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Volume-1 Issue-1

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Volume-1 Issue-1, December 2013, ISSN: 2347-6389 (Online)
Published By: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd.

Page No.



H. S. Mohapatra, A. Chatterjee, Pramod Kumar

Paper Title:

New Generation Application of Polypropylene Fibre

Abstract: In recent years, polypropylene (PP) is one of the most important and fastest growing polymers currently produced. And it is also a major synthetic material for textile and composite industry. A major virtue of polypropylene is its ability to be used in a wide range of fibrous forms. Fibrous forms of polypropylene include staple, bicomponent staple, monofilament, multifilament, slit film yarns, slit-fibrillated film yarns, nonwovens, composites for low velocity impact etc. Here in this article applications of polypropylene in the field of geotextiles, filtration, electrical, flame retardant, automobiles, disposable diapers, hospital/medical care, and protective clothing etc. Also here an attempt has been made to summerize the history and various application of polypropylene fibre.

Polypropylene fibre, Ziggler-Natta catalyst, Metalocene catalyst, impact prperties, Filter, Nonwovens.

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B. Praveen Kumar, D. Vishnu Vardhan

Paper Title:

Performance of Decision Feedback Equalizer over Frequency Selective Fading Channel in W-CDMA Systems

Abstract: The CDMA systems provide the greater capacity in wireless communication environment. But a major obstacle for this is multipath fading which causes inter symbol interference (ISI). The conventional sub optimum receiver consisting of a bank of matched filters is often inefficient because interference is treated as noise. The device used to combat with ISI is named as equalizer. Among linear and non linear equalizers, non linear equalizer outperforms over linear equalizers. Here decision feedback equalizer is non linear equalizer. This paper considers a non linear equalizer such as decision feedback equalizer (DFE) to mitigate inter symbol interference (ISI) in code division multiple access (CDMA) systems.

Feed-forward and feedback filters, linear adaptive transversal equalizer (LTE), zero-forcing equalizer, direct sequence code division multiple access (DS-CDMA), and correlation.

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