Browsing by Author "Ghosh, C."

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A System Engineering Approach to Disaster Resilienceâ€”An Introduction
(Springer Science and Business Media Deutschland GmbH, 2022) Ghosh, C.; Kolathayar, S.
In this dynamic earth, each and every place is affected from natural, technological, biological, environmental hazards and/or related impacts. Depending on the extent of resilience measures in place and socioeconomic status of the countries, their infrastructures and environmental sensitiveness, the damage, and loss patterns are exposed. So to ensure basic security and quality of life against all, impending hazards have been the key issues for the academia and industries vis-a-vis administrative setup. Therefore, disaster resilience has become a systemic challenge for the mankind, and eventually, responding to disasters has been into the mainframe of all concerned governance from the time that natural resources are being extracted and used for the exploiting more and more from the mother nature. But in recent times as we are making lots of infrastructural growth, it is more so critical with the onset of deadly infectious disease outbreaks, acts of terrorism, social unrest, and fluctuation in the share market leading to financial disasters. From perspective of system engineering approaches, this chapter explains various facets of disaster resilience paradigm with particular motivation to the infrastructure growth and sustenance. Additionally, a summary of the 38 selected papers categorized into six sub-themes about the necessary approaches to elevate resilience to disasters is presented. Â© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Giant dipole resonance studies in Ba isotopes at E/A?5 MeV
(2017) Ghosh, C.; Kumar, A.K.R.; Dey, B.; Nanal, V.; Pillay, R.G.; Arumugam, P.; Anoop, K.V.; Dokania, N.; Garai, A.; Gupta, G.; Mirgule, E.T.; Mishra, G.; Mondal, D.; Pal, S.; Pose, M.S.; Rout, P.C.
Exclusive measurements of high-energy ? rays have been performed in Ba124 and Ba136 at the same excitation energy (?49MeV) to study the properties of the giant dipole resonance (GDR) over a wide N/Z range. The high-energy ? rays are measured in coincidence with the multiplicity of low-energy ? rays to disentangle the effect of temperature (T) and angular momentum (J). The GDR parameters are extracted employing a simulated Monte Carlo statistical model analysis. The observed ?-ray spectra of Ba124 can be explained with prolate deformation, whereas a single-component Lorentzian function which corresponds to a spherical shape could explain the ?-ray spectra of Ba136. The observed GDR width in Ba136 is narrower compared to that of Ba124. The statistical model best-fit GDR cross sections are found to be in reasonable agreement with the thermal shape fluctuation model (TSFM) calculations. Further, it is shown that the variation of GDR width with T is well reproduced by the TSFM calculations over the temperature range of 1.1-1.7 MeV. 2017 American Physical Society.
Giant dipole resonance studies in Ba isotopes at E/A?5 MeV
(American Physical Society revtex@aps.org, 2017) Ghosh, C.; Rhine Kumar, A.K.R.; Dey, B.; Nanal, V.; Pillay, R.G.; Arumugam, P.; Anoop, K.V.; Dokania, N.; Garai, A.; Gupta, G.; Mirgule, E.T.; Mishra, G.; Mondal, D.; Pal, S.; Pose, M.S.; Rout, P.C.
Exclusive measurements of high-energy ? rays have been performed in Ba124 and Ba136 at the same excitation energy (?49MeV) to study the properties of the giant dipole resonance (GDR) over a wide N/Z range. The high-energy ? rays are measured in coincidence with the multiplicity of low-energy ? rays to disentangle the effect of temperature (T) and angular momentum (J). The GDR parameters are extracted employing a simulated Monte Carlo statistical model analysis. The observed ?-ray spectra of Ba124 can be explained with prolate deformation, whereas a single-component Lorentzian function which corresponds to a spherical shape could explain the ?-ray spectra of Ba136. The observed GDR width in Ba136 is narrower compared to that of Ba124. The statistical model best-fit GDR cross sections are found to be in reasonable agreement with the thermal shape fluctuation model (TSFM) calculations. Further, it is shown that the variation of GDR width with T is well reproduced by the TSFM calculations over the temperature range of 1.1-1.7 MeV. © 2017 American Physical Society.