71,046 research outputs found
American Airlines LOFT evaluation program
The development of a test program to evaluate recurrent training LOFT and a three-legged scenario used for the evaluation are highlighted. The test guidelines set up and the questionnaires sent to crew member participants are examined
Triangle Anomalies, Thermodynamics, and Hydrodynamics
We consider 3+1-dimensional fluids with U(1)^3 anomalies. We use Ward
identities to constrain low-momentum Euclidean correlation functions and obtain
differential equations that relate two and three-point functions. The solution
to those equations yields, among other things, the chiral magnetic
conductivity. We then compute zero-frequency functions in hydrodynamics and
show that the consistency of the hydrodynamic theory also fixes the
anomaly-induced conductivities.Comment: 4+epsilon pages, REVTeX 4.1; v2: updated reference
Low-density series expansions for directed percolation III. Some two-dimensional lattices
We use very efficient algorithms to calculate low-density series for bond and
site percolation on the directed triangular, honeycomb, kagom\'e, and
lattices. Analysis of the series yields accurate estimates of the critical
point and various critical exponents. The exponent estimates differ only
in the digit, thus providing strong numerical evidence for the
expected universality of the critical exponents for directed percolation
problems. In addition we also study the non-physical singularities of the
series.Comment: 20 pages, 8 figure
Charge-transfer photodissociation of adsorbed molecules via electron image states
The 248nm and 193nm photodissociation of submonolayer quantities of CHBr
and CHI adsorbed on thin layers of n-hexane indicate that the dissociation
is caused by dissociative electron attachment from sub-vacuum level
photoelectrons created in the copper substrate. The characteristics of this
photodissociation-- translation energy distributions and coverage dependences
show that the dissociation is mediated by an image potential state which
temporarily traps the photoelectrons near the n-hexane--vacuum interface, and
then the charge transfers from this image state to the affinity level of a
co-adsorbed halomethane which then dissociates.Comment: submitted to Journal of Chemical Physic
Lesson learnt from the implementation of Index-Insurance for livestock in the African drylands: Toward early response and regional scaling
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