A modulation system is proposed that continuously adjusts its data rate in response to signal strength variations in a fading channel. The optimum variation of data rate with channel conditions is determined, and includes the effects of feedback channel time delay, the interval between rate changes, and restriction of the number of allowable rates. Application of these results to a full duplex ...

due to limitation of available water and soil resources in iran, the challenge of optimizing the utilization of these resources has become more significant. one of the solutions to the economic, planning and optimization of water use and achieve the optimum level of water use is associated with improved farming activities and this is the most important agricultural research needs. the study of ...

The xylanolytic extremely thermophilic bacterium Caldicellulosiruptor owensensis provides a promising platform for xylan utilization. In the present study, two novel xylanolytic enzymes, GH10 endo-β-1,4-xylanase (Coxyn A) and GH39 β-1,4-xylosidase (Coxyl A) encoded in one gene cluster of C.owensensis were heterogeneously expressed and biochemically characterized. The optimum temperature of the ...

This paper looks at how to optimize data collection from the wireless sensor nodes and analysis of this data for an efficient irrigation scheduling in order to optimize water usage. In this research we design a model system which integrates optimum node placement and data aggregation to see the combined effect on the efficiency of the wireless sensor network (WSN) that is in terms of latency, p...

This paper shows a configuration scheme for networks with WFQ schedulers. It guarantees maximum revenue for the service provider in the worst case of network congestion. We focus on best effort traffic and select those flows that maximize the benefit while keeping the network utilization high. We show that optimum network configuration is feasible based only on knowledge of the topology. Its de...

In this paper, we identify some impairments in the Voice over Internet Protocol (VoIP) networks and quantify the levels of voice quality. We propose an optimization model to maximize number of calls in low speed network for Rural Next Generation Network (R-NGN) while maintaining a minimum level of voice quality. The model is based-on Extended E-model to select parameters like voice coder, packe...

Polypropylene Fiber Reinforced Concrete is an embryonic construction material which can be described as a concrete having high mechanical strength, Stiffness and durability. By utilization of Polypropylene fibers in concrete not only optimum utilization of materials is achieved but also the cost reduction is achieved. This paper presents a comprehensive review on various aspects Polypropylene F...

The study intended to analyze the optimum solution to enhance utilization of Information and Communication Technology (ICT) services to the grassroots community in Dodoma Municipal Council (DMC) in Tanzania. The specific objectives of this study were to: identify the availability and use of ICT infrastructures for service delivery at grassroots level; identify possible Local Government Authorit...

Mesh Network Topological Optimization and Routing (MENTOR) algorithm is a low complexity and efficient partial mesh networks design algorithm. This study explores the relation between design parameters and performance of traffic assignment of MENTOR algorithm. We analyze 384 networks designed by MENTOR for 4 sets of 50 nodes each with equivalently distributed demand and randomly generated locat...