Претрага

Упит dcterms_subject_txt:MIS 5 to MIS 3

1894 items

  • Primena AHP и WoEmetode u proceni podložnosti terena na kliženje za područje opštine Krupanj

    Biljana Abolmasov, Jelka Krušić, Katarina Andrejev, Miloš Marjanović, Ranka Stanković, Uroš Đurić (2017)
    ... geotehnička istraživanja pojedi- načnih pojava, te time i dobijanje relevantnih kvantitativ- nih podataka za primenu drugih modela procene hazarda od kliženja, tzv. determinističkih ili probabilističkih [3]. IZGRADNJA 71 (2017) 7–10, 239–246 245 5. ZAKLJUČAK U radu je prikazana primena različitih ...
    ... sericitski škriljci, metapeščari) Nagib terena (M2) 1 2 3 4 5 6 0 – 5 ° 5 – 10° 10 – 15 ° 15 – 20° 20 – 30° > 30 ° Udaljenost od lokal- nih vodotoka (m) (M3) 1 2 3 4 5 1 – 140 140 – 310 310 – 500 500 – 740 > 740 Visina reljefa (m.n.v) (M4) 1 2 3 4 5 145 – 275 275 – 370 370 – 450 450 – 600 > 600 Udaljenost ...
    ... Erodibilnost tla (M7) 1 2 3 4 5 Veoma niska Niska Srednja Visoka Veoma visoka Orijentacija padina (M8) 1 2 3 4 5 1 – 60° 60 – 125 ° 125 – 200 ° 200 – 285 ° 285 – 360 ° parametara (Tabela 3) vrednovan je po jednačini (3): M=0.26*M 1 + 0.21*M 2 + 0.20*M 3 + 0.14*M 4 + 0.08*M 5 + 0.06*M 6 + 0 ...

  • The Reciprocal Algebraic Integers Having Small House

    Dragan Stankov (2021)
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • Some models for determination of parameters of the soil oscillation law during blasting operations

    Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić (2018)
    ... r0 “ 3 c 3 ¨ Q 4 ¨ π (4) Energies 2016, 9, 617 3 of 15 By replacing the value r0 from the Equation (4) into Equation (3), we obtain: v “ Kv ¨ ˝ 3 b 3¨Q 4¨π r ˛ ‚ n “ Kv ¨ ˜ 3 c 3 4 ¨ π ¸n ¨ ˆ 3 ? Q r ˙n “ Kv ¨ K1 ¨ ˆ r 3 ? Q ˙´n “ K ¨ ˆ r 3 ? Q ˙´n “ K ¨ R´n (5) where ...
    ... one). ‚ For model 3: ρ3 = 0.8768 (there is a strong correlation between R and v, given in Equation (33)). εmax3 = 0.2300, S3 = 0.1503, 3S3 = 0.4509. εmax3 < 3S3 (the supposed functional relationship is accepted as a good one). Energies 2016, 9, 617 14 of 15 5. Conclusions To establish the relationship ...
    ... (cm/s) 1 MM–1 335.0 3.623.0 21.8117 0.1460 0.0517 1.2000 1.2100 2 MM–3 850.0 3.623.0 55.3430 0.0138 0.0270 0.0617 0.0687 3 MM–5 830.0 3.264.0 55.9536 0.0206 0.0133 0.0407 0.0475 4 MM–9 855.0 3.264.0 57.6390 0.0200 0.1070 0.0245 0.1116 5 MM–3 860.0 3.264.0 57.9760 0.1400 0.1010 0.1830 0.2516 6 MM–10 880.0 ...

  • The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers

    Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović (2019)
    One of the most important prerequisites for the successful operation of the open-cast lignite mine is to carry out all the auxiliary works timely with the necessary quality. The most important and most commonly used auxiliary machines are bulldozers. Engaging time of bulldozers use is in direct relation with the coefficients of the time and capacity utilization of the continuous system for the excavation of coal and tailings, which indicates their importance. More than 100 bulldozers have been hired ...
    open-cast coal mine, auxiliary works, bulldozers, optimization, availability
    ... decreasing Area of constant Area ofincreased 3 failure rate , failure rate | failure rate G > » » д 1 ı — || ı о 1 || о || || — ı || ~ ı 1 c 1 ı ı 1 1 ı ı ı ı ı ı ı а зЖ - Time Figure 5. "Bath tub" curve, a relatioh of time апа failure rate 289 1.048E-29 1.05E-29 1 ...
    ... in Kolubara basin for ten years ог operation, only relating to dozers ог similar performances (internal marks C3 to C17) is presented in Figure 7. 1 0.9 - 0.8 - 0.7 - 0.6 - 05 - 04 - 0.3 - 1. уеаг 2. уеаг 3. уеаг 4. уеаг 5. уеаг 6. уеаг5 7. уеаг5 8. уеаг5 9. уеаг5 10. уеаг5 Figure ...
    ... excluding model TD 25 M, which exceeded the costs of 70 €/mh during 3" year of operation [1]. Regarding availability, dozer CAT D8R reaches 80% on 8" year, while availability of remaining dozers is reduced to this value between 3" and 5" year. Fact that open-cast mines are having sufficient number auxiliary ...

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit

    Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić (2015)
    ... Rv R1 < Rc < Rs. (8) Bearing in mind the formulas (4) and (5), formula (8) is reduced to: 1-n- c 1 -n 1 -n s Rn-k R- Rk-R sR k , (9) namely to: 1-n- c 1 -n 1 -n s R-n R- R-R sR , R1 < Rc < Rs. (10) No. 3, 2015 Mining & Metallurgy Engineering Bor 56 From the equation ...
    ... environment, where blasting operations were performed. 3 DEFINING THE STATISTICAL CRITERIA To evaluate the degree of correlation between recorded (measured) and calcu- lated data in this paper, the coefficient of linear correlation r [5] was used between the logarithm of reduced distance R ...
    ... Belgrade, pp. 199. [3] Simeunović D,.(1985): Mathematics, Faculty of Mining and Geology – Mining Department, Belgrade pp. 102- 103. [4] Ivanović B., (1973): Theoretical Statistics, Naučna knjiga, Belgrade, pp. 90 (in Serbian). [5] Simonović V., (1995): Introduction to the Theory of Probability ...

  • Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    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 indikatori

  • Geonasleđe Golije i Peštera

    Ljiljana V. Grujičić-Tešić (2017-09-01)
    Sprovedena istraživanja u ovoj studiji obuhvatila su izdvajanje, opis, evaluaciju i valorizaciju objekata geonasleđa u cilju razvoja istraživane oblasti sa stanovišta geonauka, geoturizma i geoekologije. Na izučavanom području objekti geonasleđa su evidentirani, interpretirani, vrednovani i kategorisani, dat je predlog promocije geoobjekata, i na kraju predložena dopuna inventara objekata geonasleđa Srbije.U protekle četiri godine, na kompleksu geotopa Golije i Peštera istražena su geološka svojstva stena (tip stene, starost, fosilni sadržaj, morfološke i hidrogeološke karakteristike itd.), na osnovu čega je bilo ...
    geodivezitet, geonasleđe, geoturizam, geokonzervacija, Golija, Pešter
    ... 11 2 3 5 79,6 11 4 5 3 5 4 43 4 5 5 19 2 2 3 1 2 12 2 3 5 80,4 12 3 5 2 5 4 38 4 4 5 18 2 1 2 1 1 8 2 0 2 68 Po te nc ija ln i o bj ek ti ge on as le đa 1 3 4 5 4 4 36 5 5 5 20 3 3 2 3 3 17 3 0 3 75 2 3 3 4 2 4 30 5 4 4 17 2 2 1 2 2 11 3 0 3 60,8 3 3 5 3 3 4 35 2 5 2 11 3 3 3 3 3 18 ...
    ... en os ti (S U ) St ep en z aš tit e (S Z) R = S U + S Z Po sto je ći o bj ek ti ge on as le đa 1 2 3 3 4 4 29 4 4 5 18 3 1 3 1 2 12 3 0 3 61,2 2 3 3 2 4 4 32 4 5 5 19 2 3 3 2 3 16 5 3 8 60 3 2 5 5 5 5 42 5 4 5 19 3 3 3 1 2 14 1 3 4 76 4 2 3 3 5 5 32 4 3 5 17 1 2 ...
    ... 18 3 0 3 67,6 4 3 5 3 3 4 35 4 5 5 19 3 3 3 2 2 15 3 0 3 71,6 5 3 5 3 5 5 40 3 5 2 11 3 3 3 3 2 16 2 0 2 71,2 6 3 5 3 5 5 40 4 5 5 19 2 2 3 2 2 13 3 0 3 76 7 2 3 4 4 4 30 3 5 5 18 3 3 3 3 2 16 3 0 3 65,6 8 2 4 4 3 4 30 5 5 4 18 1 2 3 3 2 13 3 0 3 63,5 9 3 4 4 5 0 34 4 5 5 19 3 3 3 1 2 14 ...

  • An Efficient Class of Iterative Root-Finding Methods with Applications

    Dejan Ćebić, Nebojša Ralević (2021)

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains

    Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková (2014)
    carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys
    ... 552':?5] 3 35 [an:ca K::) (Pulla- rmomca) Early Tith. 90 — - - 8"C%} (Malmica) ı 155 2 25 3 3.5 4 UAZs9-1 Lao Eary Ti. (Pulla- [- (6) Eary Tih. E f _ -Tithonica) — ag (Pulla) Late Kim, (Borzai) [- Late Kim.(Molucc.) 44 - UAZs4-11C UAZs6-9 @ UA254–10I:_ 70 (59 @ UAZs 5-8 šnszzsaas UAZs 5-7 E ...
    ... CaCOy con- tent is about 36 wt%, ranging from 12 up to 69 wt% (Figs 3—5, 7, 8). Four microfacies were distinguished in thc spotted ra- diolarites (Figs 3—5, 7, 8): radiolarian-Bosifra wackestone, Bositra wackestone, radiolarian wackestone to packstonc and mudstone. They also contain sponge spicules ...
    ... radiolarites (up to 12 m thick) were assigned to the upper part of the Sokolica Radiolarite Formation (Figs 3—8; Lefeld ef a/., 1985). They are present in all oftthe 8 R.JACH E7TAZ. Uplazianska Kopa Sample 6"C{%} 8"O{[%-] CaCO, [wt%] Microfacies Calcareous DmO. Y q 45 2 25 3 35-6 -5 4 -3 -2 - O 0 ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... I 5 15 2 151515 5 12 2 121212 5 11 2 111111 5 10 2 101010 5 9 2 999 2 151211109 5 14 2 141414 5 13 2 131313 5 12 2 121212 5 3 2 333 2 1413123 5 10 2 101010 5 9 2 999 5 8 2 888 5 7 2 777 5 6 2 666 2 109876 5 12 2 121212 5 11 2 111111 5 6 2 666 5 5 2 555 5 2 ...
    ... 7}7{ 6}6{ 5}5{ 4}4{ 3}3{ 2}2{ 1}1{ 5 5 2 555 5 18 2 181818 5 13 2 131313 2 51813 5 13 2 131313 5 19 2 191919 5 4 2 444 2 13194 5 18 2 181818 5 16 2 161616 5 12 2 121212 5 6 2 666 2 1816126 5 19 2 191919 5 12 2 121212 5 17 2 171717 5 3 2 333 2 1912173 5 16 2 161616 ...
    ... ∆∂ − ∂ ∆∂ − ∂ ∂ ∂ ∆∂ − ∂ ∆∂ − ∂ ∆∂ − ∂ ∂ 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 8 8 13 8 18 7 13 7 7 7 19 6 18 6 6 6 12 6 16 5 19 5 12 5 5 3 17 4 16 4 4 4 11 4 14 3 17 3 11 3 3 3 10 2 14 2 2 2 10 1 15 1 10 1 1 C C C C C ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... I 5 15 2 151515 5 12 2 121212 5 11 2 111111 5 10 2 101010 5 9 2 999 2 151211109 5 14 2 141414 5 13 2 131313 5 12 2 121212 5 3 2 333 2 1413123 5 10 2 101010 5 9 2 999 5 8 2 888 5 7 2 777 5 6 2 666 2 109876 5 12 2 121212 5 11 2 111111 5 6 2 666 5 5 2 555 5 2 ...
    ... 7}7{ 6}6{ 5}5{ 4}4{ 3}3{ 2}2{ 1}1{ 5 5 2 555 5 18 2 181818 5 13 2 131313 2 51813 5 13 2 131313 5 19 2 191919 5 4 2 444 2 13194 5 18 2 181818 5 16 2 161616 5 12 2 121212 5 6 2 666 2 1816126 5 19 2 191919 5 12 2 121212 5 17 2 171717 5 3 2 333 2 1912173 5 16 2 161616 ...
    ... ∆∂ − ∂ ∆∂ − ∂ ∂ ∂ ∆∂ − ∂ ∆∂ − ∂ ∆∂ − ∂ ∂ 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 8 8 13 8 18 7 13 7 7 7 19 6 18 6 6 6 12 6 16 5 19 5 12 5 5 3 17 4 16 4 4 4 11 4 14 3 17 3 11 3 3 3 10 2 14 2 2 2 10 1 15 1 10 1 1 C C C C C ...

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција

  • Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac (2023)
    ... 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 interval from 1 to 2. Taking into consideration the ...
    ... possible to calculate values of rock mass oscillation velocities for the corresponding reduced distances for models 1 — 5. In table 3, the review of reduced distances R , registered rock mass oscillation velocities v, is given, as well as calculated rock mass oscillation velocities from v,, to v,s ...
    ... J.; Sofranko, M.; Mudarri, T.; Buchla, I. Research of the technical seismicity due to blasting: works in quarries and their impact on the environment and population. Applied Sciences 2021, 11(5), pp. 2118. 3. Malbašić, V.; Stojanović, L. Determination of Seismic Safety Zones during the Surface ...

  • 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 ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... importance 9 1/9 (0.111) Very strong to extreme importance 8 1/8 (0.125) Very strong importance 7 1/7 (0.143) Strong to very strong importance 6 1/6 (0.167) Strong importance 5 1/5 (0.200) Moderate to strong importance 4 1/4 (0.250) Moderate importance 3 1/3 (0.333) Equal to moderate importance 2 1/2 (0.500) ...
    ... (1)–(3), depending on the data recorded. The conditions are rarely met to analytically determine the availability function in the form of Equations (4) and (5). To determine availability in this way, an appropriate IT structure for keeping track of time ti is required. In real terms related to complex ...
    ... following way (Figure 3): ‘A’ = (0(1), . . . ., 0(8), 1(9), 1(10)); ‘B’ = (0(1), . . . ., 0(5), 0.33(6), 1(7), 1(8), 0(9), 0(10)); ‘C’ = (0(1), 0(2), 0(3), 0.5(4), 1(5), 1(6), 0.5(7), 0(8), 0(9), 0(10)); ‘D’ = (0(1), 0(2), 1(3), 1(4), 0.33(5), 0(6), . . . , 0(10)); ‘E’ = (1(1), 1(2), 0(3), . . . , 0(10)) ...

  • 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 ...
    лес, лабораторија, SPT, корелације, параметри
    ... fine-grained to medium-grained, generally porly compacted and in places with poor TE PE CT MU KO - B AP CK M TE RR ES TI C - M AR SH o o o 2+ 81 3] 38 Z7 40 U5 0. 73 5+ 45 5. 85 5+ 02 8. 87 5+ 10 1. 37 00 Rv–5000 00 — >14.14 778 KB AP TA P- HR EM CT ...
    ... koToM L4 LA 3 —— c e i de as a y — a — NE O = O EPTa- 8 v a t m ; WO}L_a t : t O EPw=6 BW%_B Ta . - } 7 g . (gs,30) O LOR š Giii c '° BW2t-5 (95,8&) (95,02) (96,00) v v i M (94,93) LA LA < kJ kJ TE PE CT VU KO - B AP CK V TE RR ES TI C - M AR SH (97 3“) Tipatua necxoBira" ...
    ... leval. Silty to siltyasandy, wilh an increased content of carbonale powder along ihe SEIJ?W 3 5 (95,52) EPTw 31 BWZf 27 [96,&86}6,66) „_„_„ a : szt 28. CPT -35 ___ ——— — _— — _EKO •1 (92,38) a Ta A OOOAAA OVAN __b.»j_ ·Vb·—.»·_ OOO azı „ · - CPTw-&k0 [% 96) KB AP TA P- XO TO LI EH ...

  • 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 ...
    Metals and Alloys, Biochemistry, Biomaterials, Biophysics, Chemistry (miscellaneous)
    ... for Fig. 3. Means and standard deviations from three independent experiments are given. Fig. 5 MALDI-TOF mass spectra of porcine pancreatic PLA2 (0.125 mg ml�1) incubated with [RuCl2(bipy)2]Cl. Molar concentra- tions of the complex used were 10�5 M (A), 10�4 M (B), or 10�3 M (C) and time of incubation ...
    ... li sh ed o n 1 2 S ep te m b er 2 0 1 1 . D o w n lo ad ed b y N at io n al L ib ra ry o f S er b ia o n 1 9 /1 2 /2 0 1 7 1 5 :3 2 :0 7 . View Article Online This journal is c The Royal Society of Chemistry 2011 Metallomics, 2011, 3, 1056–1063 1059 at m/z = 496 ...
    ... measured after 0.5, 1, 2, 5, 15, 30 min. Means and standard deviations from three independent experiments are given. P u b li sh ed o n 1 2 S ep te m b er 2 0 1 1 . D o w n lo ad ed b y N at io n al L ib ra ry o f S er b ia o n 1 9 /1 2 /2 0 1 7 1 5 :3 2 :0 7 . View Article ...

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving