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Prikaz rezultata 31-40 od 89
An investigation of influence of solvent on the degradation kinetics of carotenoids in oil extracts of Calendula officinalis / Ispitivanje uticaja ekstragensa na kinetiku razgradnje karotenoida u uljanim ekstraktima nevena
(Serbian Chemical Society, Belgrade, 2005)
The stability of carotenoids was studied in marigold oil extracts prepared with following solvents: Myritol 312®, paraffin oil, almond oil, olive oil, sunflower oil, grape seed oil, and soybean oil. The concentration of ...
Influence of heat treatment on mechanical and sorptional properties of viscose-based nonwovens
(Niscair, 2005)
The influence of heat treatment on sorptional and mechanical properties of viscose: polypropylene (90:10) blend nonwoven fleeces has been studied. It is observed that the heat treatment improves mechanical properties ...
Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents, Part I: Pyridine mono-carboxylic acids / Ispitivanje reaktivnosti piridin-monokarbonskih kiselina u reakciji sa diazodifenilmetanom u protičnim i aprotičnim rastvaračima. Deo I
(Serbian Chemical Society, Belgrade, 2005)
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method. The values ...
Formation of approximate differential equations for electrical and molar conductivity determinations of sulfuric acid aqueous solution / Formiranje aproksimacionih diferencijalnih jednačina za određivanje električne i molarne provodljivosti vodenog rastvora sumporne kiseline
(Engineering Society for Corrosion, Belgrade, Serbia, 2005)
In this paper formation of linear differential equations for approximate determination of electrical and molar conductivity of sulfuric-acid solutions, has been give.
The synthesis and characterization of 2-mercaptoethyl methacrylate / Sinteza i karakterizacija 2-merkaptoetil metakrilata
(Association of Chemical Engineers of Serbia, 2005)
The synthesis of 2-mercaptoethyl methacrylate from methacrylic acid and 2-mercaptoethanol by etherification using acetyl chloride as catalyst was optimized. The purity of the obtained product was controlled by gas ...
Photo degradation of synthetic dyes under visible and solar light / Fotodegradacija sintetskih boja pomoću vidljive i sunčeve svetlosti
(Association of Chemical Engineers of Serbia, 2005)
The photo degradation of synthetic dyes under visible and solar light as a method for the removal of synthetic dyes from water and wastewater was reviewed. The mechanisms of photo degradation are presented. The influence ...
Production of bioethanol from corn meal hydrolyzates / Proizvodnja bioetanola na hidrolizatima kukuruznog brašna
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2005)
Bioethanol produced from renewable agricultural recourses is currently the most promising biofuel. In a lot of developed countries in Europe and in USA the use of bioethanol as an alternative fuel or a gasoline supplement ...
Obtaining of high quality cellulose from the hemp fibers / Dobijanje visoko kvalitetne celuloze iz vlakana konoplje
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2005)
In recent years growing attention has been paid to production of cellulose from unconventional, annually and renewable plants such as hemp and flax. Lignin and pectin are very important noncellulosic substances occurring ...
Electrodeposition and characterization of Fe-Mo alloys as cathodes for hydrogen evolution in the process of chlorate production / Elektrohemijsko taloženje i karakterizacija Fe-Mo legura kao katoda za reakciju izdvajanja vodonika u industrijskom procesu proizvodnje hlorata
(Serbian Chemical Society, Belgrade, 2005)
Fe–Mo alloys were electrodeposited from a pyrophosphate bath using a single diode rectified AC current. Their composition and morphology were investigated by SEM, optical microscopy and EDS, in order to determine the ...
Corrosion behavior of duplex polyaniline/epoxy coating on mild steel in 3% NaCl / Koroziono ponašanje dvoslojne polianilin/epoksidne prevlake na mekom čeliku u 3% rastvoru NaCl
(Association of Chemical Engineers of Serbia, 2005)
The corrosion behavior and thermal stability of epoxy coatings electrodeposited on mild steel and on mild steel with electrochemically deposited polyaniline (PANI) film were investigated by electrochemical impedance ...