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Упит dcterms_subject_txt:porosityGeneral Computer Science

747 items

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)
    Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...
    optimization, O-Pitblast, drilling, blasting, fragmentation size

  • Примена CNC машина при обради мермера

    Ненад Остојић (2024)
    Мермер је стена настала метаморфизмом седиментних карбонатних стена, најчешће кречњака или доломита. Мермер се углавном састоји од калцита,кречњака, серпентина и доломита. Његове главне компоненте су углавном калцијум карбонат, који чини више од 50 посто, и други магнезијум карбонат, калцијум оксид, манган оксид и силицијум диоксид, итд. Фазе обраде мермера су: примарно резање мермерних блокова у плоче, површинска обрада мермерних плоча, секундарно резање мермерних плоча, терцијарна обрада (ако је потребно). CNC машина је електро-механички уређај који управља алатима, користећи програмирање путем ...
    мермер, површинска експлоатација, архитектонско-грађевински камен, обрада мермера, CNC машине
    ... BpeMECHCKHM HHTCpBaJIHMa MOPajy H{IOHOBO yrlOTpeOHTH. 3.3. CNC ammuHe V naHamrbe BpeMe MatmiiHckKa HHJIycTpHJa Je He3aMHCHBa Oe3 caBpeMeHHx CNC (Computer Numerical Controfl) Mamatia. CNC watniiHe HMajy CKOpo HCTe JIeJIOBE KaO H TIpeTXOJIHe, pyuHO KOHTPpoOJIHCaHe MamiHHe. biTHa pa3nuka Je nonaTak ...
    ... CBeJICHeC Cy Ha MHHHMyM H OJUIHKy]y CeC BEJIHKOM IIperu3Horihy oOpane. CaM Ha3HB „CNC“ je ckpahenuma 3a "PauyHapcKO HyMCpHuKO yIrIpaBJbaMbe", eHrn. Computer Numeric Control. V naHamrbe BpeMe MatmiiHckKa HHJIycTpHJa Je He3aMHCHBa Oe3 caBpeMeHHx CNC MammHHa . CNC MammMHe MMajy CKOpO MHCTC JIČMHOBC KaO ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... whether proposed lemmas were grammatically correct and 2) whether MWU terms belong to domain terminology, in this case library and in- formation science, or to the general lexica. For candidate ranking three measures were used: frequency, C-Value (Franzi et al., 2000) and log-likelihood (Dunning ...
    ... evaluation of new term candi- dates (Robitaille et al., 2006). Acknowledgement. This research was supported by the Serbian Ministry of Education and Science under the grant #47003 and Parseme COST action IC1207. Proceedings of the conference Terminology and Artificial Intelligence 2015 (Granada, Spain) ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja

  • Classification of mining waste landfills according to legislation in Serbia

    Dragana Nišić, Uroš Pantelić, Nikoleta Aleksić, Neda Nišić (2021)
    rudarski otpad, jalovina, uredba, deponija, kategorija A, klasifikacija

  • 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 ...
    Istočna vardarska zona; ofioliti; 2D i pseudo 3D geofizičko-geološkimodel; geodinamička evolucija
    ... Edge 27, 990–1002 Lu, R. S., Mariano, J., Willen, D. E., 2003. Differential reduction of magnetic anomalies to the pole on a massively parallel computer. Geophysics, 68 (6): 1945-1951. 108 Lugović, B., Altherr, R., Raczek, I., Hoffmann, A., Majer, V., 1991. Geochemistry of peridotites ...
    ... 938-955. Boudier, F., and Nicolas, A., 1985. Harzburgite and lherzolite subtypes in ophiolitic and oceanic environments, Earth and Planetary Science Letters 76, 84-92, doi: 10.1016/0012-821X(85)90150-5. Božović, М., Prelević, D., Romer, R., Barth, M., Bogaard, P. V. D., Boev, B., 2013. The ...
    ... Dimitrijević, M. D. and Dimitrijević, M.N., 1987. The Paraflysch of the Central Vardar Subzone. The Turbiditic Basins of Serbia (Serbian Academy of Science and Arts), 79-100. Dimitrijević, M. D., 1997. Geology of Yugoslavia, Belgrade: Barex, Special Publications. Dimitrijević, M. D., 2001. Dinarides ...

  • Nonequilibrium athermal random-field Ising model on hexagonal lattices

    Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević (2021)
    Изингов модел, хексагонална решетка

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... 10 Institute of Water Management "]aroslav eerni" (2004) Altemative Solulions in Water Suppl.ry of Vojvodina, Hydrod,ynamical Study, Ministry of Science Serbia, Belgrade (unpublished). 4.10 Transboundary Groundwater Resources Extending over Slovenian Territory Petra Meglib and Joerg PresI'or 4 ...

  • Developing Termbases for Expert Terminology under the TBX Standard

    https://dr.rgf.bg.ac.rs/s/repo/item-set/522 (2014)
    ... scription and Explanation. Terminology, 9(2):163-199, 2003. ISO. Computer Applications in Terminology — Machine-Readable Terminology In- terchange Format (MARTIF) — Negotiated Interchange, 1999. Ref. ISO 12200:1999. . ISO. Computer Applications in Terminology — Terminological Markup Frame- work, 2003 ...
    ... termbase, so that they can be leveraged for other purposes. Acknowledgments. This research was supported by the Serbian Ministry of Education and Science under the grant #III 47003. ❉❡✈❡❧♦♣✐♥❣ ❚❡r♠❜❛s❡s ✉♥❞❡r t❤❡ ❚❇❳ ❙t❛♥❞❛r❞ ✷✺ ❋✐❣✳ ✶✶✿ ❇✐❜❧✐♦❣r❛♣❤✐❝❛❧ ✐t❡♠s ✐♥ t❤❡ ❚❇❳ ✜❧❡ ❘❡❢❡r❡♥❝❡s ✶✳ ▲♦✉ ❇✉r♥❛r❞ ...

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 1492–1501 King, B, 2011, Optimal mining practice in strategic planning, Journal of Mining Science, vol. 47, str. 247-253. Kirkpatrick, S., Gelatt Jr, C. D., Vecchi, M. P., 1983, Optimization by Simulated Annealing, Science, vol. 220, str. 671–680. Knežević, D., Kolonja, B., Tomašević, A.,, Nišić, D., (2014) ...
    ... application and risk analysis at copper deposit, Mining Technology, vol. 106, no. 3, str. 109-118. Lemieux, M, 1979, Moving Cone Optimizing Algorithm, Computer Methods for the 80′s in the Mineral Industry, SME-AIME, str 329-345 Lerchs, H and Grossmann, 1965, Optimum design of open pit mines, Transactions ...
    ... algorithms, International Journal of Mining, Reclamation and Environment, Vol. 22, No. 1, str. 3-35 Pana, M. T, Carlson, T.R, 1966, A Description of Computer Technique Used in Mine Planning of the Utah Mine of Kennecott Copper Corp, VI APCOM, State College, Pennsylvania Parker, H., 1979, The Volume Variance ...

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 1492–1501 King, B, 2011, Optimal mining practice in strategic planning, Journal of Mining Science, vol. 47, str. 247-253. Kirkpatrick, S., Gelatt Jr, C. D., Vecchi, M. P., 1983, Optimization by Simulated Annealing, Science, vol. 220, str. 671–680. Knežević, D., Kolonja, B., Tomašević, A.,, Nišić, D., (2014) ...
    ... application and risk analysis at copper deposit, Mining Technology, vol. 106, no. 3, str. 109-118. Lemieux, M, 1979, Moving Cone Optimizing Algorithm, Computer Methods for the 80′s in the Mineral Industry, SME-AIME, str 329-345 Lerchs, H and Grossmann, 1965, Optimum design of open pit mines, Transactions ...
    ... algorithms, International Journal of Mining, Reclamation and Environment, Vol. 22, No. 1, str. 3-35 Pana, M. T, Carlson, T.R, 1966, A Description of Computer Technique Used in Mine Planning of the Utah Mine of Kennecott Copper Corp, VI APCOM, State College, Pennsylvania Parker, H., 1979, The Volume Variance ...

  • The interaction of organoselenium trans-palladium(II) complexes toward small-biomolecules and CT-DNA

    Vera M. Divac, Aleksandar Mijatović, Marina D. Kostić, Jovana Bogojeski (2017)
    Serija organoselenijum trans-paladijum(II) kompleksa 1 (bis(2-(fenilselanilmetil)oksolan)dihloropaladijum(II)), 2 (bis(2-(fenilselanilmetil)oksan)dihloropaladijum(II)) i 3 (bis(2) ,2-dimetil-3-(fenilselanil)oksan)dihloropaladijum(II)) su korišćeni za ispitivanje reaktivnosti ovog specifičnog tipa kompleksa prema različitim bio-molekulima. Ovaj sistem je od posebnog interesa jer se jako malo zna o supstitucionim reakcijam organoselenijum paladijum(II) kompleksa sa trans konfiguracijom. Zamena koordinovanog hlorida sa serijom malih bio-molekula (l-Met, l-His, l-Cis, GSH i 5′-GMP) proučavana je pod uslovima pseudo-prvog reda kao funkcija koncentracije nukleofila i temperature korišćenjem tehnika zaustavljenog toka. Rezultati za proučavane komplekse ukazuju da ...
    Pd(II), Selen, Substitucija, Kinetika, Mehanizam

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... for open pit mining considerations, Journal of Engineering Applied Science, 21, pp. 119-127. Mohammad, W.A., 2003, Generalized cutoff grades optimization algorithm in two minerals case, Journal of Engineering Applied Science, 22, pp. 81–87. Mohammad, W.A. and Khan, M.N., 2004, Management of open ...
    ... through net present value algorithm considering metal price and cost escalation, 282 Engineering Compututions: International Journal for Computer-Aided Engineering and Software, 24 (7), pp. 723-736. Asad, M.W.A., Topal, E., 2011, Net present value maximization model for optimum cut-off ...
    ... geovia.com/node/483/?WT.ac=%20Whittle%20Whitepaper%20CTA]. Whittle, J., 1988, Beyond optimization in open pit design, First Canadian Conference on Computer Applications in the Mineral Industry, Rotterdam: Balkema, pp. 331 – 337 Whittle, G., Burks, S., 2010, Simultaneous mining and mineral processing ...

  • 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)
    ... funded by People of Japan and coordinated by UNDP Office in Serbia (grant No 00094641). All activities are supported by Ministry for Education, Science and Technological Development of the Republic of Serbia Project No TR36009, too. References Cruden D, VanDine DF (2013) Classification, description ...

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...
    tecišta, modeliranje, RAMMS, DEM
    ... 709-716. Christen M, Kowalski J, Bartelt P (2010a) RAMMS: Numerical simulation of dense snow avalanches in three-dimensional terrain. Cold Regions Science and Technology, 63, 1–14. . Frank F, McArdell BW, Oggier N, Baer P, Christen M, Vieli A (2017) Debris flow modeling at Meretschibach and Bondasca ...

  • The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers

    Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović (2019)
    One of the most important prerequisites for the successful operation of the open-cast lignite mine is to carry out all the auxiliary works timely with the necessary quality. The most important and most commonly used auxiliary machines are bulldozers. Engaging time of bulldozers use is in direct relation with the coefficients of the time and capacity utilization of the continuous system for the excavation of coal and tailings, which indicates their importance. More than 100 bulldozers have been hired ...
    open-cast coal mine, auxiliary works, bulldozers, optimization, availability
    ... g application in mines for the purpose of increasing work safety and production efficiency” (TR 33025), 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 development for the period 2011-2019. REFERENCES ...

  • Energetska efikasnost elektromotora na površinskim kopovima

    Snežana Aleksandrović, Ilija Jeftenić (2023)

  • Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... P.J.; formal analysis and writing—original draft preparation, I.J. Funding: This research and the APC was funded by the Ministry of Education and Science of the Republic of Serbia within the framework of Programme of research in the field of technological development projects TR 33039 and TR 33025. ...
    ... g application in mines for the purpose of increasing work safety and production efficiency” (TR 33025), 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 development for the period 2011–2019. Conflicts ...
    ... Syst. 1987, 3, 253–265. [CrossRef] 3. Saaty, T.L.; Vargas, L.G. Models, Methods, Concepts & Applications of the Analytic Hierarchy Process; Springer Science & Business Media: New York, NY, USA, 2012; Volume 175. 4. Mohamadibadi, H.S.; Tichkowsky, G.; Kumar, A. Development of a Multi-Criteria Assessment ...

  • A tool for identifying the criticality in the disordered systems with metastable dynamics

    Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević (2021)
    Физика кондензоване материје