Browsing College of Engineering, Mathematics and Physical Sciences by Type "Article"
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An acoustic double fishnet using Helmholtz resonators
(Acoustical Society of America, 2014)The acoustic transmission of a closely spaced pair of patterned and perforated rigid plates is explored in air. The structure resembles an acoustic double fishnet design, with each plate modified such that the gap between ... 
Acoustic transmission through compound subwavelength slit arrays
(American Physical Society, 2016)The angular dependence of the transmission of sound in air through four types of 2D slitarrays formed of aluminium slats is explored, both experimentally and numerically. For a simple, subwavelength periodic slitarray, ... 
Acoustoelectric Current in Graphene Nanoribbons
(Springer Nature, 20170511)Surface acoustic waves (SAWs) propagating on piezoelectric substrates offer a convenient, contactless approach to probing the electronic properties of lowdimensional charge carrier systems such as graphene nanoribbons ... 
Acoustoelectric photoresponse in graphene
(AIP Publishing, 20150330)The acoustoelectric current in graphene has been investigated as a function of illumination, using blue (450nm) and red (735nm) lightemitting diodes (LEDs), and surface acoustic wave (SAW) intensity and frequency. The ... 
Acoustoelectric photoresponse of graphene nanoribbons
(IOP Publishing, 20180418)The acoustoelectric current in graphene nanoribbons, with widths ranging between 350 nm and 600 nm, has been investigated as a function of illumination. For all nanoribbon widths, the acoustoelectric current was observed ... 
Active absorption of electromagnetic pulses in a cavity
(IOP Publishing, 20150528)We show that a pulse of electromagnetic radiation launched into a cavity can be completely absorbed into an infinitesimal region of space, provided one has a high degree of control over the current flowing through this ... 
Active diffusion and microtubulebased transport oppose myosin forces to position organelles in cells.
(Nature Publishing Group, 20160602)Even distribution of peroxisomes (POs) and lipid droplets (LDs) is critical to their role in lipid and reactive oxygen species homeostasis. How even distribution is achieved remains elusive, but diffusive motion and directed ... 
Activity and magnetic field structure of the Sunlike planethosting star HD 1237
(EDP Sciences, 20151001)We analyse the magnetic activity characteristics of the planethosting Sunlike star, HD 1237, using HARPS spectropolarimetric timeseries data. We find evidence of rotational modulation of the magnetic longitudinal field ... 
An adaptable parallel algorithm for the direct numerical simulation of incompressible turbulent flows using a Fourier spectral/ hp element method and MPI virtual topologies
(Elsevier, 201609)A hybrid parallelisation technique for distributed memory systems is investigated for a coupled Fourierspectral/hp element discretisation of domains characterised by geometric homogeneity in one or more directions. The ... 
Adaptation of fwave finite volume methods to the twolayer shallowwater equations in a moving vessel with a rigidlid
(Elsevier, 20160401)A numerical method is proposed to solve the twolayer inviscid, incompressible and immiscible 1D shallowwater equations in a moving vessel with a rigidlid with different boundary conditions based on the highresolution ... 
Adaptive anchoring model: how static and dynamic presentation of time series influence judgments and predictions
(Wiley, 20160406)When attempting to predict future events, people commonly rely on historical data. One psychological characteristic of judgmental forecasting of time series, established by research, is that when people make forecasts ... 
Adaptive continuous higher order sliding mode control
(Elsevier, 20151106)This paper is concerned with the development of an adaptation structure which can be applied to conventional, supertwisting and higherorder sliding mode schemes. The objective is to alter the modulation gains associated ... 
Adaptive Dual Layer SuperTwisting Control and Observation
(Taylor & Francis, 20160427)In this paper a supertwistinglike structure with adaptive gains is proposed. The structure is parameterized by two scalar gains, both of which adapt, and by an additional timevarying term. The magnitudes of the adaptive ... 
Adaptive flood risk management under climate change uncertainty using real options and optimization
(Wiley for ociety for Risk Analysis, 20130708)It is well recognized that adaptive and flexible flood risk strategies are required to account for future uncertainties. Development of such strategies is, however, a challenge. Climate change alone is a significant ... 
Adaptive Locally Constrained Genetic Algorithm For LeastCost Water Distribution Network Design
(IWA Publishing, 2014)This paper describes the development of an adaptive locally constrained genetic algorithm (ALCOGA) and its application to the problem of least cost water distribution network design. Genetic algorithms have been used ... 
Adaptive Maximum Power Point Finding Using Direct VOC/2 Tracking Method with Microwatt Power Consumption for Energy Harvesting
(Institute of Electrical and Electronics Engineers (IEEE), 20171115)Maximum power transfer occurs in many energy harvesters at their half opencircuit voltage (VOC/2). A novel implementation method of maximum power point finding based on the VOC/2 method is presented by exploiting the ... 
An adaptive nonraster scanning method in atomic force microscopy for simple sample shapes
(IOP Publishing, 20150216)It is a significant challenge to reduce the scanning time in atomic force microscopy while retaining imaging quality. In this paper, a novel nonraster scanning method for highspeed imaging is presented. The method proposed ... 
Adaptive repetitive control with feedforward scheme for gridconnected inverters
(Institution of Engineering and Technology, 20150801)This study is concerned with control of grid connected inverters using oddharmonic repetitive scheme. Owing to the inherent long convergence period of repetitive control, a feedforward loop of the fundamental component ... 
An adaptive sliding mode differentiator for actuator oscillatory failure case reconstruction
(Elsevier, 2013)This paper proposes an adaptive sliding mode supertwisting differentiator which allows the gains to adapt based on the ‘quality’ of the sliding motion. A Lyapunov based analysis for the adaptive supertwisting scheme is ... 
Adaptive sliding mode observation in a network of dynamical systems
(Wiley Interscience, 20151226)This paper considers the problem of reconstructing state information in all the nodes of a complex network of dynamical systems. The individual nodes comprise a known linear part and unknown but bounded uncertainties in ...