propagation rate

propagation rate

[‚präp·ə′gā·shən ‚rāt]
(chemistry)
The speed at which a flame front progresses through the body of a flammable fuel-oxidizer mixture, such as gas and air.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
MS medium containing 160 mg L-1 adenine sulfate was found to be optimal for the propagation rate of papaya (Reuveni et al.
The total life of a cyclic loaded component with a flaw depends on the propagation rate of the flaw from its original size to a critical size.
Let [[lambda].sub.i,j] = 1,..., n, j = 1,..., m, denote the propagation rate from [D.sup.(k).sub.i,j] [right arrow] [C.sup.(k).sub.i,j], [[mu].sub.i,j] denote rate of transformation from [C.sup.(k).sub.i,j] [right arrow] [C.sup.(k).sub.i,j+1], and [[mu].sub.i,m] denote the rate of transformation [C.sup.(k).sub.i,m] [right arrow] R.
where da/dN is the crack propagation rate; [DELTA]K is the stress intensity factor range and C, m are material constants.
crack propagation rate da/dN drawing there were manufactured by four CT specimens of each steel, CS500 and CS700.
Also, as the ratio of spray combustion/flame propagation in the overall ROHR is increased, the initial flame kernel is larger and consequently the initial flame propagation rate increases.
Secondly, several fatigue crack propagation tests were carried out for RC beams strengthened with CFL under high temperature and high humidity (50[degrees]C, 95% R * H) and indoor atmosphere (23[degrees]C, 78% R * H) to obtain fatigue crack propagation rate, da/dN.
Additionally, the crack propagation rate is a major factor in determining the monotonic plastic zone propagation rate.
Zhu [9] and Wei [8] have also demonstrated that the crack propagation rate is not solely controlled by the applied cyclic loading (represented by the stress intensity factor, [DELTA]K), but also by the environment humidity.
The soft error propagation rate between modules is [w.sub.i,j], i = 1, ..., N.
When tested in the tear analyzer, NR is shown to have very low crack propagation rates (figure 2), but heat aging dramatically worsens the crack propagation rate of NR, making it similar to ultra-EPDM.
As a consequence of this, higher radical concentration is built up which increases the termination rate vis-a-vis propagation rate. This behaviour was also observed by Dai et al.