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Prikaz rezultata 31-40 od 189
Integer points enumerator of hypergraphic polytopes
(Mathematical Institute of the Serbian Academy of Sciences and Arts, 2021)
For a hypergraphic polytope there is a weighted quasisymmetric
function which enumerates positive integer points in its normal fan
and determines its f −polynomial. This quasisymmetric function
invariant of hypergraphs ...
Hermitian Toeplicz determinants fr the class S of univalent functions
(National Academy of Sciences of the Republic of Armenia, 2021)
Introducing a new method, we give sharp estimates
of the Hermitian Toeplitz determinants of third order for the
class S of functions univalent in the unit disc. The new approach
is also illustrated on some subclasses ...
Potential and benefit of green roof energy renovation of existing residential buildings with a flat roof in Belgrade
(Applied Sciences, MDPI, 2023)
This paper considers the phenomenon of the instability of steel plane frame structures in the elastic-plastic domain. The numerical analysis uses FEM, where the corresponding stiffness matrices are based upon the trigonometric ...
Doprinos određivanju jonosferskog kašnjenja GNSS satelitskih signala na teritoriji Republike Srbije
(Savez inženjera i tehničara Srbije, Beograd, 2023)
Višefrekvencijski GNSS satelitski signali i njihova dostupnost omogućavaju istraživanja u nediferenciranom i nekombinovanom modelu u kome je pojedinačni signal na svakoj frekvenciji odgovarajuće nezavisno opažanje. Ovakve ...
Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System
(MDPI, 2022)
The paper presents a functionality investigation of the key dam elements based on finite element analysis. A detailed analysis of filtration processes, dam strength, and the surrounding rock mass was conducted. Dam elements ...
Determination of Mohr-Coulomb Parameters for Modelling of Concrete
(Crystals / MDPI, 2020)
Cohesion is defined as the shear strength of material when compressive stress is zero. This article presents a new method for the experimental determination of cohesion at pre-set angles of shear deformation. Specially ...
Residential Building Stock in Serbia: Classification and Vulnerability for Seismic Risk Studies
(Bulletin of Earthquake Engineering, 2023)
Regional seismic risk assessment is necessary for designing effective seismic risk mitigation measures. In general, such risk assessment studies consist of three components: hazard, vulnerability, and exposure modelling. ...
Estimating residual value of heavy construction equipment using ensemble learning
(http://cedb.asce.org, 2021)
Knowing the right moment for the sale of used heavy construction equipment is important information for every construction company. The proposed methodology uses ensemble machine learning techniques to estimate the price ...
Physical-mechanical properties and durability of Ultra-high Performance Concrete (UHPC)
(Society for Materials and Structures Testing of SerbiaUniversity of Belgrade, Faculty of Civil EngineeringAssociation of Structural Engineers of Serbia, 2021)
This paper presents the results of the authors' laboratory testing of physical,
mechanical and durability properties of Ultra-high Performance Concrete (UHPC).
The short history of development and application of UHPC ...
Project oriented problem based learning: The first experiances of using this approach at the study program of Geodesy and geoinformatics
(Savez inzenjera i tehnicara Srbije, 2020)
Projektno orijentisan problemski zasnovan pristup učenju (eng. Project Oriented and Problem Based Learning/Problem Oriented Project Based Learning - POPBL) jeste koncept koji je prvi put uveden sedamdesetih godina prošlog ...