Smoothed Particle Magnetohydrodynamics (some shocking results...)

There have been some issues in the past in attempts to simulate magnetic fields using the Smoothed Particle Hydrodynamics (SPH) method. SPH is well suited to star formation problems because of its Lagrangian nature. We present new, stable and conservative methods for magnetohydrodynamics (MHD) in SPH and present numerical tests on both waves and shocks in one dimension to show that it gives robust and accurate results.Comment: Kluwer latex, 6 pages, 3 figures; Proceedings of the International Workshop "Magnetic Fields and Star Formation: Theory vs Observations", Madrid, 21-25 April 2003. Revised version accepted to proceedings (exact solutions added, other minor changes

The Eschatology of the Dead Sea Scrolls

The Dead Sea sect represents a unique view of Second Temple Judaism at an important juncture with the beginning of Jewish Christianity. A study of the eschatological views of the sect provides an historical and theological background for comparison with the views of Jesus and of early Jewish Christianity recorded in the New Testament. It further illustrates why Jewish eschatology should be a course of study within Jewish Studies and New Testament studies

The Health Crisis for CHA Families

Outlines a study of long-term trends in the health status of Chicago's distressed public housing residents, including chronic illness, disability, mortality rates, and anxiety. Examines limited effects of moving to better housing and their implications

Design, fabrication and evaluation of tungsten encapsulated silver infiltrated porous tungsten rocket nozzle inserts Final report

Rocket nozzle throat insert encapsulated in solid tungsten cas

Open plan and academe: pre- and post-hoc conversations

There now exists a strong body of evidence that creative workplaces can, in certain circumstances, exert beneficial influences on organisational cultures and outputs. Academia tends to resist such spaces and faculty buildings. The reasons are explored but the reactions of staff are not found to be different from those reported in the literature on general creative spaces. The success or failure of team oriented workspaces is in large part a socially constructed perception influenced by the manner of implementation and management. As elsewhere new workplaces are about new conversations. The cases studied lead to a model of the tensions inherent in workplace redesign.</p

The nature of multiple solutions for surface wind speed over the oceans from scatterometer measurements

The satellite SEASAT-A will carry a radar scatterometer in order to measure microwave backscatter from the sea surface. From pairs of radar measurements at angles separated by 90 deg in azimuth the surface wind speed and direction may be inferred, though not uniquely. The character of the solutions for wind speed and direction is displayed, as well as the nature of the ambiguities of these solutions. An economical procedure for handling such data is described, plus a criterion for the need for conventional (surface) data in order to resolve the ambiguities of solutions

Analysis of some methods for obtaining sea surface temperature from satellite observations

Satellite measurements of sea surface temperature must be corrected for atmospheric moisture, cloud contamination, reflected solar radiation and other sources of error. Procedures for reducing errors are discussed. It appears that routine accuracies of 1 C are possible, given low noise spectral measurements in the infrared

A solution to the overdamping problem when simulating dust-gas mixtures with smoothed particle hydrodynamics

We present a fix to the overdamping problem found by Laibe & Price (2012) when simulating strongly coupled dust-gas mixtures using two different sets of particles using smoothed particle hydrodynamics. Our solution is to compute the drag at the barycentre between gas and dust particle pairs when computing the drag force by reconstructing the velocity field, similar to the procedure in Godunov-type solvers. This fixes the overdamping problem at negligible computational cost, but with additional memory required to store velocity derivatives. We employ slope limiters to avoid spurious oscillations at shocks, finding the van Leer Monotonized Central limiter most effective.Comment: 6 pages, 5 figures, accepted to MNRA