Sentence examples for barrier occur from inspiring English sources

Minor accumulations of acid-soluble, organically-bound S in the reactive barrier occur in zones of low aqueous Fe concentration.

Results show the highest life cycle environmental impacts for the CS barrier occur during materials production and transportation to the site.

NTM-induced cutaneous disease typically occurs after injections, such as tattoos, botulinum toxin, and mesotherapy, or after minor surgical procedures in which breaks in the skin barrier occur (1, 3, 5, 12 – 12 ).

In addition to the major types of vegetation described above, a special vegetation called sudd (literally meaning "barrier") occurs in the great Nile, Niger, and Zambezi drainage systems of the African interior plateau.

The "catastrophic" invasions of Lebanon, as well as the war on Gaza, the current blockade of Gaza and the much criticized building of a security barrier, occurred only after thousands of rocket attacks and scores of suicide bombers, all within Israel's legitimate borders, could not be stopped by any other means.

However, the degradation processes rapidly develop once the disruption of the protective barrier occurs.

Multiple phases of barrier construction occurred during sea-level highstands, with sediment deposition on each individual barrier occurring over at least two interglacials.

After annealing at 800 °C, the penetration of a partial number of Cu atoms through the (TiVCr N barrier occurred and thus some Cu silicides were formed.

The researchers suspected that tPA's deleterious effect on the blood-brain barrier occurs because the drug happens to activate PDGF-CC, which also weakens the blood-brain barrier.

Thinning of the blood gas barrier occurs by growth and extension of the air capillaries and by extensive disintegration of mesenchymal cells that constitute transient septa that divide the lengthening and anastomosing air capillaries.

Since the drain current, ID, of these devices strongly depends on the amount of the voltage barrier occurring in the channel, the model is capable to describe the drain voltage dependence of the voltage barrier and of ID from VDS = 0 V up to maximum VDS value (kV) sustained from device and to describe the effects of geometry and doping of channel.