The successful teaching of the object oriented programming paradigm has been identified as a difficult task. Coupled with the difficulty of conveying abstract concepts in general to students, is the complexity of the object oriented paradigm itself. A common approach to conveying complex abstract notions (such as algorithms or data structures) is the use of visualisations. This paper describes ...

Dynamic analysis of supported pipes conveying pulsating fluid is investigated in Hamiltonian system using precise integration method PIM . First, symplectic canonical equations of supported pipes are deduced with state variable vectors composed of displacement and momentum. Then, PIM with linear interpolation formula is proposed to solve these equations. Finally, this approach’s precision is te...

When the velocity of fluid flow in a cantilevered pipe is successively increased, the system may become unstable and flutter instability would occur at a critical flow velocity. This paper is concerned with exploring the dynamical stability of a cantilevered fluid-conveying pipe with an additional linear dynamic vibration absorber (DVA) attachment. It is endeavoured to show that the stability o...

This paper unearths the contribution of lexical cohesion to the textuality and overall meaning of Malcolm X’s speech 'The Ballot or the Bullet'. Drawing on Halliday and Hasan’s (1976) and Hoey’s (1991) theory of cohesion, specifically lexical   cohesion, whose main thrust is the role of lexical items in not only contributing to meaning but also serving as cohesive ties, the paper discusses how ...