Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Đorđević Nataša"'
Autor:
Đorđević Nataša, Matić Sanja, Milovanović Dragan, Stefanović Srđan, Popović Suzana, Todorović Danijela, Đurđević Predrag, Sazdanović Predrag, Antić Vasilije, Lončar Slavica, Bukumira Slavica, Radenković Marko, Šušteršić Tijana, Filipović Nenad, Baskić Dejan
Publikováno v:
Srpski Arhiv za Celokupno Lekarstvo, Vol 152, Iss 5-6, Pp 244-253 (2024)
Introduction/Objective. The main aim of this study was to assess COVID-19 vaccination effectiveness (VE) of BBIBP-CorV, Gam-COVID-Vac, BNT162b2, and ChAdOx1-nCoV-19 in Serbia during the first three months of rollout. Methods. The data from the Serbia
Externí odkaz:
https://doaj.org/article/0a55a3ad9698457483e42ee5bea53508
Publikováno v:
Podzemni Radovi, Vol 2024, Iss 44, Pp 11-17 (2024)
The article shows changes in certain mechanical properties of polyvinyl chloride (PVC) depending on the quality of added limestone as a filler. Natural limestone and limestone hydrophobicized with stearic acid were added. Modification experiments wer
Externí odkaz:
https://doaj.org/article/eff246e9164e4eafa5f14359642b3ed6
Publikováno v:
Podzemni Radovi, Vol 2023, Iss 43, Pp 71-78 (2023)
The protection and arrangement of agricultural areas in order to obtain health-safe food is extremely important to know the mobility of heavy metals lead, cadmium, zinc and uranium as radionuclides. This research investigated the influence of mineral
Externí odkaz:
https://doaj.org/article/66bae99af8da427eb089f2fe1d5130bb
Publikováno v:
Podzemni Radovi, Vol 2023, Iss 43, Pp 17-25 (2023)
The paper presents the geological characteristics of the limestone of the "Dobrilovići" deposit and the characterization of the trench sample. The technological scheme of limestone preparation, which is used to obtain suitable sizes for use in agric
Externí odkaz:
https://doaj.org/article/b27ece3e108e48a6b78241034a73ca3a
Autor:
Đorđević Nataša, Matić Sanja, Milovanović Dragan, Stefanović Srđan, Popović Suzana, Todorović Danijela, Đurđević Predrag, Sazdanović Predrag, Antić Vasilije, Lončar Slavica, Bukumira Slavica, Radenković Marko, Šusteršić Tijana, Filipović Nenad, Baskić Dejan
Publikováno v:
Srpski Arhiv za Celokupno Lekarstvo, Vol 151, Iss 9-10, Pp 518-524 (2023)
Introduction/Objective. The duration of vaccine-induced protection against SARS-CoV-2 is shown to be limited. The aim of this study was to assess vaccine effectiveness (VE) of a third dose of four different COVID-19 vaccines during Delta variant pred
Externí odkaz:
https://doaj.org/article/792880cab6dd49aba484c9da1749f705
Publikováno v:
Podzemni Radovi, Vol 2023, Iss 42, Pp 37-45 (2023)
The aim of this research was to obtain an initial characterization of the BaO and TiO2 components, as well as to conduct preliminary research into the possibility of activating the initial components in order to obtain barium titanate. Chemical and X
Externí odkaz:
https://doaj.org/article/6ec5103d44314d06994e0bd955a18890
Autor:
Đorđević Nataša, Vlahović Milica, Martinović Sanja, Mihajlović Slavica, Kašić Vladan, Grubišić Mirko
Publikováno v:
Podzemni Radovi, Vol 2023, Iss 42, Pp 19-25 (2023)
Concrete is a material that has been used for centuries and is often modified using polymers. In the last fifty years, synthetic polymers have been used for the modification of concrete, but also for the production of concrete. In recent decades, sul
Externí odkaz:
https://doaj.org/article/c513904aeec5401ab1724a3befe83f6f
Autor:
Đorđević Nataša, Vlahović Milica, Mihajlović Slavica, Martinović Sanja, Vušović Nenad, Lozanović-Šajić Jasmina
Publikováno v:
Science of Sintering, Vol 54, Iss 4, Pp 481-494 (2022)
During mechanical activation, qualitative changes that can produce various phenomena occur in the material. In this study, anhydrous sodium carbonate was mechanically activated for 2, 7, 14, and 28 minutes in a vibro mill at a frequency of 3000 os
Externí odkaz:
https://doaj.org/article/f5da59c8ebe74d3294dc07a51ddcfbc9
Autor:
Đorđević Nataša, Mihajlović Slavica, Pantović-Spajić Katarina, Lozanović-Šajić Jasmina, Grubišić Mirko
Publikováno v:
Podzemni Radovi, Vol 2022, Iss 41, Pp 15-21 (2022)
During mechanical activation, energy of treated material is increase to a higher level. This can lead to chemical transformation of the activated material. This is the point where we can talk about mechanochemical transformations that have occurred a
Externí odkaz:
https://doaj.org/article/631877152a7a4d3ba6888de6e3db963f
Autor:
Đorđević Nataša, Mihajlović Slavica
Publikováno v:
Podzemni Radovi, Vol 2022, Iss 40, Pp 27-35 (2022)
Mineral materials, such as corundum, quartz and periclase are very often used in technological processes. Due to its characteristics, and chemical reaction in solid state, these minerals form very interesting and useful material, cordierite. The mine
Externí odkaz:
https://doaj.org/article/5aeab63570a84d5eab763d93043e0f8d