Yes Dr bowkett is the admissions tutor but the interview with him will be general. I don't know what subject field he was in - poss. sciences, but he's the senior tutor here and i don't think he has done any teaching for years. I don't think he has a 'webpage' or myspace for that matter...
I applied for music, and although we did talk about music, it was general conversationly stuff coming from my Personal Statement, and nothing technical. Your interview with him will be similar and not techincal.
As for your othre interviewers, I don't have a clue, a quick google search might show you something, but it won't really matter. As has been said countless times on here, they ain't gonna quiz you just on their research areas, nor should you go and buy their books and quote pages at them in an attempt to brown-nose your way in. Just reading through some more general basic undergrad engineering type books (?!) would be more useful, I would imagine