bluuebunny/crossref_metadata_2025 huggingface dataset:
The backyard of transition
Authors: Djuric Jelena
Published: November 2007

The reflection on the current period of transition in Serbian society indicates deep contradictions between the urge for European integration and the delay of institutional transformation that fuse with the indolence of a large part of the people. The crisis of values is conspicuous almost everywhere. Continuous changes have had hard consequences on Serbian society. During these changes moral patterns, values, spirituality were destroyed, rebuilt, and lost again. Hence, Serbian society now lies on the ruins of past 'traditions', general values, collective identities, and a common purpose. In everyday life, it is noticeable very often as, for example, in the Belgrade 'park-scape' whose photos obviously illustrate these problems.
Silent and a audible stereotypes: The constitution of "ethnic character" in Serbian epic poetry
Authors: Djeric Gordana
Published: November 2007

The article deals with the explanatory relevance of the concept of stereotype in one of its original meanings - as a "mental image". This meaning of the term is the starting point for further differentiations, such as: between linguistic and behavioral stereotypes (in the sense of nonverbal, expected responses); universal and particular stereotypes; self representative and introspective stereotypes; permanent and contemporary stereotypes; and finally, what is most important for our purposes, the difference between silent and audible stereotypes. These distinctions, along with the functions of stereotype, are discussed in the first part of the paper. In the second part, the relations of silent and audible stereotypes are tested against the introduction of "innovative vocabularies" in popular lore. In other words, the explanatory power of this differentiation is checked through an analysis of unconventional motives in Serbian epic poems. The goal of the argument is to clarify the procedure of self creation of masculinity as a relevant feature of the "national character" through "tactic games" of silent and audible stereotypes. The examination of these "poetic strategies" serves a twofold purpose: to illustrate the process of constructing particular features of the "ethno type", on one hand, and to check hypotheses and models which are taken as frameworks in analyzing stereotypes, on the other.
Politics and everyday life in Serbia in 2005: Views of politics, change of social system, the public sphere
Authors: Spasic Ivana
Published: November 2007

The paper offers an analysis of the interview data collected in the project "Politics and everyday life: Three years later" in terms of three main topics: attitudes to the political sphere, change of social system, and the democratic public sphere. The analysis focuses on ambivalences expressed in the responses which, under the surface of overall disappointment and discontent, may contain preserved results of the previously achieved "social learning" and their positive potentials. The main objective was to examine to what extent the processes of political maturation of citizens, identified in the 2002 study, have continued. After pointing to a number of shifts in people?s views of politics which generally do not contradict the tendencies outlined in 2002 (such as deemotionalization and depersonalization of politics, insistence on efficiency of public officials and on a clearer articulation of positions on the political scene), it is argued that the process of rationalization of political culture has not stopped, but it manifests itself differently in changed circumstances. The republican euphoria of 2002 has been replaced by resignation, with a stronger individualist orientation and a commitment to professional achievement.
In the grip of betrayed expectations
Authors: Jaric Isidora
Published: November 2007

The paper discusses the position of young people in Serbia today, as can be inferred from the evidence collected in the study "Politics and everyday life - three years later". Starting from the typology she developed in her 2002 analysis of young people?s interviews (when four basic ways of self-positioning within the social context were identified: "B92 generation", "provincials", "fundamentalists", and "guests"), the author traces the changes that have intervened over the past three years in the attitudes of these same respondents concerning politics, personal engagement, views of the future and of their own selves. The fact that the expectations, awakened by the events of 5 October 2000, have been betrayed, has brought strong disappointment, and it is the context in which young people in Serbia once again are losing faith that they will ever find their place in their own society. Against the background of a basic tension in relation to politics - between excessive interest and disgust - there basic strategies of young people in 2005 are formed. "Withdrawal", as the most common strategy, indicates a return of the young to their narrow personal, private, imaginary world, after a short exit into reality and active participation in creating the conditions of their own social existence. The increasingly frequent strategy of "aggression and imposition of one?s own worldview" points to the rising radicalization of the young generation. Finally, it is only the "planning strategy", espoused by just a handful of respondents, that retains traces of faith in future improvement of social conditions.
Voices from the can: McLuhan, the digital absolute and the problem of regressive progress (towards a materialist epistemology of media discourse)
Authors: Mikulic Borislav
Published: November 2007

On the basis of selected examples of average lay as well as professional and theoretical discourses on the media phenomenon and the very notion of media, the author seeks to identify moments conducive to constructing a model for media analysis of a social-theoretical bent, and both structural-semiotic and substantive-critical in character. The analysis refers to the media in both the strict (technological) and the expanded (semiological) meaning of the term - as technical devices and semiotic objects, such as discourses of ideology, science and literature. In the first section (I. 1-3), almost entirely devoted to Marshall McLuhan?s brief and legendary text ?The Medium Is the Message?, his basic thesis is put under a discursive-logical analysis of the text and reverted into the seemingly diametrically opposed form, ?The Message Is the Medium?, whose further interpretive possibilities are then explored. In the second section (II. 1-3) McLuhan?s ?integral? approach to media analysis, as a particular theory (communication theory), is examined by placing it in the discursive context along with the ?End of Ideology? thesis from the 1960s and instances of humanistic-scientific discourse on non-technological media forms (hermeneutic theories of perception, psychoanalysis of narrative strategies in fictional discourses). The aim of the discussion is to relocate the phenomenon of conceptual regression (whether substantive, cultural, or ideological) in discourses presupposing absolute innovativeness and progressiveness of their media form. The result of the inquiry shows that regressive ness lies in the ?progressive? media form itself, that is, in the very conceptions (theories, ideologies) of the form.
Religion as a factor of political culture and economic development
Authors: Ristic Irena
Published: November 2007

In his essay ?The Protestant Ethic? Max Weber explains the specific economic development and the foundation of capitalism in Western Europe due to the appearance of protestant sects and the ?spirit of capitalism?. By doing so, Weber assigns religion a significant place among the factors of social and economic development. Taking Weber?s theory and argumentation as a starting point, this article drafts a thesis on ?orthodox ethic? and determines its role in the development of the ?spirit of capitalism? in orthodox countries. For that purpose this article compares political-historical circumstances on the territory of the Western and Eastern Church on one, and pictures the theological-philosophical basis of both Protestantism and Orthodoxy on the other side.
Alfred Rosenberg’s clash with Christianity
Authors: Molnar Aleksandar
Published: November 2007

In the article the author is following the development of Alfred Rosenberg?s social and political theory. Special attention is given to the anti-Christian attitude of the so-called "chief ideologist of Third Reich". Although one among the creators of the apocalyptic anti-Semitist ideology (about "final battle" with the Jews - perceived as the powers of Evil incarnated) he opposed Nazi "Eastern politics" during the World War II. Instead of atrocities against the eastern peoples (Ukrainians, Russians etc) he was prepared to give them certain autonomy and to treat them as some kind of racially inferior allies. For him, only Jews deserved extermination ("once for all") and it was this ultimate goal he expected to shape not only German foreign policy but also war itself.
The virtual return of "fourth" and "fifth" generation migrants
Authors: Gredelj Stjepan
Published: November 2007

The main aims of the project are twofold: the first one is to get insight into scope, structure, everyday life, opinions and plans of our people who live abroad as the fourth and fifth generations of emigrants, specially those who left the country during 90s. The second is checking and recording their preparedness for "return" to mother-country through complex set of activities and arrangements: return (repatriation), capital investments, know-how and skills investments, preservation and strengthening cultural identity of our people abroad and development their links with the ethnic/cultural background and inheritance.
Macintyre on identity of ethics and politics
Authors: Sládecek Michal
Published: November 2007

In first chapters of this article MacIntyre?s view of ethics is analyzed, together with his critics of liberalism as philosophical and political theory, as well as dominant ideological conception. In last chapters MacIntyre?s view of the relation between politics and ethics is considered, along with the critical review of his theoretical positions. Macintyre?s conception is regarded on the one hand as very broad, because the entire morality is identified with ethical life, while on the other hand it is regarded as too narrow since it excludes certain essential aspects of deliberation which refers to the sphere of individual rights, the relations between communities, as well as distribution of goods within the state.
Absolutism and individuality in Hobbes
Authors: Milidrag Predrag
Published: November 2007

The paper discusses the relation of the absolutism of sovereign?s power and the freedom of the citizens, against the background of the influence of biblical paradigms on Hobbes.
University and science in Serbia in context of Europe’s integration
Authors: Lolic Marinko
Published: November 2007

Author considering, appearing and existing modern idea about university like one of the most important institution of knowledge which is arise in modern epoch. In this work particular attention will be initiated on considered different ideas and conception university which were before so-called Himbolt?s idea of university which has global disposition and which is in the last two centuries regardless on period of crisis, had dominant position in contemporary high school education.. The second part of work is consecrated on analysis constitute the first Serbian university. In this part of work will be analyze different treatise and projects of university which are during 19. and on the beginning of 20. century arise in circle of Serbian intellectual elite in which are essentially influence at form of institutionally profile the first Serbian university. The third part of work surround there different phase of develop on university and university education in Serbia in XX and on the beginning of XXI century. The first phase present the time between two war; the second phase is consecrate the time of and the third phase consecrate the last decade of XX and the first decade of XXI century in which are tempestuous changes in society announce new searching and fundamental over questioning the state in our high school institution with primary target that theirs work coordinate with standard of European universities and that way accomplish theirs integration in net of European universities.
Philosophical education as a dysfunction of society
Authors: Krstic Predrag
Published: November 2007

This paper tries to extricate philosophical education from the restrictions of social and school systems and to commend some independent and subversive views. This is to be accomplished through a conceptual dissection of the term ?education?. On the one hand, there is education seen as transmitter of the tradition, where to be educated is seen as being able to fit into an established community. There is also another education to which the authority of tradition is a permanent target of resistance, always trying to undermine any educational uniformity. This second history of education, genuinely philosophical, is radically opposed to the history of institutionalized mass-education. However, intention of this paper is not to proclaim this as an "alternative" model, or to build it up as a new mythology. On the contrary, it is being written as a history of continuous subversion. Viewed from this vantage point, autonomous philosophical education is not a subsystem of a social system. This education has itself as a measurement, and always resists the wider community (the environment) that has accidentally befallen it. Its honor is exactly in this attitude of resistance, in being watchful against any conscription and integration. Understood in this manner, philosophical education is not a useful "implemented" function of society, but is rather its dysfunction.
Gajo Petrovic’s Praxis
Authors: Jaksic Bozidar
Published: November 2007

The author?s approach is based on three premises: 1. that Gajo Petrovic?s Praxis was an outstanding phenomenon in Croatian, Yugoslav and European culture, a challenge of freedom in a repressive society; 2. that there has never been such a thing as "Praxis group", "philosophers of practice" or "Praxis philosophers" with a unified philosophical and socio-theoretical orientation; and 3. that political and ideological attacks on Praxis were part of the repressive system that targeted every instance of cultural and scientific dissent. The political leadership of Tito?s regime, its ideological and propaganda apparatus systematically disseminated allegations, denunciations and accusations against Praxis and Gajo Petrovic. The same style has survived through radical historical changes from the appearance of Praxis until today. The attackers have often been the same persons, with the difference that in earlier times they denounced Praxis and Gajo Petrovic as enemies of "socialism" and the "socialist self-management system", and in the changed political fashion as "servants" of Tito?s authoritarian rule. The fate of Praxis in the former regime has been triumphantly interpreted as a "family quarrel". This paper attempts a sociological analysis of the political destiny of Praxis. The analysis is essentially determined not by old and new political and ideological questionings of Praxis, but by Gajo Petrovic?s fundamental belief that there is no freedom without the human or humanity without freedom. .
Philosophical anthropology, anthropologic of philosophy and after
Authors: Krstic Predrag
Published: November 2007

This expose deals, first of all, with suppositions, structure and range of human thinking that has been undertaken, very ambitiously, by "philosophical anthropology" at the beginning of the twentieth century. And then, through philosophical critique and self-critique of its status and limitations of this "discipline", it is indicating the orientation of recent controversy regarding the possibilities and characters of radical dismissal and/or reaffirmation of philosopheme "man".
Michael Walzer: Community in the spheres of justice
Authors: Sládecek Michal
Published: November 2007

This text discusses Walzer?e position in relation to liberalistic concepts of justice, inequality, citizenship and ethnocultural identity. Unlike liberals, Walzer emphasizes the importance of nonvolntary associations and duties caused by such association, just as social inequality, which is the result of belonging to ethnocultural group. The text also considers Walzer?s answers to critiques that his position implies moral relativism. As far as politics is concerned, Walzer?s position claims that ethical systems on which communities in liberal society rely, are liberalized enough, with accepted principles of fairness, tolerance and intergroup justice. These systems correspond to political "liberal consensus", which cannot be derived from prepolitical ethos.
The Rhynchonellide Brachiopod Cyclothyris ? globata (Arnaud, 1877) from the Santonian-Campanian of Pannonides, Carpatho-Balkanides and Dinarides, South-Eastern Europe
Authors: Radulovic Vladan , Motchurova-Dekova Neda
Published: November 2007

The asymmetric rhynchonellide brachiopods Rhynchonella difformis Valenciennes in Lamarck and R. contorta d'Orbigny were often mentioned in the stratigraphic literature on Santonian-Campanian outcrops of the Pannonides, Carpatho-Balkanides and Dinarides (southeastern Europe). A recent taxonomic study including modern methods of serial sectioning and shell microstructure of brachiopods has resulted in revision of both species, identified now as Cyclothyris ? globata (Arnaud).
Petrology and P-T condition of white mica-chlorite schists from Vlasina series - Surdulica, SE Serbia
Authors: Vaskovic Nada
Published: November 2007

This paper reports structural, textural, petrological and metamorphic data from Vlasina Series of greenschists rocks (as part of the Upper Complex of the Serbo-Macedonian Massif) within which group of white mica-chlorite schist are extensively developed. This group of rocks made the ground of series in which various types of green rocks appear as a lenses and small irregular mass, rarely as dykes. Other features, that characterize these rocks, are the common occurrence of albite and garnet (subordinate) porphyroblasts, as well as development of quartz segregation. Group of white mica-chlorite schist makes about 75 vol. % of Series. Among them, according to mode and mineral composition, the following schist varieties are distinguished: albite-white mica-chlorite (?garnet), white mica-chlorite (?garnet), albite-white mica, sericite-chlorite (?albite), graphite-sericite as well as phyllites and calcshists. Their metamorphic evolution is characterized by the development of a metamorphic episode during Carboniferous - c. 350-330 Ma (Milovanovic et al., 1988) of low to medium P and T. The mineral assemblages of first phase (low PT) is preserved as a very thin Si=S1 foliation included in albite porphyroblast or as small polygonal arcs of S1 in S2 foliation. Textural, mineralogical and petrological data indicate that original volcanoclastic-sedimentary series was transformed during three phase of deformation and metamorphism in the temperature range from 320-415?C, locally 450-500?C and pressures 3 to 5 kbar.
Geochemical-mineralogical characteristics of spring sediment of the iron-sulfate mineral water Ljepotica near Srebrenica, RS
Authors: Dangic Adam , Dangic Jelena
Published: November 2007

The Srebrenica area in Eastern Bosnia (Republika Srpska) is characterized by numerous Pb-Zn sulfide ore bodies and several iron-sulfate mineral water springs. The spring Ljepotica appears in the central part of the area and has similar water composition and spring sediment "limonite" mass like nearby the famous medical iron-arsenic water spring Crni Guber. The sequential chemical analysis of iron and XRD-studies of the relative shortly aged spring sediment showed that it is composed by ferrihydrite, jarosite and some goethite. The ratio Fedit/Fetot of 0.76 indicates that jarosite appears as a main constituent, in contrast to the Crni Guber spring sediment in which occurs irregularly and in traces. Trace elements pattern is characterized by appearance of As, Pb, Sb, and Sr as the most abundant (>5000 and up to 1450, 780, and 210 ppm, respectively), small contents of Cr, Cu, Ti, V, and Zn (up to 60 ppm), and traces of Mn, Ni and Sc (below 10 ppm). Chemical analysis of the sediment indicates that jarosite is of the jarosite-hydronium jarosite type.
Note on Paleocene algae in the Dubrovnik coast - Adriatic carbonate platform
Authors: Radoicic Rajka
Published: November 2007

The presence of Paleocene in the Dubrovnik Coast (Adriatic Carbonate Platform) is documented by algal flora in the locality Plocice, Konavli. The algal assemblage includes more than 20 species. Ten taxa present in the Paleocene of the Karst (NE Italy-Slovenia) occur in Plocice: Acroporella chiapasensis DELOFFRE, FOURCADE & MICHAUD, Decastroporella tergestina BARATTOLO, Drobnella slovenica BARATTOLO, Dissocladella gracilis RADOICIC Hamulusella? liburnica (RADOICIC), Cymopolia elongata (DEFRANCE) MUNIER-CHALMAS, Cymopolia paronai RAINERI, Cymopolia satyavanti (PIA) Cymopolia cf. barberae ELLIOTT and Microsporangiella buseri BARATTOLO. The stratigraphy of the Konavli carbonate belt has been revised in this study.
The palaeogeographic outlines of the Caucasus in the Jurassic: The Caucasian Sea and the Neotethys Ocean
Authors: Ruban Dmitry
Published: November 2007

The Caucasian Sea, fringing the northern margin of the Jurassic Neotethys Ocean, largely covered the Caucasus. Continental, shallow-marine and deep-marine palaeoenvironments delineate palaeogeographic outlines for three significant time slices: the Late Toarcian, the Early Bajocian and the Middle Oxfordian. These new palaeogeographic outlines of the Caucasus and adjacent territories match the Neotethys Ocean reconstructions. In the Late Toarcian the Caucasian Sea embraced the Greater Caucasus Basin and the Black Sea Caspian Sea Basin, which were divided by the Northern Transcaucasian Arc; it opened to the Neotethys Ocean which covered the Exterior Caucasian Basin. In the Early Bajocian, the Caucasian Sea only embraced the Greater Caucasus Basin; it opened the epicontinental seas of the Russian Platform, connecting them with the Neotethys Ocean by straits between islands of the Transcaucasian Arc. In the Middle Oxfordian, the Caucasian Sea which further embraced the Greater Caucasus Basin had its outer shelf fringed by carbonate build-ups. The connection between the Russian Platform shallow sea and the Neotethys Ocean was maintained. In the course of the Jurassic, a seaway developed along the northern margin of the Neotethys, of which the Caucasian Sea became a significant part.
A storm event during the Maastrichtian in the Cauvery basin, South India
Authors: Ramkumar Mu
Published: November 2007

Sedimentary structures in the Kallankurichchi Formation of the Ariyalur Group, South India have been examined with a view of assessing the depositional setting of these rocks. Of the different sedimentary structures such as cross bedding, cut and fill, etc., hummocky cross stratification is significant as it resulted from a major storm event. This paper deals with the recognized sedimentary structures, their genesis and environmental implications.
Strguni = striguni
Authors: Stipcevic Niksa
Published: November 2007

The meaning and the etymology of Old Serbian strgun are considered, which figures in a 14th century charter among other terms designating various kinds of craftsmen. The interpretation as 'shearer' is proposed, relating it to the verbal root of *strigti 'to shear'.
Lexical dynamics of the 1990: Numbers and letters
Authors: Sipka Danko
Published: November 2007

The author presents the data concerning the Serbo-Croatian lexical dynamics of the 1990s. He notes that the changes in this period were fundamental far-reaching. They left a visible trace not only in the lexicon, but also in the grammatical system of the language. It is interesting to note that despite the popular perception, the new ethnically marked lexical items were characterized by only moderate frequency.
Computational thermodynamics and informational technologies in the field of computer design of materials
Authors: Udovsky A.L.
Published: November 2007

Computational thermodynamics and informational technologies in the field of computer desing of materials as well as appliance of CALPHAD method on resolution of thermodynamic problems are presented in this paper.
Passivation and red-ox processes of refractory metals in carbamide-chloride melt
Authors: Tumanova N. , Volkov S. , Kochetova S. , Triphonova T. , Buryak N.
Published: November 2007

The electrochemical behavior of refractory metals (Pt, Pd, W, Ti, Nb, Ta) in the low temperature carbamide-NH4Cl melt (texp=120 oC) and the structure of complex ions formed after anodic dissolution have been studied by cyclic voltammetry and spectroscopic methods. The features of the mechanism of metal electrodissolution and possibilities of the cathodic reduction of complexes formed in the melt are presented. A possible correlation between passivation processes on the metal surface, the mechanism of electrodissolution, composition of complexes and the electrochemical activity of metals and their ions are discussed. The data obtained reflect the possibilities to use the carbamide-NH4Cl melt for practical purposes in electroplating and electropolishing.
Corrosion of steel in ionic liquids
Authors: Arenas M.F. , Reddy R.G.
Published: November 2007

The corrosion behavior of 1018 carbon steel alloy has been investigated by electrochemical techniques. The ionic liquids studied were 1-butyl-3-methylimidazolium chloride ([C4mim]Cl), 1 hexyl-3-methylimidazolium hexafluorophosphate ([C6mim]PF6) 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim]PF6), and 1-butyl-3-methylimidazolium bis-(trifluoromethanesulfonyl) imide ([C4mim][Tf2N]). Potentiodynamic polarization and Tafel plots were used to determine the corrosion behavior of the carbon steel. Results showed that corrosion resistance of 1018 carbon steel in ionic liquids is outstanding as indicated by the low corrosion rates obtained which ranged from 3-13 ?m/yr. Anodic polarization curves showed active/passive corrosion behavior of the alloy in most of the ionic liquids tested. However, ionic liquids containing chloride ions were unable to form a passive region.
Electrocrystallization of fibrous silver deposits from nitrate melts: Experiments and modeling
Authors: Murashova I.B. , Khramov A.P. , Zotin I.V. , Zaikov YU.P. , Zyrjanov V.G.
Published: November 2007

Fibrous silver deposits have been obtained in molten nitrates on a moving cathode. Cylindrical silver cathode was lifted from the melt AgNO3-NaNO3-KNO3. It is found that the dimensions of the silver threads as well as their shape and thickness depend on the electrolysis parameters: the values of current and velocity of the cathode lifting. Systematic study of the silver dendrite structure has been performed on a scanning electron microscope. Geometric characteristics have been evaluated statistically and regression equations linking these constitutive properties of the deposits with the values of current and of lifting velocity have been obtained. A criterion for the description of dendrite shape under different conditions is proposed.
The role of order and disorder in thermal and material sciences part 2: Scientific world and new insights
Authors: Sesták Jaroslav
Published: November 2007

The notion of heat is thoroughly analyzed and its historical links are search particularly with relation to both the Greek philosophy (Mile in print sians Pythagoreans, atomists, etc) and the in the present day thermal physics. Fluctuation, spontaneity and chaos is discussed. Thermodynamics is reviewed in the relation to both the traditional development and the modern description of disequilibria (open systems). Effect of dissipation is shown often to provide new, self-organized structures. Exploitation of fire and its conscious use as a manufacturing power are analyzed in terms of generalized engines to act in the sense of as the information transducers. The part 2 reveals the impact of mathematics as explained on some simple cases showing development of basic ideas (vibration, topology, bifurcations etc). Earth thermal environment is discussed in relation to the existence of life (antropy principles). Alternative theory of reaction-diffusion model of the space-time is put in contrast with big bang hypothesis and related to the herewith-discussed specialty of self-catalyzed chemical reactions. The text gives a consistent view to various historical and modern concepts that emerged during the gradual understanding of order and disorder.
Chlorination of nickel ore by gaseous chlorine in the presence of active additives
Authors: Ilic Ilija , Cerovic Katarina , Stopic Srecko , Kamberovic Zeljko
Published: November 2007

Paper presents a thermodynamic analysis of chemical reactions occurring during chlorination with and without additives for both nickel oxides and nickel ferrites, which are component parts of nickel ore. The experimental research investigated the influence of temperature in the range from 600 up to 1000 ?C and time (up to 3 h) on the chlorination degree of nickel ores with and without additives. It was found that the introduction of additives such as C, S, BaS and NaCl intensified the chlorination of nickel ore. The results can be applied and may help determine the optimal conditions for the chlorination of low-grade ferrous nickel ores.
Model of fracture micro mechanism of Cu-Cr-Zr system by in-situ tensile test in SEM
Authors: Besterci M. , Ivan J. , Kulu P. , Arensburger D. , Velgosova O.
Published: November 2007

In the present work fracture mechanism of the Cu-Cr-Zr system was studied by "in-situ tensile test in SEM". It has been shown, that during tensile strain over the critical deformation the first cracks appeared due to the decohesion of matrix - large Cr particles interphase or by Cr particles failure. The further stress increase causes the cracks formation on matrix small Cr particles interfaces and in the clusters of Cu5Zr intermetalics. The trajectory affinal fracture was formed preferably by coalescence of cracks oriented about 67? to the loading direction. The model, presenting fracture mechanism in the investigated system was suggested.
Kinetic investigations of oxidative roasting and afterwards leaching of copper-lead matte
Authors: Minic Dusko , Petkovic Desimir , Strbac N. , Mihajlovic Ivan , Zivkovic Zivan
Published: November 2007

In this paper, results of copper - lead matte investigations are presented. Investigated copper-lead matte is intermediate product of lead production in TREPCA-Zvecan. In the first part of the paper characterization of starting material is presented, consisting of: chemical composition analysis (XRQ), sceaning electron microscopy (SEM) and diffractometry (XRD). Thermal properties of matte investigated were determined using differential thermal analysis (DTA) at characteristic temperatures. Using results of induced analysis, mechanism of matte oxidation process was determined. In second part of the paper kinetic parameters describing oxidative roasting and afterwards leaching in sulfuric acid of copper-lead mate are presented.
Systematic of binary phase diagrams, formed by low-melting elements (Bi, Sn, Zn, In) and the metals of IV-th and V-th periods
Authors: Vassilev G.
Published: November 2007

Systematic discussion of the binary phase diagrams formed by low-melting elements (Bi, Sn, Zn, In) and the metallic elements of IV-th and V-th periods has been done. Some options for theoretical prediction of the type of the phase diagrams relying on general criteria (enthalpy of formation, assessed by the Miedema model, and size factor) have been applied, and compared with experimental data about the respective binary systems. The systematization helps to determine the scope and the limits of such an approach. These predictions have been compared with experimental data about the respective binary systems studied by the author. Forecasts for the general features of some unknown binary systems have been deduced.
Nanocomposite permanent magnetic materials Nd-Fe-B type: The influence of nanocomposite on magnetic properties
Authors: Talijan Nadezda , Stajic-Trosic Jasna , Grujic Aleksandar , Cosovic Vladan , Menushenkov Vladimir , Aleksic Radoslav
Published: November 2007

The influence on the magnetic properties of nanocristalline ribbons and powders has character of microstructure, between others ? the grain size volume of hard and soft magnetic phases and their distribution. Magnetic properties of ribbons and powders depend mainly on their chemical composition and parameters of their heat treatment [1]. Technology of magnets from nanocristalline ribbon consists of the following process: preparing the Nd-Fe- B alloy, preparing the ribbon, powdering of the ribbon, heat treatment of the powder and finally preparing the magnets. Nanocomposite permanent magnet materials based on Nd-Fe- B alloy with Nd low content are a new type of permanent magnetic material. The microstructure of this nanocomposite permanent magnet is composed of a mixture of magnetically soft and hard phases which provide so called exchange coupling effect.
Thermodynamic study of Ti-V and Al-V systems using FactSage
Authors: Kostov A. , Zivkovic D. , Friedrich B.
Published: November 2007

Thermodynamic study of Ti-V and Al-V binary systems is presented in this paper. Investigations included thermodynamic determination of activities, coefficient of activities, partial and integral values Gibbs energies of mixing and excess energies at four different temperatures: 2000K, 2073K, 2200K and 2273K, as well as calculated phase diagrams for the investigated systems. The FactSage program was used for all thermodynamic calculations.
Study of initial stage of mechanochemical transformation in pyrite
Authors: Paneva D. , Mitova D. , Manova E. , Kolev H. , Kunev B. , Mitov I.
Published: November 2007

The initial stage of transformation of pyrite to Fe(II)-sulfate as a result of mechanical milling is studied by X-ray powder diffraction (XRD), Moessbauer spectroscopy (MS), Infrared (IR) and X-ray photoelectron spectroscopy (XPS) techniques. A degree of conversion of 0.071 is achieved in the time interval of 0 36 min. The kinetic data satisfy the equation of a shrinking core reaction 1-(1-?)1/3=kt. The reaction is of the first order. The calculated rate constant is k=6.434.10-4 min-1. .
Reactivity determination in accelerator driven reactors using reactor noise analysis
Authors: Kostic Ljiljana
Published: November 2007

Feynman-alpha and Rossi-alpha methods are used in traditional nuclear reactors to determine the subcritical reactivity of a system. The methods are based on the measurement of the mean value, variance and the covariance of detector counts for different measurement times. Such methods attracted renewed attention recently with the advent of the so-called accelerator driven reactors (ADS) proposed some time ago. The ADS systems, intended to be used either in energy generation or transuranium transmutation, will use a subcritical core with a strong spallation source. A spallation source has statistical properties that are different from those traditionally used by radioactive sources. In such reactors the monitoring of the subcritical reactivity is very important, and a statistical method, such as the Feynman-alpha method, is capable of resolving this problem.
Famos III, burn-up measurement system suitable for la Hague acceptance criteria control
Authors: Simon Gerold , Sokcic-Kostic Marina
Published: November 2007

Fuel Assembly Monitoring System (FAMOS) was developed to set up a NDA method for the characterization of light water reactor fuel assemblies. The applied active/passive monitoring system made total characterization of fuel assemblies possible, without any previous knowledge of fuel assembly data or reactor operating data. FAMOS III measurement system was especially developed for the determination of fuel assembly burn-up which is suitable for the control of the acceptance criteria in the so-called La Hague measurements.
The Monte Carlo srna code as the engine in istar proton dose planning software for the tesla accelerator installation
Authors: Ilic Radovan , Jokic-Spasic Vesna , Belicev Petar , Dragovic Milos
Published: November 2007

This paper describes the application of SRNA Monte Carlo package for proton transport simulations in complex geometry and different material composition. SRNA package was developed for 3D dose distribution calculation in proton therapy and dosimetry and it was based on the theory of multiple scattering. The compound nuclei decay was simulated by our own and the Russian MSDM models using ICRU 63 data. The developed package consists of two codes SRNA-2KG, which simulates proton transport in the combinatorial geometry and SRNA-VOX, which uses the voxelized geometry using the CT data and conversion of the Hounsfield?s data to tissue elemental composition. Transition probabilities for both codes are prepared by the SRNADAT code. The simulation of proton beam characterization by Multi-Layer Faraday Cup, spatial distribution of positron emitters obtained by SRNA-2KG code, and intercomparison of computational codes in radiation dosimetry, indicate the immediate application of the Monte Carlo techniques in clinical practice. In this paper, we briefly present the physical model implemented in SRNA pack age, the ISTAR proton dose planning software, as well as the results of the numerical experiments with proton beams to obtain 3D dose distribution in the eye and breast tumor.
Pet imaging of dose distribution in proton-beam cancer therapy
Authors: Beebe-Wang Joanne , Dilmanian Avraham , Peggs Stephen , Schlyer David , Vaska Paul
Published: November 2007

Proton therapy is a treatment modality of increasing utility in clinical radiation oncology mostly because its dose distribution conforms more tightly to the target volume than X-ray radiation therapy. One important feature of proton therapy is that it produces a small amount of positron-emitting isotopes along the beam-path through the non-elastic nuclear interaction of protons with target nuclei such as 12C, 14N, and 16O. These radio isotopes, mainly 11C, 13N, and 15O, al low imaging the therapy dose distribution using positron emission tomography. The resulting positron emission tomography images provide a powerful tool for quality assurance of the treatment, especially when treating inhomogeneous organs such as the lungs or the head-and-neck, where the calculation of the dose distribution for treatment planning is more difficult. This pa per uses Monte Carlo simulations to predict the yield of positron emitters produced by a 250 MeV proton beam, and to simulate the productions of the image in a clinical PET scanner.
Electro chemical studies on stress corrosion cracking of Incoloy-800 in caustic solution, part I: As received samples
Authors: Dinu Alice , Fulger Manuela , Ionescu Dragos , Velciu Lucian , Radulescu Maria
Published: November 2007

Many non-volatile impurities accidentally introduced into the steam generator tend to Concentrate on its surface in restricted flow areas. In this way these impurities can lead to stress corrosion cracking (SCC) on stressed tubes of the steam generator. Such impurities can be strong alkaline or acid solutions. To evaluate the effect of alkaline concentrated environments on SCC of steam generator tubes, the tests were con ducted on stressed samples of Incoloy-800 in 10% NaOH solution. To accelerate the SCC process, stressed specimens were anodically polarised in a caustic solution in an electro chemical cell. The method of stressing of Incoloy-800 tubes used in our experiments was the C-ring. Using the cathodic zone of the potentiodynamic curves it was possible to calculate the most important electrochemical parameters: the corrosion current, the corrosion rate, and the polarization resistance. We found that the value of the corrosion potential to initiate the SCC microcracks was -100 mV. The tested samples were examined using the metallographic method. The main experimental results showed that the in crease of the stress state promoted the in crease of the SCC susceptibility of Incoloy-800 samples tested under the same conditions, and that the length of the SCC-type microcracks in creased with the growth of the stress value.
The influence of the iron shield of the solenoid on spin tracking
Authors: Toprek Dragan
Published: November 2007

The influence of the iron shield of the solenoid on spin tracking is studied in this paper. In the case of the 200 MeV proton, the study has been numerically done in the ZGOUBI code. The distribution of the magnetic field was done by POISSON. We have come to the conclusion that the influence of the solenoid?s shielding on spin tracking is the same at its entrance and exit and that is directly proportional to the intensity of the magnetic induction B on the axis of the solenoid. We have also determined that the influence of the solenoid?s shielding is much stronger on transversal components of the spin than on its longitudinal component. The differences between components of the spin for the shielded and not-shielded solenoid diminish with the in crease in the distance from the solenoid.
Structure of X-ray photoelectron spectra of low-energy and core electrons of Ln(C6H4OCH3COO-)3
Authors: Teterin Yury , Vukcevic Labud , Teterin Anton
Published: November 2007

This paper deals with the results of an X-ray photo electron spectroscopy of lanthanide ortho-metoxybenzoates Ln(C6H4OCH3COO-)3, where Ln represents lanthanides La through Lu except for Pm and C6H4OCH3COO- - residuum of ortho-metoxybenzoic acid. The core and outer electron X-ray photo electron spectroscopy spectra in the binding energy range of 0-1250 eV were shown to exhibit a complex, fine structure. The said structure was established due to the outer (0-15 eV binding energy) and inner (15-50 eV binding energy) valence molecular orbital from the filled Ln5p and O2s atomic shells multiple splitting, many-body perturbation, dynamic effect, etc. The mechanisms of such a fine structure formation were shown to manifest different probabilities in the spectrum of a certain electronic shell. There fore, the fine X-ray photo electron spectroscopy spectral structure resulting from a certain mechanism can be interpreted and its quantitative parameters related to the physical and chemical properties of the studied com pounds (degree of delocalization and participation of Ln4f electrons in the chemical bond, electronic configuration and oxidation states, density of uncoupled electrons on paramagnetic ions, degree of participation of the low binding energy filled electronic shells of lanthanide and ligands information of the outer and in nervalence molecular orbitals, lanthanide close environment structure in amorphous materials, etc).
Assessment of RELAP5 model for the University of Massachusetts Lowell Research Reactor
Authors: Bousbia-Salah Anis , Jirapongmed Areeya , Hamidouche Tewfik , White John , D'Auria Francesco , Adorni Martina
Published: November 2007

RELAP5 is a system code developed at the Idaho National Environmental and Engineering Laboratory for thermal hydraulic analysis of nuclear reactors. The code RELAP5 is widely used for safety analysis studies of commercial nuclear power plants. However, recent released version of RELAP5/3.2 and over present significant capabilities for analysis of nuclear reactor research systems. As a contribution to the assessment of RELAP5/3.3 for research reactor safety analysis, experimental data from the University of Massachusetts Lowell Research Reactor - UMLRR are used. The UMLRR is a 1 MW light water moderated and cooled, graphite-reflected, open-pool type research reactor. This paper presents the development and the validation of a UMLRR-RELAP model using experimental data. For this purpose, a series of experiments were performed for benchmarking RELAP5 calculations for research reactor systems. As a result of this study, the UMLRR nodalization is shown to be representative of the experimental data reactor behavior.
Electrochemical studies on stress corrosion cracking of incoloy-800 in caustic solution. Part II: Precracking samples
Authors: Dinu Alice , Abrudeanu Marioara , Radulescu Maria , Velciu Lucian
Published: November 2007

Stress corrosion cracking (SCC) in a caustic medium may affect the secondary circuit tubing of a CANDU NPP cooled with river water, due to an accidental formation of a concentrated alkaline environment in the areas with restricted circulation, as a result of a leakage of cooling water from the condenser. To evaluate the susceptibility of Incoloy-800 (used to manufacture steam generator tubes for CANDU NPP) to SCC, some accelerated corrosion tests were conducted in an alkaline solution (10% NaOH, pH = 13). These experiments were performed at ambient temperature and 85 ?C. We used the potentiodynamic method and the potentiostatic method, simultaneously monitoring the variation of the open circuit potential during a time period (E corr/time curve). The C-ring method was used to stress the samples. In order to create stress concentrations, mechanical precracks with a depth of 100 or 250 ?m were made on the outer side of the C-rings. Experimental results showed that the stressed samples were more susceptible to SCC than the unstressed samples whereas the increase in temperature and crack depth lead to an increase in SCC susceptibility. Incipient micro cracks of a depth of 30 ?m were detected in the area of the highest peak of the mechanical precrack.
Safety analysis of neutron flux optimization in irradiation channels at the NUR research reactor
Authors: Zergoug Tewfik , Mammou Laid , Mokeddem Mohamed , Bousbia-Salah Anis , D'Auria Franceso
Published: November 2007

Prior to core reloading, planned power upgrading, or as a part of required analyses of past events, accurate safety evaluations should be carried out. Generally speaking, the content of a safety report has to be modified whenever a new type or design of fuel is to be used in a reactor core. As the existing plants have well established licensing procedures, including well founded analysis methods, the application of new analysis methods has to be thoroughly evaluated, with specific emphasis on their capability of producing results beneficial to reactor operation. The detailed study presented here was carried out so as to insure that the allowed operational safety limits of the NUR research reactor are not exceeded under any circumstances.
Decommissioning of the ASTRA research reactor: Dismantling of the biological shield
Authors: Meyer Franz , Steger Ferdinand
Published: November 2007

The paper describes the dismantling of the inactive and activated areas of the biological shield of the ASTRA research reactor at the Austrian Research Center in Seibersdorf. The calculation of the parameters determining the activated areas at the shield (reference nuclide, nuclide vector in the barite concrete and horizontal and vertical reduction behaviors of activity concentration) and the activation profiles within the biological shield for unrestricted release, release restricted to permanent deposit and radioactive waste are presented. Considerations of located activation anomalies in the shield, e.g. in the vicinities of the beam-tubes, were made according to the reactor's operational history. Finally, an overview of the materials removed from the biological shield is given.