RFID Technology In Healthcare

RFID Technology in Healthcare

Abstract:- The RFID technology is a growing phenomenon among separate automated identification technologies. As a technology, it is used from the early 1940's, but just in the last decade, the IT (Information Technology) community and the healthcare sector have been taking more action on studying and developing the technology to correspond their requirements and needs. In this paper, we represent a short overview of the RFID technology in healthcare. We will focus on the technology itself, how it is used in different parts of healthcare and what kind of results have been found.Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics.

Author:-Lahtela, A.;
Dept. of Comput. Sci., Univ. of Kuopio, Kuopio, Finland
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Full Control Of A Quadrotor

Full Control Of A Quadrotor
Abstract:- The research on autonomous miniature flying robots has intensified considerably thanks to the recent growth of civil and military interest in unmanned aerial vehicles (UAV). This paper summarizes the final results of the modeling and control parts of OS4 project, which focused on design and control of a quadrotor.It introduces a simulation model which takes into account the variation of the aerodynamical coefficients due to vehicle motion. The control parameters found with this model are successfully used on the helicopter without re-tuning. The last part of this paper describes the control approach (integral backstepping) and the scheme we propose for full control of quadrotors (attitude, altitude and position). Finally, the results of autonomous take-off, hover, landing and collision avoidance are presented. Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics .
Author:-Bouabdallah, S. Siegwart, R.
ETH Zurich, Zurich
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Adaptive Inverse Multiplexing For Wide-Area Wireless Networks

Adaptive Inverse Multiplexing For Wide-Area Wireless Networks

Abstract:-The limited bandwidth of current wide-area wireless access networks (WWANs) is often insufficient for demanding applications, such as streaming audio or video, data mining applications, or high-resolution imaging. Inverse multiplexing is a standard application-transparent method used to provide higher end-to-end bandwidth by splitting traffic across multiple physical links, creating a single logical channel. While commonly used in ISDN and analog dialup installations, current implementations are designed for private links with stable channel characteristics. Unfortunately, most WWAN technologies use shared channels with highly variable link characteristics, including bandwidth, latency, and loss rates. This paper presents an adaptive inverse multiplexing scheme for WWAN environments, termed link quality balancing, which uses relative performance metrics to adjust traffic scheduling across bundled links. By exchanging loss rate information, we compute relative short-term available bandwidths for each link. We discuss the challenges of adaptation in a WWAN network, CDPD in particular, and present performance measurements of our current implementation of wide-area multi-link PPP (WAMP) for CDPD modems under both constant bit rate (CBR) and TCP loads.
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Author:-Snoeren, A.C.

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Design And Analysis Of A Portable High-Speed Clock Generator

Design and analysis of a portable high-speed clock generator

Abstract:-A new portable clock generator with full pull-in range and fast acquisition is presented in this paper, where it can be developed at hardware description language (HDL) to reduce design cycle as well as improve system-level integration simulation. In the proposed design, frequency tracking is performed by the “Prune-and-Search” algorithm, and the digital-controlled ring oscillator is constructed by CMOS standard cells. In order to reduce propagation delay of the loop divider, a novel structure is developed to provide a constant delay at any divider setting. In addition, input jitter can be isolated to avoid coupling by digital processing. Hence, the generated clock output becomes more clean and robust. Based on the proposed methodology, a test chip has been designed and verified on 0.6-μm CMOS process with frequency range of (360 ~ 800) MHz at 3.3 V and peak-to-peak jitter of less than 60 ps at 800 MHz/3.3 V. Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics .

Author:-Terng-Yin Hsu; Chung-Cheng Wang; Chen-Yi Lee


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Dynamic Search Algorithm in Unstructured Peer-to-Peer Networks

Dynamic Search Algorithm in Unstructured Peer-to-Peer Networks

Abstract:-
Designing efficient search algorithms is a key challenge in unstructured peer-to-peer networks. Flooding and random walk (RW) are two typical search algorithms. Flooding searches aggressively and covers the most nodes. However, it generates a large amount of query messages and, thus, does not scale. On the contrary, RW searches conservatively. It only generates a fixed amount of query messages at each hop but would take longer search time. We propose the dynamic search (DS) algorithm, which is a generalization of flooding and RW. DS takes advantage of various contexts under which each previous search algorithm performs well. It resembles flooding for short-term search and RW for long-term search. Moreover, DS could be further combined with knowledge-based search mechanisms to improve the search performance. We analyze the performance of DS based on some performance metrics including the success rate, search time, query hits, query messages, query efficiency, and search efficiency. Numerical results show that DS provides a good tradeoff between search performance and cost. On average, DS performs about 25 times better than flooding and 58 times better than RW in power-law graphs, and about 186 times better than flooding and 120 times better than RW in bimodal topologies. Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics .

Author:-Tsungnan Lin Pochiang Lin Hsinping Wang Chiahung Chen
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Design of Traffic Lights Controlling System Based on PLC and Configuration Technology

Design of Traffic Lights Controlling System Based on PLC and Configuration Technology

Abstract:-
A kind of traffic lights controlling system by using PLC was designed, and the automatic control of the traffic lights was performed by software. In the system, the original relay wiring was replaced by the program, and the hardware and software resources of PLC were used reasonably. The normally running and emergency transport were introduced in detail, and that the emergencies from the east-west and from the south-north can interlock. The traffic lights signal system was displayed with two seven-segment digital tubes in countdown order; meanwhile the wiring of hardware and PLC ladder diagram was discussed in details. The remote monitoring system of traffic lights at the crossroads was designed with configuration software MCGS, which monitored traffic lights in real-time and improved the reliability greatly. At the same time, we can change the states of the traffic lights by the configuration picture. Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics .

Author:- Liu Yang; Chen XianFeng;


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Feature Selection for MLP Neural Network: The Use of Random Permutation of Probabilistic Outputs

Feature Selection for MLP Neural Network: The Use of Random Permutation of Probabilistic Outputs

Abstract

This paper presents a new wrapper-based feature selection method for multilayer perceptron (MLP) neural networks. It uses a feature ranking criterion to measure the importance of a feature by computing the aggregate difference, over the feature space, of the probabilistic outputs of the MLP with and without the feature. Thus, a score of importance with respect to every feature can be provided using this criterion. Based on the numerical experiments on several artificial and real-world data sets, the proposed method performs, in general, better than several selected feature selection methods for MLP, particularly when the data set is sparse or has many redundant features. In addition, as a wrapper-based approach, the computational cost for the proposed method is modest. Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics .
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Improvement Of The Orthogonal Code Convolution Capabilities Using FPGA Implementation

Improvement of the orthogonal code convolution capabilities using FPGA implementation

Abstarct:

When data is stored, compressed, or communicated through a media such as cable or air, sources of noise and other parameters such as EMI, crosstalk, and distance can considerably affect the reliability of these data. Error detection and correction techniques are therefore required. Orthogonal Code is one of the codes that can detect errors and correct corrupted data. An n-bit orthogonal code has n/2 is and n/2 0s. In a previous work these properties have been exploited to detect and correct errors. In this paper we present a new methodology to enhance error detection capabilities of the orthogonal code. The technique was implemented experimentally using field programmable gate arrays (FPGA). The results show that the proposed technique improves the detection capabilities of the orthogonal code by approximately 50%, resulting in 99.9% error detection, and corrects as predicted up to (n/4-1) bits of error in the received impaired code with bandwidth efficiency.
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Regenerative Braking By Electric Hybrid Vehicles Using Super Capacitor And Power Splitting Generator

Regenerative Braking By Electric Hybrid Vehicles Using Super Capacitor And
Power Splitting Generator

Abstract:
Experimental electric hybrid car drive of the small power was implemented in the laboratory of Josef Bozek Research Center of Engine and Automotive Technology at the Technical University in Prague. The output is 7.5 kW, 0 - 6000 min-' . The super capacitor as a peak energy storage has lOOF, 56V and 400 A. It is able to accept the kinetic energy during breaking the vehicle of the mass 1500kg from the velocity 60km/hour and regenerate it during next speeding up. The laboratory measurements during regeneration are published in the paper.
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Author:Zdenek Cerovsky Pavel Mindl
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A Modeling Methodology for Real-Timemultimedia Operating Systems

A Modeling Methodology for Real-Timemultimedia Operating Systems

Real-time scheduling theory attempts to guarantee that a
real-time task set will always meet its deadlines. Historically,
there has existed a wide gap between real-time scheduling
theory and the reality of applying the theory to task sets
implemented via real-time operating systems (RTOSs). This
paper provides aftamwork to account for implementation
costs in real-time scheduling theory. In addition, an
engineering methodology that allows users and developers
to accurately model and evaluate RTOSs is presented. We
use this methodology to model three dinerent commercial
real-time operating systems that are being used in
multimedia applications. We show how to use the RTOS
scheduling models to evaluate the performance and design
of RTOSs. Subscribe to Complete IEEE Topics and Abstract by Email For more IEEE Topics .

Author :- Kevin A. Kettler, Daniel I. Katcher, anid Jay K. Strosnider'
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