نتایج جستجو برای: downward set
تعداد نتایج: 671177 فیلتر نتایج به سال:
We show (in confirmation of previous work) using oneand three-dimensional models that extratropical zonal wind anomalies, produced by fluctuating Rossby wave forcing in the troposphere, appear first in the stratosphere, and migrate downward into the troposphere. By systematically eliminating wave reflection and “downward control” through an induced meridional circulation, it is shown that the d...
Fast Downward Stone Soup is a sequential portfolio planner that uses various heuristics and search algorithms that have been implemented in the Fast Downward planning system. We present a simple general method for concocting “planner soups”, sequential portfolios of planning algorithms, and describe the actual recipes used for Fast Downward Stone Soup in the sequential optimization and sequenti...
How restriction enzymes with their different specificities and mode of cleavage evolved has been a long standing question in evolutionary biology. We have recently shown that several Type II restriction endonucleases, namely SsoII (downward arrow CCNGG), PspGI (downward arrow CCWGG), Eco-RII (downward arrow CCWGG), NgoMIV (G downward arrow CCGGC), and Cfr10I (R downward arrow CCGGY), which reco...
A preference method probed infants' perception of object motion on an inclined plane. Infants viewed videotaped events in which a ball rolled downward (or upward) while speeding up (or slowing down). Then infants were tested with events in which the ball moved in the opposite direction with appropriate or inappropriate acceleration. Infants aged 7 months, but not 5 months, looked longer at the ...
We report discovery of collinear-magnetism-driven ferroelectricity in the Ising chain magnet Ca3Co2-xMn(x)O6 (x approximately 0.96). Neutron diffraction shows that Co2+ and Mn4+ ions alternating along the chains exhibit an up-up-down-down ( upward arrow upward arrow downward arrow downward arrow) magnetic order. The ferroelectricity results from the inversion symmetry breaking in the upward arr...
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