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Упит dcterms_subject_txt:Control and Systems Engineering

2382 items

  • Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica

    Natalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel (2019)
    Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and Technology

  • Actual contamination of the Danube and Sava rivers at Belgrade (2013)

    Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)
    rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening
    ... part of investigation was to iden- tify specific organic contaminants in the two rivers and to obtain an overview on the emission sources affecting the river systems. All compounds indentified in the Danube and Sava Rivers are presented in Table S-III. They are grouped according to their technical ...
    ... effects at trace levels. Note- worthy, surface water is becoming more and more relevant as a source of drink- ing water. Therefore, an appropriate water quality control is needed as a base for a sustainable usage of river water. Pollution of the aquatic environment caused by inorganic chemicals is ...
    ... Available online at: www.shd.org.rs/jscs/ 1170 ANTONIJEVIĆ et al. comparison of target and non-target analyses pointed to potential misinter- pretation of the real state of pollution. Keywords: river systems; state of pollution; organic pollutants; heavy metals; screening analyses; non-target screening ...

  • Дефинисање геотехничких параметара еолских седимената земуснког платоа на основу лабораторијских и теренских SPT испитивања

    Ђорђе Крзман (2024)
    Циљ овог рада је био да се одреде геотехничке караткеристике предметног терена што представља полазну основу за рационално пројектовање и градњу. Истражним бушењем утврђено је да предметни терен изграђују четри лесна хоризонта и три слоја погребене земље до дубине од 22-23 m. Лабораторијским испитивањем добијени су ефективни параметри смичуће чврстоће, где се кохезија најчешће креће између c’=14 и 18 kPa, а угао унутрашњег трења f'= 25 - 30 °. Теренска SPT испитивањем уз коришћење прихваћених корелација у геотехничкој пракси ...
    лес, лабораторија, SPT, корелације, параметри
    ... EOJTOHIKA CBOJCTBA JIMTOJIOLHIKVIX KOMTIIJIEKCA LITHOLOGICAL COMPOSITION AND IMPORTANT ENGINEERING-GEOLOGICAL PROPERTIES OF LITHOLOGICAL COMPLEXES Ha MHxeMeepckoreonouukoj kaprv| | Ha reOTeXHMUKOM rpeceky on engineering-geological map on geotechnical section Hacun - rnuHa, npaulMHa, ulyT Fill ...
    ... V BA)KHVAJA MH)KEH5EPCKOTEOTIOIIIKA HA3MB, IUIIPA0yPA V O3HAKA CBOJCTBA HIMTONOHIKAX KOMIIJIEKCA LITHOLOGICAL COMPOSITION AND IMPORTANT NAME, HATCH AND SYMBOL ENGINEERING-GEOLOGICAL PROPERTIES OF LITHOLOGICAL COMPLEXES o oxocepooroonoioj kaprij _ TeOrexnn ON npocoty on enginoering:geological ...
    ... MIH)KEHbEPCKOTEOJIOUIKA HA3MB, IUIIPA0yPA V O3HAKA 'CBOJCTBA nMTOJIOUIK/X KOMTIEKCA OCTATIE OSHAKE NAME, HATCH AND SYMBOL LITHOLOGICAL COMPOSITION AND IMPORTANT OTHER LABELS, i ENGINEERING-GEOLOGICAL PROPERTIES OF LITHOLOGICAL - | ___ __ ____ ______ | |_a oncsdeon = Feoneuna mpatuua Yragea – deterninedi ...

  • Енергетска транзиција система даљинског грејања - могућности и изазови

    Марија Живковић, Дејан Ивезић (2023)
    Највише енергије у зградама у Србији троши се на загревање простора. Због тога ће системи даљинског грејања имати важну улогу у процесу транзиције целокупног енергетског сектора. Мере и активности морају да буду усмерене и на потрошњу и производњу енергије. У раду је дат преглед потенцијала различитих обновљивих и алтернативних извора енергије, који се могу користити за производњу топлотне енергије. Приказани резултати су приказани са различитим нивоом детаљности, у зависности од расположивих података, а који могу да служе као ...
    системи даљинског грејања, транзиција, обновљиви извори енергије, потенцијали

  • 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

  • English for Geology Students. 1

    Lidija Beko (2023)
    Engleski jezik
    ... carried into orbit by satellites. This has resulted in an increased ability to test and prove hypotheses, and also 12 Meteorite created new ways of studying the interactions of terrestrial cycles and systems on a truly global scale, leading to a new field of research known as Earth system ...
    ... roughly 40 and 60 degrees centigrade, and this, coupled with the high humidity and acidity of the atmosphere, mean it is necessary for anyone visiting the Cave to wear a protective “ice suit”. The Caves have been flooded for much oftheir history, and the unique conditions of the heat and the solute ...
    ... collected from Mars. Such explorations and studies allow scientists to construct a picture of the similarities and differenc- es between the Earth and other extraterrestrial bod- ies, much as doctors might build up a picture of genetic similarities and differences in a family. While many ...

  • 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.
    ... stochastic (Monte Carlo method) and deterministic component and treats the problem of optimization of open pit boundaries. Keywords: open pit mine, planning, optimization, stochastic models, coal quality control, uncertainty. Scientific field: Mining Engineering Special scientific field: ...
    ... Variance Relationship: A Useful Tool for Mine Planning. Engineering and Mining Journal, vol. 180, str.106–123. Philips, P, A, 1973, Optimum Design of Open Pit, X-ti APCOM, Johanesburg, South Africa Pit Optomizer, Surpaca 6.1, Dassalt Systems-Geovia, dostupno na adresi:http://www.gemcomsoftware.com ...
    ... mineplanning: Applications for and the value of stochasticapproaches, master teza, Department of Mining and Materials Engineering, McGiII University, Montreal, Quebec Leite, A, Dimitrakopoulos, R, 2007, Stochastic optimisation model for open pit mine planning: application and risk analysis at copper deposit ...

  • Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization

    Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić (2016)

  • Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content

    Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)
    Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...
    Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugs

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... energy used and the sector used, which causes the combustion regime, the existence of filters, etc. The emission factors of the solid particles and the unit of energy produced are shown in Table 4. The use of energy sources (low efficiency devices, without modern measurement, control and regulatory ...
    ... Chemistry and Physics, Boca Raton, 2006 15. Holleman, A. F., Wiberg, E., Inorganic Chemistry, San Diego: Academic Press. ISBN 0-12- 352651-5, 2001 16. EPA, United States Environmental Protection Agency, Sulphur oxide ,2018 17. Soud, H., Fukasawa, K., Developments in NOx abatement and control, IEACR/89 ...
    ... IEACR/89, IEA Coal Research, London, 1996. 18. Carpenter, A., Davidson, R., NOx emissions and control, IEA Clean Coal Centre, London, UK, 2006. 19. IEA, NOx Emissions from Fuel Combustion, 2018b, доступно на: https://webstore.iea.org/co2- emissions-from-fuel-combustion-2018-highlights 20. Henry ...

  • Application of ERT in the study of debris-flow source area: Case study Selanac debris flow

    Dragana Đurić, Jelka Krušić, Biljana Abolmasov (2021)

  • Frequency and Length of Syllables in Serbian

    Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)
    Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.
    frekvencije slogova, dužina slogova, srpski jezik
    ... Papers in Laboratory Phonology I: Between the Grammar and the Physics of Speech: 283-333. Cambridge: Cambridge University Press. Comrie, B. (1996). Adaptations of the Cyrillic alphabet. In: Daniels, P.T., Bright, W. (eds.), The World’s Writing Systems: 700-726. Oxford: Oxford University Press. Crystal ...
    ... e variation applied to grapheme frequencies. Journal of Quantitative Linguistics 23, 177-190. Köhler, R. (2005). Properties of lexical units and systems. In: Köhler, R., Altmann, G., Piotrowski, R.G. (eds.), Quantitative Linguistics. An International Handbook: 305-312. Berlin, New York: de Gruyter ...
    ... (2008). Frequency and Length of Syllables in Serbian 117 3. Language material Serbian is a South Slavic language. It has the official status in Serbia (exclusively) and in Bosnia and Herzegovina (as one of three languages, together with Bosnian and Croatian), and the status of a minority ...

  • Просторни положај лежишта угља Ђурђевик: геофизичко-геолошки модел

    Синиша Арсеновић (2019)
    Лежиште угља Ђурђевик представља источни део Бановићког угљеног басена и припада северној страни босанске офиолитске зоне унутрашњих Динарида у чији састав улазе стене палеозојске, мезозојске и кенозојске старости. Језерска доњомиоценска угљоносна серија изграђена је од лапоровито-глиновитих седимената са једним слојем мрког угља. Дебљина угљеног слоја креће се у интервалу од 5 до 25 m са генералним правцем пружања СЗ - ЈИ и падом према ЈЗ. У зони обухваћеноj геофизичким истраживањима изражена je пострудна тектоника у виду раседа мањег и ...
    рефлективна сеизмика, 3Д геофизичко-геолошки модел, угаљ, синтетички модел, моделирање
    ... seismic imaging. Journal of Geophysics and Engineering 13(3), 422–428. Bates, K., Cheret, T., Pauget, F., Lacaze, S., 2009. Vertical displacement on faults extstracted from seismic, offshore Nigeria case study. 71st Annual International Conference and Exhibition, AGE Extended Abstracts, 5800 ...
    ... 978-1-56080- 296-9. Steples, W. D., Miller, D. R., 1997. Seismic reflection methods applied to engineering environmental and groundwater problems the basics of various seimic methods. Volumes on Geotechnical and Environmental Geophysics 1, 1-33. Стевић, М., 1985. Геомеханичка Испитивања Угља и Стијена ...
    ... Stam, S., Guy, G., 2012. Back analysis of roof classification and roof support systems at Kestrel North. 12th Coal Operator's Conference, University of Wollongong & the Australasian Institute of Mining and Metallurgy, pp. 42-51. Greenhalgh, S., Suprajitno, M., King, D., 2002. Shallow seismic reflection ...

  • Fluid inclusion systematics in the Okoška gora polymetallic deposit

    Aleš Šoster, Miloš Velojić, Barbara Potočnik Krajnc, Matej Dolenec (2021)
    ... Potočnik Krajnct & Matej Dolenec! ! Department ofGeologv, Faculty of.Natural Sciences and Engineering, University of Ljubljana, Aškerčeva c. 12, 1000 Ljubljana: ales.soster(Ogeo.ntf-uni-lj.si ? Faculty ofMining and Geology, Đušina 7, 10000 Belgrade 3 Pišnja vas 9. 3212 Vojnik Introduction The Okoška ...
    ... conditions. In addition, the S2 and Q2 inclusions follow the growth zonesofthe crystals, indicating the simultaneouscrystal growth and fluid nclusion entrapement. Conversely, thc itregular, needle-like, and ameboid inclusions ofQ1 and S1 occur in linear, subparallel structures and have a higher proportion ...
    ... whereas the gangueis primarily quartz, sericite and adularia. The predominantminera! style is stockwork breccia with open-space veins and abundantdruse-lined cavities fill terminated crystals of gangue and ore minerals. Ore disseminations are minor and. restricted to pyrite. Ore minerals have not been ...

  • Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?

    Стефан Петровић, Наталија Батоћанин (2020)
    У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...
    Рудник, Брђани, харцбургити, серпентинити, талк
    ... lower contents of Mg and Si, and higher alumina. Talc is almost of ideal composition: [Mg2.98Fe0.03-0.04Si3.98–3.99O10(OH)2] (DEER et al., 1971, 1972). It commonly forms after pyroxene, in respect to olivine. Talc is replacing pyroxene over fissure systems in the beginning and encounters the whole ...
    ... (1976): Stability of chrysotile and antigorite in the serpentine multisystem. Schweiz. Mineral. Petrogr. Mitt., pp. 79-93. FAUST, T. G. & FAHEY, J. J. (1962): The Serpentine-Group Minerals - Studies of the natural phases in the system MgO-SiO2-H2O and the systems containing the congeners of magnesium ...
    ... (hornfels and skarn), and acid and ultrabasic igneous rocks. Low-grade metamorphosed coarse-grained rocks include sandstones and conglomerates of preserved primary protolith textures. The alternation of skarn and hornfelses represents the most abundant lithology. It is cut by apophyses and a quartzlatite ...

  • Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model

    Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković, Biljana Rujević (2024)
    Ova studija predstavlja analizu sentimenta srpskih starih romana iz perioda 1840-1920, koristeći veliki jezički model (LLM) Mistral za tehniku učenja sa zasnovani na takozvanim "zero" i "few-shot" pokušajima. Glavni pristup uvodi inovacije osmišljavanjem istraživačkih upita (promptova) uključuju tekst sa uputstvom za klasifikaciju bez primera i na osnovu nekoliko primera, omogućavajući jezičkom modelu da klasifikuje osećanja u pozitivne, negativne ili objektivne kategorije. Ova metodologija ima za cilj da pojednostavi analizu osećanja ograničavanjem odgovora, čime se povećava preciznost ...
    zero-shot, few-shot, sentiment, Serbian, Mistral model

  • 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
    ... nanoparticle aggregation: imaging and rational design of lyoprotection. J. Control. Release 248, 125–132. https://doi.org/10.1016/j.jconrel.2017.01.019. Ottenhof, M.A., MacNaughtan, W., Farhat, LA., 2003. FTIR study of state and phase transitions of low moisture sucrose and lactose. Carbohydr. Res. 338 ...
    ... both samples. Trehalose can have an effect on the crys- tallization of mannitol and vice versa, and the nature of this interaction is mainly determined by their ratio. In a study by Jena et al. (2016) on frozen systems, mannitol crystallized in samples with a high mannitol-trehalose ratio, while ...
    ... instability by formulation and process optimization. Eur. J. Pharm. Biopharm. 165, 345–360. https://doi.org/10.1016/j.ejpb.2021.05.024. 'Trenkenschuh, E., Savšek, U., Friess, W., 2021. Formulation, process, and storage strategies for lyophilizates of lipophilic nanoparticulate systems established based on ...

  • Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu

    Nikoleta Aleksić (2021)
    ... Mir, M., Ali, M.N., Sami, J., Ansaari, U. (2014). Review of Mechanics and applications of auxetic structures. Advances in Materials Science and Engineering, Article ID 753496, 17 pages [8] Santulli, C., Langella, C. (2016). Study and development of of concept of auxetic structures in bio-inspired design ...
    ... methods: A review. Journal of Environmental Chemical Engineering, 6, 4676-4697. [3] Pavithra, K., Kumar, P., Jaikumar V., Rajan, P. (2019) Removal of colorants from wastewater: A review on sources and treatment strategies. Journal of Industrial and Engineering Chemistry, 75, 1-19. [4] Machado, S., Pinto ...
    ... Removal of As(III) and Cr(VI) from aqueous solutions using “green”zero-valent iron nanoparticles produced by oak, mulberry and cherry leaf extracts. Ecological Engineering 90, 42- 49 [3] Bone, B.D., Barnard, L.H., Boardman, D.I., Carey, P.J., Hills, C.D., Jones, H.M., MacLeod, C.L. and Tryer, M. (2004) ...

  • Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series

    Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)
    Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...
    deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija
    ... S. Fuzzy time series and its models. Fuzzy Sets Syst. 1993, 54, 269–277. [CrossRef] 18. Zadeh, L.A. Fuzzy sets. Inform. Control 1965, 8, 338–353. [CrossRef] 19. Zadeh, L.A. The Concept of a Linguistic Variable and its Application to Approximate Reasoning. In Learning Systems and Intelligent Robots; ...
    ... such as medicine, biology, genetics, finance, engineering and many others [15]. The basic concept of the singular spectrum analysis is well presented in the paper by Hassani et al. [16]. Energies 2021, 14, 3710 5 of 20 According to Equation (2), x and z coordinates of the marker m over time correspond ...
    ... MAPEi, (30) MAPEi and AMAPE are represented in Table 10. Energies 2021, 14, 3710 15 of 20 Within the grouping step, we only have signal and noise components and we use two groups of indices, I; = {Avy,,Ay, } and Iz = {Av,,Ay, } and associate the group I; with signal component and the group I with noise ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology