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Упит dcterms_subject_txt: MICP process

479 items

  • Surface functional groups and degree of carbonization of selected chars from different processes and feedstock

    Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)
    The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...
    Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS
    ... surface area. This classification by the type of production process is found for most of the results obtained in this study, but for some methods there are considerable differences between the chars made with the same type of charring process. Chemical analyses show a much more individual character ...
    ... Charring temperature, heating rate and feedstock selection are key factors for the properties of biochars [47]. It was found that during the process of carbonization, the type of char changes over sev- eral steps from nearly unaltered feedstock to turbostratic graphitic carbon with increasing ...
    ... made from beech (Fagus spec.) wood pieces (< 30 cm) that where dried to a water content of 15-18% and pyrolized at 550 "C by use of the Degussa process in a retort with a pyrolysis time of typically 16–20 hours [67,69]. The large pieces were crushed and sieved. The size fraction between 0.125 and ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... conference Terminology and Artificial Intelligence 2015 (Granada, Spain) 81 grip with problems of disambiguation and MWUs (Sag et al., 2002). 2 Process description The processing steps (Fig.1) of integrating new terms from specific domains in terminological dictionaries using lexical resources ...
    ... existing dictionary of simple words is used to improve prediction. Figure 4: Relation between word endings and inflectional FST classes The process of automatic prediction of inflec- tional FST class for a new entry follows a hybrid approach: one part is rule-driven with explicit codification ...
    ... . Moreover, entries for morphological e-dictionary of MWUs can be produced only from correct MWU lem- mas. Finally, as a byproduct of the whole process MWU inflectional classes for newly retrieved MWUs are obtained – they are derived directly from local grammars used for their extraction. 4.3 ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... specific human or hardware requirements, relying on EN ISO 19115 and EN ISO 19119 [3]. The GeoMine (USA) geoportal supports the decision-making process in connection with activities related to surface mining of coal by improving access to data, timely dissemination of data and understanding of ...
    ... includes information on abandoned mines that are in need of remediation, and the mines which were recultivated, that is, where the remediation process was completed [5]. U.S. Geoscience Information Network, USGIN is the federal framework for the exchange of information using the free and open ...

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geotermalna karakterizacija sistema / Conceptual model of hydrothermal system of Brus area - system geothermal characterization

    Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović (2024)
    Postavljeni konceptualni model hidrogeotermalnog sistema Brusa sa širom okolinom testiran je primenom različitih hidrohemijskih i izotopskih metoda u cilju njegove verifikacije i karakterizacije. Rezultati su ukazali na atomsfersko poreklo geotermalnih fluida i na razviće primarnih rezervoara u okviru karbonatnih stena. Prvi rezervoar formiran je u okviru krečnjaka gornjotrijakse starosti, dok drugi rezervoar egzistira u okviru trijskaih mermera. Zone prihranjivanja locirane su u zapadnom delu terena. Sistemi gravitacionih raseda kontrolišu kretanje fluida u sistemu, dok proces jonske izmene dominira u ...
    hidrogeotermalni sistem, hidrohemijske i izotopske metode, mladi intruzivi

  • Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage

    Maja Milošević, Biljana Đorđević, Alena Zdravković (2021)
    ... materials and the final function of the product is closely connected, when material dictates technique. Production of pottery and the manufacturing process is yet to be closely investigated. References Djordjević, B. 2021. Ražanjsko crepuljarstvo. Izrada crepulja u Rujištu kod Ražnja. Ražanj 2021 ...

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... for system protection. 47 • CONCLUSION Designing a sucker rod pump system is a complex process that requires careful consideration of various technical and economic factors. Key aspects of this process include selecting ı the appropriate type of the pump, accurately determining the required ...
    ... pressure and the suction pressure is known as the pumping pressure, which represents the increase in the fluid's potential energy [3,4]. During the process of oil extraction from wells using rod pumps, various forces act on the downhole components: 1. Buoyant Force (Archimedean Force) This force acts ...
    ... special surface treatments. This is crucial, as even minor damage or deformation can lead to leakage, thereby reducing the efficiency of the pumping process. For new valves of different diameters, the deviation of the ball's shape from ideal sphericity must not exceed 1 to 4 nm. [3,11] Figure 3.2 ...

  • ‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions

    Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban (2020)
    Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...
    Firing, Glaze, Traditional ceramics, Provenance studies, Augite

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... application, that is organised in several categories: Journal for criminalistics and right, Archibald Reiss, Doctoral Dissertation, and other (final process). Further classification is possible, so categories can contain subcategories, to achieve better organisation of digital objects. For each category ...
    ... evidence presentation, judge's direction, police cautions, police testimonies in court, summing up to a jury, interview techniques, the questioning process in court and police interviews, etc. Generally speaking, any text or item of spoken language can potentially be a forensic text when it is used in ...
    ... document collection organised in several categories: Journal for criminalistics and right, Archibald Reiss, Doctoral Dissertation, and other (final process). Various methods for improvement of keyword based simple search is demonstrated on text prepared for text analysis and terminology extraction. ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... Al-Otaibi M.B. (2006) Building inferential estimators for modeling product quality in a crude oil desalting and dehydration process, Chemical Engineering and Processing: Process Intensification, Volume 45, Issue 7, 568-577. Abilov F.A., Orudjev A.G., Lange R., (1999) Optimization of oil-containing ...
    ... characteristics and reserves in order to show the importance of this oilfield. It has been found that major problems accompanying the production process at the Amal oilfield are paraffin deposition, occurrence of layer sand, inefficient operations of Gas Lift System, inefficient oil desalination ...
    ... for Gas Lift Operations. The originality of the model reflects in the fact that environmental aspects of the functioning of the oil production process have been exactly introduced into it and measures based on algorithms for the decrease of impact on the environment have been proposed. Regarding ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... Al-Otaibi M.B. (2006) Building inferential estimators for modeling product quality in a crude oil desalting and dehydration process, Chemical Engineering and Processing: Process Intensification, Volume 45, Issue 7, 568-577. Abilov F.A., Orudjev A.G., Lange R., (1999) Optimization of oil-containing ...
    ... characteristics and reserves in order to show the importance of this oilfield. It has been found that major problems accompanying the production process at the Amal oilfield are paraffin deposition, occurrence of layer sand, inefficient operations of Gas Lift System, inefficient oil desalination ...
    ... for Gas Lift Operations. The originality of the model reflects in the fact that environmental aspects of the functioning of the oil production process have been exactly introduced into it and measures based on algorithms for the decrease of impact on the environment have been proposed. Regarding ...

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... covering or due to the advanced stage of decomposition), which is typical for an old waste and represents already formed landfills in which the process of biodegradation is in advanced stage. [50/ sm 200 820 [10 [0] landfill o Ada Huja |D Novi Sad |omixed waste. unclass, (fines) ...
    ... content of municipal waste has a significant impact on its geotechnical characteristics, and it is of particular importance during the planning process of its further processing (for example · combustion, composting), as well as for transport organization and temporary storage. It is defined ...

  • Грешка инклинације код депозиционе реманетне магнетизације

    Mirko Petković, Vesna Cvetkov (2019)
    ... and rotational movement of blocks, as well as non-matching of magnetostratigraphic scales. Experimental investigations of the re-deposition process, on mathematical models, showed that there was a change in the inclination of the depositional remanent magnetization, that is, that the inclination ...
    ... magnetization can be determined by measuring the anisotropy of the remanent magnetization of the individual minerals in the sample. Since this process requires weeks of laboratory testing and the use of a large number of instruments, much faster, numerical, techniques are developed. One of them ...

  • Combining Heterogeneous Lexical Resources

    Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić (2004)
    development of lexical resources, morphological dictionaries, WordNet
    ... some information (for instance, glosses) etc. Besides that, this tool enables the integration of a with bilingual word list in the development process, which can help in the translation of literal strings and in the checking of the existing cross- language relations. Various editing tasks can ...
    ... dictionary the whole funcionality of WN can not be achived. They, however, contribute to the functionality of Serbian MD. 5 Conclusion The process described in this paper has proven beneficial for both kinds of the resources. However, we should point some problems in its application. First ...

  • Digitalizacija u rudarstvu: Kreiranje sistema za efikasno poslovno izveštavanje

    Stevan Đenadić, Aleksandar Mirković, Veljko Rupar (2024)
    Proces donošenja odluka u oblasti rudarstva i geologije uslovljen je blagovremenim posedovanjem kvalitetnih podataka i informacija. Kompleksnost rudarskih procesa nalaže prikupljanje podataka na dnevnom odnosno na smenskom nivou. Podaci kao takvi bez analitičkog pristupa nisu dovoljni. Kako bi pristup podacima bio brz i efikasan neophodno je posedovanje adekvatnog digitalnog rešenja uz adekvatne centralizovane baze podataka. U ovom radu je dat pregled trenutne pozicije rudarstva sa aspekta digitalne transformacije kao i predlog jednostavnog prototipa u obliku digitalnog sistema za poslovno ...
    rudarstvo, digitalna transformacija, baze podataka
    ... sistema za poslovno izveštavanje i analitiku. Ključne reči: rudarstvo, digitalna transformacija, baze podataka. Abstract The decision-making process in the field of mining and geology is conditioned by timely access to quality data and information. The complexity of mining processes requires data ...

  • Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian

    Ranka Stanković, Branislava Šandrih, Cvetana Krstev, Miloš Utvić, Mihailo Škorić (2020)
    The training of new tagger models for Serbian is primarily motivated by the enhancement of the existing tagset with the grammatical category of a gender. The harmonization of resources that were manually annotated within different projects over a long period of time was an important task, enabled by the development of tools that support partial automation. The supporting tools take into account different taggers and tagsets. This paper focuses on TreeTagger and spaCy taggers, and the annotation schema alignment ...
    Part-of-Speech tagging, lemmatization, corpus, evaluation, Serbian, morphological dictionary
    ... taggers. The main goal was to automate the process of an- notation schema harmonization and preparation of training datasets as much as possible. The corpus of training set texts needed checking and cor- rection. Corpus correction is a time consuming process, which requires a lot of manual intervention ...
    ... lemmas of adjectives were represented in SMD using their definite form which is predominantly used (e.g. počasni ‘honorable’); the use of SMD to process various texts revealed that many of these ad- jectives are used in indefinite form as well, and the representation of adjective lemmas in SMD was ...

  • BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations

    Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina (2023)
    Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...

  • Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike

    Мирослав Црногорац, Душан Даниловић, Лола Томић (2020)
    ... control influences the implementation of management knowledge, through three dimensions: Knowledge acquisition process (Sig. 0.010), Knowledge conversion process (Sig. 0.023), and through the process of applying knowledge (Sig. 0.029). Keywords: Locus of control, human resources, knowledge management. ...
    ... handbook. Chapter 5: The Fischer-Tropsch process. USA: Speight, J.G. [3] De Klerk, A. (2013). Kirk – Othmer Encyclopedia of Chemical Technology. Chapter: The Fischer-Tropsch process. Weinheim: Wiley-VCH. [4] Martin, M.M. (2017). Industrial chemical process analysis and design. Elsevier Ltd. [5] ...
    ... ions/incoming-goods-outgoing-goods (posećeno maja 2020.) [9] Sunol, H., Warehouse Operations: Optimizing the Receiving Process, https://articles.cyzerg.com/receiving-process-optimization-warehouse- operations (posećeno maja 2020.) Preduzetništvo, inženjerstvo i menadžment ...

  • An Approach to Efficient Processing of Multi-Word Units

    Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas (2013)
    Efficient processing of Multi-Word Units in the course of development of morphological MWU dictionaries is not easy to achieve, especially when languages with complex morphological structures are concerned, such as Serbian. Manual development of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word units. In addition to that, we developed a procedure aimed at making ...
    Natural Language Processing, Grammatical Category, Lexical Representation, MWU, multi-word unit
    ... complex morphological structures are concerned, such as Serbian. Manual develop- ment of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word ...
    ... nominative case form. Consequently, it can be deduced that only the basic structure adjective/noun applies here. Of course, not all MWUs are so easy to process. For instance, for the MWU živa rana ‘open wound’ a dictionary look-up offers several possibilities (Table 1). Thus there are five possible MWU ...
    ... be expected, it has been already shown that the MWU dictionary can also be very use- ful in text disambiguation [1], and further in the parsing process [22]. We would like to point out another interesting aspect of MWUs which can be exploited in the processing of named entities, as the initial phase ...

  • Srbija u OneGeology Europe

    Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić (2014)
    Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...
    OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем
    ... language, as well as systems for data management were implemented in accordance with the OpenGIS (OGS) standards and guidelines. Thus, the process of generating geologic unit 1G-E map, based on the 1:500,000 included the following activities: 1. Generalization of the geological units catalog: ...
    ... 1G-Edictionaries entries. Table 1, shows an example of a generalization unit. At the initial map 1:500,000, there were 159 geological units. The process of generalization produced a new classification scheme, with only 39 geological units. Left map in figure 4, presents the polygons with the geological ...
    ... and data language, as well as systems for data management were implemented in accordance with the OpenGIS (OGS) standards and guidelines. Thus, the process of generating geologic unit 1G-E map, based on the 1:500,000 included the following activities: 1. Generalization of the geological units catalog: ...