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Упит dcterms_creator_txt:Karydas Andreas G.

708 items

  • On the General Additive Divisor Problem

    Ivić Aleksandar, Wu Jie (2012)

  • Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia

    Biljana Abolmasov, Uroš Đurić (2021)
    klizišta, monitoring
    ... Repository is available at: www.dr.rgf.bg.ac.rs мар еИ је ЕЏКОЕМСЕО АТН ЕМ5 20 Editors V. P. MARINOS C. LOUPASAKIS C. SAROGLOU N. DEPOUNTIS G. PAPATHANASSIOU 3% EUROPEAN REGIONAL CONFERENCE OF THE INTERNATIONAL ASSOCIATION FOR ENGINEERING GEOLOGY & THE ENVIRONMENT Leading to Innovative ...

  • Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia

    Maja Milošević, Bojan Kostić (2022)
    ... OFFICIAL JOURNAL OF THE CARPATHIAN-BALKAN GEOLOGICAL ASSOCIATION Geologica Balcanica, Geological Institute, Bulgarian Academy of Sciences Acad. G. Bonchev Street, Bl. 24, 1113 Sofia, Bulgaria Fax: (00359-2) 8724-638; E-mails: geolinst@geology.bas.bg; gbalc@geology.bas.bg; editorial-office@ge ...
    ... 08%), TiO2 (0.35%) and BaO (0.03%). Higher values of the SiO2/Al2O3 mass ratios (2.97) together with LOI of 16%, CEC (84.5 mmol/100g) and SSA (661.8 m2*g–1) indicate a higher content of montmorillonite. Infrared spectrophotometry determined that the composition corresponds to a high content of montmoril- ...

  • Стабилизација косине приступног пута у југоисточном делу површинског копа „Ћерамиде“

    Никола Анђелић (2024)
    Експлоатација дацита као техничког камена се на површинском копу "Ћерамиде" врши дисконтуалном технологијом уз примену бушачко-минерских радова и високо капацитативне и габаритне опреме. Примане наведене технологије захтева стабилне и безбедне транспортне путеве како би се планирана производња и реализовала. Услед клизишта које је настало у зони главног извозног пута на површинском копу дацита "Ћерамиде" неопходно је обезбедити одговарајуће техничко решење којим би се косина пута довела у стабилно стање. У том смислу предложено је техничко решење са насипањем косине ...
    дацит, површинска експлоатација, стабилност косина, Бисхоп
    ... potreban za izradu nasipa 86 Nikola Anđelić Profil G - G' Dacit I fazc, zdrav 1 2] 0 Odloženi materijal Nasip 888993 Gabioni 490··——·—··—·—·—··—·—·—··—··—·—··—–· — e Li- < & < 4 e = — [55 ~ 4 Slika 4.10. Izgled profila G — G' sa naznačenom površinom stenskog materijala koji je potreban ...
    ... površinom stenskog materijala koji je potreban za izradu nasipa........aaaaaaaana a aaaaanaanaaa a aaaaaoaaaaaaaagatvvE Slika 4.10. Izgled profila G – G' sa naznačenom površinom stenskog materijala koji Je potreban za izradu nasipa........aaaaaaaana a aaaaanaanaaa a aaaaaoaaaaaaaagatvvE Slika 4.11 ...
    ... A MASA ŽČ%{DAŠ GRANICA INDEKS K]'”';:“'·*d VODE # <| P Tečenja Valjanja Plastičnosti | Konsistencije w 3 . DUBINA · Kasi dei g| W (%) W (%) H (56) :_ OEO (%) Bem } (g/om ) U-1 E .. (kota 555) Uzorak nijc plastičan 7.18 1.814 1.691 Tabela 1.4. Pregled vrednosti modula stišljivosti i parametara ...

  • Facing Engineering Problems in the Fragile Karst Environment

    Parise Mario, Closson Damien, Gutierrez Francisco, Stevanović Zoran (2014)

  • Cenozoic brittle tectonic history of the Kopaonik area (Internal Dinarides, Serbia)

    Mladenović Ana, Trivić Branislav (2014)

  • Faze formiranja grafičke dokumentacije rudnika sa površinskom eksploatacijom

    Milutinović Aleksandar, Ganić Aleksandar, Miljanović Igor (2013)

  • Vrednosni aspekt razlaganja proizvodnje u integrisanom privrednom društvu „Kolubare“ i „Tent“

    Maksimović Svetomir, Miljanović Igor, Živojinović Miljanović Ivana (2013)

  • Novi paleomagnetski podaci iz tercijarnih magmatita Fruške gore, Srbija

    Cvetkov Vesna, Lesić Vesna, Vasković Nada (2012)

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja

    Anđela Jovanović (2024)
    Predmet i cilj pisanja ovog rada su sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja. Prilikom ovih istraživanja, ispitivan je sistem REE2O3–V2O5–KF, gde REE predstavlja trovalentni katjon izabranih elemenata retkih zemalja (Y, Sm, Eu, Gd, Er, Yb). Ovo istraživanje bazirano je na sintezi kristala, nakon čega su dobijeni kristali posmatrani pod binokularnom lupom, analizirani metodom rendgenske difrakcije na polikristalnom materijalu (XRPD) i metodom skenirajuće elektronske mikroskopije sa energetsko-disperzivnom spektroskopijom (SEM-EDS), kako bi se utvrdile karakteristike dobijenih kristala. ...
    elementi retkih zemalja, sinteza kristala metodom fluksa, vanadati alkalnih metala, rendgenska difrakcija, SEM-EDS metoda

  • Subsurface dams as a solution for supplementary recharge and groundwater storage in karst aquifers in arid areas

    Stevanović Zoran (2014)

  • Predlog novog koncepta za algoritamski pristup upravljanju rizicima u površinskoj eksploataciji

    Miljanović Igor, Milutinović Aleksandar, Kirin Snežana, Gajić Grozdana (2013)

  • Long-term planning methodology for improving wood biomass utilization

    Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković (2019)
    The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...
    Long-term planning methodology, Forest biomass, MINLP, Backcasting

  • Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study

    Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2023)
    Recently, nanocrystal dispersions have been considered as a promising formulation strategy to improve the bioavailability of the deuterated pyrazoloquinolinone ligand DK-I-56-1 (7‑methoxy-2-(4‑methoxy-d3-phenyl)-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one). In the current study, the freeze-drying process (formulation and process parameters) was investigated to improve the storage stability of the previously developed formulation. Different combinations of lyoprotectant (sucrose or trehalose) and bulking agent (mannitol) were varied while formulations were freeze-dried under two conditions (primary drying at -10 or -45 °C). The obtained lyophilizates were characterized in terms ...
    Pharmaceutical Science
    ... T__= 153.27 *C peak s -48 AH = 162.09 J/g - o i-] o -9 -0.66 = [} —-1.32 > < > -1.98 Š | T_= 154.03 *C % -2.64 |- AH = 77.71 J/g _ šl:) | ii L ii L ii L | L L ı| 0.0 | iii -2.6 -- - -5.2 | J T__= 189.87 *C | peak 8L AH = 126.15 J/g | . L || - l L || L : ıj 0 50 100 150 ...
    ... a) 0 50 100 150 200 T T T T+M 3+2. -0.32 -0.64 -0.96 T_ .Z 138.06 "C peak -1.28 AH = 58.46 J/g -0.47 -0.94 T,= 31.38*C -1.41 T... — 152.60 C -1.88 peak AH = 78.06 J/g He at Fl ow (a .u .) , en do do wn -0.55 -0.66 -0.77 -0.88 0 50 100 150 200 Temperature ...
    ... vibrational spectra of sucrose. Carbohydr. Res. 361, 212–218. https://doi.org/10.1016/j.carres.2012.07.009. Bruni, G., Berbenni, V., Milanese, C., Girella, A., Cofrancesco, P., Bellazzi, G., Marini, A., 2009. Physico-chemical characterization of anhydrous D-mannitol. J. Therm. Anal. Calorim. 95 (3) ...

  • Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content

    Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)
    Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...
    Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugs

  • Proračun osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E

    Luka Nikolić (2024)
    Površinska eksoloatacija ležišta mineralnih sirovina, a posebno uglja (lignita) vrši se primenom različitih rudarskih mašina. U zavisnosti od tipa ležišta, rudarsko-geoloških uslova, ekonomske analize i sl. koriste se sistemi sa kontinualnim ili diskontinualnim načinom rada.Kod kontinualnih sistema, primenjuju se kompleksne rudarske mašine kod kojih se proces odvija neprekidno odnosno bez ciklusa utovara, transporta i odlaganja i najčešće rade u sve tri smene. Rotorni bageri i bageri vedričari, transporteri sa gumenom trakom, odlagači ili deponijske mašine čine tkz BTO ili ...
    rudarstvo, rotorni bager, ugalj, ShRs 1300
    ... 2318[kNm] Pb- bočna komponenta otpora na kopanje P, = (0,25 — 0,50) • Pt = 0,45 • 273000 = 122850|N] Moment otpora od nagnutosti: Ma=g* (mgs + m„) * T} * simy My = g * (300 + 6) « 1,1 * sin3* = 173[kNm] mes- masa gornjeg okretnog stroja bagera mu- masa materijala na rotornoj streli ri- rastojanje ...
    ... okretanja do težišta okretnog dela gornje gradnje Moment trenja u oslono-okretnom uređaju: R 2*Yk Ađt = 0,01 * g* (Ađa +]Mys) * * f.* ]%r * ];k 1,815 2*0,054 M, = 0,01 « g * (300 + 6) * * 0,1 * 1,25 * 1,25 = 79{|kNm] R- poluprecnik obrtno-oslonog kruga meren do ose kružne staze rk- poluprečnik ...
    ... Konstrukcija rotornog bagera... 3.2.1. Konstrukcija rotornih bagera tipa A aaaaaaaaeeaeaaeaaeaaaativk 13 3.2.2. Konstrukcija rotornog bagera tipa B ...G aeaaaaaaanaeeaeaaaaaeaatativk 16 3.2.3. Konstrukcija rotornog bagera tipa C .. ananaaaaaaaeeaaaaaeaaaeaaaakivk 18 3.3. Osnovne komponente rotornog ...

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    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 ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... Molecular and crystal structures of monoclinic porcine pepsin refined at 1.8A resolutions. J Mol Biol 1990;214:43—170. 8] Cooper JB, Khan G, Taylor G, Tickle IJ, Blundell TL. X-ray analyses of aspartic proteinases. II. Three-dimensional [9 10 11 12 13 14 15 16 17 18 19 ...
    ... were prepared in distilled-deionised water. Dialysis bags were prepared by boiling and rinsing in distilled-deionised RIGHTSLIMKMK&~Ž --| zj g s = 6 = || Fa Š F1 || -| |-s} e --| = > 5 E 8 o 9 H i 5 | 9 -i : i:| |-i | P 3 ' o F| FI o [= i F Š |} i Jo ...
    ... diluted with sample buffer in ratio 1:1 (v/v) and applied on gel in volume of 20 uL. Visualization was performed with Commassie Brilliant Blue G-250 dye. The gels scanned and processed using Corel Draw 11.0 software package. Quantification of electrophoretic mobility of the molecule is carried ...

  • Nonequilibrium athermal random-field Ising model on hexagonal lattices

    Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević (2021)
    Изингов модел, хексагонална решетка

  • Upper Miocene Serbian lignites - insights from petrological and biomarker composition

    Stojanović Ksenija, Životić Dragana, Šajnović Aleksandra, Cvetković Olga (2013)