Advances in fabrication, modern sensor and communication technologies, and computer architecture have enabled a variety of new networked sensing and control applications. However, many difficulties are inherent with these systems, for example, the constrained communication and computation capabilities, and limited energy resources, which are frequently seen in a wireless sensor network. As a co...

Several recent studies have reported the phenomenon of software aging, where the state of the system degrades with time due to exhaustion of operating system resources, data corruption and numerical error accumulation. This eventually leads to performance degradation or crash/hang failure of the software. In this paper, we propose a measurement-based performability model to estimate the rate of...

Time division duplex systems, in a convenient way, facilitates the implementation of asymmetrical links required to efficiently handle the increasingly asymmetric traffic offered by current and future wireless applications. If boundaries between uplink and downlink time-slots are not synchronized among cells, e.g. when different asymmetries are required in different cells, inter-base station (I...

The growing advance in wireless communications and electronics makes the development of low-cost and low-power sensors possible. These sensors are usually small in size and are able to communicate with other sensors in short distances wirelessly. A sensor network consists of a number of sensors which cooperates with one another to accomplish some tasks. In this paper, we address the problem of ...

Soil moisture plays a significant role in the global hydrological cycle, which is an important component of soil parameterization. Remote sensing one most methods used to estimate moisture. In this study, we developed new nonlinear Erf-BP neural network method establish soil-moisture-content-estimation model with integrated multiple-resource remote-sensing data from high-resolution, hyperspectr...

A modeling approach based upon the notions of thread spawning and maximum length probability density functions is presented. By using a data dependence graph, or alternatively, an available parallelism profile, probability density functions may be derived and used as input to a queuing system model that can predict required resources.. The accuracy of the model is measured by validation using p...

In this paper, we present a hybrid estimation framework (HEF) for multi-robot Cooperative Localization (CL) under time-varying, communication-bandwidth constraints. In the presence of severe communication constraints, robots can communicate only a quantized version of their analog measurements to the team. The HEF enables robots to process all available information, i.e., local analog measureme...

introduction: human resources development is one of the most important components of any organization and detecting important factors influencing human resources management plays an essential role in the success of the firms. in this study, we investigated different factors influencing human resources productivity of shiraz university of medical sciences staff. method: the present research was ...

In the past 15 years, stateless exploration, a collection of techniques for automated and systematic testing of concurrent programs, has experienced wide-spread adoption. As stateless exploration moves into practice, becoming part of testing infrastructures of large-scale system developers, new practical challenges are being identified. In this paper we address the problem of efficient allocati...