Numerical modelling of wave interaction with rock-armoured rubble mound breakwaters has been performed to study overtopping. The influences the slope angle, a berm in seaward slope, protruding crest wall, recurved parapet, and steepness have studied using validated CFD model (OpenFOAM). numerical confirms trends that observed physical tests while validity earlier developed guidelines examined o...

This report presents the results of authors' research on development a method for assessing earthquake-resistant steepness slope structures and experimental verification main provisions method. The internal external factors that directly affect stability oscillating are given. As an factor, strength deformation parameters soil in body considered, depending type soil, its granulometric mineralog...

In the 70’s, Nekhorochev proved that for an analytic nearly integrable Hamiltonian system, the action variables of the unperturbed Hamiltonian remain nearly constant over an exponentially long time with respect to the size of the perturbation, provided that the unperturbed Hamiltonian satisfies some generic transversality condition known as steepness. Using theorems of real subanalytic geometry...

This paper explores the effects of the surface density and concentration profiles of extra cellular matrix proteins on the migration of rat intestinal IEC-6 cells. Microfluidic devices were used to create linear, immobilized gradients of laminin. This study investigated both the impact of the steepness and local concentrations on the directedness of cell migration. The bulk concentrations of pr...

This paper investigates the wave transmission through artificial reefs utilised as low-crested breakwaters to mitigate coastal erosion and reduce energy. The study utilises DualSPHysics smoothed particle hydrodynamics (SPH) solver evaluate effectiveness of such structures. Wave coefficients were computed for various reef configurations conditions. Results indicate that shifted configuration pro...

Abstract An experimental study is presented on the non-Gaussian statistics of random unidirectional laboratory wave fields described by JONSWAP spectra. Relationships between statistical parameters indicative occurrence large-amplitude waves are discussed in context initial steepness combined with effect spectral peakedness. The spatial evolution relevant and features also considered. It demons...

Methods to speed up learning in back propagation and to optimize the network architecture have been recently studied. This paper shows how adaptation of the steepness of the sigmoids during learning treats these two topics in a common framework. The adaptation of the steepness of the sigmoids is obtained by gradient descent. The resulting learning dynamics can be simulated by a standard network...

Nonlinear evolution of narrow-banded unidirectional gravity wave trains along wave flume is studied both experimentally and numerically. The spatial version of the Zakharov equation serves as the theoretical model. The frequency domains of spatially linearly unstable disturbances to a monochromatic wave, as well as the frequencies of the most linearly unstable modes are determined theoretically...

Internal waves generated by tides in the Celtic Sea were investigated on the basis of in-situ data collected at the continental slope in July 2012, and theoretically using a weakly nonlinear theory and the Massachusetts Institute of Technology general circulation model. It was found that internal solitary waves generated over the shelf break and propagated seaward did not survive in the course ...

Increasing arc pressure by tens of times with fine pouring tube, a positive shock wave the entering closed space thin tube (electric recoil wave). The electric is 8 to 23 than that wave. Since has more wave, and their directions are opposite, poring driven away from channel completely emptying large scale truncation formed. Therefore, interrupts lightning current, recombusts form new backwash r...