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Упит dcterms_subject_txt:kamena so

518 items

  • Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji

    Dragoslav Rakić (2013-05-10)
    U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...
    komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganja
    ... (k) Si So = 0.5Si Sk = 0 Ni No = Ni Nk = No I papir-karton, meka i tvrda plastika Ai Ao = Ai + 0.5Si Ak = Ao + So Si So = 0.5Si Sk = 0 Ni No = Ni + 0.5Si Nk = No + So II metali, staklo, drvo, koža, tekstil Ai Ao = Ai Ak = Ao Si So = 0.8Si Sk = 0 Ni No = Ni Nk = No + 0.5(Ao+So) III organske ...
    ... Si=0.8x45.7= 36.56 So = 0.8Si= 29.25 Sk = 0 Ni=0.2x45.7= 9.14 No = Ni= 9.14 Nk = No + 0.5(Ao+So) = 27.42 III OR1 45.7 Ai = 0 Ao = Ai + 0.2Si= 7.31 Ak = 0.5(Ao+So) = 18.28 Si=0.5x4.2+0.5x9.6= 6.9 So = 0 Sk = 0 Ni=0.5x4.2+0.5x9.6= 6.9 No = Ni + Si = 13.8 Nk = No + 0.5(Ao+So) = 13.8 IV U11+F12 ...
    ... organske materije Ai Ao = Ai + 0.2Si Ak = 0.5(Ao+So) Si So = 0 Sk = 0 Ni No = Ni + Si Nk = No + 0.5(Ao+So) IV nerazvrstan - ostali otpad Ai Ao = Ai Ak = 0.5(Ao+So) S – stišljivi; N – nestišljivi; A – armirajući; (p) – početno; (o) – odložen; (k) - konačno 4 - Geotehnička klasifikacija komunalnog ...

  • Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji

    Dragoslav Rakić (2013-05-10)
    U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...
    komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganja
    ... (k) Si So = 0.5Si Sk = 0 Ni No = Ni Nk = No I papir-karton, meka i tvrda plastika Ai Ao = Ai + 0.5Si Ak = Ao + So Si So = 0.5Si Sk = 0 Ni No = Ni + 0.5Si Nk = No + So II metali, staklo, drvo, koža, tekstil Ai Ao = Ai Ak = Ao Si So = 0.8Si Sk = 0 Ni No = Ni Nk = No + 0.5(Ao+So) III organske ...
    ... Si=0.8x45.7= 36.56 So = 0.8Si= 29.25 Sk = 0 Ni=0.2x45.7= 9.14 No = Ni= 9.14 Nk = No + 0.5(Ao+So) = 27.42 III OR1 45.7 Ai = 0 Ao = Ai + 0.2Si= 7.31 Ak = 0.5(Ao+So) = 18.28 Si=0.5x4.2+0.5x9.6= 6.9 So = 0 Sk = 0 Ni=0.5x4.2+0.5x9.6= 6.9 No = Ni + Si = 13.8 Nk = No + 0.5(Ao+So) = 13.8 IV U11+F12 ...
    ... organske materije Ai Ao = Ai + 0.2Si Ak = 0.5(Ao+So) Si So = 0 Sk = 0 Ni No = Ni + Si Nk = No + 0.5(Ao+So) IV nerazvrstan - ostali otpad Ai Ao = Ai Ak = 0.5(Ao+So) S – stišljivi; N – nestišljivi; A – armirajući; (p) – početno; (o) – odložen; (k) - konačno 4 - Geotehnička klasifikacija komunalnog ...

  • Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2

    Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)
    Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...
    Metals and Alloys, Biochemistry, Biomaterials, Biophysics, Chemistry (miscellaneous)
    ... corresponds to an isoform of the enzyme with higher mass present in the preparation. The peak at lower m/z ratio around 11 709 has not been assigned so far, but it might correspond to a fragment of PLA2, possibly obtained during the process of enzyme preparation. However, additional peaks in the mass ...
    ... which is important for water homeostasis and overall metabolism. The association of pancreatic PLA2 with cancer progression has not been demonstrated so far and the effect of transition metal complexes on the activity of this enzyme has not been studied. In this work, this enzyme serves only as a model ...

  • Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia

    Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)
    Earth-Surface Processes

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... management process and the establishment of the time needed for completion of the necessary activities. Operative plan of risk assessment should be defined so as to minimize the maximum time needed for its completion and thus avoid postponing problem resolution, which would increase the probability of a risk ...
    ... exposure to toxic substances. Dust particles affect the functioning of the cardio-pulmonary system and can cause mortality due to long-term exposure [35], so analyses are carried out in relation to the concentration of pollutants. Studies of the impact of ambient air pollution on human health and mortality ...
    ... exposure to toxic substances. Dust particles affect the functioning of the cardio-pulmonary system and can cause mortality due to long-term exposure [35], so analyses are carried out in relation to the concentration of pollutants. Studies of the impact of ambient air pollution on human health and mortality ...

  • 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
    ... is supplied to the fuel reactor to oxidize (combust) the fuel; thus, oxygen carrier would be reduced to metal (Me) or less oxidized state (MeOx-i), so the process is termed as reduction reaction. Subsequently, the reduced oxygen carrier moves into the air reactor to oxidize to its original point ...
    ... t >—< CaCO, Desalination —— Fresh water :I“"”:" —E y utilization MACO. [ , Sulfur Nea water l?uullnn/.m w — — CaSO, utilization Flue un(( O„SO,) —— Water treatmeni —— HBauification — Gas treatment — Utilization Figure 3.2 Desalination process 3.2. Enhanced Oil Recovery Enhanced oil/gas ...
    ... fuels, the proposed laboratory-scale technologies are still far from industrial commercialization. This is partly because the materials investigated so far are expensive to make yet are not chemically stable and partly because, in most cases, conversion rates and overall results of the main products ...

  • A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić (2012)
    This paper outlines the main features of Bibliša, a tool that offers various possibilities of enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically, using different supporting monolingual and multilingual resources, such as wordnets and electronic dictionaries. The tool operates within a complex system composed ...
    multilingual digital libraries, query expansion, TMX
    ... planned, which would enable privileged users to enhance and correct the dictionaries used in query expansion on the basis of search results. So far, we have used wordnets and the Dictionary of librarianship as supporting multilingual resources. In the future we plan to expand the set of these ...

  • A Lexical Approach to Acronyms and their Definitions

    Cvetana Krstev, Duško Vitas, Ranka Stanković (2015)
    In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.
    ... and middle part). The agreement check is performed in the upper part; namely, if a feminine gender noun is in, for instance, genitive singular than so have to be two adjectives that precede it. Simple word lemmatization is performed by the same graph – information about recognized word form lemma ...

  • Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”

    Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić (2015)
    ... 8m-10m wide bed- ding planes, the angle of inclination of slopes 55°-65° and a general end slope of 33°. Bauxite is being excavated up to the �ooring so that the stope slope is milder in the northwestern part and there are roads for the bauxite transport located. The stope is open from level +410m ...

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... consideration. In practice, these indicators can be determined by complex calculations and taking into consideration different and very often, not so reliable sources of information. The other approach is to use the experience of machine operators and workers in maintenance and logistics processes ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine

    Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)
    Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... observed that the parameters defining quality of service are not consistent, but have considerable ambiguity, and cannot be expressed quantitatively, so the model of integration, based on the theory of fuzzy sets, has been developed. Theories of fuzzy logic are specifically used for description and ...
    ... conventional models because it shows the importance of partial availability indicators. The final grade is in the descriptive form and depicts a tendency, so it is not given in the form of the number only. The necessary data for this model are the expert assessments of employees in the operation and maintenance ...

  • 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

  • Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)

    Liubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić (2020)
    Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, Serbia

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... powerful and cost- effective source for electricity generation. The costs of the imple- mentation of RESs in energy systems are substantially reduced so in some regions of the U.S and Europe, electricity from RESs could become cheaper than electricity produced from traditional high- carbon energy resources ...
    ... data from the relevant locations. The presented approach shows that the problem of research is multidimensional coupled with the lack of information, so it is not feasible to conduct analysis using a method limited exclusively to the evaluation of energy indicators without multi- criteria decision-making ...

  • Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints

    Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski (2024)
    Apuseni-Banat-Timok-Srednogorie belt, danubicum, paleomagnetism, oroclinal bending

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... e et al., 2023), while others examine its effects on countries and regions that have recently adopted an ETS (Ii et al., 2022) or have yet to do so (Oliveira et al., 2021). Most of these scientific and professional studies focus on the effects of an ETS on reducing emissions (Haites et al., 2018; ...
    ... before the effects of investment effects. It should be noted that this scenario also predicts a more ambitious increase in ETS prices over the years, so the later growth is primarily driven by higher ETS revenue and subsequent investments compared to Scenario 1. Finally, Scenario 3, which maintains ...

  • Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication

    Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović (2023)
    Ammonites, Taxonomy, Lower Berriasian, Getic, Northern Tethys, Serbia
    ... Czech Republic. 4. Taxonomy of ammonites As already mentioned, the bulk of the ammonite collection consists of ribbed shells, especially of the so-called perisphinctoid type. Historical monographs starting from the second half of the previous century, and several subsequent publications (as is ...
    ... mm. At Dmax, there are 11—12 lateral tubercles per half-whorl and approximately 45—50 secondary plus intacalar ribs. When H = 11 mm, B = 12 mm, so the threads are slightly wider than their height. Remarks and relations. The Hungarian specimen (Szives and FOzy, 2013) belongs to the macroconch ...
    ... equals: A, C 10 mm; B, 20 mm; D-F 30 mm. 'JD 3 2 u2 1d my S d '2 1A 0u 24 qD y '( "2 21 SD A 'Z EC 9S OI (E CO Z) IS I lU O4 DO SO y Sn O0 0D lO RD Z. Vašiček, D. Rabrenović, P. Skupien et al. the genera and species composition of ammonites, the association described here ...

  • Анализа режима истицања карстног врела Горњи Душник (Сува планина)

    Александар Танасковић (2024)
    Карстно врело Горњи Душник налази се у истоименом селу у југоисточној Србији, у општини Гаџин Хан. Врело је узлазног типа и дренира западне делове Суве планине.Каптирано је за потребе водоснабдевања Гаџиног Хана, као и села Горњи и Доњи Душник.Током 2023. и 2024. године спроведена су хидрогеолошка истраживања, са циљем дефинисања режима и биланса подземних вода врела Горњи Душник. У ту сврху, коришћени су подаци из два осматрачка периода.Прва осматрања режима истицања је вршио Геозавод, од 1.11.1977. до 31.01.1979. године.Затим су ...
    карстно врело, режим истицања, аутокорелација, кроскорелација, рецесиона анализа
    ... B v i H a ( m m ) o o o 400 200 0 o wocmwnoOomwomwoOomw_Oo w e or” w o oSDaoO0oeooOo == o oO O DO DO Oo ”6e eeoo = e'eeecroeSeo=So = GQ,QQ,G<&Q Cmaka 1.12: T ommmbe cyMe najtaBHHa ca TpcH/IOM IIDpOMCHe CyMe Iajl{aBHHa 32 KHIIOMEpHy craHumy Baoymnuma To nu wu iW be cy Me ...
    ... 1 689 | 133.9 54.9 90.9 85.9 37 14.4 | 117.2 6.7 17.1 94.5 1979 71.3 Pa 53.7 | 68.9| 133.9| 54.9| 90.9| 859)| 37.q0| 144| 117.2 67 | 454| 92.2| SOLI Ta6ena 3.5: Cpe0we Meceune u cpe0bbe eoluutba cyMa na0asuHa ocMompeHux Ha Mem. Cm. ba6yunuua 3a nepuoo oo 1.1.2018. 0o 30.06.2019. zo0une Jan ...
    ... Đulj5 ''Aoyxsed eyeuzo ulupiepue)s epueBe~ eoiuipal ulueunuey epueBe~ d •yč < — uĐUJey AOJOX 000SC ·} 8 - V IIJoudd D/SO|O9S) [uuuuu] g Bojud JOAZI |U|E}S · ĐepoA utluuiezpod oOAlu uol|Ae}sSod}ead Z eyeuzo ulyso|/o95ouplu epue694 tuBpz! dii ...