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Упит dcterms_subject_txt:General Earth and Planetary Sciences,General Environmental Science

2444 items

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... Resources and Basic Tools“, Proc. of the International Workshop on Balkan Language Resources and Tools, Thessaloniki, Greece, S. Piperidis, V. Karakaletsis (eds.), pp. 97-104. [2] Tufiş, D. (ed.). (2004) Special Issue on BalkaNet Project, Romanian Journal on Information Science and Technology ...
    ... scientific, technical and business information. Efficient exploration of such a valuable source, in view of the diversity and amount of archived data, including textual, is a complex task. The tools we describe are WS4LR, a software tool that has already been developed and used for solving different ...
    ... presents how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for improvement of queries. Search results can be substantially improved by using various lexical resources, such as morphological dictionaries and semantic networks. The ...

  • Geodiversity assessment in urban areas

    Ilić Marina, Stojković Sanja, Rundić Ljupko, Ćalić Jelena & Sandić Dejan (2017)

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    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 ...
    hybrid systems, mine ventilation, expert systems
    ... of the general ventilation state of the mine could be easily mapped onto the appropriate elements of KAPPA-PC. The interface developed for VENTEX in KAPPA-PC fully exploits the GUI (graphical user interface) technology available for MS Windows applications. It enables a straightforward and easy m ...
    ... estimation ventilation simulation Design CFD Estimates estimation of gas and dust emission and temperature conditions flow process modelling using CFD Data acquis ition ventilation and psychrometric parameters ventilation and psychrometric parameters Fig. 3. Architecture of the hybrid system INVENTS ...
    ... Professor, Faculty of Mining and Geology, University of Belgrade, Djusina 7, 11.000 Belgrade 2 Bsc, Faculty of Mining and Geology, University of Belgrade, Djusina 7, 11.000 Belgrade Abstract: Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    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 ...
    ... of the general ventilation state of the mine could be easily mapped onto the appropriate elements of KAPPA-PC. The interface developed for VENTEX in KAPPA-PC fully exploits the GUI (graphical user interface) technology available for MS Windows applications. It enables a straightforward and easy m ...
    ... estimation ventilation simulation Design CFD Estimates estimation of gas and dust emission and temperature conditions flow process modelling using CFD Data acquis ition ventilation and psychrometric parameters ventilation and psychrometric parameters Fig. 3. Architecture of the hybrid system INVENTS ...
    ... Professor, Faculty of Mining and Geology, University of Belgrade, Djusina 7, 11.000 Belgrade 2 Bsc, Faculty of Mining and Geology, University of Belgrade, Djusina 7, 11.000 Belgrade Abstract: Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters ...

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... Faculty of Science, R. Domanovica 12, 34000 Kragujevac, Serbia ARTICLE INFO ABSTRACT Article history: Received 29 July 2011 Received in revised form 28 October 2011 Accepted 9 November 2011 Available online 19 November 2011 Substitution reactions of the monofunctional complexes [(TL®")PdCl]* and [Pd(tpdm)Cl]* ...
    ... asso- ciative supported by the negative values of DS–. Acknowledgements The authors gratefully acknowledge financial support from the Ministry of Science and Technological Development of the Republic of Serbia, Project No. 172011. Appendix A. Supplementary material Supplementary data associated with ...
    ... 21,22] and with the aim to contribute towards our previously publishedwork, we synthesized novel tridentate nitrogen-donor li- gands TLtBu = 2,6-bis[(1,3-di-tert-butylimidazolin-2-imino)methyl] pyridine and tpdm = terpyridinedimethane and the corresponding Pd(II) complexes, [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ ...

  • Recent landslide-rainfall thresholds in Serbia

    Marjanović Miloš, Samardžić Petrović Mileva, Abolmasov Biljana (2018)

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... [13] published the general mathematical Minerals 2021, 11, 564. https://doi.org/10.3390/min11060564 https://www.mdpi.com/journal/minerals minerals Article Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining Vladimir CebaSek *, Veljko Rupar, Stevan Denadié and Filip Miletié ...
    ... Validation, V.R., S.Ð., and F.M.; Formal analysis, V.R.; Investigation, V.Č. and V.R.; Resources, V.Č. and V.R.; Data curation, V.R., S.Ð., and F.M.; Writing—original draft preparation, V.Č.; Writing—review and editing, V.R.; Visualization, S.Ð. and F.M. All authors have read and agreed to the published ...
    ... FL—lateral, and FFT—forward thrust). In the past, the relationship between digging material and specific digging resistance for wheel operation has been analyzed both theoretically and practically. The most critical researchers have been Himmel, Limbrek and Marcelli, Brach, Dombrowski, and Kubec [1,14] ...

  • Процена утицаја на животну средину пројекта експлоатације руде из лежишта „Подвирови“ и „Поповица“

    Илија Стојнић (2024)
    Са порастом популације, технолошким развојем и све већом потребом за природнимресурсима расла је и потреба да се ефектно контролишу утицаји развоја на животну средину. Aкције развоја могу имати утицај не само на физичко окружење, већ и на социјално и економско окружење. Савремени приступ очувања и заштите животне средине заснива се на концепту одрживог развоја, односно на прихватљивости пројеката - објеката и делатности који обезбеђују развој уз дугорочно коришћење и очување природних ресурса, природних вредности и животне средине. Процена утицаја на ...
    Подвирови, Поповица, олово, цинк, бакар
    ... /IL. Hakomah& /Iycko /. Kocyruh(2012) Radioactivity of mining sites of lead, zinc and phosphate ores in Serbia, Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering, 47:6, 812-817, DOI: 10.1080/10934529.2012.664992; MapuHkoBuh TI, 2009: ...
    ... the assessment and management of environmental noise. Official Journal L 189, 18/07/2002 P. 0012 – 0026; ISO 9613 Acoustics - Attenuation of sound during propagation outdoors: (Parts 1, 2) Part 1: 1993 Calculation of the absorption of sound by the atmosphere; Part 2: 1996 General method of calculation ...
    ... 2018; BS 5228: Noise and vibration control on construction and open sites: (Parts 1, 3, 5); Part 1: 1997 Code of practice for basic information and procedures for noise and vibration control, BSI ISBN 0 580 26845 4; Directive 2002/49/EC of the European Parliament and of the Council of 25 June ...

  • Efficiency and lifetime of medium voltage transformers

    Snežana Aleksandrović, Vesna Damnjanović (2017)

  • Mineral-like M1–M2–H-arsenates (M12+ = Sr, Ba, Cd; M22+ = Mg, Co, Ni, Cu, Zn): crystal structure of Cd0.74Mg2.76(AsO4)(HAsO4)2

    Đorđević Tamara, Stojanović Jovica, Karanović Ljiljana (2010)

  • Sanitary protection zoning based on time-dependent vulnerability assessment model – case examples at two different type of aquifers

    Živanović Vladimir, Jemcov Jemcov, Dragišić Veselin, Atanacković Nebojša (2017)

  • Оцена перспективности изворишта "Вић баре" за водоснабдевање Обреновца

    Бојан Хајдин, Душан Поломчић, Зоран Стевановић, Драгољуб Бајић, Катарина Хајдин (2012)
    ... on created hydrodynamical model confirmed that no additional amount of groundwater could be pumped at that source without serious drawdown and negative environmental consequences. It is therefore evaluated an option to introduce artificial recharge of the alluvial aquifer by constructing small ponds or ...
    ... FV ,Zabrezje“, 12. profilska linija. Figure 1. Hydrogeological map and sections A-B of groundwater sources “Vic Bare”. Legend: 1. clay and sand with the main water bearing layer in gravel (Q), 2. sand and alevrite, 3. loess clay and fine sand, 4. clay (Pl), 5. geological boundary, 6. intergranular porosity ...
    ... west from Belgrade) and plan to connect smaller settlements to the main waterworks system have initiated hydrogeological research and creation of hydrodynamical model of the exisiting source ,,Vié bare“ located in Sava River alluvium. The source consists of 30 vertical drilled wells and the two collector ...

  • Advantages and challenges in presenting mathematical content using EDX platform

    Marija Radojičić, Ivan Obradović, Ranka Stanković, Olivera Kitanović, Roberto Linzalone (2016)
    ... as digitised materials offered freely and openly for educators, students and self- learners to use and reuse for teaching, learning and research [1]. OERs have been used for different topics and they can be in various forms from simple texts, pictures and videos to entire courses. In this ...
    ... Tempus project BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology Enhanced Learning). This project has put together partners from Western Balkans and EU universities from Serbia, Montenegro, Bosnia and Herzegovina, Italy, Slovenia and Romania as well as two partners from industry ...
    ... with the benefits of contextualization. 4) Personalization and localization by optimizing the deployment of institutional staff and budgets, and serving students in local languages. 5) Involving students in the selection and adaptation of OER in order to engage them more actively in the ...

  • Analiza uporednog praćenja temperature površine ohlađenih materijala pri njihovom zagrevanju do ambijentalne temperature

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Katarina Nestorović (2021)
    U datom eksperimentalnom radu su termografskim metodama ispitivane termofizičke karakteristike različitih materijala. Za ispitivanja su izabrani mesingani niovčić, ugalj i pelet, jer imaju različita termoizolaciona svojstava i različito stanje površine. Uzorci su najpre hlađeni, a zatim je njihovo zagrevanje na sobnoj temperaturi praćeno termalnom kamerom. U drugom delu eksperimenta, korišćena je impulsna termografija, a zagrevanje površine uzoraka vršeno je svetlosnom pobudom.
    termografija, impulsna termografija, nedestruktivno testiranje materijala, mesing, ugalj, pelet

  • A brittle tectonic history of the Internal Dinarides: an inference based on the paleostress study in the Valjevo area (western Serbia)

    Mladenović Ana, Trivić Branislav, Cvetković Vladica, Pavlović Radmila (2014)

  • Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова

    Miodrag M. Grujić (2014-06-04)
    Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...
    одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, Београд
    ... The general conclusion is that the economy development and increase of the living standard create the necessary prerequisites for intensive application of renewable energy sources and high-efficiency technologies. The proposed methodological approach which includes defining problem and setting ...
    ... FOR SUSTAINABLE ENERGY DEVELOPMENT OF CITIES SUMMARY Balancing of environmental, economic and social issues is the essence of sustainability. That is continuous process, related to our living environment and their systematic improvements. For sustainable development, energy is one of ...
    ... of the most important drivers. Improving the social welfare, economic development, but also environmental impacts are closely related to energy development. Urban areas are the centers of energy demand and carbon emissions. For that reason, cities are the places where the actions for promoting the ...

  • Управљање отпадом – услови, циљеви и изазови на домаћем тржишту

    Дарко Драгићевић (2024)
    Тема овог завршног рада обухвата анализу система управљања отпадом на домаћем тржишту, са посебним освртом на постојеће изазове и могућности за унапређење. Управљање отпадом је кључна компонента заштите животне средине и одрживог развоја, док у Србији ова област пролази кроз процес трансформације у складу са захтевима Европске уније и међународним стандардима. Овај завршни рад је пружио боље разумевање сложености управљања отпадом у Србији и понудио практична решења која могу помоћи у остваривању одрживог развоја у овој области.
    Заштита животне средине, управљање отпадом, комунални отпад, рециклажа
    ... existing challenges and opportunities for improvement. Waste management is a key component of environmental protection and sustainable development, while in Serbia this area is undergoing a transformation process in accordance with the requirements of the European Union and international standards ...
    ... final paper provided a better understanding of the complexity of waste management in Serbia and offered practical solutions that can help achieve sustainable development in this area. Keywords: Environmental protection, waste management, waste management, recycling. CAJP)KAJ 1. YBOR.... 2 ...
    ... 14000:2004 - Environmental management systems 3 3AKOH o ynpaerbatby omna0oM „CnyXx<6eHu a/nacHuk PC”, 6p. 36 on 15. waja 2009, 88 ojn 23. HoBeM6pa 2010, 14 oan 22. be6pyapa 2016, 95 oan 8. neueM6pa 2018 - np. 3akoH, 35 o/n 29. anpvana 2023 “ Report of the World Commission on Environment and Development: ...

  • Hydrological characteristics of the Timok River, Eastern Serbia

    Žugić Drakulić Nataša, Vasić Nebojša, Mihajlov Anđelka, Štrbac Snežana (2012)

  • Navigacija budućnosti: poslovni rizici i prilike u rudarskoj industriji

    Petar Marković, Dejan Stevanović, Mirjana Banković, Vuk Lazić (2024)
    Sektor rudarstva i metalurgije se globalno suočava sa brzo evoluirajućim okruženjem u 2024. godini, koje karakteriše jedinstvena međusobna zavisnost rizika i prilika. Sektor je u središtu globalne energetske tranzicije, uz rastuću potražnju za kritičnim mineralnim sirovinama poput litijuma, nikla i bakra, koji su od suštinskog značaja za tehnologije obnovljive energije i električna vozila. Međutim, ova sve veća odgovornost donosi brojne izazove, uključujući pojačanu pažnju na ekološke, društvene i upravljačke (ESG) faktore, fizičke i tranzicione rizike uzrokovane klimatskim promenama, i ...

  • Evolution of the Alpine Tethys (Sava) suture zone in Fruška Gora Mountains (N Serbia): from orogenic building to tectonic omissions

    Toljić Marinko, Matenco Liviu, Đerić Nevenka, Milivojević Jelena, Gerzina Nataša, Stojadinović Uroš (2010)