Present project is designed using 8051 microcontroller to avoid railway accidents happening at unattended railway gates, if implemented in spirit. This project utilizes two powerful IR transmitters and two receivers; one pair of transmitter and receiver is fixed at up side (from where the train comes) at a level higher than a human being in exact alignment and similarly the other pair is fixed at down side of the train direction. Sensor activation time is so adjusted by calculating the time taken at a certain speed to cross at least one compart ....etc

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Introduction
LAN forms basis of all commercial,research,and data communication networks.Recently an increase in applications demand significantly higher band width. Ethernet is an easy to understand and extremely cost-effective technology. For these reasons, 98% of local area network (LAN) connections are now Ethernet based.
To meet this,high speed LAN types have been developed ,including a number of variations of basic ethernetLANs. CSMA/CD(carrier sense multiple access with collision detection) is used widely in ....etc

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MICROCONTROLLER BASED AUTOMATIC RAILWAY GATE CONTROL
Submitted by,
P.NAVEEN S.SUDHAKAR
ARULMIGU KALASALINGAM COLLEGE OF ENGINEERING KRISHNANKOVIL
ABSTRACT:
The objective of this paper is to provide an automatic railway gate at a levelcrossing replacing the gates operated by the gatekeeper. It deals with two things. Firstly, it deals with the reduction of time for which the gate is being kept closed. And secondly, to provide safety to the road users by reducing the accidents.
By the presently existing system once the train leaves t ....etc

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ABSTRACT
Free space optics ( FSO ) is a line-of-sight technology that currently enables optical transmission up to 2.5 Gbps of data, voice, and video communications through the air , allowing optical connectivity without deploying fiber optic cables or securing spectrum licenses. FSO system can carry full duplex data at giga bits per second rates over Metropolitan distances of a few city blocks of few kms. FSO, also known as optical wireless, overcomes this last-mile access bottleneck by sending high “b ....etc

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10 GIGABIT ETHERNET
A SEMINAR REPORT
Submitted by
VIKASH MISHRA
in partial fulfillment of requirement of the Degree
of
Bachelor of Technology (B.Tech)
in
COMPUTER SCIENCE AND ENGINEERING
SCHOOL OF ENGINEERING
COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
KOCHI- 682022
AUGUST 2008Page 2

DIVISION OF COMPUTER SCIENCE AND ENGINEERING
SCHOOL OF ENGINEERING
COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
KOCHI-682022
Certificate
Certified that this is a bonafide record of the seminar entitled
10 GIGABIT ETHERNET
Presented by the foll ....etc

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INTRODUCTION

From its origin more than 25 years ago, Ethernet has evolved to meet the increasing demands of packet-switched networks. Due to its proven low implementation cost, its known reliability, and relative simplicity of installation and maintenance, its popularity has grown to the point that today nearly all traffic on the Internet originates or ends with an Ethernet connection. Further, as the demand for ever-faster network speeds has grown, Ethernet has been adapted to handle these higher speeds and the concomi ....etc

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MICROCONTROLLER BASED AUTOMATIC RAILWAY GATE CONTROL
Submitted by,
P.NAVEEN S.SUDHAKAR
ARULMIGU KALASALINGAM COLLEGE OF ENGINEERING KRISHNANKOVIL
ABSTRACT:
The objective of this paper is to provide an automatic railway gate at a levelcrossing replacing the gates operated by the gatekeeper. It deals with two things. Firstly, it deals with the reduction of time for which the gate is being kept closed. And secondly, to provide safety to the road users by reducing the accidents.
By the presently existing system once the train leaves t ....etc

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MICROCONTROLLER BASED AUTOMATIC RAILWAY GATE CONTROL
Submitted by,
P.NAVEEN S.SUDHAKAR
ARULMIGU KALASALINGAM COLLEGE OF ENGINEERING KRISHNANKOVIL
ABSTRACT:
The objective of this paper is to provide an automatic railway gate at a levelcrossing replacing the gates operated by the gatekeeper. It deals with two things. Firstly, it deals with the reduction of time for which the gate is being kept closed. And secondly, to provide safety to the road users by reducing the accidents.
By the presently existing system once the train leaves t ....etc

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ABSTRACT
Electrodynamic (ED) tether is a long conducting wire extended from spacecraft. It has a strong potential for providing propellant less propulsion to spacecraft in low earth orbit. An electrodynamic Tether uses the same principle as electric motor in toys, appliances and computer disk drives. It works as a thruster, because a magnetic field exerts a force on a current carrying wire. The magnetic field is supplied by the earth. By properly controlled the forces generated by this electrodynamic tether can be used ....etc

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ABSTRACT

FORMULA ONE- The worldâ„¢s largest spectator sport. What makes it so good? Cars, Drivers and their experience and most of all, the race track which helps these high techniques cars zoom at an excess of 320 kmph safely with the minimum of injuries or zero injuries in case of a crash or an accident. These tracks with their high tech safety barriers and other safety features which go into the making of the track like the use of CSAS( Circuit And Safety Analysis System) and barrier crash test makes ....etc

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