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Упит dcterms_subject_txt:Insulating properties

362 items

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... positive Eu anomaly form by rapid growth from magmatic derived fluids. The studied garnets from Rudnik coincide with the above described optical properties but their REE pattern is quite different. The Al-rich core displays flat REE pattern, whereas the Fe-rich rim is LREE depleted. Both zones display ...

  • 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

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... potential users, including students, translators, teachers, researchers and other interested parties, to find all information on formal and contextual properties of words and their interrelationships, in one place. In addition to new human readable monolingual and bilingual dictionaries, machine readable ...
    ... potential users, including students, translators, teachers, researchers and other interested parties, to find all information on formal and contextual properties of words and their interrelationships, in one place. In addition to new human readable monolingual and bilingual dictionaries, machine readable ...

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... barbosalite, two new phosphate minerals from Minas Gerais, Brazil Am Mineral 40: 952-966. Longo J.M. and Arnott R.J. (1970) Structure and magnetic properties of VOSO4. J Solid State Chem L: 394-398. Longo J.M. and Kierkegaard P. (1966) The crystal structure of NbOPO4. Acta Chem Scand 20: 72-78. ...
    ... Combustion synthesis of oxide materials for nuclear waste immobilization. Bull Mater Sci 17: 977-987. Muthuraman M. and Patil K.C. (1998) Synthesis, properties, sintering and microstructure of sphene, CaTiO5: A comparative study of coprecipitation, sol-gel and combustion processes. Mater Res Bull 33: ...
    ... Fluctuations and Renormalization. 2nd edition, World Scientific Publishing Co. Pte. Ltd. Urbanovich V.S. (1996) Sintering at high pressures and properties of aluminum nitride ceramics. In: Trzeciakowski W.A. (ed.) High Pressure Science and Technology. World Scientific Publishing Co. Pte. Ltd, Singapore ...

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... barbosalite, two new phosphate minerals from Minas Gerais, Brazil Am Mineral 40: 952-966. Longo J.M. and Arnott R.J. (1970) Structure and magnetic properties of VOSO4. J Solid State Chem L: 394-398. Longo J.M. and Kierkegaard P. (1966) The crystal structure of NbOPO4. Acta Chem Scand 20: 72-78. ...
    ... Combustion synthesis of oxide materials for nuclear waste immobilization. Bull Mater Sci 17: 977-987. Muthuraman M. and Patil K.C. (1998) Synthesis, properties, sintering and microstructure of sphene, CaTiO5: A comparative study of coprecipitation, sol-gel and combustion processes. Mater Res Bull 33: ...
    ... Fluctuations and Renormalization. 2nd edition, World Scientific Publishing Co. Pte. Ltd. Urbanovich V.S. (1996) Sintering at high pressures and properties of aluminum nitride ceramics. In: Trzeciakowski W.A. (ed.) High Pressure Science and Technology. World Scientific Publishing Co. Pte. Ltd, Singapore ...

  • Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia

    Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin (2013)

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... Accordingly, Klige [1] has published test results in which the specific digging resistances depend substantially on soil’s physical and mechanical properties, as long as they show at least a small degree of plasticity. Additionally, Marcelli [16] determined the specific digging resistance as a parabolic ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • 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

  • Inženjerskogeološka istraživanja za potrebe izgradnje tunela T1 na putnom pravcu Požega-Kotroman

    Andrija Popović (2024)
    Tokom izrade završnog rada korišćeni su podaci koje sam dobio u saradnji sa firmom „Saobraćajni institut CIP d.o.o.“, kao i ostala odgovarajuća stručna literatura.Osnovni cilj pisanja rada jeste definisanje određenih fizičko mehaničkih parametara i predlog podgrade i načina iskopa tunela na osnovu RMR klasifikacije.
    stenska masa, RMR klasifikacija, tunel, inženjerskogeološka istraživanja
    ... SKI | S s 82B SRO - |SMICANJE/UTraksiaml opit| | VODOPROPUSNOSTI/ MMODULI EDOMETARSKE STIŠLJIVOSTI / Proktorovopit| — Š _ SAMPLE MARK Phisycal properties. = ž| EO [-45-] Direct shear UU Water permeability Oedometer compressibility modulus - standardni | KLASIFIKACIJA Š š Consistency limits Particle ...
    ... SKI | S s 82B SRO - |SMICANJE/UTraksiaml opit| | VODOPROPUSNOSTI/ MMODULI EDOMETARSKE STIŠLJIVOSTI / Proktorovopit| — Š _ SAMPLE MARK Phisycal properties. = ž| EO [-45-] Direct shear UU Water permeability Oedometer compressibility modulus - standardni | KLASIFIKACIJA Š š Consistency limits Particle ...
    ... SKI | S s 82B SRO - |SMICANJE/UTraksiaml opit| | VODOPROPUSNOSTI/ MMODULI EDOMETARSKE STIŠLJIVOSTI / Proktorovopit| — Š _ SAMPLE MARK Phisycal properties. = ž| EO [-45-] Direct shear UU Water permeability Oedometer compressibility modulus - standardni | KLASIFIKACIJA Š š Consistency limits Particle ...

  • Primena ubrzane konsolidacije kod izgradnje nasipa na deonici priključka Novi Beograd – Surčin autoputa ,,Miloš Veliki"

    Aleksa Tomičić (2024)
    Problem koji se javlja prilikom izgradnje objekata na ne konsolidovanom stišljivom tlu jeste pre svega vezan za prevelika sleganja tla usled opterećenja od objekata, najčešće su to objekti putne infrastrukture (nasipi), ili stambeno poslovni objekti. U tu svrhu se,primenjuju različiti vidovi ubrzanja konsolidacije tla. Stoga za potrebe izrade završnog rada Master akademskih studija studijskog programa geotehnika, na Rudarsko-geološkom fakultetu, izvršena je analiza dva najčešće korišćena postupka ubrzanja konsolidacije: predopterećenjem i ugradnjom peščanih drenova. Glavni cilj ovih postupaka je ...
    stišljivo tlo, konsolidacija, ubrzanje konsolidacije, predopterećenje, peščani drenovi

  • Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika

    Kostić N. Bojan (2021)
    Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...
    Rudnik, kontaktni metamorfizam, sedimentne stene, hornfels, skarn, granati, vezuvijan
    ... Kontaktmetamorphose im Kristianagebiet. Oslo Vidensk. Skr., I., Mat.-Naturv. Kl., no.1, p. 483 Haas, J. L. 1976: Physical properties of the coexisting phases and thermochemical properties of the H2O component in boiling NaCl solutions, US Geological Survey Bulletin, 1421-A, p.1-71 Hammerli, J., Rubenach ...
    ... Geology, 55. pp.1345-1381 Connolly, JAD., Petrini, K. 2002: An automated strategy for calculation of phase diagram sections and retrieval of rock properties as a function of physical conditions. Journal of Metamorphic Petrology 20, p.697-708 Cvetković, V., Šarić, K., Péskay, Z., Gerdes, A. 2016: The ...
    ... za list Gornji Milanovac (OGK SFRJ 1:100000). Savezni Geološki Zavod SFRJ, Beograd, pp.69 Franz, G.; Liebscher, A. 2004: Physical and Chemical Properties of the Epidote Minerals: An introduction. Rev. Mineral. Geochem. 56, p.1–81 Gaspar, M., Knaack, C., Meinert, D.L., Moretti R. 2008: REE in skarn ...

  • Production of morphological dictionaries of multi-word units using a multipurpose tool

    Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas (2011)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion
    ... produced during three years, which we found very ineffective. IV. A RULE BASED PROCEDURE FOR INFLECTION OF MWUS A. Detection of inflectional properties of MWU lemmas We have further improved the procedure for production of MWU lemmas when we realized that the answers obtained automatically in ...

  • Towards Automatic Definition Extraction for Serbian

    Ranka Stanković, Cvetana Krstev, Rada Stijović, Mirjana Gočanin, Mihailo Škorić (2021)
    U radu su prikazani preliminarni rezultati automatske ekstrakcije kandidata za definicije rečnika iz nestrukturiranih tekstova na srpskom jeziku u cilju ubrzanja razvoja rečnika. Definicije u rečniku Srpske akademije nauka i umetnosti (SANU) korišćene su za modelovanje različitih tipova definicija (opisnih, gramatičkih, referentnih i sinonimskih) koje imaju različite sintaksičke i leksičke karakteristike. Korpus istraživanja sastoji se od 61.213 definicija imenica, koje su analizirane korišćenjem morfoloških e-rečnika i lokalnih gramatika implementiranih kao pretvarači konačnih stanja u paketu za obradu korpusa otvorenog ...
    ... (usually the headword of a traditional dictionary entry), Part-Of-Speech, markers that describe its syntactic, semantic, usage, dialectal and domain properties, followed by the codes of its possible morphosyntactic realization. Finite state transducers (FSTs) are abstract mathematical constructions that ...

  • Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)

    Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)
    Paleontology, Stratigraphy, Ecology, Evolution, Behavior and Systematics

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... [19] The efficiency of the CO» flooding largely depends on the temperature and pressure of the reservoir. Heterogeneity with rock and fluid properties between formation and drilled wells reduces the effective performance of CO» flooding. EOR currently contributes to only 3 % of CO- utilization ...
    ... es depending on their states and mode of transport. Carbon dioxide may exist in the gas, liquid, solid and supercritical (dense) phases. The properties of CO» are considerably different from other fluids commonly transported by pipeline, such as natural gas. Thus, it is necessary to use accurate ...

  • Application of machine learning for diagnosing the operation of a deep well pump in oil production

    Maja Trikić (2024)
    This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.
    deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost
    ... signal that can be analyzed and interpreted. Fundamental principles include changes in resistance, voltage, capacitance, and electromagnetic properties of materials. 5.3.2. Types of temperature sensors a)Resistance temperature detectors (RTD) – These use changes in the electrical resistance ...
    ... sensors- Utilize the characteristics of semiconductor materials to measure temperature. They typically use diodes or transistors, whose electrical properties vary with temperature changes. Semiconductor sensors are compact and are often used in electronic devices, such as computers and mobile phones ...

  • Анализа рада дисконтинуалног система на основу симулације утовара и транспорта целог површинског копа

    Милош Јовановић (2024)
    У овом раду анализира се рад дисконтинуалног система утовара и транспорта на површинским коповима користећи софтверски пакет Haulsim. Циљ истраживања је побољшање ефикасности процеса транспорта и оптимизација коришћења ресурса. Симулација је спроведена за различите сценарије утовара и транспорта, укључујући варијације у броју возила, њиховој брзини, капацитету, као и рутама транспорта. Добијени резултати су показали значајне могућности за унапређење постојећих процедура и смањење трошкова. Дисконтинуални системи су сложени и захтевају пажљиву анализу како би се постигла максимална продуктивност и смањење ...
    анализа, симулација, оптимизација, ефикасност, Haulsim
    ... 36 AHanuaa paja JUHCKOHTHHYy1aJIHOr CHCTeČMa Ha OCHOBy cuMynauuje yroBapa H TpaHciiopTa IIeJIOr IIOBpIIHHCKOT KOIIA B Materials _ a x +-m Properties | Load and HaulLoading Times — Load and Cary Loading Times |___Name Adive || 'Sand with Grave! - Dry Propertes ) Sand with Gravel - Dry ” P |- ...
    ... — kapakmepucmuke Janogune B Materials _ |} x + Properies | Loadzand Haulloading Times _ Load and Camy Loading Times Name Coal - Arthracite. Properties Sand with Gravel - Dry Material Loader Bucket Fill Factor ? | Coal - Anthracite Insitu Bank Density 1.35| t/mš : - Hxcavatability Medium to ...

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.