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Приказ резултата 21-30 од 82
Significance of cracks in the heat-affected-zone of steels for elevated temperature application / Značaj prslina u zoni uticaja toplote čelika za povišene temperature
(Society for Structural Integrity and Life, Institute for Material Testing, 2008)
Damage and failure of welded joints are classified according to the crack position. Type IV cracking occurs in welded joints in creep-resistant steels, due to enhanced rate of creep void formation in the presence of coarse ...
Adsorption of itaconic acid from aqueous solutions onto alumina / Adsorpcija itakonske kiseline iz vodenih rastvora na aluminijum-oksidu
(Serbian Chemical Society, Belgrade, 2008)
Itaconic acid, IA (C5H6O4), was investigated as a potential flocculant for the aqueous processing of alumina powders. The adsorption of IA, as a function of its concentration and pH value of the solution, onto the alumina ...
Hysteretic behavior modeling of elastoplastic materials / Modeliranje histerezisnog ponašanja elastoplastičnih materijala
(Serbian Society of Mechanics & Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade, 2008)
In the present paper the Preisach model of hysteresis is applied to model cyclic behavior of elasto-plastic material. Rate of loading and viscous effects will not be considered. The problem of axial loading of rectangular ...
The possibilities of waste waters and waste processing in industry of fruit processing and fruit juices production / Mogućnosti obrade otpadnih voda i otpada u industriji prerade voća i proizvodnje voćnih sokova
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2008)
The basic characteristics of technological waste waters and industrial waste of agricultural industry, as well as of industry of fruit processing and production of juices, are high values of organic contamination and ...
Immobilization of lipase on sepabeads and its application in pentyl octanoate synthesis in a low aqueous system / Imobilizacija lipaze na komercijalni epoksidni nosač za sintezu pentil-oktanoata u mikrovodenom sistemu
(Faculty of Technology, Novi Sad, 2008)
The object of the study was to investigate the process conditions relevant for the pentyl octanoate production with the lipase from Candida rugosa immobilized on Sepabeads EC-EP carrier. This is an epoxide-containing ...
The Antifungal Activity of Corona Treated Polyamide and Polyester Fabrics Loaded with Silver Nanoparticles
(Astronomical Observatory, Belgrade, 2008)
This study is aimed to highlight the possibility of using the corona treatment for fiber surface activation that can facilitate the loading of silver nanoparticles from colloids onto the polyester and polyamide fabrics and ...
Semi-interpenetrating polymer networks of chitosan and poly(ethylene glycol) / Semi-interpenetrirajuće mreže hitozana i poli(etilen glikola)
(Association of Chemical Engineers of Serbia, 2008)
Chitosan is a natural polycationic polymer that possesses useful properties such as bioactivity, biocompatibility, non-toxicity and non-antigenicity. On the other hand, its mechanical properties are not good for some ...
Overhaul and reconstruction of an autoclave / Sanacija i rekonstrukcija autoklava
(Society for Structural Integrity and Life, Institute for Material Testing, 2008)
The project of overhaul and redesign of autoclaves, a substantial part of coal drying equipment is realized at the requirement of Kolubara Prerada-Vreoci. Autoclaves operate under pressure at elevated temperature. Frequent ...
The effects of zeolite and silica gel on synthesis of amylisobutyrate catalyzed by lipase from Candida rugosa / Uticaj zeolita i silika gela na sintezu amil-izobutirata katalizovanu lipazom iz Candida rugosa
(Association of Chemical Engineers of Serbia, 2008)
Lipase-catalyzed synthesis of esters has been widely investigated due to numerous advantages in comparison with the conventional chemical process catalyzed with concentrated acids since use of chemical catalysts leads to ...
Benzylation of N-phenyl-2-phenylacetamide under microwave irradiation / Benzilovanje N-fenil-2-fenilacetamida pomoću mikrotalasnog zračenja
(Serbian Chemical Society, Belgrade, 2008)
N-Phenyl-2-phenylacetamide was alkylated with benzyl chloride in the presence of powdered potassium hydroxide under microwave irradiation in a solvent-free system. The reactions were also performed in the presence of ...