Search

Your search keyword '"A. K. Pal"' showing total 2 results
Start Over Author "A. K. Pal" Language german
2 results on '"A. K. Pal"'

1. Transition Metal Complexes of Bidentate and Tridentate Ligands: From Optoelectronic Studies to Supramolecular Assemblies

Author

Amlan K. Pal

Subjects
Density functional theory (dft), Electrochemistry, Nir emitter, Photochemistry, Supramolecular chemistry, Chemistry, QD1-999
Abstract

This article depicts an overview of some of the research in supramolecular chemistry performed by the author over the past few years. This work includes the synthesis of building blocks, bidentate and tridentate 'super donor' ligands that are comprised of H-hpp (where H-hpp = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a] pyrimidine) coupled with various N-heterocycles as well as the synthesis and characterization of the transition metal complexes in self-assembled superstructures. The article also includes the studies of photophysical, electrochemical and density functional theory calculation of the complexes. Thus, the work relies on a combination of synthetic work and optoelectronic studies, and the results are relevant in the greater context of supramolecular chemistry, solar energy harvesting, and its conversion to chemical energy, photovoltaics and inorganic light-emitting device applications.

Published
2015
Full Text
View/download PDF

2. Applying Cuckoo Search for analysis of LFSR based cryptosystem

Author

Maiya Din, Sunil K. Muttoo, Saibal K. Pal, and Anjali Jain

Subjects
0209 industrial biotechnology, Theoretical computer science, Evolutionary algorithm, Swarm intelligence, Cryptography, 02 engineering and technology, law.invention, Cryptanalysis, 020901 industrial engineering & automation, law, 0202 electrical engineering, electronic engineering, information engineering, LFSR, Cryptosystem, Cuckoo search, lcsh:Science, lcsh:Science (General), Mathematics, Degree (graph theory), business.industry, Process (computing), Cuckoo Search, 020201 artificial intelligence & image processing, lcsh:Q, business, Algorithm, lcsh:Q1-390
Abstract

Summary Cryptographic techniques are employed for minimizing security hazards to sensitive information. To make the systems more robust, cyphers or crypts being used need to be analysed for which cryptanalysts require ways to automate the process, so that cryptographic systems can be tested more efficiently. Evolutionary algorithms provide one such resort as these are capable of searching global optimal solution very quickly. Cuckoo Search (CS) Algorithm has been used effectively in cryptanalysis of conventional systems like Vigenere and Transposition cyphers. Linear Feedback Shift Register (LFSR) is a crypto primitive used extensively in design of cryptosystems. In this paper, we analyse LFSR based cryptosystem using Cuckoo Search to find correct initial states of used LFSR. Primitive polynomials of degree 11, 13, 17 and 19 are considered to analyse text crypts of length 200, 300 and 400 characters. Optimal solutions were obtained for the following CS parameters: Levy distribution parameter ( β ) = 1.5 and Alien eggs discovering probability ( p a ) = 0.25.

Published
2016

Catalog

Books, media, physical & digital resources
See catalog results