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Упит dcterms_subject_txt:Library and Information Sciences,Computer Science Applications

2436 items

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • 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
    ... Standardization EN 14157:2008). To evaluate the physical and mechanical properties of the investigated carbonate rocks, basic descriptive statistics were performed using the StatSoft computer software. Statistical parameters (mean, minimum, and maximum value) are presented using box-Whisker diagrams ...
    ... petrological and physico- mechanical properties of Serbia's Mesozoic carbonate rocks, among those of which are rocks applicable as dimension stone. Essentially, this paper offers a substan- tiated overview of this material's recommended scope of use, proposing proper applications of natural stone ...
    ... can meet durability requirements. Research results could have further impacts on Serbia's building and stone industry, as well as the export market. Acknowledgments The Serbian Ministry of Science has financially supported this work under contract No. 176016. References Andjelković M (1975a) ...

  • Trace elements and garnet formation in a distal skarn zone: a case study of the Rudnik deposit, Central Serbia

    Bojan Kostić, Pavle Tančić, Natalija Batoćanin (2024)
    geohemija granata, retke zemlje, fluidne inkluzije, skarnovsko ležište Rudnik

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... to being unit- specific. Other information that can be determined using the RODSTAR, SROD, and AccuPump Beam programs includes the effects that fluid inertia and changes in speed of the prime mover have on the loads of the pumping unit. RODSTAR, SROD, and AccuPump Beam can be run in two modes ...
    ... properties, and mechanical properties of rods and pumps. The software simulates the behavior of the pumping system under various operational conditions, enabling engineers to predict performance and identify potential issues [13]. 35 5.1.1. RodStar Features RodStar retains the information you input ...
    ... fluids, excessive sand production, and excessive gas production through the pump, the API method does not provide accurate results. API is the result of electrical analog computer studies of sucker rod motion. This predated the numerical solution of the wave equation and was not as general. However ...

  • Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit

    Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)
    Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformations

  • Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima

    Aleksandar M. Mijatović, Jovana Bogojeski (2017)
    Kompleksi Pd(II), supstitucione reakcije

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... International Conference on Computer Applications for Water Supply and Distribution,  Leicester Polytechnic, UK, September 8‐10. (на енглеском)  279. Todini, E., Pilati, S. 1988. A gradient method for the analysis of pipe networks. in: B.  Coulbeck, C.H. Orr (Eds), Computer applications in water supply, Jo ...
    ... ansactions of the Royal Society A: Mathematical, Physical  and Engineering Sciences 365(1852), 699‐714. (на енглеском)  10. Altman, T., Boulos, P.F., 1995. Convergence of Newton method nonlinear network  analysis. Mathematical and Computer Modelling 21(4), 35–41. (на енглеском)  11. Andriyashev, M ...
    ... н, Загреб.  (на српском)  293. Wang, Y.‐J., Hartman, H.L. 1967. Computer solution of three‐dimensional mine  ventilation networks with multiple fans and natural ventilation. International Journal of  Rock Mechanics and Mining Sciences 4(2), 129‐154. (на енглеском)  294. Walski, T.M. 2006. Water di ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... International Conference on Computer Applications for Water Supply and Distribution,  Leicester Polytechnic, UK, September 8‐10. (на енглеском)  279. Todini, E., Pilati, S. 1988. A gradient method for the analysis of pipe networks. in: B.  Coulbeck, C.H. Orr (Eds), Computer applications in water supply, Jo ...
    ... ansactions of the Royal Society A: Mathematical, Physical  and Engineering Sciences 365(1852), 699‐714. (на енглеском)  10. Altman, T., Boulos, P.F., 1995. Convergence of Newton method nonlinear network  analysis. Mathematical and Computer Modelling 21(4), 35–41. (на енглеском)  11. Andriyashev, M ...
    ... н, Загреб.  (на српском)  293. Wang, Y.‐J., Hartman, H.L. 1967. Computer solution of three‐dimensional mine  ventilation networks with multiple fans and natural ventilation. International Journal of  Rock Mechanics and Mining Sciences 4(2), 129‐154. (на енглеском)  294. Walski, T.M. 2006. Water di ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... lamprophiric and granitoid magma. In S. Karamata & S. Janković (Ed.), Geology and Metallogeny of the Dinarides and the Vardar zone, (pp. 255–267). The Academy of Sciences and Arts of the Republic of Srpska, Collections and Monographs, Book 1, Department of Nature, Mathematical and Technical Science. Prelević ...
    ... (AMS) measure- ments with KLY-2 or with MFK1-A kappabridges with Jelı́nek (1977) method. The computer programs used for measurements and evaluations were Aniso (Bodrás 1990) and ANISOFT 4.2 and 5.1 (Chadima and Jelı́nek 2008; Chadima et al. 2018) based on Jelı́nek (1978, 1981). Test samples from each ...
    ... & Panaiotu, C. (2008). No significant post-Eocene rotation of the Moesian Platform and Rhodope (Bulgaria): Implication for the kinematic evolution of the Carpathian and Aegean arcs. Earth and Planetary Science Letters, 273, 345–358. van Hinsbergen, D. J. J., Mensink, M., Langereis, C. G., Maffione ...

  • Primena digitalne fotogrametrije u rudniku Rudnik

    Nikola Mirković, Luka Crnogorac, Katarina Urošević (2023)
    Digitalna fotogrametrija, lasersko skeniranje i virtuelizacija sve više pronalaze aktivne uloge u rudarstvu, prvenstveno zbog svoje široke mogućnosti primene. Laserskim skeniranjem i fotogrametrijom snimaju se i kreiraju 3D modeli otkopa, jamskih hodnika, površinskih kopova, površinskih objekata (zgrada, spomenika, predmeta), a vrši se skeniranje celih rudnika koji se rekonstruišu u 3D digitalne modele. Fotogrametrija predstavlja proces fotografisanja objekata pomoću fotoaparata i daljom obradom fotografija u različitim softverskim alatima kreiraju se realne kopije 3D modela objekata ili predmeta u digitalnoj formi. Za ...
    digitalna fotogrametrija, prostorna vizuelizacija, rudarski objekti, podzemna eksploatacija
    ... top-quality laser scanners, as well as supporting computer equipment (hardware and software) that can quickly process a huge amount of data and form high density point clouds. The acquisition of such equipment represents a relatively high financial expenditure and is considered an unnecessary expense in smaller ...
    ... Uotinen, L., & Rinne, M. (2023). Method to obtain 3D point clouds of tunnels using smartphone LiIDAR and comparison to photogrammetry. In IOP Conference Series: Earth and Environmental Science (Vol. 1124, No. 1, p. 012016). IOP Publishing [2] Gligorić, Z., Ganić, A., Milutinović, A., Cvijović, ...
    ... field and laboratory laser scanning. Journal of Applied Remote Sensing, 8(1), 063544-083544 [9] Slaker, B., Westman, E., Ellenberger, J., & Murphy, M. (2016). Determination of volumetric changes at an underground stone mine: a photogrammetry case study. International Journal of Mining Science and ...

  • Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2024)

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... Kolubara Coal Basin, such as: basic information about drill hole (collar data), complete lithology and assaying data, geotechnical, hydrogeological, geophysical data. This system can perform export of data to the different formats for use with mining and geological software's like Minex. ...
    ... part of the project "Improvement of Lignite Opencast Technology in Order to Increase Energy Efficiency and Occupational Safety" (TR 33039) financed by the Ministry of Education and Science of the Republic of Serbia within the framework of Programme of research in the field of technological ...
    ... Blending, The Southern African Institute of Mining and Metallurgy 7 Stevanović D, Kolonja B, Stanković R, Knežević D, Banković M, 2013, Application of stochastic models for mine planning and coal quality control, 2013, Thermal Science, DOI REFERENCE: 10.2298/TSCI130201031S, http:/ ...

  • Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach

    Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)
    Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...
    pyrazoloquinolinones, nanocrystals, wet media milling, fasted/fed bioavailability
    ... characterization as it can provide information about the shape and structure of the particles in nano-range resolution [18]. AFM images Pharmaceutics 2021, 13, 1188 11 of 19 of samples F5, F6, and F8 are presented in Figure 3. Nanocrystals were of uniform size and shape, and the size was in suitable correlation ...
    ... Ministry of Education, Science and Technological De- velopment, Republic of Serbia through grant agreements no. 451-03-9/2021-14/200161 (Faculty of Pharmacy), 451-03-09/2021-14/200126 (Faculty of Mining and Geology), and 451-03-9/2021- 14/200026 (Institute of Chemistry, Technology and Metallurgy); National ...
    ... National Institutes of Health, USA through grants R01 NS076517 and R01 MH096463 and National Science Foundation, Division of Chemistry through grant CHE-1625735 to JC. The APC was funded by the Ministry of Education, Science and Technological Development, the Republic of Serbia, through a grant agreement ...

  • Petrogenesis of the eastern part of the Al Haruj basalts (Libya)

    Cvetković Vladica, Toljić Marinko, Ammar N.A., Rundić Ljupko, Trish K.B. (2010)

  • Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia

    Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović (2014)

  • A New Bouguer Gravity Anomaly Field in the Adriatic Sea for Geodetic and Geophysical Applications

    Tassis G.A., Grigoriadis V.N.,  Tziavos I.N.,  Tsokas G.N.,  Papazachos C.B.,  Vasiljević Ivana (2011)

  • Threshold-induced correlations in the Random Field Ising Model

    Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević (2018)
    Multidisciplinary
    ... In Spin Glasses and Random Fields, edited by Young, A. P. (World Scienti�c, Singapore, 1998). 3. Sethna, J. P., Dahmen, K. A. & Perković, O. In �e Science of Hysteresis, edited by Bertotti, G. & Mayergoyz, I. (Academic Press, Amsterdam, 2006). 4. Durin, G. & Zapperi, S. In �e Science of Hysteresis ...
    ... In Spin Glasses and Random Fields, edited by Young, A. P. (World Scientific, Singapore, 1998). 3. Sethna, J. P., Dahmen, K. A. & Perkovi¢, O. In The Science of Hysteresis, edited by Bertotti, G. & Mayergoyz, I. (Academic Press, Amsterdam, 2006). 4. Durin, G. & Zapperi, S. In The Science of Hysteresis (eds ...
    ... was supported by the Serbian Ministry of Education, Science and Technological Development under Project No. 171027. �is research has also been supported by the Academy of Finland through an Academy Research Fellowship (L.L., project no. 268302) and through the Centres of Excellence Program (project ...

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... northeast part of the island, where there are numerous ophiolite and serpentine outcrops (Castagnicia, Nebbio, Monte San Petrone and Cap areas (Canari)), which have been largely exploited during the 20th century for applications in the building and insulation industries. The production of this asbestos-based ...
    ... aluminum replaces part of the silicon framework. The main forms are serpentine, lizardite and chrysotile (called “white asbestos”), which have been used mostly in modern building and automotive applications [41] due to the high quality of the fibers (in terms of length, small diameter, etc.); the ...
    ... eV Wavenumber / cm” Figure A4. Representative EDS (left) and Raman (right) spectra recorded on some spots of sample d (see Figure 1). References e o z a m s m s n 10. 11. 12. 13. Chawla, K.K. Composites Materials, Sciences and Engineering, 2nd ed.; Springer: New York, NY, USA, 1998. ...

  • Mine ventilation system planning using genetic algorithms

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...
    coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methods

  • Моделирање утицаја одступања линије најмањех отпора од пројектоване на интензитет потреса од минирања

    Стефан Милановић (2024)
    Према дефиницији линија најмањег отпора представља најкраће растојање од центра минског пуњења до слободне површине. Oвим истраживањем представљен је утицај линије најмањег отпора, као и њеног одступања од пројектоване на интезитет потреса услед минирања. Проблем линије најмањег отпора је веома заступљен у пракси, где се занемарује изглед слободне површине, који може бити врло неправилан. Линију најмањег отпора је потребно мерити целом дужином минске бушотине према слободној површини, иако је у пракси случај да се мери најчешће као растојање од ...
    линија најмањег отпора, 3D модел, потреси услед минирања, минирање, слободна површина, метода раздвојених елемената