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…

Traditionally the weed management has been done considering the overall weed infestation in the whole field and then herbicides are sprayed according to a single weed control recommendation for the field. But weeds are not uniformly distributed and normally have…

The yearly genetic progress obtained by breeding for increased soybean yield has been considered acceptable worldwide. It is common sense, however, that this progress can be improved further if refined breeding techniques, developed from the knowledge of the genetic mechanisms…

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ABSTRACT: Despite of all modem communications tools, difficulties of dialogue still exist between technicians and local community members when dealing with natural resources. This is related to many factors, from the predominantly technical formation of the teachers and researches to…

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Of the many "unconsidered trifles" found amidst Shelleyiana and within Shelley's notebook jottings, this article selects eight examples, spanning his authorial career (1810-1822). Each involves a problem involving attribution, or decipherment, or source identification, which the author believes herself to…

El siguiente proyecto de tesis destaca la importancia de rescatar el valor patrimonial de una edificación ubicada en el Centro Histórico de Quito, con el fin de aportar una respuesta innovadora en el campo de la vivienda, además de una…

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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…