In this work the equations of motion of a Solid State Wave Gyroscope (SWG) with rotary thin cylindrical shell resonator is analyzed using the shell and plates elasticity theory. The gyroscope conversion factor found in this analytical study corresponds with the experimental results obtained and listed in the References. The function of the SWG to measure the angular velocity or the rotating ang...

As with all coral reef systems, the ecology of Ningaloo Reef is closely linked to water circulation which transport and disperse key material such as nutrients and larvae. Circulation on coral reefs may be driven by a number of forcing mechanisms including waves, tides, wind, and buoyancy effects. Surface waves interacting with reefs have long been known to dominate the currents on many coral r...

The present study investigates the conspicuous shortcomings of the whitecapping dissipation model implemented in WAM Cycle 4.5 [1], following the lead of the work of [2] and [3]. Its dependence on an overall wave steepness unavoidably yields systematic errors when more than one wave system is propagating. The complex orography and highly variable winds at the Catalan coast lead to fetchand dura...

Recent observational studies demonstrate that airsea momentum flux at high wind conditions in hurricanes strongly depends on the wave field and that the drag coefficient (Cd = u*/U10) levels off or even decreases at very high winds (Powell et al. 2003). Yet most hurricane research and forecast model utilize the bulk parameterization, i.e., the boundary layer parameterization based on the Monin-...

From research on stratospheric dynamics there has emerged what might prove to be some useful fresh ideas about the problem of water-wave generation by wind. As pointed out in an earlier contribution (1993), water waves can be systematically amplified by two irreversible, ratchet-like mechanisms that depend on spatio-temporal inhomogeneities, such as wind gustiness and wave groupiness. Neither m...

In this paper, sloshing inside a novel passive control device termed tuned liquid multi-column damper (TLMCD) for mitigating rotational motions of semi-submersible floating offshore wind turbine (FOWT) is numerically modelled using high-fidelity CFD approach. Test cases the under various external excitations including single degree surge and pitch as well combined surge/pitch are presented anal...

It is proven that the lowest excitations Elow(k) of one-dimensional halfinteger spin generalized Heisenberg models and half-filled extended Hubbard models are π-periodic functions. For Hubbard models at fractional fillings Elow(k + 2kf ) = Elow(k), where 2kf = πn, and n is the number of electrons per unit cell. Moreover, if one of the ground states of the system is magnetic in the thermodynamic...

Cool stars at giant and supergiant evolutionary phases present low velocity and high density winds, responsible for the observed high mass-loss rates. Although presenting high luminosities, radiation pressure on dust particles is not sufficient to explain the wind acceleration process. Among the possible solutions to this still unsolved problem, Alfvén waves are, probably, the most interesting ...

In order to predict the interior noise of the automobile in the low and middle frequency band in the design and development stage, the hybrid FE-SEA model of an automobile was created using hybrid FE-SEA method. The modal density was calculated using analytical method and finite element method; the damping loss factors of the structural and acoustic cavity subsystems were also calculated with a...