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Упит dcterms_subject_txt: MICP process

479 items

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • Long-term planning methodology for improving wood biomass utilization

    Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković (2019)
    The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...
    Long-term planning methodology, Forest biomass, MINLP, Backcasting

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... obtain a regular data grid, the sam- pling was conducted at a 1s interval, and with a distance between the traverses of 1m. The traverses for this process were oriented in a north-south and east-west direction. The best results or, more accurately, those with the absence of linear anomalies were observed ...
    ... all the data during the acquisition was stored in the same fi le, which does not allow for the processing of individual profi les. To be able to process the individual traverses, the measurements were continued using the prin- ciple of “one traverse-one fi le”. The traverses were oriented along a ...
    ... the map and can lead to misinter- pretation (Figure 3.a.). To eliminate this anomaly, a low-pass linear moving average decorrugation fi ltering process was applied to the data in two steps (Urquhart, 1988). In the fi rst step, the data was fi ltered along the direction of the acquisition, and in ...

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... pit. The common element in all considerations is selection of parameters whose variations have the greatest negative impact on the combustion process, whether because of combustion problems, or impact on the power plant equipment, or environmental impact. Although each parameter has a dominant ...
    ... The sulphur content is low, as is iron content, while mercury is monitored only sporadically. [Stevanović et al., 2015]. Thus the homogenization process is logically directed towards homogenization of heating value, as the primary parameter. At the pits operated by Mibrag (Germany) the leading ...
    ... variations in certain parts of the deposit are much greater, meaning that the selected number of layers will not be sufficient for the homogenization process to be carried out. It then follows that for the contractually specified range, in deciding on the level of the pit (mine), for safety reasons that ...

  • Energetska bezbednost sektora prirodnog gasa Srbije

    Aleksandar Madžarević, Predrag Jovančić, Miroslav Crnogorac (2023)
    U prve dve decenije 21. veka obezbeđivanje sigurnosti snabdevanja prirodnim gasom domaćeg tržišta bio je jedan od prioriteta razvoja energetike Srbije. Istovremeno, aspekt sigurnog snabdevanja bio je neizostavni deo slagalice stvaranja energetske bezbednosti. Izražena uvozna zavisnost je dominantna karakteristika sektora prirodnog gasa, tačnije, Republika Srbija je snažno zavisna od ruskog gasa, sa više od 80% uvezenih količina gasa, a do pre dve godine snabdevala se isključivo kroz jednu interkonekciju. U radu se razmatra aktuelna situacija u sektoru prirodnog ...
    N-1, IDUPS, energetska bezbednost, sigurnost snabdevanja
    ... broja radova u međunarodno priznatim časopisima, učestvovao u izradi različitih studijai međunarodnih projekata. 36 International Congress on Process Industry Abstract Submission Form Note: Please, do fill the template in English. ABSTRACT Author/s Aleksandar Madžarević Predrag Jovančić ...
    ... aleksandar.madzarevicOrgf.bg.ac.rs (corresponding author only) predrag.jovancicO'rgf.bg.ac.rs miroslav.crnogorac(orgf.bg.ac.rs Conference topic Process technologies MG Energy Security of Serbian Natural Gas Sector Keywords (max. 5 words) Abstract In the first tvo decades of the 21st century ...
    ... about each enrolled at the Faculty of Mechanical Engineering, UB. He completed his author) undergraduate and graduate academic studies in the module Process Engineering and Environmental Protection in 2011. He finished his doctoral studies at the Faculty of Mining and Geology, UB, in the study program ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • 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 ...
    роторни багер, резни елементи, хабање, вибрације, потрошња електричне енергије

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... with library that enables usage of Moses in the JavaScript language. Loading multiple translation systems into the same node process is provided. This means the same process can hold multiple distinctly different translation models (e.g., Chinese to English in IT and English to French in medicine) ...
    ... correlates with the segment in the original text. The task is thus to establish the connection between originals and their translations. In this process, segments are paired that sometimes represent whole sentences and sometimes just their parts, depending on the complexity of the sentence or the ...
    ... a virtual machine. It uses the Linux operating system. GIZA is quite a demanding tool, and it therefore requires extra resources. Its execution process requires a larger amount of RAM, which in our case was 16GB. Corpus Preparation For our research we used five text collections, three of them ...

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

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... 2015; Yavuz et al., 2006). Measuring method of ultrasonic waves velocity propagation is based on the modelling of the wave propagation process. The process of induction and wave emission is repeated 1 University of Belgrade – Faculty of ...
    ... for each special direction. The next part of calculation process describes investigation of anisotropy coefficient for each special sample and each special direction, respectively. It should be emphasized that the whole calculation process is covered applying interval numbers. Degree of anisotropy ...
    ... Uncertainty of input parameters implies defining a boundaries above these data thereby increasing the flexibility and reliability of the computational process. Comparative analysis between these samples shows a highly difference of quantitative indicators of anisotropy. Isotropic samples are more uniform ...

  • Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers

    Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović (2024)
    This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...
    korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd
    ... to its short duration and ease, CBR, testing using a LWD can become widespread as an alterna- tive to the classic quality control method in the process of compaction or estimation of the substrate bear- ing capacity [5]. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 1, Januar ...
    ... pressure of 0.01 MN/m! for a plate diameter (d) of 300 mm was applied. The deformation modulus E,,-E,, was determined using the load-unload-load process according to the DIN 18134: 2012-04 standard [11]. Approximately 1 hour was required to prepare and perform one test. After performing SPLT and ...
    ... collecting the required data, the subgrade reaction modulus (K,) was calculated for each station using the pressure-settlement curve [12].In this process, certain items must be considered. Light-weight deflectometer The LWD is a portable device with a falling weight developed in Germany as an alternative ...

  • Non-Detonating Chemical Mixture for Non-Invasive Methods of Rock Breaking

    Lazar Kričak, Milanka Negovanović, Nikola Simić, Stefan Milanović (2024)
    Within the Innovation developed several different non-detonating chemical mixtures for non-invasive methods of rock breaking. Laboratory and polygon tests gave the satisfactory results and knowledge enough to start the practical experiments in the field. The basis of this innovation is a theoretical assumption that certain chemical mixtures release a large quantity of gases during combustion. If these gases are found in the enclosed space a growing pressure on the walls of the chamber in which combustion takes place will ...
    non-detonating, chemical mixture, rock breaking, borehole pressure

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... planning is an introductory activity for the design process. In the plan- ning phase, the key relations that have to be taken into account during the design phase are identified. The first activity in the mine ventilation planning and design process is the establishment of a basic or initial ventilation ...
    ... IVAN OBRADOVIĆ and RANKA STANKOVIĆ Faculty of Mining and Geology, University of Belgrade, Yugoslavia Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full ...
    ... ware and software that are at the disposition of mine engineers. Software packages for mine ventilation simulation are now playing a key role in the process of mine ventilation planning and design.7–10 In this paper, we propose a six-step approach to the solution of mine ventilation design problem, the ...

  • 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
    ... SASA dictionary. Section 2 describes some steps towards modernization of the dictionary-making process and the development of the digital version of SASA dictionary, starting with retro- digitization process, followed by several ideas about modernization of dictionary- making and the description of the ...
    ... primary goal to speed up the linear production process of the dictionary. This enabled the use of the lexical database for research purposes. After successful import of two volumes: the 1st and 19th into the database (Stanković et al., 2018), the process continued with another three volumes: 2nd, 18th ...
    ... monolingual descriptive dictionaries of the Serbian language. The approach was motivated by the need for modernization of the dictionary-making process for the dictionary of the Serbian Academy of Sciences and Arts (SASA), a large monolingual thesaurus of Serbian, as well as for the production of ...

  • Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)

    Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad (2023)
    Brachiopods, Middle Jurassic, Sphriganaria, shell microstructure, Ethiopian Province

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    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 ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... criteria AHP (analytic hierarchy process) method was used. In this way, the ranking data are used as input data to the fuzzy set, which is further analyzed in the fuzzy composition process. Fuzzy compositions represent a step in modeling using fuzzy set theory in which the process of integration and synthesis ...
    ... Analytical Hierarchy Process; Mc-Graw-Hill: New York, NY, USA, 1980. 61. Saaty, T.L. Decision making with the analytical hierarchy process. Int. J. Serv. Sci. 2008, 1, 83–98. 62. Saaty, T.L. Fundamentals of Decision Making and Priority Theory with the Analytic Hierarchy Process; RWS Publications: Pittsburgh ...
    ... K.; Mogi, G.; Kim, J.W. Decision support for prioritizing energy technologies against high oil prices: A fuzzy analytic hierarchy process approach. J. Loss Prev. Process. Indust. 2009, 22, 915–920. [CrossRef] 35. Criqui, P.; Mima, S. European climated energy security nexus: A model based scenario analysis ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...
    Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatori

  • Innovative solution for the pump impeller shaft sealing

    Batalović Veselin (2012)

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća