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Упит dcterms_creator_txt:Bechtel A. Gawlick Hans Jurgen

1522 items

  • Non-Detonating Chemical Mixture for Non-Invasive Methods of Rock Breaking

    Lazar Kričak, Milanka Negovanović, Nikola Simić, Stefan Milanović (2024)
    Within the Innovation developed several different non-detonating chemical mixtures for non-invasive methods of rock breaking. Laboratory and polygon tests gave the satisfactory results and knowledge enough to start the practical experiments in the field. The basis of this innovation is a theoretical assumption that certain chemical mixtures release a large quantity of gases during combustion. If these gases are found in the enclosed space a growing pressure on the walls of the chamber in which combustion takes place will ...
    non-detonating, chemical mixture, rock breaking, borehole pressure

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... WS4LR is the Serbian wordnet [11]. A wordnet is composed of synsets, or sets of synonymous words representing a concept, with basic semantic relations between them forming a semantic network. Each synset word or “literal” is denoted by a “literal string” followed by a “sense tag” which represents the ...
    ... The main goal in many geological research projects is no longer to create a single geologic map but rather a database, from which many types of geologic and engineering geology maps can be derived. This requires a database design or data model that is sufficiently robust to manage complex geologic ...
    ... from different sources. Vector data are more compatible with the relational database environment. They can be part of a relational table as a normal column and processes using a multitude of operators. The space required for storage and sharing of vector data is usually much smaller than the space ...

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... describe the Monte Carlo integration method we used. Let fbe a function, and /,,(/) the definite integral of that function: (7) hb, by — T(f)= JdX, dX)... JAN IM Kase XW =[PCOdx (8) a a a, on the region of integration: V a b a b a bn n� � � �[ , ] [ , ] [ , ]1 1 2 2 � (9) Monte Carlo approximation ...
    ... allowed, Smax [%], during a shift (or period). X S T X T Si n i n i i i i i � � � � �1 1 max (3) Also, all working bucket wheel excavators (BWE's) must mine coal during a period (or shift). This constraint (4) which guarantees a minimum production during a period, assumes that during ...
    ... of a quantity usually referred to as the objective function subject to a set of constraints which define the feasibility. In the operational mine scheduling, the decision to be made is which working benches should be mined. A decision variable (1) represents the i-th working bench and takes on a value ...

  • SrpELTeC: A Serbian Literary Corpus for Distant Reading

    Ranka Stanković, Cvetana Krstev, Duško Vitas (2024)
    U članku je predstavljen SrpELTeC, korpus razvijen u okviru akcije COST Distant Reading for European Literary History (CA16204). Svi romani u SrpELTeC-u su odabrani, pripremljeni i obeleženi korišćenjem zajedničkih principa uspostavljenih za sve jezičke zbirke u Evropskoj zbirci književnog teksta (ELTeC). Navedeni su izazovi i rešenja u pripremi SrpELTeC od nule. Svi romani su ručno kodirani u TEI sa bogatim metapodacima i strukturnim napomenama. Automatska anotacija je uključivala POS-označavanje, lematizaciju i imenovane entitete, oslanjajući se na resurse za obradu ...
    digital humanities, Serbian literature, text corpora, distant reading , linked data, named entity recognition, text analytics

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Knowledge and Rule-Based Diacritic Restoration in Serbian

    Cvetana Krstev, Ranka Stanković, Duško Vitas (2018)
    In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).
    diacritic restoration, morphological dictionary, corpus, word n-grams, local grammars
    ... considered as linguistic ontologies because they are based on real terms of a subject field (Will, 2012), (Clarke and Zeng, 2012). A term is defined as one or more words referring to a concept; a concept is considered as a unit of thought, regardless of the terms that express it (NISO, 2005). Contemporary ...
    ... ex.htm Proceedings of CLIB 2018 95 4. Specific Features of RuThes Structure The main unit of RuThes is a concept as a unit of thought regardless of words expressing it. A concept has a unique, unambiguous name. Concept names are similar to descriptors in information-retrieval thesauri, that is ...
    ... approach assumes that there is a sufficient training collection for learning the algorithms. However, many organizations have a need in automatic text categorization, when even a category system (system Proceedings of CLIB 2018 97 Figure 3: Security thesaurus terms found in a text. Brown and blue boxes ...

  • Дефинисање геотехничких параметара еолских седимената земуснког платоа на основу лабораторијских и теренских SPT испитивања

    Ђорђе Крзман (2024)
    Циљ овог рада је био да се одреде геотехничке караткеристике предметног терена што представља полазну основу за рационално пројектовање и градњу. Истражним бушењем утврђено је да предметни терен изграђују четри лесна хоризонта и три слоја погребене земље до дубине од 22-23 m. Лабораторијским испитивањем добијени су ефективни параметри смичуће чврстоће, где се кохезија најчешће креће између c’=14 и 18 kPa, а угао унутрашњег трења f'= 25 - 30 °. Теренска SPT испитивањем уз коришћење прихваћених корелација у геотехничкој пракси ...
    лес, лабораторија, SPT, корелације, параметри
    ... 0 2000 | 4000 6000 8000 10000 ~ 12000 5 · » k:d vad d 180 d i 1 2 ? r Ž A AA A—A Š Ž • ~s A _M —AA - A w> • 6 Fa A 'A.., i F r • • <7 s7 o 8 \C>> 8 > 9 F1 Ž 9 • • • ~ 10 A A l:[w • [1 • • 11 11 12 A 12 • • A _ MoaynenacrwuHocmw E (kPa) e „PNedrenirana kohezija Cu (kPa) /\pyrv xopM3oHT ...
    ... E S T I C - M A R S H TipauiHa neckoBMTa npauinHacTo-neckoBuTa rnMHa Silt, silly-esandy clay K B A P T A P - TI JJ EM CT OL IE H - Q, Q U A T E R N A R Y - P L E I S T O C E N E - Q, AJ TY BV IJ AJ IH O - B A P C K / A L L U V I A L - M A R S H JIMTOJIOHIKM ...
    ... UI KA C T A P O C T G E O L O G I C A L AG E, T E H E T C K M TV IT G E N E S I S o + [0] Tw-15 A \X v P E L I E H T H A R E C E N T T E X H O T E H M AR TI FI CI A! AnyBujanHe Hacnare dpauuje Alluvial deposits - flood facies A L L U V I A L TipauinHa ...

  • Application of ERT in the study of debris-flow source area: Case study Selanac debris flow

    Dragana Đurić, Jelka Krušić, Biljana Abolmasov (2021)

  • Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

    Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)
    A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...
    Ceria, Yttrium, Solid solution, Mechanosynthesis, Oxygen vacancy, Nanocrystalline material

  • Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić (2019)
    Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...
    мио-плиоценска геодинамика, јужни Панонски басен, Авалски и Торлак хорст, Белопоточки трог, Србија
    ... 1st Congress of geologists of Bosnia & Herzegovina, Tuzla October 21–23, 2015, Book of Abstracts, 48–49. RUNDIĆ, LJ., VASIĆ, N., ŽIVOTIĆ, D., BECHTEL, A., KNEŽEVIĆ, S. & CVETKOV, V. (2016): The Pliocene Paludina Lake of Pannonian Basin: new evidence from northern Serbia.‒ Annales Societatis Geologorum ...
    ... HORVÁTH, F., MUSITZ, B., BALÁZS, A., VÉGH, A., UHRIN, A., NÁDOR, A., KO- ROKNAI, B., PAP, N., TÓTH, T. & WÓRUM, G. (2015): Evolution of the Pan- nonian basin and its geothermal resources.‒ Geothermics, 53, 328–352. doi: 10.1016/j.geothermics.2014.07.009 IVKOVIĆ, A., VUKOVIĆ, A., NIKOLIC, J., KOVAČEVIĆ, D ...
    ... hill: Panoramic view of the Bučvar stream towards the NE (a), a view inside the stream valley (b), a detail of reddish conglomerates, light-brown coarse-grained sandstones in intercalation with green silt and clay (c, d). G eo lo g ia C ro a tica Rundić et al.: Stratigraphic implications of the ...

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides Nemanja Krstekanić a,b,*, Ernst Willingshofer a, Taco Broerse a, Liviu Matenco a, Marinko Toljić b, Uros Stojadinovic b a Utrecht University ...
    ... allows a detailed understanding of strain partitioning mechanisms during its Oligocene – middle Miocene evolution. We have chosen a strategy in the presentation of our results that involves first the description of a reference model with a simple analogue modelling setup, followed by a parametrical ...
    ... (structure 2) represents a thoroughgoing strike- slip system. This structure is characterized by a change in fault dip angle, from sub-vertical in the north to steeply eastward-dipping in the south (e.g., compare cross-sections a-a’, b-b’ and c-c’ in Fig. 3g), consistent with a southward increase of ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... viewed in a pop-up window, with a link to detailed data. Energies 2016, 9, 567 4 of 14 Figure 1. Main page of the Cadastre of Abandoned Mines of Vojvodina. (a) (b) (c) (d) Figure 2. Selection of (a) visible layers; (b) Search; (c) Legend and (d) Manual. Detailed information about a mine site ...
    ... between unrelated programs when sending or receiving pre-generated map imagery to users who have issued a request. Simply put, the WMS is a service by which the client can send a request to view a map from a server. This cartographic web service produces maps of georeferenced data by drawing them in the ...
    ... errors reporting a tool based on Bugzilla [29] is used, customized and maintained by the Faculty of Mining and Geology [12]. The user has the option to search the list of topics similar to the current problem, and report a new problem. It is necessary to define a title for the error, give a brief description ...

  • Утицај обртног магнетног поља на дерацемизацију кристала натријум-хлората

    М. Милојевић, А. Жекић, П. Дабић, Б. Вучетић, Б. Максимовић (2023)
    ... Crysf. Growth Des., 15 (2015) 5476–5484. [4] K. Suwannasang, A. E. Flood, C. Rougeot, G. Coquerel, Cryst. Growth Des., 13 (2013) 3498—3504. [5] M. M. Milojević, B. M. Vučetić, B. Z. Maksimović, O. R. Klisurić, M. M. Mitrović, A. A. Žekić, 4CS omega, 7 (2022) 47701— 47708. XXVIII Koudepennuja ...
    ... influence of a rotating magnetic field on the deracemization of sodium chlorate crystals from aqueous solutions saturated at temperature 7, =(31.0+0.1)"C. Crystals were nucleated and grown in a thermally insulated vessel filled with 20 ml of solution at temperature 7 =(26.0+0.1)"C „in a rotating ...
    ... Crysf. Growth Des., 15 (2015) 5476–5484. [4] K. Suwannasang, A. E. Flood, C. Rougeot, G. Coquerel, Cryst. Growth Des., 13 (2013) 3498—3504. [5] M. M. Milojević, B. M. Vučetić, B. Z. Maksimović, O. R. Klisurić, M. M. Mitrović, A. A. Žekić, 4CS omega, 7 (2022) 47701— 47708. 289 Conference of the ...

  • Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika

    Dragana Đurić, Jelena Vukčević, Dejan Vučković, Ivana Vasiljević, Vesna Cvetkov (2020)
    geofizika, geofizička istraživanja u arheologiji, arheologija u okolini Trstenika
    ... četiri godine. Lokaliteti U periodu od 2016. do 2019. go- dine u široj okolini Trstenika, a u okviru 31 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e sprovođenja terenske nastave, geofizič- ...
    ... a, u narednom tekstu. - Zahvaljujući magnetometrij- skim ispitivanjima područja Stragari, 33 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e ukupne površine oko 2,5 ha, izvrše- no je lociranje ...
    ... savremenog crkvišta, preuređenog od strane meštana (Стокић и др., 2017; Анђелковић и др. , 2019) 35 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e rovatno iz mlađeg perioda, pri čemu su nađene ...

  • Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin

    Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović (2014)
    menadžment podzemnih voda, monitoring, kvalitet podzemnih voda, bilans, baza podataka

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... as excel file (Image 3, front). A “phrase table”1 is a statistical description of a parallel corpus of source-target language sentence pairs, created during the training process. The frequencies of n-grams in a source language text that co-occur with n-grams in a parallel target language text represent ...
    ... is a file that contains paired Serbian and English words with a factor of accuracy for translation from Serbian to English and from English into Serbian. In the background of Image 3 GIZA++ program the output result of machine translation is shown as a “phrase table”, which is analysed in a custom ...
    ... speeds up the translator's work. Main key functions of a CAT tool that speed up and improve translation are: [11]  A CAT tool segments the source text in segments, usually sentences, and uses them to filter and preview the matching segments in a suitable way, usually in specific box, next to or below ...

  • 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
    ... the night, from Figure 3 a somewhat different situation can be seen. Namely, it is evident that specific sensitive receptors, numbered 1, 2, 3, 4, 7 and 8, in Zone 4 are in the area where there is a noise limit level for the night period, which amounts to 45 dB(A) for a residential area. The results ...
    ... With regard to wind farm projects, a so-called partial impact assessment can be carried out in the form of a special impact assessment and then incor- porated into a holistic approach in the consideration of interactions between the existing and planned purposes for a particular area in the SEA process ...
    ... conceptual stages of a planning proposal, while respecting the capac- ity of the space and involving the public in all phases of developing and adopting the SEA. In this context, SEA makes a significant contribution to the decision-making process with regard to the future development of a particular space ...

  • 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

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... Mineralogy, Based on Quantitative X-Ray Diffraction Methodos. 2005 World of Coal Ash, In- ternational Symposium, April 11–15, 2005, 1–14. ŽIVOTIĆ, D., BECHTEL, A., SACHSENHOFER, R., GRATZER, R., RADIĆ, D., OBRADOVIĆ, M. & STOJANOVIĆ, K. (2015): Reprint of „Petrological and or- ganic geochemical properties ...
    ... C ro a ti ca Geologia Croatica 69/3322 According to this classification, fly ash from PPNT A for May and June belongs to the aluminum-silicate group, and slag belongs to a silicate group, because the module is in the range of 2 to 6. Fly ash from PPNT B, PPKO A and PPKO B belongs to a silicate ...
    ... diffraction method cal properties, chemical and mineral compositions of the fly ash from thermal power plants (PP) „Nikola Tesla A” (NT A), „Nikola Tesla B” (NT B), „Kostolac „A” (KO A) and „Kostolac B” (KO B). The physical properties of the ash and slag facilitate their use as building materials for transport ...