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Упит dcterms_creator_txt:Kaindl R.

767 items

  • 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
    ... функцију у зависности од домена можемо представити као R(z) – уколико је представљамо дубински или R(t) – уколико је у временском домену. Сеизмичка траса представља резултат конволуције основног (иницијалног таласа) и рефлективне функције R. Основни конволутивни модел сеизмичке трасе потребно је ...
    ... тригонометријске, Гаусове или њеног извода). Таласна једначина биће: ∂2P∂t2 = C2 (∂2P∂x2 + ∂2P∂z2) + C2 ∙ F (3.3) где је: F(t) = R ⋅ (nΔt) ⋅ ⅇ−(nΔt)2⋅M, M и R представљају константе. Иницијални, односно изворни талас се најчешће назива таласић и представља се једноставном функцијом која изражава ...
    ... конволуције иницијалног таласића (w) са импулсом средине кроз коју се распростире (i), који је дефинисан путем коефицијента рефлексије (R) који се изражава као: R = z2 − z1z2 + z1 (3.12) Сеизмичка траса тада представља скуп рефлективних коефицијената у времену. Примена рефлективне сеизмике код ...

  • Ispitivanje granice dielektrik – poluprovodnik u MIS strukturama na bazi p-Hg0.8Cd0.2Te

    Damnjanović Vesna, Elazar Jovan (2010)

  • Primena nove generacije dizel motora u mašinama pomoćne rudarske mehanizacije

    Ivanović Jovan, Đenadić Stevan, Miletić Filip, Kovač Aneta (2018)

  • Analiza tehničkih karakteristika mobilne drobilice Mobicat MC125 ZS Kleemann na površinskom kopu krečnjaka

    Lazić Marko, Đenadić Stevan, Miletić Filip (2018)

  • The stratigraphy of the Serbian Corbicula beds

    Gaudenyi Tivadar, Nenadić Draženko, Stejić Petar, Jovanović Mlađen, Bogićević Katarina (2015)

  • Ispitivanje strukture usklađenosti i stepena integrisanosti privrednih društava „Kolubare“ i „Tent-a“

    Maksimović Svetomir, Miljanović Igor, Lekić Kojić Snežana (2013)

  • Kinetic investigations of two processes for zinc recovery from zinc plant residue

    Štrbac Nada, Mihajlović Ivan, Andric Velibor, Živković Živan, Rosić Aleksandra (2011)

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... C., PAICHELER, J.C. & POINT, R. (1973): Etude de la flore de la série de Giromagny (Viséen Supérieur des Vosges méridi- onales). Comparaison avec les autres flores du Culm des Vosges.– Bulletin Sci- ences Géologiques, 26/1, 43–68. doi: 10.3406/sgeol.1973.1425 DABER, R. (1959): Die Mittel-Visé-Flora ...
    ... doi: 10.1016/S0034-6667(96)00075-9 MIKULÁŠ, R., LEHOTSKÝ, T. & BÁBEK, O. (2002): Ichnofabric of the Culm facies: a case study of the Moravice Formation (Lower Carboniferous; Moravia and Silesia, Czech Republic).– Geol. Carpathica, 53, 141–148. MIKULÁŠ, R., LEHOTSKÝ, T. & BÁBEK, O. (2004): Trace fossils ...
    ... abstract].– Ann. Geol. Pennins. Balk., 27, 296–315. SCHMID, M.S., FÜGENSCHUH, B., KUNOV, A., MATENCO, L., NIVERGELT, P., OBERHÄNSLI, R., PLEUGER, J., SCHEFER, S., SCHUSTER, R., TOMLJENOVIĆ, USTASZEWSKI, K. & VAN HINSBERGEN, D.J.J. (2020): Tec- tonic units of the Alpine collision zone between Eastern Alps ...

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • 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 ...
    ... Expert Systems, North-Holland, Amsterdam, 1986. [5] Lilić,N., Stanković,R., and Obradović.I., Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Beograd, 2000. [6] Lilić,N., Stanković,R., and Obradović.I., "A software package for mine ventilation simulation in ...
    ... in damage conditions", Ecologica, special issue 1, 9-12, (in Serbian), 1994. [7} Lilić,N., Obradović.I., Stanković,R., “Ventex: An Expert System for Mine Ventilation Systems Analysis“, Mining Technology, Vol. 79, No 915, pp. 295-302, 1997. [8] Oral,M.K. and Durucan,S., (1993), "An Integrated Environment ...

  • Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia

    Jelka Krušić , Biljana Abolmasov, Miloš Marjanović (2021)
    The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...
    tecišta, zadržavanje nanosa, RAMMS, validacija

  • Osetljivost proizvodnje pojedinih proizvodnih sektora u privrednim društvima TE-KO „Kostolac“ na promene tehničkih koeficijenata

    Maksimović Svetomir, Miljanović Igor, Boševski Stefko, Benović Tomo (2010)

  • Microorganism activity in mine soils of black locust (Robinia pseudoacacia L.) stands on copper mine wastes in Bor, Serbia

    Ranđelović Dragana (2017)

  • Koncept revitalizacije pogona rotornog točka bagera u uslovima površinskih kopova lignita Srbije

    Jovančić Predrag, Ignjatović Dragan, Đenadić Stevan, Miletić Filip (2018)

  • Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije

    Branko M. Petrović (2016-07-12)
    Rotorni bageri su mašine koje se u današnje vreme najviše primenjuju uprocesu masovne eksploatacije uglja zahvaljujući, pre svega, nizu tehničkoeksploatacionihprednosti u odnosu na druge vrste bagera. Raznovrsnirudarsko-tehnički zahtevi otkopavanja doprineli su razvoju nekoliko tipova ovihmašina, tako da svaki od njih ima svoje prednosti i nedostatke u odnosu nadrugi tip.Predmet istraživanja u disertaciji odnosi se na izbor optimalnekonstrukcije strele bagera i njene usaglašenosti sa uslovima radne sredine kojiće vladati na površinskim kopovima lignita Srbije, imajući u vidu složene usloveeksploatacije (velika ...
    površinski kop, parametri bloka, kapacitet, rotorni bager, strelabagera, geomehanika, stabilnost kosina, ekonomija
    ... vrste stena 10 - 15% uzoraka od r. br. 1 - 5, svi uzorci r. br. 6 Piknometarskom metodom 10. Granulometrijski sastav Slabije peščane i glinaste stene 10 - 15% uzoraka od r. br. 1 . Vizuelno, sejanjem i dr. 11. Indeks plastičnosti Glinaste stene Sve uzorke r. br. 6 Granica tečenja -– ručno; ...
    ... otkopavanja i konstruktivnih karakteristika bagera : 𝛽č𝑔𝑟 = 𝑎𝑟𝑐𝑡𝑔( �ℎ𝑟𝑔−𝑟� (𝑅𝑔−𝐹−𝑓) ) (3.21) Rg αg hg hr g- r r βègr 52 gde je: 𝐹 – dužina gusenica merena od vertikalne ose okretanja bagera do njene prednje ivice (m); 𝑓 - minimalno odstojanje ...
    ... iskorišćenja bagera zbog češćeg uklapanja istog za otkopavanje novog bloka. Smanjenje širine bloka radi Rg ϕgu Rd ϕds B Bds hr g- r B1 Bgu Bgs B hrg-r/cotgβο 56 povećanja ukupne otkopne širine, tj. otkopavanje bloka iz dva prolaza bagera za jedan položaj etažnog transportera ( ...

  • Ventex: an expert system for mine ventilation systems analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...
    expert system, mine ventilation

  • 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
    ... from recent practice. Environ. Impact Assess. Rev. 1996, 16, 31–55. 2. Therivel, R. Strategic Environmental Assessment in Action, 2nd ed.; Taylor and Francis: New York, NY, USA, 2013; pp. 57–74. 3. Therivel, R.; Partidario, M.R. The Practice of Strategic Environmental Assessment, 1st ed.; Taylor ...
    ... S.; Evansa, H.; Gillingsa, S.; Jarretta, D.; Raynor, R.; Wilsona, M. Large-scale citizen science improves assessment of risk posed by wind farms to bats in southern Scotland. Biol. Conserv. 2017, 215, 61–71. 26. Farfán, M.; Duarte, J.; Real, R.; Muñoz, A.; Fa, J.; Vargas, J. Differential recovery ...
    ... Crunkhorn, R.; Trinidade, A. Wind turbine syndrome: Fact or fiction? J. Laryngol. Otol. 2013, 127, 222–226. 61. Doolan, C. A review of wind turbine noise perception, annoyance and low frequency emission. Wind. Eng. 2013, 37, 97–104. 62. McCunney, R.J.; Mundt, K.A.; Colby, W.D.; Dobie, R.; Kaliski ...

  • Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species

    Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)
    Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...
    microstructure, microwave-hydrothermal synthesis, adsorption, magnetic nanoparticles, arsenic