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Assessment of sampling and chemical analysis of waste printed circuit boards from weee: gold content determination
(Savez inženjera metalurgije Srbije, Beograd, 2019)
Waste printed circuit boards (WPCBs) from discarded mobile phones and smartphones are considerably heterogeneous materials with a high gold content (approx. 490 grams per ton). The aim of our chemical analysis of samples ...
Failures of brass condenser tubes
(Society for Structural Integrity and Life, Institute for Material Testing, 2016)
Causes of failure of brass condenser tubes (CuZn28Sn1) in a thermal power plant in Serbia are analysed. Results of testing by Fourier transformed infrared spectroscopy (FTIR) have indicated the presence of ammonia and ...
The Dependence of the Cost of Capital on Degree of Diversification
(Economic Laboratory Transition Research Podgorica-Elit, Podgorica, 2018)
The subject of this paper are theoretical and methodological aspects of determining the cost of capital on the example of two companies from the Energoprojekt system. The goal is to point out the most significant problems ...
LT - Contradiction Matrix
(Fme Transactions, 2021)
Altschuller's Contradiction Matrix and Bartini-Kuznetsov's LT - Table represent two different tools for solving inventive problems based on the same dialectical principle. It starts from the premise that there are ...
Examination of the effectiveness of filtering half masks protection at various flow rates of aerosol contaminants / Ispitivanje efikasnosti zaštite filtrirajućih polumaski pri različitim protocima aerosolnih kontaminanata
(Engineering Society for Corrosion, Belgrade, Serbia, 2017)
The possibility of air contamination by biological agents, by natural or artificial way, requires the improvement and use of different means for respiratory protection. The paper presents comparative filtration efficiency ...
The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts
(Univerzitet u Kragujevcu - Fakultet inženjerskih nauka, Kragujevac, 2015)
During the coal pulverizing, the working parts of the ventilation mill are being worn by the sand particles. For this reason, the working parts are usually protected with materials resistant to wear (hardfaced/thermal ...
Structural properties of carbon microspheres obtained by hydrothermal treatment of fructose / Strukturne osobine mikrosfera ugljenika dobijenih hidrotermičkim tretmanom fruktoze
(Engineering Society for Corrosion, Belgrade, Serbia, 2015)
A carbon-rich solid product has been synthesized by hydrothermal treatment from fructose with HNO3 at temperature of 140°C. The concentration of the precursor was changed in order to investigate how its change influences ...
Production of rubber plasticizers based on waste PET: Techno-economical aspect / Sinteza plastifikatora iz otpadnog PET-a za primenu u gumenim proizvodima - tehno-ekonomska analiza
(Engineering Society for Corrosion, Belgrade, Serbia, 2017)
Production of rubber plasticizers, based on waste poly(ethylene terephthalate) (PET), and economic effectiveness of developed technologies are presented and discussed. Waste PET glycolyzates, named diisononyl terephthalate(DINTP), ...
Numerical simulation of temperature field in the vertical bridgman method crystal growth
(Savez inženjera metalurgije Srbije, Beograd, 2015)
The mathematical model for heat transfer during the Bridgeman crystal growth, using the finite element method and the obtained result are presented. Some modifications to the method were introduced in order to incorporate ...
Anti-tarnish silver alloys in system ag-cu-zn-si with the addition of aluminum
(Association of Metallurgical Engineers of Serbia AMES, 2018)
This paper presents investigations of aluminum addition influence on the corrosion characteristics of the sterling silver Ag-Cu-Zn-Si alloys. The procedure for obtaining Ag-Cu-Zn-Al-Si alloys in small ranges of predefined ...