The Global Positioning System, usually called GPS,
The Global Positioning System, usually called GPS, is the only fully-functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing signals by radio to GPS receivers, allowing them to accurately determine their location (longitude, latitude, and altitude) in any weather, day or night, anywhere on Earth.

United States Department of Defense developed the system, officially named NAVSTAR GPS (Navigation Signal Timing and Ranging GPS), a ....etc

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PRESENTED BY:
Dr J Maiti


An Application of Structural Equation Modeling in Evaluating Accident/Injury Occurrences in Underground Coal Mines
Introduction
 The purpose of this presentation is to show how Structural Equation Modeling (SEM) can be applied to real life problem solving.
Stages in SEM
• Stage 1: Developing a Theoretically Based
Model
• Stage 2: Constructing a Path Diagram of Causal Relationships
– Elements of a Path Diagram
– Examples of Path Diagrams ....etc

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Peripheral Nerve Injury and Repair
Alisha Asif & Reshma Nair U
BT & BCE, MCET-Trivandrum



Abstract
Peripheral nerve injuries are common, and there is no easily available formula for successful treatment.
Incomplete injuries are most frequent. Seddon classified nerve injuries into three categories:
neurapraxia, axonotmesis, and neurotmesis. After complete axonal transection, the neuron undergoes a
number of degenerative processes, followed by at ....etc

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Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication. GSM is the name of a standardization group established in 1982 to create a common European mobile telephone standard that would formulate specifications for a pan-European mobile cellular radio system operating at 900 MHz. It is estimated that many countries outside of Europe will join the GSM partnership.Throughout the evolution of cellular telecommunications, various systems have been developed without the benefit of standardized s ....etc

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Global Issues: Ozone Depletion, Global Warming and Acid Rain

Introduction

Air pollution is exerting increasing impact on the environment. Humans have been altering the chemistry of the atmosphere on a global scale. These changes may:
Modify the global climate
Threaten the health of human beings
Create many environmental problems such as
Acid rain
Depletion of ozone layer
Global warming
Seriously upset the global ecosystem

What is ozone depletion?

Ozone is a highly reactive gas comprising ....etc

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Based on closed form expressions for the power frequency voltages and currents in a typical distribution network, the voltage regulation VR at any time point during the day could be evaluated. It will depend primarily on the network configuration, the daily load curve, the load density and its power factor as well as level of the reactive power compensation.

The computed at a certain time?t? can give a useful indicator for the voltage constancy over the network at that time point. The concept of ?Global Voltage Regulation? is introduced. Th ....etc

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The first stepping stone in migration path to third generation wireless mobile services (3G) is the General Packet Radio Services, GPRS, a packet-switched technology that delivers speeds of up to 115kbps. If GPRS is already in place, Enhanced Data rates for Global Evolution (EDGE) technology is most effective as the second stepping stone that gives a low impact migration. Only software upgrades and EDGE plug-in transceiver units are needed. The approach protects operators' investments by allowing them to reuse their existing network equipment a ....etc

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ADDING INTELLIGENCE TO INTERNET,
THE GLOBAL BRAIN
Abstract
The World Wide Web is a network of inter-connectivity that goes everywhere and follows its own intelligence. The advent of this newly emerging communication field around our planet has enabled citizens from all lifestyles to communicate globally via words, sounds and pictures “ inexpensively, person-to-person; and from the safety of their own homes and offices “ for the first time. Could tomorrow™s global brain allow uploading the human mind At p ....etc

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Overview

It is the traumatic injury to the brain as a result of a violent blow, shaking, or spinning. A brain concussion cans cause immediate and usually temporary impairment of brain function such as of thinking, vision, equilibrium and consciousness.

Although anyone can have a concussion, we will focus here purely for purposes of example on athletes who suffer a concussion. The considerations can be generalized to the general population of people with concussions of the brain.
Objective signs of concussion:

The signs of concussio ....etc

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This is a new technique for the protection of transmission systems by using the global positioning system (GPS) and fault generated transients. In this scheme the relay contains a fault transient detection system together with a communication unit, which is connected to the power line through the high voltage coupling capacitors of the CVT.

Relays are installed at each bus bar in a transmission network. These detect the fault generated high frequency voltage transient signals and record the time instant corresponding to when the initial ....etc

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