Spontaneous combustibility character of the Talcher coals has been measured in terms of peroxy complex and crossing point temperature. Coal samples collected from the two horizons i.e. Karharbari Formation and Barakar Formation were separately studied and the values measured for the aforesaid parameters were recorded. It was found that the coals of this coalfield are highly prone to spontaneous...

Testing the time dependence of the fundamental constants in the spectra of multicharged ions Abstract A new method for measuring a possible time dependence of the fine-structure constant (α) is proposed. The method is based on the level-crossing in two-electron highly-charged ions facilitating resonance laser measurements of the distance between the levels at the point of crossing. This provide...

1 The author gratefully acknowledges the support of K. C. Wong Education Foundation, Hong Kong. ABSTRACT In this paper, a novel waveform coding approach based on half-wave vector quantization is presented. The input speech signal is divided into frames, each of which is classified as silence, unvoiced and voiced. The voiced category is subdivided into 64 sub-categories according to the length o...

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