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Упит dcterms_subject_txt:chemical analysis

753 items

  • 3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies

    Abolmasov Biljana, Pejić Marko (2012)

  • Condition and behaviour diagnostics of drive groups on belt conveyors

    Maneski Taško, Jovančić Predrag, Ignjatović Dragan, Milošević Mitić Vesna, Maneski Miloš (2012)

  • 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)
    ... pre-extraction and extrac- tion stage of the underground deposit mining project. Pre-extraction activity in view of mine surveying includes: - Analysis of the existing geometric base on the terrain surface, stabilization of new geodetic points and determination of their spatial coordinates; - ...
    ... - Detailed scanning of the open pit levels (Figure 5), which are interactive with the designed bench drifts for the purposes of geomechanical analysis of the stability; - Detailed scanning of the existing mine chambers. Figure 5 Parts of open pit benches in interaction with bench drifts The ...
    ... to be used for setting out. In this stage, the a priori accuracy assessment is the most important task in view of mine surveying, because this analysis de�nes the setting out method, the type of surveying instruments and their class, as well as the accuracy itself and the number of repetitions ...

  • 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

  • Machine Learning and Landslide Assessment in a GIS Environment

    Marjanović Miloš, Bajat Branislav, Abolmasov Biljana, Kovaćević Miloš (2018)

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... practice between Serbian reserve categories and categories according to the JORC or similar classifications [26–30]. 2. Materials & Methods The analysis and assessment of current situation in the mining industry in Serbia, presented in this paper, deals with some of the important factors that influence ...
    ... relationship between the origin of clays and their quality and morphology of de- posits, and quite a large database of unpublished reports. In this analysis we were using results from numerous geological reports on different industrial clays that were prepared in the last 60 years. It included a couple ...
    ... were numerous papers and studies in which geology, mineralogy and origin of different indus- trial clays were studied [31–40]. Our assessment and analysis included four issues:  The first issue was related to existing mining legislation, improvements that were performed in the last ten years, and ...

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • 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
    ... shadow flicker effect, possible accident situations); and the landscape. Analysis of each of the mentioned territorial impacts is especially important for determining the optimal number and position of wind turbines. This analysis can be partial (the authors use the term “partial” for all assessments ...
    ... elements [19–29], which is not unusual given the dynamic development of wind energy at the global level. This paper focuses on a partial noise analysis as part of a unique impact assessment carried out within the framework of SEA for the urban plan of one of the largest planned wind farms in ...
    ... infrasound [33–43], while others highlight the significance of low frequency sound Energies 2021, 14, 6174 3 of 15 [44,45]. After an extensive analysis of the literature, Freiberg et al. [46], in an assessment of the potential effects of wind turbines on human health, concluded that in the case ...

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... Widera, 2012). Prior to laboratory analysis (chemical, physical and incu- bation experiment), lignite subsamples were aseptically crushed to φ< 2 mm in anaerobic conditions in a glove box (Labconco, USA, atmo- sphere of nitrogen). 2.4. Physical and chemical analysis The moisture of the lignites was ...
    ... Velenje lignite mine. Further statis- tical analysis, performed with the use of ANOSIM, confirmed that there were significant differences between the lignites. The most important variable determining similarity/dissimilarity of the lignites in terms of physico-chemical properties was age (R=0.72, p< 0.01). ...
    ... and chemical properties were analysed using non-metric multidimen- sional scaling (NMDS) in PAST 4.03 (Hammer et al., 2001). NMDS was used to detect patterns that could explain the observed similarities and dissimilarities among the samples. 3. Results and discussion 3.1. Physical and chemical properties ...

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... be obtained through its full utilization for heat production in the existing district heating systems. Three groups of indicators are selected for analysis focusing on district heating systems’ energy performance (primary energy factor, specific heat consumption per degree day and heating area), the ...
    ... for space heating. Mateu-Royo et al. (2020) presented the thermo-economic optimization, focusing on performance of the system and environmental analysis. Koll- mann et al. (2017) proposed a novel method to assess the integration of wastewater treatment plants (WWTPs) into local energy supply concepts ...
    ... potential in wastewater treatment facilities including codigesting of sewage sludge. Maddah et al. (2020) presented a thermo–economic–envi- ronmental analysis of heat recovery potential from the Ira- nian industry sector and calculated natural gas savings and carbon dioxide reduction. Somogyi et al. (2018) ...

  • Classification of Neolithic Ceramics and Clays According to Their Morphological Characteristics

    Gajić Kvaščev Maja, Svoboda V., Jančić-Heinemann R., Dimitrijević M., Milovanović Dragan, Polić Radovanović Suzana (2012)

  • Load bearing steel structure diagnostics on bucket wheel excavator, for the purpose of failure prevention

    Jovančić Predrag, Ignjatović Dragan, Tanasijević Miloš, Maneski Taško (2011)

  • Automatic construction of a morphological dictionary of multi-word units

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić (2010)
    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, multiwordn units, noun phrases, query expansion
    ... Tome i Principe. However, all super-classes are covered by rules. 8 Authors Suppressed Due to Excessive Length 4 Analysis and Evaluation of the Strategy We have performed the analysis and evaluation of our strategy in two steps. In the first step we applied the strategy to the same data that we used ...
    ... transducers (FSTs) that rely on morphological e-dictionaries of simple words to model these MWUs correctly [4]. When applied to a text in automatic text analysis these FSTs associate recognized MWUs with lemmas as well as with appropriate grammatical categories. Both the associated lem- mas and grammatical ...
    ... music’). Following this approach, only 3195 DELAC entries were produced in the past three years, which we found very ineffective. In a comprehensive analysis of several tools for MWU inflection description [3] the author mentions only one system, FASTR, that supports automated MWU lexicon creation [7]. ...

  • Analiza pogonskih sistema rotornog točka na bagerima SRS-2000 sa ciljem unifikacije

    Predrag Jovančić, Dragan Ignjatović, Nebojša Gnjatović, Srđan Bošnjak (2018)

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... guarantee the realization of profits, are a thing of the past. Successful business in conditions of limited resources is impossible without many analysis of the technical and economic parameters and detailed planning of all possible scenarios of production. Due to availability of the coal resources ...
    ... lithological intervals (11298 records), followed by lithological and ply / rock parting coding • Checking sample intervals, individual ply analysis and composite assays (5109 records, average sample length is 0.8m), • Checking drill hole collar coordinates to eliminate any obvious errors ...
    ... total there were 5109 drill hole samples taken from the 185 drill holes, 4045 coal samples and 1064 rock partings samples (dominantly clay). Analysis testing was conducted for Moisture, Ash, Lower (LVC) and Upper Calorific Value. After preliminary statistical analyses the 367 sample where ...

  • The different approaches in seismic stratigraphy interpretation

    Dejan Radivojević (2018)
    U tekstu su prikazana dva osnovna pristupa u seizmostratigrafskoj interpretaciji. Prvi kao polaznu osnovu ima seizmičke sekcije, čija se interpretacija u kasnijoj fazi koreliše sa bušotinskim podacima. Drugi u prvoj fazi analizira podatke dobijene dubokim bušenjem koji se kasnije korelišu sa seizmičkim sekcijama. Prikazan je hronološki redosled i objašnjen postupak pri seizmostratigrafskoj interpretaciji oba pristupa. Ovakav način interpretacije omogućio je naftnim kompanijama detaljnije i preciznije sagledavanje geoloških odnosa, smanjenje rizika istraživanja i racionalnije projektovanje razradnih bušotina.
    seizmostratigrafija, istraživanje nafte i gasa, karakteristične seizmičke sekvence, seiz-mofacijalna analiza
    ... P. R. & Thompson S, Seismic stratigraphic and global changes in sealevel, part 2: The depositional seqence as a basic unit for strai- graphic analysis. In: Payton (Eds.), Seismic Strati- graphy: Application to Hydrocarbon Exploration, AAPG-Mem., 26, p 53-62. Tulsa, Oklahoma, 1977. [5] Piggot ...
    ... American Association of Petroleum Geologists, 33, 129-144. Tulsa, Oklaho- ma, 1984. [12] Veeken, P. C. H, 2007: Seismic Stratigraphy, Basin Analysis and Reservoir Characterisation, Seismic Exploration, Elsevier, 37, p 509, Amsterdam. D. RADIVOJEVIĆ RAZLIČITI PRISTUPI U SEIZMOSTRATIGRAFSKOJ ...
    ... more rational design of development wells. Key words: seismic stratigraphy, oil and gas exploration, operational seismic sequence, seismic facies analysis ...

  • 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

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... SQL Server Reporting Services and others. It is a system for direct analytical data processing implemented through Microsoft® SQL Server™ 2000 Analysis Services which supports multidimensional views of business data. The methodology has already been applied in the development of the first phase ...
    ... SQL Server Reporting Services, etc. Hence, it is a system for direct analytical data processing implemented through Microsoft® SQL Server™ 2000 Analysis Services, which supports multidimensional views on business data, using the technology of multidimensional or relational databases. Managers and ...
    ... Greece. Seidman, C. (2001). Data Mining with Microsoft SQL Server 2000. Redmond: Microsoft Press. Jacobson, R. (2001). Microsoft SQL Server 2000 Analysis Services. Redmond: Microsoft Press. ...

  • Geology of the southern part of the Sava-Vardar zone: new constraints from the Klepa Mts.

    Dejan Prelević, Ana Mladenović, Violeta Gajić, Milena Dunčić, Blažo Boev (2024)
    Tethys closure, Scaglia Rossa, intracontinental basalts
    ... calcified radiolarians, palynomorphs, inoceramids, as well as recf- fossil detritus transported to decper parts of thc basin). Biostratigraphical analysis indicates that the formation of Scaglia-type limestones in the Klepa Mountains began during the late Santonian. Our paleontological obscrvations ...
    ... Cretaceous tectonic evolution of the Sava — Klepa Massif, Republic of North Macedonia — Results from calcite twin based automated paleostress analysis. Tectonophysics, 758, 44 – 54. ...

  • Upper Cretaceous scaglia type limestone from Klepa Mts. (North Macedonia) - sedimentology and biostratigraphy

    Violeta Gajić, Milena Dunčić, Ana Mladenović, Dejan Prelević (2024)
    The research area is located in the central part of North Macedonia, in the area of the Klepa Mts. Based on sedimentological, micropaleontological and biostratigraphical investigations of samples from both the east and west side of the Klepa Mts., sedimentary rocks of the Upper Creaceous age are determined. During the latest Cretaceous, this area was dominated by the sedimentation of dominantly carbonate rocks with variable amounts of clastic components. From the tectonic point of view, investigated area belongs to the ...