Browsing Природно-математички факултет by Title
Now showing items 81-100 of 269
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Enhancement of the bandwidth of W-type glass optical fibers in the infrared wavelength region
(Elsevier, 2018-08-28)Transmission characteristics (bandwidth and steady state loss) of multimode W-type glass optical fibers are investigated by solving the time-dependent power flow equation. Results show how the bandwidth in W-type glass ... -
Environmental radioactivity with respect to geology of some Serbian spas
(Springer, 2018-05-17)This study was performed in order to investigate gamma dose rates, radon exhalation rates and soil radioactivity with respect to geology. Fifteen locations in three Serbian spas were under investigation. Gamma dose rate ... -
Environmental risk assessment of radioactivity and heavy metals in soil of Toplica region, South Serbia
(Springer, 2018-03-13)Activity levels of natural and artificial radionuclides and content of ten heavy metals (As, Cd, Co, Cr, Cu, Mn, Ni, Pb, Zn and Hg) were investigated in 41 soil samples collected from Toplica region located in the south ... -
Evaluation of azamethiphos and dimethoate degradation using chlorine dioxide during water treatment
Chlorine dioxide (ClO2) degradation of the organophosphorus pesticides azamethiphos (AZA) and dimethoate (DM) (10 mg/L) in deionized water and in Sava River water was investigated for the first time. Pesticide degradation ... -
Existence and Unique Coupled Solution in Sb-Metric Spaces by Rational Contraction with Application
(MDPI (Basel, Switzerland), 2019-03-28)In this paper, we prove a unique common coupled fixed point theorem for two pairs of w-compatible mappings in Sb -metric spaces. We also furnish an example to support our main result. -
Figurative numbers contribution in perceiving the legality in numerous strings tasks and log-term memory of numerous data
(Modestum, 2019-01-27)Contemporary mathematics teaching is mostly reduced to the application of algebraic formulas and algebraic procedures. The visual-logical approach in solving mathematical tasks is very little represented in teaching ... -
First electrochemical investigation of organophosphorus pesticide azametiphos and its quantification using electroanalytical approach
In this work, the electrochemical behaviour and the subsequent development of an analytical procedure for quantification of pesticide azamethiphos, using boron-doped diamond (BDD) electrode are reported for the first time. ... -
First electrochemistry of herbicide pethoxamid and its quantification using electroanalytical approach from mixed commercial product
This work present a new approach for the detection of relatively new herbicide pethoxamid (POA), a first electrochemical behavior and determination based on its oxidation on boron-doped diamond electrode in Britton-Robinson ... -
First study of electrochemical behavior of herbicide pethoxamid and its voltammetric determination in river water
Pethoxamid (РОА) is relatively new herbicide and it belongs to group of chloroacetamides. lt inhibits the germination of target weeds in com, soybeans, peas and beans, tobacco and other crops and it can affects on ... -
Flexibility of curves on a single-sheet hyperboloid
Hyperbolic towers are towers in the shape of a single-sheet hyperboloid, and they are interesting in architecture. In this paper, we deal with the infinitesimal bending of a curve on a hyperboloid of one sheet; that is, we ... -
The floral scent of Dianthus cruentus Griseb. (Caryophyllaceae)
The genus Dianthus L. (Caryophyllaceae) comprises over 300 species of herbaceous plants that are spread over a vast area, especially in the Mediterranean region. Species of this genus, represented with 38 taxa in the Serbian ... -
Gamma Irradiation: Properties, Behavior and Applications
(Nova Science Publisher, 2021-08-11)Gamma radiations are used for sterilization processes in medical devices, food industry as well as in nuclear power plants or aerospace. Gamma irradiation is a very convenient tool for the modification of polymeric materials. ... -
Generating function for the figurative numbers of regular polyhedron
(Hindawi, 2020-04-14)In this paper, we are going to demonstrate a method for determining the generating functions of tetrahedral, hexahedral, octahedral, dodecahedral, and icosahedral figurative numbers. The method is based on the differences ... -
Geodesic infinitesimal deformations of generalized Riemannian space
(Birkhaeuser Verlag AG, 2022-05-11)Infinitesimal deformations of subspaces of a generalized Riemannian space are studied in this paper. Variations of some geometric objects are found. Necessary and sufficient conditions which provide the existence of a ... -
GIS analysis of land cover changes on the territory of the Prokuplje municipality
(Hindawi, 2014-01-03)The monitoring of the territory of Prokuplje Municipality was done based on 1 : 25,000 topographic maps in three different time periods (1969, 1974, and 1984) and land cover map in 2012. Analogous topographic maps done in ... -
GIS and geographical analysis of the main harbors in the world
(2021-05-28)This paper points out the possibilities of better exploitation of marine traffic as well as its connection with other kinds of traffic. Special attention is given to the analysis of 1,081 harbors about their availability ... -
A GIS-based method for analysis of a better utilization of thermal-mineral springs in the municipality of Kursumlija (Serbia)
(Elsevier, 2018-09-02)There are about 240 geothermal occurrences with 60 commercial spas included in, which are spread throughout the territory of Serbia. The majority of springs and other surface manifestations are located along the south-eastern ... -
Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles
(Elsevier, 2019-12-11)The simple green method for synthesis of stable L-Methionine (L-Met) capped silver (Ag@LM NPs) and gold (Au@LM NPs) nanoparticles (NPs) without adding any additional reduction agent or stabilizer was developed. Colloidal ... -
Green synthesis of L-Methionine capped silver and gold nanoparticles
(Society of Physical Chemists of Serbia, 2018-09-28)In this work, we present a simple green method for Ag and Au nanoparticles (NPs) synthesis in an aqueous medium. Ag and Au NPs were synthesized by chemical reduction method, using amino acid L-Methionine as reducing as ... -
Herbicide Clomazone Detection Using Electroanalytical Approach Using Boron Doped Diamond Electrode
In this work, for the first time we proposed electrochemical behavior and development of an analytical procedure for quantification of pesticide clomazone. Electrochemical behavior of clomazone’s at boron-doped diamond ...