Staff publications (SAS)
Permanent URI for this collection
Browse
Browsing Staff publications (SAS) by Type "Book chapter"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
Item Open Access Human error in the engineering design process.(Professional Engineering Publishing, 2000) Busby, Jeremy S.A study was conducted of human error in the engineering process of 5 organisations that designed industrial equipment. Approximately 150 errors that had taken place were analysed individually and then coded according to the particular design activity that failed. Modes of error that were common to error in different activities were then identified. Among the primary modes of error were cases where designers failed to elicit the constraints and requirements presented by the outside world, but did so because they had fallacious beliefs that were nonetheless reasonable inferences from limited historical experience. Error was also associated 1) with the emergence of latent constraints when scaling up a design, 2) with refining designs that made them vulnerable to uncertainties in the external world, 3) with modifying existing designs whose rationale was obscure, and 4) with design tools which provided inadequate feedback for users learning by trial and error. The most promising way of reducing error may be to make designers more knowledgeable about the types of error accompanying different activities.Item Open Access Multi-objective optimisation of web business processes(2010-12-31T00:00:00Z) Tiwari, Ashutosh; Turner, Christopher J.; Ball, Peter D.; Vergidis, Kostas; Deb, K.; Bhattacharya, A.; Chakroborty, P.; Dutta, J.; Gupta, S. K.; Jain, A.; Aggarwal, V.; Branke, J.; Louis, S. J.; Tan, K. C.This paper proposes an approach for the optimisation of web business processes using multi-objective evolutionary computing. Business process optimisation is considered as the problem of constructing feasible business process designs with optimum attribute values such as duration and cost. This optimisation framework involves the application of a series of Evolutionary Multi-objective Optimisation Algorithms (EMOAs) in an attempt to generate a series of diverse optimised business process designs for given requirements. The optimisation framework is tested to validate the framework's capability in capturing, composing and optimising business process designs constituted of web services. The results from the web business process optimisation scenario, featured in this paper, demonstrate that the framework can identify business process designs with optimised attribute values.Item Open Access Nanocomposites for vehicle structural applications(2011-11-14T00:00:00Z) Njuguna, James A. K.; Silva, Francesco; Sachse, Sophia; Lin, TAdvancements in the nanotechnology industry promise to offer improvements in capabilities across a spectrum of applications. This is of immense strategic importance to the high performance sector which has historically leveraged technological advances. The uses of polymer nanocomposites in structures have several predictable impacts on structural design and applications, primarily by providing a safer, faster, and eventually cheaper transportation in the future. In this chapter, special attention is focused on the reinforcement of key properties of polymer nanocomposites for potential high performance structural applications. Further insight is provided on developments in both theoretical and experimental investigations providing valuable fundamental elements in strength and stiffness, impact resistant and energy absorption performance, thermal properties, age and durability performance and structural health monitoring of polymer nanocomposites for vehicular structural needs. A brief overview of modeling and simulation of nano-reinforced materials is also given reflecting its importance in vehicular structures.