Over the past few years we have witnessed steady progress toward convergence in communications. We believe we are now witnessing convergence beyond just media transport. Further, abstract application level signaling technologies are poised for takeoff and will serve as the unifying fabric for multi-dimensional convergence. Our research shows that such a signaling mechanism known as “presence”, ...

In this study, we analyzed the relationship between ground reaction force (GRF) and both leg kinetics in kicking pullovers, with aim of clarifying mechanics techniques for acquiring vertical GRF moment single-leg takeoffs aerial rotation. applied to support foot kinematics were recorded takeoff phase successful pullovers by 11 adult males. Using a 12-segment, sagittal-plane rigid body link mode...

In this paper we study image based visual servo (IBVS) control of a four rotor vertical takeoff and landing (VTOL) craft known as an X4-fEyer. The approach taken is tailored to planar visual targets and is based on a reformulation and extension of 2 2 0 image-based visual servo design [14, 11 to the control of dynamic under-actuated systems. Exponential stability of the closed loop system is pr...

This brief paper presents a symbolic dynamicsbased method for detection of incipient faults in gas turbine engines. The underlying algorithms for fault detection and classification are built upon the recently reported work on symbolic dynamic filtering. In particular, Markov model-based analysis of quasi-stationary steady-state time series is extended to analysis of transient time series during...

The major function of the approach and hurdle in springboard dives is to establish favorable conditions for the takeoff (board depression and recoil) that follows. Recently Boda (1996) drew attention to the fact that nontraditional techniques were being employed in an attempt to increase dive height. These techniques involve introducing a substantial period of flight immediately prior to hurdle...

Urban environments are time consuming, labor intensive and possibly dangerous to safe guard. Accomplishing tasks like bomb detection, search-andrescue and reconnaissance with aerial robots could save resources. This paper describes a prototype called CQAR: Closed Quarter Aerial Robot, which is capable of flying in and around buildings. The prototype was analytically designed to fly safely and s...

engine and airframe manufacturers for decades have cited the direct relationship between engine wear and high exhaust gas temperature (EGT) in recommending that operators use less than maximum takeoff thrust whenever possible. While the cost benefits of reduced-thrust takeoffs are thoroughly documented, the safety benefits are not as well understood. Thus, there is a common perception that usin...

An amended kinetic model for the self-assembly of empty capsids of brome mosaic virus is proposed. The model has been modified to account for a new feature in the assembly kinetics revealed by time-course light scattering experiments at higher temporal resolution than previously attempted. To be able to simulate the sharp takeoff from the initial lag phase to the growth phase in the kinetic cur...