We investigated the changes in the technical ability of force application/orientation against the ground vs. the physical capability of total force production after a multiple-set repeated sprints series. Twelve male physical education students familiar with sprint running performed four sets of five 6-s sprints (24s of passive rest between sprints, 3min between sets). Sprints were performed fr...

The starting point of this work is a biologically inspired model of a worm-like locomotion system (WLLS). The mechanical model comprises discrete mass points connected by viscoelastic force actuators. Ground contact is constituted by ideal spikes which act as constraint forces, preventing backward motion for each mass point equipped with them. The distances between each two consecutive mass poi...

Air Traffic Flow Management (ATFM) regulations, such as ground holdings, are often cancelled before their initially planned ending time. This early cancellation leads to an unnecessary ground delay and a misuse of airport or airspace resources. In previous publications, the authors have suggested a speed reduction strategy aiming at splitting the assigned ATFM delay between ground delay and air...

Acoustic Atmospheric Tomography provides a unique way to measure temperature and wind velocity fields in a slice or volume of atmosphere. There are many applications for these measurements, including atmospheric research, weather forecasting, pollution studies, agricultural monitoring etc. The technique discussed in this paper makes use of an Unmanned Aerial Vehicle that is flown over an array ...

Abstract—Ground traffic optimization is a major issue of air traffic management: optimal ground circulation could decrease flight delays and consequently decrease costs and increase passenger wellness. This paper proposes a planning algorithm for ground traffic based on contract reservation. This algorithm is iterative: it plans aircraft itinerary one after the other. A first version is describ...

Recent technology trends have emphasized low power, single supply operation. The LT1016, although capable of such operation, does not include ground in its input range. As such, it must be biased into its operating common mode range for practical single supply use. A new device, the LT1394, maintains the speed and application civility of its predecessor while including ground in its input opera...

Noise coupling on the power distribution networks (PDN) or between PDN and signal traces is becoming one of the main challenges in designing above GHz high-speed digital circuits. Developing an efficient and accurate modeling method is essential to understand the noise coupling mechanism and then solve the problem afterwards. In addition, development of new noise mitigation technology is also i...

Seeking to develop a simple ambulatory test of maximal aerobic power (VO(2 max)), we hypothesized that the ratio of inverse foot-ground contact time (1/t(c)) to heart rate (HR) during steady-speed running would accurately predict VO(2 max). Given the direct relationship between 1/t(c) and mass-specific O(2) uptake during running, the ratio 1/t(c). HR should reflect mass-specific O(2) pulse and,...