Author:Hillie, T; Hlophe, MDate:Aug 2012This chapter discusses water and its sources; the main focus is put on surface water and ground water. Factors such as water pollution and sewage are also discussed in areas of mining and agriculture. Furthermore the global water challenges ...Read more
Author:Mwakikunga, Bonex W; Malwela, T; Hillie, T; Ndlovu, GDate:Oct 2011Traditional gas sensors involve heating the sensor material for gas selectivity. New gas approaches require activation by a broadband UV light source. The authors propose to employ a tuneable UV source in which this source is tuned for its ...Read more