Execution of complex workflows is one of many applications of Peer-to-Peer (P2P) networks. Sustaining complex workflows in a dynamic P2P network requires adaptation when hosts involved in the workflow lose network connectivity. Adaptation of complex workflows without centralised monitoring and control is a challenge, and is often limited to instance replacement. If requirements are given on the...

Study of the beam propagation behavior through oceanic media is a challenging subject. In this paper, based on generalized Collins integral, the mean irradiance profile of Gaussian laser beam propagation through ocean is investigated. Power In Special Bucket (PIB) is calculated. Using analytical expressions and calculating seawater transmission, the effects of absorption and scattering on beam ...

One approach to facilitate statistical multiplexing of bursty sources in ATM networks is dispersion of the traffic over independent paths. It has been shown within the literature that by dispersion of traffic over disjoint paths it is possible to increase the Quality of Service (QoS) (see e.g., (Maxemchuck, 1993), (Lee, 1993)). In multipath schemes without additional error control, the resultin...

Background: Lemon verbena (Lippia citriodora H.B.K.) is an aromatic and medicinal plant of family Verbenaceae, which cultivated in North region of Iran. Objective: Evaluation of phytochemical characters in Lippia citriodora H.B.K. plantlets affected by propagation methods (micro-propagation and stem cutting) cultivated in different soil type (peat moss and mixture soil). Methods: This study w...

roy adaptation model in hemodialysis patients: a mixed method research hassani p[1]*, otaghi m[2] received: 17 may, 2012 accepted: 13aug, 2012 abstractbackground & aims: ram is used in ersd patients. nurses play important role in their adaptation. the goal of the study is to explain the adaptive and ineffective responses of hemodialysis patients based on ram in qualitative part, and to compare ...

It was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. Some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (AP). It seems that some other types of mechanisms must be involved in AP propagation. In this article, we...

-The numerical properties of implementations of the cessing/systolic arrays and/or VLSI chiprecursive least-squares identification algorithm are of grea t implementation. importance for their continuous use in various adaptive schemes. Here we investigate how an error that is introduced at an (d) Programming investment required. arbitrary point in the algorithm propagates. It is shown that (e) ...

This paper discusses the problem of adaptive estimation of a univariate object like the value of a regression function at a given point or a linear functional in a linear inverse problem. We consider an adaptive procedure originated from Lepski [Theory Probab. Appl. 35 (1990) 454–466.] that selects in a data-driven way one estimate out of a given class of estimates ordered by their variability....