Претрага
2393 items
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The effect of finite driving rate on avalanche distributions
Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear Physics... regime and therefore described by constant values of power- law exponents. Owing to temporal overlapping and merging of avalanches, these distributions become markedly different with the increased driving rate which causes an increase of exponent values in the range of moderate driving rates and their ...
... driving regime and although the avalanche prop- erties (e.g. size) remain power-law distributed above critical disorder, the scaling exponents vary with the driving rate. For slow driving, the integral distribu- tions of nonspanning avalanches are almost the same as in the adiabatic and quasi-static driving ...
... parameters The avalanche size and duration distributions are often described by power-laws over a broad range of sizes and durations. Our simulations show that in a wide range of driving rate the integrated distributions of avalanche sizes follow the cutoff ended power-law D(S) = S−τ ′D ( S S0 ) , (4) ...Sonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević. "The effect of finite driving rate on avalanche distributions" in Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing (2021). https://doi.org/10.1088/1742-5468/ac1f12
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Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavoSanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... technology. Biomass is renewable as plants are regrown to replace old plants. BECCS could be sustainable in the near future since it produces energy while capturing GHGs. BECCS are operated in small scale due to its financial costs, and effects which include loss of biodiversity and deforestation due ...
... captured for enhanced oil recovery and carbon-based products manufacturing and finally carbon underground storage and transport based on the economic, environmental and policy factors. Figures 1.2 and 1.3 show a background of the carbon capture and storage process (CCS) and an example of a full-scale ...
... easily could condense steam and store CO» away from the atmosphere. Figure 2.6 Chemical looping schematic. 3. CARBON UTILIZATION ANALYSIS Carbon utilization can be an important option for providing an alternate source of renewable energy to produce various products. The method must be ecofriendly ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... implementation of energy cfficicncy measures, and switching to renewable cnergy SOUrcCes. The contribution of fossil fucls combustion to cnergy-related carbon dioxide emission is as follows: coal has the major sharc of 44%, oil of 33.7%, and natural gas of 21.6% [1]. The Oil and Gas (hereinafter ...
... sources of GHG emissions, including the exploration and exploitation of energy sources, conversion of primary cnergy sources into usable forms in refineries and power plants, transmission and distribution of fucls, and the use of fuels in stationary and mobile applications. These activities result in ...
... efficicncy mcasures regarding, the optimal operation of equipment [13], shifting to low carbon electricity and hcat gencration by introducing carbon-less intensive fuciIs, renewable and «#alternative fuels, or implementation of the more cfficicnt combined cycle [14]. A major reduction of emissions ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M
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Optimizacija vodosnabdevanja podzemnim vodama u Srbiji
Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić (2012)Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić. "Optimizacija vodosnabdevanja podzemnim vodama u Srbiji" in Zbornik radova XIV srpskog simpozijuma o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 17-20. maj 2012. godine , Beograd : Rudarsko-geološki fakultet (2012)
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Energetska efikasnost elektromotora na površinskim kopovima
Snežana Aleksandrović, Ilija Jeftenić (2023)Snežana Aleksandrović, Ilija Jeftenić. "Energetska efikasnost elektromotora na površinskim kopovima" in 11. Međunarodna konferencija “Ugalj i kritični materijali" CCM 2023, Zlatibor, 11-14. oktobar 2023. , Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Optimising in electrical energy consumption in mining plants
... ” U.S. Department of Energy's: Office of Energy Efficiency & Renewable Energy (EERE). U.S. Department of Energy's (DOE). 6] “Rotating electrical machines. Part 1: Rating:and performance,” BSI Standards Publication, BS EN 60034-1, 2010. 7} C. Khanchi and V. K. Garg, “Power Factor Improvement of ...
... LITERATURA 1} W.C.Tumerand S. Doty, “Effective Energy Management,” in Energy management handbook, 6th ed, Lilburn, GA: The Fairmont Press, pp. 9- 17, 2006. 2]} M.G. Patterson, “What Is Energy Efficiency?: Concepts, indicators and methodological issues,” Energy Pol, vol. 24, pp. 377-390, 1996. 3] T. ...
... portion of ectrical energy goes to motor driven systems. One of the ajor factors of electrical energy saving is the use of energy ficient electrical motors. Although each type of drive has its wn specific nature, by comparative overview of the haracteristics. of standard and energy ecfficient motors ...Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić. "Optimising in electrical energy consumption in mining plants" in 17th International Symposium INFOTEH-JAHORINA 2018, Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2018)
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Valorization of non-balanced coal reserves in Serbia for underground coal gasification
David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...... Today's economic, energy and environmental effects have highlighted outstanding, interests for the future of clean and renewable energy resources. While the world is looking at alternative energy resources to meet many of the imposed challenges, fossil fuels (primarily natural gas and gases related ...
... Tn the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively ...
... environmental aspect of UCG application in Serbia various additional renewable energy resources have been considered. The key one are solar photovoltaic systems that are proposed to be utilized to provide necessary onsite clean energy generation option [15]. Stand-alone or grid-connected photovoltaic ...David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić. "Valorization of non-balanced coal reserves in Serbia for underground coal gasification" in Thermal Science (2019). https://doi.org/10.2298/TSCI190725390P
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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A WebGIS Decision Support System for Management of Abandoned Mines
Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis. "A WebGIS Decision Support System for Management of Abandoned Mines" in Energies 7 no. 9 (2016): 567. https://doi.org/10.3390/en9070567
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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2024)
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Navigacija budućnosti: poslovni rizici i prilike u rudarskoj industriji
Sektor rudarstva i metalurgije se globalno suočava sa brzo evoluirajućim okruženjem u 2024. godini, koje karakteriše jedinstvena međusobna zavisnost rizika i prilika. Sektor je u središtu globalne energetske tranzicije, uz rastuću potražnju za kritičnim mineralnim sirovinama poput litijuma, nikla i bakra, koji su od suštinskog značaja za tehnologije obnovljive energije i električna vozila. Međutim, ova sve veća odgovornost donosi brojne izazove, uključujući pojačanu pažnju na ekološke, društvene i upravljačke (ESG) faktore, fizičke i tranzicione rizike uzrokovane klimatskim promenama, i ...Petar Marković, Dejan Stevanović, Mirjana Banković, Vuk Lazić. "Navigacija budućnosti: poslovni rizici i prilike u rudarskoj industriji" in XVI međunarodna konferencija OMC 2024, Beograd : Jugoslovenski komitet za površinsku eksploataciju (2024)
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Available technological procedures for capturing CO2 in the industrial and power generation sectors
Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac. "Available technological procedures for capturing CO2 in the industrial and power generation sectors" in 8th International Conference Mining and Environmental Protection, 22 – 25th September 2021, Serbia, Univerzitet u Beogradu, Rudarsko-geološki fakultet (2021)
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Hydrogeothermal potential of the Belgrade city area, the capital of Serbia-first assessment
Milenić Dejan, Vranješ Ana, Doroslovac Nenad. "Hydrogeothermal potential of the Belgrade city area, the capital of Serbia-first assessment" in Proceedings of the XIII World Renewable Energy Congress- WREC, London, United Kingdom (2014)
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An Efficient Class of Iterative Root-Finding Methods with Applications
Dejan Ćebić, Nebojša Ralević (2021)... i · 0.25 and α ≈ 3.9485...+ i · 0.3161... Example 5: (Plank’s radiation law problem) The mentioned problem is related to the density of energy in an isothermal blackbody [16], and it can be defined as follows Ω(δ) = 8πchδ−5 e ch δBT − 1 . For the specific choice of parameters T, h and c (B is the ...
... Symposium on Intelligent Systems and Informatics • September 16-18, 2021 • Subotica, Serbia 000109 related to the law of the population growth (see [15]). The derived test function is f2(x) = 1365− 1000ex − 300 x (ex − 1) with simple root α ≈ 0.05504622... and initial approximation x0 = 3. ...
... one has to find the maximum energy density of Ω(δ). The maximum is provided by the roots of function f(x5) = x 5 − 1 + e−x. The desired root is α ≈ 4.9651... and the initial value is x0 = 3. Tables I-V display the numerical calculations of the de- scribed eighth and fourteenth order methods applied ...Dejan Ćebić, Nebojša Ralević. "An Efficient Class of Iterative Root-Finding Methods with Applications" in 2021 IEEE 19th International Symposium on Intelligent Systems and Informatics (SISY), IEEE (2021). https://doi.org/10.1109/SISY52375.2021.9582495
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Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji
Dragan Ignjatović, Vladimir Pavlović (2024)Strategija upravljanja mineralnim i drugim geološkim resursima na održivim i holističkim osnovama, služi kao osnova za vladinu politiku vezanu za geološka istraživanja i eksploataciju mineralnih resursa u skladu sa njenim pravnim i regulativnim obavezama. Uspostavljanje Strategije obezbeđuje osnovu za dalji razvoj i ona se realizuje u relevantnim oblastima politike kako bi se postigli postavljeni ciljevi, pri čemu se resursi moraju dobijati i koristiti na održiv način. Strategija treba transparentno da istakne mogućnosti i izazove, stvori preduslove, razjasni uloge i ...... Geopolitics of the Energy Transition: Critical Materials. (2023). International Renewable Energy Agency (IRENA). Dostupno na: https://www.irena.org/Publications/2023/Jul/Geopolitics-of-the-Energy- Transition-Critical-Materials [5] Draft United Nation Resource Management System: Principles and Requiremens ...
... Abstract The strategy for managing mineral and other geological resources on sustainable and holistic foundations serves as the basis for government policy related to geological research and the exploitation of mineral resources, in accordance with its legal and regulatory obligations. The establishment ...
... further development, and it is implemented in relevant policy areas to achieve set goals, ensuring that resources are obtained and used in a sustainable way. The Strategy should transparently highlight opportunities and challenges, create preconditions, clarify roles, and identify synergies that ...Dragan Ignjatović, Vladimir Pavlović . "Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji" in XVI Međunarodna rudarska konferencija OMC 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
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Some models for determination of parameters of the soil oscillation law during blasting operations
Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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Quantitative analysis of syllable properties in Croatian, Serbian, Russian, and Ukrainian
Biljana Rujević, Marija Kaplar, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Jan Mačutek (2021)... distribution and the Dacey-Poisson distribution, respec- tively). We show that Zipf ’s law of brevity, according to which the more frequent words tend to be shorter, can be extended to syllables. We suggest a generali- zation of the Menzerath-Altmann law, a relation between word length and the mean syllable ...
... syllable length. �e generalized version of the law is valid for both word types and word tokens. Keywords: syllable, rank-frequency distribution, length, law of brevity, Menzerath-Altmann law, Slavic languages 1. Introduction �e syllable, being one of the basic linguistic units, is notoriously di�cult ...
... distribution and the Dacey-Poisson distribution, respec- tively). We show that Zipf’s law of brevity, according to which the more frequent words tend to be shorter, can be extended to syllables. We suggest a generali- zation of the Menzerath-Altmann law, a relation between word length and the mean syllable ...Biljana Rujević, Marija Kaplar, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Jan Mačutek. "Quantitative analysis of syllable properties in Croatian, Serbian, Russian, and Ukrainian" in Language and Text: Data, models, information and applications, John Benjamins Publishing Company (2021). https://doi.org/10.1075/cilt.356.04ruj
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Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia
Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović. "Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia" in Advancing Culture of Living with Landslides, Proceedings of 4th World Landslide Forum, Ljubljana 29 May-02 June 2017 3, Berlin : Springer Interantional (2017). https://doi.org/10.1007/978-3-319-53487-9_48
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Efekti potencijalnog korišćenja postrojenja za preradu otpadnih voda kao energetskih izvora u sistemima daljinskog grejanja u Srbiji
Системи даљинског грејања постоје у 57 градова и општина у Србији и доминантно користе фосилна горива. У овим урбаним срединама су изграђени, или се планира градња система за пречишћавање отпадних вода. У раду је размотрена (са еколошког и енергетског аспекта) могућност додатног, енергетског коришћења топлоте пречишћене воде у СДГ, применом топлотних пумпи. На примеру Шапца је извршено поређење постојећег СДГ са системом који би применом топлотних пумпи искористио енергетски потенцијал система за пречишћавање отпадних вода. Добијени индикатори су послужили ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević . "Efekti potencijalnog korišćenja postrojenja za preradu otpadnih voda kao energetskih izvora u sistemima daljinskog grejanja u Srbiji" in Stručno-naučna konferencija TOPS 2019, Poslovno udruženje toplana Srbije (2019)