We present description and analysis of a novel orthogonal accuracy clock synchronization algorithm (OA), which takes care of both precision and accuracy with respect to external time. It is based upon the generic algorithm introduced in [SS97a] and utilizes a convergence function based on Marzullo’s fault-tolerant intersection function. As far as precision is concerned, we show that OA has the ...

The real-world travelling wave fault data investigated in this paper indicate disturbances generate unpredictable, non-stationary and random waveforms which may cause maloperation of protection control elements a power system including locators (TWFL). This type locator is directly dependent on the detection an accurate time arrival (ToA) waves (TW) generated by fault. becomes complicated prese...

The paper investigates the uncertainty of Web Services performance and the instability of their communication medium (the Internet), and shows the influence of these two factors on the overall dependability of SOA. We present our practical experience in benchmarking and measuring the behaviour of a number of existing Web Services used in e-science and bio-informatics, provide the results of sta...

The characteristics of near-fault ground motion are investigated considering heterogeneous slip distribution on the fault plane. Areas on the fault plane with large slip in compare with the average slip on the fault are known as asperity. The characteristics of strong ground motions in near-fault area are strongly affected by faulting parameters such as asperity location, maximum slip of asperi...

Fluid-fault interactions result in many two-way coupled processes across a range of length scales, from the micron scale shear zone to kilometer slip patch. The separation and complex coupling render fluid-fault challenging simulate, yet they are key for our understanding experimental data induced seismicity. Here we present spectral boundary-integral solutions in-plane interface sliding openin...

edge detection and edge enhancement techniques play an essential role in interpreting potential field data. this paper describes the application of various edge detection techniques to gravity data in order to delineate the edges of subsurface structures. the edge detection methods comprise analytic signal, total horizontal derivative (thdr), theta angle, tilt angle, hyperbolic of tilt angle (h...

The application of computer systems has now crossed many different fields. Systems are becoming more software intensive. The requirements of the customer for a more reliable software led to the fact that software reliability is now an important research area. One method to improve software reliability is by the application of redundancy. A careful use of redundancy may allow the system to toler...

The packaging materials industry has already recognized the importance of Total Productive Maintenance as a system of proactive techniques for improving equipment reliability. Bearing faults, which often occur gradually, represent one of the foremost causes of failures in the industry. Therefore, detection of their faults in an early stage is quite important to assure reliable and efficient ope...