Strategies for the control of climate- and irrigation-related variables are brought forward. The uses of PID control and feedforward compensators, both widely used in commercial tools, are summarized. The benefits of advanced control techniques—event-based, robust, and predictive control, for example—are used to improve on the performance of those basic methods.
A hierarchical control architecture is developed governed by a high-level multiobjective optimization approach rather than traditional constrained optimization and artificial intelligence techniques. Reference trajectories are found for diurnal and nocturnal temperatures (climate-related setpoints) and electrical conductivity (fertirrigation-related setpoints). The objectives are to maximize profit, fruit quality, and water-use efficiency, these being encouraged by current international rules. Illustrative practical results selected from those obtained in an industrial greenhouse during the last eight years are shown and described. The text of the book is complemented by the use of illustrations, tables and real examples which are helpful in understanding the material.
Modeling and Control of Greenhouse Crop Growth will be of interest to industrial engineers, academic researchers and graduates from agricultural, chemical, and process-control backgrounds.
Cuentos eróticos que tienen siempre una raíz común, normalmente griega, adaptados posteriormente a las distintas culturas y enseñanzas y que contribuyeron, que duda cabe, a través de cuentistas como Chaucer o Boccaccio al nacimiento de la novela moderna.
Infidelidades, amantes, maldades, vicios, amores, astucia y violencia. Historias populares, universales y perennes traducidas por el premio de las Letras Rodríguez Adrados e ilustradas por Antonio Mingote.
Activated Carbon will make essential reading for Material Scientists, Chemists and Engineers in academia and industry.Characterization of porosityThe surface chemistry of the carbonsMethods of activation and mechanisms of adsorptioComputer modelling of structure and porosity within carbonsModern instrumental analytical methods