All Outputs (1440)

Transforming tradition: how the iconic Christmas Lectures series is perceived by its audiences (2021)
Journal Article

The Royal Institution Christmas Lectures are a landmark in the history of science communication. With today’s changing media landscape, it is important to know who is currently watching, how they are watching, and how they are perceiving the content.... Read More about Transforming tradition: how the iconic Christmas Lectures series is perceived by its audiences.

Design, novel quality check and experimental test of an original variable length stepped scarf repair scheme (2021)
Journal Article

The performance of well-established stepped scarf repair schemes for highly loaded composite structures has been studied in previous works. However, none of the proposed repair schemes appear to minimise healthy material removal. Thus, this paper pro... Read More about Design, novel quality check and experimental test of an original variable length stepped scarf repair scheme.

Disturbance-observer-based u-control (Dobuc) for nonlinear dynamic systems (2021)
Journal Article

U-model, which is a control-oriented model set with the property of generally facilitate nonlinearity dynamic inversion/cancellation, has been introduced to the Disturbance Observer-Based control (DOBC) methods to improve the performance of the nonli... Read More about Disturbance-observer-based u-control (Dobuc) for nonlinear dynamic systems.

Multi-direction gradient iterative algorithm: A unified framework for gradient iterative and least squares algorithms (2021)
Journal Article

In this study, a multi-direction-based gradient iterative (GI) algorithm for Hammerstein systems with irregular sampling data is proposed. The algorithm updates the parameter estimates using several orthogonal directions at each iteration. The conver... Read More about Multi-direction gradient iterative algorithm: A unified framework for gradient iterative and least squares algorithms.

Adaptive sliding mode control based on fuzzy systems applied to the permanent magnet synchronous machine (2021)
Journal Article

This paper develops an adaptive sliding mode control based on fuzzy systems. In this control technique, the possibilities offered by Sugeno type fuzzy systems, in terms of their ability to approximate continuous nonlinear functions, are exploited, an... Read More about Adaptive sliding mode control based on fuzzy systems applied to the permanent magnet synchronous machine.

Fabrication and mechanical properties of biomimetic nacre-like ceramic/polymer composites for chairside CAD/CAM dental restorations (2021)
Journal Article

Objective: To fabricate and characterise a novel chairside CAD/CAM composite dental materials. These composites have a nacre-like anisotropic microstructure, consisting of highly aligned ceramic scaffolds infiltrated with polymer. Method: Bi-directio... Read More about Fabrication and mechanical properties of biomimetic nacre-like ceramic/polymer composites for chairside CAD/CAM dental restorations.

Geographic information-driven two-stage optimization model for location decision of solar power plant: A case study of an Algerian municipality (2021)
Journal Article

This paper presents an interdisciplinary framework for optimal mapping and integration of solar photovoltaic based DG systems. In a two-stage process, the proposed framework combines both spatial and technical-economic analysis, and uses efficient op... Read More about Geographic information-driven two-stage optimization model for location decision of solar power plant: A case study of an Algerian municipality.

Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios (2021)
Journal Article

Optimisation of Gurney flap (GF) geometries mounted on a three-straight-bladed vertical axis wind turbine (VAWT) is evaluated with computational fluid dynamics (CFD) solution and Taguchi method, considering the blade rotating effect at three tip spee... Read More about Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios.

Complete model-free sliding mode control (CMFSMC) (2021)
Journal Article

This study presents a complete model-free sliding mode control (CMFSMC) framework for the control of continuous-time non-affine nonlinear dynamic systems with unknown models. The novelty lies in the introduction of two equalities to assign the deriva... Read More about Complete model-free sliding mode control (CMFSMC).

U-model-based double sliding mode control (UDSM-control) of nonlinear dynamic systems (2021)
Journal Article

This study proposes a double sliding mode control-augmented U-control ((Formula presented.) -control) method for a class of single-input single-output nonlinear systems with internal uncertain parameters, model mismatching and external system noise/d... Read More about U-model-based double sliding mode control (UDSM-control) of nonlinear dynamic systems.

Precision fibre angle inspection for carbon fibre composite structures using polarisation vision (2021)
Journal Article

This paper evaluates the precision of polarisation imaging technology for the inspection of carbon fibre composite components. Specifically, it assesses the feasibility of the technology for fibre orientation measurements based on the premise that li... Read More about Precision fibre angle inspection for carbon fibre composite structures using polarisation vision.

Finite element-based optimisation of an elastomeric honeycomb for impact mitigation in helmet liners (2021)
Journal Article

Finite element simulation was used to analyse the response of an elastomeric pre-buckled honeycomb structure under impact loading, to establish its suitability for use in helmet liners. A finite element-based optimisation was performed using a search... Read More about Finite element-based optimisation of an elastomeric honeycomb for impact mitigation in helmet liners.

Identification and U-control of a state-space system with time-delay (2021)
Journal Article

This article presents a state-space model with time-delay to map the relationship between known input-output data for discrete systems. For the given input-output data, a model identification algorithm combining parameter estimation and state estimat... Read More about Identification and U-control of a state-space system with time-delay.

A new perspective on robot ethics through investigating human–robot interactions with older adults (2021)
Journal Article

This work explored the use of human–robot interaction research to investigate robot ethics. A longitudinal human–robot interaction study was conducted with self-reported healthy older adults to determine whether expression of artificial emotions by a... Read More about A new perspective on robot ethics through investigating human–robot interactions with older adults.

Iterative learning-based robotic controller with prescribed human-robot interaction force (2021)
Journal Article

In this article, an iterative-learning-based robotic controller is developed, which aims at providing a prescribed assistance or resistance force to the human user. In the proposed controller, the characteristic parameter of the human upper limb move... Read More about Iterative learning-based robotic controller with prescribed human-robot interaction force.

Detection of barely visible impact damage in polymeric laminated composites using a biomimetic tactile whisker (2021)
Journal Article

This is a novel investigation on the possibility of detecting barely visible impact damage (BVID) in composite materials by whisking across the surface via tactile whisker sensors that resemble rats' whiskers. A series of drop tower low-velocity impa... Read More about Detection of barely visible impact damage in polymeric laminated composites using a biomimetic tactile whisker.

Initial R-curves for translaminar fracture of quasi-isotropic carbon/epoxy laminates from specimens with increasing size (2021)
Journal Article

In this paper, a set of initial R-curves were measured for three different in-plane sizes using scaled Over-height Compact Tension (OCT) specimens and two different stacking sequences. The data reduction scheme was based on a Virtual Crack Closure Te... Read More about Initial R-curves for translaminar fracture of quasi-isotropic carbon/epoxy laminates from specimens with increasing size.

A rationalised CFD design methodology for Turgo turbines to enable local manufacture in the Global South (2021)
Journal Article

In the Global South, pico-and micro-hydropower turbines are often made by local work-shops. Despite several advantageous features, e.g., a high power density and capacity to handle silt, there is no commonly available Turgo turbine design appropriate... Read More about A rationalised CFD design methodology for Turgo turbines to enable local manufacture in the Global South.

Microbial fuel cells in the house: A study on real household wastewater samples for treatment and power (2021)
Journal Article

In line with the global movement towards sustainable buildings and dwellings, this work investigated the potential for integrating microbial fuel cell technology into future architecture. Various types of domestic greywater and wastewater from five d... Read More about Microbial fuel cells in the house: A study on real household wastewater samples for treatment and power.

A unified parametric representation for robotic compliant skills with adaptation of impedance and force (2021)
Journal Article

Robotic compliant manipulation is a very challenging but urgent research spot in the domain of robotics. One difficulty lies in the lack of a unified representation for encoding and learning of compliant profiles. This article aims to introduce a nov... Read More about A unified parametric representation for robotic compliant skills with adaptation of impedance and force.