1 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.1 Chapter 3

2 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.2 Chapter 3

3 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.3 Chapter 3

4 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.4 Chapter 3

5 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.5 Chapter 3

6 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.6 Chapter 3

7 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.7 Chapter 3

8 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.8 Chapter 3

9 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.9 Chapter 3

10 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.10 Chapter 3

11 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.11 Chapter 3

12 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.12 Chapter 3

13 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.13 Chapter 3

14 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 3.14 Chapter 3