Retarded accelerations of the self-organized front that separates two steady states of a continuous bistable system are studied by considering the response of the “bistable” front (BF) to the step-like force of flexible steepness. The driven system is described by a nonlinear differential equation of reaction–diffusion type, with the rate function approximated by the linear pieces. The retarded...

Matrix tests are available for speech recognition testing in many languages. For an accurate measurement, a steep psychometric function of the speech materials is required. For existing tests, it would be beneficial if it were possible to further optimize the available materials by increasing the function's steepness. The objective is to show if the steepness of the psychometric function of an ...

[1] Current models of long-term river incision into bedrock suggest that the local rate of differential rock uplift should exert a primary control on the gradient of channel longitudinal profiles. However, discrimination of this effect from the influence of variations in substrate erodibility, sediment flux, precipitation, and transient changes in profile shape has proved difficult in practice....

Increasing the cost of in-situ or field tests to solve engineering problems, particularly water engineering, pushes researchers worldwide simulate different problems using small-scale physical modeling like soil erosion, hydraulic jump, flow, and underground water. This paper focuses on design, manufacturing, calibration 6 m tsunami simulator channel investigate wave behavior with time until it...

This paper presents a low loss and high selective lowpass filter which is implemented using suspended stripline (SSL) technology. The proposed structure is comprised of a 13th order generalized Chebyshev lowpass filter which enjoys integrated waveguide-to-SSL transitions. This filter is designed and fabricated to be used as lowpass channel of a U-band diplexer employed in frontend of a U-band d...

Many animal social structures are organized hierarchically, with some individuals monopolizing resources. Dominance hierarchies have received great attention from behavioural and evolutionary ecologists. There are many methods for inferring hierarchies from social interactions. Yet, there are no clear guidelines about how many observed dominance interactions (i.e. sampling effort) are necessary...

Accurate estimation of the actual nominal wake behind ship in waves is important for propeller designers when improving efficiency and minimizing cavitation. The present CFD study investigates fields Kriso Container Ship (KCS) regular with wavelength equal to length five different headings. sailing at design speed wave steepness 1/60. results show that studied waves, fraction fluctuate up 39% m...

Irregular, unidirectional surface water waves incident on model ice in an tank are used as a physical of ocean wave interactions with sea ice. Results given for experiment consisting three tests, starting continuous cover and which the steepness increases between tests. The range from causing no breakup to full length cover. Temporal evolution edge, breaking front mean floe sizes reported. Floe...