منابع مشابه
Rainer Klump
Using a normalized CES function with factor-augmenting technical progress, we estimate a supply-side system of the US economy from 1953 to 1998. Avoiding potential biases that have occurred in earlier estimations and putting a high emphasis on the consistency of the data set, required by the estimated system, we obtain robust results not only for the aggregate elasticity of substitution but als...
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Rainer Hedrich studies phytosensorics and plant electrical signaling at the University of Würzburg.
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Schon lange nicht mehr war so viel Zukunft wie heute. Mit Bankencrash, Fukushima und Deepwater Horizon sind unversehens die ökonomischen und technischen Großrisiken, die Katastrophen, Gefahren und Unsicherheiten in die Gegenwart einer Weltordnung zurückgekehrt, deren Protagonisten einst das »Ende der Geschichte« versprachen, womit sich kurzweg die Frage der Zukunft und ihrer Alternativen erledi...
متن کاملFrom Ewald sphere to Ewald shell in nonlinear optics
Ewald sphere is a simple vector scheme to depict the X-ray Bragg diffraction in a crystal. A similar method, known as the nonlinear Ewald sphere, was employed to illustrate optical frequency conversion processes. We extend the nonlinear Ewald sphere to the Ewald shell construction. With the Ewald shell, a variety of quasi-phase-matching (QPM) effects, such as the collective envelope effect asso...
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The Distributed Particle-Mesh Ewald method (DPME) is a parallel Ewald summation method that is based on the O(NlogN) PME method for evaluating the electrostatic interactions of a periodic particle system, where N is the number of particles in the unit cell. We present three implementations of the DPME method which are evaluated on a network of workstations and the Cray T3D. The performance of t...
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ژورنال
عنوان ژورنال: The Modern Language Review
سال: 1946
ISSN: 0026-7937
DOI: 10.2307/3717510