We consider the problem of constructing a multicast tree that connects a group of source nodes to a group of sink nodes (receivers) and minimizes the maximum end-to-end delay between any pair of source/sink nodes. This is known as the minimum eccentricity multicast tree problem, and is directly related to the quality of service requirements of real multipoint applications. We deal directly with...

This paper presents adaptive algorithms to compensate roll eccentricity perturbations in web transport systems. Roll eccentricity creates tension disturbances whose frequencies may be slowly varying due to the change of radius of the roll. The magnitude and phase of these perturbations are estimated through an adaptive algorithm that cancels the effect of these perturbations. The ability of the...

ABSTRACT We analyse how drag forces modify the orbits of objects moving through extended gaseous distributions. consider hydrodynamic (surface area) and dynamical friction (gravitational) drive evolution orbital eccentricity. While cause eccentric to become more circular, can eccentric. develop a semi-analytic model that accurately predicts these changes by comparing total work torque applied o...

PURPOSE Lipoprotein-associated phospholipase A₂ (Lp-PLA₂) is an inflammatory enzyme expressed in atherosclerotic plaques. We investigated the association of circulating Lp-PLA₂ with characteristics of vulnerable coronary atherosclerotic plaques. MATERIALS AND METHODS We recruited 113 patients with either unstable angina (UA, n=59) and stable angina (SA, n=54) by coronary angiography. Thirty-s...

Let G be a connected graph. The eccentricity of path P, denoted by eccG(P), is the maximum distance from P to any vertex in G. In Central (CP) problem, our aim find minimum eccentricity. This problem was introduced Cockayne et al., 1981, study different centrality measures on graphs. They showed that CP can solved linear time trees, but it known NP-hard many classes graphs such as chordal bipar...

5 To be submitted to Paleoceanography. The accuracy of geologic chronologies can, in principle, be improved through 6 orbital tuning, the systematic adjustment of a chronology to bring the as-7 sociated record into greater alignment with an orbitally derived signal. It would 8 be useful to have a general test for the success of orbital tuning, and one pro-9 posal has been that eccentricity ough...

To investigate the relationship between reaction time (RT), stimulus intensity and visual field eccentricity. We generated frequency of seeing (FOS) curves and measured RTs by testing 10 perimetrically experienced normal subjects with a Humphrey perimeter controlled by a custom program. Subjects were tested from 10 degrees to 50 degrees eccentricity along the nasal horizontal meridian in 10 deg...