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— In an Orthogonal Frequency Division Multiplexing (OFDM) system using DQPSK, such as DAB, channel equalization is considered to be unnecessary. The reason for this is that there is no relative phase rotation due to the multipath channel in successive OFDM symbols provided the channel delays are all shorter than the guard interval of the OFDM symbol.… (More)
T here is a growing realization that nurturing scientists for the 21st century requires engaging students in the processes of doing science (1). For students to be engaged in the process of doing physics, they need to learn to think like a physicist. Physics is more than the fi nal content that we assess in a traditional exam. Much of its richness is the… (More)
I am researching my family tree and would appreciate some help. I am looking to find more information about my uncle, Francis Cyril Mason, who was a nurse.