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321 items
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Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x
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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... in Serbia: effects on sustainability Marija Živković, Dejan Ivezić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability | Marija Živković, Dejan Ivezić | Clean Technologies ...
... org/10.1007/s10098-021-02063-6 ORIGINAL PAPER Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability Marija Živković1 · Dejan Ivezić1 Received: 3 November 2020 / Accepted: 26 February 2021 © The Author(s), under exclusive licence to Springer-Verlag GmbH ...
... reduction of import dependency of DH systems of 9.8% and improved diversification of energy sources of 21%. * Dejan Ivezić dejan.ivezic@rgf.bg.ac.rs Marija Živković marija.zivkovic@rgf.bg.ac.rs 1 University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia http://orcid.org/0000-0003-2659-0662 ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
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Effects of Energy Production and Consumption on Air Pollution in Serbia
Marija Živković (2019)Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...... EFFECTS OF ENERGY PRODUCTION AND CONSUMPTION ON AIR POLLUTION IN SERBIA Marija Živković University of Belgrade-Faculty of Mining and Geology, Serbia, marija.zivkovic@rgf.bg.ac.rs Abstract: Energy production and combustion, mostly from unregulated or inefficient fuel combustion ...Marija Živković. "Effects of Energy Production and Consumption on Air Pollution in Serbia" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
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Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites
Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković. "Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites" in Science of Sintering (2023). https://doi.org/10.2298/SOS220512013S
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Assessments of effects of implementation of strategic plans for development of Belgrade District heating system
The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić. "Assessments of effects of implementation of strategic plans for development of Belgrade District heating system" in Sustainable Cities and Society, Elsevier BV (2020). https://doi.org/10.1016/j.scs.2020.102304
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Gornjopleistocenski glodari (Rodentia) iz pećine Baranica kod Knjaževca (istočna Srbija)
Katarina V. Jovanović (2005)Katarina V. Jovanović. Gornjopleistocenski glodari (Rodentia) iz pećine Baranica kod Knjaževca (istočna Srbija), Beograd:Rudarsko-geološki fakultet, 2005
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016-05-16)Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...... system selection. Saša M. Jovanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika;Fuzzy stochastic model of underground development system selection. | Saša M. Jovanović | Универзитет у Београду ...
... Saša M. Jovanović FUZZY STOHASTIČKI MODEL IZBORA SISTEMA OTVARANJA PODZEMNOG RUDNIKA Doktorska disertacija Beograd, 2016. UNIVERSITY OF BELGRADE FACULTY OF MINING AND GEOLOGY Saša M. Jovanović FUZZY STOCHASTIC ...
... рaдa Имe и прeзимe aутoрa Сaшa M. Joвaнoвић Брoj уписa Р 320 Студиjски прoгрaм Рудaрскo инжeњeрствo Нaслoв рaдa FUZZY СTOХAСTИЧКИ MOДEЛ ИЗБOРA СИСTEMA OTВAРAЊA ПOДЗEMНOГ РУДНИКA Meнтoр др Зoрaн Глигoрић, рeдoвни прoфeссoр Пoтписaни Сaшa M. Joвaнoвић изjaвљуjeм дa je штaмпaнa вeрзиja ...Saša M. Jovanović. "Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-16)
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Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude
Ivana M. Jovanović (2016-01-13)U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže... process Ivana M. Jovanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude;Model of intelligent adaptive control system for ore treatment process | Ivana M. Jovanović | Универзитет у Београду ...
... Ivana M. Jovanović MODEL INTELIGENTNOG SISTEMA ADAPTIVNOG UPRAVLJANJA PROCESOM PRERADE RUDE doktorska disertacija Beograd, 2015 UNIVERSITY OF BELGRADE FACULTY OF MINING AND GEOLOGY Ivana M. Jovanović MODEL OF INTELLIGENT ...
... veštačke neuronske mreže. I. Jovanović, MODEL INTELIGENTNOG SISTEMA ADAPTIVNOG UPRAVLJANJA PROCESOM PRERADE RUDE UNIVERZITET U BEOGRADU, RUDARSKO-GEOLOŠKI FAKULTET 178 Slika 93. Elementi razvoja VNM3 modela. I. Jovanović, MODEL INTELIGENTNOG SISTEMA ADAPTIVNOG ...Ivana M. Jovanović. "Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-01-13)
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Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)
Gordana M. Jovanović (2014-12-05)Rad obuhvata detaljnu studiju badenskih školjaka koje potiču sa terenajugoistočnog oboda Panonskog basena (Centralni Paratetis). Proučavani su lokaliteti naprostorima Srbije (Fruška gora, Golubac, okolina Beograda, Aranđelovca, Koceljeva,Loznica) i severoistočne Bosne (Ugljevik). Pored taksonomske analize i paleontološkihopisa bivalvija, u radu je dat i spisak revidovanih vrsta koje su do sada pronađene usedimentima badenskog kata istraživanog terena. Do sada je ukupno poznato 41familija, 108 rodova i 174 taksona. Identifikovano je 170 bivalvijskih vrsta, međukojima su neke prvi put konstatovane na ovim ...školjke, baden, Panonski basen (Centralni Paratetis), stratigrafija,paleoekologija, paleogeografija, paleobiogeografija... 0608). Категорија М 41 1. Јовановић, Г.: Српско Језеро. Издавач Природњачки музеј, 59 стр., 2012. (ISBN 978-86-82145-38-7). 2. Јовановић, Г., Ђурић, Д., Јовановић, М. Из света природе. Природњачки музеј, str. 24, 2011 (ISBN 978-86-82145-32-5). 3. Jovanović, G.: The badenian of the Golubac ...
... 1820-9521). 2. Jovanović, G., Jovanović, J.: Contribution to the knowleddge on Meotian and Pontian of the locality of Kusjak near Negotin (east Serbia).- Bulletin of the Natural History Museum in Belgrade A, vol. 47-50, pp. 205-216, 1992 ( ISSN 1820-9521). 3. Jovanović, G., Jovanović, J.: Tertiary ...
... grada, pored obale Dunava (Pavlović, 1903; Mikinčić, 1932; Spajić, 1975; 1977, Jovanović, 1996, Jovanović i Tomić (1997) (tabela 3). Iznad badenskih leže debele naslage kartarnih sedimenata (Mitrović i Jovanović, 2000), U neposrednoj blizini grada, otkriven je profil glinovito-laporovitih i ...Gordana M. Jovanović. "Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-05)
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Zavisnost sadržaja gvožđa, mangana, nikla, hroma i kobalta u olivinu od fizičko-hemijskih uslova postanka ultramafita i meteorita
Larisa Kolomajceva-Jovanović (1985)Larisa Kolomajceva-Jovanović. Zavisnost sadržaja gvožđa, mangana, nikla, hroma i kobalta u olivinu od fizičko-hemijskih uslova postanka ultramafita i meteorita, Beograd:Rudarsko Geološki Fakultet, 1985
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Tercijarne bazaltoidne stene u Srbiji
Milivoje M. Jovanović (2003)Milivoje M. Jovanović. Tercijarne bazaltoidne stene u Srbiji, Beograd:Rudarsko Geološki Fakultet, 2003
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Izučavanje procesa okrupnjavanja mlevenog krečnjakak radi primene u poljoprivredi
Vladimir D. JOVANOVIĆ (2016)Vladimir D. JOVANOVIĆ. Izučavanje procesa okrupnjavanja mlevenog krečnjakak radi primene u poljoprivredi, Beograd:Rudarsko Geološki Fakultet, 2016
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016)otkopavanje, otvaranje, mreže i grafovi, fuzzy skupovi, stohastički procesi, indeks konveksnosti, sistemi podrške odlučivannjuSaša M. Jovanović. Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika, Beograd:Rudarsko Geološki Fakultet, 2016
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Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude
Ivana M. Jovanović (2016)adaptivno upravljanje, ruda, prerada rude, flotacijska koncentracija, priprema mineralnih sirovina, modelovanjeIvana M. Jovanović. Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude, Beograd:Rudarsko Geološki Fakultet, 2016
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Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)
Gordana M. Jovanović (2014)Gordana M. Jovanović. Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis), Beograd:Rudarsko Geološki Fakultet, 2014
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Open Educational Resources in Serbia
... Resources in Serbia Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Open Educational Resources in Serbia | Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević | Current State ...
... dr.rgf.bg.ac.rs Chapter # - will be assigend by editors OPEN EDUCATIONAL RESOURCES IN SERBIA AUTHOR(s) - Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević Abstract: This chapter provides a review of open educational resources in Serbia. It covers different aspects ...
... journals and proceedings of scientific conferences, most of them in the area of human language technologies and more than 15 related to TEL. Marija Blagojević University of Kragujevac, Faculty of Technical Sciences Čačak Svetog Save 65, 32 000 Čačak marija.blagojevic@ftn.kg.ac.rs +38130302719 ...Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević. "Open Educational Resources in Serbia" in Current State of Open Educational Resources in the “Belt and Road” Countries, Springer Singapore (2020). https://doi.org/10.1007/978-981-15-3040-1_10
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Побољшање ефикасности одлучивања у рударству применом линеарних оптимизационих модела
Трајче Бошевски (2021)Одлучивање и управљање у рударству је захтеван и сложен задатак изложен ризицима. Конвенционални-искуствени приступи доношења одлука, у пракси често показују слабост која се огледа у недовољној поузданости и прецизности. Предмет истраживања докторске дисертације, под називом „Побољшање ефикасности одлучивања у рударству применом линеарних оптимизационих модела“ је да, сагледавањем научних метода линеарног програмирања, приступи формирању локацијских модела који би били засновани на анализи и прилагођавању постојећих и увођењу нових претпоставки за случајеве као што је експлоатација и потрошња кречњака. У дисертацији ...Трајче Бошевски. Побољшање ефикасности одлучивања у рударству применом линеарних оптимизационих модела, [Т. Бошевски], 2021
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Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... Измењено: 2023-10-14 04:10:08 Actual contamination of the Danube and Sava rivers at Belgrade (2013) Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić ...
... Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Actual contamination of the Danube and Sava rivers at Belgrade (2013) | Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić ...
... (282.243.743) Original scientific paper 1169 Actual contamination of the Danube and Sava Rivers at Belgrade (2013) MILAN D. ANTONIJEVIĆ1, MARIJA ARSOVIĆ2, JOSEF ČÁSLAVSKÝ3, VESNA CVETKOVIĆ4, PREDRAG DABIĆ4, MLADEN FRANKO5, GORDANA ILIĆ6, MILENA IVANOVIĆ7, NEVENA IVANOVIĆ8, MILICA KOSOVAC8 ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
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Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector
To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatoriBoban Pavlović, Dejan Ivezić, Marija Živković. "Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector" in Energy Policy, Elsevier BV (2020). https://doi.org/10.1016/j.enpol.2020.111936
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A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia
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 ...... Pavlović, Dejan Ivezić, Marija Živković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia | Boban Pavlović, Dejan Ivezić, Marija Živković | Energy ...
... Amulti-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia Boban Pavlović ∗, Dejan Ivezić, Marija Živković University of Belgrade, Faculty of Mining and Geology, Djusina 7, 11000 Belgrade, Serbia a r t i c l e i n f o Article history: Received ...
... tion, Project administration, Writing - original draft. Dejan Ivezić: Conceptualization, Formal analysis, Supervision Writing - Re- viewing & Editing. Marija Živković: Supervision, Visualization, Writing - Reviewing & Editing. Declaration of competing interest The authors declare that they have no known ...Boban Pavlović, Dejan Ivezić, Marija Živković. "A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia" in Energy Reports, Elsevier BV (2021). https://doi.org/10.1016/j.egyr.2021.02.072