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Упит dcterms_subject_txt:porosityGeneral Computer Science

747 items

  • Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia

    Jelka Krušić , Biljana Abolmasov, Miloš Marjanović (2021)
    The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...
    tecišta, zadržavanje nanosa, RAMMS, validacija

  • In-vitro ispitivanje interakcija dva strukturno slična Rh(III) kompleksa Šifovih baza sa HSA/DNK i molekulski doking

    Aleksandar Mijatović, Ljubica Bacetić, Nikola Pavlović, Dušan Ćoćić, Milan Nikolić, Aleksandar Lolić, Rada Baošić (2021)
    Kompleksi metala sa tetradentatnim Šifovim bazama ispoljavaju različitu biološku aktivnost, što omogućava ciljne sinteze novih biološki aktivnih jedinjenja. Proučavane su interakcije H[Rh(acac2en)Cl2] (1) i H[Rh(phacac2en)Cl2] (2) sa humanim serum albuminom (HSA) i sa DNK, primenom fluorescentne i UV-Vis spektroskopije (298 K, pH 7,4). Dobijene su relativno visoke vrednost dinamičke konstante vezivanja (Ksv) i to 3,88·104 M-1 za (1), 7,02·104 M-1 za (2), što ukazuje na značajno vezivanje za HSA. Izračunate konstante unutrašnjeg vezivanja (Kb) su: 2,87·105 M-1 ...

  • Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija

    Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić (2015)
    Biougalj se dobija pirolizom iz organskog otpada. Smatra se ,,modifikatorom'' zemljišta i koristi se kao đubrivo i kao rezervoar za skladištenje ugljenika. Kvantifikacija funkcionalih grupa je važna zbog hemijske reaktivnosti biougljeva koji imaju uticaj na svojstva zemljišta. U istraživanju su korišćena 3 uzorka biouglja različitog porekla i jedan referentni, aktivni ugalj. Sadržaj kiselih funkcionalnih grupa je određivan titracijom po Boehm-u na dva načina: uvođenje N2 tokom titracije i tretman sa BaCl2. Optimizovan je način pripreme tri Boehm ova rastvora ...
    ... order to check the efficiency this methods, spectrofotometry is used at a wavelenght of 250 nm. ‘This work was funded by the Ministry of Education, Science and Technological Development od the Republic of Serbia, Project No. 172051 Reference 1. Rivka B. Fidel, David A. Laird, Michael L. Thompson, ...

  • Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia

    Maja Milošević, Bojan Kostić (2022)
    ... content of montmoril- lonite and a smaller amount of quartz, carbonates, iron oxy/hydroxides and feldspars. Acknowledgements. Ministry of Education and Science, Republic of Serbia, on realization and financing of scientific research work in 2022, contract No. 451-03-68/2022-14/200126. REFERENCES Milošević ...

  • Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin

    Angelina Petrović, Aleksandar Mijatović, Rada Baošić, Jovana Bogojeski (2018)
    Joni prelaznih metala u kombinaciji sa različitim ligandima nude veliki broj mogućnosti za ispitivanje potencijalnih bioaktivnosti. Među jonima prelaznih metala, bakar je poznat kao endogeni metal za ljude, sa karakterističnim biološkim redoks aktivnostima i relativno jakim afinitetom za nukleobaze. Kompleksi bakra ispoljavaju svoju antitumornu aktivnost na nekoliko različitih načina, generišu veliku količinu ROS, što uzrokuje oksidativno oštećenje mitohondrija i biomakromolekula. Nađeno je da kompleksi bakra(II) imaju umeren do dobar afinitet vezivanja sa DNK, uglavnom putem interkalacije.

  • The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin

    Filip Anđelković, Dejan Radivojević (2019)
    gornji miocen, litostratigrafske jedinice, formacije, Panonski basen
    ... Symmetry during the syn- and post-rift evolution of extensional back-arc basins: The role of inherited orogenic structures. Earth and Planetary Science Letters. 462, pp 86-98 3. Ivanišević, S., & Radivojević, D., (2018). Upper Miocene depositional environments of Kikinda-Mokrin High (Serbia). I ...

  • Geology of the southern part of the Sava-Vardar zone: new constraints from the Klepa Mts.

    Dejan Prelević, Ana Mladenović, Violeta Gajić, Milena Dunčić, Blažo Boev (2024)
    Tethys closure, Scaglia Rossa, intracontinental basalts
    ... basalt was most likely emplaced during an active tectonic phase of transpression/transtension. ACKNOWLEDGEMENT This research is financed by the Science Fund of Serbia, project, RECON · TETHYS (7744807). REFERENCES 1. Prelević, D., Wehrheim, S., Reutter, M., Romer, R. L., Boev, B., Božović, M ...

  • Reconstruction of the Tethys' waning in the Balkans: New insights from Upper Cretaceous igneous formations and zircon provenance data

    Dejan Prelević, Kristijan Sokol, Ana Mladenović, Violeta Gajić, Vladica Cvetković (2024)
    geochronology, zircon, provenance
    ... absence further cast challenge the notion of a vast Sava (Tethys) Ocean during the Cretaceous. ACKNOWLEDGEMENT This research is financed by the Science Fund of Serbia, project RECON TETHYS (7744807). REFERENCES 1. Prelević, D., Wehrheim, S., Reutter, M., Romer, R. L., Boev, B., Božović, M. . ...

  • Upper Cretaceous scaglia type limestone from Klepa Mts. (North Macedonia) - sedimentology and biostratigraphy

    Violeta Gajić, Milena Dunčić, Ana Mladenović, Dejan Prelević (2024)
    The research area is located in the central part of North Macedonia, in the area of the Klepa Mts. Based on sedimentological, micropaleontological and biostratigraphical investigations of samples from both the east and west side of the Klepa Mts., sedimentary rocks of the Upper Creaceous age are determined. During the latest Cretaceous, this area was dominated by the sedimentation of dominantly carbonate rocks with variable amounts of clastic components. From the tectonic point of view, investigated area belongs to the ...

  • Comparative analysis of correlation coefficients in mineralogical and geophysical data from the mine tailing site “Rudnik” (Serbia)

    Vesna Cvetkov, Filip Arnaut, Dragana Životić (2024)

  • Srbija u OneGeology Europe

    Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić (2014)
    Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...
    OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем
    ... f/Richard.pdf Struik, L.C. Quat, M.B. Davenport, P.H. and Okulitch, A.V. (2002): Multi-hierarchical rock classification for use with thematic computer-based query systems, a preliminary scheme. Geological Survey of Canada, Current Research 2002D, 9 p. Тривић, Б., Благојевић, Б. & Станковић, Р ...
    ... 5/pdf/Richard.pdf Struik, L.C. Quat, M.B. Davenport, P.H. and Okulitch, A.V. (2002): Multi-hierarchical rock classification for use with thematic computer-based query systems, a preliminary scheme. Geological Survey of Canada, Current Research 2002D, 9 p. Тривић, Б., Благојевић, Б. & Станковић, Р. (едитори) ...

  • Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering

    Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)
    γ-spectrometry, brushite, chukhrovite, phosphogypsum, radionuclides, recrystallization
    ... chemical company Elixir Prahovo for providing the samples for analysis. Financial support. The research was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia through Project No. 176010 and Project No. 43007. References Amjad Z. (1988) Calcium ...
    ... Calcium sulfate dihydrate (gypsum) scale formation on heat exchanger surfaces: the influence of scale inhibitors. Journal of Colloid and Interface Science, 123(2), 523–536. Azimi G. (2010) Evaluating the Potential of Scaling Due to Calcium Compounds in Hydrometallurgical Processes. PhD thesis, Department ...
    ... Pćrez-Moreno S.M. (2016) Pollutant flows from a phosphogypsum disposal area to an estuarine environment: an insight from geochemical signatures. Science of the Total Environment, 553, 42–51. Rolnick L.S. (1954) The Stability of Gypsum and Anhydrite in the Geologic Environment. PhD thesis, Department ...

  • Modeliranje buke u urbanoj sredini u okolini Doma zdravlja u Pančevu

    Stefan Mandić (2024)
    Prisustvujemo epohi gde buka predstavlja veoma rasprostranjen i moderan fenomen koji možemo deklarisati kao problem. Svedoci smo toga da moderni problemi zahtevaju malo drugačiji pristup nego u prošlosti, odnosno zahtevaju moderna rešenja. Samim tim, vremenom je došlo do modernizacije alata,u ovom slučaju došlo je do razvoja modela za rasprostiranje buke koji su se vremenom unapređivali pa tako danas imamo jedno moćno sredstvo za borbu protiv buke u vidu kompjuterskog softvera.Ovaј master rad, pod nazivom „Modeliranje buke u urbanoj sredini ...
    buka, zvuk, saobraćaj, modeliranje, merenje buke
    ... was the development of noise propagation models that were improved over time, so today we have a powerful tool to combat noise in the form of computer software. This master's thesis, entitled "Noise modeling in the urban environment in the vicinity of the Pančevo Health Center" contains 10 chapters ...
    ... at the location itself, counting road users, both light and heavy motor vehicles, and finally modeling the spread of the noise impact through computer software. We were able to present three scenarios in order to gain an insight into the real state of municipal noise and to carefully compare ...
    ... to find an effective solution to reduce the impact of noise. This master's thesis covers all the necessary steps for the successful creation of a computer model for the purposes of modeling noise propagation in industrial environments. Keywords: Noise, sound, traffic, modeling, noise measurement ...

  • Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema

    Svetlana M. Štrbac-Savić (2016-06-10)
    Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...
    podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija
    ... Art of Computer Programming Volume 2: Seminumerical Algorithms (3 rd Edition) Addison-Wesley Professional, Chapter 3 – Random Numbers, 1997. [LEE09] Ya-Ting Lee, and Chian-Song Chiu, Skin Physiology Analysis via Grey GM(1, N) and GM(0, N) Model, International Journal of Bio-Science and Bio- ...
    ... of Grey System, Joutnal of Huayhong University of Science and Technology, 9, pp.11-16, 1982. [ZHANG86] Zhang Dianqing, Grey relational analysis of the shape function and the level of body quality for youngsters and children, Sport Science in Guizhou Province, 2, pp.1-5, 1986. [ZHAO87] Zhao ...
    ... and Control Letters, 5, pp. 288-294, 1982. [DENG83] J. Deng, Grey fuzzy forecoast and control for grain, Journal of Huazhong University of Science and Technology, 2, pp. 1-8, 1983. [DENG85] J. Deng, Relatonal space of Grey Systems, Fuzzy Mathematic, (Special Issue of Grey Systems), 2, pp ...

  • Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia

    Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)
    Earth-Surface Processes

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... of Industrial Clays. In Developments in Clay Science 5; Elsevier: Amsterdam, The Netherlands, 2013; Chapter 4.1, pp. 425–449, doi:10.1016/b978-0-08-098259-5.00017-2. 22. Harvey, C.; Lagaly, G. Industrial Applications. In Developments in Clay Science 5; Bergaya, F., Lagaly, G., Eds.; Elsevier: Amster- ...
    ... Mineralogy. Occurrences, processing and application of kaolins, bentonite, palygorskite-sepiolite, and common clays. In Developments in Clay Science 2; Elsevier Science: Amsterdam, The Netherlands, 2007; pp. 180+viii. 43. Simić, V. Contribution to the geological terminology of raw materials for structural ...
    ... Economic Challenges. In Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment; Janev, I., Ed.; Nova Science Publishers, Inc.: Hauppauge, NY, USA, 2019; pp. 1–56, ISBN 978-1-53614-897-8. Available online: https://novapublishers.com/shop/serbia- current-i ...

  • State and perspective of individual household heating in Serbia: A survey-based study

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...
    Domaćinstva, Individualni sistemi grejanja, Korišćenje energije, Stavovi potrošača, Anketa, Srbija

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... research was suppor- ted by Ministry of Education, Science and Technological Development of the Republic of Serbia, Project ON-176015 (NDJ, MS, DJ). The cooperation Leoben-Belgrade was sup- ported by the CEEPUS Network CIII-RO-0038 Earth-Science Studies in Central and South-Eastern Europe. The ...
    ... 1, 75—110. De Wever P., Dumitrica P., Caulet J.P.. Nigrini C. & Caridroit M. 2001: Radiolarians in the sedimentary record. Gordon & Breach Science Publication, 1—533. Dimitrijević M.D. 1982: Dinarides: an outline of tectonics. Karfn 'Evolution Sciences 2, 4-23. Dimitrijević M.D. 1997: Geology ...
    ... Zlatibor mountain (Sirogojno, SW Serbia). Facies 58,95—111. Nakaseko K. & Nishimura A. 1979: Upper Triassic Radiolaria from Southwest Japan. Science Reports — College of General Educa- tion, Osaka University 28, 2, 61—109. Obradović J. & Goričan Š. 1988: Siliceous deposits in Yugoslavia: ...

  • Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia

    Оливера Крунић (2021)
    минералне воде

  • Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

    Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)
    Stratigraphy,Economic Geology,Geology,Geophysics,Oceanography