In order to achieve high throughput and low average delay in computer network, it is necessary to stabilize the queue length and avoid oscillation or chaos phenomenon. In this paper, based on Adaptive Random Early Detection ARED , an improved algorithm is proposed, which dynamically changes the range of maximum drop probability pmax according to different network scenarios and adjusts pmax to l...

We (analytically) calculate the energy spectrum corresponding to various experimental and numerical turbulence data analyzed by Benzi et al. [1]. We find two bottleneck phenomena: While the local scaling exponent ζr(r) of the structure function decreases monotonically, the local scaling exponent ζp(p) of the corresponding spectrum has a minimum of ζp(pmin) ≈ 0.45 at pmin ≈ (10η) and a maximum o...

The purpose of this paper is to exhibit a quantum network phenomenon—the anti-core—that goes against the classical network concept of congestion core. Classical networks idealized as infinite, Gromov hyperbolic spaces with least-cost path routing (and subject to a technical condition on the Gromov boundary) have a congestion core, defined as a subnetwork that routing paths have a high probabili...

We consider the problem of state-space reduction for nondeterministic weakly-hierarchical visibly pushdown automata (Vpa). Vpa recognize a robust and algorithmically tractable fragment of context-free languages that is natural for modeling programs. We define an equivalence relation that is sufficient for language-preserving quotienting of Vpa. Our definition allows to merge states that have di...

We calculate the thermochemical equilibrium of the diffuse interstellar medium, including ionization by a photon flux Fν from neutrino decay. The main heating mechanism considered is photoelectrons from grains and PAHs. For the studied range of Fν values, there always exists two regions of stability (a warm and a cold phase) that can coexist in equilibrium if the thermal interstellar pressure i...

Abstract Purpose Models of appetite control have been largely based on negative feedback from gut and adipose signaling to central centers. However, contemporary models posit that fat-free mass (FFM) or the energy demand FFM [i.e., resting metabolic rate (RMR)] may play a primary role in motivational drive for food intake (i.e., reinforcement). The relative reinforcing value (RRV ) is associate...

Abstract: Response Surface Methodology (RSM) is introduced to optimize the control rod positions in a pressurized water reactor (PWR) core. The widely used 3D-IAEA benchmark problem is selected as the typical PWR core and the neutron flux field is solved. Besides, some additional thermal parameters are assumed to obtain the temperature distribution. Then the total and local entropy production i...

Much of the interstellar medium in disk galaxies is in the form of neutral atomic hydrogen, H I. This gas can be in thermal equilibrium at relatively low temperatures, T < ∼ 300 K (the cold neutral medium, or CNM) or at temperatures somewhat less than 10 K (the warm neutral medium, or WNM). These two phases can coexist over a narrow range of pressures, Pmin ≤ P ≤ Pmax. We determine Pmin and Pma...

We present temperature-dependent measurements and modeling for a thickness series of hydrogenated amorphous silicon nip solar cells. The comparison indicates that the maximum power density PMAX from the as-deposited cells has achieved the hole-mobility limit established by valence bandtail trapping, and PMAX is thus not significantly limited by intrinsic-layer dangling bonds or by the doped lay...

The present study was designed to compare the effect of racial variations on shortand incremental maximal exercises in sedentary men whites (WT) and blacks (BT) Tunisian and South African (SA). In a randomized order, thirty-six physically sedentary men including 12 BT, 12 WT, and 12 SA were asked to perform a force-velocity (i.e., determination of maximal power (Pmax), F0, and V0) and a treadmi...