NREL Airborne Wind Energy Workshop and Technical Report 2021

The Boomerang Sampler

This paper introduces the boomerang sampler as a novel class of continuous-time non-reversible Markov chain Monte Carlo algorithms. The methodology begins by representing the target density as a density, e(−U), with respect to a prescribed (usually) Gaussian measure and constructs a continuous trajectory consisting of a piecewise circular path....

Open Statistical Data: Potential and Challenges

Opening up data is a political priority worldwide. Linked open data is considered as the most mature technology for publishing and reusing open data. A large number of open data is numerical and actually concerns statistics. In the literature, statistical data have been heavily studied using the data cube model. Recently, ICT tools have emerged...

Quad-Rotorcraft to Harness high Altitude Wind Energy

An engineering development of a novel hexrotor vehicle for 3D applications

This paper is about the development of a novel type of non coplanar hex rotor with the ability to decouple translational and attitude dynamics. The proposed design features six variable pitch rotors arranged in three different rotor planes in order to point the thrust and torque vectors independently of body attitude. It is envisaged that this...

Influence of centrebow on motions and loads of high-speed catamaran

Modes of vibration of high speed ship hull sections

Maximizing efficiency and minimizing cost in high speed craft

The Maltese Falcon: the realization

The use of fibre optic strain monitoring systems in the design, testing and performance monitoring of the novel freestanding dynarigs on a 87m super yacht by Perini Navi, Design Gerard Dijkstra

Comparison of small salt-cored diapirs (Northern Gulf of Mexico slope) with green knoll beyond the sigsbee escarpment: Variability in surface expression and seismic character

Acoustic surveying of ultra-shallow water bottoms (<2.0m) for both engineering, and environmental applications

Fatigue and damage tolerance design philosophies: An aerospace perspective with applications to high-speed marine vessels

Carbon spars for super yachts and smart mast technology