Cos'è un Mondo? Un Mondo è un futuro in cui è possibile credere, e il worlding è l'arte di creare quei futuri, un processo il cui fine non è la singola Opera - il romanzo, il film, il videogame - bensì un congegno in grado di animarsi, perpetuare i propri meccanismi e, infine, compiere il prodigio di sopravvivere al suo creatore: un universo che dall'inerzia della carta (o dello schermo) diventa materia vivente, instillando nei fruitori il desiderio di continuare ad abitarlo e contribuire alla sua espansione. Il manuale di Cheng non è tuttavia una semplice guida alla progettazione di Mondi, bensì un viaggio introspettivo che indaga la psiche dell'artista e le complesse dinamiche del processo creativo. Passando dalla psicologia al game design, dalla religione al cinema, Cheng ci mostra come prendere pieno controllo della nostra immaginazione imparando a distinguere nell'apparente cacofonia che ci abita le voci delle «maschere» che vivono in ognuno di noi.

This book provides a concise introduction to the complex subject of patent law as a major branch of intellectual property rights. It describes the application of patent law in order to obtain a patent for a scientist's invention. Comparison is also made between the patent laws of the four major jurisdictions under which most of the applications for patents are presently filed worldwide — China, Europe, Japan, and the USA. The systematic description of the patent process from draft to grant is aimed at facilitating teamwork between the inventor and the patent lawyer or intellectual property manager so that the invention is not only a great scientific achievement, but also a product of economic value for the applicant and the inventor.

A comprehensive reference giving a thorough explanation of propagation mechanisms, channel characteristics results, measurement approaches and the modelling of channels

Thoroughly covering channel characteristics and parameters, this book provides the knowledge needed to design various wireless systems, such as cellular communication systems, RFID and ad hoc wireless communication systems. It gives a detailed introduction to aspects of channels before presenting the novel estimation and modelling techniques which can be used to achieve accurate models.

To systematically guide readers through the topic, the book is organised in three distinct parts. The first part covers the fundamentals of the characterization of propagation channels, including the conventional single-input single-output (SISO) propagation channel characterization as well as its extension to multiple-input multiple-output (MIMO) cases. Part two focuses on channel measurements and channel data post-processing. Wideband channel measurements are introduced, including the equipment, technology and advantages and disadvantages of different data acquisition schemes. The channel parameter estimation methods are then presented, which include conventional spectral-based estimation, the specular-path-model based high-resolution method, and the newly derived power spectrum estimation methods. Measurement results are used to compare the performance of the different estimation methods. The third part gives a complete introduction to different modelling approaches. Among them, both scattering theoretical channel modelling and measurement-based channel modelling approaches are detailed. This part also approaches how to utilize these two modelling approaches to investigate wireless channels for conventional cellular systems and some new emerging communication systems. This three-part approach means the book caters for the requirements of the audiences at different levels, including readers needing introductory knowledge, engineers who are looking for more advanced understanding, and expert researchers in wireless system design as a reference.

• Presents technical explanations, illustrated with examples of the theory in practice
• Discusses results applied to 4G communication systems and other emerging communication systems, such as relay, CoMP, and vehicle-to-vehicle rapid time-variant channels
• Can be used as comprehensive tutorial for students or a complete reference for engineers in industry
• Includes selected illustrations in color
• Program downloads available for readers
• Companion website with program downloads for readers and presentation slides and solution manual for instructors

Essential reading for Graduate students and researchers interested in the characteristics of propagation channel, or who work in areas related to physical layer architectures, air interfaces, navigation, and wireless sensing