JSJoy SumnerAcademic Fellow in Energy Materials Cranfield University, UKFollowUsage metrics Co-workers & collaboratorsSGSimon GraySimon GrayJNJohn NichollsJohn NichollsNSNigel SimmsNigel SimmsLBLaurie BrookingLaurie BrookingKDKarl DawsonKarl DawsonGTGordon J. TatlockGordon J. Tatlock