Претрага
268 items
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Comparison of sequential and single extraction in order to estimate environmental impact of metals from fly ash
летећи пепео угља, екстракција са једним агенсом, секвенцијална екстракција, микроталасне пећнице, ултраталасиAleksandra Tasić, Ivana Sredović-Ignjatović, Ljubiša Ignjatović, Marija Ilić, Mališa Antić. "Comparison of sequential and single extraction in order to estimate environmental impact of metals from fly ash" in Journal of the Serbian Chemical Society (2016). https://doi.org/10.2298/JSC160307038T М23
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Comparison of sequential and single extraction in order to estimate environmental impact of metals from fly ash
The aim of this paper is to simulate leaching of metals from fly ash in different environmental conditions using ultrasound and microwave-assisted extraction techniques. Single-agent extraction and sequential extraction pro¬cedures were used to determine the levels of different metals leaching. The concentration of metals (Al, Fe, Mn, Cd, Co, Cr, Ni, Pb, Cu, As and Be) in fly ash extracts were measured by inductively coupled plasma-atomic emission spectrometry. Single-agent extractions of metals were conducted at sonication times of 10, ...leteći pepeo uglja, ekstrakcija sa jednim agensom, sekvencijalna ekstrakcija, mikrotalasi, ultratalasiAleksandra Tasić, Ivana Sredović-Ignjatović, Ljubiša Ignjatović, Marija Ilić, Mališa Antić. "Comparison of sequential and single extraction in order to estimate environmental impact of metals from fly ash" in Journal of the Serbian Chemical Society, National Library of Serbia (2016). https://doi.org/10.2298/JSC160307038T М23
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPSMarija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365 М22
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Основи гравиметрије - практикум
Ивана Васиљевић, Снежана Игњатовић (2019)Ивана Васиљевић, Снежана Игњатовић. Основи гравиметрије - практикум, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2019 Без категорије
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Дефинисање граница плутонита Ваља Стрж применом математичких трансформација
Игњатовић Снежана, Васиљевић Ивана, Васиљевић Илија. "Дефинисање граница плутонита Ваља Стрж применом математичких трансформација" in Техника 65 no. 5, Београд:Савез инжињера и техничара Србије (2014): 759-764 M51
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Standardization of Serbian gravity database on a test area
Vasiljević Ivana, Ignjatović Snežana, Đurić Dragana. "Standardization of Serbian gravity database on a test area" in 9th Congress of the Balkan Geophysical Society (BGS 2017), Antalya, Turkey, 5. - 9. Nov, 2017, http://www.earthdoc.org:EAGE (2017): 1-5 M33
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Коришћење потенцијалних поља у моделовању геолошких средина
Петровић Драгана, Игњатовић Снежана, Васиљевић Ивана. "Коришћење потенцијалних поља у моделовању геолошких средина" in I Конгрес геолога у Босни и Херцеговини са међународним учешћем, Тузла, Зборник радова, Тузла, Босна и Херцеговина:Удружење/удруга геолога у Босни и Херцеговини (2015): 131-132 M64
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Definisanje strukturno-tektonskih odnosa koji su uticali na formiranje neogenih basena primenom matematičkih transfomacija
Snežana Ignjatović, Ivana Vasiljević, Dejan Vučković. "Definisanje strukturno-tektonskih odnosa koji su uticali na formiranje neogenih basena primenom matematičkih transfomacija" in XVIII Kongres geologa Srbije, Divčibare, 01-04. jun 2022., Srpsko geološko društvo (2022) М64
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Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement
Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić,. "Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement" in International scientific conference Challenges in Applied Geology and Geophysics: 100th Anniversary of Applied Geology at AGH University of Science and Technology, Book of abstracts, Kraków, Poland, 10-13. Sep. 2019, Kraków, Poland : AGH University of Science and Technology (2019) М34
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Definisanje strukturnih odnosa primenom postupka horizontalni gradijent
Različiti postupci matematičkih transformacija se mogu primeniti na gravimetrijskim i magne tometrijskim podacima, kako bi se na istražnom terenu definisali strukturno-tektonski odnosi. U radu su prikazani rezultati dobijeni korišćenjem postupka horizontalni gradijent i ukupni horizontalni gradijent na gravimetrisjkim podacima. Navedeni postupci su pomogli da se detektuju kontakti sa velikim padnim uglom (vertikalni ili subvertikalni kontakti), koji se mogu interpretirati kao rasedi. Za test područije uzet je istražni prostor koji se nalazi na jugoistoku Srbije u okolini Vranjskog basena. Položaji ...Snežana Ignjatović, Ivana Vasiljević, Natalija Jovanović. "Definisanje strukturnih odnosa primenom postupka horizontalni gradijent" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2019). https://doi.org/10.5937/tehnika1905664I М52
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Примена функције расподеле густине седимената у гравиметријском моделирању подлоге басена
Васиљевић Ивана, Спасојевић Исидора, Игњатовић Снежана, Сретеновић Бранислав. "Примена функције расподеле густине седимената у гравиметријском моделирању подлоге басена" in 17. Конгрес геолога Србије,Врњачка Бања, Srbija, 17. - 20. Mај, 2018 2, Београд:Српско геолошко друштво (2018): 687-691 M63
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Стандардизација поправки при рачунању гравиметсијских аномалија у Србији
Васиљевић Ивана, Игњатовић Снежана, Сретеновић Бранислав, Одаловић Олег. "Стандардизација поправки при рачунању гравиметсијских аномалија у Србији" in Оптимално истраживање и одрживо коришћење геолошких ресурса : зборник радова XVI конгреса геолога Србије, Donji Milanovac, 22-25.05.2014. = Optimal Reserach and Sustainable Usage of the Geological Resources : proceedings of the XVI Serbian Geologcal, Београд:Српско геолошко друштво (2014): 708-717 M63
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Примена гравиметријских података за проучавање развоја неогених басена у Динаридима: Бихаћки басен
Игњатовић Снежана, Андрић Невена, Младеновић Ана, Васиљевић Ивана. "Примена гравиметријских података за проучавање развоја неогених басена у Динаридима: Бихаћки басен" in 17. Конгрес геолога Србије,Врњачка Бања, Srbija, 17. - 20. Mај, 2018 2, Београд:Српско геолошко друштво (2018): 692-696 M63
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Defining structural correlation using of total horizontal gradient
Gravity data can help to define the structural correlation along significant vertical shifts. The different procedures of mathematical transformations on gravity data are applied to define structural correlations. The paper presents the results obtained using the procedure total horizontal gradient on gravity data. The application of the total horizontal gradient helped to detect contacts with a large dip angle (vertical or subvertical contacts), which can be interpreted as faults. The study area located in the wider area of the ...Snežana Ignjatović, Ivana Vasiljević, Milanka Negovanović. "Defining structural correlation using of total horizontal gradient" in The 52nd International October Conference on Mining and Metallurgy, Bor, novembar 29-30.11.2021., University of Belgrade ‐ Technical faculty in Bor, Bor, November 2021 (2021) М33
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Modeli raspodele gustine u neogenom kompleksu Bačkog platoa i njihova primena
Ivana Vasiljević, Ivan Dulić, Snežana Ignjatović, Vladislav Gajić. "Modeli raspodele gustine u neogenom kompleksu Bačkog platoa i njihova primena" in XVIII Kongres geologa Srbije, Divčibare, 01-04. jun 2022., Srpsko geološko društvo (2022) М64
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Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations
The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković. "Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024) М33
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Detecting the boundaries of gravity anomaly sources using the vertical and tilt derivative
In geophysical exploration, it is important to define the boundaries of anomaly sources that are not visible on the surface. Information about the boundaries of sources can help during geophysical geological modeling of the survey area. A model of the survey area can help in better defining the geological structure and geological development of an exploration area. This paper presents how the procedures of vertical and tilt derivative on gravity data can help to detect the ...Snežana Ignjatović, Ivana Vasiljević, Branislav Sretković. "Detecting the boundaries of gravity anomaly sources using the vertical and tilt derivative" in The 55th International October Conference on Mining and Metallurgy , Kladovo, Serbia, 15 - 17. October 2024, Bor: Mining and Metallurgy Institute Bor ( 2024 ). https://doi.org/DOI: 10.5937/IOC24099I М33
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2D Geophysical-geological modeling
Ignjatović Snežana, Đurić Dragana, Pantović Radoje, Vasiljević Ivana, Vasiljević Ilija. "2D Geophysical-geological modeling" in 48th International October Conference on Mining and Metallurgy, University of Belgrade - Technical Faculty in Bor, Bor:University of Belgrade - Technical Faculty in Bor (2016): 61-64 M33
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The application of mathematical transformation on aeromagnetic data in order to detect magnetic anomaly sources
Ignjatović Snežana, Ivanović Nadežda, Vasiljević Ivana, Vasiljević Ilija, Kričak Lazar. "The application of mathematical transformation on aeromagnetic data in order to detect magnetic anomaly sources" in 45th International October Conference on Mining and Metallurgy, Bor:University of Belgrade-Technical Faculty in Bor (2013): 256-260 M33
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Using gravity data to define structural correlation affecting the formation of Neogene basins
A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović. "Using gravity data to define structural correlation affecting the formation of Neogene basins" in The 54th International October Conference on Mining and Metallurgy, Bor Lake, Serbia, 18-21 October 2023, Bor : University of Belgrade, Technical Faculty in Bor (2023) М33