We devise hybrid high-order (HHO) methods for the acoustic wave equation in time domain. first consider second-order formulation time. Using Newmark scheme temporal discretization, we show that resulting HHO-Newmark is energy-conservative, and this also amenable to static condensation at each step. then of as a first-order system together with singly-diagonally implicit explicit Runge-Kutta (SD...

This work aims at simulating the time response of a structure damped by viscoelastic materials. The structure is discretised by finite elements and a 4-parameter fractional derivative model is used to describe the frequency-dependency of the mechanical properties of the viscoelastic material. The proposed approach combines a classical Newmark time-integration scheme to solve the semi-discretise...

This paper presents nonlinear elastic dynamic analysis of 3-D semi-rigid steel frames including geometric and connection nonlinearities. The geometric nonlinearity is considered by using stability functions and updating geometric stiffness matrix. The nonlinear behavior of the steel beam-to-column connection is considered by using a zero-length independent connection element comprising of six t...

In this paper a new interactionistic model of mental causation is developed. By analysing the results of physics and neuroscience it is shown that the macroscopic cerebral activity and the resulting behavioural output is not strictly determined. This opens up the possibility that a non-physical mind can influence which of the physically allowed brain states is realised. Most models of mental ca...

Peter Bannister was born in England, completed a B.Sc. in botany at Nottingham University and a Ph.D. at the University of Aberdeen, on the water relations of heath plants. This combination of ecology and physiology was somewhat novel at the time, and taught him to tread carefully along the narrow line between supervisors in opposing camps. Research on the water relations, resistance to drought...

Photograph published with kind permission of the family of Peter Wason.

The topic of magnetic resonance imaging (MRI) started for us at Nottingham in the early summer of 1972. During a discussion with one of my graduate students, Peter Grannell and my post-doc Dr Allan Garroway, concerning multiple-pulse line narrowing experiments in solids, the idea occurred to me to use the line narrowing technique as a means of effectively removing dipolar interactions in a mate...

The Peter Landin prize honours the best paper presented at each year’s International Symposium on the Implementation and Application of Functional Languages (IFL). It has been awarded every year since 2003, and covers a range of topics including functional operating systems, static analysis for cost information of functional programs, techniques to improve array processing for data locality and...