement and sizing of passive power filters to reduce harmonics in distorted radial distribution systems
(Electrical Engineering, 2019-09)
This paper presents a Genetic Algorithm-based approach for optimal placement and sizing of passive power filters to mitigate harmonics in radial distribution systems with linear and nonlinear loads. The problem is formulated ...
A transient thermal model for flat-plate photovoltaic systems and its experimental validation
(ELEKTRONIKA IR ELEKTROTECHNIKA, 2019-04)
This paper describes a transient thermal model that accurately predicts the temperature of the open-rack mounted photovoltaic (PV) modules under varying atmospheric conditions. The PV module temperature is predicted by ...
Effect of Chemical Composition on the Microstructure, Hardness and Electrical Conductivity Profiles of the Ag-Bi-Ge Alloys
(Materials Research, 2019-10)
Microstructure, hardness and electrical properties of the selected ternary Ag-Bi-Ge alloys were investigated in this study. Isothermal sections of the Ag-Bi-Ge system at 25, 100 and 500 °C have been extrapolated using ...
Effect of Chemical Composition on the Microstructure and Properties of the Ag-Ga-Ge Alloys
(Journal of Materials Engineering and Performance, 2019-05)
This study presents a comparison of thermodynamically calculated phase compositions of Ag-Ga-Ge alloys at fixed temperatures with phase analysis results of alloys annealed at respective temperatures. Three isothermal ...
Experimental investigation and thermodynamic calculations of the Bi-Ni-Pb phase diagram
(Journal of Mining and Metallurgy, 2019-04)
The article presents an experimental study of a phase diagram of a ternary Bi-Ni-Pb system using differential thermal analysis (DTA), scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), and X-ray ...
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. ...
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 ...
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 ...
Synthesis of novel multi-functionalized pyrrolidines by [3 + 2] dipolar cycloaddition of azomethine ylides and vinyl ketones
(Monatshefte fuer Chemie/Chemical Monthly, 2019-02)
An efficient and easy synthetic route to substituted pyrrolidine derivatives has been established through [3 + 2] dipolar cycloaddition of vinyl ketones and azomethine ylides. The reactions proceed smoothly, under mild ...