Britainâs response was swift. The following spring, Parliament passed four acts known collectively, by the British, as the âCoercive Acts.â Colonists, however, referred to them as the âIntolerable Acts.â First, the Boston Port Act shut down the harbor and cut off all trade to and from the city.
The bulk density often is the bulk density of the powder âas pouredâ or as passively filled into a measuring vessel. The tapped density is a limiting density attained after âtapping down,â usually in a device that lifts and drops a volumetric measuring cylinder containing the powder a fixed distance.
The trickling filter is usually designed with a recirculation pattern for the effluent to improve wetting and flushing of the filter material. With time, the biomass will grow thick and the attached layer will be deprived of oxygen; it will enter an endogenous state, will lose its ability to stay attached and will slough off.