Nonlinear Dust lattice modes are studied in a hexagonal two-dimensional dusty plasma lattice, in presence of charge gradient of dust particles. In this lattice, such gradients affect nonlinear behavior of dust lattice waves. The amplitude modulation of off-plane transverse dust lattice wave packets is investigated considering the anisotropy of interactions, caused by the height-dependent char...

Bimodal spectrum wave conditions, known as crossing seas, can produce extreme waves which are hostile to humans during oceanic activities. This study reports some new findings of the probability in deep random seas response variation spectral bandwidth through fully non-linear numerical simulations. Two issues addressed, namely (i) impacts on changes statistics, i.e., kurtosis and crest exceeda...

This paper aims to improve a fine lapping process of hard disk drive (HDD) lapping machines by removing materials from each slider together with controlling the strip height (SH) variation to minimum value. The standard deviation is the key parameter to evaluate the strip height variation, hence it is minimized. In this paper, a design of experiment (DOE) with factorial analysis by twoway analy...

WANG, P. and KRAUS, N.C., 2005. Beach profile equilibrium and patterns of wave decay and energy dissipation across the surf zone elucidated in a large-scale laboratory experiment. Journal of Coastal Research, 21(3), 522–534. West Palm Beach (Florida), ISSN 0749-0208. The widely accepted assumption that the equilibrium beach profile in the surf zone corresponds with uniform waveenergy dissipatio...

We seek to clarify the nature of running penumbral (RP) waves: are they chromospheric trans-sunspot waves or a visual pattern of upward-propagating waves? Full Stokes spectropolarimetric time series of the photospheric Si i 10827 Å line and the chromospheric He i 10830 Å multiplet were inverted using a MilneEddington atmosphere. Spatial pixels were paired between the outer umbral/inner penumbra...

Human gait is a new biometric resource in visual surveillance system. It can recognize individual as the way they walk. In the walking process, the human body shows regular periodic variation, such as upper and lower limbs, knee point, thigh point, height, etc. which reflects the individual’s unique movement pattern. However from a computational perspective, it is quite difficult to extract som...