To fabricate the buried grating, the top cladding was removed down to the upper InGaAs layer.
This is in particular true for "ppm reactions" in which one component should be removed down to a ppm level.
To make the buried CRPC grating, the top InP cladding was removed down to the upper InGaAs layer.
To fabricate the buried grating, the top waveguide cladding layer was removed down to the upper InGaAs layer.
Other severe damage was seen at Marsawah village, Bulakbenda, where all buildings had been removed down to their foundation within 150 m of the water line, and even 300-500 m further inland there were many buildings that were totally destroyed.
If the plan is approved, the structure would likely be removed down to 85 feet below the water surface, as required under a federal rigs-to-reefs program.
Slag and soot particles, tars, alkali salts, and gaseous S-, N-, and Cl-containing impurities like H2S, COS, CS2, NH3, HCN, HCl, etc. have to be removed down to below the part-per-million level to prevent poisoning of the highly selective but sensitive catalysts.
Firstly, aggregated particles were removed by down-sinking with 1,771 × g for 1 h.
The heat-treating was developed based on the following proceeding: strengthened specimens were kept in oven and exposed to constant temperature over a period of three hours, then, they were removed and cooled down freely to ambient temperature.
As the brownstones were demolished or were turned into rooming houses and small apartments, thousands of stoops were removed or torn down.
