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518 items

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... Regionalni vodovodni sistem „Bolje Sestre” sa koga se snabdeva Crnogorsko primorje, Skadarsko Jezero, Budva, Kotor, vrela ljuta, Sopot, Spila Risanska, Kameno more i Grahovsko karstno polje. Nakon povratka u Trebinje, zvanično Je 1. Juna otpočeo kursa CEKA 2017. Učesnici iz SAD-a i predavači na kursu ...
    ... Bolje Sestre Regional Water System, which services the Montenegrin coast, Lake Skadar, Budva, Kotor, the springs of ljuta, Sopot and Spila Risanska, Kameno more (the Stone Sea) and the Grahovsko karst polje. Mter the return to Trebinje, the CEKA 2017 course officially started on June 1. Učesnici iz ...
    ... and witness of the creation and work of the Centre for Karst Hydrogeology at the Department of Hydrogeology of the Faculty of Mining and Geology. So, in front of you is an attempt by a "fan" to remain objective, which can be facilitated to some extent by the fact that he has not been at the helm ...

  • Remedijacija otpadnih voda Rudnika prirodnim zeolitom

    Igor Veličković (2024)
    U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...
    flotation waste water, zeolite tuff, purification
    ... polja njihove primene u ekosistemima: kod odstranjivanja organskog sumpora vezanog za ulja (Benashvili, 1988); kod prečišćavanja vazduha od gasova SO», COx ı azotnih oksida (Galabova & Haralampiev, 1988)]; kod prečišćavanja voda (Vujković et al., 2000); u poljoprivredi (Pond & Mumpton, 1984); u ...
    ... ali i druge katjone i anjonske grupe. Značajno je da se zeoliti mogu regenerisati i koristiti u toku više cikličnih procesa. Obradom sa rastvorima soli, kiselina i alkalija, mogu se modifikovati, kako bi se njihova svojstva prilagodila rešavanju postavljenih zadataka (Majstorović- Necković, 2015) ...
    ... uključuje agresivno rastvaranje koje Je veoma efikasno za rastvaranje otpornih minerala. Za ICP-MS analize korišćeni su sertifikovani standardi: STD SO-19, STD DS11, STD OREAS262, STD GS311-1 i STD GS910-4. Difraktogram zeolitskog tufa Je snimljen na Philips PW-1710 difraktometru u Laboratoriji ...

  • Production information system of the Pljevlja coal mine

    Božo Kolonja, Ranka Stanković, Filip Vuković (2018)

  • A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area

    Filip Anđelković, Dejan Radivojević (2018)
    baden, Beograd, facije, facijalna raznovrsnost, sedimenti
    ... ispucali  (zavisno  od  lokacije).  Tipski  profil  tašmajdanskih  krečnjaka je upravo Tašmajdan odakle se nekada i eksploatisao i služio kao građevinski kamen.   Amfisteginski krečnjaci se pojavljuju na nekoliko izdanaka u blizini Višnjice i Slanaca. U toj oblasti  su  razvijeni  i  ceritski  krečnjaci  (na brdu  ...
    ...  1989b).     MATERIAL AND METHODS    The  fieldwork  that  had been  carried  out  in  the Belgrade  area  studied  two  facies:  Tašmajdan  limestones  (so  called  „Leitherkalk“  (Gruber,  1988)  or  „Leitha  limestones“)  and  Rakovica  clastic  sedi‐ ments (sands and conglomerates). There are two add ...

  • English for Geology Students. 2

    Lidija Beko (2023)
    Engleski jezik
    ... students 1. Realizing that some teachers may prefer to structure their courses differently, we have made it such a way that each chapter is independent, so that they could be taught even in a differ- ent order that the one offered in the book. Therefore, teachers can combine the previous textbook with ...

  • English for Geology Students. 1

    Lidija Beko (2023)
    Engleski jezik
    ... was only accessible due to the pumping equipment used by the mining company. In 2015, the Cave was allowed to flood when mining operations cease and so the crystals may once again begin to grow! ___ Using the web pages below, and any others you can find, write a description of how selenite crystals ...

  • Zaštita od miniranja

    Suzana Lutovac, Miloš Gligorić (2024)
    Miniranje

  • Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support

    Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović (2017)

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... that sanidine and quartz predominate in D. The strength parameters of the rock material are affected mainly by the content and size of quartz crystals. So, as the content of smaller quartz particles increases, the compressive strength increases. In the AD sample, the process of quartz resorption is pronounced ...
    ... study includes laboratory UCS and triaxial tests of the composite specimens consisting of dacite and altered dacite, which have not been investigated so far. In previous studies, to make the composite specimens test results comparable, the intact UCS of each composite specimen (σci UCS) were normalized ...
    ... given by Marinos and Hoek [9], and Marinos [10] (Figure 17). Therefore, applying both of these practical methods for constant mi estimation is justified, so in this way, one can obtain a realistic estimation of the heterogeneous intact rock mass constant mi. The constant mi determined using the procedure ...

  • ‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions

    Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban (2020)
    Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...
    Firing, Glaze, Traditional ceramics, Provenance studies, Augite

  • Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides

    Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)
    Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis
    ... observed asymmetry of F, folds suggests top-WNW tec- tonic transport direction for D, phase. Transposition by solution and neo-crystallization of So„ bedding due to intense D, deformation was frequently observed (Fig. 3). Structures of D, phase were not observed neither in the Southern Triassic ...
    ... nor in the Cretaceous sedi- mentary sequences. The D deformation phase is characterized by gentle to tight folding of the S, main foliation and So bedding, and by NW-SE striking reverse faults (Fig. 4a, b). D+ struc- tures affect all stratigraphic units of the study area from the Paleozoic ...
    ... mechanism during the Do phase. No penetrative planar structure has been observed to be associated with the D, phase except for the rare occurrence of a So» crenulation cleavage (folding the S, axial plane cleavage) in carbonate layers of the Paleozoic and in the Northern Triassic unit. K. Porkolab ...

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"

    Tomislav Trpković (2024)
    Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...
    postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod
    ... kontrolisati emisije sumpora radi smanjenja negativnih uticaja na ekologiju. Sumpor (S) se može naći u gorivu u tri različita oblika: • Organski oblik (So): U ovom obliku, sumpor je vezan sa ugljenikom, vodonikom, kiseonikom i azotom, formirajući složena organska jedinjenja. • Piritni oblik (Sp): Sumpor ...
    ... 80 Projektna temperatura postojećeg sistema dimnog gasa oC 190 90 H.O vol% 22,45 22,4 5 O> vol% - suvo 7,15 7,15 CO» vol% - suvo 13,3 3,3 SO>» mg/Nm? 4.984 4.98 6 vol% O> suvo 4 SOs mg/Nm? 50 50 6 vol% O> suvo NO. mg/Nm? 200 200 6 vol% O> suvo HCI mg/Nm? 100 100 6 vol% O> suvo ...
    ... Parametri dimnog gasa na izlazu iz sistema ODG prikazani su u tabeli Tabela 2.2 Parametri dimnog gasa na izlazu iz postrojenja Opis Jedinica mere SO> mg/Nm3š < 6 vol% O> suvo 2 0 0 Praškasta materija mg/Nm3š < 6 vol% O> suvo 2 0 Emisija kapljica mg/Nm?* < 6 vol% O> suvo || 0 0 Parametri ...

  • Geotehničko istraživanje terena za potrebe izgradnje mosta „Mihajlo Pupin“ u Zemunu

    Luka Malenov (2024)
    Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Dušana Berisavljevića, analizirani su parametri dobijeni laboratorijskim ispitivanjima, kao i in-situ istraživanjima terena i ustanovljeni su geotehnički uslovi izgradnje mosta Zemun-Borča. Takođe, izvršeno je određivanje karakterističnih vrednosti geotehničkih parametara, koje se izučava u sklopu obaveznog predmeta u četvrtoj godini: Projektovanje inženjerskogeoloških radova. Detaljna geotehnička istraživanja terena, izveo je Saobraćajni institut CIP iz Beograda, za potrebe izrade Glavnog projekta mosta Mihajlo Pupin preko Dunava, ...
    tlo, most, geotehnički parametri, karakteristične vrednosti geotehničkih parametara
    ... | = | __ | | || a-}_| 3C5 _I } |a| | | } | } |[ | _| ___ _usgasss”aazpsssi ___ |=s | | __ | _= |_ |____2igogizo|zidozias| d| 45.so|M_____ zaoof sn.oe| 1s:sc| ve-so| osos|__+_|_s4_ [_ ss |___|____ | |_____ [zasoggas| zaogoss| _— | |[s | | | }i}s}m} | _I T lel | L | | | | | |_____uaasaac| asenaag| ...
    ... Glinovita prašina — ||__ _ v71.60 _I _E 80 _— Uo _ || _ P 768 73.50 7510 CPT2S-19 NPV/]·ŽŽ@ 73,40 ___ _ || V72.50 CPr5 —| __ _71.30 _71.5 _ _ OMOI m so | __v71,50 I _— __v72410 _O „72.00 60 __ . 7140 - ZS-3 (65.62) _70.10m KOTA MALE VODE ZS-10 (68.70) ZS-12 (67.89) %Au„;l?()šgm Ckd=1.5MPa, - Ck;_šč”#š@x ...
    ... 2010 |KARTIRAO V. Maletić, dipl.ing.geol. KOTA (mnm) ZAVR[ENO 03.05.2010. |CRTAO Luka Malenov 1:100 FaJEE: s Šlo|ž} |MB < z= 5 s o|e ts < F 5 o so olel| T| |. ŠSlms|adloš Pž a|8|z|5|NH S x u |< [ruj u a [=} 5 š% LITOLOŠKI OPIS •)|| Ž Dmu | — ; P š ; 7 mnm'! m | m = = mm| #| m|m | m 0 i ...

  • Geotehničko istraživanje terena za potrebe izgradnje mosta „Mihajlo Pupin“ u Zemunu

    Luka Malenov (2024)
    Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Dušana Berisavljevića, analizirani su parametri dobijeni laboratorijskim ispitivanjima, kao i in-situ istraživanjima terena i ustanovljeni su geotehnički uslovi izgradnje mosta Zemun-Borča. Takođe, izvršeno je određivanje karakterističnih vrednosti geotehničkih parametara, koje se izučava u sklopu obaveznog predmeta u četvrtoj godini: Projektovanje inženjerskogeoloških radova. Detaljna geotehnička istraživanja terena, izveo je Saobraćajni institut CIP iz Beograda, za potrebe izrade Glavnog projekta mosta Mihajlo Pupin preko Dunava, ...
    tlo, most, geotehnički parametri, karakteristične vrednosti geotehničkih parametara
    ... | = | __ | | || a-}_| 3C5 _I } |a| | | } | } |[ | _| ___ _usgasss”aazpsssi ___ |=s | | __ | _= |_ |____2igogizo|zidozias| d| 45.so|M_____ zaoof sn.oe| 1s:sc| ve-so| osos|__+_|_s4_ [_ ss |___|____ | |_____ [zasoggas| zaogoss| _— | |[s | | | }i}s}m} | _I T lel | L | | | | | |_____uaasaac| asenaag| ...
    ... Glinovita prašina — ||__ _ v71.60 _I _E 80 _— Uo _ || _ P 768 73.50 7510 CPT2S-19 NPV/]·ŽŽ@ 73,40 ___ _ || V72.50 CPr5 —| __ _71.30 _71.5 _ _ OMOI m so | __v71,50 I _— __v72410 _O „72.00 60 __ . 7140 - ZS-3 (65.62) _70.10m KOTA MALE VODE ZS-10 (68.70) ZS-12 (67.89) %Au„;l?()šgm Ckd=1.5MPa, - Ck;_šč”#š@x ...
    ... 2010 |KARTIRAO V. Maletić, dipl.ing.geol. KOTA (mnm) ZAVR[ENO 03.05.2010. |CRTAO Luka Malenov 1:100 FaJEE: s Šlo|ž} |MB < z= 5 s o|e ts < F 5 o so olel| T| |. ŠSlms|adloš Pž a|8|z|5|NH S x u |< [ruj u a [=} 5 š% LITOLOŠKI OPIS •)|| Ž Dmu | — ; P š ; 7 mnm'! m | m = = mm| #| m|m | m 0 i ...

  • Процена емисије гасова са ефектом стаклене баште као последице енергетске активности

    Горана Остојић (2024)
    Рад се бави анализом и проценом емисија гасова са ефектом стаклене баште, са посебним акцентом на емисије које настају као последица енергетских активности. Ефекат стаклене баште представља природни процес који је неопходан за одржавање живота на Земљи, али антропогене активности, попут индустријске производње и сагоревања фосилних горива, значајно повећавају концентрацију ових гасова у атмосфери, што доводи до климатских промена. Рад истражује узроке, последице и могућности за смањење емисија гасова, као и развој стратегија за ублажавање негативних ефеката на животну ...
    емисија гасова, ефекат стаклене баште, енергетске активности, климатске промене, мобилно сагоревање, стационарно сагоревање
    ... CBOTr BHCOKOT cajp:kaja yrJbeHuKa. Kaja ce yraJb caropeBa, ocnoGala BenmKe KonHuHHe CO, Kao H npyre mrTeTHe CyrcTaHTIe, yKJbyuyJyhuM cyMmop-maokcuj (SO>)) H a3oTHe oKcHJe (NOx). 27 Jipouena eMucuje zacosda ca epeKkmoM cmakanene 0aume Kao noceQuue enepoemcke akmuseHocmu OBH TacOBH HC CaMO Ja ...
    ... y TpaHCHOPpTHOM CeKTOpy. CaropeBame Ha(Te ocnmo0aba COp, kao H MerarH (CHa) H Npyra opraHcka HcHMapePa. HadQra rakolje npoM3Bo)H CyMHop-HMoKcHN (SO>) H aaoTHe oKcHe (NOx), kojH Mory MonpHHeTH 3arabeP>y Ba3nyXxa H 3JpaBCTBeHHM rpoOneMuMa. IIopej eMucHja racoBa ca c(DeKTOM cTakKJIeHe Oamrre, e ...
    ... caMO 3a Mepebbe CO> 30o0r BHCOKHX TPOIHIKOBA, aJIH MO)KC ce CIIpoOBecTH aKO Cy MOHHTOPpH Beh HHcTaJmipaHuH 3a Mepebbe HpyruHx aarabaBaua Kao mro cy SO> a NOx. KoHruHyupato rıtpahem• je KOpHCHO 34 CarOpeBabbe uBpCTHX ropHBa rJie Je TeOXe MepHTH IIpOTOK TOpHBa, HJIH Kajia Cy TOpHBa BeOMa BapuHjaOuJHa ...

  • Uniaxial compressive strength test before and after standard fire test on rock mass

    Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)
    ... approximately equal. Testing uniaxial compressive strength of samples (7-12) after standard fire test was not possible because samples cracked so much that they disintegrated even before application of force on the hydraulic press. In Figure 5 samples after standard fire test are shown. ...

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)
    Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...
    optimization, O-Pitblast, drilling, blasting, fragmentation size