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Prikaz rezultata 21-30 od 95
The influence of silver, copper and zinc ions on the properties of bioceramic materials based on calcium phosphate / Uticaj jona srebra, bakra i cinka na svojstva biokeramičkih materijala na bazi kalcijum-hidroksiapatita i kalcijum-fosfata
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2016)
Calcium phosphates constitute the inorganic part of bones and teeth of mammals. This fact is well known and has encouraged researchers to apply hydroxyapatite (HAp, Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP, Ca3(PO4)2), ...
Synthesis and characterization of carbon materials as titanium dioxide carrier for removal of the selected organic pollutants from water / Sinteza i karakterizacija ugljeničnih materijala kao nosača titan-dioksida za uklanjanje odabranih organskih zagađujućih materijala iz vode
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2018)
The main objective of this work was to develope appropriate preparation method in order to obtain TiO2/carbon composites with the highest efficiency in removal of organic pollutants from the water. Carbon monolith and ...
The synthesis of fatty acid methyl esters from waste lard by homegeneously and heterogeneously catalyzed methanolysis / Sinteza metil estara masnih kiselina otpadne svinjske masti primenom homogeno i heterogeno katalizovane metanolize
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2016)
In this doctoral dissertation the methanolysis of waste lard from piglet roasting in the presence of KOH, CaO or quicklime at moderate temperatures (below the boiling point of methanol) and the molar ratio of methanol:fatty ...
Surface modification of cellulose fibers using dielectric barrier discharge / Modifikovanje površine celuloznih vlakana primenom dielektričnog barijernog pražnjenja
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2015)
In the theoretical part of doctoral dissertation, the most significant literature data concerning cellulose structure and properties have been systematically reviewed. Special attention has been given to the possibilities ...
Structure and properties of Al-Mg alloy sheets produced by accumulative roll bonding. / Struktura i svojstva višeslojnih Al-Mg traka dobijenih hladnim valjanjem
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2018)
Influence of accumulative roll bonding (ARB) and conventional cold rolling (CR) on the mechanical and corrosion properties of an AA5083 type alloy with 4.2 wt% Mg and a modified alloy with 5.1 wt% Mg and addition of 0.5 ...
Synthesis and characterization of hydrogels based on 2-hydroxyethyl acrylate and itaconic acid for controlled release of therapeutically active metal ions аpplication. / Sinteza i karakterizacija hidrogelova na bazi 2-hidroksietil akrilata i itakonske kiseline za primenu u kontrolisanom otpuštanju terapeutski aktivnih jona metala
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2016)
In this doctoral dissertation, the novel polymeric materials were synthesized as carriers for the incorporation and controlled release of therapeutically active metal ions, for the application in wound treatment and soft ...
Synthesis and characterisation of tin and tungsten sulfide powders for application in tribological materials / Sinteza i karakterizacija prahova sulfida kalaja i volframa za primenu u tribološkim materijalima
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2020)
This PhD thesis presents the process of synthesis of tin and tungsten sulfides powders for application in tribological materials by determining the optimal parameters of the synthesis process based on the results of the ...
Local approach to ductile fracture of low steel welded joints / Lokalni pristup žilavom lomu zavarenih spojeva niskolegiranog čelika
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2012)
The subject of this dissertation is analysis of ductile fracture initiation and stable crack growth by ductile fracture mechanism in low alloyed steel and welded joints. The analysis is conducted using local approach to ...
Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure / Sinteza i karakterizacija materijala nastalih modifikacijom zeolita (klinoptilolita) i mikroporoznih fosfata sa strukturom zeolita
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2015)
In the first part of the dissertation, the possibility of modifying the zeolitic tuff from the mine Zlatokop (near Vranjska Banja) was investigated in order to obtain new adsorbents. The second part presents the possibility ...
Extraction from curry plant (Helichrysum italicum) and impregnation of solid carries with the extract using supercritical carbon dioxide / Ekstrakcija iz smilja (Helichrysum italicum) i impregnacija čvrstih nosača ekstraktom primenom natkritičnog ugljenik(IV)-oksida
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2017)
Curry plant (Helichrysum italicum (Roth) G. Don fil., Asteraceae) is Mediterranean plant, known for its traditional use in treatment of inflammatory processes mostly on skin and in the digestive system. This plant presents ...