Претраживање
Приказ резултата 21-30 од 41
The influence of the chemical modifications on the AC specific electrical conductivity of the jute woven fabrics
(Belgrade : Institute of Technical Sciences of SASA, 2018)
In order to obtain jute fabrics with high AC specific electrical conductivity, the raw jute
woven fabric was chemically modified. Namely, alkali modification with 17.5% NaOH at
room temperature for 5 and 30 min was ...
Electrophysical properties of nonwoven viscose/polypropylene fabrics
(Skopje : Society of chemists and technologists of Macedonia, 2018)
Textile materials like woven, knitted and nonwoven fabrics are good insulators with very high
electrical resistance. It is known that dielectric properties (effective dielectric permeability, electrical
conductivity, and ...
Whey valorization using transgalactosylation activity of β-galactosidase
(University of Novi Sad, Institute of Food Technology, 2018)
Whey is the most significant by-product from the dairy industry that can cause serious environmental pollution problems. Namely, one of the main whey constituents is lactose, which is responsible for high biological oxygen ...
Adsorptive, catalytic and antimicrobial applications of Serbian natural clinoptilolite
(Lublin University of Technology, Nadbystrzycka 40 20-618 Lublin, 2018)
Clinoptilolite is the most abundant natural zeolite in Serbia, and the Zlatokop deposit (near Vranjska Banja) is the largest deposit. The zeolitic tuff (CT) from Zlatokop contains >70 wt. % clinoptilolite with quartz and ...
Stability of the gold mercaptotriazole complex at pH=4
(Bor : Mining and Metallurgy Institute, 2018)
The objective of this work was to investigate the stability of the gold complex based on
mercaptotriazole in slightly acid media, at pH=4. The gold complex complex was studied by the visual monitoring and electrochemical ...
Influence of the alkali treatment conditions on the chemical composition and capillarity of the jute woven fabrics
(Beograd : Serbian Chemical Society, 2018)
Jute fibers have been subjected to various types of chemical modifications to improve their suitability as textile materials. Among them, the alkali treatments have been widely used as the most direct and ecological chemical ...
Optimization of solid-phase extraction for analysis of artificial sweeteners in water
(Beograd : Srpsko hemijsko društvo, 2018)
After decades of using artificial sweeteners in the food and pharmaceutical industry, their ubiquitous presence in the environment has been determined 1,2. These substances are recognized as emerging pollutants due to ...
CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY
(Bor : Mining and Metallurgy Institute, 2018)
Precise, direct and fast methods for characterization the anodic films still have to be developed, since the conventional methods cannot be accelerated beyond the certain limits. The present work uses a laser desorption/ionization ...
Određivanje odabranih steroida u uzorcima komunalne otpadne vode / Determination of selected steroids in municipal wastewater samples
(Beograd : Srpsko hemijsko društvo, 2018)
Komunalne otpadne vode i efluenti iz postrojenja za prečišćavanje otpadnih voda predstavljaju značajan izvor zagađujućih materija u vodenoj sredini. Studije su pokazale da se steroidna jedinjenja u postrojenjima za tretman ...