Претрага
830 items
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Uticaj geološke neizvesnosti u razvoju rudarskih projekata
Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...... karbonatne rude (48%) je svrstan u B kategoriju. U B kategoriju su uvršteni delovi rudnog tijela koji su okontureni na osnovu istražnih bušotina u kvadratnoj mreži sa udaljenošću bušotina do 75 m (izvedena istražna mreža je ~ 70.5*70.5 m) i po dijagonali ove mreže. Na B kategoriju, do isklinjavanja rudnog ...
... udaljenost istražnih radova zadovoljava uslove za B kategoriju. Struktura bilansnih rezervi u konturi kopa po kategorijama je sledeća: Limonit (Fe > 32%) Karbonatna ruda gvožđa (Fe > 10%) A kategorija 43% A kategorija 22% B kategorija 460% B katagorija 54% Ci; kategorija 11% Ci kategorija 24% ...
... A, B, Ci, Co, Di i D» (Pravilnika o klasifikaciji i kategorizaciji rezervi čvrstih mineralnih sirovina i vođenju evidencije o njima). Ova regulativa nije na isti način poznavala pojmove mineralni resursi i rezervi (iz svetskih standarda). Rezerve čvrstih mineralnih sirovina kategorija A, B, Ci; ...Petar Marković, Dejan Stevanović, Mirjana Banković. "Uticaj geološke neizvesnosti u razvoju rudarskih projekata" in XI Međunarodna konferencija "Ugalj i kritični minerali 2023", CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Mehanizam nastanka bjelasičke klipe u internim Dinaridima severne Crne Gore
Katarina Stefanović (2024)Bjelasička klipa predstavlja segment Internih Dinarida na području severne Crne Gore. Područje obuhvata tektonski kontakt Drinsko-ivanjičke jedinice i Istočnobosansko-durmitorske jedinice, pri čemu se na širem području nalaze i jedinice Prekarst i Zona bosanskog fliša. Tektonska klipa Drinsko-ivanjičke jedinice, odnosno bjelasička klipa, kao i generalna tektonska evolucija područja u kom se ona nalazi, nisu izučeni u adekvatnoj meri. Stoga je cilj ovog rada pribavljanje novih podataka o tektonskoj evoluciji bjelasičke klipe, koji mogu biti značajan prilog za bolje poznavanje geodinamičke ...Interni Dinaridi, paleonaponska analiza, bi-direkciona ekstenzija, rased Skadar-Peć, dekstralno smicanje... obuhvata P-B-T metod grupisanja raseda prema sličnim kinematskim svojstvima i zatim nakadne optimizacione funkcije. Slika 5.2 — Primeri kinematskih indikatora kretanja na rasednim površima, uočenih nha terenu. Prvi korak u kinematskoj analizi raseda jeste njihovo sortiranje P-B-T metodom. P-B-T ...
... m) i mnogi drugi. Dok se među jezerima ističu najveće, Biogradsko jezero (Slika 2.2 b) i jezera Pešića, Ursulovačko i Malo Ursulovačko, Šiško i Malo Šiško. Slika 2.2 – a) Bjelasica, pogled sa Žarskog katuna; b) Biogradsko jezero (foto: K. Stefanović). 3. TEKTONSKA EVOLUCIJA PODRUČJA Istraživano ...
... · a |_ ·• : · • / e ~ N i a |Axia zz N=1%6 b |xia N-1 Planes N Weighted Histogram Eual Aresi (Suikc) Peak: 24,6% (Schmidt) _— Class: 22,5* – 45% PA | Slika 5.1 — Primeri analiza urađenih u programu SperiStat3. a)Konturni dijagram; b)Tačkasti dijagram, c) Rozeta pružanja; d)Rekonstrukcija ...Katarina Stefanović . Mehanizam nastanka bjelasičke klipe u internim Dinaridima severne Crne Gore, 2024
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Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction... borehole (Krupaja Spring, thermal spring, and borehole B-1). Sustainability 2023, 15, 11146 4of14 Karstification bl,depih Thermal spring Borehole B-1 Figure 3. Krupaja system phenomena (Krupaja Spring, thermal spring, and borehole B-1). Borehole B-1 log according, to video-endoscopy, thermal logging ...
... Serbia _+ r ? F| . o s 5 ing Borehole B-1 [0] ! Krupaja spring = 5 Pz h E [ % < Fj | |-} ~+ 0a |55] Figure 1. Geographic location of the Krupaja karst system with micro location of (ML): Karst spring, thermal spring, and borehole B-1. The Krupaja Spring is a strong spring ...
... 17 Krupaja Spring, 57 0.3 26.1 0.7 Table 4. Results of ŽH radioactive isotope content test in thermal spring, and B-1 borehole. Radioactive Isotope ŠH (TJ) (+/—) 1 Sigma Borehole B-1 3.9 0.3 Krupaja thermal spring, 1.7 0.2 During the high flow period, young, freshly infiltrated water primarily ...Ljiljana Vasić, Saša Milanović, Tina Dašić. "Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)" in Sustainability, MDPI AG (2023). https://doi.org/10.3390/su151411146
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Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic
Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...... respectively B1 to B6 in B, and C1 to C5 in C. At the second level of synthesis, A, B and C parameters are synthesized into the M (Figure 4).Energies 2020, 13, x 9 of 15 Figure 4. Hierarchical structure of fuzzy composition. Partial indicators of optimal method of selection, A, B and C, are presented ...
... Part of the Model The synthesis of partial indicators (A, B, C) into one (M) is performed by fuzzy composition, which is a model that provides the structure of indicators-influencing M performance. In other words, if the influence indicators A, B and C are presented as fuzzy numbers [20], their composition ...
... C4—very high, C5—low, a GL method is obtained. Partial indicators of optimal method of selection, A, B and C, are presented as membership function µ: A = (µA 1, . . . , µA j, . . . , µA n); B = (µB 1, . . . , µB j, . . . , µB n); C = (µC 1, . . . , µC j, . . . , µC n); (2) M assessment is obtained ...Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic" in Energies, MDPI AG (2020)
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Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks
Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana (2013)Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks" in 64rd Annual Meeting of the International Committee for Coal and Organic Petrology (ICCP) Book of Abstracts, Sosnowiec, Poland:University of Silesia, Sosnowiec (2013): 108-109
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Microemulsion with aromatic oil as cleaner media for electropolymerisation
Abstract Microemulsion polymerization is widely used as a cleaner alternative way to prepare intrinsically conductive polymers. We studied isothermal phase diagrams for microemulsions of the electropolymerizable heterocyclic aromatic oil 3,4-ethylenedioxythiophene (EDOT), aqueous LiClO4 solution and alkyl polyethoxylate. Our specific goal was to assess the effect of LiClO4 salt on the phase behaviour. The phase behaviour was characterized by stepwise titration and microscopic analyses. Here we found that the increase of the concentration of LiClO4 salt shifts the microemulsion region ...M. Ilić, F.-H. Haegel, S. Zlatanovic, N. Potkonjak, B. Simonovic. "Microemulsion with aromatic oil as cleaner media for electropolymerisation" in Environmental Chemistry Letters, Springer Science and Business Media LLC (2005). https://doi.org/10.1007/s10311-005-0101-3
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Palinomorfe sa lokaliteta Gostuška reka (Stara planina)
Ivan Rutović (2024)U radu su prikazani rezultati palinološkog istraživanja permsko-trijaskih sedimenata sa lokaliteta Gostuška reka. Palinološki kompleksi su detaljno analizirani, što je omogućilo morfološku, taksonomsku i paleoekološku identifikaciju palinomorfi. Istraživanje je pokazalo prisustvo velikog broja spora i polena golosemenica, dok je polen skrivenosemenica zastupljen u manjem procentu. Na osnovu paleoekoloških analiza, zaključeno je da je tokom formiranja sedimenata na lokalitetu vladala aridna klima, sa povremenim vlažnim fazama koje su omogućavale razvoj močvarne vegetacije.... (00)00076-2 4nđelković J., Krstić B., Bogdanović P., Jadranin D., Milenković P., Milošaković R., Fotić P., i Jovanović LJ., 1969: Osnovna geološka karta SFRJ – Pirot 1:100 000. Beograd: Zavod za geološke i geofizička istraživanja. 4Anđelković J., Krstić B., Bogdanović P., Jadranin D., Milenković ...
... sporae dispersae des neiderrheinischen Zechsteins. — Fortschr. Geol. Rheinid. U. Westf, Krefeld, str. 6 — 24. Tvančević B., Savić S., Sabovljević M., Niketić M., Zlatković B., Tomović G., Lakušić D., Ranđelović ., Ćetković 4., Pavićević D., Krpo–Četković J., Crnobrnja-Isailović J., Puzović S. ...
... rpepanta (CC BY-NC-ND) AyTOpcTBO — HEKOMePIHJaJIHO — J(eJ1HTH IIOJ{ HCTHM yCJ1OBHMa (CC BY-NC-SA) Ayropcrno — 06e ripepajta (CC BY-ND) . i B O B | AyTOpcTBO — J(eJIHTH ITOJ( HCTHM ycJ1OBHMa (CC BY-SA) (Qaokpyotcume cao jeOHy oO wecm nonybenux nuujenHuyu. Kpamak onuc utyeniyu je cacmasenu ...Ivan Rutović. Palinomorfe sa lokaliteta Gostuška reka (Stara planina), 2024
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Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija
Dragana D. Đurić (2019)U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...... skeletni elementi guštera opisani u ovom radu. A – premaksila, B – maksila, C – dentale, D – parietale, E – frontale, F – postfrontale, G – palatinum, H – pterigoid, I – jugale, J – kvadratum. A,B,C,D,E,F,G,H,I,J – spoljašnja strana, A’,B’,C’,D’,E’,F’,G’,H’,I’,J’ – unutrašnja strana, A’’ – bočno. (iz ...
... istaknutiji u poređenju sa B. bufo (sl. 49a). Preacetabularna jama jasno uočljiva a proksimalni nastavak (ala ilii) je nešto tanji i duži nego kod B. bufo. Skapula ima ravnomerno razvijene pars glenoidalis i pars acromialis, ponekad je razvijena i fossa supraglenoidalis (kod B. calamita mnogo razvijenija ...
... Vračević, premaksila: a – labijalno, b – lingvalno. NH-115/3. Sl. 2a, 2b. Latonia gigantea (Lartet, 1851); Vračević, maksila: a – labijalno, b – lingvalno. NH-115/5. Sl. 3a, 3b. Latonia gigantea (Lartet, 1851); Vračević, fragment maksile: a – labijalno, b – lingvalno. NH-115/2. Sl. 4a, 4b. ...Dragana D. Đurić. Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija, Beograd : Rudarsko-geološki fakultet, 2019
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Увођење доменских и семантичких маркера за област рударства у српске електронске речнике
... 16 И в ан О б р ад о в и ћ , А л ек с ан д р а Т о м аш ев и ћ , Р ан к а С тан ко в и ћ , Б и љ ан а Л ази ћ 1 5 4Табела 4. Резултати обраде текстова за рударски корпус Тип текстова Б р о ј те к ст о в а Б р о ј р еч ен и ц а Б р о ј р еч и Б р о ј р аз л ...
... при- казани су постојећи и новопредложени доменски маркери значајни за област рударства. И в ан О б р ад о в и ћ , А л ек с ан д р а Т о м аш ев и ћ , Р ан к а С тан ко в и ћ , Б и љ ан а Л ази ћ 1 5 0Табела 1. Доменски из области рударства Маркер Опис Статус Примери +Mining Рударство ...
... и примерима приказана је у табели 3, заједно са примерима употребе пос- тојећих маркера. И в ан О б р ад о в и ћ , А л ек с ан д р а Т о м аш ев и ћ , Р ан к а С тан ко в и ћ , Б и љ ан а Л ази ћ 1 5 2Табела 3. Семантички маркери за област рударства Маркер Опис Статус Примери ...Иван Обрадовић, Александра Томашевић, Ранка Станковић, Биљана Лазић. "Увођење доменских и семантичких маркера за област рударства у српске електронске речнике" in Научни састанак слависта у Вукове дане - Српски језик и његови ресурси: теорија, опис и примене, Београд : Међународни славистички центар на Филолошком факултету, Филолошки факултет (2017). https://doi.org/10.18485/msc.2017.46.3.ch10
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Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...... for the R indicator, analyst number 1 assigned it 70% to grade ‘A’ and 30% to grade ‘B’. For indicator M he assigned 40% to grade ‘A’ and 60% to grade ‘B’, while for indicator S, he assigned to grades ‘A’ and ‘B’ 30% to 70%, respectively. The other five machines were also evaluated following the same ...
... and the results are shown in Tables 4 and 5. Table 4. Results of questionnaire for new machines. Analyst B1-N B2-N B3-N ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ 1. R 0.7 0.3 0.8 0.2 0.6 0.4 M 0.4 0.6 0.7 0.3 0.5 0.5 S 0.3 0.7 0.6 0.4 0.6 0.4 2. R 0.6 0.4 0.6 0.4 0.3 0.7 M 0 ...
... 475 0 0 0 Energies 2019, 12, 4044 11 of 18 Table 5. Results of questionnaire for old machines. Analyst B1-O B2-O B3-O ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ 1. R 0.6 0.4 0.7 0.3 0.8 0.2 M 0.6 0.4 0.6 0.4 0.4 0.6 S 0.3 0.7 0.5 0.5 0.4 0.6 2. R 0.9 0.1 0.5 0.5 0.2 0.8 M 0 ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
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Microstructural and magnetic properties of electrospun hematite/cuprospinel composites
Phase composition, microstructural and magnetic properties of electrospun hematite/cuprospinel composites were investigated. Samples were synthesized starting with 0 to 10 mol% of copper relative to iron. The round shape of reference electrospun fbres was preserved upon their heating up to 600 °C in air, whereas at 700 °C hollow substructure was additionally formed. In these reference samples the presence of hematite phase was detected by XRPD. A small amount (traces) of Fe3O4 /γ-Fe2O3 was also found, due to the ...Electrical and Electronic Engineering, Condensed Matter Physics, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic MaterialsMira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić. "Microstructural and magnetic properties of electrospun hematite/cuprospinel composites" in Journal of Materials Science: Materials in Electronics, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s10854-020-03526-0
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Seasonal Variations of the Zapadna Morava River Water Quality
The water samples collected from four localities of the middle course of the Zapadna Morava River during 2020 were analyzed via the selected physicochemical parameters with the aim to estimate the quality of surface water. According to the results of selected physico-chemical parameters (pH, conductivity, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand), analyzed surface water show a good chemical status, while the values of nutrient content (nitrate, nitrite, ammonium ion, total phosphorus) indicated the poor chemical status especially ...Nebojša Đ. Pantelić, Jana S. Štrbački, Goran Marković, Jelena B. Popović-Đorđević. "Seasonal Variations of the Zapadna Morava River Water Quality" in Zbornik radova Savetovanja o biotehnologiji sa međunarodnim učešćem (Čačak, 12-13. mart 2021), University of Kragujevac, Faculty of Agronomy (2021). https://doi.org/10.46793/SBT26.357P
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Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks for the microscopy of carbon materials working group of the ICCP
Predeanu G., Panaitescu C., Bălănescu M., Bieg G., Gómez Borrego A., Diez M.A., Hackley P., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodrigues S., Singh A.K., Varma A.K., Zdravkov A., Životić Dragana (2015)Predeanu G., Panaitescu C., Bălănescu M., Bieg G., Gómez Borrego A., Diez M.A., Hackley P., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodrigues S., Singh A.K., Varma A.K., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks for the microscopy of carbon materials working group of the ICCP" in International Journal of Coal Geology 139, Amsterdam, Netherlands:Elsevier BV (2015): 63-79. https://doi.org/10.1016/j.coal.2014.07.011
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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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Израда хидрогеолошких објеката за потребе захватања подземних вода из алувијона Саве на локацији Мајур (Шабац)
Лука Обрадовић (2024)За потребе формирања изворишта за водоснабдевање фабрике у селу Мајур (град Шабац) технолошком, техничком, санитарном и водом за потребе противпожарне заштите,спроведена су примењена хидрогеолошка истраживања која су обухватила израду две истражне бушотине ЗКИБ-1 и ЗКИБ-2 ,директном методом бушења, са уградњом пијезометарске конструкције и израду једног истражно-експлоатационог бунара. Бунар је израђен реверсном методом бушења уз примену чисте воде као радног флуида.Пројектовани бунар је дубине 30 метара чији капацитет износи 32,67 l/s. Захвата подземне воде формиране у овкиру алувијаних слојева реке ...... ceeep, NE - ceeepoucmok, E - ucmok, SE - jyeoucmok, S}/ - jveosanaoa, !/ - aanao, NM - ceaeposanao, b – 6psuna eempa, U – uecmuna aempa Mep N NE E SE s SW W NW Tonjn. b J|b J |b J | b U, b U|bE J |b J b u 2000 |2,6 89 |2,6 203 )|3,3 221|3,| SI | 2, 46)2,5 90 |3,0 201 |3, 3 142 2001 3, 74 |2,7 188 ...
... [] [] ”[] [] T T I I I I I TT1 — = B E E R E E E E : v M i o „ u o „ o | o . . „ o „ . „ o „ . „ o „ . „ o „ . „ „ „„ L „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ o L L L D D || 6 N R I B E R I E B I B A B M I „ p v ?g D o O . 2 0 . 00. 0 0 ...
... 63 JIHTEPATVPA 1. MunaHonBHh C., IIerpoBHh B., Bacah Jb., MapaHonBuHh B., BojgHonBHh II., 2023 : IIpojekar rpHMeMĐeHHX XHJIpOTeOJIOIIKHX HCTpax)KHBaMba H3BOpHirTa „3opka-KepaMuka“ 2. MuznaHonBuh C., IIerpoBHh B., BacaHh Jb., MapaHonpBuh B., BojuonBBh I1., 2023 : TexHHuku H3Bemrraj o HapaXui ...Лука Обрадовић. Израда хидрогеолошких објеката за потребе захватања подземних вода из алувијона Саве на локацији Мајур (Шабац), 2024
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On the distribution modulo 1 of the sum of powers of a Salem number
Dragan Stankov (2016)It is well known that the sequence of powers of a Salem number θ, modulo 1, is dense in the unit interval, but is not uniformly distributed. Generalizing a result of Dupain, we determine, explicitly, the repartition function of the sequence , where P is a polynomial with integer coefficients and θ is quartic. Also, we consider some examples to illustrate the method of determination.Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "On the distribution modulo 1 of the sum of powers of a Salem number" in Comptes rendus Mathematique (2016). https://doi.org/10.1016/j.crma.2016.03.012
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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 ...... positions (273 nm and 369 nm) (Figure 5 B). In UV spectra ofhaemoglobin, in the presence of all applied concentrations of aluminium (1, 5, 1OmM), intensity of characteristic peaks decreased in a dose dependent manner (Figure 5 B). Figures 5 A and B shows only UV spectra in a presence ofIO0mM ...
... located at· the centre of the b{ndmg cleft study related enzymes. As all aspartic proteinases between the domains. One of two Asp residues has to pepsin molecule consist of two homologous lobes · be protonated and the other deprotonated, for the composed predominantly of B-sheets separated by a protein ...
... demonstrate that the treatment with 10mM Al ions does not cause noticeable changes in its conformation as shown in Figure 6 B. The both spectra of haemoglobin (Figure 6 B, curve 1) and haemoglobin treated with 10mM Al ions (Figure 6 13+ | EAS –—'S—> EA+P Scheme 1. Reaction scheme for n ...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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Stanje i perspektivnost vodosnabdevanja Obrenovca i naselja opštine posle poplava, 2014. godine
Obrenovac i okolna naselja su tokom 2014. godine zbog poplava u Srbiji pretpeli veliku materijalnu štetu, a pored brojnih privrednih preduzeća ozbiljno je bio ugrožen i sistem vodosnabdevanja. Izvorište „Vić bare“ za vodosnabdevanje grada u selu Zabrežje, na Savi, u potpunosti je potopljeno, a vodovodna mreža, u pojedinim delovima već veoma stara, dodatno je oštećena. Poslednjih nekoliko decenija kao glavni razlozi za probleme u vodosnabdevanju Obrenovca isticane su nedovoljne rezerve podzemnih voda na izvorištu. Novijim istraživanjima utvrđene su rezerve ...... available at: www.dr.rgf.bg.ac.rs B. HAJDIN i dr. STANJE I PERSPEKTIVNOST VODOSNABDEVANJA OPŠTINE... TEHNIKA – RUDARSTVO, GEOLOGIJA I METALURGIJA 68 (2017) 5 675 Stanje i perspektivnost vodosnabdevanja opštine Obrenovac posle poplava 2014. godine BOJAN B. HAJDIN, Univerzitet u Beogradu, Stručni ...
... podze- mnih voda, Beograd, 1997. [3] Stevanović Z, Hajdin B. Elaborat o rezervama podzemnih voda izvorišta „Vić bare“ u Zabrežju za vodosnabdevanje Obrenovca. Fond RGF, Departman za hidrogeologiju, Beograd, 2008. [4] Polomčić D, Hajdin B, Stevanović Z, Bajić D, Hajdin K. Groundwater management ...
... Heidelberg, 2013. [5] Hajdin B, Dokmanović P, Stevanović Z, Hajdin K. State of art of Vić Bare Source for Obrenovac Water Supply. Regional IWA Conference on groundwater management in the Danube river basin and other large river basins, Beograd pp. 217-225, 2007. [6] Hajdin B, Polomčić D, Stevanović ...Bojan Hajdin, Dušan Polomčić, Dragoljub Bajić. "Stanje i perspektivnost vodosnabdevanja Obrenovca i naselja opštine posle poplava, 2014. godine" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2017). https://doi.org/10.5937/tehnika1705675H
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Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181
Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)... survey campaigns 2018–2019 Fig. 7 Displacement vectors obtained from UAV imaging after 2018 and 2019 campaigns 232 B. Abolmasov et al. References Abolmasov B, Milenković S, Jelisavac B, Vujanić V, Pejić M, Pejović M (3–8 June, 2012) Using GNSS sensors in real time monitoring of slow moving landslides-a ...
... 2nd American symposium on landslides and engineered Slopes, vol 2, pp 1381–1385. Banff, Canada. Taylor & Francis Group, London Abolmasov B, Milenković S, Jelisavac B, Đurić U, Marjanović M (2014) IPL Project 181: study of slow moving landslide umka Near Belgrade, Serbia, In: Sassa K, Canuti P, Yin Y ...
... safer geoenvironment, proceedings of 3rd World Landslide Forum, vol 1, pp 75–80. Springer International Publisher Abolmasov B, Milenković S, Marjanović M, Đurić U, Jelisavac B (2015) A geotechnical model of the Umka landslide with reference to landslides in weathered Neogene marls in Serbia. Landslides ...Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić. "Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181" in Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-60196-6_14
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Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions
Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák. "Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions" in Journal of Solid State Chemistry, Elsevier BV (2015). https://doi.org/10.1016/j.jssc.2015.06.027