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Упит dcterms_subject_txt:Control and Systems Engineering

2382 items

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... damage in tunnels . an engineering approach. Proceedings of rock support and underground construction, P.K. Kaiser and D.R. McCreath (eds.), Rotterdam: Balkema, 563-609. 131.Ortlepp, W.D. 2005. RaSiM comes of age: a review of the contribution to the understanding and control of mine rockbursts, ...
    ... M., Bommer, J. J. 2005. Processing of strong-motion accelerograms: Needs, options and consequences, Soil Dynamics and Earthquake Engineering 25, 93-115. 20. Brace W and Byerlee J. 1966. Stick-slip as a mechanisms for earthquakes, Science, 153, pp. 3739, 990-992. 21. Brummer, R.K., Rorke ...
    ... E., Kitney, R. I. 1991. Biomedical signal processing (in four parts). Part 1 Time-domain methods. Medical and Biological Engineering and Computing, 28, 509-524. 33. Cui, H., Li, H., and Jiang, F. 2004. Newborn natural gas resources in coal basin, Journal of Jiaozuo Institute of Technology 23 ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... School of Science and Engineering). [66] Balaram, V., 2022. Sources and applications of rare earth elements. Environmental Technologies to Treat Rare Earth Elements Pollution: Principles and Engineering; IWA Publishing: London, UK, p.75-113. [67] Chakhmouradian, A.R. and Wall, F., 2012. Rare ...
    ... Bournival, G., Saydam, S. and Canbulat, L, 2021. Towards a low-carbon society: A review of lithum resource availability, challenges and innovations in mining, extraction and recycling, and future perspectives. Minerals Engineering, 163, p.106743. [93] Sivula, K. and Van De Krol, R., 2016. Se ...
    ... Metal Leaching and G-METS Distillation for Neodymium Magnet Scrap Recycling (Doctoral dissertation, Argonne National Laboratory). [76] Hamrin, H., Hustrulid, W. and Bullock, R., 2001. Underground mining methods and applications. Underground mining methods: Engineering fundamentals and international ...

  • Attenuation of bacteriological contaminants in karstic siphons and relative barrier purifiers – Case examples from Carpathian karst in Serbia

    Vasić Ljiljana, Stevanović Zoran, Milanović Saša, Petrović B (2015)

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... Rudolf et al., 2016; Weijermars and Schmeling, 1986). Scaling of all models follows the principles of geometrical, rheolog- ical and kinematical similarities between natural systems and models (Hubbert, 1937; Ramberg, 1981; Weijermars and Schmeling, 1986; Davy and Cobbold, 1991). Densities of our ...
    ... grad- ually widens southwards with subsequent deformation and rotation (i. e., in the direction away from the pole of rotation). Transtensional (dextral-normal) faults control the subsidence and bound the basin to the west and east (structures 2 and 3 in Fig. 8c). Structure 2 accom- modates a larger amount ...
    ... translational kinematic boundary conditions (Figs. 3, 4 and 5a, b) show that the indenter geometry significantly in- fluences the geometry and kinematics of strike-slip zones and their transition to the E-W oriented thrust systems (compare Fig. 5a and b). In case of rounded indenter corners the strike-slip ...

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • Multivarijabilni modeli upravljanja u rudarstvu

    Marjan M. Hudej (2014-02-03)
    osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...
    rudarstvo, odlučivanje, upravljanje, model,multivarijabilno, multiatributno, multikriterijumsko
    ... Abstract The decision making and management in mining engineering are characterized by complexity, variability, ambiguity, sensibility and risk. There are several incentives for such attribution. The first is multi-variability of environmental conditions and the functional and structural complexity of ...
    ... PROMETHEE Group Decision Support System and the House of Quality, Group Decision and Negotiation, Online ISSN 1572-9907, Publisher Springer Netherlands, 2011. 12. Belegendu A. D., Chandrupatla T. R., Optimization Concepts and Applications in Engineering, Cambridge University Press, 2nd edition ...
    ... Milutinovic, A., Pavlovic, P., Fuzzy linear model of production optimization of mining systems with multiple entities, International Journal of Minerals, Metallurgy and Materials, University of Sicence and Technology Beijing and Springer-Verlag Berlin Heidelberg, Vol. 18, No 6, 2011, 633-637. 105. Vujić ...

  • Introductory editorial - Special issue: Genesis and protection of groundwater in carbonate aquifer

    Saša Milanović (2019)
    Geochemistry and Petrology

  • Attenuation of Bacteriological Contaminants in Karstic Siphons and Relative Barrier Purifiers: Case Examples from Carpathian Karst in Serbia

    L. Vasić, Z. Stevanović, S. Milanović, B. Petrović (2015)

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • A methodology for assessing the pressures on transboundary groundwater quantity and quality – experiences from the Dinaric karst

    Zoran Stevanović, Veljko Marinović (2020)
    A relatively novel and abridged methodology for assessing the quantity and quality status of groundwater bodies has been applied in the Dinaric karst of SE Europe. Validation of pressure on quantity is based on groundwater budgeting and the correlation of available groundwater reserves and projected water demands, while pressure on quality is estimated by GIS-created maps: vulnerability – hazard – risk. The results obtained from the studied groundwater bodies indicate mostly low pressure on water quantity, but increased risk from diffuse and point pollution sources. ...
    međugranična izdan, karst, ranjivost, hazard, rizik, Dinaridi

  • A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian

    Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih (2021)
    Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...
    uvredljivi jezik, govor mržnje, srpski, tviter, leksikon, korpus
    ... are usually expected to report abusive speech, and then the site or social network moderators manually review the report. More advanced platforms use systems with regular expressions and “black” lists of words and expressions, to catch abusive language and remove posts [25]. There are also online portals ...
    ... achieve this goal systems usually apply text mining techniques. The majority of current hate speech, offensive, and abusive language detection systems in social media are based on lexicons or blacklists ([7, 10, 28, 34]). Their importance lies in the fact that a vast number of swear words and offences can ...
    ... use of different annotation schemes and categories definitions in various data set making it impossible to compare results of different systems [40]. An additional problem is that the available datasets usually focus on specific topics like misogyny or racist speech and do not cover all types of hate speech ...

  • 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)
    ... of rain-fed agriculture and the surface waters from the rivers and channels. Tapping of shallow aquifer layers is prevalent in Serbia, whereas the deeper aquifer layers are more erploited in Hungary. 4.9.4 Proposed Measures for Sustainable Utilization of the Aquifer Systems On the Hungarian side ...
    ... management and monitoring at all levels. 4.9.2 Study Area The aquifer system under study is located between the Danube and Tisa (Tisza) rivers and extends to the vicinity of lGskunfelegyhaza on the Hungarian side (north) and to Vrbas in Serbia (souih). The main groundwater consumers are the cities and industries ...
    ... paleogeographic conditions and improving the knowledge of geological structures [3-5]: ' Pre-Cambrium and Paleozooic metamorphic schists are the oidest rocks and represent a deep fundament for younger sedimentary rocks, mainly of Tertiary age. Mesozoic sediments mostly of Triassic and Cretaceous ages are ...

  • XRD and SEM analysis of urinary stones

    Miljević Miljana, Rosić Aleksandra (2010)

  • Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина

    Aлександар Додеровић (2024)
    Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...
    оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритам

  • Discussion of „Classroom activities to illustrate concepts of Darcy’s law and hydraulic conductivity“ by Roseanna M.Neupauer and Norman D. Dennis

    Brkić Dejan, Mitrović Vladimir (2010)

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... Military Technical Faculty in Zagreb, Croatia, and received MSc and PhD degrees at the University of Belgrade. Her expertise includes distance learning, intelligent tutoring systems, adaptive user modeling and Semantic Web. She teaches traditional, online and blended IT courses. She was coordinator ...
    ... OPEN EDUCATIONAL RESOURCES IN SERBIA 9 education system for independence from other systems and promotes its openness. It specifically targets openness and accessibility of higher education and provides opportunities for legal regulations for the realization of ideas related to OERs, although ...
    ... teachers usually use some of learning management systems in addition to traditional teaching. In recent times, OERs and MOOCs became more popular. Learners can use meta-portals for searching adequate OERs and after that improve their skills and competencies through OERs within the chosen platform ...

  • A treatise about reliability in dating events of evolutionary history of brown trout Salmo cf. trutta (Actinopterygii) at Western Balkans: Impassable barriers, isolation of populations and assistance of geological timeframe

    Ana Marić, Danica Srećković Batoćanin, Dubravka Škraba Jurlina, Miloš Brkušanin, Jelena Karanović, Tamara Kanjuh, Vera Nikolić, Danilo Mrdak, Predrag Simonović (2023)
    Distribucija različitih haplotipova pastrmke u zavisnosti od geoloških dogadjaja.
    smeđa pastrmka, jadranska pastrmka, molekularni sat, evolucija, geološka istorija

  • Improvement of Queries using a Rule Based Procedure for Inflection of Compounds and Phrases

    Stanković Ranka (2008)

  • 3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies

    Abolmasov Biljana, Pejić Marko (2011)