The frequency characteristics of free surface elevation time histories shallow-water sloshing in a three-dimensional rectangular tank is presented. numerical model for motion uses an accurate velocity potential Boussinesq-type equation. A particular solution adopted to express the external excitations and linear damping term introduced replace friction effect produced by walls. excitation ampli...

We measured the time spent in monocular viewing during inspection of their own mirror images in females of three species of fish (Xenotoca eiseni, Gambusia holbrooki and Xenopoecilus sarasinorum) using a rectangular tank in which animals could observe their own reflections in two mirrors positioned along the major walls, and in females of five species of fish (X. eiseni, G. holbrooki, X. sarasi...

A well-defined condition-monitoring for power transformers is key to implementing a correct condition-based maintenance (CBM). In this regard, partial discharges (PD) measurement and its analysis allows to carry out on-line maintenance following the standards IEC-60270 and IEC-60076. However, new PD measurements techniques, such as acoustics or electromagnetic (EM) acquisitions using ultra-high...

investigation of projectiles penetration phenomenon has been carried out in non-cohesive soil (sand) targets under dry, saturated and compacted conditions. analytical studies have been performed on the linear and non-linear soil models to obtain penetration depth formulae for ogival nose projectile and the results are verified by experimental studies. in present work, three ogival nose projecti...

I The article presents an analytical solution to the problem of small oscillations a liquid in rigid tank with elastic baffle. This mechanical system is model for various oil tankers. frequency transcendental equation obtained closed form under certain assumptions, left side which meromorphic function infinite number simple poles. result achieved by expanding homogeneous into series terms eigen...