Претрага
352 items
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Утицај соларне активности на здравље човека
... zavisi i od geografske širine i nadmorske visine. Raste sa povećanjem geografske širine, odnosno, polovi primaju više radijacije nego ekvatorijalni regioni jer oko ekvatora magnetno polje Zemlje skreće naelektrisane čestice. Intenzitet zračenja raste sa nadmorskom visinom usled tanjeg sloja vazduha ...Каролина Ђукић, Весна Цветков, Весна Дамњановић. "Утицај соларне активности на здравље човека" in VII Меморијални научни скуп из заштите животне средине доцент др Милена Далмација Нови Сад, 01-02. април 2019, Природно-математички факултет, Департман за хемију, биохемију и заштиту животне средине (2019)
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Effects of Energy Production and Consumption on Air Pollution in Serbia
Marija Živković (2019)Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...... necessity of improving efficiency in energy production, transmission, distribution and consumption in the at the global level, or level of the country, region etc 4. Nowadays the most of attention of is dedicated to reduction of carbon dioxide emission and mitigation of climate changes 5, while other pollutants ...Marija Živković. "Effects of Energy Production and Consumption on Air Pollution in Serbia" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
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Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... a vital role in improving the environment for residents and the ecological landscape, as well as contributing to the economic grow of the mining region. REFERENCES 1. 2. 10. 11. Ignatyeva, M., Yurak, V., Pustokhina N. Recultivation of Post-Mining Disturbed Land: Review of Content and ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
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Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa
Mirjana V. Banković (2018-07-13)Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta... viši od praga selektivnog otkopavanja i vrši se optimizacija podele na regionima između tih intervala, dok oni ostaju fiksirani. Procedura optimizacija u okviru jednog regiona vrši se na sledeći način: (7) Ukoliko visina regiona nije veća od dve minimalne visine podetaže (parametar MinVP), optimizacija ...
... podetaža M koji se računa tako što se pretpostavi da će ukupna visina regiona biti podeljena na podetaže maksimalne visine (parametar MaxVP). Posebno, ukoliko prva podetaža bloka ili poslednja podetaža bloka pripadaju trenutnom regionu, njihova visina se dodatno ograničava maksimalnom visinom prve podetaže ...
... podetaža N koji se računa tako što se pretpostavi da će ukupna visina regiona biti podeljena na podetaže minimalne visine (parametar MinVP); (10) Za vrednosti k od M do N pokreće se genetski algoritam koji pokušava da podeli region na k podetaža dok se ne nađe optimalno rešenje. Genetski algoritam je ...Mirjana V. Banković. "Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-07-13)
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An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction
Dejan Ćebić, Nebojša Ralević, Marina Marčeta. "An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction" in Mathematical Communications (2020)
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The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... parameters in determining the current position/condition and in defining the future development of all countries and regions. Demand for energy in the region of Southeast Europe is growing, but supply sources are increasingly limited and unevenly distributed. It is clear that the concept of energy security ...
... parameters in determining the current position/condition and in defining the future development of all countries and regions. Demand for energy in the region of Southeast Europe is growing, but supply sources are increasingly limited and unevenly distributed. It is clear that the concept of energy security ...
... comparable to BAU and increased capacities of additional UGSs to 1 BCM. This scenario is in line with the goals of the Energy Community in the SEE region [73] and it brings out existing interconnection with Hungry (capacity 11 mcm per day) and a new one with Bulgaria with capacity of 4.93 mcm per day ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
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An oilfield in Libya: A new model to enhance waste water disposal
Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković. "An oilfield in Libya: A new model to enhance waste water disposal" in Energy & Environment (2016)
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...... the Vardar zone in the wider sense (DIMITRIJEVIĆ, 1997; TOLJIĆ, 2006, 2016) and the Sava zone (SCHMID et al., 2008). The study area represents a region with complex geological features and is composed of various igneous and sedimentary rocks formed during the Mesozoic, Tertiary and Quaternary periods ...
... southern Pan- nonian Basin.‒ Monographs, Vol. CDL, 39, SANU, Belgrade, 1–146. KRSTIĆ, N. (1973): Biostratigraphy of the Congerian beds in the Belgrade region on the basis of Ostracoda.‒ Monographs, Vol. 4, Inst. Geol. Min. Expl. Investig. Nuclear Miner. Raw Mater., Belgrade, 1–158. KRSTIĆ, N. (1985): ...
... Mining and Geology, University of Belgrade, 162 p. TOLJIĆ, M. (2016): Tectonic evolution of the European margin and Neotethys suture zone in the region of Belgrade (Northern Šumadija-Serbia).– Wseas Transactions on Environment and Development, 12, 268‒277. TOLJIĆ, M., NENADIĆ, D., STOJADINOVIĆ, U ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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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... T., JAMIČIĆ, D., BALEN, D., BELAK, M. & TRAJANOVA, M. (2008): Devonian–Carboniferous pre-flysch and flysch environments in the Circum Pannonian Region.– Geologica Carpathica, 59/2, 159–195. GEINITZ, H.B. (1867): Die organischen Überreste im Dachschiefer von Würzbach bei Löbenstein. [The organic ...
... B., SREMAC, J., ALJINOVIĆ, D., NOVAK, M. & SKABERNE, D. (2009): Late Variscan (Carboniferous to Permian) environments in the Circum Pan- nonian Region.– Geologica Carpathica, 60/1, 71–104. doi: 10.2478/v10096-009- 0002-7 YANG, R.C., JIN, Z.J., VAN LOON, A.J.T., HAN, Z.Z. & FAN, A.P. (2017): Climatic ...Miloš Radonjić. "Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)" in Geologia Croatica, Croatian Geological Survey (2020). https://doi.org/10.4154/gc.2020.13
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SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian
Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење... the database to provide clustering of dictionary (sub)entries using several criteria: by domain (for terminology and specialized vocabulary), by region (dialect), register, style etc. Interlinking of related words is envisaged as more explicit, on the level of lexical units (senses), which will enable ...
... Czech pubs’ (Ed.). 2) An editor may also provide an example from the non-standard language, which usually means that he/she comes from a specific region; in such a case, the source is marked by the abbreviation of the editor’s name. Editor’s intuition may and should be supported by the corpus data ...Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković. "SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian" in Electronic lexicography in the 21st century. Proceedings of the eLex 2019 conference , Lexical Computing CZ, s.r.o. (2019)
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Managing mining project documentation using human language technology
Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentationAleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja . "Managing mining project documentation using human language technology" in The Electronic Library (2018). https://doi.org/10.1108/EL-11-2017-0239
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Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia
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 ...Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić. "Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia" in Acta Geophysica, Springer (2019). https://doi.org/10.1007/s11600-019-00328-9
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‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions
Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban. "‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions" in Boletín de la Sociedad Española de Cerámica y Vidrio, Elsevier BV (2020). https://doi.org/10.1016/j.bsecv.2020.06.005
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The different approaches in seismic stratigraphy interpretation
Dejan Radivojević (2018)U tekstu su prikazana dva osnovna pristupa u seizmostratigrafskoj interpretaciji. Prvi kao polaznu osnovu ima seizmičke sekcije, čija se interpretacija u kasnijoj fazi koreliše sa bušotinskim podacima. Drugi u prvoj fazi analizira podatke dobijene dubokim bušenjem koji se kasnije korelišu sa seizmičkim sekcijama. Prikazan je hronološki redosled i objašnjen postupak pri seizmostratigrafskoj interpretaciji oba pristupa. Ovakav način interpretacije omogućio je naftnim kompanijama detaljnije i preciznije sagledavanje geoloških odnosa, smanjenje rizika istraživanja i racionalnije projektovanje razradnih bušotina.seizmostratigrafija, istraživanje nafte i gasa, karakteristične seizmičke sekvence, seiz-mofacijalna analiza... p 454, Tulsa, Oklahoma, 2008. [6] Pigott D. J. & Radivojević D, Seismic stratigraphy based chronostratigraphy (SBBC) of the Serbian Banat region of the Pannonian Basin. Cent. Europ. J. Geosci., 2 (4), 481–500, 2010. [7] Prskalo S, Istraživanje ugljikovodika seizmičkim metodama I, INA Industrija ...Dejan Radivojević. "The different approaches in seismic stratigraphy interpretation" in Tehnika – rudarstvo, geologija i metalurgija, Savez inženjera i tehničara Srbije, Beograd (2018). https://doi.org/10.5937/tehnika1802211R
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FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... vibrations, while band at 3223 cm ! represent overtone of bending vibrations (2v)(H.O)) (He et al., 2007). At the spectrum of the HDTMA bromide, in the region from 3050-2800 cm !, several bands occur (Fig. 1b). Shoulder at 3030 cm ! and band at 3018 cm ! represent vs(N-CHx) vibrations (Madejova et al. ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)
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Sitni, ali bitni: uloga sitnih sisara, herpetofaune i mekušaca u rekonstrukciji pleistocenskih paleosredina
Fosilni ostaci životinja i biljaka imaju važnu ulogu u rekonstrukciji pleistocenskih paleosredina. U ovom radu opisan je značaj tri grupe životinja: sitnih sisara, herpetofaune I mekušaca. Mada je za rekonstrukciju važan sastav čitave asocijacije, nalasci pojedinih vrsta mogu biti dovoljno indikativni da otkriju tip staništa ili klimatske uslove. Posebnu teškoću pri rekonstrukciji paleosredina u Srbiji predstavlja činjenica da klimatske promene na Balkanskom poluostrvu nisu bile tako oštre kao u srednjoj i zapadnoj Evropi, pa ne postoji drastična razlika u ...... appear in the warmer stages of the Quaternary climatic cycles. However, it should be borne in mind that the applicability of these schemes in our region is limited, due to different climatic conditions and the distribution of herpetofauna during the Pleistocene, so it is necessary to develop a model ...Katarina Bogićević, Draženko Nenadić, Dragana Đurić, Mihajlo Jovanović, Aleksandra Savković. "Sitni, ali bitni: uloga sitnih sisara, herpetofaune i mekušaca u rekonstrukciji pleistocenskih paleosredina" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine, Neum, 21.-23.09.2023., Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Оптимизација управљања процесима рекултивације површинских копова угља
Bojan S. Dimitrijević (2014-05-30)Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење... два различита лигнитска басена: горњи и доњи Лужички лигнитски регион, од којих доњи представља важнији. Ова област се налази у југоисточном делу Бранденбурга, северно-источном делу Саксоније, Немачка. Историја геолошкoг регионa Лужичког лигнита почела је пре око 40 милиона година, у доба терцијара ...
... проблема са акцентом на математичку методу PROMETHEE, која је послужила у завршном делу тезе за тест опитна истраживања на три полигона у земљи и региону: 1. Површински коп Кленовник - костолачки басен угља; и 2. Тамнава Западно Поље - Колубарски угљени басен у Србији, као и 3. Површински коп Богутово ...
... l method PROMETHEE, serving in the closing section of the thesis for test experimental research performed in three subject in our country and the region: 1. Open pit mine Klenovik - Kostolac Coal Mining Basin, 2. Tamnava West Field - Kolubara Coal Mining Basin in Serbia as well as 3. Open pit mine ...Bojan S. Dimitrijević. "Оптимизација управљања процесима рекултивације површинских копова угља" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-05-30)
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Pre-failure deformation monitoring as rockfall prediction tool
... ić M 2017 Rockfall monitoring and simulation on a rock slope near Ljig in Serbia. Proc. of the 3rd Reg. Symp. Landslides in the Adriatic Balkan Region. 11-13 October, Slovenia, Ljubljana, pp 83-88 [11] Brodu N and Lague D 2012 3D Terrestrial LiDAR data classification of complex natural scenes ...Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
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The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)... Banja. The granitoid intrusion of Surdulica, a product of Tertiary magmatism, is believed re- sponsible for the large hydrothermal potential of the region, and for lithothermal potential; there are other theories that propose the presence of a younger intrusion. Total electric power output from this ...Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
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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... Journal of Operational Research, 95: 649–655. CHANG, Y.H., CHENG, C.H. & WANG, T.C. 2003. Performan- ce evaluation of international airports in the region of East Asia. Proceedings of the Eastern Asia Society for Transportation Studies, 4: 213–230. CHOU, T.Y. & LIANG, G.S. 2001. Application of a fuzzy ...Dragoljub Bajić, Dušan Polomčić. "Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia" in Geološki anali Balkanskoga poluostrva, Belgrade : University of Belgrade - Faculty of mining and geology (2014). https://doi.org/10.2298/GABP1475103B