Bøger af Atanu Mondal

The art of constructing complex molecular architectures has encouraged the generation of chemists to synthesize such molecules possessing significant biological and medicinal attributes. Inspired by the catalytic systems taking place in nature, chemists looked into imitating biocatalytic processes. This led to the birth of organocatalysis, where small organic molecules bearing minimal functionalities activate the substrate and affect the reactions. Organocatalysts are less toxic, readily available, and less sensitive towards air and moisture than metal catalysts. Helped by intuition and persistence, organocatalysis has emerged as one of the most important frontiers in organic synthetic research and has become a powerful tool in constructing complex molecular skeletons. There are essentially four types of organocatalysts; Lewis bases, Lewis acids, Brønsted bases, and Brønsted acids. Among the Lewis bases, N-heterocyclic carbenes (NHCs), amines, and phosphines are widely employed in catalysis..

This book, based on dissertation, offers a comprehensive coverage of different security issues such as identification, authentication, and tracking of vehicles in Vehicular Ad Hoc Network (VANET). It addresses the issues of revocation of misbehaving vehicles from the set of authentic vehicles. It deals with the problem of channel congestion control and its solutions. Thereafter it deals with the problem of protecting VANET from unauthorized message dissemination and message alternation.