please help me out to write a matlab program of medium line transmission line ....etc

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Seminar Report onAudio CAPTCHA: Existing solutions assessment and It’s Advancements
What are CAPTCHAs?
Completely Automated Public Test to Tell Computers and Humans Apart.
Web-based protection mechanisms
Only humans allowed to perform certain tasks
Opening E-mail accounts
Voting on-line, etc.
Prevent automated attacks by bots
To avoid eating up resources
To avoid biasing results, etc.
Most current systems - text-based.
Why there came a need for Captchas???
Preventing Comment Spam in Blogs. 
Protec ....etc

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The circuit presented here can beused for connecting two telephones in parallel and also as a2-line intercom.Usually a single telephone is connectedto a telephone line. If another telephoneis required at some distance, a parallelline is taken for connecting the othertelephone. In this simple parallel line operation,the main problem is loss of privacybesides interference from the otherphone. This problem is obviated in thecircuit presented here.Under normal condition, two telephones(telephone 1 and 2) can be usedas intercom while tel ....etc

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Evaluating Existing Audio CAPTCHAs and an Interface Optimized for Non-Visual Use




INTRODUCTION AND MOTIVATION

The goal of a CAPTCHA1 is to dierentiate humans
from automated agents by requesting the solution to a
problem that is easy for humans but dicult for com-
puters. CAPTCHAs are used to guard access to web re-
sources and, therefore, prevent automated agents


Making CAPTCHAs Accessible

Audio CAPTCHAs were introduced soon after their vi-
sual alterna ....etc

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Existing system SIMPLE DETAILS



In this project Network routers occupy a unique role in modern distributed systems. They are responsible for cooperatively shuttling packets amongst themselves in order to provide the illusion of a network with universal point-to-point connectivity. However, this illusion is shattered - as are implicit assumptions of availability, confidentiality, or integrity - when network routers are subverted to act in a malicious fashion. By manipulati ....etc

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Upgradation of Existing EHVAC Line by Composite AC-DC Transmission

H. Rahman



Abstract--


Recently proposed concept of simultaneous ac-dc power transmission enables the long EHV ac lines to be loaded close to their thermal limits. The conductors are allowed to carry certain amount of dc current superimposed on usual ac. This paper presents the power up gradation of existing EHV ac line corridor by converting it into composite ac-dc power transmission line. No alterations of conductors, insulator ....etc

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Abstract
Recently proposed concept of simultaneous ac-dc power transmission enables the long EHV ac lines to be loaded close to their thermal limits. The conductors are allowed to carry certain amount of dc current superimposed on usual ac. This paper presents the power up gradation of existing EHV ac line corridor by converting it into composite ac-dc power transmission line. No alterations of conductors, insulator strings or towers of the original line are needed. Simulation study is carried out on PSCAD/EMTDC software package. Ind ....etc

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I am Rajib Lochan Meher.I read the name of a electrical project like Eb (electrical) wireless billinng system through power line (230v ac line).I want to do this project.please send me the complete idea for doing this project.My Email id is [email protected]. ....etc

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Line Arresters InTransmission Line
Jithin Lal K
S7 E2 RN:220
College Of Engineering, Trivandrum
2007-11 batch





CONTENTS
1)Introduction
2)TLA Components
3)Types of TLA
4)Working of TLA
5)Arresters Location
6)Problems in Applications of TLA
7)Transverse Discharge
8)Experiments
9)Impulse Voltage Waveforms
10) Results
11)Minimum Distance
12)Conclusion


INTRODUCTION
Transmission Line Arresters (TLA)
Any arrester that is applied on the lines of a power syst ....etc

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INCREASING PENETRATION OF DISTRIBUTED
GENERATION IN EXISTING DISTRIBUTION
NETWORKS USING COORDINATED VOLTAGE

ABSTRACT
Connections of distributed generation (DG) to weak distribution networks often
experience voltage rise problems. The voltage rise caused by DG can be reduced
with passive methods such as increasing the conductor size but this can be quite
expensive. Active management of distribution networks can allow connection of
more DG into existing distribution networks and, consequently, reduce the connec-
tion ....etc

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