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Упит dcterms_subject_txt:Wadi ash-shati region

448 items

  • Osnovi hidrogeologije

    Petar Dokmanović (2021)
    hidrogeologija, atmosferska voda, površinske vode, podzemne vode, vodni bilans, poroznost stena
    ... Meteorske linije voda različitih regiona, razlikuju se od globalne i međusobno (tabela 16.4.6.2). Slika 16.4.6. Globalna meteorska linija voda: δD = 8δ18O + 10 [5] Tabela 16.4.6.2. Linearni odnosi δD i δ18O kod meteorskih linija voda pojedinih svetskih regiona [51, 20 – delim ...
    ... Zajedno sa površinskim i atmosferskim vodama, one učestvuju u sveukupnom kruženju vode u prirodi i formiranju vodnog bilansa naše planete i njenih regiona. Na svom putu ka podzemlju ostvaruju kompleksnu interakciju sa zemljištem, vegetacijom, mikroorganizmima. U zemljinoj kori (geološkoj sredini), podzemne ...
    ... osnovna životna namirnica i uslov za opstanak Čoveka, koji je oduvek smišljao načine za pronalaženje kvalitetnih voda, posebno u aridnim (sušnim) regionima. Sa razvojem civilizacije, ljudi su, pored zahvatanja izvorskih i rečnih voda, počeli da prodiru i u zemljinu unutrašnjost (bunarima, oknima i dr ...

  • Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia

    Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)
    ... in Serbia. Project started after the official signing ceremony at the opening of the 2nd Regional Symposium on Landslides in the Adriatic Balkan Region (ReSyLAB 2015), which was held in Belgrade, Serbia 14–16 May 2015. Executive Director of International Consortium on Landslides Prof. Kyoji Sassa ...

  • Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia

    Predrag Radović, Miloš Radonjić, Emmanuel Billia (2020)
    Finds of Pleistocene rhinoceros are rare in Serbia, and only one species (the woolly rhinoceros Coelodonta antiquitatis Blumenbach, 1799) has been reported so far. The current paper presents the dental material of an extinct so-called Hundsheim rhinoceros, Stephanorhinus hundsheimensis Toula, 1902 from Bogovina Cave (East ern Serbia). Both the morphological and metric characteristics of the teeth are consis tent with the attribution to S. hundsheimensis. Unfortunately, the rhinoceros material originated from an uncertain geological context, so there is no ...
    rhinoceros, Stephanorhinus hundsheimensis, Serbia
    ... 1997). DISCUSSION AND CONCLUSION The genus Stephanorhinus Kretzoï, 1942, comprises several extinct rhinoceros species that lived in the Palaearctic region during the Neogene to Quaternary. All members of the genus were doli- chocephalic, two-horned rhinoceroses, with pro- nounced molarization of premolars ...
    ... were later reassigned to Dicerorhinus etruscus (Falconer) (=Stephanorhi- nus etruscus [Falconer]) (Belyaeva and David, 1975). In the South Caucasus region, S. cf. hund- sheimensis was reported from the latest Villafran- chian site of Kurtan in Armenia (Mkrtchyan et al., 2011), and S. hundsheimensis ( ...
    ... 16 Billia, E.M.E. 2007. First records of Stephanorhinus kirchbergensis (Jäger, 1839) (Mammalia, Rhinocerotidae) from the Kuznetsk Basin (Kemerovo region, Kuzbass area, South-East of Western Siberia). Bollettino della Società Paleontologica Italiana, 46(2-3):95-100. Billia, E.M.E. 2008. Revision of ...

  • Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process

    Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)
    Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...
    DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker
    ... 13of 18 293, 296, 304, 314, 335, and 366 nm, with maximum emission at 366 nm and intensity of 2.6 x 10 3 W/cm2 in the visible region and 1.4 x 10 Ž W/cm2 in the UV region). In order to investigate the adsorption of selected B-blockers on the surface of the material, a solution of the corresponding ...
    ... progress and regulate the degradation pathways. The obtained results can Namely, the absorption maximum of the used lamp corresponds to the UV/ A-B region of he spectrum. As shown in Figure 9a, MET and NAD expressed 10% and 15% degradation after 120 min. DF of separate solutions offers slight removal ...

  • Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints

    Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski (2024)
    Apuseni-Banat-Timok-Srednogorie belt, danubicum, paleomagnetism, oroclinal bending

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    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 ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... Because residues occupy the cleft to which admittance is pepsin has been well structurally characterized, it restricted by a hinged flexible flap region [1-6]. The represents an appropriate model to study the effects of pepsin consists of 326 residues with molecular weight — metal ions on structure ...
    ... causes noticeable changes in infrared spectra of pepsin. '"Typical features were: the disappearance of the vibration bands in the 3500—2750cm ' region, especially bands at 3256 and 2920cm '; decrease of intensity of the vibration band at 1600cm '; the disappearance of the vibration bands in ...

  • Geonasleđe Golije i Peštera

    Ljiljana V. Grujičić-Tešić (2017-09-01)
    Sprovedena istraživanja u ovoj studiji obuhvatila su izdvajanje, opis, evaluaciju i valorizaciju objekata geonasleđa u cilju razvoja istraživane oblasti sa stanovišta geonauka, geoturizma i geoekologije. Na izučavanom području objekti geonasleđa su evidentirani, interpretirani, vrednovani i kategorisani, dat je predlog promocije geoobjekata, i na kraju predložena dopuna inventara objekata geonasleđa Srbije.U protekle četiri godine, na kompleksu geotopa Golije i Peštera istražena su geološka svojstva stena (tip stene, starost, fosilni sadržaj, morfološke i hidrogeološke karakteristike itd.), na osnovu čega je bilo ...
    geodivezitet, geonasleđe, geoturizam, geokonzervacija, Golija, Pešter
    ... (Dragović, 2004). Na užem području Peštera ponire više potoka koji u prolećnom period formiraju mala, privremena jezera. Najveća ponornica u ovom regionu, najduža ponornica u Srbiji, je reka Boroštica (www.panacomp.net). U svom toku reka pravi razne meandre i ponore što joj daje posebnost kao objektu ...
    ... proučavajući Dajićko jezero dao je značajan doprinos poznavanju flore i faune na Goliji. Geomorfološkim i hidrogeološkim izučavanjima prostranog regiona Golija - Pešter uključujući sjenički basen bavili su se Cvijić (1924), Luković (1939), Đalović (1975 i 1976), Zeremski (1960, 1965, 1983), Komatina ...
    ... senonskih sedimenata i rudistne faune u okolini Ivanjice. Pejović (1952 - 1986) je dala značajan doprinos stratigrafiji gornje krede šireg regiona uključujući i Staru Rašku na osnovu analize rudistnih školjki i gastropoda. Rampnoux (1964, 1970) je proučavao kredne rudiste i foraminifere okoline ...

  • Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry

    Steven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti (2021)
    Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...
    self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalization

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... Martinović, M. Geološke karakteristike i potencijalnost geoloških resursa regije Kolubare, Mačve i Podrinja. Posebna Izdanja Geološkog Zavoda "Gemini" i Region, Eds. Filipović, 1.; Privredna komora-Valjevo, Beograd, Srbija, 1996. Mojsilović, S., Filipović, L., Baklajić, D., Đoković, 1., Navala, M. Osmovna ...

  • Proučavanje razvića Bihaćkog i Cazinskog basena primenom gravimetrijskih podataka

    Snežana M. ignjatović, Ivana M. Vasiljević, Nevena R. Andrić-Tomašević, Ana S. Mladenović (2024)
    Bihaćki i Cazinski baseni su neogeni baseni, koji pripadaju spoljašnjim Dinaridima i formirani su tokom kasne faze razvoja Dinarida. Ovi baseni su od posebnog interesa zbog svoje geološke prošlosti i potencijalnih strukturnih karakteristika. U istraživanju, primenjeni su gravimetrijski podaci u clju boljeg razumevanja evolucije ovih basena. Primenom različitih postupaka matematičkih transformacija na gravimetrijskim podacima može se ustanoviti gravitacioni uticaj neogenih basena male gustine i mogu se detektovati strukture, koje su potencijalno vezane za njihovo formiranje. U ovom istraživanju, analiza ...
    matematičke transformacije podataka, kontakti, neogeni baseni

  • Microstructural and magnetic properties of electrospun hematite/cuprospinel composites

    Mira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić (2020)
    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 Materials

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... main cause of the stone production decrease in many European countries, especially small and economically undeveloped countries of the Balkan region. This is also the case in Serbia, where limestones were traditionally quarried as dimension stone. The widespread, satisfactory engineering properties ...
    ... and compression of the Gondwanan and Eurasian units. In: Robertson AHEF, Mountrakis D (eds) Tectonic Development of the Eastern Mediterranean Region. Geological Society, London, Special Publications, vol. 260, pp 155178 Karamata S, Krstić B (1996) Terranes of the Eastern Serbia Carpatho- ...

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...
    геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти
    ... modern medical and rehabilitation practices. This paper addressed two sites chosen from previous interdisciplinary research conducted in the Vojvodina region that have different geothermal resources and placed within different urban contexts. Coupling the identified and analyzed geothermal potential with ...
    ... of Vojvodina. On the other hand, the focus of further research regarding the architecture of wellness and spa/medical facilities in the Vojvodina region should be on enhanced comfort (while optimizing the construction and operation costs), building technologies that are based on local production, and ...
    ... al Participation), Vrnjačka Banja, Serbia, 17–20 May 2018; Volume 2, pp. 439–444. 28. Royden, L.H.; Horvaáth, F. (Eds.) The Carpathian-Pannonian Region with Names and Locations in the Basins. In The Pannonian Basin, A Study in Basin Evolution; American Association of Petroleum Geologists Memoiry 45; ...

  • Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study

    Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2023)
    Recently, nanocrystal dispersions have been considered as a promising formulation strategy to improve the bioavailability of the deuterated pyrazoloquinolinone ligand DK-I-56-1 (7‑methoxy-2-(4‑methoxy-d3-phenyl)-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one). In the current study, the freeze-drying process (formulation and process parameters) was investigated to improve the storage stability of the previously developed formulation. Different combinations of lyoprotectant (sucrose or trehalose) and bulking agent (mannitol) were varied while formulations were freeze-dried under two conditions (primary drying at -10 or -45 °C). The obtained lyophilizates were characterized in terms ...
    Pharmaceutical Science
    ... cm ! was assumed to be related to the weak hydrogen bonding between sugar molecules. Five bands in the CH-stretching region were located around 2941 cm !. The fingerprint region between 1500 and 800 cm – con- sisted of distinct and partially overlapping bands originating from CO-stretching, ...
    ... presence of amorphous material with water adsorbed on its surface (Akao et al., 2001). Additionally, six bands around 2900 cm ! (CH-stretching region) from the crystalline trehalose (the bulk material) were replaced by a broad peak in lyophilzate T, similarly as in Wolkers et al. (2004). As ...

  • Analiza mogućnosti primene tehnologije hvatanja i skladištenja ugljenika (CO2) na objektima Nis-A

    Isidora Veljanoski (2024)
    U ovom radu opisana je primena CCUS tehnologija u kompaniji NIS i na koji način treba da se optimizuje da bi projekat bio rentabilan.U prvom i drugom poglavlju opisani su energetski trendovi i tranzicije, razvojni mehanizmi za regulisanje emisije gasova staklene baste i o ugljen-dioksidu kao hemijskom jedinjenju i šta je to CCUS.U trećem, četvrtom i petom poglavlju je detaljnije opisano izdvajanje, hvatanje, transport i skladištenje ugljen-dioksida.Šesto poglavlje i sedmo poglavlje obuhvataju rešenja za razvoj i realizaciju CCUS projekata ...
    energetski trendovi, ugljen-dioksid, CCUS, izdvajanje, hvatanje, transport i skladištenje CO2, ležište, ekonomija projekta
    ... CO», pored karakteristika samog ugljen-dioksida, jeste zapremina sedimentnih stena na odgovarajućoj dubini, temperaturi ı pritisku za određeni region ili formaciju. Geološko modeliranje i korišćenje informacija u simulaciji rezervoara jesu najprecizniji način za procenu kapaciteta skladištenja ...
    ... kapacitet izdvajanja 1200000 t ugljen-dioksida po godini, o efikasnosti izdvajanja je 95% i projekat je relevantan za Rafineriju. 41 CCUS projekti u regionu 1. Cleankerk Tip projekta : capture (fabrika cementa); Početak eksploatacije : 2017; Budžet: 9.237.851C; Ravenna CCS Tip projekta : Capture ...
    ... rizici izazvani promenom makroekonomskih parametara, 7. Adekvatan izbor dobavljača na osnovu istorijskog iskustva, 8. Pružanje usluga kompanijama u Regionu, 9. Traženje novih partnera za realizaciju projekata, 10. Rađenje dodatnih istraživanja. 12101 59 Zaključak Varijanta utilizacije koja se ...

  • Утицај соларне активности на здравље човека

    Каролина Ђукић, Весна Цветков, Весна Дамњановић (2019)
    ... zavisi i od geografske širine i nadmorske visine. Raste sa povećanjem geografske širine, odnosno, polovi primaju više radijacije nego ekvatorijalni regioni jer oko ekvatora magnetno polje Zemlje skreće naelektrisane čestice. Intenzitet zračenja raste sa nadmorskom visinom usled tanjeg sloja vazduha ...

  • Effects of Energy Production and Consumption on Air Pollution in Serbia

    Marija Živković (2019)
    Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...
    energy related emissions, Serbia
    ... necessity of improving efficiency in energy production, transmission, distribution and consumption in the at the global level, or level of the country, region etc 4.  Nowadays the most of attention of is dedicated to reduction of carbon dioxide emission and mitigation of climate changes 5, while other pollutants ...

  • Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji

    Dragan Ignjatović, Vladimir Pavlović (2024)
    Strategija upravljanja mineralnim i drugim geološkim resursima na održivim i holističkim osnovama, služi kao osnova za vladinu politiku vezanu za geološka istraživanja i eksploataciju mineralnih resursa u skladu sa njenim pravnim i regulativnim obavezama. Uspostavljanje Strategije obezbeđuje osnovu za dalji razvoj i ona se realizuje u relevantnim oblastima politike kako bi se postigli postavljeni ciljevi, pri čemu se resursi moraju dobijati i koristiti na održiv način. Strategija treba transparentno da istakne mogućnosti i izazove, stvori preduslove, razjasni uloge i ...
    strategija upravljanja, mineralni resursi, rezerve, rudarstvo, geologija.
    ... proizvodnja mineralnih resursa od 1999. do 2022. godine na osnovu čega se može uočiti jasan trend rasta. Proizvodnja mineralnih resursa po godinama i regionima 20,000,000,000 18,000,000,000 16,000,000,000 14,000,000,000 12,000,000,000 10,000,000,000 8,000,000,000 6.000,000,000 4,000,000 ...

  • Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa

    Mirjana V. Banković (2018-07-13)
    Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...
    tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta
    ... viši od praga selektivnog otkopavanja i vrši se optimizacija podele na regionima između tih intervala, dok oni ostaju fiksirani. Procedura optimizacija u okviru jednog regiona vrši se na sledeći način: (7) Ukoliko visina regiona nije veća od dve minimalne visine podetaže (parametar MinVP), optimizacija ...
    ... podetaža M koji se računa tako što se pretpostavi da će ukupna visina regiona biti podeljena na podetaže maksimalne visine (parametar MaxVP). Posebno, ukoliko prva podetaža bloka ili poslednja podetaža bloka pripadaju trenutnom regionu, njihova visina se dodatno ograničava maksimalnom visinom prve podetaže ...
    ... podetaža N koji se računa tako što se pretpostavi da će ukupna visina regiona biti podeljena na podetaže minimalne visine (parametar MinVP); (10) Za vrednosti k od M do N pokreće se genetski algoritam koji pokušava da podeli region na k podetaža dok se ne nađe optimalno rešenje. Genetski algoritam je ...

  • An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction

    Dejan Ćebić, Nebojša Ralević, Marina Marčeta (2020)
    нелинеарна једначина, 16.ред конвергенције, оптималне методе, подељене разлике