Претрага
814 items
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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... suv ugalj Klasa krupnoće (-60 + 5 mm) - DTV Frakcije koje plivaju Frakcije koje tonu : M, x M,% x 7_ M, x i G\JS[TČ M,p |M,% EJ”ŽŽ/, DTV, M,% DTV, |M.%xDTY M,%| DTV, M.%xDTV [m] 8 kJ/kg kJ/kE- M.% kJ/kg M.% <1l,6 |13707,09|87,44 1364238,88| 87,44 | 1364238,88 | 15602,00 |100,0,1390929,4| 13909 ...
... Sadržaj pepela, suv ugalj Klasa krupnoće (-60 + 5 mm) - Sadržaj pepela Frakcije koje plivaju Frakcije koje tonu Gustine [t/m?| M,g |M,% |p,%|M,9% x p,%|M, % |M,% x p,% | | M, % |M,% x p,oo| e
... piknometar Da bi odredili gustinu p staklenim piknometrom za izračunavanje se koristi sledeći obrazac: _ m:—ml al |m,-m,)-(m,-m,) P gde su: > m;y - masa praznog piknometra, m - masa piknometra sa uzorkom, my - masa piknometra sa uzorkom i ksilolom, mu - masa piknometra sa ksilolom, ...Nemanja Dobrosavljević. P-T analiza RMU Bitola – krupne klase, 2024
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Istraživanje faune makrozoobentosa u izvorima
K. Belanović, I. Živić, Z. Marković, Ilić Marija, M. Radulović, M. Živić. "Istraživanje faune makrozoobentosa u izvorima" in Rizici i eko -bezbednost u postmodernom ambijentu -Internacionalna konferencija, septembar 19-12 jun, Novi Pazar, Novi Pazar:Državni univerzitet u Novom Pazaru (DUNP) (2010): 89-97
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A contribution to Jovan Cvijićs consideration of the Visočica river source
Nikić Zoran, Dokmanović Petar, Anđelić M, Lekić M. "A contribution to Jovan Cvijićs consideration of the Visočica river source" in Book of Abstracts of International Scientific Conference 150th ANNIVERSARY OF JOVAN CVIJIĆS BIRTH, Beograd:Serbian Academy of Sciences and Arts, Geographical institute “Jovan Cvijić” (2015)
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Mineralogy and thermal properties of clay from Slatina (Ub, Serbia)
Milošević M., Logar M., Kaluđerović L., Jelić I.. "Mineralogy and thermal properties of clay from Slatina (Ub, Serbia)" in Geophysical Research Abstracts Geophysical Research Abstracts 19, Vienna, Austria:Copernicus Publications (2017): 2044
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Mandible shape differentiation between Mammuthus trogontherii and M. primigenius and mandible shape ontogeny in M. primigenius specimens from Serbia: A preliminary explorative geometric morphometric study
Paunović Gordana, Bogićević Katarina, Urošević Aleksandar. "Mandible shape differentiation between Mammuthus trogontherii and M. primigenius and mandible shape ontogeny in M. primigenius specimens from Serbia: A preliminary explorative geometric morphometric study" in Quaternary International no. 443 (A) (2017): 212-220. https://doi.org/https://doi.org/10.1016/j.quai
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Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina
Tina Dašić, Ljiljana Vasić (2020)Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary ChangeTina Dašić, Ljiljana Vasić. "Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08987-4
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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. ...... 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 ako je d d g ako je d d ...
... 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 iz četiri koraka: Određivanje najveće ...
... matrice M 1 ... nC C 1 11 1 1 ... ... n m m mn A x x M A x x (16) gde su: A1,…,Am alternative, C1,…,Cn kriterijumi, xij je rang alternative prema kriterijumu. U sledećem koraku vrši se normalizacija matrice: 2 1 1,..., ; 1,..., n ij ij m ij i x ...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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Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)
Darko M. Božović (2016-09-28)Karbonatne sirovine, obzirom na geološku građu Crne Gore predstavljaju jednu od najznačajnijih nemetaličnih mineralnih sirovina. U Crnoj Gori postoje brojna leţišta karbonatnih sirovina (arhitektonsko - građevinskog i tehničko - građevinskog kamena) koja su istraţena ili su u eksploataciji, među kojima rudni reon Bjelopavlića zauzima najznačajnije mjesto.Dosadašnja istraţivanja karbonatnih sirovina na ovom području imala su, međutim, prevashodno uzak istraţivački cilj, utvrđivanje rezervi arhitektonsko - građevinskog i tehničko - građevinskog kamena određenog leţišta, ili preliminarna ispitivanja kvaliteta krečnjaka u njima, sa ...karbonatne mineralne sirovine, arhitektonsko - građevinski kamen, tehničko - građevinski kamen, karbonatna punila, rudni reon Bjelopavlića, potencijalnost.... M M M VL N 37 V eo m a v el ik a Maljat M M M L M M M M M VL VL 39 Vinići M M M L M M M M M VL N 37 Radujev krš M M M L M M M M M VL N 37 Slatina M L M L M M L M M N N 33 V el ik a Klikovače M L M L M M N M M N N 30 Suk L N L VL M M N M M N N 24 S re d n ja Sađavac L N ...
... N L VL M M N M M N N 24 Pješivački do M VL L VL M M N M M N N 27 Mali Garač M VL M L M M N M M N N 29 Jovanovići M N L VL M M N M M N N 25 Lalevići L N L VL M M N M M N N 24 Velje brdo N N L VL N N N M M N N 13 M a la Tološi N N L VL L L N L N N N 14 * Nema standarda već se koriste ...
... z m et ik a In d us tr ija š eć er a St oč na h ra na M in er al na đ ub ri va * N eu tr a li z a ci ja ze m lji št a* K v a n ti fi k ac ij a p a ra m et a ra K v a n ti fi k o v a n a p o te n ci ja ln o st Visočica M M M L M M M ...Darko M. Božović. "Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-28)
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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2024)
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The Early Middle Palaeolithic in the Balkans. The case of Velika and Mala Balanica (Serbia)
Mihailović, D., Belen Marín-Arroyo, A., Bogićević Katarina, Morley, M. & Roksandić, M.. "The Early Middle Palaeolithic in the Balkans. The case of Velika and Mala Balanica (Serbia)" in European Society for the Study of Human Evolution (ESHE). Inaugural Meeting, 23-24. September, Leipzig, Germany. (2011): 71-71
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Properties and characterization of a clay raw material from Miličinica (Serbia) for use in the ceramic industry
Milošević M., Logar M. (2017)Milošević M., Logar M.. "Properties and characterization of a clay raw material from Miličinica (Serbia) for use in the ceramic industry" in Clay Minerals 52 no. 3, UK:The Mineralogical Society (2017): 329-340. https://doi.org/https://doi.org/10.1180/claymi
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Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains
carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys... The section studied is 32 m thick (Pk; Fig. 5). The lower part of the section comprises green radiola- rites (0.O m) and varicgated radiolarites (at lecast 4. m). Above an exposure gap of 9 m, variegated radiolarites occur (14 m), followed by red radiolarites (3.6 m). Uplazianska Kopa section ...
... radiolarites (about 12 m, not fully exposed) and green radiolarites (about 3.5 m; Fig. 4). The upper part of the section consists of varicegated radiolarites, with reddish and greyish chert nodules (14 m), red radiola- rites (about 9 m), massive, red nodular limestones (about 8 m) with a radiolarite ...
... The section is 34 m thick (Fig. 6). The succession studied starts with grecn radiolarites (0.3 m) which pass into variegated radiolarites, with common massive red and dark grey chert nodules (17 m), red radiola- rites (at least 2 m) and red nodular limestones (about 12 m; Fig. 6). The upper ...Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková. "Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains" in Annales Societatis Geologorum Poloniae (2014)
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Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry
Milošević M., Logar M., Kaluđerović L., Jelić I.. "Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry" in Energy Procedia Energy Procedia 125, :Elsevier (2017): 650-655. https://doi.org/10.1016/j.egypro.2017.08.270
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Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series
Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija... of the vector U(i) j (i = 1, . . . , M); select the number of r eigentriples for the reconstruction stage that can also be used for forecasting purposes; define matrix U∇M = ( U∇M 1 , . . . , U∇M r ) , where U∇M j is as follows: U∇M j = U(1)∇ j ... U(M)∇ j , (10) define matrix W as ...
... marker m over time correspond to one channel time series. If we take into consideration the total number of markers is M, then we are faced with an M-channel time series. Consider an M-channel time series with a series length of Ni; V(i) Ni = ( v(i)1 , . . . , v(i)Ni ) , (i = 1, . . . , M), where ...
... coordinates of the marker m over time correspond to one channel time series. If we take into consideration the total number of markers is M, then we are faced with an M-channel time series. Consider an M-channel time series with a series length of N;; Vy = (o!’, Leey oN), (i=1, ...,M), where N is the time ...Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić. "Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series" in Energies, MDPI (2021). https://doi.org/https://doi.org/10.3390/en14123710
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Хидрогеолошки услови формирања угљокиселих минералних вода Србије
Goran H. Marinković (2014-06-17)Докторском дисертацијом разматране су хидрогеолошке структуре угљокиселихминералних вода литосфере Србије. При истраживањима узети су у обзир:резултати испитивања старости, порекла и физичко – хемијских карактеристикаугљокиселих вода, геотемпературни услови и геотектонска грађа литосфере,резултати изотопских испитивања на δ13С у карбонатима хидротермалнихлежишта, резултати истраживања минималних температура трансформацијекарбоната и структурно - хидрогеолошки услови у областима дренирањаугљокиселих вода.Резултати показују да је угљеник угљокиселих вода пореклом из карбонатахидротермалне фазе младих магматских процеса, а да су матични супстратиовог елемента карбонати мезозојских и палеозојских седиментних иметаморфних стена. Угљендиоксид ...литосфера Србије, угљокиселе воде, генеза, супстрати, рејони,хидрогеолошке структуре, дубина залегања, геолошки услови, типови,потенцијал.... дат, Москва. Урошевић М., Павловић З., Клисић М., Малешевић М., Стефановић М., Марковић О. и Трифуновић С., 1973: Тумач за лист Врњци, Основне геолошке карте 1:100.000. Београд. 157 Урошевић М., Павловић З., Клисић М., Карамата С., Малешевић М., Стефановић М., Марковић О. и Трифуновић ...
... планирања, Београд. Вукановић М., Димитријевић М., Димитријевић М., Карајичић Љ., Рајчевић Д. и Пејчић М., 1982: Тумач за лист Подујево, Основне геолошке карте 1:100.000. Београд. Вукановић М., Карајичић Љ., Димитријевић М., Можина А., Гагић Н. и Јевремовић М., 1973: Тумач за лист Лесковац, ...
... бушотине (К+470 m), на левој обали реке, на 9 m дубине, избио гејзир висине 8 m (t = 71 оС). Из бушотине код Главног извора на 12 m избио је водоскок висине 1 m, који је наставио да пулсира на 12-15 минута. У кристаластим шкриљцима са прослојцима бигра, избушен је бунар дубине 80 m, код хотела Гејзир ...Goran H. Marinković. "Хидрогеолошки услови формирања угљокиселих минералних вода Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-06-17)
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Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water
Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M (2014)Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M. "Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water" in Industrial and Engineering Chemistry Research 53 no. 27, Washington:American Chemical Society (2014): 10841-10848. https://doi.org/10.1021/ie500849r
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Ca-rich carbonates associated to ultrabasic-ultramafic melts: carbonatite remnants or limestone xenoliths? A case study from the late Miocene Morron de Villamayor volcano (Calatrava volcanic field, central Spain).
Lustrino, M., Prelević, D., Agostini, S., Gaeta, M., Di Rocco, T., Capizzi, L. S.. "Ca-rich carbonates associated to ultrabasic-ultramafic melts: carbonatite remnants or limestone xenoliths? A case study from the late Miocene Morron de Villamayor volcano (Calatrava volcanic field, central Spain)." in Geochimica et Cosmochimica Acta 185, :Pergamon (2016): 477-497. https://doi.org/10.1016/j.gca.2016.02.026
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The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>
The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...... activator concentration that gives a rate equal to half at a saturating concentration of activator, were found to be 8.82 + 0.90 „M, 8.39 + 0.76 „ M, and 8.05 + 0.48 „M respectively. Native PAGE electrophoresis shows the decrease in electrophoretic mobility of pepsin and confirms modification of the ...
... sample of 5 mL of pepsin solution (3:10 M ofin 0.01 M HCI, pH 2), was extensively dialyzed. Solution was placed in dialysis bags (0 mm flat width) with a molecular cut of 12 to 14 kDa (Sigma- Aldrich) and dialysed against 50mL AICI5·6H»O solution (0.01 M pH 2), for 36h at 4"C with gently stirring ...
... Aluminium was found to stimulate the enzyme activity 250 _ APP1(M % of activation »0 | IA ](M) % s | . 0 a 1.7x10 30.7 ' isoj 34x10% 51.0 -| 17x10" 72.8 < | 17x10% 95,7 87%1I0% 135.8 100—- — —— ıI IO 107 107 |[} [AU](M) Figure 1. Relative activity of pepsin in the presence of AP * ions ...Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić. "The influence of Al3+ion on porcine pepsin activityin vitro" in Journal of Enzyme Inhibition and Medicinal Chemistry, Informa UK Limited (2008). https://doi.org/10.1080/14756360701841095
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Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit
... 31935', • cohesion C = 138.33[kN/m{|, • volume weight y = 26.26[kN/ m{l, • compressive strength O, = 80.808{MPa], • tensile strength O = 7.590[MPa], • velocity of ongitudinal elastic waves C, = 6661.00[m/ s] , • velocity of transverse elastic waves C, = 2852.67[m/ s] ; = 62.46[GN/m2], • dynamic ...
... curve of the rock mass oscillation velocity passes through the point M](Rl,vl). Model 5 – Simplified model defining parameters adopting the values of parameter m Earlier numerous explorations have shown that the value of parameter m ranges mostly in the interval from 1 to 3, most frequently in the ...
... this model, determination of the parameter m is based on the quotient of the product of equal number of experimental data of the rock mass oscillation velocity V , using the oscillation velocity equation. In this way, first, wc determine the parameter m , and then, when the parameter n found, we ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac. "Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia, Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7
Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...... terraced plateaus (al, al-pr, pr, t1, t2) Quaternary and Neogene hilly terrains (dl-pr, dl, Pl, M-Pl, M) Cretaceous flysch complex (pr, K) Neogene hilly terrains (Pl, M-Pl, M) are usually covered with Quaternary sediments (dl- pr, el-dl, pr). They are located along the periphery of the ...
... Merdare (Figure 1). The most characteristic structures on the route are the bridge across the Toplica River (1020 m) and the tunnels „Bozurna“ (620 m) and „Racunkovo brdo“ (1225 m). Figure 1. Highway route with characteristic details on the section Nis-Plocnik Remarkable number of g ...
... represent a permanent horizon, but appear in the form of lenses with max thickness of 10 m. Products of physical- chemical decomposition of this complex have different thicknesses, ranging from 0.5 m to over 5.0 m. More solid gneisses and amphibolite have thinner weathering zone and build up mo ...Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković. "Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7" in Proceedings of the XVII European Conference of Soil Mechanics and Geotechnical Engineering ECSMGE-2019, Reykjavik, Iceland, 1-6. 09. 2019., ISSMGE, ECSMGE-2019 (2019). https://doi.org/10.32075/17ECSMGE-2019-0393