Pretraživanje
Prikaz rezultata 41-50 od 1246
Influence of pin geometry on mechanical and structural properties of butt friction stir welded 2024-T351 aluminum alloy / Uticaj geometrije trna alata na mehaničke i strukturne karakteristike sučeonog spoja aluminijumske legure 2024-T351 zavarenog postupkom FSW
(Association of Chemical Engineers of Serbia, 2015)
The aim of this work was to investigate the combined effect of small difference in pin geometry, together with rotation and welding speed on the weldability, mechanical and structural properties of FSW 2024-T351 Al plates. ...
Iron-chromium-carbon-vanadium white cast irons: The microstructure and properties / Železo-hrom-ugljenik-vanadijum bela livena gvozđa - mikrostruktura i svojstva
(Association of Chemical Engineers of Serbia, 2014)
The as-cast microstructure of Fe-Cr-C-V white irons consists of M7C3 and vanadium rich M6C5 carbides in austenitic matrix. Vanadium changed the microstructure parameters of phase present in the structure of these alloys, ...
Dependence of Structural Characteristics of Polyamide Textured Yarns on the Parameters of the False Twist Yarn Texturing Process
(Inst Chemical Fibres, Lodz, 2017)
In the false twist texturing process, due to the action of mechanical forces and heat, a disorientation of structural elements happens at all levels of the supramolecular structure. These changes are related to changes in ...
Optimization of electrochemical decolorization of certain arylazo pyridone dyes
(Srpsko hemijsko društvo, Beograd, 2014)
Electrocatalytic decolorization of arylazo pyridone dyes was investigated in the presence of sodium chloride using a DSA Ti/PtOx electrode in dilute sodium hydroxide. The decolorization could be attributed to the indirect ...
Modeling of density and calculations of derived volumetric properties for n-hexane, toluene and dichloromethane at pressures 0.1-60 MPa and temperatures 288.15-413.15 K
(Srpsko hemijsko društvo, Beograd, 2015)
Densities data of n-hexane, toluene and dichloromethane at temperatures 288.15-413.15 K and at pressures 0.1-60 MPa, determined in a previous article, were fitted to the modified Tait equation of state. The fitted ...
Two-Stage Fermentation for 2-Ketogluconic Acid Production by Klebsiella pneumoniae
(Korean Soc Microbiology & Biotechnology, Seoul, 2014)
2-Ketogluconic acid production by Klebsiella pneumoniae is a pH-dependent process, strictly proceeding under acidic conditions. Unfortunately, cell growth is inhibited by acidic conditions, resulting in low productivity ...
Oscillatory flow chemical reactors / Hemijski reaktori sa oscilirajućim tokom fluida
(Association of Chemical Engineers of Serbia, 2014)
Global market competition, increase in energy and other production costs, demands for high quality products and reduction of waste are forcing pharmaceutical, fine chemicals and biochemical industries, to search for radical ...
Enhanced Arsenic Sorption by Hydrated Iron (III) Oxide-Coated Materials-Mechanism and Performances
(Water Environment Federation, 2011)
Mechanism and performances of arsenic(III) [As(III)] and arsenic(V) [As(V)] sorption onto hydrated iron(III) oxide (HFO)-coated materials were investigated at neutral pH where arsenic occurs in both molecular and ionic ...
Trans- and cis-resveratrol concentration in wines produced in Serbia / Koncentracija trans- i cis-rezveratrola u vinima proizvedenim u Srbiji
(Serbian Chemical Soc, Belgrade, 2008)
Resveratrol, which occurs in two isomeric forms, trans and cis, is a phytoalexin with numerous pharmacological activities, such as anti-cancer, antiviral, neuroprotective and anti-aging. Red wine is the main source of the ...
Micro-electro-mechanical systems (MEMS): Technology for the 21st century / Mikro-elektro-mehanički sistemi (MEMS) - tehnologija za 21. vek
(Association of Chemical Engineers of Serbia, 2014)
Micro-electro-mechanical systems (MEMS) are miniaturized devices that can sense the environment, process and analyze information, and respond with a variety of mechanical and electrical actuators. MEMS consist of mechanical ...