Pretraživanje
Prikaz rezultata 231-239 od 239
Identification of methomyl photocatalytic degradation products
(Belgrade : Society of Physical Chemists of Serbia, 2016)
Photocatalytic degradation of the methomyl pesticide in aqueous suspension
of TiO2 using an Osram ultra-vitalux® lamp (315-400 nm) was investigated.
The effect of parameters such as initial concentration of catalyst, ...
Raspodela odabranih lekova i pesticida u sistemu voda-sediment / Distribution of selected pharmaceuticals and pesticides in water-sediment system
(Beograd : Srpsko hemijsko društvo, 2015)
Cilj ovog rada bio je ispitivanje načina adsorpcije i raspodele odabranih lekova i pesticida između vodene faze i sedimenta, kao i određivanje stepena adsorpcije i desorpcije na sedimentu reke Dunav. Rezultati adsorpcije ...
Primena instrumentalnih metoda na analizu uzoraka vode / Application of instrumental methods in analysis of water samples
(Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Društvo za procesnu tehniku, 2019)
Zagađenje vode je veliki problem čovečanstva. Kako bi se sprečila kontaminacija vodenih
sistema neophodno je kontrolisati količinu zagađujućih materija u njima i ispoštovati uredbe o graničnim vrednostima takvih polutanata ...
THE INFLUENCE OF THE ALKALI TREATMENT ON THE PROPERTIES OF JUTE WOVEN FABRICS / UTICAJ ALKALNOG TRETMANA NA SVOJSTVA TKANINA JUTE
(Beograd : The College of Textile Design, Technology and Management, 2018)
In this investigation, jute woven fabric has been alkali treated with NaOH solution (1%, 5%, 10% and 17.5%) at room temperature for different periods of time (5 and 30 min). The influence of different treatment conditions ...
Nanocomposite Hydrogels Based on Poly(vinyl alcohol) and Chitosan with Silver Nanoparticles and Graphene Aimed for Wound Dressing Applications
(Belgrade : Serbian Academy of Sciences and Arts, 2018)
In this work, we prepared hydrogels based on PVA, CHI and Gr, and used them
as a porous matrix to synthesize silver nanoparticles by an in situ electrochemical
method [3,4]. The hydrogels were prepared from PVA/CHI/Gr ...
Influence of azo dye structure on photovoltaic characteristics of dye sensitized solar cells
(Beograd : Srpsko hemijsko društvo, 2018)
Dye-sensitized solar cells (DSSC), as a main competitor to a silicon solar cells, present
a new technology which has been in constant development for two decades. In this paper,
six azo dyes based on benzoic and cinnammic ...
DIELECTRIC LOSS TANGENT OF ALKALI TREATED JUTE WOVEN FABRICS: EFFECT OF HEMICELLULOSES CONTENT / TANGENS DIELEKTRIČNIH GUBITAKA ALKALNO TRETIRANIH TKANINA OD JUTE: EFEKAT SADRŽAJA HEMICELULOZA
(Belgrade : Union of Engineers and Technicians of Serbia, 2019)
The jute woven fabric was treated with sodium hydroxide at room
temperature for 5, 30 and 45 min in order to obtain jute fabric with different
hemicelluloses content and to study their influence on the dielectric loss ...
Kompleksi derivata izatina i njihovo antimikrobno dejstvo / The complexes of isatin derivatives and their antimicrobial acitivity
(Beograd : Srpsko hemijsko društvo = Serbian Chemical Society, 2018)
Derivati izatina su se u novije vreme pokazali kao jedinjenja korisna u farmakologiji, jer
ispoljavaju širok spektar dejstava kao sto su antivirusna, antitumorna, antibakterijska,
antituberkulozna, antigljivična, ...
Assessment of Safety Valve Springs Failure
(Materials Research Society of Serbia, Srbija, 2011)
The aim was to investigate the cause of failure of as-received ultra-high strength steel springs,
which were deposite-coated. The qualitative analysis of surrounding environment was performed.
Springs were visually and ...