The Making of Texas

This atlas presents plate reconstructions from the early Neoproterozoic (1000-750 Ma) to the present-day as derived by Ian Dalziel for the PLATES Project, Institute for Geophysics, The University of Texas at Austin.PLATES Project, Institute for Geophysics, The University of Texas at AustinInstitute for Geophysic

FINANCING AGRICULTURAL ECONOMICS RESEARCH AND EXTENSION IN THE SOUTHERN REGION

Teaching/Communication/Extension/Profession,

Eulerian spectral closures for isotropic turbulence using a time-ordered fluctuation-dissipation relation

Procedures for time-ordering the covariance function, as given in a previous paper (K. Kiyani and W.D. McComb Phys. Rev. E 70, 066303 (2004)), are extended and used to show that the response function associated at second order with the Kraichnan-Wyld perturbation series can be determined by a local (in wavenumber) energy balance. These time-ordering procedures also allow the two-time formulation to be reduced to time-independent form by means of exponential approximations and it is verified that the response equation does not have an infra-red divergence at infinite Reynolds number. Lastly, single-time Markovianised closure equations (stated in the previous paper above) are derived and shown to be compatible with the Kolmogorov distribution without the need to introduce an ad hoc constant.Comment: 12 page

Simulating the fast transport of water through carbon nanotubes

Non-equilibrium molecular dynamics simulations are performed to investigate water transport through (7,7) CNTs and to examine how changing the CNT length affects the flow dynamics. We show that fluid flow rates are well in advance of continuum expectations and that this flow enhancement increases with increasing CNT length. This enhancement is related to the internal fluid structure. Water molecules form a tightly packed cylindrical shell inside (7,7) CNTs, with densities nearly 3.5 times that of the water reservoir

Test of hadronic interaction models with air shower data

The description of high-energy hadronic interactions plays an important role in the (astrophysical) interpretation of air shower data. The parameter space important for the development of air showers (energy and kinematical range) extends well beyond todays accelerator capabilities. Therefore, accurate measurements of air showers are used to constrain modern models to describe high-energy hadronic interactions. The results obtained are complementary to information gained at accelerators and add to our understanding of high-energy hadronic interactions.Comment: Invited talk at the 13th International Conference on Elastic & Diffractive Scattering, CERN, 200

Perceived risk and the marginal value of safety.

[Dataset available: http://hdl.handle.net/10411/15662]