BP will use a relatively new " thin film " technology which deposits an extremely thin layer of active material on a glass base.
42.
These active materials inhibit a key enzyme ( cytochrome P450 isoform CYP3A4 ) which is responsible ( among other activities ) to drug metabolism.
43.
The initiator group built test assemblies by drilling holes in large turbine ball bearings, inserting the active material, and plugging the holes with bolts.
44.
The active materials change physical form during charge / discharge, resulting in growth and distortion of the electrodes, and shedding of electrode into the electrolyte.
45.
The disk laser concepts allows very high average and peak powers due to its large area leading to moderate power densities on the active material.
46.
These two factors, together with the reduced amount of active material in quantum wells, leads to better performance in optical devices such as laser diodes.
47.
Disposable primary cells cannot be reliably recharged, since the chemical reactions are not easily reversible and active materials may not return to their original forms.
48.
The cleanup operation was much harder for this event than it could have been because the source was opened and the active material was water soluble.
49.
Another milestone towards the development or organic light emitting diodes ( OLEDs ) was the recognition that also conjugated polymers can be used as active materials.
50.
It gradually became evident that the active material in purified extracts had astonishingly high potency in micrograms of DNA that could consummate the pneumococcal transformation in vitro.
