Anti-plane cracked functionally graded finite piezoelectric solid under time-harmonic elecromechanical load is studied by a non-hypersingular traction boundary integral equation method (BIEM). Exponentially varying material properties are considered. Numerical solutions are obtained by using Mathematica. The dependance of the intensity factors (IF) - mechanical stress intensity factor (SIF) and electrical field intensity factor (FIF) on the inhomogeneous material parameters, on the type and frequency of the dynamic load and on the crack position are analyzed by numerical illustrative examples
The studies of human influence on the effectiveness of professional activity should consider that the concept of "human factor" is too general, and it is impossible to use it for an objective evaluation of human's professional activity. The most powerful and robust factors of human behavior, such as virtue, will and interest, are not considered enough in the studies of the influence of the human factor on the individual's professional activity. The research results presented in the article change the existing opinion that the only way to increase the effectiveness of professional activity is to increase the effort to select people with the necessary qualities, skills and high level of professional and psychological training. Such effort to optimize the secondary factors, and ignorance towards the effect of the key behavioral factors (virtue -will -interest), are the fundamental errors and the reasons of the low work effectiveness.
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