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775 items
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Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic
Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...... B6 in B, and C1 to C5 in C. At the second level of synthesis, A, B and C parameters are synthesized into the M (Figure 4).Energies 2020, 13, x 9 of 15 Figure 4. Hierarchical structure of fuzzy composition. Partial indicators of optimal method of selection, A, B and C, are presented as membership ...
... Maximum operating volume (m3/d) 1069 7124 2672 5343 801 Typical operating temperature (°C) 38–177 38–135 38–121 38–121 24–66 Figure 1. The schematic diagram of the fuzzy model. Parameters (B and C) are exact data and are measurable, while (A) parameters can be presented according to the experience ...
... 18–5343 53–712 18–1781 0.89–392 Maximum operating volume (m3/d) 1069 7124 2672 5343 801 Typical operating temperature (◦C) 38–177 38–135 38–121 38–121 24–66 Maximum operating temperature (◦C) 288 204 260 204 121 Corrosion handling Good to Excellent Good Excellent Good to excellent Fair Gas handling Fair ...Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic" in Energies, MDPI AG (2020)
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Using Lexical Resources for Irony and Sarcasm Classification
The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...... ?b) (?b near_antonym: ?c) -> (?a swn:irony ?c)]" "[rule2: (?a swn:similar_to ?b) (?b near_antonym: ?c) -> (?a swn:irony ?c)]" "[rule3: (?a swn:also_see ?b) (?b near_antonym: ?c) -> (?a swn:irony ?c)]" "[rule4: (?a swn:verb_group ?b) (?b near_antonym: ?c) -> (?a swn:irony ?c)]" 8Total number of synsets ...
... to ?c) (?c near_antonym:?d)->(?a swn:irony ?d)]" "[rule31: (?a swn:synonym ?b)(?b swn:also_see ?c) (?c near_antonym:?d)->(?a swn:irony ?d)]" "[rule41: (?a swn:synonym ?b)(?b swn:verb_group ?c) (?c near_antonym:?d)->(?a swn:irony ?d)]" "[rule51: (?a swn:synonym ?b)(?b swn:bee_in_state ?c) (?c near_antonym: ...
... converting OWL rules into the Jena rules format. "[rule5: (?a swn:bee_in_state ?b) (?b near_antonym: ?c) -> (?a swn:irony ?c)]" "[rule6: (?a swn:hyponym ?b) (?b near_antonym: ?c) -> (?a swn:irony ?c)]" If we look at the rules from the set {rule2, . . . , rule6}, it can be noticed that each rule can ...Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković. "Using Lexical Resources for Irony and Sarcasm Classification" in Proceedings of the 8th Balkan Conference in Informatics (BCI '17), New York, NY, USA, : ACM (2017). https://doi.org/
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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 ...... µS(n)). (9) (ii) The membership functions can form C= n3 combinations among themselves. Each combination Ac represents practically one possible assessment Ai(8). Ac = [ µR( j=1, ..., n),µM( j=1, ..., n),µS( j=1, ..., n) ] , (10) for each c = 1 to C. (iii) If only values that satisfy the condition ...
... where O ≤ C). Each outcome has the corresponding values (iv) and (v) that further identify it for the estimate. (iv) Below, for each combination c that satisfies the condition of the outcome, the Jc value is calculated and rounded as an integer, in the following way: Jc = [( wRi · j(µR)c ) + ( ...
... the results are shown in Tables 4 and 5. Table 4. Results of questionnaire for new machines. Analyst B1-N B2-N B3-N ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ 1. R 0.7 0.3 0.8 0.2 0.6 0.4 M 0.4 0.6 0.7 0.3 0.5 0.5 S 0.3 0.7 0.6 0.4 0.6 0.4 2. R 0.6 0.4 0.6 0.4 0.3 0.7 M 0.6 0 ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
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Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals
Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043
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Geotermalni potencijal pliocensko-kvartarnih sedimenata na teritoriji opštine Zemun
Matija Zorić (2024)Grad Beograd se nalazi na području koje je izuzetno bogato podzemnim vodama i hidrogeotermalnim resursima. Najveće količine podzemnih voda akumulirane su u okviru aluvijalnih peskovito-šljunkovitih sedimenata i krečnjaka tortonsko-sarmatske starosti. Opština Zemun ima najveći geotermalni potencijal od svih Beogradskih opština, čak 57.7% od ukupnog potencijala celog grada Beograda. Master rad je fokusiran na istraživanju i analizi poznatih tehničkih sistema, kao i termotehničkih sistema koji su u upotrebi na teritoriji opštine Zemun. Tehnički sistemi se odnose na istražno-eksploatacione bunare koji nemaju ...... godišnja temperatura vazduha u Zemunu iznosi 12.5 "C, dok se prosečne temperature vazduha i padavine u Zemunu mopgu videti na slici 4. 40 "C 100 mm _—__–~ – – 30"%C 30"C ~ ~ 30 "C 75 mm 20 *C 10 *C 50 mm O?C 25 mm -10 "C -20 *C omm | Padavine — Prosečni dnevni maksimum — · ...
... resurse niske entalpije (temperatura fluida ispod 100 "C), zbog čega Je došlo do detaljnije podele ovih resursa (Milenić, Vranješ 2015): • sub(hidro)geotermalna energija ( < 30 *C ) • (hidro)geotermalna energija u užem smislu ( 30 "C - 100 ?*C ) Hidrogeotermalna energija se pri nižim temperaturama ...
... _ _ _ _ __ _B A/ \E IĆ } |_ _ _ _ _ _ _ _ _ B : G C E C| L ı a —— — Po lj op ri vr ed ni fa k. A a u — — Ba ta jn ic a 1 |_ __ __ __ __ __ Kl :F ic iu a{ {e -y % | _ _ _ _ _ _ _ _ _ _ B : F \ c C i u { e : k ) z ı a — — Ba nk a bi lj ni h ...Matija Zorić. Geotermalni potencijal pliocensko-kvartarnih sedimenata na teritoriji opštine Zemun, 2024
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Analiza primenjenih metoda za transport parafinske nafte
Dunja Milojević (2024)Sadržaj parafina u nafti ima dominantan uticaj na svojstva parafinskih nafti. Taloženje parafina, odnosno taloženje čvrstih čestica parafinskog voska, predstavlja ozbiljan globalni problem tokom proizvodnje i transporta sirove nafte. Samo taloženje voska zavisi od termodinamičkih faktora, poput temperature, pritiska i sastava nafte. Transport nafte cevovodima je uobičajeni proces transporta u naftnoj industriji. Kada prilikom cevovodnog transporta parafinske sirove nafte, dođe do prekida protoka i hlađenja nafte ispod temperature stinjavanja, parafini će kristalisati, pri čemu će doći do, geliranja celokupne transportovane ...... bar ı ambijentalna temperatura 15 "C), alkani sa manje od 5 atoma ugljenika se nalaze u gasovitom stanju ( metan -– CHx, etan - C,He . propan - CaHg , butan - C,MHyo ), alkani sa 5 do 15 atoma ugljenika se nalaze u tečnom stanju ( pentan -CsHy> ; penta-dekan C,5sHy>), a alkani koji imaju preko ...
... Najniža temperatura na dubini ukopavanja naftovoda je 18%C. Neobrađena nafta ima na 18%C prividni viskozitet 0,60 Pas, dok obrađena nafte ima prividni viskozitet 0,1 Pas. Nafta se u postupku obrade zagreva do 90-95"C i hladi brzinom 0,6 "C/min, do temperature od 189C. (Prstojević, Cevovodni transport ...
... alkan koji je pri normalnim uslovima u čvrstom stanju je n- heksa-dekan (C,,Hya- tačka topljenja 18%C ). (Prstojević, Priprema nafte, gasa i ležišnih voda, 2012) Većina parafina pronađenih u naftama nalazi se u rasponu od C,yg — Ces (Stubsjgen, 2013, str. 19) Tačka ključanja parafinskih ugljovodonika ...Dunja Milojević. Analiza primenjenih metoda za transport parafinske nafte, 2024
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Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia
Dejan Ivezić, Marija Živković (2023)Finalna potrošnja energije u industrijskom sektoru čini skoro 25% finalne potrošnje energije u Republici Srbiji. Procenjuje se da je 50-70% potrošnje energije u industriji namenjeno proizvodnji toplotne energije u različitim industrijskim procesima. Deo proizvedene toplotne energije se nepovratno gubi kao energija odvedena u okolinu: prenosom toplote kroz zidove procesne opreme, dimnim gasovim, otpadnim vodama itd. Korišćenjem otpadne toplote povećava se efikasnost korišćenja primarne energije i smanjuje ukupna potreba za energijom. Otpadna toplota se može koristiti u samom industrijskom objektu ...Dejan Ivezić, Marija Živković. "Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.17I
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Optimisation of underground mine decline development system using genetic algorithm
... i i i f x y z c R x x y y z z (3) 2 2 2 2 1 , , , , , n s s s d i s s s i f x y z x y z d c R x x y y z z (4) 2 2 2 3 1 , , n s s s s i m s m s m s i f x y z s c R x x y y z z ...
... Houck's method (Joines and Houck, 1994): 1 1 n m i j i j x f x C t g x h x (14) where C, α, β - constants defined by the user, e.g., C = 0.5; α = 1 or 2; β = 1 or 2; t - the generation number. 4. NUMERICAL EXAMPLE ...
... Building Orebody A 1,320,422 t Decline (equal for all sections) 2,200 USD/m Orebody B 223,060 t Surface section of transportation 600 USD/m Orebody C 560,811 t Orebody D 540,155 t Slope of decline and surface transport section Genetic algorithm parameters Decline max 14% Number of chromosomes ...Zoran Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović. "Optimisation of underground mine decline development system using genetic algorithm" in Underground mining engineering, Beograd : Univerzitet u Beogradu – Rudarsko–geološki fakultet (2014)
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Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja
Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...... saglasnosti fks i nesaglasnosti gks koje mogu uzi- mati vrednosti od 0 do 1, 1, , 1,2,..., ( 1) m k k s ksc c s n m m (31) 1, 0, ks ks ks ako je c c f ako je c c 1, , 1,2,..., ( 1) m k k s ksd d s n m m (32) 1, 0, ks ks ks ...
... koje je najbliže idealnom slučaju [15]. Matematički proračun metode započinje se formi- ranjem matrice odlučivanja: 1 2 1 2 ... ... m m C C C w w w 1 11 12 1 2 21 22 2 1 2 ... ... ... m m n n n nm A x x x A x x x M A x x x (11) Metoda se sastoji ...
... skupovi saglasnosti (29) i nesaglasnosti (30): , 1,2, ..., 1,2, ..., ij j ijv w r i m j n (28) ks 1 ( , ) za C = j C jks sjn kj j j w j c a b x xw , (29) max ksmax za D = j D kj sjks ks sj kj j J kj sj v v j d x xv v (30) U ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković. "Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1903369D
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Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... 2. A. Kitai, In Luminescent Materials and Applications, John Wiley & Sons Ltd., Chichester, England, 2008 (Online ISBN:9780470985687) 3. A. M. Latshaw, W. M.Chance, N. Trenor, G. Morrison, M. D. Smith, J. Yeon, D. E. Williams, H.-C. zur Loye, CrystEngComm 17 (2015) 4691 (https://doi.org/10 ...
... D. Smith, H.-C. zur Loye, CrystEngComm 18 (2016) 2294 (https://doi.org/10.1039/C6CE00177G) 7. A. M. Latshaw, J. Yeon, M. D. Smith, H.-C. zur Loye, J. Solid State Chem. 235 (2016) 100 (https://doi.org/10.1016/j.jssc.2015.12.013) 8. G. Morrison, A. M. Latshaw, N. R. Spagnuolo, H.-C. Zur Loye, J ...
... Hwang, H. Y.-P. Hong, M. C. Cheng, Y. Wang, Acta Cryst. C43 (1987) 1241 (https://doi.org/10.1107/S0108270187092308) 13. I. Vidican, M. Smith, M., H.-C. zur Loye, J. Solid State Chem. 170 (2003) 203 (https://doi.org/10.1016/S0022-4596(02)00029-4) 14. J. D. Napper, R. C. Layland, M. D. Smith, H ...Sabina Kovač, Predrag Dabić, Aleksandar Kremenović. "Crystal structure of K3EuSi2O7" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC210218026K
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A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...... Estimates es tima tion o f gas and d u st emi s sion and temperature c onditions f low p roc es s modelling u sing CFD Dat a acqu is i t io n v entila tion and p s y chromet ri c parame te rs v entila tion and p s y chromet ri c pa rameters Fig. 3. Architecture of the hybrid system INVENTS. M ...
... as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Mineral Resources Engineering, Vol. 11, No. 4 (2002) 361–382 c© Imperial College Press A KNOWLEDGE-BASED APPROACH TO MINE VENTILATION PLANNING IN YUGOSLAV MINING PRACTICE NIKOLA LILIĆ, IVAN OBRADOVIĆ and RANKA ...
... system effectiveness. 361 M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed f ro m w w w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F A L B E R T A o n 0 4 /2 6 /1 5 . F o r p er so n al u se o n ly . 362 N. Lilić, I. ...Nikola Lilić, Ivan Obradović, Ranka Stanković. "A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice" in Mineral Resources Engineering 11 no. 4, Imperial College Press (2002): 361-382. https://doi.org/10.1142/S0950609802001014
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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 ...... 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 ...
... under a warm stream of air. For monitoring the changes in mass spectra in the m/z range 10000-15000, fresh solution of PLA, c = 0.02 mg ml"! in 50 mM Tris-HCl buffer (37 °C and pH = 8.5) was prepared and applied on the sample plate premixed with sinapic acid, as control. Metal complexes were dissolved ...
... 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 ...Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković. "Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2" in Metallomics, Oxford University Press (OUP) (2011). https://doi.org/10.1039/c1mt00088h
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Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils
Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii... 1000 ◦C, at a rate of 10 ◦C/min. Two stages in the thermal analysis may be noticed, below and above 400 ◦C. Below 400 ◦C three peaks are noticeable followed by a minor weight loss. The first one occurring around 115 ◦C is assigned to evaporation of humidity. The other two peaks around 220 and 290 ◦C probably ...
... Li, J. Optimum conditions for microbial carbonate precipitation. Chemosphere 2010, 81, 1143–1148. [CrossRef] [PubMed] 48. Henry, D.; Watson, J.S.; John, C.M. Assessing and calibrating the ATR-FTIR approach as a carbonate rock characterization tool. Sediment. Geol. 2017, 347, 36–52. [CrossRef] 49. Tepe ...
... at 30 ◦C. 2.3. The Third Step: Examination of Metabolic Activities Relevant to the MICP The effect of different NaCl concentrations (3%, 5%, 7%, 10%, and 15%) on bacterial viability was observed as turbidity of inoculated TSB (Tryptone Soya Broth, HiMedia, Mumbai, India) after 48 h at 30 ◦C. The Anaerocult ...Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov. "Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils" in Microorganisms, MDPI AG (2021). https://doi.org/10.3390/microorganisms9081691
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Анализа стања квалитета ваздуха у граду Суботици за период од 2020. до 2023. године
Филип Величковић (2024)Овај завршни рад истражује концентрацију честица PM2.5 (честица са пречником мањим од 2,5 микрометра) и PM10 (честица са пречником мањимод 10 микрометара) у Суботици, и говори какав негативан утицај имају на здравље становништва.Пре тога је објашњена општа прича о аерозагађењу и саставу ваздуха, укључујући опис свих критеријумским загађивача, законској регулативи што се тиче квалитета ваздуха и дате су неке основне информације о агломерацији Суботица. Коришћени су подаци о концентрацији РМ2.5 и РМ10 честица прикупљени током истраживања ваздушног квалитета у ...... naHa 0 naHa Jan %e6 Map Anp Maj Jyt Jyn Asr Cen OxkT Hos neu — MpaxHM aaHM | & -12/-8'C e -8/-4'C O -4/0'%C eo/4'Cc e4/sCc e s/ ı2c e ı2/16'C 0 16/20'C 0 20/24'C 0 24/28'C 0 28/ 32 'C e 32 / 36 'C e 36/ 40'C Cnuka 14 - JlujaopaM Makcuaniux meunepamypa /lujarpaM MaKcHMajmHe TeMnepaType 3a CyOorHry ...
... 299C, a HajxnanHujuH je jaHyap ca HpOcCeuHHM JIHCBHHM MHHHMJYyMOM TeMLepaType Baylyxa oJ -2"C. Hajneha BpejnHocr maaaBHHa je y JyHy ca 69 mm. 40 'C 75 mm 20 'C 50 mm 10'C 0'C 25 mm -10 'C -20 'C 0 mm JaH e6 Map Anp Maj JyH Jyn ABr Cen OkT Hos neu Padavine — · BpyhH naHM — · XnannHe ...
... OpoHxuHrTHca. 3araljepe Ba3jlyxa TaKole mrreTH HalmeM IIpHpoJiHOM OKpy)Kebby, yrauyhu H Ha BereTalHjy H Ha JUHBJbC JKHBOTHM=C: CKOpO Bc TpehHMHe CBDpONCKHMX CKOCHCTeMa yTpoxxeHe cy c(bekKTHMa saaraljePba Ba3JlyXa. HajHonuje rponeHe EBporncke areHnuje 3a 3XHBOTHy cpemuHy (EEA) nokayyJy na cHrTHe uecTrHne ...Филип Величковић . Анализа стања квалитета ваздуха у граду Суботици за период од 2020. до 2023. године, 2024
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Анализа примене утискивања полимера за повећање искоришћења лежишта „Х“
Јана Ивановић (2024)Лежиште „Х“ се налази у Панонском басену и део је нафтно-гасног поља „ХХ“.С обзиром на висок удео воде у произведеном флуиду на лежишту је потребно применити неку методу којом би се смањила брзина напредовања фронта воде ка производним бушотинама, односно смањио удео воде у производњи. Овај рад има за циљ да детаљно испита могућност примене једне од допунских метода повећања искоришћења лежишта, методе утискивања полимера на изабраном лежишту „Х“. Први део рада приказује основне теоријске појмове на којима се ...... CHTyaljH KOJa MO)KEĆ JIOBECTH JIO HepaBHOMECDpHOTr HOTHCKHBaHKba HaQTe H paHuje Beh HOMeHyTOr c(DeKTa T3B. BHCKO3HOTr (buHrepHHra. IIro je Beha pa3mMKa M3Meby BHcKO3HTeTa HaQTe H BOMcC, TO Je OBajJ c(beKaT H3paxxeHuju, a HckopHniheme Ha()Te HH>Ke, CAMHM THM MO:Kec nohu Jno paHor ripojnopa BOJe ...
... MaCe Ha CMaHbeMb6 BHCKO3HOCTH TIOJ JIČJCTBOM CMHIaPa. [21] 14 —— Fiopaam 3630S —— Fliopaam 34305 —— Fiopaam 3230S [y 6u vi ra k B 4 c k o a H o c T M (% ) Spndo. Brne: 25000 TDS, 180 TDS CaandMg, _no catbonato | 0 40000 80000 120000 160000 Bp3MHa cMMuaMa [s"} Cnuka 2.6 3aqauchocm ...
... je Beha MoOJIeKyJICKa Maca OHa O0e30ebyjJe Behy BHCKO3HOCT. 21 80 ——38 million daltons --- 25 milion daltons 60 - 40 20 B u w c K o 3 H o c T n o ; M M e p a , ( m P a s ) 0 + U + U } 400 600 800 1000 1200 1400 1600 KoHujeHTpauyuja nonwWMepa, (mg/L) Cnuka 2.9 — 3aqauchocm ...Јана Ивановић. Анализа примене утискивања полимера за повећање искоришћења лежишта „Х“, 2024
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Geotehničko istraživanje terena za potrebe izgradnje mosta „Mihajlo Pupin“ u Zemunu
Luka Malenov (2024)Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Dušana Berisavljevića, analizirani su parametri dobijeni laboratorijskim ispitivanjima, kao i in-situ istraživanjima terena i ustanovljeni su geotehnički uslovi izgradnje mosta Zemun-Borča. Takođe, izvršeno je određivanje karakterističnih vrednosti geotehničkih parametara, koje se izučava u sklopu obaveznog predmeta u četvrtoj godini: Projektovanje inženjerskogeoloških radova. Detaljna geotehnička istraživanja terena, izveo je Saobraćajni institut CIP iz Beograda, za potrebe izrade Glavnog projekta mosta Mihajlo Pupin preko Dunava, ...... %/T//S/M _ / . o;Svta OAGR E alp., SP SP Č ?w C/K{///t_,//š//m/{/a / J . sž cm//s/s//}; · ĆA — A 65.0 | Fl || Peskovita prašina 77 E o 7 340%///;I 7 i - al·ps.s./sp 4"80%%/ % 7 alpee SP //////// %77 *1 C//({Mp% E_ || 1//3.//6@/// r -%%Pa % al {/č/g/{{/a//// | /// C?Ž//W@ Cka=11 MPa al p/ć 6707 /// v / %/ ...
... Dimitrijević V. Geo/logija kvartara , Naučna knjiga, Beograd 1992. 6. Peck, R.B Hansen, W.E. and Thormbum, T.H. (1974). FOUNDATION ENGINEERING. John Wiley & Sons, New York. 7. Schmertmann, J. H. (1975). Measurement of in situ shear strenght. Proceedings of ASCE Spec. Conf. On In Sıtu Measurement ...
... Effect in Sands of Overburden Pressure, Relative Density, Particle Size, Aging and Over- Consolidation. 9. Terzaghi, K. THEORETICAL SOIL MECHANICS. John Wiley & Sons, New York 1943. 10. Terzaghi, K., and Peck ,R. B. (1948). Soil mechanics in engineering practice. 1st ed. Wiley, New VYork, NY. ...Luka Malenov. Geotehničko istraživanje terena za potrebe izgradnje mosta „Mihajlo Pupin“ u Zemunu, 2024
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Geotehničko istraživanje terena za potrebe izgradnje mosta „Mihajlo Pupin“ u Zemunu
Luka Malenov (2024)Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Dušana Berisavljevića, analizirani su parametri dobijeni laboratorijskim ispitivanjima, kao i in-situ istraživanjima terena i ustanovljeni su geotehnički uslovi izgradnje mosta Zemun-Borča. Takođe, izvršeno je određivanje karakterističnih vrednosti geotehničkih parametara, koje se izučava u sklopu obaveznog predmeta u četvrtoj godini: Projektovanje inženjerskogeoloških radova. Detaljna geotehnička istraživanja terena, izveo je Saobraćajni institut CIP iz Beograda, za potrebe izrade Glavnog projekta mosta Mihajlo Pupin preko Dunava, ...... %/T//S/M _ / . o;Svta OAGR E alp., SP SP Č ?w C/K{///t_,//š//m/{/a / J . sž cm//s/s//}; · ĆA — A 65.0 | Fl || Peskovita prašina 77 E o 7 340%///;I 7 i - al·ps.s./sp 4"80%%/ % 7 alpee SP //////// %77 *1 C//({Mp% E_ || 1//3.//6@/// r -%%Pa % al {/č/g/{{/a//// | /// C?Ž//W@ Cka=11 MPa al p/ć 6707 /// v / %/ ...
... Dimitrijević V. Geo/logija kvartara , Naučna knjiga, Beograd 1992. 6. Peck, R.B Hansen, W.E. and Thormbum, T.H. (1974). FOUNDATION ENGINEERING. John Wiley & Sons, New York. 7. Schmertmann, J. H. (1975). Measurement of in situ shear strenght. Proceedings of ASCE Spec. Conf. On In Sıtu Measurement ...
... Effect in Sands of Overburden Pressure, Relative Density, Particle Size, Aging and Over- Consolidation. 9. Terzaghi, K. THEORETICAL SOIL MECHANICS. John Wiley & Sons, New York 1943. 10. Terzaghi, K., and Peck ,R. B. (1948). Soil mechanics in engineering practice. 1st ed. Wiley, New VYork, NY. ...Luka Malenov. Geotehničko istraživanje terena za potrebe izgradnje mosta „Mihajlo Pupin“ u Zemunu, 2024
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Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)
Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD... 675 5.785 112.28 174.496 triclinic P-1 [10] 5.741 5.649 5.756 110.588 174.750 monoclinic P2,/c [9] 5.7612 5.6841 5.7674 111.721 175.456 monoclinic P2,/c TEM study 5.75 5.68 5.76 1115 175.03 monoclinic P2/c Further, the TEM methods allow for obtaining convergent beam electron diffraction (CBED) ...
... Geochemistry 2020, 80, 125664. [CrossRef] 17. Craig,J.R.; Vaughan, D.J. Ore Microscopy and Ore Petrography; Wiley-Interscience, Chichester and New York; John Wiley and Sons Ltd.: Hoboken, NJ, USA, 1981; ISBN 0471551759. 18. Jelić,l.; Pačevski, A.; Kremenović, A.; Šoster, A.; Šestan, A.; Zavašnik, J. XRPD ...
... 4—Sastavci (Pb-Zn mine), 5—Trepča (Pb-Zn mine), 6—Golijska reka (W-Mo-Bi mineralisation), 7—Jurija (W mineralisation). (c,d) SEM-BSE micrographs of characteristic arsenopyrite samples from (c) Drenjak and (d) Sastavci locations, the latter showing visible zoning due to non-homogenous chemical composition ...Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik. "Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)" in Crystals, MDPI AG (2023). https://doi.org/10.3390/cryst13020278
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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 ...... EESEEKSESIEEEEEERIEEIKE = -, ~ ~ ~ ~ |_ ~ [• | e = [C] = O = o o [ o Il o o o ~ q o o ~ o o o Ol = o = q o el O | vi + ~+ + ~+ + [ [ o [c [1 |\z} ~+ o o ~+ ~+ |\z} [ [ c c c c c [ [} [ [ [ — |_ — — |_ |_ — [N [c-] 5 o q _ [] [ = ~+ + o [c o = [ o ~ O ~ [[s O [ = dd o ~. o ~ = o o o o d o ~ o ...
... LEGEND HA3VB, UIPAĐyPA V OSHAKA NAME, HATCH AND SYMBOL TE OJ IO 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 ...
... - H O L O C E N E - Q, CPTWSIN TipauiHa 3arnaHbeHa d |__1'| E O J I C K M A E O L I A N ) - oO u - d n u O e 06 G T ig r |. c j) o TipauiHa neckoBMTa Loess-like deposits TipauiHa rnnHoBMTa T E P E C T V I U K O - BA PC KI / T E R R E S T I C - M A R ...Ђорђе Крзман. Дефинисање геотехничких параметара еолских седимената земуснког платоа на основу лабораторијских и теренских SPT испитивања, 2024
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Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks
Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana (2013)Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks" in 64rd Annual Meeting of the International Committee for Coal and Organic Petrology (ICCP) Book of Abstracts, Sosnowiec, Poland:University of Silesia, Sosnowiec (2013): 108-109