Advanced methods of analysis have shown promise in providing economical building structures through accurate evaluation of inelastic structural response. One method of advanced analysis is the plastic zone (distributed plasticity) method. Plastic zone analysis often has been deemed impractical due to computational expense. The purpose of this article is to illustrate applications of plastic zon...

At the Supercomputing Research Center we have built a compute farm consisting of 16 SPARCStation ELCs. The ELCs all support the Mether distributed shared memoryy13], which has primitives to support eecient synchronization and use of the network and processorss14]. Mether does not support the traditional consistency semantics provided by, e.g., Ivyy12] or Mach external pagerss9]. The rst paralle...

Evaluating Environmental Programs: The Perspective of Modern Evaluation Research Large-scale environmental programs generally commit substantial societal resources, making the evaluation of their actual effects on the relevant outcomes imperative. As the example of the subsidization of energy-saving appliances illustrates, much of the applied environmental economics literature has yet to confro...

This paper employs an arti cial agent{based computational approach to understanding and designing laboratory environments in which to test Kiyotaki and Wright's search model of money. The behavioral rules of the arti cial agents are modeled on the basis of prior evidence from human subject experiments. Simulations of the arti cial agent{based model are conducted in two new versions of the Kiyot...

We collect data on trust and trustworthy behavior from eighty-four iterations of the Berg, Dickhaut, and McCabe Investment game (the “trust” game). We perform a meta-analysis of these games in order to identify the effect of experimental protocols and cross-country cultural differences on trust and trustworthiness. We find that approximately 40% of the variance in trust and 30% of the variance ...

In the paper the impact of R&D cooperation on prices in experimental duopoly markets is examined. As a theoretical benchmark for the experiment, a two-stage duopoly model with an R&D stage with technological spillovers and a pricing stage is used. For two scenarios of technological spillovers (no versus complete spillovers), a treatment where it is possible to credibly commit to an R&D contract...

The Marching Cubes algorithm is a popular high-resolution isosurface extraction method used in volume data visualization. However, it is relatively computationally intensive making real-time operation on normal workstations a diicult goal when applied to large datasets. One solution is to transform the serial algorithm into a vector-parallel algorithm designed to exploit the potential computing...

We are currently witnessing rapid advances in atomistic level computations in materials science and condensed matter physics. At the same time working electronic devices are being fabricated on the nanome-ter scale. We will soon reach a cross-over point where the size of the modelled or simulated physical system , at the atomistic (quantum mechanical) level is the same as that of the fabricated...

The Goldbach conjecture states that every even integer 4 can be written as a sum of two prime numbers. It is known to be true up to 4 10. In this paper, new experiments on a Cray C916 supercomputer and on an SGI compute server with 18 R8000 CPUs are described, which extend this bound to 10. Two consequences are that (1) under the assumption of the Generalized Riemann hypothesis, every odd numbe...

The breeding method has been used to generate perturbations for ensemble forecasting at the National Centers for Environmental Prediction (formerly known as the National Meteorological Center) since December 1992. At that time a single breeding cycle with a pair of bred forecasts was implemented. In March 1994, the ensemble was expanded to seven independent breeding cycles on the Cray C90 super...