Abstract The paper focuses on implementing the wall model developed by Manhart, in Reynolds Averaged Navier - Stokes (RANS) turbulence models used field of Computational Fluid Dynamics (CFD). This considers influence streamwise pressure gradient addition to existing usual CFD codes. In present work, two RANS numerical simulations are carried out using k-ω Shear Stress Transport (SST) an asymmet...

Vocal registers are generally assumed to be associated with the voice source, i.e. the pulsating transglottal airflow. The waveform of this airflow was analysed by inverse filtering in professional singers, four counter tenors, five tenors, and four baritones singing the syllable [pae:] in soft, middle, and loud voice in modal and falsetto/counter tenor register. Subglottal pressure, estimated ...

The focus of this paper is on sex and videogames, seeking to provide a counterweight to the sensationalist treatment of the topic within the popular press. The author argues that there is surprisingly little explicit sexual imagery in games and asks what accounts for its disproportionate absence. An account is given of the way that the interactive nature of games which do include sex either in ...

A self-pulsating laser diode under external drive shows the nonlinear dynamical effects of two competing frequencies. One can establish a route to chaos by increasing the modulation current. However, when the modulation frequency is varied, the chaotic state is suddenly destroyed at the harmonic frequencies of the self-pulsating frequency. This approach therefore offers a simple chaotic light s...

The first sign of excysting Colpoda cucullus cells is the initiation of the pulsation of a contractile vacuole, which is then replaced by a non-pulsating vacuole (excystment vacuole) that continues to expand and finally ruptures the outermost cyst wall (ectocyst) due to inner pressure. A ciliate surrounded by flexible membranes (endocyst) thus emerges. The osmolarity of the excysting cells is e...