Once this process begins, pressure is released, more melting occurs, more upwelling occurs and the system begins to propagate itself.
At some point in time the surface becomes saturated, and an inverted zone of saturation begins to propagate downward into the soil.
The pre-crack began to propagate forward accompanied by the appearance of domain switching zones near the crack tip and the disappearance of switched zones behind the crack tip at the unipolar electric field of E = 0.8EC.
Crack initiation was considered to be the point in which the thickness of the cladding was entirely bisected and the crack was beginning to propagate into the plane of the cladding.
However, long-duration cyclic tests revealed that CD plates exhibited greater stiffness degradation and advanced damage after a cyclic threshold, beyond which machining-induced delamination cracks began to propagate.
Distinct dispersive peaks may also appear when an optical pulse, launched in the normal dispersion region, later begins to propagate in the anomalous dispersion regime because of its spectral broadening.
At dawn the summit fissure began to propagate down the northeast rift zone, and a new line of lava fountains formed at an elevation of 3,800 metres (12,500 feet).
About 220, two Babylonian disciples of Judah ha-Nasi, Abba Arika (known as Rav) and Samuel bar Abba, began to propagate the Mishna and related tannaitic literature as normative standards.
