in this study, the time-average velocity in the near wake of a two-dimensional notch-back car model that located in the wake of a trailer has been investigated. the present experiments were carried out in an open circuit low-speed wind tunnel made by fara sanjesh saba ltd, in iran and was used to simulate uniform air flow. results show: at the close spacing, time- average velocity profile at th...

The dynamical behaviour of the forced escape oscillator, which depends on the parameter values we considered, have been studied numerically using the techniques of phase portraits and Poincar'{e} sections. Also, we employed perturbation methods such as Lindstedt's method to obtain the frequency-amplitude relation of escape oscillator.

Recent experimental studies investigating the neuronal regulation of rapid eye movement (REM) sleep have identified mutually inhibitory synaptic projections among REM sleep-promoting (REM-on) and REM sleep-inhibiting (REM-off) neuronal populations that act to maintain the REM sleep state and control its onset and offset. The control mechanism of mutually inhibitory synaptic interactions mirrors...

A model and analysis of the human sleep/wake system is presented. The model is derived using the known neuronal groups, and their various projections, involved with sleep and wake. Inherent in the derivation is the existence of a slow time scale associated with homeostatic regulation, and a faster time scale associated with the dynamics within the sleep phase. A significant feature of the model...

Abstract. We study the calibration of Dynamic Wake Meandering (DWM) model using high-spatial- and high-temporal-resolution SpinnerLidar measurements wake field collected at Scaled Wind Farm Technology (SWiFT) facility located in Lubbock, Texas, USA. derive two-dimensional flow characteristics including deficit, turbulence, meandering from lidar observations under different atmospheric stability...