Abstract: This paper presents a new adaptive controller designed for rigid-body robots including motor dynamics. Recently, the effects of motor dynamics have attracted attention from a number of researchers. ...

Abstract: The impedance of a passive noise control device is strictly positive real, if the device is installed in noise fields with weak mean flows. Passive noise control devices are, therefore, more ...

Abstract: Active control is applicable to resonators to improve noise control performance. Many active resonators depend on transfer functions from secondary sources to sensors to generate destructive ...

Abstract: In this study, we derive the general equations of motion for the helical spring with a cup damper by considering the damper’s dilation and varying pitch angle of the helical spring. These ...

Abstract: An acidic soil was deliberately contaminated with lead (Pb), cadmium (Cd), and chromium (Cr). The heavy metal speciation in the aged soil sample was analyzed using a sequential extraction procedure. A single-step extraction ...

Abstract: The North Equatorial Subsurface Current (NESC) is a subthermocline ocean current uncovered recently in the tropical Pacific Ocean, flowing westward below the North Equatorial Countercurrent. In this study, the dynamics of ...

Abstract: An integrated slurry-phase remedial system was developed for cleanup of polycyclic aromatic hydrocarbon (PAH) contaminated soil in Singapore. The bench-scale remedial system consisted of a chemical treatment to initiate ...