The pumping mechanism of the heart is pulsatile, so the heart generates pulsatile flow that enters into the compliant aorta in the form of pressure and flow waves. We hypothesized that there exists a specific heart rate at which the external left ventricular (LV) power is minimized. To test this hypothesis, we used a computational model to explore the effects of heart rate (HR) and aortic rigid...

A specification for the upper limit of the inspiratory resistance for inhalation-analgesia apparatus used in labour has been derived by considering the additional respiratory power required to overcome the apparatus resistance. It is recommended that the additional power required to inspire through the apparatus, with the ventilation occurring in mothers having analgesia, should not be greater ...

The input power requirements for accessing H-mode at low density and maintaining it during the density ramp in ITER is addressed by statistical means applied to the international H-mode threshold power database. Following the recent addition of new data, the improvement of existing data and the improvement of selection criteria, a revised scaling law that describes the threshold power required ...

NYSE and NASDAQ listed firms are required to have a majority of independent directors starting 2004. Since the regulation can weaken CEO influence over the board, affected CEOs may counter it by building a closely aligned team of top executives to strengthen their structural power. Using a differences-indifferences approach, we find that affected CEOs fill their executive suites with significan...

In this paper, a novel pre-compression rate-distortion optimization algorithm is proposed, which can reduce computation power and memory requirement of JPEG 2000 encoder. It can reduce the wasted computational power of the entropy coder (EBCOT Tier-1) and unnecessary memory requirement for the code-stream. Distortion and rate of coding passes are calculated and estimated before coding, and ther...

Predicting the tractive limitations of locomotion gears is of critical importance in a robotic vehicle system on natural terrain. In particular, it is imperative for an unmanned mobile robot to avoid getting stuck in loose soil to retain its mobility. From this perspective, this paper attempts to theoretically predict the limitations of a typical wheel in such loose soil based on traditional so...