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Characteristics of a doubly-fed asynchronous generator applied in wind turbines
(Ekonomika Poljoprivrede, 2018-01)A mathematical model of a doubly-fed asynchronous generator is defined in the paper, using spatial vector theory, in relation to the reference axis associated with the stator. Expressions for characteristic quantities ... -
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 ... -
Comparison of Box-Behnken, Face Central Composite and Full Factorial Designs in Optimization of Hempseed Oil Extraction by n-Hexane: a Case Study
(PERIODICA POLYTECHNICA CHEMICAL ENGINEERING, 2018-01)Statistical multivariate methods like Box-Behnken, face central composite and full factorial designs (BBD, FCCD and FFD, respectively) in combination with the response surface methodology (RSM) were compared when applied ... -
Concept of reconstruction and modernization of railway tracks of route 9a – doboj-tuzla-brčko section
(CETRA- 5th International Conference on Road and Rail Infrastructure, 2018-05)War developments in the mid-1990s, economic crisis and the lack of funds to reconstruct railway infrastructure and the fleet have led to the situation that railway traffic in Bosnia and Hercegovina (BiH) goes at low ... -
Controlling the thermal environment of underground cable lines using the pavement surface radiation properties
(IET Generation, Transmission & Distribution, 2018-05-03)The main purpose of this study is to show how the emissivity and absorptivity of a pavement surface aboveunderground cables affect their ampacity. The use of cool pavements whose surfaces absorb less heat ... -
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 ... -
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 ... -
Design of IIR Multiple-Notch Filters with Symmetric Magnitude Responses About Notch Frequencies
(Circuits, Systems, and Signal Processing, 2018-05)A novel all-pass-based infinite impulse response (IIR) digital multiple-notch filter design method is presented in this paper. The proposed method ensures that, for an arbitrary pass-bands ripple value, specifications ... -
E-learning engineers based on constructive and multidisciplinary approach
(Computer Applications in Engineering Education, 2019-09)In this study, we applied constructive approach to education supplemented with the innovation cycle approach. The main goal is to develop the innovative ideas from a clear start up to the implementation phase. Since multiple ... -
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 ... -
Economy management with a focus to the productivity
(Mining and Metallurgy Engineering Bor, 2018)Knowing the essence of productivity and its importance for the economy of the company, but also for the national economy is a prerequisite for successful management in these spheres, as well as the implementation of ... -
The effect of aging of surface non-metallic coatings on the ampacity of medium voltage rectangular bus bars
(The 7th Virtual International Conference on Science, Technology and Management in Energy (eNergetics 2021), 2021-12)There are two major types of non-metallic coatings for bus bars: oil-and epoxy-based coatings. The oil-based coatings have a limited lifespan of a few years, while the epoxy-based ones have a lifespan of over ten years. ... -
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 ... -
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, hardness and electrical conductivity profiles of the Bi-Ge-In alloys
(Metallurgical and Materials Engineering, 2020)In this study, the microstructure, hardness,and electrical properties of selected ternary Bi-Ge-In alloys were investigated. Isothermal sections of the Bi-Ge-In system at 25, 200, and 300 °C were extrapolated using ... -
THE EFFECT OF DIFFERENT SKY TEMPERATURE MODELS ON THE ACCURACY IN THE ESTIMATION OF THE PERFORMANCE OF A PHOTOVOLTAIC MODULE
(Technical University of Gabrovo, 2019-11-22)This paper considers the effect of different sky temperature models on the accuracy in the estimation of the performance of an open-rack-mounted photovoltaic (PV) module. It is found that, for the same ambient conditions, ... -
EFFECT OF ILLUMINATION IN CHROMA KEY EFFECT IN THE REALIZATION OF VIRTUAL TELEVISION STUDIO
(SINTEZA, 2018)This paper analyzes the effect of front and back light on the Chroma key effect in a virtual TV studio. The model of the system in which the experiment was realized is given. Different intensity of front and back light ... -
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 ... -
The effect of solar radiation on the ampacity of an underground cable with XLPE insulation
(The 4th Virtual International Conference on Science, Technology and Management in Energy (eNergetics 2018), 2018-10)The main purpose of this paper is to quantify the thermal effect of solar radiation on the ampacity of a low voltage underground cable with cross-linked polyethylene (XLPE) insulation. The quantification was performed for ... -
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 ...