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Упит dcterms_creator_txt:Wong How Kin

277 items

  • 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
    ... GIS-AHP multi criteria decision analysis for the optimal location of solar energy plants at Indonesia. Energy Rep (ISSN: 2352-4847). Saaty, T.L., 1990. How to make a decision the analytic hierarchy process. J Operat Res 48, 9–26. Seddiki, M., Bennadji, A., 2019. Multi-criteria evaluation of renewable energy ...

  • A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach

    Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (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 ...
    fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependability

  • 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
    ... gas pressure above or below normal, or the height of water in a pond above or below rest, or another variable such as potential. — 9%u - measures how forcefully the displacement is being changed Ox? Today, the wave equation is most commonly used in the design of sucker rod pumps and it is incorporated ...

  • Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians

    Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)
    orogeneza, oroklini, višesmerna ekstenzija, transkurentna kretanja, Srpski Karpati
    ... field with variable orientations that formed during the gradual clockwise rotation around the Moesian Platform (Mladenović et al., 2019). However, how such a variable stress field is linked with the mechanics of regional and local deformation during the clockwise Carpathians rotation and the formation ...
    ... roll-back and tearing: the eastern Mediterranean case. Earth Planet. Sci. Lett. 442, 93–107. Mladenović, A., Trivić, B., Cvetković, V., 2015. How tectonics controlled post-collisional magmatism within the Dinarides: Inferences based on study of tectono-magmatic events in the Kopaonik Mts. (Southern ...

  • The effect of finite driving rate on avalanche distributions

    Sonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević (2021)
    Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear Physics

  • Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study

    Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2023)
    Recently, nanocrystal dispersions have been considered as a promising formulation strategy to improve the bioavailability of the deuterated pyrazoloquinolinone ligand DK-I-56-1 (7‑methoxy-2-(4‑methoxy-d3-phenyl)-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one). In the current study, the freeze-drying process (formulation and process parameters) was investigated to improve the storage stability of the previously developed formulation. Different combinations of lyoprotectant (sucrose or trehalose) and bulking agent (mannitol) were varied while formulations were freeze-dried under two conditions (primary drying at -10 or -45 °C). The obtained lyophilizates were characterized in terms ...
    Pharmaceutical Science
    ... 496–504. https://doi.org/10.1016/j.xphs.2019.10.055. J.R. Mitrović et al. 'Trenkenschuh, E., Friess, W., 2021. Freeze-drying of nanoparticles: how to overcome colloidal instability by formulation and process optimization. Eur. J. Pharm. Biopharm. 165, 345–360. https://doi.org/10.1016/j.ejpb.2021 ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... cultural layer with specific properties and composition (Luo et al. 2012). The HMs contaminants in urban soils often originate from multiple sources (Wong, Li 2006), including natural (pedogenic processes) and various anthropogenic sources (atmospheric deposition of industrial and vehicle emissions, ...
    ... 2009] Ministarstvo Životne sredine i prostornog planiranja Republike Srbije, Beograd. http:/wWww.sepa.gov.rs/download/Stanje— zemljista.pdf. Wong, CSC., Li, XD., Thornton, I. 2006. "Urban environmental geochemistry of trace metals." Environ. Pollut. 142, 1-16. 10.1016/j.envpo1.2005.09.004. ...
    ... development goals, while maintaining social stability and protecting: environmental integrity. Regarding sustainable mining practices, the focus is on how mining companies, operating in a responsible and sustainable manner, can contribute to sustainable development at all levels. Mining companies are ...

  • Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules

    Svetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón (2024)
    The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...
    Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analiza

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... introduced, that is, words that often appear in professional literature. The developed dictionaries are not prescriptive, as they do not prescribe how the terminology “should” be systematized, but rather record the terms in use. Therefore, they feature synonyms and also record technical jargon and localisms ...

  • Polymorphism and photoluminescence properties of K3ErSi2O7

    Predrag Dabić, Marko G. Nikolić, Sabina Kovač, Aleksandar Kremenović (2019)
    alkalni silikati elemenata retkih zemalja, silikati lantanoida, polimorfizam, fotoluminescencija, kristalna struktura

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... work or environmental conditions; • Occurrence (O), which rates the likelihood that the failure will occur. Occurrence is related to reliability and how often a machine breaks down; • Detection (D), which rates the likelihood that the problem will be detected before it reaches the end user or customer ...

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • Еволуција напонског поља подручја Интерних Динарида у Србији током алпске орогенезе

    Ana S. Mladenović (2015-06-19)
    Циљ ове докторске дисертације био је реконструкција еволуције напонског пољаЗемљине коре у подручју Интерних Динарида у Србији током Алпске орогенезе.Истраживања за потребе решавања овог проблема су изведена у два дела. Првидео обухватао је анализу палеонапона на дефинисаном подручју истраживања,док се други део односио на анализу тренутно активног поља напона у овом делуБалканског полуострва. Истраживано подручје обухвата унутрашњи деоДинарског орогеног појаса, који се простире у централној и западној Србији. Собзиром на циљ истраживања, истраживано подручје је дефинисано тако даобухвата три ...
    Интерни Динариди, анализа палеонапона, фокални механизмиземљотреса, напонско поље, тектоно-магматски догађаји
    ... указују на 1 Ово поглавље засновано је на раду: Mladenović A., Trivić B., Cvetković V. 2015. How tectonics controlled post-collisional magmatism within the Dinarides: Inferences based on study of tectono- magmatic events in the Kopaonik Mts. (Southern ...
    ... Radiolarian assemblages in the cherts at Fushe Arrez and Shebaj (Mirdita area, Albania). Ofioliti 19: 313 – 318 Channell J.E.T. and Kozur H.W. 1997. How many oceans? Meliata, Vardar, and Pindos oceans in Mesozoic Alpine paleogeography. Geology 25: 183 – 186 Christofides G., Soldatos T., Eleftheriadis ...
    ... истраживач-сарадник. СПИСАК РАДОВА ПРОИСТЕКЛИХ ИЗ ДОКТОРСКЕ ДИСЕРТАЦИЈЕ Категорија М21  Mladenović, A., Trivić, B., Cvetković, V. 2015. How tectonics controlled post- collisional magmatism within the Dinarides: Inferences based on study of tectono-magmatic events in the Kopaonik Mts. (Southern ...

  • Еволуција напонског поља подручја Интерних Динарида у Србији током алпске орогенезе

    Ana S. Mladenović (2015-06-19)
    Циљ ове докторске дисертације био је реконструкција еволуције напонског пољаЗемљине коре у подручју Интерних Динарида у Србији током Алпске орогенезе.Истраживања за потребе решавања овог проблема су изведена у два дела. Првидео обухватао је анализу палеонапона на дефинисаном подручју истраживања,док се други део односио на анализу тренутно активног поља напона у овом делуБалканског полуострва. Истраживано подручје обухвата унутрашњи деоДинарског орогеног појаса, који се простире у централној и западној Србији. Собзиром на циљ истраживања, истраживано подручје је дефинисано тако даобухвата три ...
    Интерни Динариди, анализа палеонапона, фокални механизмиземљотреса, напонско поље, тектоно-магматски догађаји
    ... указују на 1 Ово поглавље засновано је на раду: Mladenović A., Trivić B., Cvetković V. 2015. How tectonics controlled post-collisional magmatism within the Dinarides: Inferences based on study of tectono- magmatic events in the Kopaonik Mts. (Southern ...
    ... Radiolarian assemblages in the cherts at Fushe Arrez and Shebaj (Mirdita area, Albania). Ofioliti 19: 313 – 318 Channell J.E.T. and Kozur H.W. 1997. How many oceans? Meliata, Vardar, and Pindos oceans in Mesozoic Alpine paleogeography. Geology 25: 183 – 186 Christofides G., Soldatos T., Eleftheriadis ...
    ... истраживач-сарадник. СПИСАК РАДОВА ПРОИСТЕКЛИХ ИЗ ДОКТОРСКЕ ДИСЕРТАЦИЈЕ Категорија М21  Mladenović, A., Trivić, B., Cvetković, V. 2015. How tectonics controlled post- collisional magmatism within the Dinarides: Inferences based on study of tectono-magmatic events in the Kopaonik Mts. (Southern ...

  • Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova

    Zoran M. Štirbanović (2015-07-01)
    Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...
    rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina
    ... metode ELECTRE II, Sixieme Conference Internationale de recherche operationnelle, Dublin, 1972. 12. J. P. Brans, Ph. Vincke, B.Mareschal, How to select and how to rank projects: The PROMETHEE method, European Journal of Operational Research, 24 (2), 1986, pp. 228- 238. 13. S. Rissino, G. Lambert-Torres ...

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... importantly at the international level, the creation of, monographs, textbooks, as well as scientific papers in the most important jJournals. This is how the declaration, often mentioned in science and especially by Jovan Cvijić, "we all climb on each other's shoulders in science" will be fulfilled ...
    ... previous generations of researchers. We, the actors and witnesses of the birth and first steps of CKH, keep in our memory these days, similar to how parents well remember the first steps of their children. Let's hope for a long life of the organization we belong to. 15 CKH prvih koraka CHK ...

  • Analiza softvera za projektovanje ESP sistema

    Aleksandar Sredojević (2024)
    U momentu kada pritisak na dnu bušotine nije dovoljan da savlada ukupne gubitke pritisaka od dna bušotine do separatora, proizvodnja pomoću ležišne energije nije više moguća i bušotina prestaje sa eruptivnim radom. Kako bi ponovo omogućili proizvodnju fluida iz bušotine, potrebno je primeniti neke od mehaničkih metoda eksploatacije. Najprimenljivije mehaničke metode eksploatacije su: gas lift (GL), dubinske pumpe sa klipnim šipkama (SRP), električne uronjene centrifugalne pumpe (ESP), zavojne pumpe (PCP) i hidraulične pumpe (HP). Jadna od tih metoda koja ...
    električna centrifugalna pumpa (ESP), proizvodnja fluida, mehaničke metode eksploatacije, Prosper, Pipesim
    ... Ufa State Petroleum Technological University — Faculty of Electrical Engineering and Electrical Equipment, Russian Federation; Kimaraz, Inc., „How Does an Electric Submersible Pump (ESP) Work“, URL: kimray.com (29.08.2024); Lea JF., (2007). Artificial lift selection 2007. „Chapter 10 in SPE ...

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... Clausthalite in coal.– International Journal of Coal Geology, 53, 219–225. doi: 10.1016/S0166­5162(03)00022­3 HUGGINS, F.E. & HUFFMAN, G.P. (2004): How do lithophile elements occur in or­ ganic association in bituminous coals?– International Journal of Coal Geology, 58, 193–204. doi: 10.1016/jcoal.2003 ...

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika