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Упит dcterms_subject_txt:Izvozni tornjevi,Jugoslovenski standardi

497 items

  • Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara

    Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković (2020)
    Revitalizacija je proces ili skup tehničkih zahvata na mašini kojim se vrši zamena svih dotrajalih ili oštećenih delova metalne konstrukcije. Sastavni deo procesa revitalizacije je i modernizacija zastarele elektro-mašinske opreme. Principi revitalizacije sasvim sigurno nisu sadržani u okviru redovnog godišnjeg ili dnevnog održavanja. Oni predstavljaju održavanje onih veličina koje su značajne za mašinu kao celinu (u ovom slučaju rotorni bager). U ovom radu su analizirani rotorni bageri oznake SRs 1200. Na površinskim kopovima rudarskog basena Kolubara takvih bagera ima ...
    Rotorni bageri, revitalizacija, SRs1200

  • Osnove geotehničkog projektovanja prema ES-7 standardima – plitko i duboko fundiranje

    Rakić Dragoslav (2013)

  • Standard deviation of the geodetic quadrilateral point coordinates determined by the application of Hansens method

    Aleksandar Ganić, Aleksandar Milutinović, Zoran Gojković, Radenko Mikanović, Nebojša Vidanović (2015)

  • Standard deviations of coordinates due transformation between ellipsoids

    Ganić Aleksandar, Milutinović Aleksandar, Gojković Zoran (2017)

  • Using Metadata For Content Indexing Within An OER Network

    Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)
    ... IEEE 1484.12.1-2002 LOM Standard elements to DC, as a basis for delivering web services for educational resources. Namely, LOM Standard,provided by the Institute of Electrical and Electronics Engineers, is the leading educational metadata specification[10].The standard groups data elements to ...
    ... that is, containers for sets of identifiers. Namely, the BMP schema contains elements taken from standard namespaces with guidelines for metadata creation. In metadata specification, the standard nomenclature was used, enabling learning resources to be described and shared in a common way, ...
    ... namespaces, that is, containers for sets of identifiers. Namely, the BMP schema contains elements taken from standard namespaces with guidelines for metadata creation. In metadata specification, the standard nomenclature was used, enabling learning resources to be described and shared in a common way, and t ...

  • Standard deviation of the measuring points coordinates at directional boreholes by using average angle method

    Leković Branko, Ganić Aleksandar, Milutinović Aleksandar (2010)

  • Fines quality assessment in all-in aggregates for pavement layers related to different standard procedures

    Đokić Olivera, Nikolić Ivanović Mirjana, Tošović Simo, Stefanović Suzana, Milić Bratislav, Rosić Aleksandra ()

  • 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)
    ... enzyme for three hours and then applied on the sample plate with sinapic acid. Quantification of product LPC 16 : 0 using internal standard Concentration of internal standard LPC 14:0 (peaks atm/z=468.3 and m/z = 490.3) added in all samples was kept constant, 0.2 mg ml�1. The intensity of the peak c ...
    ... to peaks arising from internal standard. The mean signal-to-noise ratio of peaks corresponding to adducts of LPC 16 : 0 is used to calculate their concentration, following the equation: c(product) = (S/N of product peak)(c of int. std.)/(S/N of internal standard). In all cases we considered mass ...
    ... peaks corresponding to sodium adducts of product LPC 16 : 0 and internal standard LPC 14 : 0. Only signal to noise ratios (S/N) from the same mass spectra were compared for different compounds (product and internal standard) in order to calculate concentrations. The main values of concentration ...

  • Geofizičko reflektivno sondiranje kao test integriteta betonskog šipa

    Jovo Jakišić (2024)
    Temelj predstavlja izuzetno bitan element svakog građevinskog objekta. Zbog toga je neophodno poštovati odgovarajuće standarde, u projektovanju i izvođenju temeljne konstrukcije.Šipovi predstavljaju jedan od načina dubokog fundiranja tj. temeljenja. Za svaki izvedeni šip pojedinačno neophodno je izvesti kontrolu kvaliteta. Postoji više postupaka kojima je mogućeizvršiti kontrolu kvaliteta, a jedan od njih je test integriteta šipa malom silom, koji je prikazan u ovom radu.Ovaj postupak se izvodi seizmometrijskom metodom, postupkom refleksije, koji je definisan međunarodnim standardom ASTM D5882.Podaci koji su prikazani ...
    temelj, šip, seizmometrijska metoda
    ... da dobro odgovaraju na testiranje malom silom. ASTM D-5882 standard obuhvata opasne materije, postupke i opremu. Standard ne pokriva sve sigurnosne odredbe tj. nije povezan sa njihovom upotrebom. Odgovornost korisnika ovog standarda je da obezbedi zaštitu, prvu pomoć i da odredi primenljivost ...
    ... kroz postupak seizmičke refleksije na površini šipa, a sve u skladu sa ASTM D5882 standardom. Digitalni instrument koji vrši akviziciju podataka na terenu, PET (Pile Echo Tester) ispunjava sve zahteve ovog standarda. Cilj izvođenja kontorinih ispitivanja na šipovima je utvrđivanje integriteta izvedenih ...
    ... septembar 2024. godine Rezime Temelj predstavlja izuzetno bitan element svakog građevinskog objekta. Zbog toga je neophodno poštovati odgovarajuće standarde u projektovanju i izvođenju temeljne konstrukcije. Šipovi predstavljaju jedan od načina dubokog fundiranja tj. temeljenja. Za svaki izvedeni šip ...

  • Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2019)
    In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...
    NER, Named Entity Recognition Systems, Serbian, Personal Names
    ... produce the corpus of newspaper texts an- notated with personal names – the gold standard. Section 3 describes NER systems based on Ma- chine Learning methods that were trained on the corpus derived from the gold standard, while the evaluation and discussion of results are presented in Sections 4 and ...
    ... names of persons can be components of other NEs, e.g. organizations. 2.2 The Preparation of the Gold Standard The system presented in the previous section was used for the preparation of the gold standard – a large text sample annotated with personal names dubbed GOLDPERS. The sample consists of short ...
    ... four times which yielded “four levels” of gold standard. Between these repeated runs the devel- opment of SRPNER continued, as well as the en- hancement of e-dictionaries of Serbian. 3 Training Different NER Systems 3.1 Training Sets The gold standard GOLDPERS contains 9, 046 sentences, each one enclosed ...

  • 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

  • Compaction of Municipal Solid Waste

    Jovana Janković Pantic, Dragoslav Rakić, Tina Đurić, Irena Basarić Ikodinović, Snežana Bogdanović (2022)
    Regardless of the numerous activities undertaken to reduce municipal solid waste, its annual volumes continue to grow. In Serbia, the most common and the only one form of waste disposal is at municipal landfills with daily compaction and soil covering. Municipal waste compacting is one of the basic components of the disposal process. Well compacted waste takes up less volume and allows much safer storage. In order to better predict the behavior of municipal waste at landfills, it is ...
    compaction, hammer with spikes, landfill, municipal solid waste, proctor compaction test

  • 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
    ... hidrauličnih bagera na površinskim kopovima. In Proceedings of the VIII Međunarodna Konferencija OMC 2018, Zlatibor, Serbia, 17–20 October 2018; Jugoslovenski komitet za površinsku eksploataciju: Belgrade, Serbia; pp. 14–16. 26. Stevanovic, D.; Lekic, M.; Krzanovic, D.; Ristovic, I. Application of MCDA ...
    ... of the known fact that the machine must, above all, be available for operation, in order to realize other operating performance. American military standard (MIL-STD) Energies 2019, 12, 4044; doi:10.3390/en12214044 www.mdpi.com/journal/energies energies (mort, Article Development of the Availability ...
    ... of the known fact that the machine must, above all, be available for operation, in order to realize other operating performance. American military standard (MIL-STD) Energies 2019, 12, 4044; doi:10.3390/en12214044 www.mdpi.com/journal/energies Energies 2019, 12, 4044 2 of 18 defines availability ...

  • Geotechnical effects of municipal solid waste destruction with different compaction methods

    Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Gordana Hadži-Niković (2022)
    Disposal of waste in municipal solid waste landfills is the only way of waste disposal in Serbia, with daily compaction and covering with soil material. Due to less space for the construction of new landfills, it is necessary to use their maximum capacity. Well-compacted municipal solid waste takes up less volume and enables safer storage, so it is useful to previously determine the compaction parameters in the laboratory: maximum dry unit weight (γdmax) and optimal water content (wopt). In ...
    komunalni otpad, zbijanje, Proktorov opit, malj sa šiljcima

  • Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers

    Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović (2024)
    This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...
    korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd
    ... 2%-46.2% sand, and 52.5%-55.4% gravel. The basic compaction characteristics were determined by the standard and modified Proctor com- paction tests in accordance with the SRPS EN 13286-2:2012 standard. The tests were performed by com- pacting the prepared samples in a cylindrical mold with a diameter ...
    ... shown that the laboratory CBR, can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modified Proctor compaction tests. Comparative tests revealed that there is good correlation between the field CBR, and the deformation modulus ...
    ... on a pavement foundation layer (subgrade) built of gravel material, as follows: The CBR,,, parameter is correlated with the parameters of the standard and modified Proctor compac- tion tests (pqis dry bulk density, w is water content). The field dynamic California Bearing Ratio (CBR.p) parameter ...

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... surface of ash. International standard ASTM C 311 describes the procedures of chemical and physical methods for characterization of fly ash, and standard ASTM C 618 provides chemical and physical criteria related to classification. Based on the international standard ASTM C 618, chemical conditions ...
    ... content CaO (SiO2+Al2O3+Fe2O3) > 70 (%) The main flaw of ASTM standard is that it does not take the content of CaO into consideration, which significantly affects the pozzolanic properties of fly ash. Amendment of this, standard was proposed by McCarthy (1994). Table 4 Classification of fly ...
    ... the length (L) 116 mm, and specially prepared in a standard mold by Proctor procedure in three layers. These samples were cured in a wet chamber for 28 days. Indirect tensile strength – Brazilian experiment, was done according to the standard EN 13286-42 [19]. 2.4.3 The modulus of elasticity ...

  • P-T analiza RMU Bitola – krupne klase

    Nemanja Dobrosavljević (2024)
    Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...
    ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans
    ... Priprema mineralnih sirovina, RGF Beograd, 2001. Pavlica J., Deušić S., Lazić P., Novi postupak čišćenja uglja u teškoj sredini, Drugi Bugarsko-Jugoslovenski simpozijum, Sofija 1997, 133-137. . Deušić S., Lazić, P., Mašine i uređaji u pripremi mineralnih sirovina 1, RGF Beograd, 2013. Lazić P., ...
    ... sampling the pit coal and dividing it into segments for further analysis, an analysis of its granulometric composition was performed, using standard and non- standard sicves with the following opening diameters: 60; 31.5; 16; 5; 0.5; 0.25; 0.125 and 0.00 mm. After measuring the size classes, the results ...
    ... proizvoda tj. sortimana određene krupnoće. Upravo su rasponi klasa krupnoće utvrđeni standardom SRPS B.HO.001 koji potiče još iz 1967. godine. Sortimani ugljeva prikazani su u tabeli broj 2 a kreirani su po standardu SRPS B.HO.001. Tabela 2. Sortimani ugljeva Sortiman Kameni [17] MOO 3 Sušeni ugalj ...

  • 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
    ... 1:500 000 урaђену према стандардима иницијативе ОneGeologyEurope. Креирано је више јавно доступних веб сервиса: један WMS (Web Map Service) и два WFS (Web Feature Service), којима су приказане геолошке јединице и основне геолошке структуре која задовољавају прописане стандарде. Коришћењем eXows (eXtended ...
    ... 1:500 000 урaђену према стандардима иницијативе ОneGeologyEurope. Креирано је више јавно доступних веб сервиса: један WMS (Web Map Service) и два WFS (Web Feature Service), којима су приказане геолошке јединице и основне геолошке структуре која задовољавају прописане стандарде. Коришћењем eXows (eXtended ...
    ... (eXtended OGC Web Services) пакета се остварује конекција локалних веб сервиса са метаподацима, обезбеђује вишејезичност система и сагласност са стандардима ОneGeologyEurope и INSPIRE. Кључне речи OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем УВОД Основна ...

  • Značaj izvodjenja Proktorovog opita na komunalnom otpadu

    Jovana Janković, Dragoslav Rakić, Tina Đurić, Irena Basarić Ikodinović, Laslo Čaki (2019)
    Komunalni otpad predstavlja jedan od ključnih problema današnjice. U Srbiji je najčešći vid odlaganja otpada na komunalne deponije i zbog toga je bitno ispravno i sigurno ga skladištiti. Zbijanje komunalnog otpada predstavlja jednu od osnovnih komponenti procesa odlaganja. Kako bi se što bolje predvidelo ponašanje komunalnog otpada neophodno je pre zbijanja na terenu laboratorijski odrediti maksimalnu suvu zapreminsku težinu i optimalnu vlažnost. U dosadašnjoj praksi u svetu za to se koristi standardizovan Proktorov opit. U radu će biti prikazani ...
    komunalni otpad, zbijanje, deponija, Proktorov opit
    ... in the terrain, for which Standard Proctor test has been used in the world current practice. This paper presents the results of the Proctor test for municipal waste taken from the dump in Plandište. KEY WORDS: municipal solid waste (MSW), compaction, landfill, Standard Proctor test UVOD kako bi ...
    ... Energija zbijanja za ovako izveden opit iznosi 600kJ/m3 alnog otpada. 443 Slika 2: Rezultati Standardnog Proktorovog opita Figure 2: Results of the Standard Proctor Test Na uzorku U- suva zapreminska težina d=13.39 kN/m3, pri optimalnoj vlažnosti opt=19.30 %. Uzorak U- 3 ima maksimalnu suvu zapreminsku ...

  • The Dictionary of the Serbian Academy: from the Text to the Lexical Database

    Ranka Stanković, Rada Stijović, Duško Vitas, Cvetana Krstev, Olga Sabo (2018)
    In this paper we discuss the project of digitization of the Dictionary of the Serbo-Croatian Standard and Vernacular Language. Scanning and character recognition were a particular challenge, since various non-standard character set encoding was used in the course of the almost 60-year long production of the dictionary. The first aim of the project was to formalize the micro-structure of the dictionary articles in order to parse the digitized text of and transform it into structured data stored in relational lexical database. This approach ...
    computer lexicography, lexical database, language resources, dictionary, Serbian language
    ... this paper we discuss the project of digitization of the Dictionary of the Serbo-Croatian Standard and Ver- nacular Language. Scanning and character recognition were a particular challenge, since various non-standard character set encoding was used in the course of the almost 60-year long production of ...
    ... parse the digitized text of and transform it into structured data stored in relational lexical database. This approach is compatible with several standard structured forms and ontologies (TEI, LMF, Ontolex, LexInfo). A lexical database mod- el was designed in compliance with these structured forms, following ...
    ... hy, lexical database, language resources, dictionary, Serbian language 1 Introduction The first volume of the Dictionary of the Serbo-Croatian Standard and Vernacular Language (re- ferred to as the Dictionary of Serbian Academy or DSA), prepared and compiled by the Institute for the Serbian Language ...