{'fraction_non_alphanumeric': 0.014054054054054054, 'fraction_numerical': 0.001081081081081081, 'mean_word_length': 4.7875, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The use of positron emission particle tracking as a method for tracking particles in flotation froths

Positron emission particle tracking has been used to track the motion of galena particles in the froth phase of a flotation cell. The particle has been observed to move through the froth and towards the weir before overflowing to be collected. Whilst in the froth, the particle detaches from a bubble, falls down the froth before re-attaching and moving up once again. This detachment has also been noted through an increase in the speed of the particle, before decreasing once again after re-attachment. The speed in the froth is also considerably lower than in the pulp prior to air being added to the cell–a difference of up to 2 orders of magnitude. This method of particle tracking has considerable potential for following the trajectory of particles in froths and foams, and therefore improving computational models.