Experimental validation of a model for prediction of dynamic ice-structure interaction

Vertically sided offshore structures subjected to level ice are designed to withstand the effects of ice-induced vibrations. Such structures are, for example, offshore wind turbines on monopile foundations, multi-legged oil- and gas platforms or lighthouses. For the prediction of dynamic interaction between ice and structures, several...

Modelling residential segregation as unevenness and clustering: A multilevel modelling approach incorporating spatial dependence and tackling the MAUP

Traditional studies of residential segregation use a descriptive index approach with predefined spatial units to report the degree of neighbourhood differentiation. We develop a model-based approach which explicitly includes spatial effects at multiple scales, recognising the complexity of the urban environment while simultaneously...

A concept for multi-criteria environmental assessment of aircraft trajectories

Comprehensive assessment of the environmental aspects of flight movements is of increasing interest to the aviation sector as a potential input for developing sustainable aviation strategies that consider climate impact, air quality and noise issues simultaneously. However, comprehensive assessments of all three environmental aspects do not yet...

Laser-driven resonance of dye-doped oil-coated microbubbles: Experimental study

Photoacoustic (PA) imaging offers several attractive features as a biomedical imaging modality, including excellent spatial resolution and functional information such as tissue oxygenation. A key limitation, however, is the contrast to noise ratio that can be obtained from tissue depths greater than 1-2 mm. Microbubbles coated with an...

Ethnic Residential Segregation: A Multilevel, Multigroup, Multiscale Approach Exemplified by London in 2011

We develop and apply a multilevel modeling approach that is simultaneously capable of assessing multigroup and multiscale segregation in the presence of substantial stochastic variation that accompanies ethnicity rates based on small absolute counts. Bayesian MCMC estimation of a log-normal Poisson model allows the calculation of the variance...

Macro-, Meso- and Microscale Segregation: Modeling Changing Ethnic Residential Patterns in Auckland, New Zealand, 2001–2013

“David Manley's contribution was partially supported by funding from the European Research Council under the European Union's Seventy Framework Programme (FP/2007–2013)/ERC Grant Agreement n.615159 (ERC Consolidator Grant “DEPRIVEDHOODS, Socio-spatial inequality, deprived neighbourhoods, and neighbourhood effects.)” Most world cities can now be...

Dagger-board evaluation for an IMOCA 60 Yacht

Design and analysis of slender marine structures – Risers and pipelines

Model tests and analysis of flexible riser systems

Non-Line dynamics of flexible risers by the finite element method

The Pratt Project hull measuring devoce: Data analysis procedure

Instructions for the field use of the Pratt project hull measuring device

Low-speed wind-tunnel measurements of oscillatory rolling derivates on a sharp-edged slender wing: effects of frequency parameter and of ground

A sharp-edged wing of gothic planform and aspect ratio 0.75 was oscillated in roll about the wing axis of symmetry, and the oscillatory rolling derivatives determined over a very wide range of frequency parameter. If the frequency parameter is increased until the wavelength of the rolling oscillation is comparable with the wing chord, there is a...

Preliminary low speed measurements of skin-friction and surface pressure-fluctuations on a slender wing at incidence

The distribution of skin-friction over the upper surface of a slender sharp-edged delta wing at incidence has been measured using surface pitot-tubes. Beneath the leading-edge vortex, the surface shear-stress reaches a peak value about twice the levels observed in the regions inboard of the main vortex and outboard of the secondary separation....

Tank tests on a hydrofoil boat with incidence control (Hydrofin)