– One of the important applications of robots is in material handling and transport of various shaped objects. In cases where an object cannot be directly grasped by the robot gripper, and must be carried by a hook, it may be subject to undesirable swings during transport. This paper presents an analytical method for minimizing the oscillation of a suspended object during transport. This method...

The standard big bang cosmological model and the history of the early universe according to the grand unified theories of strong, weak and electromagnetic interactions are summarized. The shortcomings of big bang are discussed together with their resolution by inflationary cosmology. Inflation and the subsequent oscillation and decay of the inflaton field are studied. The density perturbations ...

To understand the oscillatory behavior exhibited in timelike electromagnetic form factors of nucleons, we propose a toy model based on Jost function $N\bar N$ pair into with help distorted-wave Born approximation. By constructing simple square-well potential reflecting final-state interaction N$, naturally represent damped phenomenon nucleons. Especially, our study reveals that ``period" oscill...

Plasmon resonance is the resonant oscillation of conduction electrons at interface between negative and positive permittivity material stimulated by incident light, which forms fundamental basis many cutting-edge industrial applications. We are concerned with quantitative theoretical understanding this peculiar phenomenon. It known that occurrence plasmon as well its behaviours critically depen...

Pulsar magnetospheres admit non-stationary vacuum gaps that are characterized by non-vanishing ${\bf{E}} \cdot {\bf{B}}$. The play an important role in plasma production and electromagnetic wave emission. We show these generate axions whose energy is set the gap oscillation frequency. density of produced a can be several orders magnitude greater than ambient dark matter density. In strong pulsa...