Wave forces acting on a vertical cylinder at different locations slope beach in the near-shore region are investigated considering solitary waves as incoming waves. Based Reynolds-averaged Navier-Stokes equations and k-ε turbulence model, wave due to interaction between simulated analyzed with incident heights locations. The numerical results first compared previous theoretical experimental val...

wave prediction is useful for safety and effective management of vessel navigation or construction of offshore structures. since human activity mainly takes place in nearshore regions, accurate wave prediction is necessary there. however, nearshore waves are not easy to predict compared with ocean waves, because not only the waves but also the wind, which is the energy source of the waves, chan...

The hydraulic stability of rocks and other non-cohesive sediments is often described by so-called threshold conditions. These conditions describe the stability of the stones in terms of critical values of the velocity, wave height, or shear stress. The influence of fluid accelerations in most of these conventional design methods has been neglected or has been processed empirically. For various ...

I survey the first twenty-five years of economic change in the former communist countries after the fall of the Berlin Wall. While diverging sharply from one another, these countries have converged economically and politically towards their nearest neighbors outside the Soviet bloc. The typical country experienced a spurt of economic reform in the early 1990s, slowing dramatically from around 1...

Some investigations were made on the wave height and wave period of wind waves and swells, based on the data of .continuous observation of ocean waves with a self-registering wave gauge at Jogashima Island, Kanagawa Prefecture, Japan, duriug a year from September, 1951 to August, 1952, and the characteristics of variations of wave height and wave period and their relations to meteorological con...

The design of a ${W}$ -band traveling-wave tube (TWT) power amplifier based on groove gap waveguide (GW) slow-wave circuit is presented in this article. technology GW analyzed to aid the electromagnetic band gap-based structures (SWSs...

This study presents wave height distribution in terms of stem wave evolution phenomena on partially perforated wall structures through three-dimensional laboratory experiments. The plain and partially perforated walls were tested to understand their effects on the stem wave evolution under the monochromatic and random wave cases with the various wave conditions, incident angle (from 10 to 40 de...

Sea level determination via satellite altimetry is subject to numerous error sources. One of these is the sea state bias where changing surface wave conditions alter an altimeter’s estimate of mean sea level. Recent work suggests that present day methods for correcting this bias, based solely on wave and wind information from the altimeter, may be improved if additional surface gravity wave fie...