Energía: técnica, economía y sociedad

En la actualidad, buena parte de las pequeñas empresas, poblaciones ubicadas en áreas rurales y los hogares en general, están requiriendo acceso de mayor velocidad a Internet del que podría ofrecer un módem tradicional en una conexión conmutada. Existen distintas alternativas para lograr este cometido, tales como ADSL (Asymmetric Digital Subscriber Line), cable módem, conexión por fibra óptica, radio enlace (micro-ondas, spread spectrum), entre otras. Este documento presenta el estado del arte en el estándar IEEE 802.16, Interface aérea para sistemas de acceso inalámbrico de banda ...

This book will provide comprehensive, practical knowledge for the design of reinforced concrete buildings. The approach will be unique as it will focus primarily on the design of various structures and structural elements as done in design offices with an emphasis on compliance with the relevant codes. It will give an overview of the integrated design of buildings and explain the design of various elements such as slabs, beams, columns, walls, and footings. It will be written in easy-to-use format and refer to all the latest relevant American codes of practice (IBC and ASCE) at every stage....

Proceedings of a symposium organized by the IAEA and FAO, Vienna, 19-23 August 1985. The symposium examined the usefulness for plant breeding purposes of somaclonal variation, i.e. the occurrence of mutations during in vitro culture with or without the application of ionizing radiation or other mutagens. Another issue was finding ways and means of maintaining the genetic integrity of plants under in vitro conditions, such integrity being of vital importance if in vitro techniques are to be used to propagate virus-free clones of economically important plants, or to preserve germplasm in gene...

There is an increasing challenge for chemical industry and research institutions to find cost-efficient and environmentally sound methods of converting natural resources into fuels chemicals and energy. Catalysts are essential to these processes and the Catalysis Specialist Periodical Report series serves to highlight major developments in this area. This series provides systematic and detailed reviews of topics of interest to scientists and engineers in the catalysis field. The coverage includes all major areas of heterogeneous and homogeneous catalysis and also specific applications of...