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dc.creatorTomantschger, Kurt
dc.creatorPetrović, Dragan V.
dc.creatorRadojević, Rade L.
dc.creatorTadić, Vjekoslav
dc.date.accessioned2021-10-28T15:23:42Z
dc.date.available2021-10-28T15:23:42Z
dc.date.issued2021
dc.identifier.issn1846-6168
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/5927
dc.description.abstractOne of the technical factors from agricultural nozzles and overall plant protection is droplet diameter, which exclusively depends on working pressure, ISO number and nozzle type. Therefore, this paper was aimed to describe mathematical model for droplet size distribution. Through field exploitation experiment, data was used from three ISO numbers of nozzles (hollow cone 80 015; 02 and 03), two air-assisted sprayers (axial and radial fan) and two permanent crops (vineyard and an apple orchard). Water sensitive papers were used for evaluation of droplet diameters, and digital image analysis with Image J software was used for data processing. Mathematical model through homogenous diffusion equation and simplified differential equation shows that droplet size distribution had exponential function of modelling. Theoretical mathematical model was confirmed in experimental results, where coefficient of determination of exponential regression model for 80 015 nozzles was 0.93 with 5.15 of RMSE. The same coefficient for 80 02 nozzles was 0.96 with 2.88 of RMSE and for 80 03 nozzle R2 was 0.93 with 3.25 of RMSE. In addition, it is proved that droplet diameter depends on operating pressure with very high negative correlation (80 03 nozzles: r = −0.98; 80 02 nozzles: r = −0.97; 80 015 nozzles: r = −0.95). This data will help future researchers in their papers to facilitate and describe similar models for plat protection processes, and all agricultural producers to determine optimal operating pressure which is immensely important in economic, biologic, technical and ecologic aspect.sr
dc.language.isoensr
dc.publisherStrojarski Facultetsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200116/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31051/RS//sr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceTehnicki Vjesniksr
dc.subjectAgricultural nozzlessr
dc.subjectDiffusion equations, droplet size distributionsr
dc.subjectPartial differential equationsr
dc.subjectPlant protectionsr
dc.titleMathematical Method for Droplet Size Distribution of Agricultural Nozzlessr
dc.typearticlesr
dc.rights.licenseBYsr
dc.citation.epage1754
dc.citation.issue5
dc.citation.rankM23~
dc.citation.spage1749
dc.citation.volume28
dc.identifier.doi10.17559/TV-20200428144856
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/23229/Mathematical_Method_for_pub_2021.pdf
dc.identifier.scopus2-s2.0-85113370813
dc.identifier.wos000686136200011
dc.type.versionpublishedVersionsr


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