Prasenjit Ghosh

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Effective segmentation of offline handwritten word images of uncon-strained handwritten Bangla script is a challenging problem in Optical Character Recognition (OCR) application. Presence of a continuous horizontal line called 'Matra' is an important feature of this script. However, in unconstrained cursive handwriting, Matra can be wavy or discontinuous,(More)
The in vogue N-heterocyclic carbenes (NHCs) have attracted attention largely for its new found popularity in chemical catalysis and also for displaying promising traits in biomedical applications. The current perspective provides an account of our efforts in exploring the utility of N/O-functionalized N-heterocyclic carbenes in these two areas. On the(More)
Electronic charge transfer plays an important role in novel nanostruc-tured photovoltaic materials. Standard Density Functional Theory (DFT) as well as Time Dependent DFT severly underestimate the excitation energies related to such transitions[1, 2, 3, 4, 5]. For the paradigmatic case of a donor-acceptor dyad formed by a zinc-porphyrin donor and a C 70(More)
A structural and functional mimic of the galactose oxidase (GOase) enzyme active-site by a copper complex supported over a sterically demanding ligand having [N2O2] donor sites is reported. Specifically, the binding of the histidine (496 and 581) and tyrosine (272 and 495) residues to the copper center in a square-pyramidal fashion in the active-site of(More)
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