Претрага
1232 items
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Razvoj rudarstva i metalurgije olova i cinka u rudniku ,,Trepča’’ – Stari Trg
Posle seobe Srba 1690. i 1735. godine, dolazi do prestanka eksploatacije rudnika na prostoru sadašnje Srbije i nakon zastoja od blizu 200 godina, aktivirana je rudarsko-metalurška delatnost u Srbiji u drugom kvartalu 20. veka. Prve koncesije otkupili su Englezi 1926. godine, zatim se aktiviraju rudnici u Starom Trgu (1927.), Kišnici (1927.), Ajvaliji (1930.), Novom Brdu (1933.), a u Zvečanu počinje da radi Flotacija (1930.) i Topionica sa Rafinerijom olova (1939.). U Kosovskoj Mitrovici počinje sa radom hemijska industruja 1961. ...Slobodan Trajković, Branislav Nikolić, Željko Kamberović, Sanja Bajić. "Razvoj rudarstva i metalurgije olova i cinka u rudniku ,,Trepča’’ – Stari Trg" in Bakar (2022). https://doi.org/10.5937/bakar2202011T
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Application of the Fuzzy theory in the evaluation of operating parameters of auxiliary mechanization on open-cast coal mine, case study: pipelayers
Achieved operating parameters are the main indicator of the work quality and selection of mining machines. The effectiveness of a coal mine is correlated with the availability of basic and auxiliary machines. The main task of auxiliary machines in lignite mines is to achieve optimal working conditions. From an economic point of view, auxiliary machines generate up to 20% of the lignite mines' total costs. These are the primary reasons for analyzing their current work and making decisions in ...Stevan Djenadić, Miloš Tanasijević, Filip Miletić, Predrag Jovančić. "Application of the Fuzzy theory in the evaluation of operating parameters of auxiliary mechanization on open-cast coal mine, case study: pipelayers" in 8th Balkan Mining Congress, Belgrade, September 28-30, Rudarski instutut (2022)
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Assessment of river sediment quality according to the eu water framework directive in large river fluvial conditions. A case study in the lower Danube river basin
Atanas Hikov, Anca-Marina Vîjdea, Irena Peytcheva, Gyozo Jordan, Prvoslav Marjanović, Zlatka Milakovska, Petyo Filipov, Milena Vetseva, Albert Baltres, Veronica Elena Alexe, Lidia-Lenuța Bălan, Marko Marjanović, Vladica Cvetković, Kristina Šarić & The Simona Project Team (2023)Monitoring, uzorkovanje, hazardne supstance, teški metali, organske supstance, geološka osnova, standard kvaliteta životne sredine (EQS), basen reke DunavAtanas Hikov, Anca-Marina Vîjdea, Irena Peytcheva, Gyozo Jordan, Prvoslav Marjanović, Zlatka Milakovska, Petyo Filipov, Milena Vetseva, Albert Baltres, Veronica Elena Alexe, Lidia-Lenuța Bălan, Marko Marjanović, Vladica Cvetković, Kristina Šarić & The Simona Project Team. "Assessment of river sediment quality according to the eu water framework directive in large river fluvial conditions. A case study in the lower Danube river basin" in Carpathian Journal of Earth and Environmental Sciences (2023). https://doi.org/10.26471/cjees/2023/018/251
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Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia
Noise emissions are a significant environmental impact caused by the mining industry in all technological phases of surface mining, mineral processing, and waste disposal. This paper presents the role of noise impact assessment and control in large-scale surface mining operations. Mine planning develops the model of mining operations, ore excavation, and waste dumping scheduling and processing rates, including spatial distribution of mining activities. Such a level of mine planning requires an environmental impact assessment study. This can be achieved ...Uros Pantelic, Petar Lilic, Aleksandar Cvjetic, Nikola Lilic. "Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia" in Sustainability, MDPI AG (2023). https://doi.org/10.3390/su15031798
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Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release
The interaction of dodecylsulfate anions (DS−) with homoionic Ca-, Mg-, Ni-, Cu-, Cd-, Pb- and Fe-montmorillonites were investigated. Mg- and Cd-montmorillonite do not adsorb DS−, and an anion exchange at the edges of the clay mineral does not take place. Three different adsorption processes are identified on the other montmorillonites: i) Fe-montmorillonite is covered with amorphous iron hydroxide, and DS−-anions are bound at positively charged sites. ii) On Ca- and Pb-montmorillonite DS− is precipitated as Me(DS)2. iii) On Ni- ...M. Ilic, J. Gonzalez, A. Pohlmeier, H. D. Narres, M. J. Schwuger. "Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release" in Colloid Polymer Science, Springer Science and Business Media LLC (1996). https://doi.org/10.1007/BF00656626
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Coal: exploration, reserves, and utilization
Dragana Životić, Gligor Jovanovski, Vladimir Simić, Ivan Boev, Vesna Cvetkov, Petre Makreski, Dušan Polomčić, Vesna Ristić Vakanjac (2024)Coal exploration is a very demanding task, highly dependent on geological and economic factors and the utilization of coal. This lecture text includes information on a variety of geological techniques used in the exploration of coal and coal-bearing sequences, as well as on the calculation, assessment, classification, and reporting of coal resources and reserves. The main features of coal utilization and some environmental aspects are explained briefly. Special attention is paid to the by-products of coal utilization, their uses, ...угаљ, истраживање, ресурси, резерве, коришћење, сагоревање, карбонизација, гасификација, угљенични материјалиDragana Životić, Gligor Jovanovski, Vladimir Simić, Ivan Boev, Vesna Cvetkov, Petre Makreski, Dušan Polomčić, Vesna Ristić Vakanjac. "Coal: exploration, reserves, and utilization" in ChemTexts, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s40828-023-00186-5
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Comparation of photogrammetry and terrestrial laser scanning methods for erosion monitoring in the area of Devil’s Town: project “Demonitor”
Project "Devils’ town Erosion MONITORing - DEMONITOR" involves the monitoring of accessible earth pillars in the area of Devil’s town, by using a combination of several non‐invasive methods. Terrestrial laser scanning (TLS) and photogrammetric imaging with unmanned aircraft (UAV) as a platform showed as great solutions for 3D modeling of this site and erosion monitoring. In this work it is shown that using manual free flight mode for imaging with UAV gave much better results than the missions performed ...Brodić Nenad, Samardžić-Petrović Mileva, Đurić Dragana, Martinenko Anastasija. "Comparation of photogrammetry and terrestrial laser scanning methods for erosion monitoring in the area of Devil’s Town: project “Demonitor”" in 16th International conference on contemporary theory and practice in construction STEPGRAD, Banja Luka, University of Banja Luka Faculty of Architecture, Civil Engineering and Geodesy (2024). https://doi.org/10.7251/stp202401079B
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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Three new Sr-bearing arsenates, hydrothermally synthesized in the system SrO–MO–As2O5–H2O (M2+ = Mg, Cu, Zn)
Tamara Đorđević, Ljiljana Karanović (2018)During systematic research on the mineral-related synthetic arsenates, with particular focus on their structural and spectroscopic classification, three new Sr-containing arsenates Sr2Mg(AsO4)2· 2H2O (1), Sr2Zn4(AsO4)4·H2O (2) and Sr2Cu7(AsO4)6 (3) have been synthesized under low-temperature hydrothermal conditions in the system SrO MO As2O5 H2O (M 2þ = Mg, Zn, Cu). Their crystal structures were determined using room-temperature single-crystal X-ray diffraction data and refined to the following R-values: 1– R1 = 0.025; 2– R1 = 0.030; 3– R1 = 0.035. Compounds ...стронцијум, арсен, арсенати, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманска спектроскопијаTamara Đorđević, Ljiljana Karanović. "Three new Sr-bearing arsenates, hydrothermally synthesized in the system SrO–MO–As2O5–H2O (M2+ = Mg, Cu, Zn)" in European Journal of Mineralogy, Schweizerbart (2018). https://doi.org/10.1127/ejm/2018/0030-2749
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Transition pathways of household heating in Serbia: Analysis based on an agent-based model
To explore pathways of the energy transition of household heating, an agent-based simulation model was developed for the case of the Serbian household sector. The model is focused on individual entities (households) with the objective to explore the effects of policy instruments on energy transition in households with individual heating systems. Empirically collected survey data were used as input for households’ attitudes towards sustainable heating. Simulations showed that the proposed instruments would lead to higher heating efficiency and less ...energetska tranzicija, modeliranje bazirano na agentima, sistemi grejanja, sektor domaćinstva, obnovljivi izvori energije, emisija CO2Boban Pavlović, Dejan Ivezić, Marija Živković. "Transition pathways of household heating in Serbia: Analysis based on an agent-based model" in Renewable and Sustainable Energy Reviews, Elsevier BV (2022). https://doi.org/10.1016/j.rser.2022.112506
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Challenges of Energy Transition in the Individual Heating Sector
U radu su prikazani rezultati istraživanja i ankete koja je sprovedena 2020. godine u domaćinstvima sa individualnim sistemima grejanja u Srbiji. Cilj ankete je bio da se sagleda stanje individualnih sistema grejanja, ali i stavovi vlasnika sistema vezano za energetsku tranziciju. Rezultati ukazuju na zastarelost sistema grejanja, nisku efikasnost, nedovoljna ulaganja u primenu mera energetske efikasnosti i nedostatak finansijskih sredstava za ulaganje u održivo grejanje. Osnovni prioriteti kod izbora načina grejanja jesu troškovi kupovine sistema i troškovi energenta, dok ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Challenges of Energy Transition in the Individual Heating Sector" in Energija, ekonomija, ekologija, University Library in Kragujevac (2022). https://doi.org/10.46793/EEE22-1.17P
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Оцјена водопропусности понорске зоне Шуковићу (Цернићко поље) помоћу Лижоновог теста
One of the specificities of reservoirs forming in highly karstified terrains is reflected in the wide range of unknowns, specifically during reservoir formation, filling and operation. Unfortunately, despite complex research, many reservoirs constructed in karst terrains have problems with water losses from the reservoir to other aquifers due to ponor and ponor zones which are a common in the karst of Eastern Herzegovina. One of such zones is Šuković ponor located in the southern part of the Cerničko polje ...Петар Војновић, Саша Милановић, Љиљана Васић. "Оцјена водопропусности понорске зоне Шуковићу (Цернићко поље) помоћу Лижоновог теста " in Мултидисциплинарна конференција “Kарст 2022 - Значај, стање и перспективе коришћења и заштите ресурса у карсту", Српска академија наука и уметности (2022)
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Football terminology: compilation and transformation into OntoLex-Lemon resource
У овом раду представља се пројекат који је у развоју, креирање првог дигиталног фудбалског речника на српском језику, као и да демонстрација примене модела OntoLex и љегових модула. OntoLex-FrAC модул укључује информације о учесталости и примерима употребе екстрахованих из корпуса. У овом случају, креиран је корпус за специфичан домен под називом СрФудКо, који садржи чланке вести о фудбалу на српском језику. Вишечлани термини аутоматски су екстраховани из српског корпуса, а затим ручно евалуирани и класификовани као спортски или ...Jelena Lazarević, Ranka Stanković, Mihailo Škorić, Biljana Rujević. "Football terminology: compilation and transformation into OntoLex-Lemon resource" in LDK 2023 – 4th Conference on Language, Data and Knowledge, 12-15 September in Vienna, Austria, Lisabon : NOVA FCSH - CLUNL (2023). https://doi.org/10.34619/srmk-injj
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Integrated energy planning approach for accelerating energy transition of households
The success of energy transition planning depends on several influential and variable factors that need to be considered and tracked in modeling to support policymakers. Expert-based energy models are mainly developed following the assumptions of experts and, in most cases, a limited number of stakeholders. This top-down modeling approach will provide satisfactory results in centrally managed energy sectors (electricity generation and distribution, district heating, etc.), where further decisions could be projected relatively precisely. However, the same approach will not ...Energetsko planiranje, Integrisano energetsko modeliranje, Energetska tranzicija, Domaćinstva, Individualno grejanje, LEAPBoban Pavlović, Marija Živković, Dejan Ivezić. "Integrated energy planning approach for accelerating energy transition of households" in Energy Reports, Elsevier BV (2023). https://doi.org/10.1016/j.egyr.2023.11.016
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Geotouristic Approach to the Elements of Geocultural Heritage by Using UGAM Model: UNESCO World Heritage Site Felix Romuliana (Zaječar, Serbia)
Miloš Marjanović, Rastko Marković, Kristina Šarić, Aleksandar R. Radivojević, Aleksandar Antić, Đoko Raičević, Randall J. Schaetzl, Slobodan B. Marković (2024)This article presents a new Urban Geoheritage Assessment Model (UGAM) for the tourism potential of urban geoheritage. The model was applied to the well-known archaeological site Felix Romuliana (Serbia), so as to determine if the site has the potential to become an urban geosite. To support the UGAM model, a mineralogical-petrographical examination of the building stone available to visitors (both on the site and in the Zaječar National Museum) was carried out, and geological outcrops near the site were ...Miloš Marjanović, Rastko Marković, Kristina Šarić, Aleksandar R. Radivojević, Aleksandar Antić, Đoko Raičević, Randall J. Schaetzl, Slobodan B. Marković. "Geotouristic Approach to the Elements of Geocultural Heritage by Using UGAM Model: UNESCO World Heritage Site Felix Romuliana (Zaječar, Serbia)" in Geoheritage, Springer (2024). https://doi.org/https://doi.org/10.1007/s12371-024-00940-2
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Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije
Branko R. Miladinović (2016-04-27)Ugalj predstavlja energent na čijoj osnovi se razvija privreda celog sveta.Zato mu se pridaje velika pažnja u eksploataciji i preradi, bez obzira na mnogeštetne uticaje na životnu sredinu, a posebno na efekat staklene bašte koji sestvara emisijom zagađujućih materija u atmosferu radom termoelektrana naugalj.U Srbiji, resurs koji se danas u najvećoj meri koristi u proizvodnjielektrične energije je ugalj i on učestvuje u proseku sa 70 %. U strukturi ukupneproizvodnje ugljeva, dominiraju lignitski ugljevi sa učešćem od 98 %, a ...Srbija, kameni i mrki ugalj, podzemna eksploatacija, preradauglja, rudničke vode, hemijski sastav, emisija zagađujućih materija, životnasredinaBranko R. Miladinović. "Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-04-27)
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Утицај похабаности резних елемената роторног багера на ниво вибрација погона за копање
Филип Милетић (2023)У докторској дисертацији је анализиран утицај похабаности резних елемената роторног багера на потрошњу електричне енергије и ниво амплитуде вибрација погона за копање. Креиран је модел који у функцији стања резних елемената дефинише зависност разматраних физичких феномена. За развој модела примењене су једначине теорије осцилација и Ватметарска метода [1] којом се одређује потрошња електричне енергије. За верификацију модела извршена су мерења на роторном багеру SRs2000.32/5+VR ангажованом на откопавању откривке на површинском копу Тамнава–Западно поље. Обављено је пет мерења. Резни елементи су ...Филип Милетић. Утицај похабаности резних елемената роторног багера на ниво вибрација погона за копање, Београд : [Ф. Милетић], 2023
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Application of cross-correlation analysis of karst spring discharges with the purpose of understanding karst hydrogeology systems
Veljko Marinković, Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Branislav Petrović, Petar Vojnović (2024)Када посматрамо одређену издан, прихрањивање подземних вода ове издани се може вршити 1. на рачин падавина, 2. на рачун површинских токова у деловима где постоји добра хидрауличка веза подземних и површинских вода и где је ниво површинског тока на вишој коти од нивоа подземних вода, или понирањем површинских вода, и 3. на рачун подземних вода других типова издани. Код издани формираних у оквиру карстних масива, прихрањивање ових вода најчешће се врши инфитрацијом падавина и понирањем површинских токова тамо где ...Veljko Marinković, Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Branislav Petrović, Petar Vojnović. "Application of cross-correlation analysis of karst spring discharges with the purpose of understanding karst hydrogeology systems" in Conference proceedings, Faculty of Technical Sciences, Novi Sad (2024). https://doi.org/10.24867/SYMOPIS-2024-51-074
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Application of cross-correlation analysis of karst spring discharges with the purpose of understanding karst hydrogeology systems
Vesna Ristić Vakanjac, Veljko Marinović, Ljiljana Vasić, Saša Milanović, Branislav Petrović, Petar Vojnović (2024)Када посматрамо одређену издан, прихрањивање подземних вода ове издани се може вршити 1. на рачин падавина, 2. на рачун површинских токова у деловима где постоји добра хидрауличка веза подземних и површинских вода и где је ниво површинског тока на вишој коти од нивоа подземних вода, или понирањем површинских вода, и 3. на рачун подземних вода других типова издани. Код издани формираних у оквиру карстних масива, прихрањиванје ових вода најчешће се врши инфитрацијом падавина и понирањем површинских токова тамо где ...Vesna Ristić Vakanjac, Veljko Marinović, Ljiljana Vasić, Saša Milanović, Branislav Petrović, Petar Vojnović. "Application of cross-correlation analysis of karst spring discharges with the purpose of understanding karst hydrogeology systems" in 51. Simpozijum o operacionim istraživanjima, Tara, 16-19.9.2024, Faculty of Technical Sciences, Novi Sad (2024). https://doi.org/https://doi.org/10.24867/SYMOPIS-2024-51-074
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Geochronological and geochemical studies on crystalline rocks from the central Serbo-Macedonian massif with implications on its pre-Alpine evolution
Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2014)Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko. "Geochronological and geochemical studies on crystalline rocks from the central Serbo-Macedonian massif with implications on its pre-Alpine evolution" in Proceedings of the XX CBGA Congress, Tirana, Albania, 23 – 29 September 2014 Jan-14, Tirana, Albania:Buletini i Shkencave Gjeojoglike (2014): 195-195