Претрага
185 items
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Optimizacija i planiranje površinskih kopova stohastičkim modelima
Dejan R. Stevanović (2015-05-29)Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.... Thermodynamical approach to the traveling salesman problem: An efficient simulation algorithm, Journal of Optimization Theory and Applications, vol. 45, str 41–51 232 Dagdelen, K, 1985, Optimum Multi-Period Open Pit Mine Production Scheduling by Lagrangian Parameteriyation, doktorska disertacija, Colorado ...
... modelima;Open pit mine optimization and planning with stochastic models Dejan R. Stevanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Optimizacija i planiranje površinskih kopova stohastičkim modelima;Open pit mine optimization and planning with stochastic ...
... hybrid type. It has stochastic (Monte Carlo method) and deterministic component and treats the problem of optimization of open pit boundaries. Keywords: open pit mine, planning, optimization, stochastic models, coal quality control, uncertainty. Scientific field: Mining Engineering ...Dejan R. Stevanović. "Optimizacija i planiranje površinskih kopova stohastičkim modelima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-05-29)
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An Approach to Efficient Processing of Multi-Word Units
Efficient processing of Multi-Word Units in the course of development of morphological MWU dictionaries is not easy to achieve, especially when languages with complex morphological structures are concerned, such as Serbian. Manual development of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word units. In addition to that, we developed a procedure aimed at making ...... function is the extraction of sub- sets of lemmas based on different criteria: lemmas’ beginning, their part of speech (PoS), inflectional class code, syntactic and/or semantic markers or a Boolean com- bination of these criteria. Figure 3 shows the table for manual production of a DELAC entry having ...
... 03:23:31 An Approach to Efficient Processing of Multi-Word Units Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] An Approach to Efficient Processing of Multi-Word Units | Cvetana Krstev, Ivan Obradović ...
... text, the Serbian translation of Voltaire’s Candide. The NLP community offered various approaches to lexical treatment of multi- word units (MWUs). Since 2003 the workshops on multi-word expressions are being regularly organized in the scope of major events — ACL, EACL, Coling or LREC — not to mention ...Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas. "An Approach to Efficient Processing of Multi-Word Units" in Computational Linguistics - Applications, Studies in Computational Intelligence 458 no. 458, Berlin Heidelberg : Springer-Verlag (2013): 109-129. https://doi.org/10.1007/978-3-642-34399-5_6
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Optimizacija i planiranje površinskih kopova stohastičkim modelima
Dejan R. Stevanović (2015-05-29)Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.... Thermodynamical approach to the traveling salesman problem: An efficient simulation algorithm, Journal of Optimization Theory and Applications, vol. 45, str 41–51 232 Dagdelen, K, 1985, Optimum Multi-Period Open Pit Mine Production Scheduling by Lagrangian Parameteriyation, doktorska disertacija, Colorado ...
... modelima;Open pit mine optimization and planning with stochastic models Dejan R. Stevanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Optimizacija i planiranje površinskih kopova stohastičkim modelima;Open pit mine optimization and planning with stochastic ...
... hybrid type. It has stochastic (Monte Carlo method) and deterministic component and treats the problem of optimization of open pit boundaries. Keywords: open pit mine, planning, optimization, stochastic models, coal quality control, uncertainty. Scientific field: Mining Engineering ...Dejan R. Stevanović. "Optimizacija i planiranje površinskih kopova stohastičkim modelima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-05-29)
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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... assets to determine maximum fleet size. A case study history of Glamis Gold's Operation. Bazzazi, A. A., Osanloo, M., Karimi, B., 2011, A new fuzzy multi criteria decision making model for open pit mines equipment selection. Asia-Pacific Journal of Operational Research, 28 (03), 279-300. Bell, F. G., Donnelly ...
... of Geochemical exploration, 52 (1-2), 5-23. 203 Samanta, B., Sarkar, B., Mukherjee, S., 2002, Selection of opencast mining equipment by a multi-criteria decision-making process. Mining Technology, 111 (2), 136-142. Schaffer, M., 1993, Continuous Mining of Strong Rock with the Voest-Alpine Surface ...
... institut. Soltanmohammadi, H., Osanloo, M., Sami, A., Malekzadeh, S. B., 2010, Selection of practical bench height in open pit mining using a multi-criteria decision making solution. Journal of Geology and Mining Research, 2 (3), 48-59. Stevanović, D., 2015, Optimizacija i planiranje površinskih kopova ...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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Production of morphological dictionaries of multi-word units using a multipurpose tool
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion... lemmas based on different criteria: lemmas’ beginning, their part of 2http://hlt.rgf.bg.ac.rs/VebRana Fig. 4. The DELAC entry management form of Leximir speech (PoS), inflectional class code, syntactic and/or semantic markers or a Boolean combinations of these criteria. Figure 4 shows the table ...
... morphological dictionaries of multi-word units using a multipurpose tool Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Production of morphological dictionaries of multi-word units using a multipurpose ...
... Candide. Some multi-word compounds composed of two or more contiguous graphical words that show some degree of non- compositionality and have constant references can be de- scribed using a similar approach. The NLP community offered various approaches to lexical treatment of multi-word units (MWUs) ...Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas. "Production of morphological dictionaries of multi-word units using a multipurpose tool" in Proceedings of the Computational Linguistics-Applications Conference, October 2011, Jachranka, Poland, Jachranka, Poland : PTI - Polish Information Processing Society (2011)
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A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice
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 ...... I. S. Lowndes and B. Denby, Genetic algorithm optimization of large UK coal mine ventilation network, Proc. 8th US Mine Ventilation Symp., 1998, 625-632. 13. Z. Y. Yang, I. S. Lowndes and B. Denby, Application of genetic algorithms to the optimization of large mine ventilation networks, Trans. Instn ...
... composed from several integrated software packages: ResNet, SimVent and VENTEX (Fig. 3). These packages integrate both well known nu- merical optimization and various artificial intelligence methods, which allow for an M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed ...
... and that alternative solutions are needed. To that end, a genetic algorithm was used. Binary sequences for two variables were created for the optimization of the ventilation network by means of a genetic algorithm. The variable representing the pressure of the booster fan varies in wide limits of ...Nikola Lilić, Ivan Obradović, Ranka Stanković. "A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice" in Mineral Resources Engineering 11 no. 4, Imperial College Press (2002): 361-382. https://doi.org/10.1142/S0950609802001014
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... and sparse multi-graph regularized extreme learning 10. Wang, C.; Deng, C.; Wang, S. Imbalance-XGBoost: Leveraging weighted and focal losses for binary label-imbalanced classification with XGBoost. Pattern Recognit 11. Olson, R.S.; Moore, J.H. TPOT: A Tree-based Pipeline Optimization Tool for ...
... processed. The efficiency of their operation directly affects the amount of oil extracted and overall operational costs, making their analysis and optimization a key aspect of the industrial process.Furthermore, we will discuss dynamograms in deep well pump systems. Dynamograms are essential for monitoring ...
... of issues in pump operation. Problems in pump performance are defined and classified, and their resolution allows for multiple benefits and optimization of the system's operation. The ultimate goal in managing the operation of a downhole pump is to maximize volumetric efficiency, that is, to ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations
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. ...... Essa et al. (2021), who developed a method for the assessment of fault parameters from the gravity anomaly data using the global particle swarm optimization. Some authors (Toushmalani, 2010, Wahyudi et al., 2016, Wada et al., 2017, Sumintadireja et al., 2018) prefer to utilize gravity horizontal ...
... REFERENCES Essa K.S., Gćraud Y., Diraison M., 2021: Fault parameters assessment from the gravity data profiles applying the global particle swarm optimization. Journal of Petroleum Science and Engineering, 207: 109129 Kusumoto S., 2017: Eigenvector of gravity gradient tensor for estimating fault dips ...Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković. "Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024)
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Concept od predictive hydrodynamic calculations: An overview of the case studies from Serbia
Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Vesna Ristić Vakanjac, Marina Čokorilo Ilić (2019)groundwater management, hydrodynamic model, multiple-criteria decision making, open cast mine, groundwater source.0Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Vesna Ristić Vakanjac, Marina Čokorilo Ilić. "Concept od predictive hydrodynamic calculations: An overview of the case studies from Serbia" in National Conference with international participation “Geosciences 2019”, Bulgaria, 2019, Sofia : Bulgarian Geological Society (2019)
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Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala
Miodrag Čelebić (2024)Izbor optimalne mehanizacije u diskontinualnom sistemu transporta je jedna od najvažnijih odluka koju treba donijeti prilikom projektovanja površinskih kopova. Pri izboru optimalne mehanizacije, uticaj ima veliki broj faktora, kako prirodnih – geoloških i ekoloških, tako i tehničkih, ekonomskih i socijanih. Neki od njih se mogu izraziti numerički, u određenim mijernim jedinicama, a neki opisno, lingvističkim varijablama, shodno uslovima koji vladaju na rudnim ležištima, a koje karakterišu visok stepen neizvjesnosti i neodređenosti kako prilikom istraživanja, tako i tokom procesa eksploatacije ...izbor mehanizacije, tehnologija eksploatacije, diskontinualani sistem, ekspertsko odlučivanje, lingvističke varijable, MCDM, FAHPMiodrag Čelebić. Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala, Beograd : [M. Čelebić], 2024
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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)... available at: www.dr.rgf.bg.ac.rs XIV OPTIMIZACIJA VODOSNABDEVANJA PODZEMNIM VODAMA U SRBIJI OPTIMIZATION OF GROUNDWATER SUPPLY IN SERBIA Dušan 1, Zoran 1, Petar 1, Vesna Vakanjac1, Bojan 1, Saša 1, Dragoljub 1 1 Departman za hidrogeologiju, R ...
... monitoring, legislation XIV SRPSKI HIDROGEOLOSKI SIMPOZIJUM sa medunarodnim uéeScem OPTIMIZACIJA VODOSNABDEVANJA PODZEMNIM VODAMA U SRBIJI OPTIMIZATION OF GROUNDWATER SUPPLY IN SERBIA Dugan Poloméic’, Zoran Stevanovié', Petar Dokmanovié', Vesna Ristié Vakanjac’, Bojan Hajdin’, SaSa Milanovic', ...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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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
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, ANFISMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić. "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" in Energies, MDPI AG (2023). https://doi.org/10.3390/en16072958
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Multivarijabilni modeli upravljanja u rudarstvu
Marjan M. Hudej (2014-02-03)osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...... and practical applicability of the suggested approach. Keywords: MINING ENGINEERING, DECISION MAKING, MANAGEMENT, MODEL, MULTI-VARIABLE, MULTI-ATTRIBUTIVE, MULTI-CRITERIA Scientific area: MINING ENGINEERING Narrow scientific area: SYSTEM ENGINEERING UDC: 004:005.1/.311/.7:007.528.28 ...
... Approach to Complex Multi-Criteria Decisions, Computational Intelligence in Complex Decision Systems, Atlantis Press, 2010, 147-182. 48. Lashgari, A., Yazdani–Chamzini A., Majid Fouladgar M., Kazimieras Z.E., Shahriar S., Abbate n., Equipment selection using fuzzy multi criteria decision making model: ...
... 32. Ehrgott M., Multicriteria Optimization, Springer Berlin-Heidelberg, 2nd edition, 2005, 336. 33. Eshenauer, H., Koski, J. & Osyczka, A. , Multicriteria Design Optimization, Springer-Verlag, 1990, 482. 34. Figueira, J., Greco, S., Ehrgott, M., Multiple Criteria Decision Analysis: State of the ...Marjan M. Hudej. "Multivarijabilni modeli upravljanja u rudarstvu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-02-03)
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Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept
Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov. " Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept" in Engineering Geology , Elsevier (2019). https://doi.org/10.1016/j.enggeo.2019.05.007
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Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike
... precedence relationships and CAD/CAM simulation in time-based optimization of process planning. Applied Engineering Letters, 2 (4), p. 130-138. [3] Lukić, D., Milošević, M., Antić, A., Borojević, S., Ficko. M. (2017). Multi- criteria selection of manufacturing processes in the conceptual process ...
... factors that affect the optimization from several aspects. The idea of this paper is to show the advantage of modern systems on the example of large - scale production, the importance of the preparation of production for the total time and production costs. Keywords: Optimization, CNC, milling machine ...
... nosača, aditivna tehnologija. Abstract: This paper presents the results of topology optimization study of support using SOLIDWORKS software. Accent of study is placed on description of topology optimization of support, in other words, mass reduction with equally Von Misses stress distribution ...Мирослав Црногорац, Душан Даниловић, Лола Томић. "Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike" in IX Naučno stručni skup Preduzetništvo, inženjerstvo i menadžment Zrenjanin, 24.10.2020. god., Visoka tehnička škola strukovnih studija u Zrenjaninu (2020)
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Značaj izvodjenja Proktorovog opita na komunalnom otpadu
Komunalni otpad predstavlja jedan od ključnih problema današnjice. U Srbiji je najčešći vid odlaganja otpada na komunalne deponije i zbog toga je bitno ispravno i sigurno ga skladištiti. Zbijanje komunalnog otpada predstavlja jednu od osnovnih komponenti procesa odlaganja. Kako bi se što bolje predvidelo ponašanje komunalnog otpada neophodno je pre zbijanja na terenu laboratorijski odrediti maksimalnu suvu zapreminsku težinu i optimalnu vlažnost. U dosadašnjoj praksi u svetu za to se koristi standardizovan Proktorov opit. U radu će biti prikazani ...... Ministarstva prosvete, nauke i tehnološkog razvoja Republike Srbije. LITERATURA: Cox, J. T., Hanson, J., Yesiller, N., Clarin, J. & Noce, D. E.: Optimization of Compaction Procedures and Waste Placement Operations at MSW Landfills, Global Waste Management Symposium, Orlando, Florida. 2014. Hanson, ...Jovana Janković, Dragoslav Rakić, Tina Đurić, Irena Basarić Ikodinović, Laslo Čaki. "Značaj izvodjenja Proktorovog opita na komunalnom otpadu" in Zbornik radova osmog naučno-stručnog međunarodnog savetovanja - Geotehnički aspekti građevinarstva, Savez građevinskih inženjera Srbije (2019)
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Design of a sucker rod pumping system
Ana Ponoćko (2024)For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...... in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element ofthe system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface ...
... for analyzing the dynamics of sucker rods and wave effects in pumping systems. 34 — QROD - Utilizes the wave equation for the analysis and optimization of sucker rod pumping systems, focusing on dynamic responses and system performance. — PROSPER - This software uses the wave equation to simulate ...
... any fluid level or pump intake pressure you specify [13]. 5.2 Prosper Prosper offers powerful sensitivity calculation features that enable the optimization of existing designs and the assessment of the impact of future changes in system parameters. Once a system model is calibrated with real fluid ...Ana Ponoćko. Design of a sucker rod pumping system, 2024
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Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry
Multiple criteria decision making (MCDM) is a supporting tool which is widely spread in different areas of science and industry. Many researchers have confirmed that MCDM methods can be useful for selecting the best solution in many different problems. In this paper, two novel methods are presented and applied on existing decision-making processes in the mining industry. The first method is multiple criteria ranking by alternative trace (MCRAT) and the second is ranking alternatives by perimeter similarity (RAPS). These ...Katarina Urošević, Zoran Gligorić, Igor MIljanović, Čedomir Beljić, Miloš Gligorić. "Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry" in Mathematics, MDPI (Basel, Switzerland) (2021). https://doi.org/10.3390/math9161980
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Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)
A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...... authors have recently focused on this subject from different perspectives: the hydrodynamic aspect of hydrogeological research [1-3], water source optimization and sustainable development of water supply systems [4-6], drinking water supply [7], different types of factors and processes that influence ...
... doi.org/10.5593/sgem2011/s02.136 7. Polomčić, D., Stevanović, Z., Dokmanović, P., Ristić-Vakanjac, V., Hajdin, D., Milanović, S., Bajić, D., Optimization of Groundwater Supply in Serbia, Proceedings of http://dx.doi.org/10.1007/s10040-013-1025-9 http://dx.doi.org/10.1007/s11269-011-9932-9 http://dx ...
... regime of groundwater flow, as well as the goal of the task at hand, were of primary importance in selecting the mathematical model concept. A multi-layered model was developed. The hydrodynamic model represented the municipal groundwater source of Kikinda (the source at Šumice and the Jezero ...Dušan Polomčić, Dragoljub Bajić, Jelena Zarić. "Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)" in Journal of Sustainable Development of Energy, Water and Environment Systems (2015). https://doi.org/10.13044/j.sdewes.2015.03.0017
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Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians
Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)... cated by subsequent normal faults in outcrops and map scale (structure 8 in Fig. 5 and structure 14 in Fig. 7). 3.2. Multi-geometry extension and strike-slip Superposition criteria and truncation of the upper Oligocene – Miocene basins indicate that the Supragetic thrusting is followed in time by ...
... distributing the strain along differently oriented structures. Available superposition timing criteria are not fully diagnostic. 3.3. Top-E thrusting of the Upper Getic sub-unit Superposition criteria indicate that the youngest deformation type is associated with a large number of reverse faults ...
... (including calcite slickenfibres, grooves and other brittle lineations), Riedel shears and brittle shear bands, by taking into account confidence criteria and quality ranks (e.g., Angelier, 1994; Doblas, 1998; Sperner and Zweigel, 2010). Shear bands, sheared quartz aggregates and, less frequent, consistent ...Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer. "Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians" in Global and Planetary Change, Elsevier BV (2020). https://doi.org/10.1016/j.gloplacha.2020.103361