All Outputs (165)

Bio-inspired model for walking assistance (2014)
Presentation / Conference Contribution

The main objective of this work is obtaining a framework able to provide bio-inspired torque assistance to disabled humans during walking. The method is based on a bio-inspired model copying natural dynamics of the leg muscles, and containing top-dow... Read More about Bio-inspired model for walking assistance.

Pre-processing studies for selective laser sintering of glass beads-filled polyamide 12 composites (2014)
Journal Article

The paper provides the background needed on the investigation of mechanical properties and geometric accuracy of glass bead filled polyamide 12 composites. It introduces the topic of determination of material and process parameters, describes the pre... Read More about Pre-processing studies for selective laser sintering of glass beads-filled polyamide 12 composites.

Inverse dynamics modelling of upper-limb tremor, with cross-correlation analysis (2014)
Journal Article

A method to characterise upper-limb tremor using inverse dynamics modelling in combination with cross-correlation analyses is presented. A 15 degree-of-freedom inverse dynamics model is used to estimate the joint torques required to produce the measu... Read More about Inverse dynamics modelling of upper-limb tremor, with cross-correlation analysis.

A new watermarking technique for mammogram images copyright protection (2014)
Journal Article

Recent advances in technology have enabled the digitization of medical images for easy retrieval. However, the retrieval process of digital medical image makes the image prone to illegal distortions and reproduction. In this regards, the confidential... Read More about A new watermarking technique for mammogram images copyright protection.

Direct numerical simulation of a turbulent flow over an axisymmetric hill (2014)
Journal Article

Direct numerical simulation (DNS) of a turbulent flow over an axisymmetric hill has been carried out to study the three-dimensional flow separation and reattachment that occur on the lee-side of the geometry. The flow Reynolds number is Re H=6500, ba... Read More about Direct numerical simulation of a turbulent flow over an axisymmetric hill.

The capability of traditional and modern creep lifing methods to predict long-term creep properties (2014)
Presentation / Conference Contribution

The ability to predict the stress-rupture behaviour of high temperature components is of paramount importance in both power generation and aerospace applications. Historically, the power law-based techniques such as the Larson-Miller, Manson-Haferd a... Read More about The capability of traditional and modern creep lifing methods to predict long-term creep properties.

The people, the people, the people: Engaging under-served audiences (2014)
Presentation / Conference Contribution

“He Tangata, He Tangata, He Tangata” is a Maori proverb emphasising how people are the most important thing in the world. It’s a concept we will explore in this session, serving as a reminder of the central importance of the audience for successful e... Read More about The people, the people, the people: Engaging under-served audiences.

Model-driven analysis and design for software development of autonomous underwater vehicles (2014)
Journal Article

Software engineering plays a key role in state-of-the-art robotics where more effective and efficient software development solutions are needed for implementation and integration of advanced robotics capabilities. Component-based software engineering... Read More about Model-driven analysis and design for software development of autonomous underwater vehicles.

A critical analysis of the conventionally employed creep lifing methods (2014)
Journal Article

The deformation of structural alloys presents problems for power plants and aerospace applications due to the demand for elevated temperatures for higher efficiencies and reductions in greenhouse gas emissions. The materials used in such applications... Read More about A critical analysis of the conventionally employed creep lifing methods.

White space radio: Towards an active database-centred topology (2014)
Presentation / Conference Contribution

The following paper presents and discusses the state of the art in White Space radio topologies. A possible system architecture combining database stations and active sensing is also presented. Some of the main challenges associated with such archite... Read More about White space radio: Towards an active database-centred topology.

A bi-dimensional empirical mode decomposition based watermarking scheme (2014)
Journal Article

An invisible robust, non blind watermarking scheme for digital images is presented. The proposed algorithm combines the Discrete Wavelet Transform (DWT) and the Bi-dimensional Empirical Mode Decomposition (BEMD). Unlike previous works where the wat... Read More about A bi-dimensional empirical mode decomposition based watermarking scheme.

Paper type classification based on a new 3D surface texture measure (2014)
Journal Article

A novel three-dimensional (3D) surface texture measure (3DSTM) is presented based on the micro-geometry of paper surfaces to classify different paper substrates. This is useful to automatically determine whether a document is printed on the correct p... Read More about Paper type classification based on a new 3D surface texture measure.

Global buckling of composite plates containing rectangular delaminations using exact stiffness analysis and smearing method (2014)
Journal Article

The global buckling of a composite plate with a single rectangular delamination is studied using a smearing method and employing exact stiffness analysis and the Wittrick-Williams algorithm. Computational efficiency is achieved by avoiding discretisa... Read More about Global buckling of composite plates containing rectangular delaminations using exact stiffness analysis and smearing method.

Singing in unison: The neuroscience, art and therapy of music (2014)
Presentation / Conference Contribution

Imagine a world where you can’t speak. It’s that tip of the tongue moment which frustrates us all, but is an everyday reality for people with aphasia. This language disorder results from brain damage like stroke, when the brain area responsible for o... Read More about Singing in unison: The neuroscience, art and therapy of music.

Dynamic soaring mechanisms in the ocean boundary layer (2014)
Presentation / Conference Contribution

Dynamic Soaring is a flying technique which extracts energy from an environment where wind gradients form, such as the air-sea interface above oceans that sees such gradients forming through multiple and combined phenomena. Models of wind-wave intera... Read More about Dynamic soaring mechanisms in the ocean boundary layer.

A method of ‘speed coefficients’ for biochemical model reduction applied to the NF-κB system (2014)
Journal Article

© 2014, The Author(s). The relationship between components of biochemical network and the resulting dynamics of the overall system is a key focus of computational biology. However, as these networks and resulting mathematical models are inherently co... Read More about A method of ‘speed coefficients’ for biochemical model reduction applied to the NF-κB system.

A model for creep and creep damage in the γ-titanium aluminide Ti-45Al-2Mn-2Nb (2014)
Journal Article

Gamma titanium aluminides (γ-TiAl) display significantly improved high temperature mechanical properties over conventional titanium alloys. Due to their low densities, these alloys are increasingly becoming strong candidates to replace nickel-base su... Read More about A model for creep and creep damage in the γ-titanium aluminide Ti-45Al-2Mn-2Nb.

H<inf>∞</inf> observer design for uncertain nonlinear discrete-time systems with time-delay: LMI optimization approach (2014)
Journal Article

Copyright © 2014 John Wiley & Sons, Ltd. We present a robust H∞ observer for a class of nonlinear discrete-time systems. The class under study includes an unknown time-varying delay limited by upper and lower bounds, as well as time-varying paramet... Read More about H<inf>∞</inf> observer design for uncertain nonlinear discrete-time systems with time-delay: LMI optimization approach.

Scheduling flow shop manufacturing systems considering agility issues (2014)
Journal Article

Agile manufacturing is concerned with responding quickly to customer needs and market changes while still controlling costs and quality. Although several studies have been conducted in agile manufacturing, the scheduling of agile systems still needs... Read More about Scheduling flow shop manufacturing systems considering agility issues.

Production lot sizing and scheduling with non-triangular sequence-dependent setup times (2014)
Journal Article

This paper considers a production lot sizing and scheduling problem with sequence-dependent setup times that are not triangular. Consider, for example, a product that contaminates some other product unless either a decontamination occurs as part of a... Read More about Production lot sizing and scheduling with non-triangular sequence-dependent setup times.