All Outputs (653)

UK climate change risk assessment: Evidence report (2012)
Report

The UK Climate Change Risk Assessment (CCRA) Evidence Report was published by the Government on 25 January 2012. It was the first ever UK Climate Change Risk Assessment (CCRA1), which are published on a 5-yealry cycle, a requirement of the 2008 Clima... Read More about UK climate change risk assessment: Evidence report.

The effect of shot peening on fatigue life of welded tubular joint in offshore structure (2011)
Journal Article

An offshore structure is exposed to environmental loading and cyclic stress variations throughout its life. This would result in the possibility of fatigue cracking in its members. Cracks in these structures usually initiate around welded areas, then... Read More about The effect of shot peening on fatigue life of welded tubular joint in offshore structure.

Analysis of drop call probability in well established cellular networks in Asaba, Delta State, Nigeria. (2011)
Presentation / Conference Contribution

Technology in Africa has increased over the past decade, The increase in modern cellular networks requires stringent quality of service (QoS). Drop call probability is one of the most important indices of QoS evaluation in a large-scale, well-establi... Read More about Analysis of drop call probability in well established cellular networks in Asaba, Delta State, Nigeria..

Using formal methods to model hybrid manufacturing processes (2011)
Presentation / Conference Contribution

The on-going industrial trend towards high value sustainable manufacturing has led to the emergence of hybrid manufacturing processes and resources. This new generation of processes and resources combine the capabilities of a number of older technolo... Read More about Using formal methods to model hybrid manufacturing processes.

The effect of plasticity on the ability of the deep hole drilling technique to measure axisymmetric residual stress (2011)
Journal Article

Mechanical strain relief covers a class of techniques for measuring residual stress in engineering components. These techniques work by measuring strains or displacements when part of the component is machined away. The assumption is that such strain... Read More about The effect of plasticity on the ability of the deep hole drilling technique to measure axisymmetric residual stress.

Multi-objective optimisation of cell-array circuit evolution (2011)
Presentation / Conference Contribution

In this paper we have investigated the efficacy of applying multi-objective optimisation to Cartesian genetic programming (CGP) when used for evolution of cell-array configurations. A cell-array is a proposed type of custom FPGA, where digital circui... Read More about Multi-objective optimisation of cell-array circuit evolution.

An application of chaboche model to predict uniaxial and multiaxial ratcheting (2011)
Journal Article

Chaboche model can be used to predict the ratcheting phenomenon. The parameter determination of this model to achieve an accurate ratcheting prediction is of great importance. Therefore, the application of an optimization procedure can improve the pr... Read More about An application of chaboche model to predict uniaxial and multiaxial ratcheting.

A neural networks approach to characterize material properties using the spherical indentation test (2011)
Journal Article

Determination of material characteristics using the instrumented indentation test has gained interests among many researchers. The output of a spherical indentation test is usually the load-penetration (P-h) curve. To achieve this goal, the elastic d... Read More about A neural networks approach to characterize material properties using the spherical indentation test.

Proton exchange membrane fuel cell voltage-tracking using artificial neural networks (2011)
Journal Article

Transients in load and consequently in stack current have a significant impact on the performance and durability of fuel cells. The delays in auxiliary equipments in fuel cell systems (such as pumps and heaters) and back pressures degrade system perf... Read More about Proton exchange membrane fuel cell voltage-tracking using artificial neural networks.

J-integral and CMOD for external inclined cracks on autofrettaged cylinders (2011)
Journal Article

Autofrettage is a well-known method to increase the load carrying capacity of the pressure vessels. The autofrettage outcomes can be contrary when the imperfections or material discontinuities are on the outer surface. In this study, the influences o... Read More about J-integral and CMOD for external inclined cracks on autofrettaged cylinders.

Minimum sample size determination for generalized extreme value distribution (2010)
Journal Article

Sample size determination is an important issue in statistical analysis. Obviously, the larger the sample size is, the better the statistical results we have. However, in many areas such as coastal engineering and environmental sciences, it can be ve... Read More about Minimum sample size determination for generalized extreme value distribution.

Effect of gauge volume on the residual stress measurement using deep hole drilling technique (2010)
Presentation / Conference Contribution

Accurate evaluation of residual stress is essential if is to be taken into account in structural integrity assessments. For thick components, many non-destructive residual stress measurement techniques cannot be used since they are unable to measure... Read More about Effect of gauge volume on the residual stress measurement using deep hole drilling technique.

Parameter determination of chaboche kinematic hardening model using a multi objective genetic algorithm (2010)
Journal Article

Chaboche model is a powerful tool to evaluate the cyclic behavior under different loading conditions using kinematic hardening theory. It can also predict the ratcheting phenomenon. To predict the ratcheting, it is required to determine the material... Read More about Parameter determination of chaboche kinematic hardening model using a multi objective genetic algorithm.

Application of deep hole drilling to the measurement and analysis of residual stresses in steel shrink‐fitted assemblies (2010)
Journal Article

Residual stress measurement of shrink-fitted assemblies was achieved through finite element simulations and experiments using the deep hole drilling technique. Shrink-fitted assemblies using stainless steel and cast iron were manufactured and residu... Read More about Application of deep hole drilling to the measurement and analysis of residual stresses in steel shrink‐fitted assemblies.

Application of the modified deep hole drilling technique (iDHD) for measuring near yield non-axisymmetric residual stresses (2010)
Presentation / Conference Contribution

The modified deep hole drilling technique (iDHD) has been developed to allow near yield residual stresses to be measured and has been validated for axisymmetric residual stress fields. In the present investigation, the application of the iDHD techniq... Read More about Application of the modified deep hole drilling technique (iDHD) for measuring near yield non-axisymmetric residual stresses.

PEM fuel cell voltage-tracking using artificial neural network (2010)
Presentation / Conference Contribution

Transients in load and consequently in stack current have a significant impact on the performance and durability of fuel cell. The delay exciting in auxiliary equipments in fuel cell system such as pumps, heaters, back pressures will degrade system p... Read More about PEM fuel cell voltage-tracking using artificial neural network.

Current stabilization in fuel cell/battery hybrid system using fuzzy-based controller (2010)
Presentation / Conference Contribution

In recent years, fuel cells are emerging as main power sources for most applications. These sources have slow dynamic response and should be protected against current impulses. These transients will be harmful to the membrane electrode assembly (MEA)... Read More about Current stabilization in fuel cell/battery hybrid system using fuzzy-based controller.

Conversational gestures in human-robot interaction (2009)
Presentation / Conference Contribution

The human sciences have demonstrated that gesture is a critical element of human communication. While existing graphical solutions are appropriate for virtual agents, solving arm trajectories for physically embodied robots requires that we consider t... Read More about Conversational gestures in human-robot interaction.

Experiments and predictions of the effects of load history on cleavage fracture in steel (2009)
Journal Article

A series of experiments conducted on two steels, A533B and A508, are summarised. Tests were conducted to explore the influence of different room temperature pre-loading cycles on subsequent low temperature (−150 °C and −170 °C) cleavage fracture. In... Read More about Experiments and predictions of the effects of load history on cleavage fracture in steel.

Beat gesture generation rules for human-robot interaction (2009)
Presentation / Conference Contribution

In order for anthropomorphic robots to communicate with people in a human-like way they need to produce gestures along with speech. Beat gestures are a key category of gestures, accompanying emphasis and timing of talk. The standard approach for auto... Read More about Beat gesture generation rules for human-robot interaction.