Претраживање
Приказ резултата 11-20 од 191
Optimization of the procedure for the synthesis of calcium and sodium citrate in laboratory and semi-industrial conditions / Optimizacija postupka sinteze kalcijum i natrijum-citrata u laboratorijskim i poluindustrijskim uslovima
(Association of Chemical Engineers of Serbia, 2009)
The aim of this investigation is the development of the optimal laboratory procedure for the synthesis of calcium and sodium citrate and the application of obtained results in a project for a semi-industrial installation ...
Synthesis of B6 vitamin / Sinteza vitamina B6
(Association of Chemical Engineers of Serbia, 2009)
The importance of vitamin B6 has been known since its discovery in the 1940's. Chemical tests, elestrometric titration determinations, and absorption spectrum studies showed that this vitamin exists in three major chemical ...
Silver deposition on chemically treated carbon monolith / Izdvajanje srebra na površini hemijski tretiranog karbon monolita
(Association of Chemical Engineers of Serbia, 2009)
Carbon monolith was treated with HNO3, KOH and H2O2. Effects of these treatments on the surface functional groups and on the amount of silver deposited on the CM surface were studied by temperature programmed desorption ...
The influence of the parameters of lost foam process on the quality of aluminum alloys castings / Uticaj parametara lost foam procesa na kvalitet odlivaka legura aluminijuma
(Association of Chemical Engineers of Serbia, 2010)
This paper presents the research results of application of Lost foam process for aluminum alloys castings of a simple geometry. The process characteristic is that patterns and gating of moulds, made of polymers, stay in ...
Influence of current and temperature on discharge characteristics of electrochemical nickel-cadmium system / Uticaj struje i temperature na karakteristike pražnjenja elektrohemijskog nikal-kadmijum sistema
(Association of Chemical Engineers of Serbia, 2010)
The paper elaborates determination of characteristic values in the discharging process of non-hermetic nickel-cadmium galvanic battery with nominal voltage Un = 60 V and nominal capacity qn = C5 = 190 A h and its dependence ...
Influence of the way of synthesis of poly(methyl methacrylate) in the presence of surface modified TiO2 nanoparticles on the properties of obtained nanocomposites / Uticaj načina sinteze poli(metil metakrilata) u prisustvu površinski modifikovanih TiO2 nanočestica na svojstva dobijenih nanokompozita
(Association of Chemical Engineers of Serbia, 2010)
Incorporation of inorganic nanoparticles can significantly affect the properties of the polymer matrix. The properties of polymer nanocomposites depend on the type of incorporated nanoparticles, their size and shape, their ...
Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes / Organofosfatni insekticidi - toksični efekti i bioanalitički testovi za evaluaciju toksičnosti tokom procesa degradacije
(Association of Chemical Engineers of Serbia, 2013)
Organophosphorus insecticides have been the most applied group of insectcides for the last two decades. Their main toxic effects are related to irreversible inactivation of acetylcholinesterase (AChE). Actually, they ...
Uniaxial tension of drying sieves / Jednoosno zatezanje sušnih sita
(Association of Chemical Engineers of Serbia, 2013)
Although the literature contains numerous studies that have been developed to describe the nonlinear behavior of drying sieves operation, there are no papers that report deeper investigation of the drying sieve behavior ...
Thermal resistance testing of standard and protective filtering military garment on the burning napalm mixture / Testiranje termičke otpornosti standardne i filtrirajuće zaštitne vojničke uniforme na goruću napalm smešu
(Association of Chemical Engineers of Serbia, 2013)
Fires are an accompanying manifestation in modern weaponry use and in various accidents in peacetime. The standard military uniform is a primary barrier in protection of a soldier's body from all external influences, ...
Development directions of packaging made from polymer materials / Pravci razvoja ambalaže od polimernih materijala
(Association of Chemical Engineers of Serbia, 2011)
World packaging market achieves turnover of about $620 billion per year with one third of this amount being associated with packaging made from polymer materials. It is expected that this kind of packaging consumption will ...