Local composition models like UNIQUAC, NRTL and the UNIFAC group contribution method are used the world over in the synthesis and design of separation processes, as well as for a large number of other applications of industrial interest. They can…

There is ever-greater interest in the use of web technologies such as blogs in higher education. This study was designed to identify the perceptions held by students regarding the process of learning and interacting with their co-students through using blogs…

This paper presents a proposal enabling the modelling of manufacturing processes independently of the structure and composition of the industrial plant where these processes will ultimately be implemented. The rationale for the proposal is in the incorporation of knowledge, supported…

El propósito de este trabajo es profundizar en el conocimiento de que disponen los estudiantes de secundaria de los conceptos de trabajo y de calor. Se proponen diferentes actividades a 170 alumnos del último curso de la secundaria postobligatoria (17/18…

This paper describes the implantation of a KA tool kit for use with sublanguage-specific corpora. The key idea of KA as an evolutionary process is discussed in detail. Special attention is paid to the system's attempt to avoid the pitfalls…

There is no enough evidence about the effects of the new information and communication technologies (ICT) in Spain and how these ICT cause differences between regions. So, the aim of this work is to analyze the regional disparities relative to…

In this paper, a method to combine visual and force information using the
information obtained from the movement flow-based visual servoing system is proposed. This
method allows not only to achieve a given desired position but also to specify the…

Se citan 73 especies y subespecies de esfécidos pertenecientes a las subfamilias Sphecinae, Pemphredoninae,
Astatinae, Larrinae, Cabroninae, Nyssoninae, y Philanthinae (sensu Bohart y Menke,
1976); de las cuales Prosopigastra orientalis Beaumont, 1947 constituye nueva cita para la Península
Ibérica. Se…

Este estudio pretende profundizar en el conocimiento sobre el funcionamiento de pequeños humedales mediterráneos, en estado de degradación, que, por razones históricas y socioeconómicas, han quedado confinados en un espacio urbano, olvidando la importancia ambiental de estas anomalías hídricas positivas…

Los mecanismos financieros y la mediatización de los medios de comunicación ha
determinado la universalización de formas de vida, en los últimos años de este siglo, que
se difunde a través de los centros urbanos. Por todo ello los programas…