Mobile Ad-Hoc Network is an infrastructure less network where the nodes are mobile and each node behaves as a router. The routes may require a multiple hops in the network to reach the destination. There are many routing protocols in MANET that is used to govern the path from the source node to the destination node. This paper focus on the performance of two routing protocol namely DSDV and AODV which are proactive and reactive routing protocols respectively in a MANET using the Transmission Control Protocol NewReno as a transport layer protocol. The number of TCP connection is varied and the performance is evaluated using average throughput, packet delivery ratio and average end to end delay. The same performance metrics are used to see the effect of number of nodes increment in a MANET environment using a TCP connection..
With every passing day, huge number of information is exchanged, gathered over the electronics mean. This needs to aware users about their database security and how to handle it. Though, this is a more complex process for large organizations having massive amount of data in the warehouses, legacy systems, flat files, etc. This paper has proposed new method of protecting database using dynamic certificates for each query sent to the database. This dynamically generated encrypted query is more secure than the original query. Also, we have developed a very own Database Management System to test our security mechanism.
The influx of large numbers of people to mass gathering events may give rise to specific public health risks. Kumbh-Mela is internationally famous religious mass gathering. It creates the substantial challenge of creating a temporary city in which millions of pilgrims/visitors can stay for a defined period of time. The arrangements need to allow this very large number of people to reside with proper medical services, adequate supplies of food, electricity, waste disposal, clean water and transportation etc. Understanding the Kumbh-Mela can highlight the health challenges faced and provide the crucial lessons for the management of mass gatherings.
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