We show by computational solution of the incompressible Navier-Stokes equations with friction force boundary conditions, that the classical inviscid circulation theory by Kutta-Zhukovsky for lift of a wing and laminar viscous boundary layer theory by Prandtl for drag, which have dominated 20th century flight mechanics, do not correctly describe the real turbulent airflow around a wing. We show ...

There is a strong trend at hand toward less dramatic facial rejuvenation surgery. Most of the authors' patients want a cosmetic improvement but not at the cost of prolonged disfigurement or a high risk of complications. In 1999, a very simple but effective rhytidectomy technique, termed an S-lift, was described in the literature and was adopted by the authors. Its basic principle is the suspens...

This paper addresses issues related to cracking and blisters in deposited films encountered a lift-off process with electron beam evaporation bilayer PMMA resist system. The impact of charged particles, i.e. electrons ions, is investigated using an chamber equipped ring-magnets plate electrode placed front the sample. By replacing hollow cylinder, modified setup utilizing passive components all...

In this paper we proposed a modeling method of the electrode lift controlling plant of a n ultra high power electric furnace and verified the accuracy of the proposed model by simulation an d field test. Keyword: ultra high power (UHP) electric furnace, electric lift device, electric lift control

BACKGROUND Physiological and psychophysical studies of the effects of lifting frequency have focused on whole-body measurements of fatigue or subjective acceptance of the task and have not considered how spine loads may change as a function of lift frequency or lift time exposure. Our understanding of biomechanical spine loading has been extrapolated from short lifting bouts to the entire work ...