A thermal-mechanical analysis of the behavior of the segments of the rollers of the briquetting machines is carried out due to the effect of thermal shock and efforts exerted on the part. It is intended to obtain the main causes that generate this problem, through a mechanical analysis that simulated the behavior in the presence of several thermal gradients. The purpose of the study is to reduce maintenance costs and the continuous replacement and repair of segments, as well as losses (...) in tons of production due to the failure that are of great impact to the industry. This investigation allows us to know to what extent the operating parameters, such as: material temperature, pressure, torque, speed of the rollers influence the life of the segments according to their manufacturing material and based on these the behavior is simulated during the briquetting process. Keywords: Simulation, Finite element, Briquettes. [1]D. F. Pinzón, «Diseño óptimo de Sistemas de Distribución,» Universidad Nacional de Colombia, Bogotá, 2014. [2]F. A. Mendoza Lameda, «Diseño multiobjetivo y multietapa de sistemas de distribución de energía eléctrica aplicando algoritmos evolutivos,» Universidad de Zaragoza, Zaragoza, 2010. [3]L. Miró Hernández y R. Vizcón Toledo, «Sistema Hibrido Propuesto Para la Generación de Electricidad en un Policlínico,» Revista Avanzada Científica, vol. 9, nº 2, pp. 50-56, 2006. [4]J. Lagunas M., C. Ortega S. y P. Caratozzolo M., «Control supervisorio para sistemas híbridos de geración eléctrica basado en lógica difusa,» Boletin UE, Monterrey, 2005. [5]J. L. Bernal Agustín, «Aplicación de algoritmos genéticos al diseño óptimo de sistemas de distribución de energía eléctrica,» Universidad de Zaragoza, Zaragoza, 1998. [6]V. MIranda, J. V. Ranito y L. Proenca, «Genetic Algorithms in Optimal Multistage Distribution Network Planning, » IEEE, Porto, 1994. [7]I. Ramirez-Rosado y J. Dominguez-Navarro, «Computer Aided Desing of Power Distribution Systems: Multiobjective Mathematical Simulations» International Journal of Power and Energy Systems, vol. 19, nº 4, pp. 1801-1810, 2004. (shrink)

The incorporation of hybrid systems based on renewable sources for the optimization of electricity distribution systems and planning of power supply strategies using genetic algorithms is studied. A series of characteristics of electrical sub-stations was chosen and through simulations, data were obtained for the optimization of the existing infrastructure, which provides reliability, security, economic supply and quality of service. An algorithm was obtained with the optimal configuration of various components: photovoltaic panels, batteries, AC generator, fuel cell and inverter, which in (...) the case of mono-objective optimization, minimized total system costs throughout its useful life. The most appropriate control strategy or combination of control variables was obtained to minimize costs. Keywords: Electrical distribution, Hybrid systems, Genetic algorithms. References [1]D. F. Pinzón, «Diseño óptimo de Sistemas de Distribución,» Universidad Nacional de Colombia, Bogotá, 2014. [2]F. A. Mendoza Lameda, «Diseño multiobjetivo y multietapa de sistemas de distribución de energía eléctrica aplicando algoritmos evolutivos,» Universidad de Zaragoza, Zaragoza, 2010. [3]L. Miró Hernández and R. Vizcón Toledo, «Sistema Hibrido Propuesto Para la Generación de Electricidad en un Policlínico,» Revista Avanzada Científica, vol. 9, nº 2, pp. 50-56, 2006. [4]J. Lagunas M., C. Ortega S. and P. Caratozzolo M., «Control supervisorio para sistemas híbridos de geración eléctrica basado en lógica difusa,» Boletin UE, Monterrey, 2005. [5]J. L. Bernal Agustín, «Aplicación de algoritmos genéticos al diseño óptimo de sistemas de distribución de energía eléctrica,» Universidad de Zaragoza, Zaragoza, 1998. [6]V. MIranda, J. V. Ranito and L. Proenca, «Genetic Algorithms in Optimal Multistage Distribution Network Planning, » IEEE, Porto, 1994. [7]I. Ramirez-Rosado and J. Dominguez-Navarro, «Computer Aided Desing of Power Distribution Systems: Multiobjective Mathematical Simulations» International Journal of Power and Energy Systems, vol. 19, nº 4, pp. 1801-1810, 2004. (shrink)

Guidelines around the world require children to provide assent for their participation in most research studies. Yet, little further guidance is provided on how review committees should implement this requirement, including which children are capable of providing assent and when the requirement for assent may be waived on the grounds that the research offers participating children the potential for important clinical benefit. The present paper argues that the assent requirement is supported by the importance of allowing children who are capable (...) to make their own decisions. This suggests children are capable of assent when they become able to understand the research in question. While development varies across individual children, existing data suggest most children develop this ability by approximately age 14. Until instruments are developed to assess the assent capacity of individual children, this age should be used as the threshold for assent. In addition, the importance of protecting children from harm suggests that the sustained dissent of all children, including those who are unable to provide assent, should be respected. While the assent requirement may be waived when research participation offers the potential for important medical benefit that is unavailable outside the research context, analysis suggests that children’s sustained dissent should be respected in all cases. (shrink)

The article of Shestopalets D.V. deals with the construction of theological discourse in the publications of the Spirituals Administration of Muslims of Ukraine. Special attention is devoted to the topics that represent the “proper” image of Islam, the problem of orthodoxy, approaches to interpretation of the Quran and legitimization of the religious authority of Muslim scholars.

This paper develops the concept of ‘creative attention’. Against classical theories that understand attention as a spotlight that brings objects into focus, I will argue that attention is a complex phenomenon structured in different layers. The most basic layer is perceptual, passive and pre-predicative: at this level, attention is creative – and this is the central claim of this paper – because it institutes meanings and rules for our behaviour.

A stream of conscious experience is extremely contextual; it is impacted by sensory stimuli, drives and emotions, and the web of associations that link, directly or indirectly, the subject of experience to other elements of the individual's worldview. The contextuality of one's conscious experience both enhances and constrains the contextuality of one's behavior. Since we cannot know first-hand the conscious experience of another, it is by way of behavioral contextuality that we make judgements about whether or not, and to what (...) extent, a system is conscious. Thus we believe that a deep understanding of contextuality is vital to the study of consciousness. Methods have been developed for handling contextuality in the microworld of quantum particles. Our goal has been to investigate the extent to which these methods can be used to analyze contextuality in conscious experience. (shrink)

La foi et la raison. La foi, don de Dieu. La raison, don de l'homme ou don de Dieu? La foi et la raison eurent à combattre, comme si le ciel et la terre vivaient en conflit incessant. Le combat demeure, différent certes, parce que l'homme oublie ses origines sans en regarder la cause. Jean-Paul II s'est lancé dans cette épreuve, en rédigeant une encyclique, pour enfin tenter de sortir l'homme de son enfermement dialectique. Le magistère de l'Eglise catholique lui (...) en donne l'autorité et la lui demande, pour enfin réconcilier l'homme avec lui-même et avec Dieu"-- Back cover. (shrink)

With the recent developments in the Human Genome Mapping Project and the new technologies that are developing from it there is a renewal of concern about eugenic applications. Francis Galton (b1822, d1911), who developed the subject of eugenics, suggested that the ancient Greeks had contributed very little to social theories of eugenics. In fact the Greeks had a profound interest in methods of supplying their city states with the finest possible progeny. This paper therefore reviews the works of Plato (The (...) Republic and Politics) and Aristotle (The Politics and The Athenian Constitution) which have a direct bearing on eugenic techniques and relates them to methods used in the present century. (shrink)

We present the true stages machinery and illustrate its applications to descriptive set theory. We use this machinery to provide new proofs of the Hausdorff–Kuratowski and Wadge theorems on the structure of $\mathbf {\Delta }^0_\xi $, Louveau and Saint Raymond’s separation theorem, and Louveau’s separation theorem.

Fichte’s Doctrine of Science of 1811 offers a sound model for explaining the conditions of semantics in its connection with the idea of freedom. Following Wolfram Hogrebe’s suggestion that the principle of contradiction works as an archaeological semantic postulate, i.e., is the implicit condition for any sentence to be meaningful, we argue that in Fichte’s definition of the phenomenon we find such a semantic postulate at a higher genetic level than the principle of contradiction indicated by Hogrebe. Moreover, the Doctrine (...) of Science of 1811 offers an analysis of the steps through which this phenomenon displays itself – i.e. Vermögen, als, Soll – which can be understood as the conditions for establishing a meaningful sentence. Fichtes Wissenschaftslehre 1811 kann uns einen soliden Modell zur Erklärung der Entstheung von Semantik anbieten. Mein Beitrag fangt mit der Darstellung Wolfram Hogrebes Hypothese an, dass der Satz vom Widerspruch als archäologisches Bedeutungspostulat fungiert, d.h. als implizite Bedingung der Möglichkeit jeglicher bedeutenden Äußerung. Ausgehend dieser Idee Hogrebes, hier schlage ich vor, dass man im Fichtes Begriffe der Erscheinung ein genetisch höheres archäologisches Bedeutungspostulat als der Satz vom Widerspruch finden kann. Daraufhin bietet die Wissenschaftslehre 1811 einen Einsicht in alle Schritte, wodurch die Erscheinung sich entfaltet – Vermögen, Durch, Als, Soll – die wir als die entsprechende Bedingungen für die Herstellung eines bedeutungsvollen Satzes verstehen können. (shrink)

Purpose. The aim of the article is to clarify the content of the concept of culture as an explication of vitality within the philosophy of life and its further modifications in current problems of contemporary. The analysis performed standing from the point, that contrasting of nature and culture is irrelevant, since culture does not contradict natural determinants and patterns, but rather qualitatively alters them. So, are justified the idea of culture as a phenomenon that exist accordingly and in proportion to (...) nature, need to form its potential and content and not contradict the axioms and values of life. Theoretical basis. In the theoretical field of philosophy of life, the local development of the problem of culture as an explication of vitality produces grounds for analytical and prognostic activity concerning meaningful transformations in a separate historical and social horizon. The fundamental categories of culture: spirit, value, symbol, freedom, justice and harmony receive the requested content and meaning. The idea of the constancy and super-naturality of cultural universals is illusory and dangerous. The consequences of such a "non-cosmological" justification of freedom and will, and the assertion of values, that contradict the logic of life, are the global environmental, economic and social crisis of our time. Originality. The originality of the authors’ thought lies in the interpretation of the essence of culture as an explication of vitality, as a logical and natural extension of life. In this formulation of the problem of culture, the possibility of reconciling the natural, social and value determinants of human life is formed. Theorists of the philosophy of life substantiated the primacy and supremacy of the values of life over the values and meanings of culture. The position of authors position consists in the need to understand culture as an environmentally appropriate and dimensional phenomenon, the content and strategies of which are determined by a single ontology. Conclusions. The analysis let authors understand the voluntarily chaotic element of life. Culture in its philosophical analysis took on a clearer anthropomorphic dimension: the immanent logic of being in substantiating the essence and purpose of man and the value of his being localized the universe of transcendence in the concept of "living world", "inhabited space", "human, too human". Accordingly, the range of cultural evaluations has been polarized: from the approving statement of its vital essence, to the disparaging calls for its reform. The chaotic state of voluntarily acts is transformed into cultural codes and stereotypes by rationalization. The modern global nature of crisis phenomena, both in the worldview, in the social, and in the ecological dimension, requires reformatting the understanding of culture as a continuation of nature, and not its antipode. (shrink)

Two conservative theorists, F. A. Hayek and Michael Oakeshott, have advanced theories of law with important and plausible central theses focusing on the rule of law. The author argues, however, that in each case the theorist ‐ or at least some of his followers on the contemporary British and American political scene ‐ have wrongly inferred strong conclusions from these theories which are inimical to the welfare state. In conclusion, the author points to possible ways of reconciling rule of law (...) to social justice. (shrink)

In this paper I discuss the important yet overlooked role played by time in public health ethics, clinical ethics, and personal ethics, and present an exploratory analysis of temporal inequalities and temporal autonomy.