The records of multiple Love and Rayleigh waves of the Alaska earthquake of 1964 were recovered from the 30-100 seismograph records at the WWSSN stations. The seismograms were equalized to a propagation distance of 9rr/2 (equivalent to G5 and R5 at • -r/2). These seismograms were compared with synthetic seismograms for radiation pattern and amplitude to estimate various source parameters. The s...

The ability of the electromagnetic flux measured in various locations of a 35-kW cage induction motor to provide useful information about faults was investigated. The usefulness of this monitoring parameter was assessed in comparison with some other electrical parameters used for fault detection, such as stator phase current and circulating currents between the parallel branches of the stator w...

It gives me great pleasure to deliver the keynote address at the Asian Bond Conference organised jointly by the Thai Bond Dealing Centre (Thai BDC), Fixed Income Money Market Dealers Association of India (FIMMDA) and Primary Dealers Association of India (PDAI). It is a matter of significance that some of the major self-regulatory organisations (SROs) in the debt markets of Asia have taken this ...

The peak of smooth Fourier amplitude spectra, (FS(T))max, of strong motion acceleration recorded in California is modeled via dimensional analysis. In this model, the spectrum amplitudes are proportional to (1) – the root-mean-square (r.m.s.) amplitude of the peak stresses on the fault surface in the areas of high stress concentration (asperities), and (2) (log10 N)1/2, where N is the number of...

Abstract The accurate identification of the converter transformer magnetizing inrush current can ensure safety operation UHV DC transmission system. In differential protection transformer, it is extremely hard to distinguish between excitation generated when closed and Fault due internal fault, which leads frequent misoperation extent that access fails. This paper proposes a model based on empi...

The fault diagnosis of electrical machines during startup transients has received increasing attention regarding the possibility detecting faults early. Induction motors are no exception, and motor current signature analysis become one most popular techniques for determining condition various components. However, in case inverter powered systems, a is difficult to determine from stator because ...

Mobile ad hoc networks are collections of wireless mobile nodes with links that are made or broken in an arbitrary way. They have constrained resources, restricted broadcast range and no fixed infrastructure. For these networks communication is achieved via routes whose nodes relay packets. Several routing algorithms have been proposed in the literature. These focus mainly on efficiency with se...

This paper addresses the problem of fault detection and isolation in railway track circuits. A track circuit can be considered as a large-scale system composed of a series of trimming capacitors located between a transmitter and a receiver. A defective capacitor affects not only its own inspection data (short circuit current) but also the measurements related to all capacitors located downstrea...