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Упит dcterms_subject_txt:директно коришћење УПГ-а

1588 items

  • Turbidity simulation for short-term prediction: case study of the karst spring Surdup (Bor, Serbia)

    Marina Pešić, Vesna Ristić Vakanjac, Boris Vakanjac, Kostadin Jovanov (2016)
    Из перспективе снабдевања пијаћом водом, квалитет воде карстних издани је међу највишим, и често захтева само њихову дезинфекцију пре употребе. Међутим, карстне подземне воде изложене су одређеним притисцима. Током сушних периода углавном има мало воде, а током кишних периода има изненадних променa и квалитета и количине воде. Реакција слива на падавине је често брза и варијације у параметрима квалитета и квантитета (истицање, ниво вода, замућеност, укупан број микроорганизама, суспендовани нанос, итд.) су нестабилни. Ово захтева праћење истицања и ...
    водоснабдевање, карстно врело, истицање, мутноћа, симулациони модели

  • Regional Strike-Slip Structures in the Internal Dinarides: Insights from the Zvornik Fault

    Ana Mladenović, Violeta Gajić, Kristijan Sokol, Dejan Prelević (2024)

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... Serbia The Analytic Hierarchy Process (AHP) is a multi-criteria decision-making approach introduced by Saaty [4]. The AHP method enables users to determine the weights of the parameters in the solution of a multi-criteria problem. In the AHP method, a hierarchical model consisting of objectives ...
    ... criteria in the AHP method, a certain level of inconsistency may occur. Therefore, the logical consistency of pairwise comparisons must be checked [6]. To measure the consistency of pairwise comparison judgments, the consistency ratio proposed by Saaty [7] is used. A consistency ratio is calculated ...
    ... pairwise comparison matrix. The upper limit proposed by Saaty for this ratio is 0.10. In a case where the consistency ratio calculated for the judgments is below 0.10, it is considered that the judgments exhibit a sufficient degree of consistency and that the assessment can be continued. If the consistency ...

  • Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?

    Alena Zdravković, Maja Milošević, Ivana Jelić (2021)
    ... has been holding over a hundred years the gypsum model of triangular shape that represents the replica of one of the world’s largest native gold nugget weighing 36.2 kg, known as “The Great Triangle”. Nugget model is golden metallic in colour with a shape similar to a rectangular triangle, ...
    ... Mining and Geology, University of Belgrade, using a JEOL JSM-6610LV scanning electron microscope, coupled with an X-Max energy-dispersive spectrometer (Oxford Instruments). The small amount of the skim was gently removed from the surface and glued onto a graphite strip, without covering. Chemical ...
    ... 13–14, 2021, Miskolc, Hungary REPLICA OF THE “GREAT TRIANGLE GOLD NUGGET” BELONGING TO BELGRADE UNIVERSITY COLLECTION, GILDED OR NOT? ZDRAVKOVIĆ, A.1, MILOŠEVIĆ, M.1 & JELIĆ, I.2 1 Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia 2 Natural History Museum, Belgrade, Serbia ...

  • Obrazovanje kadrova i perspektive PMS-a u Srbiji

    Lazić Predrag, Deušić Slaven (2010)

  • The different approaches in seismic stratigraphy interpretation

    Dejan Radivojević (2018)
    U tekstu su prikazana dva osnovna pristupa u seizmostratigrafskoj interpretaciji. Prvi kao polaznu osnovu ima seizmičke sekcije, čija se interpretacija u kasnijoj fazi koreliše sa bušotinskim podacima. Drugi u prvoj fazi analizira podatke dobijene dubokim bušenjem koji se kasnije korelišu sa seizmičkim sekcijama. Prikazan je hronološki redosled i objašnjen postupak pri seizmostratigrafskoj interpretaciji oba pristupa. Ovakav način interpretacije omogućio je naftnim kompanijama detaljnije i preciznije sagledavanje geoloških odnosa, smanjenje rizika istraživanja i racionalnije projektovanje razradnih bušotina.
    seizmostratigrafija, istraživanje nafte i gasa, karakteristične seizmičke sekvence, seiz-mofacijalna analiza
    ... smanjenja veličine zrna obeležavaju se zelenim, a trendovi po- većavanja crvenim strelicama. Sledeći korak predsta- vlja određivanje mesta plavnih površina (FS-flooding surface), MFS-a, retrogradacione površine (RS-retro- gradational surface), MRS-a, interpretacija disko- rdancija prvog i drugog ...
    ... tektonski skelet basena, a u naftnom pogledu mogu biti pravci migracije ugljovodonika, nepermea- bilne barijere i rezervoari – u slučaju frakturiranih zo- na. Rasedne zone se na seizmičkim sekcijama uoča- vaju kao diskontinuiteti reflektora ili kao površine ra- sednih zona, a vrlo retko kao pojedinačni ...
    ... rigidnu metodologiju za dvodimenzionalno kartiranje seizmičkih facija po- znatu kao „A, B, C tehnika“. Ova tehnika se zasniva na opservaciji tri osobenosti svakog seizmičkog paketa: završetaka na povlatnoj granici (A), završetaka na po- dinskoj granici (B) i unutrašnjoj konfiguraciji refle- ksija ...

  • Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7

    Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković (2019)
    Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...
    ... defined: A-„favourable“, B-„conditionally favourable“ and C- „unfavourable“ terrains (Rakic et al. 2018). Figure 8. General model of terrain zoning based on geotechnical conditions Category A includes terrains that are stable in natural conditions. Maximal groundwater level is at a depth ...
    ... depth of about 2.0 m. In geotechnical sense, most of the route is estimated as favourable-A. Conditionally favourable-B is a part of the route where the embankment of height over 3.0 m is designed, at a point where the existing embankment of regional road will be widen (Figure 9). Figure ...
    ... engineering geological limitation map, zoning of the terrain was performed into: A-terrains with minimal limitations, B-terrains with minor limitations and C-terrains with larger limitations (Figure 7). A - terrains with minimal limitations are favourable and stable in natural conditions ...

  • Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities

    Dragana Nišić, Dinko Knežević, Aleksandar Cvjetić, Neda Nišić, Vladimir Jovanović (2022)
    The risks associated with operating water reservoirs and tailings storage facilities (TSFs) are different because of their different purposes, methods of construction and operation, and characteristics of the materials impounded and their flow behaviour. Regardless of the differences, these two types of structures are often put in the same category when it comes to risk assessment and the application of relevant methodologies, which may result in unrealistic outcomes. In this paper we investigate whether it is possible to apply ...
    procena rizika, akumulacije za vodu, jalovište, TSF, ICOLD, FMEA

  • Održivi razvoj rudarskog sektora

    Vladimir Pavlović, Dragan Ignjatović, Tomislav Šubaranović (2022)
    Imajući u vidu sve veću zabrinutost za stanje životne sredine i socioekonomsku nejednakost, sektorska održivost bez obzira na privrednu delatnost, privlači sve veću pažnju kako globalno tako i lokalno. U tom smislu postoji konsenzus kod svih zainteresovanih strana da čovečanstvo treba da usvoji mere za promenu trenutno neodrživih obrazaca proizvodnje i potrošnje. Rudarska industrija igra fundamentalnu ulogu u ovom kontekstu, privlačeći pažnju kroz različite inicijative tokom poslednjih decenija. Neke od njih su čak i primenjene u praksi ali konsenzus ...

  • Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia

    Marija Živković, Milica Ivić, Dejan Ivezić, Aleksandar Madžarević (2017)
    Natural gas is considered as the most environmentally acceptable fossil fuel, thus it is an alternative to petroleum derivate, dominantly used in internal combustion engines. Physical properties of a fuel as well as behavior during combustion process are affected by its composition. This article presents analysis of effect of natural gas composition on methane number (MN), conducted for natural gas deposits in Serbia. For empirically determination of MN: California air resources board (CARB) method and Linear and Anstalt für ...
    Састав, метански број, природни гас

  • Potassium-rich magmatism from a phlogopite-free source

    Yu Wang, Stephen F. Foley, Dejan Prelević (2017)

  • Kvartarni klastiti iz bušotine kod Aranđelovca (rasadnik Mladost)

    Miroslav Radeta (2024)
    U ovom radu analizirani su kvartarni klastiti iz bušotine kod Aranđelovca IB 18-3, sa ciljem boljeg razumevanja njihovih sedimentoloških i litoloških karakteristika. Kvartarni sedimenti su prilično homogenog/uniformisanog sastava i čine ih finozrni klastiti (dominantno alevroliti) sa određenim procentom peskovite i glinovite frakcije. Oni su iskartirani u samoj povlati i debljina im je 27 m. U podini su gornjokredne karbonatne stene (krečnjaci, laporci, rekristalisali/mermerisani karbonati) i miocenski sediment predstavljeni raznovrsnim varijetetima klastično karbonatnih stena. Ispitivani kvartarni sedimenti odlikuju se odsustvom ...
    kvartarni klastiti, alevriti, Aranđelovac, granulometrija, mineraloško petrografski sastav
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    ... mermera, leži istočno od Aranđelovca i važna je za lokalnu privredu, posebno za industriju građevinskog kamena. A Jo& 9 o ( 55 <a • phrtizani .. WCLNesSo o k rašdĆ j Bukovi a h 42 Bukovičk c O Vrbica | o 4 Risovača/ O +Bl i ~+ i Vene ·'5 J ŽI% Brezo;;rl | Bc u i i \ : ola ? |H ...
    ... CaCOx (kalcita) – Kalcimetrija .. 2.4.3. Optička analiza 3. SPECIJALNI DEO a aeaaaeaaeaaaeaeaaeaeeeeeeeeaeaeeeeaeeeaeeeeaeeeeeeeeeee 14 3.1. Rezultati i interpretacija sedimentoloških analiza............c.....aaaaa a aaaaaaaseeee. 14 3.1.1. Makroskopska ispitivanja 3.1.2. Rezultati hemijskih ...

  • Mineral resources in the Republic of Serbia: A Driving Force for Economic Development – Pro et Contra

    Jelenković Rade (2014)

  • Mandible shape differentiation between Mammuthus trogontherii and M. primigenius and mandible shape ontogeny in M. primigenius specimens from Serbia: A preliminary explorative geometric morphometric study

    Paunović Gordana, Bogićević Katarina, Urošević Aleksandar (2017)

  • Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts

    Dejan Radivojević (2019)
    Centralni Paratetis, neogen, Panonski basen, Sistem panonskog basena, Panonska oblast
    ... the area named as Pannonian basin is defined from paleogeographic aspect by von Telegd more than a hundred years ago, its use is still controversial in terms of time and spatial boundaries. There is a problem of timing, since this is an extremely dynamic area that, in the short geological period ...
    ... System and the Pannonian realm. However, each of these three terms represents a different concept and does not imply the same areal extinction and the time of sediment deposition. Regarding the Pannonian realm, it covers a space analogous to Pannonian basin which in geomorphological sense encompass ...
    ... Универзитет у Београду, Рударско-геолошки факултет Иако је простор именован као Панонски басен са палеогеографског аспекта дефинисан од стране вон Тегелд-а пре више од што година његова употреба је и даље контроверзна са аспекта временских и просторних граница. Постоји проблем времена трајања обзиром да ...

  • Analiza uporednog praćenja temperature površine ohlađenih materijala pri njihovom zagrevanju do ambijentalne temperature

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Katarina Nestorović (2021)
    U datom eksperimentalnom radu su termografskim metodama ispitivane termofizičke karakteristike različitih materijala. Za ispitivanja su izabrani mesingani niovčić, ugalj i pelet, jer imaju različita termoizolaciona svojstava i različito stanje površine. Uzorci su najpre hlađeni, a zatim je njihovo zagrevanje na sobnoj temperaturi praćeno termalnom kamerom. U drugom delu eksperimenta, korišćena je impulsna termografija, a zagrevanje površine uzoraka vršeno je svetlosnom pobudom.
    termografija, impulsna termografija, nedestruktivno testiranje materijala, mesing, ugalj, pelet

  • Transboundary groundwater resources of Serbia - present status and future needs for sustainable management

    Veljko Marinović, Branislav Petrović, Zoran Stevanović (2021)
    Republic of Serbia is located at the crossroads of Southeast and Central Europe and belongs to the Central Balkans. With its 88,360 km2, Serbia is one of the larger countries of the Balkan Peninsula. It borders 8 countries and has at least one transboundary aquifer (TBA) with each of them. According to evaluation conducted for UNECE in 2008, Serbia has a total of 17 TBAs, out of which 15 are shared with one neighboring country, while two aquifers are shared with two or three ...
    međugranične izdani, Srbija, monitoring podzemnih voda, upravljanje podzemnim vodama

  • Novi koncept izrade Osnovne hidrogeološke karte Srbije

    Igor Jemcov, Zoran Stevanović, Vladimir Živanović, Saša Milanović, Dušan Polomčić, Veselin Dragišić (2022)
    Osnovna hidrogeološka karta (OHGK) predstavlja bazični dokument u hidrogeologiji, a ima za cilj sagledavanje osnovnih tipova izdani što da omogućava sagledavanje podzemnih vodnih resursa na području obuhvaćenom kartom. Primena postojećeg Uputstva za izradu Osnovne hidrogeološke karte SFRJ 1:100.000 (iz 1984, odnosno 1988. godine), vezana je za brojne poteškoće, što je uslovilo da je u proteklom periodu od 30 godina bilo je više inicijativa za formiranjem novog Uputstva. Sagledavajući postojeću situaciju uz činjenice o savremenim trendovima razvoja hidrogeoloških karata u ...
    Osnovna Hidrogeološka Karta, koncept izrade OHGK, harmonizovana legenda OHGK

  • Subsurface dams as a solution for supplementary recharge and groundwater storage in karst aquifers in arid areas

    Stevanović Zoran (2014)

  • Human Hemoglobin and Antipsychotics Clozapine, Ziprasidone and Sertindole: Friends or Foes?

    Lena Platanić Arizanović, Nikola Gligorijević, Ilija Cvijetić, Aleksandar Mijatović, Maja Krstić Ristivojević, Simeon Minić, Aleksandra Nikolić Kokić, Čedo Miljević, Milan Nikolić (2023)
    Packed with hemoglobin, an essential protein for oxygen transport, human erythrocytes are a suitable model system for testing the pleiotropic effects of lipophilic drugs. Our study investi gated the interaction between antipsychotic drugs clozapine, ziprasidone, sertindole, and human hemoglobin under simulated physiological conditions. Analysis of protein fluorescence quenching at different temperatures and data obtained from the van’t Hoff diagram and molecular docking indicate that the interactions are static and that the tetrameric human hemoglobin has one binding site for ...
    Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Computer Science Applications, Spectroscopy, Molecular Biology, General Medicine, Catalysis