In paper based financial messaging system, the messages are sent in defined formats duly signed by the authorized signatories. Paperless initiative and changes in the business practices have changed the authorization process. In electronic messaging, the messages are created, authenticated electronically and sent through electronic medium. Present technology facilitates data transmission with security integrity duly taking care of confidentiality and nonrepudiation of messages. Encryption and digital signature play a vital role in providing suc ....etc

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please, i have a seminar presentation on phytoremediation and i need a topic to write and present.
would be really happy for your assistance. thanks ....etc

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DIRECT DIGITAL RF MODULATOR:A MULTI-FUNCTION ARCHITECTURE FOR A SYSTEM-INDEPENDENT RADIO TRANSMITTER
Sarath Kumar P.K
Roll No:57
S7 E&C



CONTENTS
Introduction
Communication system
RF Systems
Direct conversion modulator
DDRF Modulator
Conclusion
References

INTRODUCTION
Increase in number of radio systems in portable devices
High signal bandwidth and narrow channel bandwidth
Need for low cost,low power and low complexity transmitter architecture
Need for ad ....etc

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In today's commercial environment, establishing a framework for the authentication of computer-based information requires a familiarity with concepts and professional skills from both the legal and computer security fields. Combining these two disciplines is not an easy task. Concepts from the information security field often correspond only loosely to concepts from the legal field, even in situations where the terminology is similar. For example, from the information security point of view, digital signature means the result of applying to ....etc

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please provided the ppt on Phytoremediation sewerage treatemnt plant ....etc

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Seminar Report On Submitted by:VIMAL V.B.
DEPARTMENT OF COMPUTER SCIENCE
COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
COCHIN “ 682022
2005
ABSTRACT
Fiber Channel is an ANSI interface that acts as like a general transport vehicle to simultaneously deliver the command sets of several existing interface protocols. Fiber Channel Arbitrated Loop is one topology used to connect two or more devices within the guidelines set by the ANSI standards. It supports both large and small data transfers, and can be used in systems ranging from s ....etc

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Phytoremediation, the use of plants to remediate environmental media, is being pursued as a new approach for the cleanup of contaminated soils and waters, including groundwater. It is the use of plants to partially or substantially remediate selected contaminants in soil, sludge, sediment, groundwater, surface water and wastewater. The word phytoremedition comes from the Greek word phyto meaning ?plant? and the Latin word remediare meaning ?to remedy?. It utilizes a variety of plant biological processes and the physical characteristics of plant ....etc

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Presented by:
Sreekanth.A


Abstract: Cryptography's aim is to construct schemes or protocols that can still accomplish certain tasks even in the presence of an adversary. A basic task in cryptography is to enable users to communicate securely over an insecure channel in a way that guarantees their transmissions' privacy and authenticity. Providing privacy and authenticity remains a central goal for cryptographic protocols, but the field has expanded to encompass many others, including e-voting, digital coins, ....etc

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Please provide ppt on phytoremediation not exceeding 30 slides which includes its definition, types,working, advantages, disadvantages,conclusion,examples etc ....etc

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Digital Signature

Abstract :

The authenticity of many legal, financial, and other documents is determined by the presence or absence of an authorized handwritten signature. The recipient of the signed document can verify the claimed identity of the sender using the signature. Also, if the sender later repudiates the contents of the document, then recipient can use the signature to prove the validity of the document.

With the computerized message systems replacing the physical transport of paper and ink documents, an effective s ....etc

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