Biofuels
208 Visitas | 140 Descargas | 2014-04-08 14:19:44 | raulito
Descripción
This volume on Biofuels covers the use and conversion technologies of biomass as a renewable resource to produce bio-energy in a sustainable way, mainly in the form of liquid and gaseous biofuels. These biofuels are a convenient renewable energy carrier for specific purposes, with transportation as an important application sector. Renewable biomass is produced annually, based on photosynthesis, and is available in different forms, depending on climatic conditions and economic situations around the world. Chemical and thermochemical methods, as well as fermentation and biocatalysis technologies, are essential to efficiently convert biomass directly or indirectly into biofuels, with bio-ethanol, biodiesel and biogas as today’s main practical players. In this context, green biotechnolo...
Yo soy el Diego
224 Visitas | 266 Descargas | 2013-10-01 18:30:53 | daimape
Descripción
El futbolista argentino Diego Armando Maradona nos relata su paso por el mundo del fútbol. Encontraremos anécdotas, curiosidades y reflexiones acerca de su vida como jugador....
THE THERMOECONOMICS OF ENERGY CONVERSIONS
165 Visitas | 101 Descargas | 2016-01-15 19:02:36 | raulito
Descripción
The increasing demand for power and material products by current energy conversion technologies using fossil and nuclear fuels on one hand and the adverse impact on the environment on the other hand, did create an energy conversion crisis that is going to stay for decades to come. The increasing demand is driven by the increase of world population and a rising standard of living. The adverse impact is emissions, waste disposal, and the signs of global warming. The long-lasting energy conversion crisis is due to the absence of alternative energy resources and conversion technologies that are both friendly to the environment and economically competitive to the present ones. Until emerging or new competitive technologies become available, the cost-effective increase of the conversion effici...
El rey del castillo
183 Visitas | 166 Descargas | 2015-10-01 14:32:41 | chao
Descripción
El apuesto y solitario conde De la Talle espera en su castillo al restaurador de unas pinturas, pero quien llega es una mujer, la hermosa Dallas Lawson. La sorpresa inicial de los habitantes de la mansión será sustituida paulatinamente por el respeto que Dallas se gana con su trabajo. Sin embargo, poco a poco la protagonista va dejando a un lado el proceso de restauración para indagar en los secretos que encierran las murallas del castillo. Así, al mismo tiempo que resuelve un insondable misterio, Dallas descubrirá el amor, aunque tendrá que elegir entre dos hombres....