This book is a compilation of the recent progress on friction stir technologies including high-temperature applications, industrial applications, dissimilar alloy/materials, lightweight alloys, simulation, control, characterization, and derivative technologies. The volume offers a current look at friction stir welding technology from application to characterization and from modeling to R&D. Contributions document advances in application, controls, and simulation of the friction stir process to aid researchers in seeing the current state-of-the-art.

This books presents a current look at friction stir welding technology from application to characterization and from modeling to R&D. It is a compilation of the recent progress relating to friction stir technologies including derivative technologies, high-temperature applications, industrial applications, dissimilar alloy/materials, lightweight alloys, simulation, and characterization. With contributions from leaders and experts in industry and academia, this will be a comprehensive source for the field of Friction Stir Welding and Processing.

This books presents a current look at friction stir welding technology from application to characterization and from modeling to R&D. It is a compilation of the recent progress relating to friction stir technologies including derivative technologies, high-temperature applications, industrial applications, dissimilar alloy/materials, lightweight alloys, simulation, and characterization. With contributions from leaders and experts in industry and academia, this will be a comprehensive source for the field of Friction Stir Welding and Processing.

This collection focuses on all aspects of science and technology related to friction stir welding and processing.

This collection focuses on all aspects of science and technology related to friction stir welding and processing.

A tremendous technological transformation during the last two decades has provided a potential growth in the area of digital communication and lot of newer applications and technologies are coming up every day. The looking to the limitations of a 3G wireless communication system, a more improvised 4G mobile system is thought off, having more transmission data rate, typically up to 1Gbps which requires lesser band-width, meaning a combination of modulation and multiplexing can be a promising solution. The OFDM has thus come out as a solution for the 4G system which can fulfill both the requirements. The performance of an OFDM system is preferably measured in terms of BER by varying the SNR. The next step is to developing two pulse shapes named as Proposed-I and Proposed-II pulse shapes with requisite theoretical background and adequately supported by simulation results. This betterment in BER performance has been observed for almost all values of roll off factors. The overall contribution of this book is the development of two pulse shapes providing better BER performance in an OFDM system (European Model with 2K Mode DVB-T Standards) with QAM as digital modulation technique.