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During the steel production from secondary raw materials in the electric arc furnace, generation of the main intermediate of the process- dust from the electric arc furnace (EAF dust) occurs. This dust contains significant amounts of Zn and Fe, as well as Pb, Ca, Mn, Ni, Cu, Cd, Mg, Si, Cr, F, Cl and other elements and is considered hazardous industrial solid waste since it contains heavy metals. In order to separate Zn as a valuable component, hydrometallurgical treatment of EAF dust was investigated.The treatment consists of two stages: 1st stageis water leaching of EAF dust performed in order to remove water-soluble compounds, and 2nd stage is acid leaching in order to leach ZnO from EAF dust and obtain a ZnSO4solution. With optimal parameters of the water leaching process of EAF dust, the achieved leachingrates of water-soluble compounds are as follows: 80.84% Cl, 60.63% K, 52.95% Na, 18.23% Ca, while with acid leaching of the solid residue obtained after water leaching at optimal parameters achieved leaching rate of Zn is 82.34%. In addition to the economic aspect of this treatment where the separation of Zn from EAF dust is performed, the treatment also has an ecological aspect because the transformation of hazardous waste into non-hazardous waste is performed, which has a positive effect on the environment.

Морфологије прахова сребра и бакра добијених електролитичким или не-електролитичким поступцима синтезе су биле корелисане са њиховом кристалном структуром. Морфологија електролитички синтетизованих честица је зависила од режима (потенциостатски и галваностатски) и параметара електролизе (врста електролита и примењене вредности пренапетости и густине струје), и од природе метала одређене вредностима густине струје измене и пренапетости за реакцију издвајања водоника. Процесима електролизе сребра добијене су следеће форме честица: грануле, игличасти и 2Д дендрити налик папрати (нитратни електролит) и 3Д дендрити налик стаблу бора (амонијачни електролит). Честице сребра састављене од компактних агломерата приближно сферичних зрна су добијене хемијском синтезом са хидразином као редукционим средством. У зависности од количине издвојеног водоника, 3Д дендрити налик стаблу бора и карфиоласте честице добијене уклањањем талога са структура налик пчелињем саћу су добијене потенциостатским режимом електролизе бакра. Галваностатски добијени 3Д дендрити бакра су се завршавали глобулама, указујући на формирање новог типа дендрита бакра. Прах бакра добијен не-електролитичком методом састојао се од агломерата приближно сферичних зрна. Преференцијална оријентација честица сребра и бакра се мењала од строге (111) у игличастим дендритима, до случајно оријентисаних кристалита у честицама са сферичном морфологијом (3Д дендрити, честице добијене не-електролитичким методама, карфиоласте честице), и (220) и (311) преференцијалне оријентације у карфиоластим честицама бакра добијеним галваностатским режимом. Анализирана је специфична површина и расподела величине честица прахова сребра и бакра, и утврђено је да прахови са сферичном морфологијом имају највећу специфичну површину и најуниформнију расподелу величине честица., Morphologies of silver and copper powders obtained electrolytic and non-electrolytic methods of synthesis were correlated with their crystal structure. Morphology of electrolytically synthesized particles depended on regimes (potentiostatic and galvanostatic) and parameters of electrolysis (kind of electrolyte, overpotential and current density), and on nature of metals determined by values of the exchange current density and overpotential for hydrogen evolution. The following forms of Ag particles are obtained by electrolysis: granules, needles and the 2D fern-like dendrites (nitrate electrolyte), and the 3D pine-like dendrites (ammonium electrolyte). Ag particles composed of compact agglomerates of approximately spherical grains are obtained by chemical synthesis with hydrazine as reducing agent. Depending on amount of evolved hydrogen, 3D pine-like dendrites and cauliflower-like particles obtained by removing the deposits from the honeycomb-like structures are obtained by Cu potentiostatic electrolysis. The galvanostatically synthesized 3D Cu dendrites finished by globules, indicating formation of novel type of Cu dendrites. Cu powder obtained by non-electrolytic method consisted of agglomerates of approximately spherical grains. The preferred orientation of Ag and Cu particles changed from strong (111) in needles to the random oriented crystallites in the particles with spherical morphology (3D dendrites, no-electrolytically synthesized and cauliflower-like particles), and (220) and (311) preferred orientation in galvanostatically obtained cauliflower-like Cu particles. Тhe specific surface area and the particle size distribution of Ag and Cu powders is analyzed and it was found that the largest the specific surface area and the most uniform the particle size distribution had particles with the spherical morphology.

The subject of the study of the doctoral thesis The Tragic in the short fiction of Serbian realism is the presence and the shaping of the phenomenon of the tragic in the Serbian realistic short fiction. The tragic is followed through the thematic structure, the analysis of historical and social conflicts, and the confrontation between public and private, objective and subjective reality, internal conflicts framed within the personality of individuals. The research of the manifestation of the tragic in the art form of short fiction and aesthetic effects involves the processing of tragic motifs, chronotopes, psychological portrayal of tragic characters, symbolic images, scenes, stylistic approach and narrative strategies. The primary aim of the paper is to explore the tragic aspects in the Serbian narrative prose of the epoch of realism on an appropriate corpus, describe the way in which it is shaped in the Serbian realistic short fiction, and discover the nature of the tragic from a social, ontological and existential aspect. The research would provide the answer to the question of how the phenomenon of the tragic goes beyond the former genre conditionality and goes to the artistic world of the short fiction. The research includes the short stories of Stefan Mitrov Ljubiša, Jakov Ignjatović, Milovan Đ. Glišić, Milorad Popović Šapčanin, Laza K. Lazarević, Janko Veselinović, Simo Matavulj, Svetolik Ranković, Branislav Nušić, Radoje Domanović, Stevan Sremac, Bora Stanković, Petar Kočić and Ivo Ćipik. Aspects of the tragic in their work are examined within the theoretical framework of philosophical and aesthetic reflections all the way through to the modern times. The paper uses a pluralistic approach with a dominant analytical-interpretative, comparative, structuralist and psychoanalytic method. Linguo-stylistic, sociological, historical and biographical methods are also applied. It is concluded, based on the research, that there is no absolute reason for the genre cond

Doktorska disertacija predstavlja rezultat istraživanja mogućnosti korišćenja šipurka (Rosa spp.), gloga (Crataegus spp.) i trnjine (Prunus spp.) u biomonitoringu zagađenja vazduha i fitoremedijaciji kontaminiranog zemljišta. Na ispitivanom području Bora i okoline, na različitim udaljenostima od rudarsko-metalurškog kompleksa za proizvodnju bakra, odlagališta raskrivke sa površinkih kopova ruda bakra i flotacijskih jalovišta, obavljeno je uzorkovanje zemljišta i biljnog materijala. Koncentracije elemenata (Al, As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb i Zn) određivane su u zemljištu iz zone korena, kao i delovima (korenu, granama, plodovima, neopranom i opranom lišću) sve tri biljne vrste. Prekoračenje zakonom propisanih graničnih i remedijacionih vrednosti elemenata u zemljištu i visoke vrednosti faktora obogaćenja, ukazivale su na kontaminaciju zemljišta iz zone korena šipurka, gloga i trnjine, u najvećoj meri sa As, Cd i Cu (nešto manje sa Mo, Pb i Zn), na mestima uzorkovanja u blizini izvora zagađenja ili na pravcima dominantnih vetrova. Analizom i upoređivanjem koncentracija elemenata u biljnom materijalu šipurka, gloga i trnjine, utvrđeno je da je lišće sve tri biljne vrste najpogodnije za identifikaciju područja sa najvećim stepenom zagađenja (osim Zn za čiju su se indikaciju osim lišća kao pogodni delovi pokazale grane i koren). Na minimalno jednom mestu uzorkovanja za svaku biljnu vrstu, oprano lišće je sadržalo As i Cu u toksičnim koncentracijama. Na osnovu vrednosti faktora obogaćenja biljnog materijala, koje su se kretale od značajnih do ekstremnih za As, Cu i Pb, i u kategoriji umerenih za Fe, Mo i Zn na većini mesta uzorkovanja, zaključeno je da je rudarsko-metalurška proizvodnja bakra primarni izvor ovih elemenata u životnoj sredini ispitivanog područja, dok se uticaj na veće koncentracije Mn, Ni i Cr primećivao jedino u uzorcima sa najzagađenijih mesta. Prisustvo elemenata u atmosferskoj depoziciji, na osnovu razlika koncentracija elemenata u neopranom, The doctoral dissertation represents the results of the research which indicate possibilities of using wild rose (Rosa spp.), hawthorn (Crataegus spp.) and blackthorn (Prunus spp.) for biomonitoring of air pollution and phytoremediation of contaminated soil. In the study area of Bor and its surroundings, sampling of soil and plant material was performed at various distances from the mining-metallurgical complex of copper production, ore waste heaps from the copper mines and flotation tailing ponds. Element concentrations (Al, As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb and Zn) were determined in the root zone soil, as well as in the parts (root, branches, fruits, unwashed and washed leaves) of the examined plant species. Exceedings of the limit and remediation values for the element concentrations in the soil, proposed by the Serbian Regulation, and the high values of the soil enrichment factors, indicated the contamination of the root zone soil of wild rose, hawthorn and blackthorn, mostly with As, Cd and Cu (somewhat less with Mo, Pb and Zn) at the sampling sites in the close vicinity of the pollution sources or in the prevailing wind directions. By analyzing and comparing the element concentrations in the plant material of wild rose, hawthorn and blackthorn, it was concluded that the leaves of all the three examined plant species are the most adequate for distinguishing the areas with the highest pollution degrees (except for Zn, in which case the branches and root, besides leaves, are shown as suitable). At least at one sampling site, for each plant species, the washed leaves contained As and Cu in the toxic concentrations. Based on the values of enrichment factors for plant material, which ranged from significant to extreme for As, Cu and Pb, and moderate for Fe, Mo and Zn at the most sampling sites, it was concluded that the mining-metallurgical copper production was the primary source of these elements in the environment of the study area, while the influence on h

Doctoral thesis The artistic image of the city in the prose of Serbian realism has a chrono tope of the city, town and borough as a subject of its studying, in the prose of Serbian realism, visibly marginalized in literary criticism and literary history. Illuminating the marginalized artistic image of the city, showing that urban prose carries an artistic image of the city's diachronical development of city/town, first of all in a comparative relationship with the rural environment, as well as the existence of a relationship and condition of the artistic image of life in the city in historical, social political and social circumstances is a primary goal of scientific research. Researching material is primarily made up of prose: Jakov Ignjatović, Stefan Mitrov Ljubiša, Milovan Glišić, Janko Veselinović, Laza Lazarević, Stevan Sremac, Simo Matavulj, Svetolik Ranković, Radoje Domanović, Petar Kočić, Ivo Ćipiko as well as Borisav Stanković, Ilija I. Vukićević and Milorad Popović Šapčanin. The artistic image of private live is interpreted using analytical-synthetic method, as well as a comparative method through cultural models and the city system of the moral values, the theme of education, the topos of the family, charsia, cafes, government and its representatives, the village-city relations and the theme of the city peripherals. The theme is also explored through problems of characteristic characters that significantly contribute to the overall artistic image of private city life. Also, the social historical and social economic background of the artistic images of private life is analyzed. Based on an examination of the narrative discourse of „city prose“, it is shown that the private life of the city plays an important role in shaping the entire poetic-aesthetic artistic image of the life of realism, and in the realization of a new synthesis of the thematic field in the writings of the writers of this era. It is shown that, under the influence of social economic turm

In this paper we examined different ways of construction of narrative identity in novels of David Albahari and Vladimir Tasic written in Canada, in emigration. The impact of social, historical and cultural context on the choice of narrative procedures were analyzed, as well as the impact of emigration discourse. Based on the presentation of space and the image of Other we examined different possibilities of spacious identification, as well as the identification which are developed out the relationship to Other. On the textual level, the choice of the topic, the current historical moment and the experience of emigration, to a certain extent, influences the selection of certain narrative procedures, such as the presence of homodiagesis, retrospektive and iterative narration, frequent change of narrative perspective.’ On the other hand, the construction of narrative identity is olso realized on the basis of paratextual surroundings, primariliy on the basis of diffrent ways in which the opus of those autors was presented to the publik, as well as on the baisis of context. In this peper as the primary context wich structuring the narrative identity it's being analyzed the postmodernism in it’s manifestation and theoretical form.

Even though the figure of the active reader has been repeatedly emphasized as the foundation of romanesque poetics of Milorad Pavić, the review of scientific works on the literary creation of this writer points to the absence of a monograph which encompasses Pavić’s entire romanesque work from the point of view of contemporary reading theories. Consequently, scientific studies on Pavić’s works have paid insufficient attention to determining the types of readers of his novels and selecting criteria for their possible grouping. The aim of this dissertation is to determine the types of readers in Pavić’s novels, precisely describe their characteristics, functions as well as their systematization in the context of contemporary reading theories. Due to the complex nature of the problem itself and the description of readers in the novels of Milorad Pavić, it was necessary to take into account the literarytheoretical considerations of encoded readers in the diachrony, and then to see them through the modifications within the poetics of Milorad Pavić, both a writer and a scientist. Apart from the contextualization within contemporary literary theories, from its objectivistic, phenomenological, semiotic, receptionist, to psychoanalytical, rhetoric and cognitive orientations, the research also aims at determining unique concepts of readers promoted in Pavić’s novels. Considering the domain of the theory of literature, the research aims at the review and revision of existing conclusions on literary theories oriented towards the reader and their active role in constituting the meaning of a literary work. Furthermore, its aim is to expand this corpus with theoreticians from the end of the 20th and the beginning of the 21st century who deal with the problem of reading and the role of the reader in a given process, as well as to classify them, which would include theoreticians whose works deal with the phenomenon of the reader’s reaction, using criteria such as the reader’s positi

U radu Slika – žanr srpske realističke proze sagledavaju se tematski i strukturalni aspekti žanra slike u književnosti srpskog realizma. Primenom istorijske, strukturalističke, marksističke i poststrukturalističke metodologije ispituju se načini uvođenja društvenih, ideoloških i istorijskih oblika mišljenja u strukture književnih dela, koja su objavljivana u periodu od 1860. godine do kraja 19. veka (Jakov Ignjatović, Milorad Popović Šapčanin, Đura Jakšić, Milan Đ. Milićević, Janko Veselinović, Ilija Vukićević, Svetolik Ranković, Simo Matavulj, Stevan Sremac, Radoje Domanović). Kako do danas nije napisana obuhvatna studija, kojom bi bio određen pojam žanra slike, literarno, socijalno i političko poreklo, te evolucija i komparativistički aspekti ovog žanrovskog modela otvaraju mogućnosti za tumačenje ne samo razvoja realističkog žanrovskog sistema već srpske literature u celini. Osim ograničenja nacionalnim, žanrovskim i hronološkim kriterijumom, predmet istraživanja određen je i tematskim aspektom odabranih tekstova, što uslovljava razvrstavanje žanra slike na zasebne podvrste (slike iz seoskog života, slike iz rata, slike iz istorije, slike iz učiteljskog života, slike iz lova, slike iz gradskog života i dr.). U radu Slika – žanr srpske realističke proze osobito će biti ispitani morfološki, narativni i retorički aspekti žanra slike: vrednost formalnih rešenja, žanrovska prožimanja, pripovedne strategije, sličnost strukturne organizacije sa delima likovne umetnosti, različitost u odnosu na srodne pripovedne oblike, uloga čitalačke publike, pomeranje ka virtuelizaciji naracije, učešće parodijskih sredstava. Ideološkom kritičkom orijentacijom obuhvatiće se: ukrštaj dokumentarnog i fikcionalnog, književni i neknjiževni kontekst, upliv ideoloških činilaca. Ključna strukturalna obeležja obuhvataju postupak „okvira‖, tehniku „skaza‖, hronotop puta, jedan događaj i jednog junaka, portret, opise eksterijera i enterijera, vizuelne jedinice u naraciji. Analitičkim i sintetičk, The work Image – a Genre of Serbian Realistic Prose, examines thematic and structural aspects of the genre image in the literature of the Serbian realism. It also examines the ways of introducing social, ideological and historical forms of thinking into the structure of literary works, published in the period from 1860 to the end of 19th century, by the application of historical, structuralistic, marxistic, and post-structuralistic methodologies – in regard to authors such as Jakov Ignjatović, Milorad Popović Šapčanin, Đura Jakšić, Janko Veselinović, Ilija Vukićević, Svetolik Ranković, Simo Matavulj, Stevan Sremac, Radoje Domanović. Until present it was not yet written a comprehensive study that would define the notion of genre images, its literary, social and political origins, as well as evolutionary and comparative aspects of this genre pattern, opening up the possibilities for interpreting not only the development of realistic genre system but also the Serbian literature as a whole. Beyond the limitations by national, genre and chronological criteria, this study subject is defined by thematic aspects of selected works conditioning determining the division of the genre images into separate sub-species (images of rural life, war, teacher’s life, from history, hunt, city life, etc.). This studyof the work Image – a Genre of Serbian Realistic Prose will particularly examine the morphological, narrative and rhetorical aspects of the genre: the value of formal solutions, genre permeation, narrative strategies, similarity of the structural organization with fine arts works, the difference in relation to related narrative forms, the role of the reading audience, the shift towards the visualization of the narration, and participation of the parody means. The ideological critique orientation will encompass: crossing documentary and fictional, literary and non-literary context, and influence of ideological factors. Key structural features include the frame procedure, the d

The title of the dissertation „Aspects of Christian spirituality in the poetry of Serbian Romanticism― clearly defines the subject of research. Serbian poets of Romanticism, Petar Petrovic Njegos, Branko Radicevic, Djura Jaksic, Jovan Jovanovic Zmaj and Laza Kostic, and other poets of this era, marked the prolific period of Serbian literature of the nineteenth century.The poets are interested in the man directed towards history, towards the ratification of national identity and finding the meaning of human existence in the cosmic order. Their texts provide an opportunity for understanding aspects of Christian spirituality, the development of religious motives and their movement towards the Bible, deviations from the Bible and the movement towards the ancient cosmogony. In recent decades, the review of man's relationship to national, religious and traditional Serbian culture raised many issues, which shows how current this topic is.

Теоријска категорија „поетика“ у датом истраживању укључује анализу неколико структурних елемената присутних у наративним текстовима Симе Матавуља. Примарно, теоријску елаборацију сижеа и мотива у изучавању принципа генезе и изградње сижеа, проблема уметничког простора и времена, функционално-стилског и идејно-тематског плана, сижејно-динамичких својстава јунака и жанровске специфичности. Иако се категорија „поетика“ узима у широком значењу, не претендује се на описивање и исцрпљивање свих могућих аспеката Матавуљеве поетике. Циљ истраживања усмерен је на проналажење поетичких координата које нису инцидентне, већ консеквентне а обједињују најважније аспекте у поетици Симе Матавуља (проблеми сижеа, хронотопа, композиције, жанра, морфологије јунака и структуре наративних облика), но и оних аспеката који омогућавају координацију неструктурних нивоа књижевно-уметничке целине (питања имплементације савремених књижевних митова, поступци карневализације, питање реалистичке мимезе и легитимитета лажи у реализму, осветљавање стилистичке категорије реализма са филозофске позиције)..., Theoretical category "poetics" in a given study includes an analysis of several structural elements in the narrative prose of Simo Matavulj. Primarily, theoretical elaboration of the syuzhet (sujet) and motifs in the study of principles of genesis and construction in syuzhet, the problem of artistic space and time, functional style and conceptual plan, dynamic properties of the hero and genre specifics. Although the category of "poetics" is taken in a broad sense, there is not tendency to include all possible aspects of Matavuljʼs poetics. The aim of the research is focused on finding the poetic coordinates that are not accidental, but a consequent and incorporate the most important aspects of the Simo Matavuljʼs poetics (syuzhet, chronotope, composition, genre, the morphology of a hero and structure of a narrative form). But also on finding those aspects that enable the coordination of non-structural levels in a literary scope (for example, issues of implementation of modern literary myths, cultural heritage of carnivalization, relation between realistic mimesis and legitimacy of lies in realism)...

The aim of this dissertation is to complete the study of Danilo Kiš’ literary work through a systematic approach to his essayistic opus: by insight into his topic preoccupations, problems and aporias of his early and mature essay writing, by perceiving po-ethical constants, connections with his belletristic work and the level of involvement in the modern idea trends of that period. Considering the fact that essay perfectly suited Kiš’ sensibility, but at same time it is a genre and a way of thinking/writing which is hard to define, the dissertation also discusses the genological characteristics of essay by means of substantial and relational theory, the writer’s understanding of its nature, essayism as a cultural phenomenon and essayisation as an expansion of the essayistic principle of thought into all forms he used to write, both belletristic and discursive. At the same time, the essayisation is depicted not only as an integrative process in the works of Kiš, but also as part of general integrative processes which started in the culture of the 20th century, and which emerged as a counterbalance to the system and the narrow specialisation and scientisation of human knowledge and experience. A systematic study of Kiš’ essayistic opus provides a confirmation of the existence of deep congruence between his essay writing and belletristic works since he cherished essay as well as artistic prose – together with it (in terms of ideas and topics and in the formal sense), under its auspices, but quantitatively and qualitatively at the same level. His essay writing does not fall behind his belletristic works regarding its influence on future generations of writers and critics, which means that they should be read together and that thinking about the art today is inseparable from the art itself. An insight into diachronic development of Serbian essay writing shows that Kiš’ essay writing continues a rich tradition of writers-essayists, which future studies should thoroughly e

Po svakoj toni proizvedenog bakra u pirometalurškoj proizvodnji nastaje 2,2-3,0 t šljake, što na svetskom nivou iznosi oko 40 miliona tona šljake godišnje. Ova šljaka u sebi sadrži 0,5-2,1% Cu i tradicionalno se smatrala čvrstim otpadom i odlagala na deponije. Sa padom prosečnog sadržaja bakra u rudi ispod 1% šljaka je postala značajna sekundarna sirovina..., Per each tone of produced copper in the process of pyrometallurgy, there has been obtained 2,2 – 3,0 t of slag, which is on the world level around 40 million of tones of slag per year. This slag contains 0,5 – 2,1% Cu and it has been considered traditionally the solid waste for years, being dumped on waste dumps. With the decrease of the average copper content in copper ore to under 1%, slag has become a very important secondary raw material...

Rudarsko-metalurški postupci proizvodnje obojenih metala, pre svega bakra, prepoznati su kao glavni izvor teških metala u ţivotnoj sredini i to najĉešće preko atmosfere, putem suve ili mokre depozicije. Zbog toga je jako vaţno da se proceni nivo kontaminacije teškim metalima u zoni dejstva zagaĊivaĉa. Sadrţaj teških metala (bakra, cinka, olova, arsena, kadmijuma, nikla) odreĊivan je u uzorcima površinskog sloja zemljišta i voćnih vrsta (divlja kupina - Rubus fruticosus L., vinova loza - Vitis vinifera L varijetet Tamjanika, vinogradarska breskva - Prunus persica L. Batech i jabuka - Malus spp.) sa osam lokacija razliĉito udaljenih od Rudarsko-topioniĉarskog basena Bor (Istoĉna Srbija). Sadrţaj teških metala u zemljištu i biljnim organima (koren, stablo/grana, list, plod), odreĊeni metodom ICP-OES (optiĉka emisiona spektrometrija sa induktivno spregnutom plazmom), omogućio je da se proceni kvalitet ţivotne sredine u urbano industrijskim i ruralnim oblastima Bora koje su izloţene zagaĊenju iz rudarskometalurškog kompleksa. Za statistiĉku evaluaciju dobijenih rezultata korišćene su metode: Pirsonova korelaciona analiza, hijerarhijska klaster analiza, analiza glavnih komponenata i dvofaktorska ANOVA. Pored toga odreĊeni biološki faktori i faktori obogaćenja elementima korišćeni su u proceni nivoa kontaminacije. Generalno, najveće zagaĊenje teškim metalima (kako zemljišta, tako i biljaka) detektovano je na lokacijama najbliţim topionici, kao i na pravcu dominantnih vetrova. Statistiĉke analize su pokazale da sadrţaj teških metala u zemljištu i ispitivanim voćnim vrstama uglavnom potiĉe iz zagaĊenog vazduha, izuzev Ni koji je uglavnom geohemijskog porekla. Voćne vrste pokazale su dobru toleranciju na visoke koncentracije teških metala (ĉak i na fitotoksiĉnom nivou) u svojim tkivima, naroĉito u korenu. Pri tome, znaĉajniji, vidljivi simptomi toksiĉnosti nisu uoĉeni. Zemljište je najviše zagaĊeno bakrom, ali su i drugi metali prisutni u visokim koncentracijama...

Doctoral thesis Narrative Strategies in the Serbian Modernist Novels focuses on the extrication and description of narrative procedures’ functionality in the Serbian modernist novels published from the beginning of the 20th century till the beginning of the Great War. The corpus of the study consists of the novels by Borisav Stаnković (Nečista krv, Gazda Mladen), Svetozar Ćorović (Majčina sultanija,Jarani), Ivo Ćipiko (Za kruhom, Pauci), Jelena Dimitrijević (Nove), Lazar Komarčić (Jedna ugašena zvezda, Jedan razoren um), Pera Stefanović Taletov (Novac), Veljko Milićević (Bespuće, Opsene), Milutin Uskoković (Došljaci, Čedomir Ilić). The basic methodological guidelines are represented through the classical, but also postclassical, primarily cognitive narratological studies in the thesis. Bearing in mind the vast field of narratological research that includes all instances of narrative communicative chain and within it various ,,narrative procedures”, the focus of the research is based on the problem of focalization and the frame issue. The theoretical part of the thesis is based on the theories of focalization and frames from its earliest definitions to their redefinition and understandimg in the latest narratological studies. In separate analyses, the thesis deals with the issue of focalization, particularly the internal focalization which is dominant in the Serbian modernist novel, thus also including intermental/collective and hypothetical focalization. The second analytical-interpretative part of the thesis deals with the issue of border framing and includes titles, intertitles, epigraphs, incipits and explicits. The analyses have pointed to the conclusion of the destabilization of mimetics expressed in the procedure of interiorization. Internal focalization as a key narrative strategy of modernist novel (also present in border framings) conditioned other movements such as: expressed procedure of individualization in the process of literary character's building, s

Based on a wider concept of the informational development of education, the doctoral dissertation The Internet and Multimedia as Educational Aids in Literature Teaching explores the specific use of new media in literature teaching at the elementary and secondary school levels. The initial supposition of the theoretical empirical research was the view that the informational development inevitably, and in various manners, affected literature teaching, however, that influence was not sufficiently explored from the methodological standpoint. Thus, a thorough research task was formed: description and reflection on the present day practice, analysis of the position and prediction of the possibilities of literature teaching in the informational development. The subject matter was explored at three levels – through the examination of the teaching practice, professional literature and Internet resources. A relevant sample of Serbian language and literature teachers was examined, empirically, by means of survey, to determine their views and experience in regard to using contemporary technology as educational. The results of the research were statistically processed and analysed by using the descriptive method, and they constitute one of four units within the inner structure of the dissertation. In the theoretical segment, we explicated, on the one hand, the theories of learning and the pedagogical models of teaching, as the basis and scientific justification for the use of Internet and multimedia in literature teaching, and on the other hand, the hypertext theory, as the focal point among the literary criticism theory, the technology of new media, literature and teaching methodology. That is the interdisciplinary framework for the second unit of the dissertation, which represents the results of an extensive research of web resources, conducted with a purpose of presenting the most complete overview of their possible applications in literature teaching, based on a choice of we

Izdvajanje čestica tonera iz vodene suspenzije papira ispitivano je na sintetičkim uzorcima celuloznih vlakana i čestica tonera da bi se eliminisao uticaj sraslaca vlakno - čestica kao i uticaj krupnoće čestica tonera na efikasnost procesa flotiranja tonera uz konstantan maseni odnos vlakana celuloze i čestica tonera. Takođe da bi se obezbedile iste fizičko hemijske karakteristike tonera kao nakon dezintegracije štampanog papira, sintetički uzorak je pripremljen postupkom topljenja u cilju simuliranja procesa oksidopolimerizacije do koje dolazi prilikom štampanja na laserskom štampaču, usitnjavanjem i prosejavanjem na seriji sita radi dobijanja srednjeg prečnika čestica tonera približnom prečniku pri dezintegraciji štampanog papira. Rezultati analiza SEM i DSC pokazale su da je moguće pripremiti sintetički uzorak koji ima skoro identične fizičko hemijske karakteristike kao i realni uzorak štampanog tonera nakon procesa dezintegracije. Nakon obrade literature usvojili su se konstantni optimalni parametri u procesu flotacije, temperatura tečne faze, sadržaj čvrste faze, brzina agitacije, protok vazduha, vreme kondicioniranja, dok su promenljivi parametri u procesu flotacije bili vrsta i koncentracija surfakanata (oleinska kiselina koncentracije od 3,38 10-6 M/dm3 do 2,03 10-4M/dm3 sa ili bez dodatka kalcijum hlorida 3 10-3M/dm3, MIBC koncentracije 1,40 10-5 M/dm3 do 5,60 10-5M/dm3), kao i pH vrednost sredine (od pH 3 do 12). Radi upoređivanja ostvarenih rezultata sa rezultatima iz literature, testiranja i analiziranja kinetičkih modela izdvajanja čestica tonera iz suspenzije papira, definisani su optimalni uslovi pri kojima se ostvaruje dobra selektivnost u procesu flotacije (oleinska kiselina 3,38 10-6 M/dm3 pri pH 9; oleinska kiselina 2,37 10-5 M/dm3 u prisustvu kalcijum hlorida 3 10-3 M/dm3 pri pH 3; MIBC 1,40 10-5 M/dm3 pri pH 7 i 9; MIBC 2,40 10-5 M/dm3 pri pH 9 i 12). Rezultati eksperimentalnih istraživanja izdvajanja čestica tonera iz vodene suspenzije papira p, The flotation of toner has been tested on the synthetic samples of the cellulose fibers and toner particles in order to eliminate the influence of middlings: fiber-particle as well as the influence of toner particle sizes on flotation process efficiency of toner accompanied by the constant mass relation between the cellulose fibers and toner particles. In order to provide the same toner physical-chemical features, the same way as after the printed paper disintegration, the synthetic sample has been prepared by the melting procedure in order to achieve the simulation of the process of oxidopolymerization, which occurs during the process of printing on the laser printer, by comminuting and screening on the screen series for the sake of obtaining the middle diameter of the toner particles which would be close to that diameter while the printing paper is being disintegrated. The results of SEM and DSC analyses have shown that it is possible to prepare the synthetic sample which has got almost the same identical physical and chemical features as the real sample of the printed toner after the process of disintegration. After dealing with literature, there were adopted the constant optimal parameters in the flotation process, the temperature of the liquid state, the content of the solid, the agitation speed, the air flow, the conditioning time, while the variable parameters in the flotation process were a type and a concentration of a surfactant (oleic acid concentration from 3,38 10-6 M/dm3 up to 2,03 10-4 M/dm3 with or without any addition of the calcium chloride 3 10-3 M/dm3, MIBC concentration from 1,40 10-5 M/dm3 to 5,6 10-5 M/dm3), as well as the pH value of the medium (from pH 3 to 12). For the sake of comparing the achieved results to the ones from the Literature, the testing and analyzing of kinetic models of the toner flotation, there were defined the optimal conditions under which it is possible to achieve a good selectivity in the process of flotation (oleic ac

Elektrohemijsko ponašanje bakra u ovom radu ispitivano je u kiseloj sulfatnoj sredini u prisustvu organskih jedinjenja: purina, cisteina, 4(5)-metilimidazola i 2-merkapto- 1-metilimidazola. Na onovu rezultata dobijenih ispitivanjem ovih jedinjenja može se konstatovati da njihovo prisustvo uzrokuje smanjenje gustine struje, odnosno da se pomenuta jedinjenja ponašaju kao inhibitori korozije bakra u kiseloj sulfatnoj sredini. Najveća vrednost efikasnosti inhibicije prilikom istraživanja dobijena je kada je elektroda bila izložena najvećoj koncentraciji inhibitora. Vrednost potencijala otvorenog kola i korozioni potencijal, u zavisnosti od inhibitora, pomeraju se i ka negativnijim i ka pozitivnijim vrednostima, ali kako ovo pomeranje nije značajno, može se reći da su inhibitori mešovitog tipa. Inhibitorski efekt organskih jedinjenja javlja se kao posledica intreakcije njihovih molekula i površine bakra tj., građenja kompleksa sa bakrom ili adsorpcija molekula inhibitora na površini bakra. Svi korišćeni inhibitori pokoravaju se Lengmirovoj adsorpcionoj izotermi. Dobijene vrednosti Gibsove slobodne energije adsorpcije čija je maksimalna vrednost dobijena za cistein -47,055 kJ mol-1, a minimlna vrednost za 4(5)- metilimidazol -29,220 kJ mol-1, ukazuju na spontanu adsorpciju koja se može okrakterisati uglavnom kao fizička adsorpcija sa učešćem hmijske, osim u slučaju cisteina gde se može reći da je adsorpcija molekula po karkteru hemijska adsorpcija..., Electrochemical behaviour of copper was investigated in acidic sulpahte media in presence of organic compounds: purine, cisteyne, 4(5)-methylimidazole and 2-mercapto-1- methylimidazole was studied. From the obtained results gathered by examination of these compounds it could be concluded that their presence causes decrease of current dencity. Mentioned compounds act as copper corrosion inhibitors in acidic sulphate media. The biggest value of inhibition eficiency obtained during researching was when electrode were exposed to highest concentration of inhibitor. Value of open cisrcuite potential and corrosion potential depends of inhibitor and shifted toward more negative or toward more pozitive values, but this shift is not so significant it can be said that those inhibitors act as a mixed type. The inhibitory effect of organic compounds occurs as consequence of interaction of their moleculs and copper surface, that is formation of complex with copper or adsorption of inhbitor molecules on copper suraface. All used inhibitors obey Langmuir adsorption isotherm. Obtained values Gibbs free energy of adsorption with maximum value for cisteyne -47,055 kJ mol-1 and minimum value for 4(5)-methylimidazole -29,220 kJ mol-1, point to spontaneous adsorption. It can be characterized as a strong physical adsorption with slight chemisorption. But the exception is observed when cisteyne was used as inhibtor when adsorption of inhibitor moleculs can be characterized as a chemisorption. ...

U ovom radu ispitivano je elektrohemijsko ponašanje mesinga u neutralnom i alkalnom rastvoru natrijum sulfata kao i uticaj cisteina, purina, 2-aminotiazola i 2-amino-5-etil-1,3,4- tiadiazola na elektrohemijsku oksidaciju mesinga. U tu svrhu korišene su elektrohemijske metode: merenje potencijala otvorenog kola, potenciodinamika i potenciostatska polarizacija. Površina mesinga je analizirana metalografskim mikroskopom kako bi se dobio što bolji uvid u kompoziciju nagraenih produkata oksidacije i formiranih zaštitnih filmova u sluajevima kada su kao inhibitori korozije korišeni cistein i purin. Elektrohemijska ispitivanja su pokazala da u prisustvu ispitivanih jedinjenja dolazi do smanjenja gustine struje što je pokazatelj inhibitorskog dejstva. Sva ispitivana jedinjenja su sa porastom koncentracije imala jai uticaj na smanjenje gustine struje, a samim tim i na porast efikasnosti inhibicije koja je bila izraženija u slabo alkalnim rastvorima. Na osnovu promena vrednosti potencijala otvorenog kola kao i korozionog potencijala može se rei da su svi ispitivani inhibitori mešovitog tipa. Na površini mesinga može doi do adsorpcije molekula inhibitora ili do graenja kompleksa u reakciji izmeu inhibitora i jona bakra što predstavlja osnovu inhibitorskog dejstva ispitivanih jedinjenja. Za opisivanje adsorpcije ispitivanih inhibitora korišena je Lengmirova adsorpciona izoterma na osnovu koje su izraunavane vrednosti Gibsove slobodne energije adsorpcije. Vrednosti Gibsove slobodne energije adsorpcije pokazuju da dolazi do spontane hemisorpcije inhibitora na površini mesinga u neutralnoj i slabo alkalnoj sredini., The electrochemical behavior of Cu37Zn brass in neutral and alkaline sulphate media and influence of cysteine, purine, 2-aminothiazole and 2-amino-5-ethyl-1,3,4-thiadiazole on the electrochemical oxidation of brass was investigated in this study. The open-circuit potential measurements, potentiodynamic measurements and chronoamperometry were the methods used for electrochemical investigation of brass in a Na2SO4 solution with the addition of potential inhibitors. The surface of brass electrode was observed through a metallographic microscope with the aim of examining the structure of the products of electrooxidation and protective films formed in the solution with addition of the cysteine and purine. The results of electrochemical tests have shown that all investigated compounds reduce current density which indicates their inhibitory characteristics. The current density decrease as inhibitors concentration increase and the inhibition efficiency increase which was more pronounced in the weakly alkaline solution. All examined compounds are mixed-type inhibitors which was conclused on the bases of the change of the open circuit potentials and corrosion potentials values. On the brass surface there may be an adsorption of the inhibitors' molecules or formation of protective complex in the reaction between inhibitor and Cu+ ions which represents base of the inhibition action of the examined compounds. The adsorption of all the inhibitors studied in this research proceeds according to the Langmuir adsorption isotherm. Gibbs free energy of adsorption was calculate by Langmuir adsorption isotherm and suggest on inhibitors chemisorpion on brass surface in neutral and weakly alkaline media.