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En la actualidad la papa es consumida en casi todos los pueblos del
Mundo, y es, junto al trigo, maiz y arroz uno de los cuatro
cultivos basicos en la alimentacion humana. Antecedentes mundiales
de 1991-1993 senalan que 275,4 millones de toneladas se produjeron
en 18,13 millones de hectareas, con un rendimiento promedio de 15
t.ha-1. Los 5 principales paises productores de papa en el mundo en
el ano 2003 fueron: China 55.813.331 t, Rusia 35.500.000 t, India
24.000.000 t, Estados Unidos 20.821.930 t y Ucrania 17.505.000 t,
estos cinco paises concentraron el 53% de los 311 millones de
toneladas que se produjeron. En la empresa La Cuba las labores
agricolas al cultivo de la papa se realizan de forma mecanizada,
esto implica un alto consumo de energia, que podria ser
improductivo si no se explota la maquinaria eficientemente. El
objetivo de este libro consiste en evaluar la energia consumida en
la mecanizacion del cultivo de la papa a traves de la metodologia
establecida, para la seleccion de la tecnologia mecanizada de mejor
productividad energetica."
Mathematics is a universal language. Differential equations,
mathematical modeling, numerical methods and computation form the
underlying infrastructure of engineering and the sciences. In this
context mathematical modeling is a very powerful tool for studying
engineering problems, natural systems and human society. This
interdisciplinary book contains a comprehensive overview, including
practical examples, of the progress achieved to date in the
modeling of coupled phenomena, computational mathematics and
mechanics, heat transfer, fluid-structure interactions,
biomechanics, and the flow of mass and energy in porous media.
Numerical subjects such as grid generation, optimization, finite
elements, finite differences, spectral methods, boundary elements,
finite volumes and meshless methods are also discussed in detail
using real examples.
The book provides a thorough presentation of the existing
numerical techniques with specific applications to concrete,
practical topics. The models and solutions presented here describe
various systems: mechanical, biological, geophysical, technical,
ecological, etc. The book is organized in thirty six chapters, each
written by distinguished experts in their respective fields. The
topics presented cover the current state of knowledge in numerical
engineering practice including recent and ongoing developments and
the presentation of new ideas for future research on applied
computational engineering mathematics.
The book will be of interest to scientists working in
engineering (structural, civil, mechanical), geology, geophysics,
aquifer research, petroleum engineering, applied mathematics, and
physics, as well as students in any of these areas.
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