... general analyses of the validity of mechanical models involving friction, see, for example, Oden and Pires [154], Martins and Oden [147], Kikuchi and Oden [ 123 ], Klarbring [ 125 ], Tuzun and Walton ... case can be determined by studying the properties of the Hessian of V , 2 def [H] = ∂ V ∂x1 ∂x1 ∂ V ∂x1 ∂x2 ∂ V ∂x1 ∂x3 ∂2V ∂x2 ∂x1 ∂2V ∂x2 ∂x2 ∂2V ∂x2 ∂x3 ∂ V ∂x3 ∂x1 ∂ V ∂x3 ∂x2 ∂ ... and = (1 .25 ) ∂x1 ∂x2 ∂x3 Forces acting on a particle (1) that are always directed toward or away from another point and (2) whose magnitude depends only on the distance between the particle and...
... conceptualised as a set of mechanisms and processes that impose an obligation to reveal, to explain andto justify regulatory actions, and is therefore instrumental securing regulatory legitimacy Treating ... contributes to regulatory enforcement and compliance As we shall see, central to the study of regulatory enforcement is the width of discretion within regulatory systems (in the hands of both public and ... R and Cave, M 1999 Understanding Regulation: Theory, Strategy and Practice, Oxford: Oxford University Press Baldwin, R., and McCrudden, C 1987 Regulation and Public Law, London: Weidenfeld and...