Претрага

Упит dcterms_creator_txt:Dejan N. Radivojević

1076 items

  • Poboljšanje geotehničkih uslova izgradnje nasipa upotrebom geosintetika

    Anastasija Radovanović (2024)
    Za potrebe izrade rada na Master akademskim studijama ,,Rudarsko-geološkog fakulteta,,, studijskog programa Geotehnika, pod mentorstvom prof. dr Gordane Hadži-Niković , izvršena je detaljna analiza stabilnosti kosina nasipa na Vranjskoj petlji. Geotehnička istraţivanja i ispitivanja terena izveo je “Zavod za geotehniku iz Instituta za puteve a.d. Beograd”, a investitor je “Javno preduzeće, Putevi Srbije”.Metodološki pristup koji je korišćen za analizu stabilnosti kosina nasipa jeste kabinetsko istraživanje dostavljene dokumentacije i geostatički proračuni analize stabilnosti kosina nasipa, korišćenjem savremenih softverskih alata.Krajnji zaključak izvedenih istraţivanja je da ...
    tlo, nasip, analiza stabilnosti, faktor sigurnosti, geosintetici
    ... Force=71.3479 kN Driving Horizontal Force=103.153 kN 30 60 70 80 90 10\ 90 70 60 50 Safety Factor 0.000 0.500 O OO N N O — N I o ı O Material Name .000 .500 .000 .500 .000 .500 .000 .500 .000 .500 .000+ Unit Weight (kN/m3) Strength Type ...
    ... Strength Type %::7::;'; Phi | Water Surface | Hu Type | Ru Nasip 18 Mohr-Coulomb [n] 32 None [n] Pr-gp IBl 19 Mohr-Coulomb [} 24 None [} pr-sg |D 19.5 Mohr-Coulomb [} 33 |Water Surface | Constant PL-ps |} 19 Mohr-Coulomb [n] 33 | Water Surface | Constant PL-LP |} 20 Mohr-Coulomb | ___24 — | 21 |Wa ...
    ... Strength Type %::7::;'; Phi | Water Surface | Hu Type | Ru Nasip 18 Mohr-Coulomb [n] 32 None [n] Pr-gp IBl 19 Mohr-Coulomb [} 24 None [} pr-sg |D 19.5 Mohr-Coulomb [} 33 |Water Surface | Constant PL-ps |} 19 Mohr-Coulomb [n] 33 | Water Surface | Constant PL-LP |} 20 Mohr-Coulomb | ___24 — | 21 |Wa ...

  • FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... 3030 cm ! and band at 3018 cm ! represent vs(N-CHx) vibrations (Madejova et al., 2009), alttough some authors state that this band at 3018 cm ! originate from v.(N-CHx) vibrations (Li et al., 2008). Shoulder at 2945 cm"! originates from overlapping v.(N-CHs) with va(CHhx) vibrations (Madejova et al ...
    ... between PTMA* cations and montmorillonite (Fig. 1e). The band at 1594 cm"! disappeared, probably as a result of the interaction between n electrons of the phenyl ring and n celectrons of the oxygen in the tetrahedral layer of the montmorillonite (Majdan et al., 2009). Also, the band at 1300 cm"! disappeared ...
    ... e takes place through the interaction between the aromatic benzene ring of S-metolachlor and the aromatic benzene ring of the organic complex (nm-n bonds). Also, the formation of a hydrogen bond occurs between the molecules of S-metolachlor and the molecules of water 329 SERBIAN SOCIETY OF SOIL ...

  • Отварање и припрема лежишта за примену коморно-стубних метода откопавања

    Никола Станишић (2024)
    Циљ мастер рада је да кроз теоријски преглед и практични пример, прикаже процес отварања и припреме лежишта за примену коморно-стубне методе окопавања. Предмет рада је мало лежиште олово-цинкане руде, а од варијација коморно-стубних метода откопавања, изабрана је коморно-стубна метода етажног откопавања са откопавањем одoздо на доле. Рад се бави темама одабира и описа начина отварања и припреме лежишта, методама откопавања, технологијом израде просторија и откопавања лежишта, организацијом рада и проценом трошкова и економичности експлоатације.
    коморно-стубна метода, отварање, припрема, технологија, откопавање
    ... Ni(Mecem). 3a OBO BpeMe yTPoIH ce HajiHHia: N, =n n N, nadnica Ine je: nr — Opoj pajiHHKa JIHeBHO; nra — Opoj paniHHx JaHa MeceuHo (25); — BpeMe Hy3pajtle XOJIHHKa (Mecenb). VuuHak Ha H3pajui ripocropuje Ouhe: Ui = N m /nadnici n OJUHOCHO: n · bi —,nadnica /m IIpaka3 npopauyHarux ...
    ... - - -| = = Š | Mu ac oB Ha no Tp ot ti Wb a yJ ba K o n n u n H a H 3 M H H H p a H o O r Cp ej ub a Jn yk HH a T p a H c n o p r a K a n a u u r e r K a M u H o H a (3 a /I Ba Y k y n H o Bp eM e yr oB ap a H Uu ac oB Ha no Tp ot im ba ro pH ...
    ... Hapajny ] m nojrmaeMHe npocropHje: n =—_—, [mš/min] CneradauHa norportma npu0opa 3a Oynrtepe: 56 Ine cy: N – ykynan 0poj H3OynrteHax OyntoTuHHa; lb — nyxxaHa OymoTHHe; n – KoeQurujenr Hckopnmihema Oymrnrune (0,9). HopwarnuB ekcrmo3HBa H3HOCH: m= [kg/m} n Ine je: In — eeKTHBHa nyxxaHa ...

  • 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 ...
    Fuzzy theory, hydraulic excavator, selection, quality of service, asset management

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... highest value of compressive strength (171 N/mm? in a dry state), whereas Cretaceous allo- chemical limestones are generally of moderately high compressive strength according to their arithmetic mean (Tisnica 144 N/mmz, Struganik 134 N/mmz, and Skrzut 135 N/mm?; Fig. 4c). The values of compressive ...
    ... 00 PIO 0 0 0 089% [ 9881 6 t6 [0} 00 \J x O c 6L9% I-DI % (An) (quuo O/6000) | (UMGI/N) (%0) 3SOJJ | (UIUH/N) (\0) 10JBA (Juuuu/N) (*9) Aup - d) (ssvur Jo ssol) | uopdaosqe - d) - (Hu/9%)(dgZ) - („yS%)(dS'Z) (4y) OA1SeIqe IOAA | UjBUOJS ...
    ... _ c O _ _ OtP9% I-LS HOJI [44] 891 [4:]] 00 x LI O I 069% 9-%S % (An) („uuO O/,U10) (QUHUI/N) (%0) 1SOJJ (QUIUI/N) (20) 1910A (QUIUI/N) (50) AJp - 2 (SSeuum JO Sso|) | uoOndujosqe %(d) · (,u/9%)(dqZ) · („tu/8%)(dSZ) (4gy) OAISeIqe IOAA ...

  • Производња и одржавање рударске опреме на примеру предузећа Колубара метал

    Вања Миловановић (2024)
    У раду је извршено пројектовање технолошког процеса израде вратила на стругу. Кроз теоријску анализу, дати су основни постулати обраде стругањем, стругови као машине алатке, врсте стругова, начини стругања и примењени алати. У практичном делу, дефинисани су редоследи операција и захвата, режими обраде, изабрана машина алатка и алати за све захвате и одређено укупно време обраде потребно да се направи финални производ. Вратило из студије случаја представља компоненту редуктора погона за копање роторног багера SRs.1200.24/4+VR.
    производно машинство, обрада метала резањем, израда вратила на стругу

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... Publications, 204, London, 119-135. Vujić, S., Grujić, M., Salatić, D., Radivojević, S., & Jelenković, R., (2005): Rudnik bakra Majdanpek: Razvoj, stanje, budućnost. Rudarsko-geološki fakultet, Beograd. 167 str. Warner, B.N., Shive, P-N., Allen, J.L., & Terry, C., (1972): A study of the hematite-ilmenite ...
    ... andezita sa lokaliteta Krivelj (propuštena svetlost, //N; publikovano u Luković et al., 2021). Slika 10. Asocijacija hemoilmenita (HI) i magnetita (Mgt) u hornblenda andezitu sa lokaliteta Krivelj (a – odbijena svetlost, vazduh, //N; b – BSE slika). HI Mgt a b ...
    ... mikrometarskom nivou prethodno potvrđena SEM metodom. Zbog specifične pripreme uzorka za In te n z it e t M – magnetit FI – ferijski ilmenit (hemoilmenit) Q – kvarc A – amfibol P - plagioklas In te n z it e t Eksperimentalni difraktogram WPPF magnetit WPPF hemoilmenit 37 TEM ...

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... orientation of the Cerna Fault, which becomes more N-S oriented (S2, Fig. 4). Within the main fault zone, Cerna-parallel faults truncate earlier dextral faults rotated clockwise and are associated with few normal faults (S2, Fig. 4). Furthermore, the main N-S oriented Cerna SSENNWWSWENE SN NESW NESWSENW ...
    ... Basins (S5, Fig. 4), where the N-S oriented Timok Fault separates the Forebalkan cover (Tithonian limestones) to the east from the Timok zone of the Getic unit (Turonian clastics) to the west. These Tithonian limestones are intensely deformed (Fig. 5d) by sub-vertical N-S oriented dextral strike-slip ...
    ... north, there is an extension in the N-S direction creating E-W oriented normal faults. Strike-slip faults accommodate the abrupt change of indenter margin-parallel component of displacement. When there is a more gradual change in displacements (like along the N-S oriented indenter margin, northernmost ...

  • 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)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... the goal to its fulfillment [31]. Energies 2019, 12, 2245 6 of 16 Energies 2019, 12, x FOR PEER REVIEW 5 of 16 1 1 1 2 1 n 11 12 1n 1 1 2 2 2 n 21 22 2n n 1 n 2 n n n1 n2 nn w /w w /w ... w /w a a ... a w /w w /w ... w /w a a ... a M= = ... ... ... ... ... ... ... ... w /w w /w ... w /w a ...
    ... Consistency Index (CI) is done using Equation (3). CI = (λmax − n) (n − 1) (3) where λmax represents the maximum value of the calculated matrix and is defined using Equation (4) while n is the number of analysed objects. λmax = 1 n n∑ i=1 λi (4) The Consistency Ratio (CR) is defined using the following ...
    ... Consistency Index (CI) is done using Equation (3). max(λ n)CI= (n 1) − − (3) where λmax represents the maximum value of the calculated matrix and is defined using Equation (4) while n is the number of analysed objects. n max i i=1 1λ = λ n (4) The Consistency Ratio (CR) is defined using the ...

  • Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica

    Natalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel (2019)
    Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and Technology

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... shape and size of n i Ra5 o — - particles in the landfill can be of great use in defining m:;';]on and selection || > M @523331 the phase composition and physical indicators of iušLte008| Y Horanalysis| municipal waste. In addition, physical properties of •n žž% M:s| ; H n pj ii r waste change ...
    ... following expressions: |. O ı_M H[l Ah (1—"0)F n=m An—n„—To Q) 1_Z H() w=w, — 4 G) m where: mx, mya — initial dry mass and mass of drained water Žuo, }a — Initial dry unit weight and dry unit weight in degradation stage no, n — initial porosity and porosity in a certain stage ...
    ... 1994). Parameter Mark Unit Relations Unit weight Y kN/m) Y=W/V=(I+w) ·Ya Void ratio e mš/m* e= V /V, = | ___I-n Unit weight W a of solid A kN/m* E i ——— particles Vs 1-n 'Volume water v m*/m* v= V Zw.J0 content -% V Yw Volume gas a m*/m* a _&_ n_w content -% a Saturation g m*/m* ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt (2015)
    General Earth and Planetary Sciences

  • Multi-word Expressions for Abusive Speech Detection in Serbian

    Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev (2020)
    Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...
    uvredljiv govor, govor mržnje, leksički izvori, višejezični leksikon, izrazi sa više reči
    ... expressions the most frequent are those with a structure V N (289), followed by V PREP N (124), V PRO N (52), V N PREP N (40). Again, this is a rough analysis because each group may contain syn- tactically very different expressions. For instance, the V N group contains besides frozen expressions, e.g. ode ...
    ... d nous, e.g. krava muzara ‘dairy cow’; N PREP N (25), a noun followed by a prepositional phrase, e.g. govno od čoveka ‘shit of a man’, roba s greškom ‘dam- aged goods’; A ADV N (11), adjectives as simile figures, e.g. glup kao noć ‘stupid as night’, N CONJ N (9), two nouns connected with a conjunction ...
    ... characteristic examples. phrases the most frequent pattern is A N (448), a noun preceded by an adjective that agrees with it in the number, the case and the gender, for instance belosvetska kurva ‘worldwide whore’. The other frequent patterns are: N N (50), usually a noun followed by a noun in the genitive or ...

  • 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
    ... grond suface dlevalion KBC BEŽANIJSKA KOSA TAT TA A ZEMUN NOVI GRAD UGRINOVAČKA ST AT' O N / ST AN | C A SH AFT V03 S I O N / S N I C ST AT' O N / ST AN | C A S A | O N / S AN | C A HOOEO Ls du O RTT TKE N I TTI ELe TIO KE IO O T— OO II |Loess deposits | awehy 102-104uwip. Tipauuwacr nO npauuH ...
    ... neckoBMTa K B A P T A P - XO JI OL IE H - Q, AJ 1y BV IJ AJ IH / Q U A T E R N A R Y - 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 ...
    ... – Tpehu xopu3ouT norpeGeHe aeun.o LAAA (y) - uerBprifxopuviaoHT neca N N – npocevat 6poj ynapa no yH poaykonan Ha 60% eHepreTcke edDukacCHOCTM poceuaH Opoj ynapa Marbem no ny6WH\ Cnuka 3-1. IIpoceunu 0poj yoapaua N, No no 0y0unu 45 4. IIPHKA3 PE3YJITATA HCTPA?XKHBAIbA Ha OcHOBy H3BCJICHHX ...

  • Knowledge and Rule-Based Diacritic Restoration in Serbian

    Cvetana Krstev, Ranka Stanković, Duško Vitas (2018)
    In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).
    diacritic restoration, morphological dictionary, corpus, word n-grams, local grammars
    ... studies, 43(5-6):907–928. Guarino, N. and Welty, C. A. (2009). An overview of ontoclean. In Handbook on ontologies, pages 201–220. Springer. Guarino, N., Oberle, D., and Staab, S. (2009). What is an ontology? In Handbook on ontologies, pages 1–17. Springer. Guarino, N. (1998). Some ontological principles ...
    ... (mesh). Bulletin of the Medical Library Association, 88(3):265. Loukachevitch, N. and Dobrov, B. (2014). Ruthes linguistic ontology vs. russian wordnets. In Proceedings of Global WordNet Conference GWC-2014. Loukachevitch, N. and Dobrov, B. (2015). The sociopolitical thesaurus as a resource for automatic ...
    ... Russia, pages 340–349. Loukachevitch, N., Shevelev, A., Mozharova, V., Dobrov, B., and Pavlov, A. (2017). Ruthes thesaurus in detecting russian paraphrases. In Conference on Artificial Intelligence and Natural Language, pages 242–256. Springer. Loukachevitch, N., Lashevich, G., and Dobrov, B. (2018) ...

  • From post-disaster landslides inventory to open landslides data

    Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić (2021)

  • Geotermalni potencijal pliocensko-kvartarnih sedimenata na teritoriji opštione Novi Beograda

    Matija Ognjanović (2024)
    Svrha ovog rada određivanje geotermalne potencijalnosti teritorije opštine Novi Beograd. Određivanje geotermalne potencijalnosti Novog Beograda predstavlja kvantifikovanje geotermalnih resursa na njegovj teritoriji.Analizom opštih karakteristika tj. geografskim položajem, klimatskim, hidrološkim, hidrografskim i geomorfološkim karakteristika, zajedno sa geološkim, hidrogeološkim i opštim geotermalnim karakteristika istražnog područja stiče se jasan zaključak o istražnom području.U savremene geotermalne indikatore, u vidu povećane temperature podzemnih voda, pre svega zbog efekta toplotnog ostrva i sintezom svih pređašnjih podataka, kao podloge za dalju, detaljniju, analizu dolazi se do koraka ...
    geotermalna energija, geotermalni potencijal, Novi Beograd, subhidrogeotermalni resursi
    ... strukture. Na širem istražnom terenu trebalo bi izdvojiti Kalemegdanski rased, koji zaparavo predstavlja sistem subparalelnih raseda (Matenco and Radivojević, 2012), na čijem povlatnom krilu je razvijena Savska polu- depresija. Strukture se pružaju od Kalemegdana ı Ušća ka Makišu duž Save, odnosno ...
    ... imaju informativan karakter. N. Milojević je vršio hidrogeološka istraživanja Srema zahvativši jedan deo beogradske teritorije. Veliki doprinos . poznavanju hidrogeološke problematike šireg područja Beograda dala je monografija N. Milojevića, B. Filipovića ı N. Dimitrijevića (1975) „Hidrogeologija ...
    ... osmatranja 1992-2022. god u?C Srednja mesečna temperatura vazduha 20.0 |} B JAN FEB MAR APR MAJ JUN JUL AVG SEP OKT NOV DEC Meseci [7 o o ~ n o = [? o = o o Te mp er at ur a va zd uh a (" C) o o Slika 3. Grafički prikaz srednjih mesečnih i godišnjih femperature vazduha za ...

  • The role of non-covalent intermolecular interactions on the diversity of crystal packing in supramolecular dihalopyridine–silver(i) nitrate complexes

    Sunčica Roca, Lucija Hok, Robert Vianello, Mladen Borovina, Marijana Đaković, Ljiljana Karanović, Dražen Vikić-Topić, Zora Popović (2020)
    Six novel 1 : 2 complexes of silver(I) nitrate with 2,5-, 2,6- and 3,5-dihalopyridines (halo stands for chlorine and bromine) were prepared by the reaction of an aqueous solution of AgNO3 and the corresponding pyridine derivative in a water–alcohol solution. In spite of having analogous empirical formulae, they reveal intriguing structural differences, except [Ag(NO3)(2,5-Cl2py)2]n (1) and [Ag(NO3)(2,5-Br2py)2]n (4), which are isostructural. In contrast, [Ag(NO3)(3,5-Cl2py)2]2 (3) is dimeric, while its Br analogue [Ag(NO3)(3,5-Br2py)2]n (6) is polymeric in nature, being the ...
    Сребро(I), дихалопиридин, нитрат, кристалне структуре, халоген-халоген интеракције

  • Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)

    Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)
    Paleontology, Stratigraphy, Ecology, Evolution, Behavior and Systematics