US-based membrane technology company Hydranautics Nike Air Force 1 Id
has been awarded a contract by the City of Boca Raton, Florida, USA, to supply a potable water plant, rated at over 150 million litres (about 40 million gallons) per day.
This is a short news story only. Nike Air Max 1 Essential
Visit www.filtsep.com for the latest filtration industry news.
A view is presented which argues that hierarchically organized, complex systems are in no sense unlikely to come about in a world in which thermodynamics is operative, and that they, in fact, often represent states of greater entropy than unorganized systems of the same components. This view is also brought to bear on the problem of how qualitatively new behavior arises out of simple, interacting components.
We present a simplified version of the 2D incompressible Navier-Stokes equations' attractor dimension estimate, originally derived by Constantin, Foias and Temam [Physica D 30 (1988) 284–296], by considering the attractor for the vorticity in the Hilbert space L2.
We study the on-line version of the maximum independent set problem, for the case of disk graphs which are graphs resulting from intersections of disks on the plane. In particular, we investigate whether randomization can be used to break known lower bounds for deterministic on-line independent set algorithms and present new upper and lower bounds.