11,035 research outputs found
Sea Turtle Observations at Explosive Removals of Energy Structures
Observers were placed at offshore sites to monitor and protect sea turtles during explosive removals of oil and gas structures in the Gulf of Mexico off Louisiana and Texas. Data collected during more than 6,500 hours of monitoring at 106 structure removals in 1992 provided information on sea turtle distribution. Eighteen individuals were observed including 10 loggerheads, 2 leatherbacks, 1 hawksbill, and 5 unidentified sea turtles. The observation rate (individuals per monitoring hour) of sea turtles was about 30 times higher during aerial surveys than during day or night suiface surveys
Computer program for calculating laminar, transitional, and turbulent boundary layers for a compressible axisymmetric flow
Finite-difference computer program calculates viscous compressible boundary layer flow over either planar or axisymmetric surfaces. Flow may be initially laminar and progress through transitional zone to fully turbulent flow, or it may remain laminar, depending on imposed boundary conditions, laws of viscosity, and numerical solution of momentum and energy equations
Local-dephasing-induced entanglement sudden death in two-component finite-dimensional systems
Entanglement sudden death (ESD), the complete loss of entanglement in finite
time, is demonstrated to occur in a class of bipartite states of qu-d-it pairs
of any finite dimension d > 2, when prepared in so-called `isotropic states'
and subject to multi-local dephasing noise alone. This extends previous results
for qubit pairs [T. Yu, J. H. Eberly, Phys. Rev. Lett. 97, 140403 (2006)] to
all qu-d-it pairs with d > 2.Comment: 8 pages, to appear in Phys. Rev.
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