With the increase in thermal power capacity, ultra supercritical units have become the mainstream of power industry. At the same time, with the improvement of the steam parameters and the lengthening of shafting, the production of steam flow excited vibration is frequent in the ultra supercritical units, which may seriously affect the reliability of the unit. This paper has taken steam flow exc...

Background Post-occlusive reactive hyperaemia (PORH) is a measurement of the vasodilatory capacity of the microvasculature that is associated with cardiovascular disease, peripheral arterial disease and foot ulceration. Reliability of its measurement in the toe for clinical and research purposes has not been adequately assessed. This study assesses both the intra and inter-tester reliability of...

This paper describes how MEADEP, a system level dependability prediction tool, and CASRE, a software reliability growth prediction tool can be used together to predict system reliability (probability of failure in a given time interval), availability (proportion of time service is available), and performability (reward-weighted availability) for a. The system includes COTS hardware, COTS softwa...

In many businesses, LANs have displaced older, paper-based methods of doing work, and these organizations now depend on the reliability and availability of their computer networks for the continuity and efficiency of daily operations. Reliability refers to a LAN's capacity to operate despite failures in communications links and equipment. Availability is a measure of performance; it refers to t...

Using Micro-Grid (MG) as energy sources changes the reliability of distribution power systems. This paper studies the effects of MG on the reliability of a distribution power system. The method is based on the value-based method for a MG located in Iran. The obtained results show that when the MG capacity changes, then the reliability of the power system varies non-linear. Therefore, the optima...

accurate calculation of reliability index is very important for the reliability analysis of structures. in some limit state functions with nonlinear characteristic and several local optimum design points, the computational reliability methods may not appropriately determine the failure probability, and iterative reliability approaches may be converged to local optimum design points. in this pap...

A reliability evaluation module is presented for study of WDM network reliability. In this module, WDM networks are assumed to consist of three kinds of network elements nodes, links and wavelength channelrelated elements. And a network performance index – network ‘function value’, was introduced here as a quantitative representation of working-state of WDM network under certain link capacity a...