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Упит dcterms_subject_txt:production control

295 items

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... section Five offers the main features of the newly developed terminological resource, Termi. The paper end with some concluding remarks. 2. FLOW CONTROL The architecture of the MLES system is based on three main components. The first component is dedicated to corpus processing and alignment with ...

  • Integrisano okruženje za pripremu paralelizovanog korpusa

    Ivan Obradović, Ranka Stanković, Miloš Utvić (2007)
    Razvoj paralelizovanih korpusa zahteva pripremu paralelnih tekstova za njihovu integraciju u paralelizovani korpus. Reč je o jednom kompleksnom zadatku koji se može rešiti na različite načine, i koji mora da se odvija u nekoliko koraka. U ovom radu najpre je iznet postupak pripreme paralelnih tekstova za paralelizovani korpus koji se koristi u Grupi za jezičke tehnologije Univerziteta u Beogradu. Potom je dat kratak pregled programa (XAlign, Concordancier, WS4LR), odnosno softverskih alata koji se pri tome koriste. Nedostatak udobnog okruženja ...
    ... programming language. Among other things, ACIDE provides a graphical user interface (GUI) for alignment and visualization of aligned texts, their control and correction, as well as generation of files in TMX format. ACIDE also enables the decomposition of TMX files into files for particular languages ...

  • Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

    Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić (2019)
    Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology
    ... surrounding rocks. Therefore it was difficult to reconstruct primary strati- graphical relationships ofthese deposits without bios- tratigraphic control. Biostratigraphy of the Grivska Formation can be based only on microfauna; any macrofossils are unknown here. SUDAR [1986, 1996) distinguished ...

  • The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system

    Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)
    The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...
    микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми
    ... Samples were weighed into test tubes, which were immediately sealed (glass stoppers) and put into a thermostated water bath with temperature control up to 0.2 *C. In the thermostated bath, the mixtures were stirred with small magnetic stirrers to ensure complete mixing of the components at ...

  • A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers

    Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić (2019)
    Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...
    Efikasnost, Fazi zaključivanje, Prikupljanje podataka, Buldozer

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • Примена CNC машина при обради мермера

    Ненад Остојић (2024)
    Мермер је стена настала метаморфизмом седиментних карбонатних стена, најчешће кречњака или доломита. Мермер се углавном састоји од калцита,кречњака, серпентина и доломита. Његове главне компоненте су углавном калцијум карбонат, који чини више од 50 посто, и други магнезијум карбонат, калцијум оксид, манган оксид и силицијум диоксид, итд. Фазе обраде мермера су: примарно резање мермерних блокова у плоче, површинска обрада мермерних плоча, секундарно резање мермерних плоча, терцијарна обрада (ако је потребно). CNC машина је електро-механички уређај који управља алатима, користећи програмирање путем ...
    мермер, површинска експлоатација, архитектонско-грађевински камен, обрада мермера, CNC машине
    ... IyTeM pauyHapa. CNC wmammHe cy BeOMa INIpermM3Hc. CaM Ha3HB „CNC“Je cKpaheHMma 3a „PauyHapcKO HyMepMHMuKO ypaBJbaĐe“, cHTM. Compufer Numeric Control.. CNC amuHe 3a MepMep cy ayToOMaTH3OBaHec MaImuHHe 3a pe3abbe HJIH npyru oOmak oOpajne monyT rpaBHpaba. HneanHe cy 3a HpenuH3Hy MaIIHHCKy OOpa/jly ...
    ... MHHHMyM, OJUIHKy]y CC BCJIHKOM IIpermaHomihy oOpaje. CaM Ha3HB „CNC“ je ckpaheHuta 3a "PauyHapcko HyMepHuko yripaBJbabe", cHr. Computfer Numeric Control. IIpencraBJba JenHy OJL BE CTaHJapJIHe MeTOJIE a TO Cy: TeXHOJIOTHJa 3D mramama M Mojnenmaipame Qy3uje ranoxema (Fused deposition modeling FDM), ...
    ... oOpany [5]. • ugrau OymeHe TpaKe, • MarHeTHH uHTau TpaKe H • pauyHap ca npunanajyhHM HHTep(bejcoM. 82 VrpapBjbauka jemMHHIa (eHr. Machine Control Unit- MCU) mnpenncraBjba cpme CNC cucrewma. Kopucrua ce 3a: • uHTaMe KOJUIpaHHX HHCTPpyKIuja, • eKOJUIpaMbec KOJUHpaHHX HHCTPpyKIHJja, • H3BODeMe ...

  • On the compatibility of lexical resources for NooJ

    Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović (2012)
    Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.
    ... suggest the replacement of the textual form of metadata by a more formal form in XML format, with a defined schema which would enable a stricter control and tighter relation between the *.def file and the dictionary. Given that Data Categories are standardized (ISO 2009) it would be good if some ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... two working languages by adjusting parameters in the “Preferences” manu of WS4LR. Besides, WS4LR provides further possibilities for a user to control the query formulation, since in addition to expansion it also offers a narrowing of ...
    ... with harmonizing various heterogeneous lexical resources. Subsequently, many new features were added, particularly those that helped in the production and exploration of aligned texts on the basis of the incorporated lexical resources [9]. The new tool WS4QE (shortened for Work Station for ...
    ... Maurice Gross. The format of a DELAS-type dictionary basically consist of simple word lemmas accompanied with inflectional class codes which enable production of a DELAF-type dictionary which consists of all inflectional forms with their grammatical information. In Unitex environment one finite-state ...

  • Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology

    Mihailo Škorić, Mauro Dragoni (2019)
    This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...
    document classification, MeSH, ontology, information extraction
    ... documents using identifiers Two processing procedures were applied to the documents subject to clas- sification, resulting in two test sets. The control method was to replace the identifiers with their class, a more general hierarchical designation. The ex- perimental method also considered the length ...

  • 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
    ... of forming separate fi les, it is recommended that all data be stored in one. In order to be able to individually process the traverses, and to control the data, it is necessary to separate the fi les by using a software tool during the acquisitions. Some companies whose gradiometers are spe- cialised ...

  • OntoLex Publication Made Easy: A Dataset of Verbal Aspectual Pairs for Bosnian, Croatian and Serbian

    Ranka Stanković, Maxim Ionov, Medina Bajtarević, Lorena Ninčević (2024)
    Ovaj rad predstavlja novi jezički resurs za pretraživanje i istraživanje verbalnih aspektnih parova u BCS (bosanskom, hrvatskom i srpskom), kreiran korišćenjem principa Lingvističkih Povezanih Otvorenih Podataka (LLOD). Pošto ne postoji resurs koji bi pomogao učenicima bosanskog, hrvatskog i srpskog kao stranih jezika da prepoznaju aspekt glagola ili njegove parove, kreirali smo novi resurs koji će korisnicima pružiti informacije o aspektu, kao i link ka aspektnim parovima glagola. Ovaj resurs takođe sadrži spoljne linkove ka monolingvalnim rečnicima, Wordnetu i BabelNetu. ...
    aspekt glagola, lingvistički otvoreni podaci, BCS

  • Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study

    Ksenija Micić, Miloš Marjanović, Biljana Abolmasov (2024)
    Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...
    tečenje drobine, Flow-R, procena podložnosti, empirijski model

  • Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy

    Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)
    anizik, ladin, karbonati, litostratigrafija, biostratigrafija, konodonti, radiolarije, dijageneza
    ... Anisian structural highs, which were surrounded by the Bu- chenstein basin (Maurer 2000; Emmerich et al. 2005). "There was a strong biological control on reef evolution since microbial carbonates were dominant while frame- lowing the Permian- 'Triassic biological crisis (Flagel 1982, 2002; Senow- ...
    ... paleogeographic positions where the subsi- dence rate, local and regional tectonics, sediment pro- duction, or distance form volcanic centers were control- ling the growth of these platforms (Maurer 2000). The rest of this section describes some well-known examples to illustrate this point. In ...
    ... 2011). 'There has been a considerable amount of scientific iterature published on the geology of the Middle Trias- 1 ShellExploration and Production Company, 150 N. Dairy Ashford Rd, Houston, Texas 77041, U.S.A. E-mail: zsolt.nagy(o'shell.com. 2 | Department of Paleontology, Faculty of Mining ...

  • A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach

    Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependability

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... predicting ground vibration caused by rock blasting in surface, Journal of Vibration and Control 0(0) 1–16. DOI: 10.1177/1077546312437002, 2012. 24. Singh, T.N., Singh, V., An intelligent approach to predict and control ground vibration in mines, Geotechnical and Geological Engineering 23(3), 2005, 249-262 ...
    ... Man-Machine Studies, 7(1), 1975, 1-13. 122. Lee, C.-C., Fuzzy logic in control systems: fuzzy logic controller - part1, IEEE Transactions on Systems, Man, and Cybernetics, 20(2), 1990, 404-418. 123. Lee, C.-C., Fuzzy logic in control systems: fuzzy logic controller - part2, IEEE Transactions on Systems ...
    ... skupova Teoriju fazi skupova uveo je 1965. godine Lotfi A. Zadeh [107] u svom radu Fuzzy sets (Fazi skupovi) objavljenom u Časopisu Information and Control (Informacija i kontrola), gde je prvi put uveo pojam fuzzy (rasplinut, nejasan, neodređen). Zadeh u radu navodi ″ Da bi se izborili sa veoma složenim ...

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... predicting ground vibration caused by rock blasting in surface, Journal of Vibration and Control 0(0) 1–16. DOI: 10.1177/1077546312437002, 2012. 24. Singh, T.N., Singh, V., An intelligent approach to predict and control ground vibration in mines, Geotechnical and Geological Engineering 23(3), 2005, 249-262 ...
    ... Man-Machine Studies, 7(1), 1975, 1-13. 122. Lee, C.-C., Fuzzy logic in control systems: fuzzy logic controller - part1, IEEE Transactions on Systems, Man, and Cybernetics, 20(2), 1990, 404-418. 123. Lee, C.-C., Fuzzy logic in control systems: fuzzy logic controller - part2, IEEE Transactions on Systems ...
    ... skupova Teoriju fazi skupova uveo je 1965. godine Lotfi A. Zadeh [107] u svom radu Fuzzy sets (Fazi skupovi) objavljenom u Časopisu Information and Control (Informacija i kontrola), gde je prvi put uveo pojam fuzzy (rasplinut, nejasan, neodređen). Zadeh u radu navodi ″ Da bi se izborili sa veoma složenim ...

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... (Herzegovina, Montenegro) and for the first-time successful results were achieved in such porous media as karst. Technical applications for the control and regulation of karst aquifer through the construction of galleries, batteries of wells, and groundwater rTeservoirs (storage) represented an ...
    ... the Centre for karst hydrogeology in Serbia, several successful projects were designed and implemented in Serbia with technical applications for control and engineering regulation of karst aquifer through the 15 CKH Grupa učesnika Međunarodne IAH konferencije KARST 2005 ispred spomenika Jovanu ...
    ... Basin Management Plans Capacity Building in Woater Sector River Basin Management Plan for Sava River in B&H (Hydrogeological part) Monitoring, control, and protection of the regional water supply source “Bolje sestre” for Montenegro Coast o Tracer tests with Na-fluoresceine oh the Orah collapse ...

  • Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)

    Dušan Polomčić, Dragoljub Bajić, Jelena Zarić (2015)
    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 ...
    Water supply, Aquifer, Flow, Groundwater regime, Numerical modeling, Particle tracking
    ... positions. The discharge rates of the production wells of the other groundwater sources in the area were specified based on available technical reports [26], as constant values throughout the period. These included the MSK groundwater source, operating two production wells with a total capacity of 54 ...
    ... 54 l/s; the TM groundwater source, using a single production well with a discharge rate of 35 l/s; and the LŽT - Kikinda groundwater source, which operated two production wells with a total capacity of 50 l/s. Effective infiltration. In the overall groundwater balance, for the reasons stated ...
    ... Issue 3, pp 217-229 218 Nowadays, water supply is a highly complex and significant issue in every society. It is of vital importance to control and monitor the operation of each water source. Unfortunately, there are many problems. Even when the required legislation is in place, it is sometimes ...