I explain the geometric basis for the recently-discovered nonholonomic mapping principle which permits deriving laws of nature in spacetimes with curvature and torsion from those in flat spacetime, thus replacing and extending Einstein’s equivalence principle. As an important consequence, it yields a new action principle for determining the equation of motion of a free spinless point particle i...

In an inertia-type motor, a piezoelectric multilayer actuator is espoused to transient vibration velocity as high 1.0 m/s during slip time. This makes the motors dynamic but not quasi-static. We propose kinetic model describe condition under which slippage can occur between slider and stator. The current absorbed by actuators in stator time defines behavior of slider. A new thickness-mode force...

Specialised literature presents a number of models describing the function of the vocal folds. In most of those models an emphasis is placed on the effect of Bernoulli’s air underpressure during the air passage through the glottis. The author defines a principle of the vocal folds function with a working version name „principle of the compressed air bubble“. The paper deals with the experimenta...

This paper presents an alternative and efficient method for solving the optimal control of single-stage hybrid manufacturing systems which are composed with two different categories: continuous dynamics and discrete dynamics. Three different inertia weights, a constant inertia weight (CIW), time-varying inertia weight (TVIW), and global-local best inertia weight (GLbestIW), are considered with ...

In this article, we described the equations of motion a rigid solid by matrix formulation. The matrices contained in our movement description are homogeneous to same unit. Inertial characteristics met 4x4 positive definite symmetric called "tensor generalized Poinsot." This consists 3x3 "inertia tensor Poinsot", coordinates center mass multiplied total body and body. formulated as gender skew m...

The Finite Element (FE) method has been used to study full-scale oblique impacts of a motorcycle helmet. For these impacts, an elaborate FE model of the human body was employed. The results were compared to the results of the same impacts but by using the detached head of the body. It has been found that the presence of the body influences the head rotational acceleration components (up to 40% ...

Assessing emotional dynamics in the brain offers insight into the fundamental neural and psychological mechanisms underlying emotion. One such dynamic is emotional inertia-the influence of one's emotional state at one time point on one's emotional state at a subsequent time point. Emotion inertia reflects emotional rigidity and poor emotion regulation as evidenced by its relationship to depress...