{'fraction_non_alphanumeric': 0.01998001998001998, 'fraction_numerical': 0.006993006993006993, 'mean_word_length': 4.693181818181818, '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}}
Microwave Frequencies Used To Detect Victims " Buried Alive

In the past, when victims of landslides or collapsed buildings were trapped beneath the earth or concrete, debris or rubble, there was little chance that they would be found. This was due to the fact that search techniques were limited to the use of human sensory detection, optical/seismic devices and animals which specialized in detection of buried victims. If the victim was being crushed or unconscious and could not cry for help, there would be little chance he/she could be heard and found. This was all before microwave techniques were developed to detect life signs (up to nine feet into debris). With the use of two tested frequencies at 450MHz and 1150MHz, recent results seem to indicate that clear and distinct heart beats and respiratory signals can be detected. There seems to still be some factors not yet dealt in too much detail such as liquid / mud barrier and multiple personnel interference (searching in the vicinity).