{'fraction_non_alphanumeric': 0.011385199240986717, 'fraction_numerical': 0.003795066413662239, 'mean_word_length': 5.0, '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}}
Progressive Wave Propagation in the Meridian Plane of a 6 mm-Type Piezoelectric Crystal Subject to Initial Fields

The purpose of this paper is to derive the conditions of the propagation of progressive waves in the meridian plane of 6 mm-type piezoelectric crystal subject to mechanical and electrical initial fields. The author obtains the velocities of propagation as closed-form solutions and analyzes the polarization of the respective waves. The influence of the initial fields on the shape of slowness surfaces is shown.