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Упит dcterms_subject_txt:Otoliti in situ

1967 items

  • Correlability of Solar Wind with Seismic Events in the Balkan Peninsula Zone

    Filip Arnaut, Dejan Vučković, Ivana Vasiljević, Vesna Cvetkov (2021)
    The Solar Heliospheric Observatory (SOHO) satellite was launched on the 2nd of December 1995 at L1 Lagrange point (1.5×106 km from Earth) with the purpose of gathering data for helioseismology, remote sensing of the solar atmosphere, and solar wind in situ. The satellite was positioned into orbit in early 1996, with data acquisition expected to commence on January 20th. The correlation between increased values of solar wind parameters and earthquakes in the Balkan peninsula zone between 1996 and 2018 ...
    предвиђање потреса, соларни ветар, статистичка валидација узрочника потреса

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • 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)
    orogeneza, oroklini, višesmerna ekstenzija, transkurentna kretanja, Srpski Karpati
    ... standing man in black rectangle for scale) in Tithonian limestones of the Upper Getic sub- unit in the footwall of the Supragetic thrust. Black lines represent bedding. Fold axes are plotted in lower hemisphere stereoplot. Vergence of the folds indicates top to SE thrusting. Studied site Ku1. e) Normal ...
    ... transport, locally associated with NW-vergent backthrusts (structure 5 in Fig. 5), or with E-W to NW-SE oriented strike-slip faulting observed by conjugate Riedels in the main shear zone (site Ku1, structures 6 and 7 in Fig. 5). In the southern part of the studied area, the overall deformation changes ...
    ... strike-slip faults belonging to the first deformation event (e.g., structures 1 and 3 in Fig. 7), such as observed in Upper Jurassic lime- stones of the Lower Getic sub-unit (site Go1, structure 1 Figs. 7 and 9g). In this site, E-W oriented normal faults create a fault gauge breccia that contains planes with ...

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ... tive, and with the  increase  in  speed and measurement resolution, the costs of the investigation and excavation have decreased consi‐ derably. The use of magnetic measurements in archaeological prospecting allows to obtain the data on  739 the size of the site and the approximate position  ...
    ... of the objects (walls, floors of houses, trenches)  in a  relatively short time.  The archaeological site of Kremenite njive  is  located  in  the settlement Barajevo near Belgrade  (Serbia). Applied magnetic investigations were supposed to provide information on the dimensions and  most probable d ...
    ... thod on data collected  in  the  investigated area was made by testing on synthetic data. Although  it was possible to clearly deter‐ mine the edges of the sources of anomalies by the test, on the data from the site Kremenite njive they  are not clearly emphasized. Bearing in mind that the bodies th ...

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... authors 3,4,5,6 Two places where coal homogenization can be conducted are at the mine site and at the stockyards 2. Homogenization of coal in mine site can be achieved at: - mining block (production of one excavator on one bench), - the connecting conveyors (production of all excavator on ...
    ... different benches). For the management of the coal homogenization process at the mining block level is especially important to have enough of in situ data, and to conduct quality operational planning. The importance of operational planning for coal quality control is stressed by Stevanović ...
    ... Coal quality control is complex and comprehensive problem which depends of many factors and elements of production system: - geological in situ data should be credible and with sufficient amount, - geological model should provide realistic interpretation of real structural a qualitative ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... Detailed information about a mine site are shown in a separate page and are grouped into the following sections: general data, properties, registry, owner (stakeholder) and multimedia. A small dynamic map of the surrounding area of the selected mine site with a zoom in possibility is shown with textual ...
    ... where D is the distance of the mine site from the nearest waterway (river, lake, stream), min/max are minimal and maximal distances in the dataset; Population_500m_Score = Pop ˆ 100/max_500 m., Pop is the population living in diameter of 500 m from the current site, max_500 m is maximal population at ...
    ... degraded surfaces area, waterway distance and population in the range of 500 m: Surface_Score = (P ´ min) ˆ 100/(max ´ min), where P is the degraded abandoned area of the current site, min/max are minimal and maximal value for degraded abandoned area in the dataset; Waterway_Distance_Score = (100 ´ (D ´ ...

  • Trace elements and garnet formation in a distal skarn zone: a case study of the Rudnik deposit, Central Serbia

    Bojan Kostić, Pavle Tančić, Natalija Batoćanin (2024)
    geohemija granata, retke zemlje, fluidne inkluzije, skarnovsko ležište Rudnik

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Water in the Alluaudite Type-Compounds: Synthesis, Crystal Structure and Magnetic Properties of Co3(AsO4)0.5+x(HAsO4)2−x(H2AsO4)0.5+x[(H,□)0.5(H2O,H3O)0.5]2x+

    Tamara Đorđević, Ljiljana Karanović, Marko Jagodič, Zvonko Jagličić (2021)
    In this study, a new cobalt arsenate belonging to the alluaudite supergroup compounds with the general formula of Co3(AsO4)0.5+x(HAsO4)2−x(H2AsO4)0.5+x[(H, )0.5(H2O,H3O)0.5]2x+ (denoted as CoAsAllu) was synthesized under hydrothermal conditions. Its crystal structure was determined by a room-temperature single-crystal X-ray diffraction analysis: space group C2/c, a = 11.6978(8), b = 12.5713(7), c = 6.7705(5) Å, b = 113.255(5)◦, V = 914.76(11) Å3, Z = 2 for As6H8Co6O25. It represents a new member of alluaudite-like protonated arsenates and the first alluaudite-like phase ...
    супергрупа алуаудита, арсенати прелазних метала, хидротермална синтеза, кристална структура, хидратисани хидрокси-арсенати, стехиометрија, магнетна својства

  • Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One

    Nemanja Stanic, Dragoslav Rakic, Josip Isek, Slavoljub Simic (2024)
    In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were de-fined as a part of the General Metro Construction Project. The lines are de-signed to intersect at the location of Sava Square, where an interchange met-ro station will be built. It represents a complex geotechnical structure consist-ing of three different ...
    metro station, geotechnical modelling, displacements

  • Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons

    Predrag Pajić, Aleksandar Čalenić, Dušan Polomčić, Dragoljub Bajić (2018)
    U ovom radu sagledana je primena hidrodinamičke analize u okviru odabrane remedijacione metode ,,pumpanja i tretiranja” kontaminiranih podzemnih voda ugljovodonicima, na primeru pretakališta rafinerije nafte u Pančevu. Primenjena hidrodinamička analiza predstavlja pravilan, a sve češće i neophodan pristup u savremenoj hidrogeologiji. Prethodnim hemijskim analizama uzoraka tla i podzemnih voda na istražno-osmatračkim objektima detektovano je zagađenje produktima nafte. Novoizvedena istraživanja obuhvatila su izvođenje 12 pijezometara različitih dubina, geoelektrično sondiranje tla, ,,in situ” merenja prisutnog kontaminanta, izdvojenog kao hidrofobna faza LNAPL, ...
    kontaminacija, matematički model, podzemne vode, remedijacija, ugljovodonici

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... fuzzay MCDM Methods for Engineering- geological Surveys Katarina Bradić Milinović, Otoliti in situ sa teritorije Srbije (stratigrafski, paleockološki i paleogeografski značaj) Katarina Bradić Milinović, Otoliths in sifu from Serbia (stratigraphic, paleoecological and paleogeographical significance) ...
    ... its peak in the middle and second half of the XX century, where the contribution of Paul Ramdohr (1890-1985) to this development should certainly be emphasized. In last decades, the development of many sophisticated methods of microprobe analysis (in-situ) has enabled a further shift in the study ...
    ... it was found that only copper is structurally bound in this mineral, while other impurities (Pb, As and Ag) form finely dispersed nanometer grains of other minerals which were actually subsequently deposited filling the nano-pores in pyrite. In this way, copper-bearing pyrite is well defined and ...

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... same “in Minerals 2021, 11, 564 9 of 17 situ” conditions that exist in the process of the coal mining in this deposit. The influence of water and mining depth is defined in terms of external loads so that the surrounding (confining) pressure value is constant and that it acts uniformly in all directions ...
    ... and cutting resistance per unit of slice cross-sectional area, KA, especially in the water under different hydrostatic pressures (250–600 kPa), Minerals 2021, 11, 564 4 of 17 in laboratory conditions simulating the “in situ” working conditions (depth) of mining, i.e., cutting. 3. Geological Settings ...
    ... laboratory research tests were initially modified to provide reliable data of cutting resistance, especially in the water under different hydrostatic pressures, fully simulating the “in situ” working conditions of mining, i.e., cutting. Keywords: cutting resistance; underwater mining; coal 1. Introduction ...

  • First paleomagnetic and magnetic anisotropy results from Montenegrо - the coastal area

    Emö Márton, Vesna Cvetkov, Martin Đaković, Vesna Lesić, Slobodan Radusinović (2021)
    ... tuffitic layers in the Ladinian. The uppermost unit is theHigh Karst zone developed in a carbonate platform environment from the Middle Triassic till theend of the Cretaceous. In this unit flysch sedimentation started after the K/T boundary.From the above units we drilled and oriented in situ a total of 248 ...
    ... paleomagnetic directions. The AMS fabrics must have been imprinted in aNE-SW oriented compressional strain field, which resulted in moderately strong fabrics with NW-SE oriented AMS lineations, perfectly following the Dinaridic trend recognized in Croatia. Onelocality, the only one with moderate tilt and rather ...
    ... are not dealing with“real” paleomagnetic directions, but maybe with magnetic anisotropy governed NRMs.The rocks in the Budva zone show a large variation in lithological sense as well as in their magneticproperties. Except a Pietra Verde localitiy, the magnetic susceptibilities are weak, we can notdefine ...

  • The ‘Umka’ landslide

    Uroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević (2024)
    We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...
    rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoring

  • Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik

    Jovana Jović (2024)
    Završni rad sa temom ,,Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik” sastoji se iz opšteg i specijalnog dela. OPŠTI DEO sadrži: U opštem delu dato je: Uvod, Geografski položaj i istorijski razvoj rudnika "Rudnik", kratak prikaz geologije ležišta i eksploatacije rude kao i opis tehnološkog procesa flotacije rudnika “Rudnik”. SPECIJALNI DEO sadrži:U specijalnom delu dato je:Cilj istraživanja, teorijske osnove usitnjavanja, Bondov radni indeks, metode ispitivanja uzoraka, uzorkovanje i obrada uzorka; Metode ispitivanja; Rezultati ispitivanja po standardnom Bondovom postupku i po ...
    Bondov radni indeks, standardni postupak, skraćeni postupak, ruda olova, bakra i cinka, rudnik „Rudnik“
    ... vibracionom situ (slika 7), kapaciteta Q = 216,66 t/h sa dve prosevne površine, kod kojih su veličine otvora za proseJavanje 30 x 50 mm ı 18 x 36 mm. Pre izmene sito Je bilo sa tri prosevne površine (30 x 30,25 x 25 ı 18 x 18 mm) ı kao takvo se pokazalo neodgovarajuće. Veličina sita je 1400 x ...
    ... uzorak izvaditi iz mlina i prosejati ga na komparativnom situ otvora (Px). 5. Izmeriti masu odseva komparativnog sita (R). 6. Izračunati konstantnu brzinu mlevenja u prvom eksperimentu (ki), prema formuli: n k = —s — --- Š č—z—— 1 Ni[in(M · ) — InR,] gde je: (X) - sadržaj klase + Px u polaznom ...
    ... formuli: 2,5 In[R; + (M — Ri)X| — ln3 M N,.=n —— {obrtaja] ki 54 9. Ovako pripremljeni uzorak ubaciti u mlin i mleti za vreme od (N») obrtaja. Nakon mlevenja, uzorak izvaditi iz mlina i prosejJati na komparativnom situ otvora (Pk) a potom odrediti masu odseva na komparativnom situ (R). 10 ...

  • Conversion of land areas after coal mine closure and reclamation

    Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić (2023)
    Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.
    rekultivacija, melioracija, revitalizacija, otkopavanje uglja, održivi razvoj
    ... panels in Boortai Coal Mine in China (left) [11], solar plant in Klettwitz former open pit mine, Brandenburg, Germany (right) [12]. 256 Figure 3. Using solar and wind energy on recultivated site - Photovoltaic panels in Boortai Coal Mine in China (2022) on left side, solar plant in Klettwitz ...
    ... to choose the type of re-use of the land affected by coal exploitation in the Kostolac Basin, taking the important principles of ecological planning. 2.1 Study area The location "Drmno" is an external tailings disposal site from PK "Drmno". The maximum length is 2 km, width 1.2 km and height 50 ...
    ... operation lifecycle of the coal mine and portions of the site can be used for renewable power production. The application of solar PV systems provides an opportunity for an alternative revenue source. Equally important is that obtaining licenses to operate in the coal mine rehabilitated land may get easier ...

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • P-T analiza RMU Bitola – krupne klase

    Nemanja Dobrosavljević (2024)
    Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...
    ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans
    ... lučna sita sa otvorima od 0,5 mm. Odsev lučnih sita ide na dalje otkapavanje na vibro sitima a prosev se vraća nazad u bubanj kao suspenzija. ROVNI UGALJ -100+0 mm BUBANJ SA AUTOGENOM SUSPENZIJOM NAT) ČUJAL) | VIBRO SITO VIBRO SITO {a = 10 mm) {a = 5mm}) == = (-) - (* J VIBRO SITO HIDROCIKLON ...
    ... obavlja čišćenje uglja u autogenoj suspenziji. Potom na vibro sita (otvor prečnika 5 mm) iz bubnja izlaze lake frakcije (zajedno sa suspenzijom). Sito (poz. 7) za prosejavanje može biti projektovano i kao ”tromel” varijanta sita i to sito se može integrisati kao sastavni deo bubnja. Sa druge strane ...
    ... koja je otkapana na vibro situ (poz. 17). 38 Drugi deo vibro sita (poz. 7 i 12) poseduje “Rima” prosevnu površinu sa otvorima prečnika 0,5 mm. Na tim sitima se vrši pranje kako krupnog tako i sitnog uglja gde se dobija oprani krupni ugalj klase krupnoće -60+5 mm (sito poz. 7) i oprani sitan ...

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća