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Упит dcterms_subject_txt:Monitoring Network

255 items

  • Hidrodinamička analiza procesa starenja bunara sa horzontalnim drenovima na beogradskom izvorištu podzemnih voda

    Đorđije M. Božović (2023)
    Predmet istraživanja doktorske disertacije su bunari sa horizontalnim drenovima beogradskog izvorišta podzemnih voda, drugog najvećeg izvorišta ovog tipa na svetu, čiji je režim rada opterećen procesima intenzivnog starenja prisutnog od samog početka formiranja izvorišta, početkom 1950‒ih godina. Istraživanja sprovedena u okviru izrade disertacije su imala za cilj definisanje nove metodologije izučavanja procesa mehaničkog i biohemijskog kolmiranja drenova izradom detaljnih 3D numeričkih hidrodinamičkih modela, upotrebom postojećih, dostupnih i široko rasprostranjenih računarskih programa. Istraživanja su realizovana simulacijom ostvarenog režima podzemnih voda ...
    modeliranje podzemnih voda, hidrauličke karakteristike drenova, koeficijent propusnosti drenova, prifilterska zona drena, hidraulički otpori na drenovima, kolmiranje drenova, ulazne brzine podzemnih voda, MODFLOW, CLN Package
    ... 2015). 3.2.6 Upotreba MODFLOW‒USG koda i Connected Linear Network (CLN) numeričkog paketa u savremenoj simulaciji bunara sa horizontalnim drenovima U okviru MODFLOW‒USG verzije programa razvijen je i implementiran Connected Linear Network Process paket (CLN) sa ciljem simulacije linijskih pojava ...
    ... .......................................................................................... 42 3.2.6 Upotreba MODFLOW‒USG koda i Connected Linear Network (CLN) numeričkog paketa u savremenoj simulaciji bunara sa horizontalnim drenovima ......................................... 43 4 METODOLOGIJA N ...
    ... (modula) čijom upotrebom se mogu simulirati složeni vodozahvatni objekti i uslovi kretanja podzemnih voda. Jedan od takvih paketa je i Connected Linear Network Process Package (CLN). 3.1.3 Zaključak primenjenih metoda i ostvarenih rezultata dosadašnjih hidrodinamičkih istraživanja procesa starenja bunara ...

  • 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
    ... for improvement of the trained model, e.g. with the introduction of new features, by adding more samples, or using other state-of-the-art neural network architectures. Another future step is the model’s evaluation on a control dataset – extraction and ranking performance is going to be tested by more ...

  • Енергетска безбедност Европске уније у светлу актуелне енергетске транзиције

    Бобан Павловић, Дејан Ивезић (2021)
    Енергетска стратегија Европске уније, која од 2015. године обухвата и циљеве у области климатских промена, тежи изградњи „енергетске уније” која потрошачима из ЕУ даје сигурну, приступачну, чисту и одрживу енергију. Енергетска политика ЕУ поставља пред себе амбициозне циљеве у погледу коришћења обновљивих извора – учешће од 32% до 2030. године. Овако опсежну и динамичну енергетску транзицију у Европи усложњава хетерогеност националних енергетских система у погледу структуре енергетског микса, нивоа увозне зависности, као и нивоа технолошког, друштвеног и економског ...
    енергетска безбедност, Европска унија, енергетски показатељи, природни гас, обновљиви извори енергије
    ... title=Energy_statistics_- _an_overview&oldid=492784#Final_energy_consumption. 22. JRC, Joint Research Centre, Improvements in the EU gas transmission network between 2009 and 2014, European Commission, 2015, https://core.ac.uk/download/pdf/38631659.pdf?repositoryId=961. 23. Sönnichsen, N., Number of ...

  • Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation

    Maja Franković, Nevenka Novaković, Vesna Matović (2015)
    The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...
    Krečnjak, mapiranje, Indeks raspadanja, brzina raspadanja, progresija
    ... Viles H (eds) Understanding and managing stone decay, Proceeding of the international conference “Stone weathering and atmospheric pollution network (SWAPNET)”. Charles university, The Karolinum press, Prague, pp 1156 Environ Earth Sci (2015) 73:6181–6193 Fitzner B, Heinrichs K, Kownatzki ...
    ... of mechanism of decay in specific microenvironmental con- ditions, as well as to evaluate applicability of adopted Fitzner's methodology to monitoring monument's state of conservation. Historical backgound The Dark Gate is situated on the Belgrade fortress, as a part of the same-named bastion ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... more and more cities in monitoring the quality of the environment, in addition to monitoring the quality of air and water, implement soil quality monitoring, or renew and expand the existing network of measuring points. In 2008, as well as Belgrade and Novi Sad, monitoring was performed in Kragujevac ...
    ... they are also called “micro-pollutants” (Calvo-Flores et al. 2018). As a part of the projecet NORMAN – “Network of reference laboratories, research centres and related organisations. for monitoring: of emerging environmental substances” (www.norman-network.net) a list of the currently most frequently ...
    ... organizations and institutions. Those are: • the main network of meteorological stations and main network of urban meteorological stations, • localnetwork of urban stations for measuring concentrations of main pollutants and local network of urban stations for measuring concentrations of specific ...

  • State and perspective of individual household heating in Serbia: A survey-based study

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...
    Domaćinstva, Individualni sistemi grejanja, Korišćenje energije, Stavovi potrošača, Anketa, Srbija

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... the following were taken into ac- count: the “zero” condition of the noise values at the measuring point (Within the national environmental monitoring network) in the Čantavir settlement; Environmental Noise Di- rective (2002/49/EC) [48]; Law on Environmental Noise Protection (2012) [55]; Regulation ...
    ... mortality risk at wind farms. Biol. Conserv. 2017, 215, 116–122. 28. Parisé, J.; Walker, T.R. Industrial wind turbine post-construction bird and bat monitoring: A policy framework for Canada. J. Environ. Manage. 2017, 201, 252–259. 29. Josimović, B. Implementation of Environmental Management System in ...

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... Technological Development of the Republic of Serbia, Project ON-176015 (NDJ, MS, DJ). The cooperation Leoben-Belgrade was sup- ported by the CEEPUS Network CIII-RO-0038 Earth-Science Studies in Central and South-Eastern Europe. The research work of N. Bragin was supported by Russian Governmental ...

  • The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis

    Ljiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua (2021)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Просторни положај лежишта угља Ђурђевик: геофизичко-геолошки модел

    Синиша Арсеновић (2019)
    Лежиште угља Ђурђевик представља источни део Бановићког угљеног басена и припада северној страни босанске офиолитске зоне унутрашњих Динарида у чији састав улазе стене палеозојске, мезозојске и кенозојске старости. Језерска доњомиоценска угљоносна серија изграђена је од лапоровито-глиновитих седимената са једним слојем мрког угља. Дебљина угљеног слоја креће се у интервалу од 5 до 25 m са генералним правцем пружања СЗ - ЈИ и падом према ЈЗ. У зони обухваћеноj геофизичким истраживањима изражена je пострудна тектоника у виду раседа мањег и ...
    рефлективна сеизмика, 3Д геофизичко-геолошки модел, угаљ, синтетички модел, моделирање
    ... series and the overlying and underlying sediments, the acquisition system has been successfully simplified. The profiles were placed in a dense network so that, based on the interpretation of the 2D projection of the coal series in correlation with the available data of other exploration-exploitation ...

  • Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... Hierarchy Process. Procedia Comput. Sci. 2015, 72, 434–445. [CrossRef] 21. Kolak, I.O.; Feyzioglu, O.; Noyan, N. Bi-level multi-objective traffic network optimisation with sustainability perspective. Expert Syst. Appl. 2018, 104, 294–306. [CrossRef] 22. Sitorus, F.; Ciliers, J.J.; Brito-Parada, P.R ...

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција

  • Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material

    Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)
    Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...
    Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, Pyrophyllite

  • 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 ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... specifically with 28 a squirrel-cage rotor. They typically operate at a voltage of 380 V with three phases and 50 Hz, derived from a high-voltage network of 10 kV. The rotational speed is usually less than the synchronous speed of 1200 RPM (or 1000 RPM at 50 Hz). Electric motors are very suitable ...

  • Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova

    Zoran M. Štirbanović (2015-07-01)
    Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...
    rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina
    ... Applications 37, 2010, pp. 610–617. 22. B. S. Ahna, S. S. Chob, C. Y. Kimc, The integrated methodology of rough set theory and artificial neural network for business failure prediction, Expert Systems with Applications 18, 2000, pp. 65–74. 23. M. J. Beynon , M. J. Peel, Variable precision rough ...
    ... high risk patients, Computers in Biology and Medicine 40, 2010, pp. 786–790. 32. Y. Zhang, Rough Set Soft Computing Cancer Classification and Network: One Stone, Two Birds, Cancer Informatics 9, 2010, pp. 139–145. 33. J. Dai, Q. Xu, Attribute selection based on information gain ratio in fuzzy ...
    ... Deng, X. Li, Y. Zhong, An Optimized Model for Blasting Parameters in Underground Mines' Deep-Hole Caving Based on Rough Set and Artificial Neural Network, Proceedings of Second International Symposium on Computational Intelligence and Design ISCID 09, Volume 1, Changsha, China, 12-14 December 2009 ...

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... education, no. 37005, Formation of a new extended network of groundwater monitoring in Serbia and "Operational groundwater monitoring in the Republic of Serbia", Ministry of Environmental Protection of the Republic of Serbia (2017-2019). Legenda Monitoring PV . Montoring kvaltota PV . Momhoring kvaMeta ...
    ... aquifers; protection of karst groundwater; the functioning and influence of the epikarst on the karst aquifer; organization of groundwater monitoring network and creation of groundwater databases; environmental impact assessments; sustainable and ecologically safe use of (karst) groundwater; s ...
    ... podzemnih voda u sklopu projekta Operativni monitoring podzemnih voda Srbije (desno) Final groundwater vulnerability map o Serbia according to the IZDAN method (left); Groundwater monitoring locations as part of the project ”Operational Groundwater Monitoring of in Serbia” (right) 13 15 CKH M ...

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... overall deformation was accommodated by the Circum-Moesian Fault System surrounding the Moesian indenter, where strain was partitioned in a complex network of coeval strike- slip, thrust and normal faults. This system represents one of the largest European intracontinental strike-slip deformation zones ...
    ... define this deformation associated with large-scale strain partitioning as the Circum-Moesian Fault System (CMFS), which is made up of a complex network of coeval strike-slip, thrust and normal faults. The mechanics and kinematics of this fault system and its strain partitioning along the Moesian ...

  • Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling

    Branislav Petrović, Veljko Marinović, Zoran Stevanović (2023)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Ontološki model upravljanja rizikom u rudarstvu

    Olivera Kitanović (2021)
    Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...
    rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika
    ... nivelmanski vlak, rudarska viseća busola, teodolit, žiroteodolit,... - +EnvProt - Zaštita životne sredine: aerozagađenje, zagađenje, monitoring vode, monitoring vazduha, remedijacija, rekultivacija, odlaganje otpada, ... - +Surface- Površinska eksploatacija: etaža, završna kosina, stabilnost kosina ...
    ... određenog rudnika, mogla bi se kreirati dodatna mobilna aplikacija za monitoring čime bi se ceo proces upravljanja rizikom zaokružio. Aplikacija bi se oslanjala na ontološki model i pohranjene podatke, a osobama odgovornim za monitoring omogućila da na terenu kroz jednostavne ček liste sprovedu nadzor. ...
    ... developing a specific domain ontology for risks in mining. Key words: mining, risk, risk management, risk assessment, ontology, semantic network, information extraction, knowledge management, computational linguistic Scientific field: Mining Engineering Scientific subfield: Computer science ...

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    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 ...
    klizišta, podložnost, mašinsko učenje