Using the underlying idea of the current-mode control, a new dynamical, sliding-mode control for the boost dc-dc converter is proposed. Such controller is easy to design, robust under load and input voltage variations, exhibits fast response, does not depend on…

Descripción completa.

This paper presents a knowledge-based approach to facilitate the engineering design
process relating to spacecrafts. Because the design evolves over a long time and typically
involves individuals working at different locations and frequently for different
organizations, the degree of collaboration…

of the remaining 263 species, we arrived at a specieslevel identification for 242, and identified the remainder to genus (19) or family (2). The recent discovery of these ornithological texts and paintings offers a unique view of the history of…

Descripción completa.

Descripción completa.

Descripción completa.

Descripción completa.

La interculturalidad ha sido privilegiada en la Constitución de la República Bolivariana de Venezuela, como precepto fundamental de reconocimiento de la otredad. Por ello se hace necesario conocer y valorar los conocimientos ecológicos y las especificidades lingüísticas, sociales, territoriales y…

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…