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Упит dcterms_subject_txt:scenarios of development

2843 items

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ...  purpose. The frequent use of geophysical  methods in archeology has encouraged the development of the techniques of research, data processing  and  interpretation of  results, which  led  to a new discipline, known as Archaeological Geophysics. The  greatest advantage of Archaeological Geophysics  is that  ...
    ...  by the degree of homogeneity (N). The degree of homo‐ geneity is the measure of the decrease of the intensity of the magnetic field with the distance from the  source of the anomaly. For simple models, it is interpreted as a structural index (Thompson, 1982) and  defines the type of targets used in ...
    ... the analytical signal network. Such a method of detection of  peaks can be used to estimate the depth to the upper surface of the source of anomalies.  Based on the results of the test on synthetic data, for the calculation of the depth to the source  of the magnetic anomalies at the site Kremenite ...

  • Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici

    Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković (2023)
    Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...
    ... appearance of salamander remains indicates that the cave was most likely surrounded by dense forest. The proximity of the river provided a safe environment for the development of tadpoles. Due to its toxicity, it is most likely that the remains of the salamander did not enter the cave as prey of some ...
    ... lake in the vicinity of the cave. The finding of these rare amphibians in the fossil associations of the Pleistocene caves of Serbia is another piece of the puzzlie of our interpretation of paleoenvironments. Acknowledgement: This work was funded through the NEEMO Project of the Science Fund ofthe ...
    ... Triturus karelinii Abstract: The fossil fauna of the Pleistocene caves reflects the composition of the fauna of their surroundings. Most often, they contain the remains of large Ice Age mammals that used it as a habitat. Along with them, the remains of other small vertebrates such as small mammals ...

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... at an angle of 40 to 50°. Varia- tions of the dip directions of bedding planes and their dip angles are due to the deformed state of the whole unit. Deformational fabrics are composed of a series of cleavages which significantly disrupt the primary sedimentary structures. Development of seve- ral ...
    ... tectonic controls of lacustrine hyperpycnite origination in the Late Triassic Ordos Basin, central China: Implications for unconventional petroleum development.– AAPG Bulletin, 101/1, 95–117. doi: 10.1306/06101615095 ZAVALA, C., ARCURI, M. & BLANCO VALIENTE, L. (2012): The importance of plant remains ...
    ... modes of transport was limited by the insufficient quantity of the obtained sedimentological samples. This led to the use of fossils as an in- dicator of hyperpycnal transport. The presented study could be used as a starting point for a more detailed petrological analysis of the provenance of the ...

  • Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia

    Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić (2019)
    We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...
    funkcije raspodele gustine, lateralna raspodela gustine, karta gustine podloge

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • 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

  • Remedijacija otpadnih voda Rudnika prirodnim zeolitom

    Igor Veličković (2024)
    U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...
    flotation waste water, zeolite tuff, purification
    ... 59, 1320. Robertson, A.H.F., Karamata, S., Šarić, K., 2009. Overview of ophiolites and related units in the Late Palaeozoic-Early Cenozoic magmatic and tectonic development of Tethys in the northern part of the Balkan region. Lithos 108 (1—4), 1—36. Slovenec, D., Bermanec, V. 2006. Sistematska ...
    ... Robertson, A.H.F., Mountrakis, D. (Eds.), Tectonic Development of the Eastern Mediterranean Region, Geol. Soc. Spec. Publ. vol. 260. pp. 155—178. Kašić, V.D., Simić, V., Životić, D., Radosavljević-Mihajlović, A.S., Stojanović, J.N. 2017. Mineraloška i kristalohemijska svojstva minerala HEU-tipa iz ležišta ...
    ... paper discusses the purification of waste flotation water from the area of the Rudnik mine with natural zeolite tuff from the Jastrebac mountain. The purification of waste flotation water from the area of the Rudnik mine with natural zeolitic tuff from the slopes of the Jastrebac mountain proved to ...

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... the realization of profits, are a thing of the past. Successful business in conditions of limited resources is impossible without many analysis of the technical and economic parameters and detailed planning of all possible scenarios of production. Due to availability of the coal resources ...
    ... "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 development for the period ...
    ... pit limits, geometry of benches or technology, was not a part of interest for this study, and are simply as it is. 2.1.4. Design of pit benches Design of pit benches is one of the most important and critical phases in mine planning of pit production. It’s a part of long term planning, and ...

  • FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... interaction between the aromatic benzene ring of S-metolachlor and the aromatic benzene ring of the organic complex (a-n bonds). ACKNOWLEDGMENT This research was funded by the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant no. 451-03-9/2021-14/200116) ...
    ... montmorillonite (25% of CEC), 34.5 mmol/100 g of Na-montmorillonite (50% of CEC), 51.75 mmol/100 g of Na-montmorillonite (75% of CEC), and 69 mmol/100 g of Na- montmorillonite (100% of CEC). The reaction mixture was continuously stirred on the magnetic stirrer, at the temperature of 50%C. After the mo ...
    ... dropwise addition of 100 mL of HDTMA or PTMA aqueous solution, with appropriate concentration of organic complex, into the aqueous suspension of the NaM clay. Four different concentrations of organic cations were selected for the monitoring of the herbicide adsorption: 17.25 mmol/100 g of Na- montmorillonite ...

  • Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations

    Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković (2024)
    The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...
    dip-slip faults, vertical gravity gradients, field data analysis
    ... ACKNOLEDGEMENT The funds are provided by the Ministry of science, technological development and innovation of the Republic of Serbia, based on contract no. 451-03-65/2024- 03/200126. REFERENCES Essa K.S., Gćraud Y., Diraison M., 2021: Fault parameters assessment from the gravity data profiles ...
    ... Sretković TUniversity of Belgrade - Faculty of Mining and Geology, Belgrade, Republic of Serbia; e-mail: ivana.vasiljevicorgf.bg.ac.rs Abstract The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme ...
    ... Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. Both the advantages and the limitations of the method based ...

  • Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains

    Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková (2014)
    carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys
    ... work of Daniela Reha4kova was supported by the Grant Agency of the Slovak Republic VEGA 2/ 0068/11, VEGA 2/0042/12 and LPP 0120-09. The work of Ne- venka Djerić and Špela Goričan was partly supported by the Min- istry of Education, Science and Technological Development of the Republic of Serbia ...
    ... Hisashi Suzuki is acknowledged for comments on the taxonomy of radiolarians, althtough not all of these suggestions were implemented. REFERENCES Aubrecht, R. & Ožvoldov4, L., 1994. Middle Jurassic — Lower Cretaceous development of the Pruskć Unit in the western part the Pieniny Klippen Belt ...
    ... on a peculiar sedimcentary succes- sion of Middle-Late Jurassic age, exposed in the Tatra Mountains (Central Western Carpathians). This succession, belonging to the Križna Nappe, is characterized by a typical Tethyan basinal development with dominance of carbo- nate-biosiliceous sedimentation ...

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... strength in order to create an dynamic model of anisotropy investigation. Acknowledgement This paper is a part of the Projects ТR 36014 and ТR 33029 under the auspices of the Ministry of Education, Science and Technological Development, Republic of Serbia. REFERENCES ALEFELD G. and MAYER ...
    ... same for both approaches of determining the degree of anisotropy. The existence of that high similarity clearly indicates that it is an isotropic medium. During modelling of the anisotropic rock masses, knowing of the quantitative indicators of anisotropy would be of great use for creating reliable ...
    ... indicators of anisotropy: anisotropy coefficient K and degree of anisotropy D. The following section provides a detailed description of the concept of calculation and formulas. There are several ways to determine the degree of anisotropy and anisotropy coefficient. Our investigation of the degree ...

  • The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system

    Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)
    The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...
    микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми
    ... thank the Ministry of Education, Science and Technological Development of the Republic of Serbia for financial support under project number 172051, D. Richter and J. Allgaier (JCNS-1), Forschungszentrum, Julich, for providing experimen- tal equipment and the synthesis of Cy+gEio. Lutensol ...
    ... Serbia “Innovation Center Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia SFaculty of Chemistry, University of Belgrade, Belgrade, Serbia ŠFaculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia SCIENTIFIC PAPER UDC 547.533:66:544 DOI 10.2298/ ...
    ... a 1Fat·:ulty of Mining and Geology, Serbia IBG-3 Agrosph8are, Julich, Germany and Metallurgy, University of Belgrade, Belgrade, Serbia “Innovation Center Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia ŠFaculty of Chemistry, University of Belgrade, Belgrade ...

  • Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia

    Dragoljub Bajić, Dušan Polomčić (2014)
    A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...
    groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables
    ... study can be recommended for other fields of science and technology, where opti- mization is required and the best-possible decision needed. Acknowledgement Our gratitude goes to the Ministry of Education, Science and Technological Development of the Republic of Serbia for financing projects OI-176022 ...
    ... decembar 2014 BELGRADE, December 2014 1 University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology, Djusina 7, 11000 Belgrade, Serbia, e-mail: osljane@orion.rs 2 University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology, Djusina 7, 11000 Belgrade, Serbia, ...
    ... construction of the “Bezdan 1” PS. Figure 2 shows the lowering of the water table of the analyzed alternatives. For each alternative, the characteristics of the groundwater control system: the number of wells and their spatial distribution, and the time need- ed to achieve maximal lowering of the water ...

  • Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

    Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić (2019)
    Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology
    ... comments on the manuscript. The study was supported by Ministry of Education, Science and Technological Development ofthe Republic of Serbia, Project No. 176015. The study was made in the framework of Governmental Program 0135- 2018-0033 of Geological Institute RAS, Moscow, Russia. References BLOME ...
    ... in the valley of Lim River near the mouth of Bistrica River (A, outcrops ofthe Triassic lime- stones on the left side of Lim River valley; B, outcrops of the Triassic limestones on the right side of Lim River valley; note intensive folding; C, thin-bedded limestones with single bed of thick-bedded ...
    ... Drina-Ivanjica Unit -——— Late Jurassic obduction Sediments of ths passive margin of Adria (Jurassc) Sediments of th» passive margin of Adria (Pz anc T) o -—— Pre-Senonian thrusting Fig. 1. a, Main tectonic units in the central part of Balkan Peninsula {modified after BRAGIN et al., 2018); b ...

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... mine) show the potential to serve as a source of coalbedmethane to be captured and utilized for energy-generation pur- poses. The development of precise models enabling the prediction of GHG emissions from lignites still require the analysis of a larger number of samples, but our data confirm that flooded ...
    ... Rojas, C., Gervais, P., Cayot, N., Cacho, R., 2013. Redox potential: mon- itoring and role in development of aroma compounds, rheological properties and sur- vival of oxygen sensitive strains during themanufacture of fermented dairy products. Lactic Acid Bacteria - R & D for Food, Health and Livestock Purposes ...
    ... and the lower level of natural hazard in comparison to the exploitation of hard coal has made lignite an important source of energy. In 2019, 27 countries de- clared using this resource. In many of them, the combustion of lignite contributed to the generation of a significant part of the energy pro- duced ...

  • BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties

    Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)
    To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...
    ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition
    ... and ferroelectricity simultaneously [5-9]. The perovskite compounds are one of the most promising, types of magnetoelectric multiferroics [10-14]. The advantages of these novel materials can support the development of advanced devices and technologies [15-20]. There are only a few known multiferroic ...
    ... exclusive functionalities of ferromagnetism and ferroelectricity in the same phase, specifically at approximately room temperature [16]. To overcome the rareness and shortcomings of single- phase magpnetoelectrics, the scientific community has been focused on the development of advanced muhltifunctional ...
    ... Studentski Trg 12-16, 11000 Belgrade, Serbia Department of Materials, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia Faculty of Mining, and Geology, University of Belgrade, Djušina 7, 11000 Belgrade, Serbia Institute ...

  • Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara

    Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković (2020)
    Revitalizacija je proces ili skup tehničkih zahvata na mašini kojim se vrši zamena svih dotrajalih ili oštećenih delova metalne konstrukcije. Sastavni deo procesa revitalizacije je i modernizacija zastarele elektro-mašinske opreme. Principi revitalizacije sasvim sigurno nisu sadržani u okviru redovnog godišnjeg ili dnevnog održavanja. Oni predstavljaju održavanje onih veličina koje su značajne za mašinu kao celinu (u ovom slučaju rotorni bager). U ovom radu su analizirani rotorni bageri oznake SRs 1200. Na površinskim kopovima rudarskog basena Kolubara takvih bagera ima ...
    Rotorni bageri, revitalizacija, SRs1200