Super Growth Research Articles

Phase transformation mechanisms involved in excimer laser crystallization of amorphous silicon films

We have investigated the phase transformation mechanisms and the resulting microstructures of excimer laser-induced crystallization of amorphous Si films on SiO2. It is shown that the process can be characterized into two major regimes, based on the dependence of the grain size and the melt duration as a function of the incident energy density. It is found that at the transition between the two regimes, exceedingly large grain-sized polycrystalline films can be obtained. We call this the super lateral growth phenomenon, and propose a model based on liquid-phase regrowth from the residual solid seeds when near-complete melting of the Si film occurs.

Super growth of silkglands in the dauer larvae of the silkworm, Bombyx mori, induced by a juvenile hormone analogue

Super growth of silkglands in the dauer larvae of the silkworm, Bombyx mori, induced by a juvenile hormone analogue

The effect of R-ratio on the elevated temperature fatigue crack growth behaviour of [formula omitted] steel

A fatigue study has been conducted utilising precracked, C-shaped, Linear Elastic Fracture Mechanics (LEMF) type test specimens of 2 1 4 Cr/Mo steel tube material at a temperature of 588°C. A critical value of ΔK has been established, termed ΔK IG , where creep-fatigue interactive crack growth occurs and such behaviour is typified by (i) a ΔK 10 dependence on crack growth rates, (ii) a fatigue failure mode that is integranular in nature and (iii) super continuum crack growth rates which reside above the 1 2 CTOD line. It has also been shown that R-ratio markedly affects the value of ΔK IG inasmuch as increasing the value from 0·1 to 0·5 decreased the ΔK IG value from 20 to 12 MPa✓m. Also the probable critical event, i.e. cavitation linkage, that results in creep-fatigue interactive behaviour, occurs at a constant value of K max of about 22 to 24 MPa✓m for the present experimental circumstance; this suggests that creep damage or cavitation plays some important mechanistic role. Finally it is suggested that increasing the R-ratio from 0·1 to 0·5 decreased the elevated temperature threshold stress intensity range, ΔK th , from 9 MPa✓m to a value approaching 5 MPa✓m.

Gap analysis key to super growth

Micheal J. Kami contributed substantially to the early development of Corporate Planning. He was responsible for establishing the long range planning system at I.B.M. (1959–1964) and at Xerox Corporation (1964–1967). For the Journal he decided to write “something short and simple as a contrast to the rather complicated operations research type articles that appear in the first issue. There is nothing wrong with complexity except that the key and vital issues in corporations are not decided in that way”. In this brief article he, explains the concept of “gap analysis” and explains how it may be used to force top management to make continual and realistic comparisons between their stated objectives and the forecast results of present plans.