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Search Results: 1 - 10 of 1272 matches for " Katia Vutova "
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Electron Beam Melting and Refining of Metals: Computational Modeling and Optimization
Katia Vutova,Veliko Donchev
Materials , 2013, DOI: 10.3390/ma6104626
Abstract: Computational modeling offers an opportunity for a better understanding and investigation of thermal transfer mechanisms. It can be used for the optimization of the electron beam melting process and for obtaining new materials with improved characteristics that have many applications in the power industry, medicine, instrument engineering, electronics, etc. A time-dependent 3D axis-symmetrical heat model for simulation of thermal transfer in metal ingots solidified in a water-cooled crucible at electron beam melting and refining (EBMR) is developed. The model predicts the change in the temperature field in the casting ingot during the interaction of the beam with the material. A modified Pismen-Rekford numerical scheme to discretize the analytical model is developed. These equation systems, describing the thermal processes and main characteristics of the developed numerical method, are presented. In order to optimize the technological regimes, different criteria for better refinement and obtaining dendrite crystal structures are proposed. Analytical problems of mathematical optimization are formulated, discretized and heuristically solved by cluster methods. Using important for the practice simulation results, suggestions can be made for EBMR technology optimization. The proposed tool is important and useful for studying, control, optimization of EBMR process parameters and improving of the quality of the newly produced materials.
La Unión Europea, entre mercado global y crisis del Estado
Castaldo,Katia;
Frónesis , 2009,
Abstract: europe, which has always thought along global lines, has constantly sought to understand itself in world history and the history of the world in relation to it, today ought to make irony its category. the new europe, given that its being is a power that dominates from a center, ought to know how to construct itself as a viewpoint about the world, not forgetting and starting from its own political-institutional heritage. if europe would do this, she could not talk about herself without starting from the experience of her greatest invention: the nation-state, the ?greatest artifice capable of universality?. facing what has most frequently been called a crisis of the state, europe ought, then, to propose itself -in continuity with its history, which has been, from its origins, marked by multiplicity in unity- as the ?place? where the unity of a political-institutional ultra-state space happens through the re-composition of metaphysics and politics to a new level of unity that has had its origins in the state form.
O poeta da vida moderna
Muricy, Katia;
Alea : Estudos Neolatinos , 2007, DOI: 10.1590/S1517-106X2007000100004
Abstract: walter benjamin had an allegorical approach to analyse the vision of modernity inscribed in baudelaire?s poetry. the allegorical mode proceeds by way of "the mortification of the literary work". there are allegorical similarities between benjamin?s writings as a literary critic and baudelaire?s poetical work. for benjamin, the most productive implications of baudelaire?s conception of modernity are to be found in the poems of the flowers of evil, not in baudelaire?s critical essays. in contrast with benjamin, michel foucault, who recognized the allegorical character of contemporary literature after mallarmé, was not interested in the poetical work of baudelaire. this lack of interest can be explained by foucault?s refusal to have allegorical approach himself. so he loses, in the limits of "archaeology" of the sixties, the richest expression of modernity. later, foucault recognizes the importance of baudelaire?s view of modernity, but still considers only his aesthetic reflections, not his poetry. for benjamin, "in baudelaire?s view of modernity, the theorie of modern art is the weakest point".
La enunciación del espacio en Traquinias: Construcción y aniquilamiento del ámbito doméstico
Obrist,Katia;
Circe de cl??sicos y modernos , 2009,
Abstract: one typical aspect of the greek theatre is the tension created in the relationship between not only different spaces but also between places that are visible and those which are not. in this occasion we will focus our attention on the bond, in the greek tragedy, between the external and the inner spaces in the palace and their point of connection: the σ? door. we start from the conviction that this threshold is a key point of analysis, since it connects these spaces which correspond to especially significant appreciations in the greek imaginary and that, besides, they integrate themselves in a revealing way in the tragic universe. traquinias presents itself as a privileged play to tackle this issue, since in this play the different spaces and the contact among themselves are fundamental aspects for the development of the plots. in the general framework of the semiotics of the theatre, we will approach from the linguistics of enuntiation the elements of the ?ξ that, through the reference to the movement of the actors' bodies, they organize the discursive space and they make it possible the presence, in the scene, of the hidden dimension of the inner space.
As mulheres e as práticas corporais em clubes da cidade de S?o Paulo do início do século XX
Rubio,Katia;
Revista Portuguesa de Ciências do Desporto , 2009,
Abstract: the woman condition at 20?s was determined by a discourse that, based in the public life and dedication to a private life. at the same time the feminist movement fight to the rights of the women to citizenship and a social life outside. among physical education, the discourses added a woman physically active. the athletics?, classic dance and basketball started to be consider health activities to women. the subjective of this paper is to discuss how it was the women participation at the corporal practices in clubs at 20?s of 20th century in sao paulo.
Globalizzazione e diritti umani: un dibattito italiano
CASTALDO,Katia;
Utopìa y Praxis Latinoamericana , 2005,
Abstract: la autora analiza las complejas e íntimas relaciones entre los derechos humanos y la globalización y las consecuencias de ésta en la reconfiguración del espacio público y en la composición del espacio virtual. la globalización es expuesta mediante una lectura crítica como fenómeno político de privatización del mundo, que nulifica los fines sociales y desnaturaliza la dimensión de la socialidad humana, conduciendo inexorablemente al fenómeno de la deculturización manifestada con la neutralidad de la política y la homogeneización del individuo. en el espacio global se erosionan los límites, se extinguen los confines y con ello la posibilidad de la relación auténtica y del contacto con el otro para la constitución de la comunidad, siendo este espacio propicio para la imposición de un orden de fuerza. por el proyecto que implica, la globalización conlleva al individuo separado y egoísta, a la incultura como indisponibilidad de escuchar al otro.
Sovranità e diritti umani: Per uno spazio europeo dei diritti
Castaldo,Katia;
Utopìa y Praxis Latinoamericana , 2008,
Abstract: in ?times? of a profound crisis for public spaces, principally the crisis of sovereignty, collective identity, pertinence and radicalisms, europe wishes to be a bastion of ?resistance to globalization? and, as a whole, a space for affirming and guaranteeing the rights that should be recognized for citizens through the language of politics. starting from its long civilizing tradition, between dialog and openness, understanding sovereignty as the historical condition that makes rights effective, europe can be considered as a new political space that is not reduced to the ?administration or management of bank accounts.? on the contrary, it is actually a political space for future projects that allow men to recover their capacity to think and create through symbols.
Unaccompanied asylum-seeker children: flawed processes and protection gaps in the UK
Katia Bianchini
Forced Migration Review , 2011,
Abstract: My experience of working as an immigration lawyer on unaccompanied asylum-seeker children’s cases has highlighted a number of serious flaws in the processes which determine their futures....
On discourses and practices: paths toward quality in television Dos discursos e práticas: caminhos para uma televis o de qualidade
Katia Santos
Galáxia , 2009,
Abstract: : On discourses and practices: paths toward quality in television — Divided into discursive and practical arguments, the book offers twenty relevant articles to underpin a debate on the concept of quality in television. Instigating and current issues are raised about the theme, from theory and history to a discussion of public regulatory policies and the spectator's view to an analysis of video clips and television programs on public and private TV channels in European and Latin American countries. Dividido em argumentos discursivos e práticos, o livro reúne vinte artigos relevantes para o debate em torno do conceito de qualidade em televis o. Foram levantadas quest es ins- tigantes e atuais sobre o tema, que v o desde a teoria e a história, passando pela discuss o das políticas públicas de regulamenta o e o olhar do espectador, indo até a análise de videoclipe e programas de televis o em emissoras públicas e privadas de países da Europa e América Latina.
The necessity of Intercultural Communication for a peaceful world
Katia Scannavini
Academicus : International Scientific Journal , 2013, DOI: 10.7336/academicus.2013.08.11
Abstract: Our times are often referred to as the new world order with its new economy. What this means is that capitalism has been restructured on a global scale, and people of widely different cultural and linguistic backgrounds have been thrown into contact more than ever before. Cultural contact may occur in the flows of information and mass media, as well as in the flows of actual people in migration. Given the ubiquity of cultural contact, mergers and hybrids, it is unsurprising that there should be a strong interest in intercultural communication. If intercultural communication is an exchange of stimuli, data and information through an interaction between individuals came from different local communication contexts, we can daily come across this type of communication process. Sociology as a discipline makes an important contribution to the study of intercultural communication: it is the key contribution of discourse analysis to take culture as empirical and cultural identity, difference and similarity as discursive constructions. Moreover, to investigate whether it is possible to avoid any of the problems of intercultural communication, it is suitable to start with the communication situation itself and analyze why misunderstanding and conflict arise. Today a new form of communication is necessary; it should take itself away from the temptation of merging, tolerating and joining together different cultural realities. Intercultural communication today moves towards an horizon much more complex, which offers a new interpretation: in fact it is necessary to promote cultural coordination and cooperation.
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