Andrew Higgins
YOU?
Author Swipe
View article: Cavitation onset in an impulsively accelerated liquid column
Cavitation onset in an impulsively accelerated liquid column Open
This paper introduces a novel piston-driven apparatus to study the onset of cavitation in an impulsively accelerated liquid column as it compresses a closed gas volume. The experiment is monitored using high-speed videography and piezoelec…
View article: Characteristics and Outcomes of Patients With Valvular Cardiogenic Shock
Characteristics and Outcomes of Patients With Valvular Cardiogenic Shock Open
VCS is associated with poor short and long outcomes. Native valvular dysfunction and aortic valve involvement account for the majority of patients with VCS. Definitive surgical therapy and expanding the role of percutaneous therapies may b…
View article: Asymmetry of imploding detonations in thin channels
Asymmetry of imploding detonations in thin channels Open
View article: Magneto-Rayleigh-Taylor instability and feedthrough in a resistive liquid-metal liner of a finite thickness
Magneto-Rayleigh-Taylor instability and feedthrough in a resistive liquid-metal liner of a finite thickness Open
The effect of magnetic tension and diffusion on the perturbation growth of a liquid-metal liner subjected to the magneto-Rayleigh-Taylor (MRT) instability is investigated. An initially magnetic-field-free liquid-metal slab of finite thickn…
View article: A Level Set-Based Solver for Two-Phase Incompressible Flows: Extension to Magnetic Fluids
A Level Set-Based Solver for Two-Phase Incompressible Flows: Extension to Magnetic Fluids Open
Development of a two-phase incompressible solver for magnetic flows in the magnetostatic case is presented. The proposed numerical toolkit couples the Navier-Stokes equations of hydrodynamics with Maxwell's equations of electromagnetism to…
View article: Dynamic soaring as a means to exceed the solar wind speed
Dynamic soaring as a means to exceed the solar wind speed Open
A technique by which a spacecraft can interact with flows of ionized gas in space (the solar wind or interstellar medium) in order to be accelerated to velocities greater than the flow velocity is explored. Inspired by the dynamic soaring …
View article: Koju cijenu smo spremni platiti za san o jednakoj pravdi?
Koju cijenu smo spremni platiti za san o jednakoj pravdi? Open
Nepravde iskovane nejednakim pristupom pravnom sistemu predstavljaju direktnu prijetnju vladavini prava, ipak, takve nepravde su široko rasprostranjene u Engleskoj i drugdje. Advokati redovno kritikuju vlade zbog nedostatka sredstava za pr…
View article: Structural stability of a lightsail for laser-driven interstellar flight
Structural stability of a lightsail for laser-driven interstellar flight Open
View article: Profound facial bleeding after buccal mucosa graft harvest – A rare case of facial artery pseudoaneurysm
Profound facial bleeding after buccal mucosa graft harvest – A rare case of facial artery pseudoaneurysm Open
View article: An Explosively Driven Launcher Capable of 10 km/s Projectile Velocities
An Explosively Driven Launcher Capable of 10 km/s Projectile Velocities Open
Launching large (> 1 g) well-characterized projectiles to velocities beyond 10 km/s is of interest for a number of scientific fields but is beyond the reach of current hypervelocity launcher technology. This paper reports the development o…
View article: Wind–pellet shear sailing
Wind–pellet shear sailing Open
View article: Wind–pellet shear sailing
Wind–pellet shear sailing Open
View article: Design of a rapid transit to Mars mission using laser-thermal propulsion
Design of a rapid transit to Mars mission using laser-thermal propulsion Open
The application of directed energy to spacecraft mission design is explored using rapid transit to Mars as the design objective. An Earth-based laser array of unprecedented size (10-m diameter) and power (100 MW) is assumed to be enabled b…
View article: Enhancing Farmer Linkages to Markets in Developing Countries Through Mapping of Supply Chains and Optimising Transport
Enhancing Farmer Linkages to Markets in Developing Countries Through Mapping of Supply Chains and Optimising Transport Open
View article: Design of a rapid transit to Mars mission using laser-thermal propulsion
Design of a rapid transit to Mars mission using laser-thermal propulsion Open
View article: Effect of spatial distribution of mesoscale heterogeneities on the shock-to-detonation transition in liquid nitromethane
Effect of spatial distribution of mesoscale heterogeneities on the shock-to-detonation transition in liquid nitromethane Open
The sensitizing effect of cavities in the form of microbubbles on the shock initiation of a homogeneous liquid explosive is studied computationally. While the presence of voids in an explosive has long been known to induce so-called hot sp…
View article: Percolating Reaction–Diffusion Waves (PERWAVES)—Sounding rocket combustion experiments
Percolating Reaction–Diffusion Waves (PERWAVES)—Sounding rocket combustion experiments Open
View article: Ejecta from liquid gallium during planar impact experiments
Ejecta from liquid gallium during planar impact experiments Open
When a solid or liquid metal surface is subject to shock loading, ejecta may be produced by two separate phenomena: growth of surface asperities from Richtmyer-Meshkov instability (RMI); and cavitation (micro-spall) at the surface from sho…
View article: Correction of flyer velocimetry traces for experiments with large Taylor angles
Correction of flyer velocimetry traces for experiments with large Taylor angles Open
When confining metal is accelerated by a grazing detonation it launches outwards at an angle relative to its initial orientation. Consequently, the metal velocity vector contains both lateral and longitudinal components. Since photonic Dop…
View article: Reaction initiation of metal spheres upon ballistic impact with an anvil
Reaction initiation of metal spheres upon ballistic impact with an anvil Open
When a metallic projectile impacts an anvil at high speed, fragmentation of the projectile and ignition of the fragments may occur. In the present experimental study, small metallic spheres and cylinders are accelerated up to speeds of 1.2…
View article: Computational investigation of preshock desensitization of liquid nitromethane with air-filled cavities
Computational investigation of preshock desensitization of liquid nitromethane with air-filled cavities Open
In order to determine the dominant mechanism underlying the effect of preshock desensitization in heterogeneous explosives, two-dimensional, meso-resolved simulations are performed to capture the dynamics of double-shock initiation in mixt…
View article: Rotational stabilisation of the Rayleigh-Taylor instability
Rotational stabilisation of the Rayleigh-Taylor instability Open
A number of applications utilise the energy focussing potential of imploding shells to dynamically compress matter or magnetic fields, including magnetised target fusion schemes. This paper examines the effect of fluid rotation on the Rayl…
View article: Timing Delay Analysis of the Auxiliary Pump Technique to Improve the Performance of an Implosion-Driven Hypervelocity Launcher
Timing Delay Analysis of the Auxiliary Pump Technique to Improve the Performance of an Implosion-Driven Hypervelocity Launcher Open
In order to understand the irreproducibility of the auxiliary pump technique, an interior ballistic solver taking into account reservoir collapse has been used to simulate the performance of launchers. Launchers with different detonation v…
View article: Imaging/Radiology: Uroradiology III (MP80)
Imaging/Radiology: Uroradiology III (MP80) Open
You have accessJournal of UrologyImaging/Radiology: Uroradiology III (MP80)1 Apr 2019Imaging/Radiology: Uroradiology III (MP80) View All Author Informationhttps://doi.org/10.1097/01.JU.0000558674.79094.e1AboutPDF ToolsAdd to favoritesDownl…
View article: Shock and Blast Interaction with Thin Films
Shock and Blast Interaction with Thin Films Open
View article: Experimental Simulation of Dust Impacts at Starflight Velocities
Experimental Simulation of Dust Impacts at Starflight Velocities Open
The problem of simulating the interaction of spacecraft travelling at velocities necessary for starflight with the interplanetary and interstellar medium is considered. Interaction of protons, atoms, and ions at kinetic energies relative t…
View article: Elvish Practitioners of the 'Secret Vice'
Elvish Practitioners of the 'Secret Vice' Open
In the course of his life Tolkien explored his thoughts and feelings on the role of language-invention in fiction in two key manifestos – his November 1931 talk 'A Secret Vice' and his 1954 O'Donnell lecture 'English and Welsh'. But Tolkie…
View article: Chapter 3: Living and built environment of the Darwin catchments
Chapter 3: Living and built environment of the Darwin catchments Open
Chapter 3 discusses a wide range of considerations relating to the living component of the catchment and the environments that support these components, the people who live in the catchment or have strong ties to it, the perspectives of in…
View article: Dynamic tensile strength of silicone oils
Dynamic tensile strength of silicone oils Open
The spall strength of polydimethylsiloxane silicone oils has been studied using the planar impact of thin flyers to generate large transient negative pressures near the free surface of target samples. The liquids were contained within seal…
View article: Case studies for the Northern Australia Water Resource Assessment. A technical report to the Australian Government from the CSIRO Northern Australia Water Resource Assessment, part of the National Water Infrastructure Development Fund: Water Resource Assessments
Case studies for the Northern Australia Water Resource Assessment. A technical report to the Australian Government from the CSIRO Northern Australia Water Resource Assessment, part of the National Water Infrastructure Development Fund: Water Resource Assessments Open