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Приказ резултата 51-60 од 70
On the radius and the relation between the total graph of a commutative ring and its extensions
(Srpska akademija nauka i umetnosti SANU - Matematički institut, Beograd, 2011)
We discuss the determination of the radius of the total graph of a commutative ring R in the case when this graph is connected. Typical extensions such as polynomial rings, formal power series, idealization of the R-module ...
Correlation-regression analysis of modelled chlorine residual's spatial variability in water supply network / Korelaciono-regresiona analiza modelirane prostorne raspodele reziduala hlora u vodovodnoj mreži
(Inženjersko društvo za koroziju, Beograd, 2014)
Residual chlorine ex. concentration of free chlorine disinfection able to carry disinfection in drinking water is an important parameter of drinking water, primarily talking about its bacteriological safety. On the other ...
Corrosion of cannon 75/27, model 1911. déport, from the collection of the Military Museum in Belgrade / Korozija topa 75/27, model 1911. deport iz kolekcije Vojnog muzeja u Beogradu
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2012)
This paper analyzes the state of the French Cannon 75/27 model 1911. Déport made of steel. The amount of non-corroded materials, the presence of cracks and other defects in the cannon were determined by the radiographic ...
Numerical analysis of flexural buckling resistance of non-uniform compression members / Numerička analiza nosivosti neuniformnih pritisnutih elemenata na fleksiono izvijanje
(Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd, 2017)
This paper presents parametric linear-elastic analysis of flexural buckling of idealised non-uniform member and nonlinear analysis of flexural buckling with equivalent imperfections, using software package Abaqus. The ...
Vibration serviceability limit state of pedestrian bridges
(Society for Materials and Structures Testing of Serbia, 2021)
Modern conustructions of pedestrian bridges must satisfy functional and
increasingly complex architectural requirements. In order to achieve the attractive
design of pedestrian bridges, modern constructions generally ...
Stepped spillway flow: Comparison of numerical and scale models / Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2014)
This paper deals with flow modelling of the stepped spillway for the Bogovina dam. The analysis was conducted using three approaches: scalemodelling, empirical equations and numerical modelling. An acceptable agreement was ...
Distribution of chromium, nickel, copper and zinc in the Al Zintan area, northwestern Libya
(Geološki anali Balkanskoga poluostrva, 2018)
Global population is growing rapidly. As a result, increasingly large areas are being settled and farmed. This devastates soils and causes pollution by heavy metals and other components. Heavy metals in the environment ...
On the properties of the concave antiprisms of second sort / O osobinama konkavnih antiprizmi druge vrste
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2013)
The paper examines geometrical, static and dynamic properties of the polyhedral structures obtained by folding and creasing the two-rowed segment of equilateral triangular net. Bases of these concave polyhedra are regular, ...
The pencil of the 4th and 3rd order surfaces obtained as a harmonic equivalent of the pencil of quadrics through a 4th order space curve of the 1st category / Pramen površi 4. i 3. reda dobijen kao harmonijski ekvivalent pramena kvadrika kroz prostornu krivu 4. reda 1. vrste
(Univerzitet u Nišu, Niš, 2012)
This paper shows the process of inverting the 4th ordered space curve of the first category with a self-intersecting point (with two planes of symmetry) and determining its harmonic equivalent. There are harmonic equivalents ...
Polyhedral forms obtained by combinig lateral sheet of CP II-10 and truncated dodecahedron / Poliedarske forme nastale spajanjem omotača CP II-10 i zarubljenog dodekaedra
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2017)
The paper analyzes the possibility of obtaining polyhedral shapes formed by combining polyhedral surfaces based on the segment surface of elongated concave pyramids of the second sort (CeP II-10, type A and type B). In ...