S U M M A R Y We investigate the representation of the radiated energy, E R, in earthquakes. In seismology E R is estimated from either far-field seismic waves or the stress and displacement on the fault plane. Although E R comes from the entire volume of the Earth, it can be expressed as an integral over the fault plane. However, the integrand cannot be given a simple physical meaning such as ...

With the increasing number of embedded computer systems being used in safety critical applications the testing and assessment of a system’s fault tolerance properties become a crucial issue. Experimental fault injection plays an important role in the process of fault tolerance assessment. The restricted accessibility of nodes within a chip or system-on-a-chip, however, make such experiments ext...

The restricted edge-connectivity of a graph is an important parameter to measure fault-tolerance of interconnection networks. This paper determines that the restricted edge-connectivity of the de Bruijn digraph B(d, n) is equal to 2d − 2 for d ≥ 2 and n ≥ 2 except B(2, 2). As consequences, the super edge-connectedness of B(d, n) is obtained immediately.

A novel architecture for a software-implemented fault-tolerance layer for application reliability on massively parallel computers and distributed computing systems is proposed. This is the rst attempt at providing a purely software-based, user-level solution for fault detection, reconnguration, and recovery in a parallel environment. The symmetrically distributed, multi-tiered layer envelopes u...

In this paper, we deal with the graph G0⊕G1 obtained from merging two graphs G0 and G1 with n vertices each by n pairwise nonadjacent edges joining vertices in G0 and vertices in G1. The main problems studied are how fault-panconnectivity and fault-pancyclicity of G0 and G1 are translated into fault-panconnectivity and fault-pancyclicity of G0⊕G1, respectively. Many interconnection networks suc...

Subject of research: single-phase earth faults in electrical networks medium voltage class.
 Purpose resarch: the development a simulation model for analysis transient processes that occur during "metallic" fault 35 kV network.
 Object distribution 6-35 operating isolated neutral mode.
 Main results was developed Matlab Simulink environment, which makes it possible to analyze osc...

It has been proposed that a long-period stacking ordered (LPSO) structure is responsible for the excellent mechanical properties of lightweight alloys of Mg-Y-RE (RE: rare earth elements) system. In this study, the phenomenological simulation model for describing the formation process of the LPSO structure in Mg­Y­Zn system is constructed by means of the phase-field method. The results obtained...

[1] We simulate surface waves in a 3-D Earth model using a spectral element method for existing kinematic source models of the MW 8.1, 25 March 1998 Balleny Islands earthquake. The 3-D model incorporates lateral variations in the crust and mantle on the basis of models Crust2.0 and S20RTS. Our objective is to investigate the fit of the observed and simulated long-period surface waves in the hop...

On May 17th 1999, the Remote Agent (RA) became the first Artificial Intelligence based closed loop autonomous control system to take control of a spacecraft. The RA commanded NASA’s New Millennium Deep Space One spacecraft when it was 65 million miles away from earth. For a period of one week this system commanded DS1’s Ion Propulsion System, its camera, its attitude control and navigation syst...

This research embodies the design, construction and simulation of a feeder pillar (415VAC) with over-current, overload and earth-fault protection with the aid of a phase sequence relay, contactor, earth-leakage circuit breaker and three-phase overload relay. The analog voltmeters in the various bus-bars (red, yellow and blue phases) in a conventional feeder pillar is replaced with a digital pan...