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Grid connected photovoltaic (PV) systems are becoming increasingly attractive as a generation alternative due to new developments in technologies, environmental concerns and transmission congestion management. Usually the energy storage system is used to store the excess power generated during off-peak hours and to return it to the system when power from PV is not enough for the system or generation...
The Mellin transform (MT) is a form of a signal representation similar to Fourier transform (FT) which has been widely used in signal processing owing to its distinct properties like scale invariance. In this work, a 2D form of MT which is termed as 2D discrete Mellin transform (DMT) is introduced. The paper also proposes an area efficient, power aware and multiplier less VLSI architecture for 2D...
To get the maximum performance of stepper motor, different types of improvement and work has been done. In this work, open loop control of stepper motor is considered under general purpose (Windows), Soft (Linux) and hard (RT-Linux) real-time operating systems. We have used the same controller program to operate the stepper motor in different operating system under multitasking environment. The data...
The high performance fighter aircraft achieves a high angle of attack (up to 90??) and superb maneuverability because of the presence of leading edge flaps. In this paper we make an attempt to achieve reconfigurable control of this high performance fighter aircraft during auto-landing[1], using Extended Minimal Resource Allocating Network (EMRAN) augmented controller [2] with additional faults and...
As the Internet is rapidly growing and its popularity increases, users tend to use creative, time-conservative, entertained and economical technologies. Real-time applications such as online gaming, voice and video applications are becoming more popular. Research effort to improve scheduling mechanisms in routers is currently given less attention by network researchers. This trend is far behind in...
The objective of the research is to review the underlying principles based on performance in the health care sector. Performance indicators such as efficiency, acceptability, equity and quality are some of the measures considered. The research demonstrates the use of emerging technology (e.g., RFID - Radio Frequency Identification) to reduce health care costs and also facilitate the automating and...
This paper introduces a method to monitor power quality in a large 33 kV distribution network with minimal power quality recorders. This is achieved by using an intelligent driven application which is pseudo-measurement based, to approximate the bus voltages and currents at various busses in the network. Bus impedance matrix is manipulated by rewriting the node-voltage equations for an n-bus power...
HCF controlled channel access (HCCA), defined in the IEEE 802.11e document, provides a sample scheduler to allocate transmission opportunity (TXOP) to QoS-aware stations (QSTAs). Since the calculation of TXOP duration is based on mean data rate, it is efficient for constant bit rate (CBR) traffic. For variable bit rate (VBR) traffic, however, delay bound of some admitted traffic flows may be violated...
In order for the base station to respond quickly and efficiently to the uplink bandwidth request in broadband wireless access (BWA) networks using time-division duplex (TDD), a dual feedback control algorithm has recently been proposed. In this algorithm the bandwidth request is adjusted in accordance with both the length of the backlogged queue and the mismatch between packet arrival and service...
In this paper, an efficient multi-scale level set method is proposed to track a non-rigid object contour in real time. The proposed algorithm consists of two cycles which are carried out in different scale domains. In the first cycle on the coarse scale, the algorithm evolves the contour depending on the observed data. In the other cycle on the fine scale, the smoothness regularization is imposed...
This paper investigates a ARM and FPGA-based hybrid-processors real-time embedded Linux platform. This platform is designed as a general purpose embedded system that can be fitted into a number of applications such as digital controller, embedded web server or base station in wireless sensor networks. However, its hybrid-processors feature makes it a perfect experimental platform for scientific research...
Long Term Evolution (LTE) has being standardized by the 3rd generation partnership project (3GPP) as the evolution of WCDMA. Different from the conventional mobile communication technologies that deliver voice traffic through circuit switched networks, in LTE, all kinds of traffic are transferred through packet switched networks based on Internet Protocol (IP). In order to provide Quality of Service...
A new addressing protocol, TTDA (two-tier dynamic addressing protocol), is proposed for cluster-based wireless sensor networks in this paper. Two-tier address assignment is adopted in TTDA, in which the sink node assigns addresses for the cluster heads using Huffman coding to reduce energy consumption by allocating shorter addresses for nodes far from sink, and the cluster head nodes assign addresses...
Over past few years, the studies of cultured neuronal networks have opened up avenues for understanding the ion channels, receptor molecules, and synaptic plasticity that may form the basis of learning and memory. The hippocampal neurons from rats are dissociated and cultured on a surface containing a grid of 64 electrodes. The signals from these 64 electrodes are acquired using a fast data acquisition...
The huge coverage space of IPv6 addresses and providing guaranteed support for the ever increasing customer demand, results in the dealing with bigger packet header-size compared to the payload-size especially in some real time video and audio applications, consequently more bandwidth is wasting. Using the advantages of MPLS with IPv6 is still one of the migration challenges at the backbone. Payload...
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