ARE NATURAL FIBER COMPOSITES ENVIRONMENTALLY SUPERIOR TO GLASS FIBER REINFORCED COMPOSITES?
INTRODUCTION:-
• Natural fibers have been used to reinforce materials for
over 3,000 years.
• Many types of natural fibers have been investigated for
use in plastics .including , Flax, hemp, jute, straw,
wood fiber, rice husks,wheat,barley,oats .
• Natural fibers have the advantage that they are
renewable resources and have marketing appeal.
• Natural fibers are increasingly used in automotive a ....etc

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pls give details of fiber antennas for free space communicTION ....etc

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Microbend optical fiber sensor for high-spatial resolution measurement of strain distribution
Abstract:
A new optical fiber sensor system has been developed for measuring strain distribution. Microbend scattering process is used for the sensing of strain and high spatial resolution of 1m was achieved for both plastic and silica glass fiber. Keywords: Optical fiber sensor, strain distribution, microbending, plastic fiber, silica fiber, geo-textile,
1. ....etc

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i want ppt of differnce between optical &electrical bandwidth.
....etc

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Differentiated Bandwidth Allocation with TCP Protection in Core Routers


Abstract

Differentiated Services (DiffServ) networks categorize routers into edge routers and core routers.In core routers, one of the technological challenges is how to implement differentiated bandwidth allocation and TCP protection together with low complexity.We present an Active Queue Management (AQM) scheme called CHOKeW. A method is borrowed from a previous scheme, CHOKe, which draws a packet at random from the buffer, compares it with the arriving packet, a ....etc

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BANDWIDTH ESTIMATION FOR IEEE 802.11 BASED ADHOC NETWORK
Abstract: Since 2005, IEEE 802.11-based networks have been able to provide a certain level of quality of service (QoS) by the means of service differentiation, due to the IEEE 802.11e amendment. However, no mechanism or method has been standardized to accurately evaluate the amount of resources remaining on a given channel. Such an evaluation would, however, be a good asset for bandwidth-constrained applications. In multihop ad hoc networks, such evaluation becomes even more difficult. C ....etc

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Abstract—Dynamic Spectrum Access can enable a secondary user in a cognitive network to access unused spectrum, or whitespace, found between primary user transmissions in a wireless network. The key design objective for a secondary user access strategy is to “scavenge” the maximum amount of spatio-temporally fragmented whitespace while limiting the amount of disruption caused to the primary users. In this paper, we first measure and analyze the whitespace profiles of an 802.11 network (using ns-2 simulation) and a non-802.11 (CSMA)-based n ....etc

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This uses a novel method of speech compression and transmission. This method saves the transmission bandwidth required for the speech signal by a considerable amount. This scheme exploits the property of low pass nature of the speech signal. Also this method applies equally well for any signal, which is low pass in nature, speech being the more widely used in Real Time Communication, is highlighted here.

As per this method, the low pass signal (speech) at the transmitter is divided into set of packets, each containing, say N number of sample ....etc

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fiber antenna for fibre free communication ppts
....etc

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I am looking for fiber optic temperature measurement ppt ....etc

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