Претрага
1131 items
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Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report
Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić (2021)Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić. "Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report" in Understanding and Reducing Landslide Disaster Risk, Springer International Publishing (2021). https://doi.org/10.1007%2F978-3-030-60196-6_19
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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... 1 2 M2 3 2 4 3 3 2 1 2 M3 3 2 3 2 2 2 2 3 M4 1 1 3 2 2 2 1 2 M5 2 2 3 2 2 2 2 2 M6 2 2 2 2 3 2 2 2 Tabela 101. Koren sume kvadrata. K1 K2 K3 K4 K5 K6 K7 K8 M1 4 9 9 9 9 4 1 4 M2 9 4 16 9 9 4 1 4 M3 9 4 9 4 4 4 4 9 M4 1 1 9 4 4 4 1 4 M5 4 4 9 4 4 4 4 4 M6 4 4 4 4 9 4 4 4 31 26 56 ...
... 1 2 3 Tabela 67. Koren sume kvadrata. K1 K2 K3 K4 K5 K6 K7 KEX1 4 4 9 9 4 4 4 KEX2 9 4 9 9 4 4 9 KEX3 4 4 9 9 4 9 9 KAX1 9 4 4 9 4 9 9 KAX2 1 4 4 4 4 9 9 KAX3 4 4 9 9 4 1 9 NaIPX1 4 4 9 9 4 9 9 NaIPX2 4 4 4 4 1 4 9 Suma kvadrata 39 32 57 62 29 49 67 �𝑆𝐾2 6,244997998 5,656854249 7 ...
... 1 3 4 0,0320 0,3922 S57 2 5 6 7 1 3 4 0,0320 0,3922 S58 2 3 4 7 1 5 6 0,0408 0,5000 S61 7 1 2 3 4 5 6 0,0816 1,0000 S62 1 2 3 4 5 6 7 0,0816 1,0000 S63 1 2 3 4 5 6 7 0,0816 1,0000 S64 3 1 2 4 5 6 7 0,0816 1,0000 S65 1 3 4 2 5 6 7 0,0816 1,0000 S67 1 2 3 4 5 7 6 0,0083 0,1021 S68 1 2 3 4 5 7 ...Zoran M. Štirbanović. "Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-07-01)
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Laboratory testing of fly ash
Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction... 423,5 0 % 423,5 0 % 402,0 0 % 402,0 L 2 % 790,7 C 2 % 1139,6 L 2 % 783,1 C 2 % 1159,0 L 2 % 787,5 C 2 % 1147,2 L 4 % 753,7 C 4 % 1308,5 L 4 % 864,9 C 4 % 1333,4 L 4 % 817,2 C 4 % 1324,4 L 6 % 735,8 C 6 % 1250,6 L 6 % 950,4 C 6 % 1202,8 L 6 % 832,6 C 6 % 1227,1 The value ranges of the uniaxial ...
... 0 % 538,4 0 % 527,2 0 % 527,2 L 2 % 1147,8 C 2 % 1139,6 L 2 % 1039,3 C 2 % 1159,0 L 2 % 1087,4 C 2 % 1147,2 L 4 % 1890,1 C 4 % 1308,5 L 4 % 1726,8 C 4 % 1333,4 L 4 % 1772,8 C 4 % 1324,4 L 6 % 2312,0 C 6 % 1250,6 L 6 % 2390,8 C 6 % 1202,8 L 6 % 2387,4 C 6 % 1227,1 The value ranges of the ...
... Compressive strength Rc / kPa L 2 % 1489,5 C 2 % 1663,8 L 2 % 1352,7 C 2 % 1542,2 L 2 % 1406,0 C 2 % 1523,4 L 4 % 2668,9 C 4 % 1901.0 L 4 % 2723,7 C 4 % 1610,6 L 4 % 2689,2 C 4 % 1748,7 L 6 % 4196,1 C 6 % 1831,2 L 6 % 4094,7 C 6 % 1883,6 L 6 % 4008,0 C 6 % 1872,5 3.5.2 Indirect tensile ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Laboratory testing of fly ash" in Tehnički vijesnik (2016). https://doi.org/10.17559/TV-20150317171035
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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.... 1 0 ,0 0 1 G Ţ 4 3 ,9 0 4 3 ,9 8 4 3 ,9 5 4 3 ,8 8 4 4 ,0 1 4 3 ,7 7 4 3 ,7 8 4 3 ,8 6 4 4 ,0 3 4 3 ,9 6 4 3 ,9 8 4 3 ,9 7 4 3 ,8 4 4 3 ,9 6 T O T / C 1 2 ,3 7 1 2 ,3 2 1 2 ,2 7 1 2 ,3 5 1 2 ,4 2 1 2 ,4 0 1 2 ,3 25 1 2 ,5 ...
... ,0 4 0 ,0 8 C a O 5 5 ,0 6 5 5 ,0 6 5 5 ,2 6 5 5 ,2 9 5 5 ,2 4 5 5 ,0 3 5 5 ,0 0 5 4 ,9 5 5 4 ,9 2 5 5 ,2 1 5 4 ,8 4 5 4 ,7 7 5 4 ,5 3 5 4 ,0 2 M g O 0 ,2 9 0 ,2 9 0 ,2 6 0 ,2 7 0 ,3 2 0 ,3 4 0 ,4 9 0 ,6 2 0 ,3 8 0 ,4 7 ...
... 0 ,5 4 5 0 ,1 6 F e O / H M -2 / 2 1 ,3 9 2 ,8 7 4 8 ,2 4 0 ,3 4 5 ,4 3 1 ,0 0 0 ,2 4 4 0 ,4 9 F e O / H M -2 / 3 2 ,8 7 0 ,2 8 4 ,5 5 3 2 ,0 4 7 ,5 2 5 2 ,7 4 F e O ...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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Evaluation And Perspectives Of Underground Coal Mines In Serbia
... Vrška Čuka 1 2 3 1 4 2 2 Ibarski mines - Jarando 1 2 2 1 4 2 1 - Tadenje 1 1 4 2 3 2 1 REMBAS - Strmosten 3 3 2 3 3 4 4 - Block IV 2 2 2 3 4 4 2 - Senjski rudnik 1 2 2 2 3 4 1 Soko 5 2 1 3 3 4 4 Bogovina 2 3 4 1 2 2 1 Jasenovac 2 2 3 2 3 2 2 Lubnica 4 4 2 3 2 2 2 Štavalj ...
... much variation is allowed and must be less than 10%. Finally, random index (RI) is given in Table 6. Table 4. Pairwise comparison matrix of criteria C1 C2 C3 C4 C5 C6 C7 C1 1 2 3 1 1 2 4 C2 0.5 1 0.5 0.5 0.5 0.5 0.5 C3 0.33 2 1 0.33 0.33 0.5 2 C4 1 2 3 1 1 3 2 C5 1 2 3 1 1 2 2 C6 0.5 ...
... evaluation of underground coal mines in Serbia The Analytic Hierarchy Process (AHP) is a multi-criteria decision-making approach introduced by Saaty [4]. The AHP method enables users to determine the weights of the parameters in the solution of a multi-criteria problem. In the AHP method, a hierarchical ...Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić. "Evaluation And Perspectives Of Underground Coal Mines In Serbia" in 7th Balkan Mining Congress Preceedings - BalkanMine2017, Prijedor, 11-13. oktobar 2017., Banjaluka : University of Banjalika, Faculty of Mining, RS, BiH (2017)
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Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications
The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...... 2 0 � 0 4 0 1 4 00 M ar ly li m es to n es g re y is h -w h it e 1 4 /1 5 2 3 0 .3 2 3 9 .4 7 8 4 .5 2 1 9 .7 2 3 2 .6 7 8 4 .5 3 4 0 /1 6 S a n to n ia n 4 V ra će v šn ic a 4 3 1 4 – 3 2 5 4 4 � 0 4 0 2 2 00 2 0 � 3 4 0 5 0 00 F ly sc h g re y 6 /1 2 2 1 8 .9 2 4 0 .3 3 2 ...
... ar ry 3 9 5 5 – 9 7 7 , 4 0 4 5 – 0 5 7 4 1 1 4 – 1 3 7 4 4 � 1 3 0 1 5 00 2 0 � 2 8 0 4 1 00 W h it e li m es to n e re d li m es to n e 1 8 /6 1 3 0 /6 1 2 6 0 .8 2 .6 * 2 5 2 .7 5 8 .9 * 5 9 4 1 4 .5 4 .2 2 5 1 .7 3 5 9 .3 2 4 8 .5 5 1 .2 6 2 2 9 4 .4 5 .6 V ar ia b le U p ...
... n ia n 7 T o li ć q u ar ry 4 0 1 5 – 0 2 2 4 4 � 1 3 0 1 4 00 2 0 � 2 8 0 4 3 00 L im es to n e R ed 8 /8 3 5 9 .9 * 5 8 .0 * 2 7 1 3 .4 3 5 0 .1 4 6 .2 2 7 1 3 .4 3 2 2 /1 4 U p p e r C a m p a n ia n 8 L ip o v ic a q u ar ry 4 2 0 1 – 2 2 5 4 4 � 1 6 0 0 5 00 2 0 � 3 9 0 0 5 ...Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov. "Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications" in Swiss Journal of Geosciences, Basel : Springer International Publishing (2018). https://doi.org/10.1007/s00015-018-0321-8
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Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining
Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)... Availability (TA) T1 T2 T3 T4 Weight T1 T2 T3 T4 Weight T1 1 1 2 4 3 0.306 T1 1 1 4 4 0.400 T2 2 1 5 4 0.492 T2 1 1 4 4 0.400 T3 1 4 1/5 1 1/2 0.078 T3 1 4 1/4 1 1 0.100 T4 1/3 1/4 2 1 0.125 T4 1 4 1/4 1 1 0.100 λmax 4.03218 λmax 4 CI 0.01073 CI 0 CR 0.01205 CR 0 Table 12. Ranking by exploitation ...
... Ownership Costs (OW) Operational Costs (OP) T1 T2 T3 T4 Weight T1 T2 T3 T4 Weight T1 1 2 1/3 1/4 0.125 T1 1 1/2 2 1 2 0.189 T2 1/2 1 1/4 1/5 0.078 T2 2 1 3 1 0.351 T3 3 4 1 1/2 0.306 T3 1 2 1/3 1 1/3 0.109 T4 4 5 2 1 0.492 T4 2 1 3 1 0.351 λmax 4.03002 λmax 4.00821 CI 0.01001 CI 0.00274 CR 0.01124 CR ...
... availability (TA). Working Hours (WH) General Repair (GR) T1 T2 T3 T4 Weight T1 T2 T3 T4 Weight T1 1 3 4 2 0.467 T1 1 3 4 3 0.516 T2 1/3 1 2 1/2 0.160 T2 1/3 1 2 1 0.189 T3 1 4 1/2 1 1/3 0.095 T3 1 4 1 2 1 1 2 0.105 T4 1/2 2 3 1 0.277 T4 1/3 1 2 1 0.189 λmax 4.02322 λmax 4.01268 CI 0.00774 CI 0.00423 ...Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović . "Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining" in Energies, MDPI (2019). https://doi.org/https://doi.org/10.3390/en12122245
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Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine
Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić. "Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945617
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Crystal structure of Cd5(VO4)2(OH)4 and CdV3O7 - Кристалне структуре Cd5(VO4)2(OH)4 и CdV3O7.
Đorđević Tamara, Karanović Ljiljana (2013)Đorđević Tamara, Karanović Ljiljana. "Crystal structure of Cd5(VO4)2(OH)4 and CdV3O7 - Кристалне структуре Cd5(VO4)2(OH)4 и CdV3O7." in XX Konferencija Srpskog kristalografskog društva, Izvodi radova, Avala, Srbija:Srpsko kristalografsko društvo (2013): 64-65
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Стање квалитета амбијенталног ваздуха на подручју града Београда
Марко Колачарић (2024)У овом раду анализирано је стање квалитета амбијенталног ваздуха на територији града Београда. Анализа се заснива на праћењу података о загађујућим материјама прикупљеним у 2022. години са шест мерних места на територији града. Загађивачи који су обухваћени овом радом су сумпор-диоксид (SO2), азот-диоксид (NO2), честични загађивачи (PM2.5 и PM10), тропосферски озон (О3) и угљен-моноксид (СО). На основу добијених резултата предложене су мере за побољшање тренутног система. Констатовано је прекорачење законских граница на свим мерним местима, за једну или више ...... ——UHopnu Beorpan ——Mocrap ——Bpauap ——3eneHo 6pno ——O6peHoBa ueHTap —UMNnK 4 4 4 4 4 cc-CL-GL CcC-CL-LL cc-CL-eO cc-LL-GC cc-LL-ZL cc-LL-G60 cc-LL-LO cc-OL-PC cc-0L-9L cc-O0L-80 cc-60-0E 4 4 4 4 cc-60-PL ec-60-90 cc-80-6Zc cc-80-LC cc-80-EL cc-80-S0 cc-/0-8C ...
... cc-Z0-P0 ec-90-9C cc-90-8L cc-90-O0L Zcc-90-c0 ec-SO0-SZ cc-SO-ZL ec-S0-60 ee-SO0-L0 4 4 4 2 2 4 cc-PO-GL cc-vO-Z/0 4245 u0}5] 4 4 5 4 4 cc-CO-PL cc-e0-90 44 4k::[4 cc-cO0-gL cc-CO-OL Zcc-CO0-cO0 cc-LO-SC cc-LO-ZL Zcc-LO-60 cc-LO-L0 Feb Mar Apr May Jun ...
... — — — ~ • ~ = ” - i = - 4 — — - ı o ıD o ı [ [=] = [1] [5] — = g-uu:grl CC-CL-LE [ 4 2 4 % / 4 cc-ClL-ZL cc-CL-OL cc-CL-CO cc-LL-9C CC-LL-GL cc-LL-CL cc-LL-GO cc-O0L-6C 4 4 4 4 cc-OL-GL cc-0L-80 cc-O0L-LO cc-60-PC ...Марко Колачарић . Стање квалитета амбијенталног ваздуха на подручју града Београда, 2024
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Hibridni sistem za planiranje i analizu ventilacije rudnika
... Aeration2-4 GasState GasEvaluation GasState1-4 SystemStability EvalStability CalculationES Stability1-4 FireRisk EvaluationFR FireRisk1-4 AirLoss EvaluationAL AirLoss1-4 DustRisk EvaluationDR CalculationEvalDR DustRisk1-4 ClimateCond EvaluationCC CalculationEvalCC Climate1-4 LossFrequency ...
... CalculatDeltaL LossBranch1-4 DepBranch Pz CalculationPz DepBranch1-4 Diagonals Delta CalculateDelta Diagonals1-4 EquivOpening CalculationEval EquivOpen1-4 CoefFlowUse ValueCFU CalculationCFU CoefFlowUse1-4 AirObtainment ValueAO CalculationAO AirObtain1-4 VentWorkload VentWorkload ...
... 1 1 2 0.41 34.93 500.85 187.2 2 1 12 13.05 9.24 1115.12 -78.2 3 2 3 0.02 30.67 16.18 -269.6 4 2 11 5.98 4.26 108.40 0 5 3 4 0.23 25.52 147.59 284.6 6 3 10 0.97 5.15 25.63 268.1 7 4 5 0.03 17.42 10.53 -18.0 8 4 7 2.88 8.10 188.90 -42.0 0.22 9 5 6 0.12 12.31 18.33 -13.6 10 5 9 8.04 5.11 209.97 -24.1 11 ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000
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A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System
This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFISMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić. "A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System" in Energies, MDPI AG (2023). https://doi.org/10.3390/en16072958
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Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija
Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)... 2 5 4 7 5 6 8 C2 1 1 2 2 4 4 5 6 7 8 C3 1/2 1/2 1 2 5 5 5 6 7 8 C4 1/2 1/2 1/2 1 2 2 5 4 6 7 C5 1/5 1/4 1/5 1/2 1 1 5 4 7 6 C6 1/4 1/4 1/5 1/2 1 1 5 4 5 6 C7 1/7 1/5 1/5 1/5 1/5 1/5 1 3 3 4 C8 1/5 1/6 1/6 1/4 1/4 1/4 1/3 1 3 5 C9 1/6 1/7 1/7 1/6 1/7 1/5 1/3 1/3 1 2 C10 1/8 1/8 1/8 1/7 1/6 1/4 1/4 1/5 ...
... 2 5 4 7 5 6 8 C2 1 1 2 2 4 4 5 6 7 8 C3 1/2 1/2 1 2 5 5 5 6 7 8 C4 1/2 1/2 1/2 1 2 2 5 4 6 7 C5 1/5 1/4 1/5 1/2 1 1 5 4 7 6 C6 1/4 1/4 1/5 1/2 1 1 5 4 5 6 C7 1/7 1/5 1/5 1/5 1/5 1/5 1 3 3 4 C8 1/5 1/6 1/6 1/4 1/4 1/4 1/3 1 3 5 C9 1/6 1/7 1/7 1/6 1/7 1/5 1/3 1/3 1 2 C10 1/8 1/8 1/8 1/7 1/6 1/4 1/4 1/5 ...
... Activity of the tailings—C7 Active Not active Not active Not active Active Geological environment—C8 Alluvial Alluvial Alluvial Alluvial Alluvial 4 m 4 m 4 m 4 m 4 m General slope of the terrain—C9 8% 0% 0% 7% 8% Tailing maintenance—C10 No maintenance No maintenance No maintenance No maintenance No ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
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Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... Eu1‒O1iv 2.282 (4) K1‒O1ii 3.006 (6) Eu1‒O1i 2.282 (4) K1‒O1iii 3.006 (6) Eu1‒O1xiv 2.282 (4) K1‒O1iv 3.049 (5) Eu1‒O1iii 2.282 (4) K1‒O1v 3.049 (5) Eu1‒O1viii 2.282 (4) K2‒O1i 2.923 (4) Eu1‒O1xv 2.282 (4) K2‒O1vi 2.923 (4) Eu2‒O2vii 2.334 (7) K2‒O1vii 2.923 (4) Eu2‒O2 2.334 (7) ...
... (7) K2‒O1iii 2.923 (4) Eu2‒O2xi 2.334 (7) K2‒O1viii 2.923 (4) Eu2‒O2i 2.334 (7) K2‒O1ix 2.923 (4) Eu2‒O2xvi 2.334 (7) K2‒O3viii 3.029 (3) Eu2‒O2xvii 2.334 (7) K2‒O3 3.029 (3) Si1‒O1iii 1.616 (5) K2‒O3iii 3.029 (3) Si1‒O1ii 1.616 (5) OnLin e Fir st 4 KOVAČ et al. Bond length ...
... K3‒O2i 2.754 (7) Si1‒O2xviii 1.622 (7) K3‒O2x 2.754 (7) Si1‒O3 1.661 (4) K3‒O2xi 2.754 (7) Bond angle, o Bond angle, o O1iii‒Si1‒O1ii 111.0 (4) O1ii‒Si1‒O3 106.7 (2) O1iii‒Si1‒O2xviii 110.9 (2) O2xviii‒Si1‒O3 110.5 (4) O1ii‒Si1‒O2xviii 110.9 (2) Si1‒O3‒Si1xvii 136.7 (6) O1iii‒Si1‒O3 ...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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Procena aktivnosti upravljanja održavanjem opreme za dubinsko bušenje nafte i prirodnog gasa
Iva Filipov (2024)Primarni fokus održavanja je sprečavanje zastoja u radu, koji može dovesti do značajnih finansijskih gubitaka. Redovne provere i monitoring performansi opreme omogućavaju pravovremeno otkrivanje problema i smanjenje rizika od havarija. U ovom kontekstu, korišćenje naprednih tehnologija, poput softverskih alata za upravljanje održavanjem, igra značajnu ulogu u optimizaciji procesa. Osim tehničkog održavanja, obuka osoblja o pravilnoj upotrebi opreme i sigurnosnim procedurama je od suštinskog značaja. Efikasna komunikacija između članova tima i jasne smernice za rad doprinose smanjenju rizika i povećanju produktivnosti. Upravljanje održavanjem takođe zahteva analizu troškova, kako bi ...... oprema, upravljanje, efikasnost, ekonomičnost. SADRŽAJ 2. OPREMA ZA DUBINSKO BUŠENJE NAFTE I PRIRODNOG GASA ..4 2.1 Opšte karakteristike bušotine......aaaaaaaa a aaaaaananı 4 2.2 Izrada bušotina ...č aaaaaeaaaaeaaaaaaeaaNakatt 5 2.3 Bušaća postrojenja.....aaaaa a aaaaaaaaaaaaaaatattt 7 ...
... zagađenja i smanjenje buke, pomoćne usluge i druge usluge koje vrši održavanje. (4) Dakle, održavanje opreme za dubinsko bušenje spada u primarne zadatke kada Je u pitanju održavanje celokupnog sistema/postrojenja. (4) Održavanje opreme za dubinsko bušenje ključno je za osiguravanje efikasnosti ...
... dinamikom prethodne godine. (4) Do sada Je razvijeno dosta principa menadžmenta održavanja. Kritični principi upravljanja održavanjem dati su u tabeli 1. Ovi principi redovnom primenom mogu povećati produktivnost i uspešnost poslovanja odeljenja za održavanje. (4) 24 Tabela 1. Kritični principi ...Iva Filipov . Procena aktivnosti upravljanja održavanjem opreme za dubinsko bušenje nafte i prirodnog gasa, 2024
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... (first and last parts) and tubing (1/4 and 3/4) with concrete lining (Figure 1). Three observation wells, PP-1, PP-3 and PP-4, were deep-drilled along the tunnel and the screens installed within the tunnel zone. The HPP has a gravity dam and is usually operated 4–5 h/day. Surface water reservoir is located ...
... (Table 4), was sampled at 4 + 230 m of the tunnel. In addition, the water samples from 1 + 970 m exhibited a high sulfate aggressiveness to the tunnel lining. Consequently, these two sections of the tunnel are considered to be the most threatened, from a structural stability perspective. Table 4. Cla ...
... Waters/Sampling Points Sampling Points in Tunnel (m) pH ≤6.5 [9] 0 - Mg (mg/L) >300 [9] 0 - SO4 (mg/L) ≥200 [9] 2 1 + 970, 4 + 230 Cl (mg/L) >500 [10] 1 4 + 230 LSki >1.2 [11,12] 1 4 + 230 Water 2019, 11, 603 9 of 10 5. Conclusions The described monitoring concept for quantitative and qualitative ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua. "The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis" in Environmental Earth Sciences, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s12665-021-09392-1
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49