Претрага
767 items
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Testing the energy value of different types of coal by the method of active thermography
In this paper, coal thermograms are presented and analyzed in order to determine their energy value. Two types of coal of different categories, brown and lignite, were selected for active thermographic imaging. The tested coal samples were processed before measurement so that they are similar in dimensions and have two plane-parallel smooth surfaces. The test samples were "primarily" heated under the same conditions and the process of their cooling was monitored by a thermal camera. "Then" they were cooled ...Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković. "Testing the energy value of different types of coal by the method of active thermography" in 9th International Scientific Conference on Defensive Technologies, Belgrade, Serbia, 15-16 October 2020, The Military Technical Institute (2020)
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Identification of alginite and bituminite in rocks other than coal: results of Round Robin Exercises of the Identification of Dispersed Organic Matter Working Group of the ICCP
Kus J., Araujo C.V., Borrego A.G., Flores D., Hackley P.C., Hámor-Vidó M., Kalaitzidis S., Kommeren C.J., Kwiecińska B., Mastalerz M., Mendonça Filho J.G., Menezes T.R., Misz-Kennan M., Nowak G.J., Petersen H.I., Rallakis D., Suárez-Ruiz I., Sýkorová I., Životić Dragana (2017)Kus J., Araujo C.V., Borrego A.G., Flores D., Hackley P.C., Hámor-Vidó M., Kalaitzidis S., Kommeren C.J., Kwiecińska B., Mastalerz M., Mendonça Filho J.G., Menezes T.R., Misz-Kennan M., Nowak G.J., Petersen H.I., Rallakis D., Suárez-Ruiz I., Sýkorová I., Životić Dragana. "Identification of alginite and bituminite in rocks other than coal: results of Round Robin Exercises of the Identification of Dispersed Organic Matter Working Group of the ICCP" in International Journal of Coal Geology 178, Amsterdam, Netherlands:Elsevier BV (2017): 26-38. https://doi.org/10.1016/j.coal.2017.04.013
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Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije
Branko R. Miladinović (2016-04-27)Ugalj predstavlja energent na čijoj osnovi se razvija privreda celog sveta.Zato mu se pridaje velika pažnja u eksploataciji i preradi, bez obzira na mnogeštetne uticaje na životnu sredinu, a posebno na efekat staklene bašte koji sestvara emisijom zagađujućih materija u atmosferu radom termoelektrana naugalj.U Srbiji, resurs koji se danas u najvećoj meri koristi u proizvodnjielektrične energije je ugalj i on učestvuje u proseku sa 70 %. U strukturi ukupneproizvodnje ugljeva, dominiraju lignitski ugljevi sa učešćem od 98 %, a ...Srbija, kameni i mrki ugalj, podzemna eksploatacija, preradauglja, rudničke vode, hemijski sastav, emisija zagađujućih materija, životnasredina... e o rp a A Y Y H e c e M O jy A O K T O P C K YA ~ C e p T a L \~ jy n O A H a c n O B O M : X ~ A P o re o e K o n o w K ~ y c n o B ~ e K c n n o a T a 4 ~ ie K a M e H ~ x ~ M P K ~ X y rJ b e B a C p 6 ~ ie x o ja je M o je ayropcxo A e n o . }J .~ c e p T a L \~ jy c a C B ~ M n p ~ n o 3 ~ ...
... M e n p e r a a C T Y A l I 1 j C K I I 1 M n p o r p a u a r a a n p y r u x B I I 1 C O K O W K O n C K I I 1 XY C T a H O B a , • n a c y p e 3 y n T a T I I 1 K o p e K T H O H a B e A e H I I 1 1 1 1 • n a H I I 1 C a M K p W l I 1 0 / n a ayropcxa n p a s a 1 1 1K O P l l 1 C T I I 1 0 I I 1 ...
... p e n o e C a A P > K a H e Y onafipaaora rn n y n u u e u u e K p e a rn s a e 3 a je A H ~ L \e (C re a t iv e C o m m o n s ) a a x o jy c a M c e o A n Y 4 ~ o /n a . 1 . A Y T O P C T B O 2 . A Y T O P C T B O - H e K oM e p L \~ ja n H o @ Y T O P C T B O - H e K O M e p L \~ ja n H o - 6 e ...Branko R. Miladinović. "Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-04-27)
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Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije
Dragana D. Petrović (2015-12-29)Centralni deo Balkanskog poluostrva je geotektonski veoma složen. Tetis je zatvorentokom gornjeg mezozoika, a ofioliti na zapadu i ofioliti Vardarske zone predstavljajuostatke nekadašnjih okeanskih prostora. Najistočniji deo Vardarske zone razlikuje se odsvih ostalih ofiolita na Balkanskom poluostrvu i karakteriše se najizraženijim suprasubdukcijskimafinitetom. Istočna vardarska zona locirana je u centralom delu Srbije.Na severu se prostire do Apusena u Rumuniji, a na jugu obuhvata cetralni deoMakedonije i Peonias zonu u severnoj Grčkoj. Istočna vardarska zona se nalazi istočnood geotektonske jedinice Kopaonik ...... magnetskih karakteristika u odnosu na susedne paleozojske i trijaske/jurske jedinice kao i dijabaze istočnije od njega (C). Gabro je veoma ispucao i tektonski poremećen. Oblast C, koja je predstavljena dijabazima, odlikuje se visokim vrednostima anomalija, s tim što se ove anomalije mogu dovesti ...
... Gravimetrijske karte analitičkog produženja polja za nivoe a) 500, b) 1000, c) 2000, d) 3000, e) 5000 m, sa položajima profila 75 Slika 31. Geomagnetske karte analitičkog produženja polja za nivoe a) 500, b) 1000, c) 2000, d) 3000, e) 5000 m, sa položajima profila 76 Slika 32 ...
... l’ouverture d’un basin marginal dans les Hellenides internes au Jurassic, Ofioliti 12, 53–70. Beccaluva, L., Bianchini, G., Bonadiman, C., Siena, F., Vaccaro, C., 2004. Coexisting anorogenic and subduction-related metasomatism in mantle xenoliths from the Betic Cordillera (southern Spain), Lithos ...Dragana D. Petrović. "Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-12-29)
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Remontni radovi u bušotini sa dubinskom pumpom
Jovana Milošević (2024)Remontni i stimulativni radovi u naftnom inženjerstvu su radovi koji se primenjuju na bušotinama koje su već u proizvodnji ili potencijalno proizvodnim bušotinama, i u zavisnosti od toga imaju različitu svrhu. Remontni radovi predstavljaju sve radove koji su ograničeni na kanal bušotine, dok se stimulativni radovi odnose pribušotinsku zonu.U prvom slučaju remontni i stimulativni radovi kod proizvodnih bušotina služe za otklanjanje problema i povećavanje proizvodnje bušotine. Dok u drugom slučaju, kod potencijalnih bušotina su ovi radovi namenjeni završnim obradama ...... krive, odnosom prečnika zrna 40 % i 90 % kumulativnog težinskog udela uzorka. (slika &) __D40s _ D90s 10 • C<3- pesak je uniforman; • 3<C<5 - pesak je neuniforman; • C>5 - pesak je vrlo neuniforman. Kumulativni procenat peska 40M040441WHH| 100{(0iTy41 |1 PI0}0410+HH| (0B44190(4|10410 ...
... iii iii diii iduNkaiıı 18 4.1 Kiselinska obrada peščara ........aaaaaaaaaaa a aeaeateaeaeaataktaee 19 4.2 Kiselinska obrada karbonata ............c...aaaaaaa da a aaaanaaaaeeiataaactaattı 20 5. REMONTNI RADOVI NA PROIZVONIM BUŠOTINAMA ... 21 6. PROGRAMIRANJE REMONTNIH RADOVA U NAFTNIM I GASNIM ...
... zrna peska u bušotinu. (slika 7) Fi lt er Gr av el pa ck me dj up ro st or Pe rf or ir an i ke zi ng Fo rm ac ij ki pe sa k C e m e n t _| Gr ve l pa ck — pe rf or ac ij e | Slika 7, PRIKAZ RASPOREDA ZRNA4 GRAPELA IZMEĐU FILTERA I SLOJA, (PETROBLOGWEB, 2016) Osnova ...Jovana Milošević . Remontni radovi u bušotini sa dubinskom pumpom, 2024
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The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>
The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...... bacteriophage. Nature 1970;227:680—685. Dixon M, Webb EC. Enzymes. 3rd ed. London: Longmans; 1970. p 339—308. Segel IH. Enzyme kinetics. New York: John Wiley & Sons; 1975. p 227—272. Nelson DL, Cox MM. Lehninger principles of biochemistry. 4th ed. New York: WH Freeman and Co. 2005. p 160–161. ...
... carried out at 37"C. IR studies Pepsin-AP*' and haemoglobin-AP? | samples were lyophilized and used for the further experiments. "The removal of any traces of water from the samples was insured by drying samples over silica gel over night and heating during 2 hours at 100%C. For infrared ...
... IR spectra of both proteins in KBr matrices recorded at room temperature (25"C). Polyacrylamide gel electrobhoresis (PAGE) Native electrophoresis of pepsin and haemoglobin on 10% polyacrylamide gel carried out at 4'C during 90 min, according to the Laemmli procedure, at pH 8.3 [28]. Wiater ...Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić. "The influence of Al3+ion on porcine pepsin activityin vitro" in Journal of Enzyme Inhibition and Medicinal Chemistry, Informa UK Limited (2008). https://doi.org/10.1080/14756360701841095
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Arhitektonsko-građevinski kamen Crne Gore, stanje i potencijali
Darko Božović, Vladimir Simić (2023)Darko Božović, Vladimir Simić. "Arhitektonsko-građevinski kamen Crne Gore, stanje i potencijali" in Geološki glasnik (2023)
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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 ...... AJAQT — Bpoj HHekca “ OSNA \> Cryngjcku nporpaM \\f\w«?,?c NKO Šx \\?\·\CY KNO ·%Asu s c ?c,y\„ ĆAA Hacnon pana \č*Mmi\Q)·\v\ NLN BNA VA V __W 25 OAMNO N VAN\K, KO N_ i aAR NR hi L'@AL·P\L\«\·\Y_ AMOG ) MegHrop _ Sgoed . MOO q)\\c Me N NA MHijanbyjeM a je mrraMmaHa Bep3Hja MOT 3aBpIHHOTr ...
... 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 ispitivanja – kalcimetrija. 3.1.3. Rezultati optičkih ...
... lokalnu privredu, posebno za industriju građevinskog kamena. A Jo& 9 o ( 55 c O Vrbica | o 4 Risovača/ O +Bl i ~+ i Vene ·'5 J ŽI% Brezo;;rl | Bc u i i \ : ola ? |H o % bVamice Vojkovci — Slika 1. Geografska karta ...Miroslav Radeta. Kvartarni klastiti iz bušotine kod Aranđelovca (rasadnik Mladost), 2024
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Analiza softvera za projektovanje ESP sistema
Aleksandar Sredojević (2024)U momentu kada pritisak na dnu bušotine nije dovoljan da savlada ukupne gubitke pritisaka od dna bušotine do separatora, proizvodnja pomoću ležišne energije nije više moguća i bušotina prestaje sa eruptivnim radom. Kako bi ponovo omogućili proizvodnju fluida iz bušotine, potrebno je primeniti neke od mehaničkih metoda eksploatacije. Najprimenljivije mehaničke metode eksploatacije su: gas lift (GL), dubinske pumpe sa klipnim šipkama (SRP), električne uronjene centrifugalne pumpe (ESP), zavojne pumpe (PCP) i hidraulične pumpe (HP). Jadna od tih metoda koja ...električna centrifugalna pumpa (ESP), proizvodnja fluida, mehaničke metode eksploatacije, Prosper, Pipesim... Carpenter a Baxendeli and Thomas a Fancher and Brown a Hagedorn and Brown b Gray b Asheim b Duns and Ros c Orkiszewski s Aziz et al. c Chierici et al. c Beggs and Brill c Mukherjee and Brill [1 Slika 3-4 Korelacije za režim protoka (Hofstatter, H., 2018) 3.3 Proizvodni potencijal ...
... (Kg/cm*), T-Temperatura na dnu bušotine ("C) (Novčić, S., 2010). Faktor volumena formacije za gas se računa preko sledeće Jednačine: zT 5.2 Bg = 0.00377 · 3 Gde su: Z-Faktor kompresibiliteta za gas (od 0.81 do 0.91), T-Temperatura na dnu [K]| (273.15+*C), P-Pritisak potapanja [psi] (kg/mš ) ...
... pumpanja sa klipnim šipkama, takođe radi na zapreminskom principu proizvodnje ležišnog fluida, ali ne sadrži nikakve ventile (Dunn, L.J., Matthews, C.,M., & Zahacy, T.,A., 1995). Metode pumpanja bez klipnih šipki, kao što naziv sugeriše, ne koriste klipne šipke za rad potapajuće pumpe sa površine ...Aleksandar Sredojević. Analiza softvera za projektovanje ESP sistema, 2024
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Manganese-pyromellitate complex as a precursor for preparation of spinel Mn3O4
Lidija Radovanović, Željko Radovanović, Aleksandar Kremenović, Bojana Simović, Milica V. Vasić, Jelena Rogan (2022)In recent years, thermal decomposition studies of transition metal complexes with benzenepolycarboxylate ligands have become an area of a great importance due to the possibility of obtaining useful metal oxides with desirable electrical, magnetic and catalytic properties [1]. As a contrast to conventional methods for the preparation of metal oxides, such as hydrothermal or sol–gel treatment, thermolysis is faster, more efficient ...Lidija Radovanović, Željko Radovanović, Aleksandar Kremenović, Bojana Simović, Milica V. Vasić, Jelena Rogan. "Manganese-pyromellitate complex as a precursor for preparation of spinel Mn3O4 " in XIV Conference of chemists, technologists and environmentalists of Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Banja Luka, Republic of Srpska, B&H, October 21st-22nd, 2022, University in Banjaluka, Faculty of Technology (2022)
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Polimorfne promene materije nastale mlevenjem minerala
Milan Petrov, Ljubiša Andrić, Milena Kostović, Vladimir Jovanović, Dragan Radulović, Dejan Todorović, Branislav Ivošević (2023)U radu su prikazani rezultati istraživanja iz oblasti usitnjavanja, sakupljani duži niz godina, u Institutu za tehnologiju nuklearnih i drugih mineralnih sirovina. Poznato je da se područja sa frekfencijama preko 3·1011 do 3·1014 Hz nalaze u elektromagnetnom spektru infracrvenog i daleko infracrvenog emitovanog ili apsorbovanog zračenja. U radu su prikazani rezultati kada se materijal i kugle u mlinu nalaze na jednoj od pomenutih frekfencija, što nam omogućava da pomoću Borovog uslova frekfencija pristupimo izračunavanju emitovanih i apsorbovanih molarnih energija ...Milan Petrov, Ljubiša Andrić, Milena Kostović, Vladimir Jovanović, Dragan Radulović, Dejan Todorović, Branislav Ivošević. "Polimorfne promene materije nastale mlevenjem minerala" in X Kolokvijum o pripremi mineralnih sirovina univerzitet u beogradu, Rudarsko-geološki fakultet, 08.12.2023., Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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Keyword-Based Search on Bilingual Digital Libraries
This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović. "Keyword-Based Search on Bilingual Digital Libraries" in Semantic Keyword-Based Search on Structured Data Sources - Second COST Action IC1302 International KEYSTONE Conference, IKC 2016, Springer (2017). https://doi.org/10.1007/978-3-319-53640-8_10
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Knowledge and Rule-Based Diacritic Restoration in Serbian
In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).... linguistic ontology on natural sciences and technology. In Proceedings of Linguistic Resources and Evaluation Conference, pages 1077–1082. Fellbaum, C., Ed. (1998). WordNet: An Electronic Lexical Database. Cambridge, MA: MIT Press. Gelfenbeyn, I., Goncharuk, A., Lehelt, V., Lipatov, A., and Shilo, V ...
... principles for the design of ontologies used for knowledge sharing? International journal of human-computer studies, 43(5-6):907–928. Guarino, N. and Welty, C. A. (2009). An overview of ontoclean. In Handbook on ontologies, pages 201–220. Springer. Guarino, N., Oberle, D., and Staab, S. (2009). What is an ontology ...
... 138–153. Springer. Koeva, S. (2010). Bulgarian wordnet–current state, applications and prospects. Bulgarian-American Dialogues, pages 120–132. Kunze, C. and Lemnitzer, L. (2010). Lexical-semantic and conceptual relations in germanet. Lexical-semantic relations: Theoretical and practical perspectives, ...Cvetana Krstev, Ranka Stanković, Duško Vitas. "Knowledge and Rule-Based Diacritic Restoration in Serbian" in Proceedings of the Third International Conference Computational Linguistics in Bulgaria (CLIB 2018), May 27-29, 2018, Sofia, Bulgaria, Sofia : The Institute for Bulgarian Language Prof. Lyubomir Andreychin, Bulgarian Academy of Sciences (2018): 41-51
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Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research
магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија... of the fi eld measured by the third method is shown in Figure 3.c. As in the previous mea- surement methods, there was no occurrence of linear anomalies along the direction of the acqui- sition. Comparing Figure 3.b. with Figure 3.c, it can be determined that the data quality does not de- pend on ...
... interval. The time intervals for automatic sampling in Fig. 1 Illustration of N-S orientation of traverses. Key: a. zigzag fashion; b. parallel fashion; c. mid-fi eld in parallel fashion. Fig. 2 Illustration of E-W orientation of traverses. Key as for Fig 1. 95 Archaeology and Science 10 (2014)Petković ...
... after the completion of measuring the traverse, circled around test polygon to the op- posite side relative to the second measuring mode (Figure 1.c.). In all three modes, the measurement was start- ed from the same point, the south-west corner of test polygon. Figure 1 After the completion of ...Mirko Petković, Vesna Cvetkov, Branislav Sretenović. "Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research" in Arheologija i prirodne nauke (2014)
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Geofizičko reflektivno sondiranje kao test integriteta betonskog šipa
Jovo Jakišić (2024)Temelj predstavlja izuzetno bitan element svakog građevinskog objekta. Zbog toga je neophodno poštovati odgovarajuće standarde, u projektovanju i izvođenju temeljne konstrukcije.Šipovi predstavljaju jedan od načina dubokog fundiranja tj. temeljenja. Za svaki izvedeni šip pojedinačno neophodno je izvesti kontrolu kvaliteta. Postoji više postupaka kojima je mogućeizvršiti kontrolu kvaliteta, a jedan od njih je test integriteta šipa malom silom, koji je prikazan u ovom radu.Ovaj postupak se izvodi seizmometrijskom metodom, postupkom refleksije, koji je definisan međunarodnim standardom ASTM D5882.Podaci koji su prikazani ...... prostiranja seizmičkog talasa kroz šip mogu se koristiti A/C ili D/C akcelerometri. U slučaju korišćenja A/C akcelerometara vreme bi konstantno trebalo da bude veće od 0.5 s, a rezonantna frekvencija bi trebalo da iznosi približno 30 000 Hz. Kod D/C akcelerometara je neophodno da frekvencija bude veća ...
... BAZE UDAR 2 ŠIPA TADI 8.0 POVRŠ'NAŠ 0 gi08 10.00 m m/5 Slika 1. Prikaz generisanog signala (ASTM D5882) | Reference za ASTM Standard su: - C 469 Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression - D1I98 Methods of Static Tests of Timbers in Structural ...Jovo Jakišić. Geofizičko reflektivno sondiranje kao test integriteta betonskog šipa, 2024
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Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world
Bogoljub Vučković, Bojan Dimitrijević (2023)The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...... m of drilling (figure 2). In both basins, the presence of 4 coal secams was registered, which continuously extend under the Danubce (Fig. 3 a, b, c). In the part of the unique deposit, on OP Drmno and OP Cirikovac, there is also a 5" coal layer (Fig. 3d) which is of small thickness, is at a great ...
... n of 5 separate coal seams in the Kostolac-Kovin coal bearing basin – a) I (red dots) and I (pink dots) coal seams; b) II (black dots) coal layer; c) la coal layer; d) IP coal layer, not balanced The mentioned coal layers are generally not definitively contoured cither laterally or in depth, but ...
... Yinchuam,CHN |I Pretoria, RSA Baltimore, USA » NewYork,USA — SaMkot,PAK — —— I ZD:–C22——.. -I n qq —nz—rr— J :gKRGOINRJČRRRKKKRR=&RRnnypććilirCK—CBogoljub Vučković, Bojan Dimitrijević. "Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world" in 9th International Conference Mining and Environmental Protection, 24–27. May 2023, Sokobanja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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Flyrock induced by blasting in surface mining
Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock induced by blasting in surface mining" in Rudarski glasnik, Beograd : Rudarski institut (2022). https://doi.org/10.25075/BM.2022.05
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Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)... Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia 2 Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32, HR-10000 Zagreb, Croatia JUniversity of Belgrade, Faculty of Pharmacy, Department of Bromatology, Belgrade, Serbia “Department of Mineralogy ...
... room temperature, during which a successful reaction between metal nitrate and sodium hydroxide occurred. Prepared powders were calcinated at 700 "C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. The Rietveld method ...Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić. "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme ; and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja, (2023)
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Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings
Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović (2024)Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović. "Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... Wettersteinkalk (Ladinian, Middle 'Triassic), Northern Limestone Alps, Bavaria and Tyrol. In: Bricker O. P. (Ed.) - Carbonate cements: 185-188, John Hopkins Press, Baltimore. Gianolla P., De Zanche V. & Mietto P. (1998) - 'riassıc sequence stratigraphy in the Southern Alps (Northern Italy): ...
... djeric“orgf.bg.ac.rs 3 Geological, Geophysical and Space Science Research Group of the Hungarian Academy of Sciences, Eotvos University, Pizmany s. 1/c, Budapest 1117, Hungary. 4 Hdvosvolgyi dt 74, Budapest 1021, Hungary. UPaJ Limestone Bt., Andr4ssy Gy. u. 6, Dunakeszi 2120, Hungary. E-mail: f ...
... gabor.csillag.530gmail.com 166 Nagy Z.R. & al. Fig.1 · - A)Main tectonic units in the wider surrounding of the Pannonian Basin. The rec- | !c/e;rćm Plateau _Z tangle outlines the Balaton Highland (after Kovics et LITER al. 2011). B) Geological map 7 Veszprem • TAPOLCA (—~ — BAfly |O ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)