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A Computational Grid is a collection of heterogeneous computers and resources spread across multiple administrative domains with the intent of providing users easy access to these resources. There are many ways to access the resources of a Computational Grid, each with unique security requirements and implications for both the resource user and the resource provider.

A comprehensive set of Grid usage scenarios is presented and analyzed with regard to security requirements such as authentication, authorization, integrity, and confidentiality ....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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Presented by:Vijaya Krishnan.S
Security Issues of P2P Networks

Abstract
P2P applications introduce a whole new series of security issues, security within the virtual P2P networks themselves and security with respect to the environments they ride on. P2P technology can undermine network security and can leave computing devices open to threats ranging from violations of intellectual property laws, virus ....etc

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A Computational Grid is a collection of heterogeneous computers and resources spread across multiple administrative domains with the intent of providing users easy access to these resources. There are many ways to access the resources of a Computational Grid, each with unique security requirements and implications for both the resource user and the resource provider. A comprehensive set of Grid usage scenarios is presented and analyzed with regard to security requirements such as authentication, authorization, integrity, and confidentiality. Th ....etc

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GLOBAL WARMING AND ISSUES


Global Warming will be the greatest environmental challenge in the 21st century

Global warming - effect on the climate of human activities, in particular the burning of fossil fuels (coals, oil and gases) and large-scale deforestation, which causes the emission of green house gases e.g. carbon di oxide, emission to the atmosphere.

The global temperature of earth’s atmosphere is raised due to increased inputs of carbon dioxide ....etc

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PLEASE SEND ME SOME DETAIL ON T ABOVE TOPIC AT [email protected].... ....etc

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INTEGRATION OF DISTRIBUTED GENERATION IN
MEDIUM VOLTAGE GRIDS - PROTECTION ISSUES
Keywords: Distributed Generation; Medium Voltage-grid; Protection;
ABSTRACT
At this moment climate change and CO2 reduction are hot topics in relation to en-
ergy production. Efforts are made to stimulate development of sustainable energy
sources, such as wind turbines and PV-systems. Also the combined heat and power
production is encouraged. This has lead to an increasing penetration of small gen-
erating units in medium voltage (MV) grids. Small gene ....etc

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A Computational Grid is a collection of heterogeneous computers and resources spread across multiple administrative domains with the intent of providing users easy access to these resources. There are many ways to access the resources of a Computational Grid, each with unique security requirements and implications for both the resource user and the resource provider. A comprehensive set of Grid usage scenarios is presented and analyzed with regard to security requirements such as authentication, authorization, integrity, and confidentiality. Th ....etc

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Global Issues

Everyday radios, newspapers, televisions and the internet warn us of energy exhaustion, atmospheric pollution and hostile climatic conditions. After few hundred years of industrial development, we are facing these global problems while at the same time we maintain a high standard of living. The most important problem we are faced with is whether we should continue developing or die.

Coal, petroleum, natural gas, water and nuclear energy are the five main energy sources that hav ....etc

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