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Приказ резултата 31-40 од 158
Diatoms of the genus Gomphonema Ehrenberg fromthe peat bog at Pešter plateau
(SymBioSE, 2015)
Diatoms are large and diverse group of single-celled algae and are distributed throughout the world in nearly all types of aquatic systems. The main purpose of this study was to collect records on the floristics and ...
Novi model za određivanje promene entropije poluidealnog gasa primenom razlomljene temperaturne funkcije / New model for determining of change entropy of semi-ideal gas by using fractional temperature function
(Academy of Sciences and Arts of the Republic of Srpska, 2014)
Kod poluidealnog gasa, promena entropije ne može se odrediti preko srednjeg specifičnog toplotnog kapaciteta na način kao što se određuje promena unutrašnje energije i entalpije, odnosno razmenjena količina toplote. Uzimajući ...
Grafičko određivanje eksponenta politrope u karakterističnim dijagramima / Graphical determination of polytropic index in characteristic diagrams
(Academy of Sciences and Arts of the Republic of Srpska, 2014)
U ovom radu, koristeći postojeća znanja iz termodinamike, prikazana su tri načina grafičkog određivanja eksponenta politrope, kao i klasični analitički način.U radu smo koristili karakteristične dijagrame p-v i T-s i u ...
Određivanje brzine korozije austenitnih čelika Č4571 i Č4580 u rastvorima kalcijum hipohlorita / Determination of corrosion rate austentic steels S4571 and S4580 in a solution of calcium-hypochlorite
(Academy of Sciences and Arts of the Republic of Srpska, 2014)
U ovom radu dati su rezultati ispiotivanja korozione otpornosti čelika Č4571 i Č4580 u rastvorima kalcijum-hipohlorita. Korištene su elektrohemijske metode: numerička metoda linearne polarizacije i metoda polarizacionog ...
Heat Utilization of Distiller Liquor by using the High Temperature Heat Pump
(Zagreb : Udruga za zaštitu okoliša i održivi razvoj RIO, 2015)
Proces proizvodnje kalcinisane sode, kao tipičan primjer procesa bazne hemijske industrije, je veliki potrošač energije a naročito toplotne energije. Pored toga, proces proizvodnje kalcinisane sode je i veliki rasipnik te ...
How do newly-described diatom species affect biomonitoring? – An example of Gomphonema paratergestinum vs. G. tergestinum
(Berlin : Botanic Garden and Botanical Museum, Berlin Freie Universität Berlin, 2018)
Over the past decade a great number of new diatom taxa was described, as well as re-definitions and delimitations of taxa from different species complexes have been performed. The reasons for the constant increase in the ...
Diatoms diversity and ecological status of the Đetinja River (Serbia)
(Macedonian Ecological Society, 2016)
The Đetinja River is located in western Serbia and it was dammed for creating an artificial Lake Vrutci. Epilithic samples were collected during 11 season (September, October and December 2014, March, April, May, June, ...
Verification of McCabe-Thiele method and determination of basic parameters of distillation by using software packages MATLAB and ChemCAD for separating of mixture n-heptanen-octane
(Third Conference of Young Chemists of Serbia, Belgrade, 2015)
This paper shows the verification of the graphic McCabe-Thiele method for separating the mixture n-heptane-n-octane. Verification of McCabe-Thiele method was performed by analytical calculations system and applying SHORTCUT ...
On some other preferred method for optimizing the welded joint / O jednoj pogodnoj metodi za optimizaciju zavarenog sklopa
(Savez inženjera i tehničara Srbije, Beograd, 2016)
The paper shows an example of performed optimization of sizes in terms of welding costs in a characteristic loaded welded joint. Hence, in the first stage, the variables and constant parameters are defined, and mathematical ...
Analysis, Modeling and Design of Binary Distillation Systems / Modelovanje, analiza i dizajn destilacionih sistema
(Zvornik : Faculty of Technology, 2017)
The analysis and sizing of the distillation column for the separation of n-heptane-n-octane mixture were conducted using a traditional method for modeling and describing distillation systems, combined with modern software ...