Search results for "TRANSFORMATION"
showing 10 items of 1634 documents
Art-based social and educational action in Barcelona
2018
Des de fa uns anys, a Barcelona hi ha tot un moviment d’acció educativa que neix des de les arts i que fomenta la participació ciutadana en base a la cohesió social. Les noves propostes de l’educació artística tenen una forta component social, ja que impulsen la participació, tot redefinint els conceptes tradicionals de l’educació en arts. Hem entrevistat alguns dels promotors d’aquestes iniciatives per indagar en els models d’activitats i en les formes d’organització que representen. Hem descobert les problemàtiques que afecten a aquest model organitzatiu (precarietat, dependència institucional, canvis constants, atenció a tot tipus de públics), però també hem descobert els avantatges de g…
On the global dissipative and multipeakon dissipative behavior of the two-component Camassa-Holm system
2014
Published version of an article in the journal: Abstract and Applied Analysis. Also available from the publisher at: http://dx.doi.org/10.1155/2014/348695 Open Access The global dissipative and multipeakon dissipative behavior of the two-component Camassa-Holm shallow water system after wave breaking was studied in this paper. The underlying approach is based on a skillfully defined characteristic and a set of newly introduced variables which transform the original system into a Lagrangian semilinear system. It is the transformation, together with the associated properties, that allows for the continuity of the solution beyond collision time to be established, leading to a uniquely global d…
Artificial Neural Networks to correlate Hot Deformation Cooling Rate and Deformation Temperature on Continuous Cooling Transformation of 22MnB5 Steel
2016
The 22MnB5 steel is a hot stamping steel developed with the aim to satisfy the increasing request of the automotive industries to apply materials able to guarantee higher passive safety and weight reduction. The hot stamping process is an innovative forming technique in which the deformations are carried out at elevated temperature and allows to achieve high strength components. The experimental characterization of the material response, at different values of the main variables of process, may result both expensive and time consuming, but the mutual effects evaluation of the deformation parameters and the phase transformations are necessary to produce components within the desired properti…
Free Fields for Chiral 2D Dilaton Gravity
1998
We give an explicit canonical transformation which transforms a generic chiral 2D dilaton gravity model into a free field theory.
Effect of Plastic hot deformation on the hardness and continuous cooling transformations of 22MnB5 micro-alloyed boron steel
2009
The strains, transformation temperatures, microstructure, and microhardness of a microalloyed boron and aluminum precoated steel, which has been isothermally deformed under uniaxial tensile tests, have been investigated at temperatures between 873 and 1223 K, using a fixed strain rate value of 0.08 s−1. The effect of each factor, such as temperature and strain value, has been later valued considering the shift generated on the continuous cooling transformation (CCT) diagram. The experimental results consist of the starting temperatures that occur for each transformation, the microhardness values, and the obtained microstructure at the end of each thermomechanical treatment. All the thermome…
Wavelets Image Analysis for Friction Stir Processed TiNi Functional Behavior Characterization
2015
Abstract A key topic regarding Ti Ni Shape Memory materials concerns the possibility to attain welded junctions that preserves the shape memory properties of material. Other research topic for SMAs regards the retention of the shape memory effect cyclic stability; in fact, good shape memory properties frequently decrease during SME cycling of material. A method able to improve the cyclic stability of TiNi shape memory effect is the grain refinement. Considering these above mentioned research topics, a solid state welding process, as the Friction Stir Welding, is thus attractive for SMA joining and it exhibits potentials for achieving welded joints affected by microstructural changes that pr…
The moderator role of followers’ personality traits in the relations between leadership styles, two types of task performance and work result satisfa…
2014
Authentic leadership is changing our understanding of what makes good leadership. However, few studies have explored how followers’ individual differences and the nature of the task they perform affect its relation to followers’ work outcomes. We examine the moderator role of two core task types (intellective vs. generative) and two personality traits (conscientiousness and emotional stability) in the relationship between two leadership feedback styles (authentic vs. transactional) and task performance or work result satisfaction in a two-wave experiment. The sample consisted of 228 participants enrolled in an organizational psychology course, 34% of whom had work experience. Our results sh…
Automorphism Groups of Certain Rational Hypersurfaces in Complex Four-Space
2014
The Russell cubic is a smooth contractible affine complex threefold which is not isomorphic to affine three-space. In previous articles, we discussed the structure of the automorphism group of this variety. Here we review some consequences of this structure and generalize some results to other hypersurfaces which arise as deformations of Koras–Russell threefolds.
Trascendental Solutions of the sine-Gordon Equation
2002
Proceedings of the International Conference Riga Readings in Social Sciences
2020
Conference Proceedings of the International Conference Riga Readings in Social Sciences (RRSS). The Advanced Social and Political Research Institute, Faculty of Social sciences, University of Latvia annually organizes the international scientific conference Riga Readings in Social Sciences. The 1st RRSS conference (November 23, 2017) explored different transformations of civic society and various dimensions of inequality in contemporary Europe. Key-note speeches were devoted to the different aspects of social inequality. The 2nd RRSS conference (November 22-23, 2018) Baltic Sea Region: Hundred Years On. Contributions from interdisciplinary areas of studies (regional development, human devel…