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347 results on '"Ranganathaiah, C"'

1. Evaluation of Corrosion Rate and Scratch Resistance in Chromium Alloyed Irons Influenced by Manganese Addition and Process Parameters

Author

Pramod, T., Sampathkumaran, P., Seetharamu, S., Dube, Narendra, Vergis, Bincy Rose, Kumar, R. K., Ranganathaiah, C., Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Mudali, U. Kamachi, editor, Aruna, S. T., editor, Nagaswarupa, H. P., editor, and Rangappa, Dinesh, editor

Published
2022
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2. Physics Potential of the ICAL detector at the India-based Neutrino Observatory (INO)

Author

The ICAL Collaboration, Ahmed, Shakeel, Athar, M. Sajjad, Hasan, Rashid, Salim, Mohammad, Singh, S. K., Inbanathan, S. S. R., Singh, Venktesh, Subrahmanyam, V. S., Behera, Shiba Prasad, Chandratre, Vinay B., Dash, Nitali, Datar, Vivek M., Kashyap, V. K. S., Mohanty, Ajit K., Pant, Lalit M., Chatterjee, Animesh, Choubey, Sandhya, Gandhi, Raj, Ghosh, Anushree, Tiwari, Deepak, Ajmi, Ali, Sankar, S. Uma, Behera, Prafulla, Chacko, Aleena, Jafer, Sadiq, Libby, James, Raveendrababu, K., Rebin, K. R., Indumathi, D., Meghna, K., Lakshmi, S. M., Murthy, M. V. N., Pal, Sumanta, Rajasekaran, G., Sinha, Nita, Agarwalla, Sanjib Kumar, Khatun, Amina, Mehta, Poonam, Bhatnagar, Vipin, Kanishka, R., Kumar, A., Shahi, J. S., Singh, J. B., Ghosh, Monojit, Ghoshal, Pomita, Goswami, Srubabati, Gupta, Chandan, Raut, Sushant, Bhattacharya, Sudeb, Bose, Suvendu, Ghosal, Ambar, Jash, Abhik, Kar, Kamalesh, Majumdar, Debasish, Majumdar, Nayana, Mukhopadhyay, Supratik, Saha, Satyajit, Acharya, B. S., Banerjee, Sudeshna, Bhattacharya, Kolahal, Dasgupta, Sudeshna, Devi, Moon Moon, Dighe, Amol, Majumder, Gobinda, Mondal, Naba K., Redij, Asmita, Samuel, Deepak, Satyanarayana, B., Thakore, Tarak, Ravikumar, C. D., Vinodkumar, A. M., Gangopadhyay, Gautam, Raychaudhuri, Amitava, Choudhary, Brajesh C., Gaur, Ankit, Kaur, Daljeet, Kumar, Ashok, Kumar, Sanjeev, Naimuddin, Md., Bari, Waseem, Malik, Manzoor A., Singh, Jyotsna, Krishnaveni, S., Ravikumar, H. B., Ranganathaiah, C., Mahapatra, Swapna, Biswas, Saikat, Chattopadhyay, Subhasis, Ganai, Rajesh, Ghosh, Tapasi, and Viyogi, Y. P.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

The upcoming 50 kt magnetized iron calorimeter (ICAL) detector at the India-based Neutrino Observatory (INO) is designed to study the atmospheric neutrinos and antineutrinos separately over a wide range of energies and path lengths. The primary focus of this experiment is to explore the Earth matter effects by observing the energy and zenith angle dependence of the atmospheric neutrinos in the multi-GeV range. This study will be crucial to address some of the outstanding issues in neutrino oscillation physics, including the fundamental issue of neutrino mass hierarchy. In this document, we present the physics potential of the detector as obtained from realistic detector simulations. We describe the simulation framework, the neutrino interactions in the detector, and the expected response of the detector to particles traversing it. The ICAL detector can determine the energy and direction of the muons to a high precision, and in addition, its sensitivity to multi-GeV hadrons increases its physics reach substantially. Its charge identification capability, and hence its ability to distinguish neutrinos from antineutrinos, makes it an efficient detector for determining the neutrino mass hierarchy. In this report, we outline the analyses carried out for the determination of neutrino mass hierarchy and precision measurements of atmospheric neutrino mixing parameters at ICAL, and give the expected physics reach of the detector with 10 years of runtime. We also explore the potential of ICAL for probing new physics scenarios like CPT violation and the presence of magnetic monopoles., Comment: 139 pages, Physics White Paper of the ICAL (INO) Collaboration, Contents identical with the version published in Pramana - J. Physics

Published
2015
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6. Invited review: Physics potential of the ICAL detector at the India-based Neutrino Observatory (INO)

Author

Kumar, A, Vinod Kumar, A M, Jash, Abhik, Mohanty, Ajit K, Chacko, Aleena, Ajmi, Ali, Ghosal, Ambar, Khatun, Amina, Raychaudhuri, Amitava, Dighe, Amol, Chatterjee, Animesh, Gaur, Ankit, Ghosh, Anushree, Kumar, Ashok, Redij, Asmita, Satyanarayana, B, Acharya, B S, Choudhary, Brajesh C, Ranganathaiah, C, Ravikumar, C D, Gupta, Chandan, Indumathi, D, Kaur, Daljeet, Majumdar, Debasish, Samuel, Deepak, Tiwari, Deepak, Rajasekaran, G, Gangopadhyay, Gautam, Majumder, Gobinda, Ravikumar, H B, Singh, J B, Shahi, J S, Libby, James, Singh, Jyotsna, Raveendrababu, K, Meghna, K K, Rebin, K R, Kar, Kamalesh, Bhattacharya, Kolahal, Pant, Lalit M, Athar, M Sajjad, N Murthy, M V, Malik, Manzoor A, Naimuddin, Md, Salim, Mohammad, Ghosh, Monojit, Devi, Moon Moon, Mondal, Naba K, Majumdar, Nayana, Sinha, Nita, Dash, Nitali, Ghoshal, Pomita, Mehta, Poonam, Behera, Prafulla, Kanishka, R, Gandhi, Raj, Ganai, Rajesh, Hasan, Rashid, Krishnaveni, S, Lakshmi, S M, Singh, S K, R Inbanathan, S S, Sankar, S Uma, Jafer, Sadiq, Biswas, Saikat, Kumar, Sanjeev, Agarwalla, Sanjib Kumar, Choubey, Sandhya, Saha, Satyajit, Ahmed, Shakeel, Behera, Shiba Prasad, Goswami, Srubabati, Chattopadhyay, Subhasis, Bhattacharya, Sudeb, Banerjee, Sudeshna, Dasgupta, Sudeshna, Pal, Sumanta, Mukhopadhyay, Supratik, Raut, Sushant, Bose, Suvendu, Mahapatra, Swapna, Ghosh, Tapasi, Thakore, Tarak, S Kashyap, V K, Subrahmanyam, V S, Singh, Venktesh, Chandratre, Vinay B, Bhatnagar, Vipin, Datar, Vivek M, Bari, Waseem, and Viyogi, Y P

Published
2017
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9. India-based Neutrino Observatory

Author

Acharya, B. S., Agarwalla, Sanjib Kumar, Behera, Prafulla Kumar, Bhasin, Anju, Chattopadhyay, Subhasish, Choubey, Sandhya, Datar, Vivek, Gandhi, Raj, Gangopadhyay, Gautam, Goswami, Srubabati, Hasan, Rashid, Indumathi, D., Mondal, Naba K., Murthy, M. V. N., Naimuddin, Md, Rajasekaran, G., Ranganathaiah, C., Raychaudhuri, Amitava, Singh, Venktesh, Sinha, Nita, Vinodkumar, A. M., and Viyogi, Y. P.

Published
2013

21. Interfacial modifications in PS/PMMA and PVC/EVA blends by E-beam and microwave irradiation: a free volume study

Author

Raj, J.M., Ranganathaiah, C., and Ganesh, S.

Subjects
Irradiation -- Methods -- Usage -- Research -- Chemical properties, Polymethylmethacrylate -- Chemical properties -- Usage, Polyvinyl chloride -- Chemical properties -- Usage, Microwave devices -- Usage, Polystyrene -- Chemical properties -- Usage, Engineering and manufacturing industries, Science and technology, Chemical properties, Usage, Research, Methods
Abstract

Phase modifications in a partially miscible blend PS/PMMA and an immiscible blend PVC/EVA have been brought about using electron beam and microwave irradiation to improve the interfacial tension. These changes have been characterized by positron lifetime technique through free volume monitoring with support from DSC measurements. the hydrodynamic interaction parameter deduced from free volume data turns out to be a good parameter to characterize the interfacial changes compared with free volume data itself. The free volume data also confirms that the conventional DSC measurements are not adequate to differentiate the level of miscibility or interfacial tension. Present data based on hydrodynamic interaction parameter indicate that microwave irradiation is a better route to stabilize the interfaces than e-beam irradiation. POLYM, ENG. SCI., 48:1495-1503, 2008. ©2008 Society of Plastics Engineers, INTRODUCTION Blending is a widely used technique in polymer research to improve the physical/mechanical properties of homopolymers (1). Polymer blends with exploitable combination of properties are an alternative to meet [...]

Published
2008

26. Free volume microprobe studies on Poly(methyl methacrylate)/Poly(vinyl chloride) and Poly(vinyl chloride)/Polystyrene blends

Author

Kumaraswamy, G.N. and Ranganathaiah, C.

Subjects
Polymethylmethacrylate -- Research -- Properties, Polyvinyl chloride -- Research -- Properties, Mixing -- Research, Polystyrene -- Research -- Properties, Engineering and manufacturing industries, Science and technology, Research, Properties
Abstract

Blends of Poly(methyl methacrylate) (PMMA)/Poly(vinyl chloride) (PVC) and Poly(vinyl chloride) (PVC)/Polystyrene (PS) of different compositions were prepared by solution casting technique. The blends were characterized using Differential Scanning Calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), and Positron Lifetime Spectroscopy. DSC data were found to be inadequate to describe whether PMMA/PVC blends are miscible or not, possibly because of the small gap in their glass transition temperatures. On the other hand, PVC/PS blends were clearly found to be immiscible by DSC. FTIR results for PMMA/PVC indicate the possible interactions between the carbonyl group of PMMA and α-hydrogen of PVC. Free volume data derived from Positron lifetime measurements showed that the PMMA/PVC blends to be miscible in low PVC concentration domain. For the first time, the authors have evaluated the hydrodynamic interaction parameter α, advocated by Wolf and Schnell, Polymer, 42, 8599 (2001), to take into account the friction between the component molecules using the free volume data. This parameter (α) has a high value (-57) at 10 wt% of PVC, which could be taken to read miscibility for PMMA/PVC blends to be high. In the case of PVC/PS blends, the positron results fully support the DSC data to conclude the blends to be immiscible throughout the range of concentration. As expected, the hydrodynamic interaction parameter α does not show any change throughout the concentration in PVC/PS blends, further supporting the idea that α is another suitable parameter in the miscibility study of polymer blends. POLYM. ENG. SCI., 46:1231-1241, 2006. © 2006 Society of Plastics Engineers, INTRODUCTION Polymer blending is a widely used technique to improve the physical/mechanical properties of homopolymers [1]. Blending of two polymers may either result in a compatible (miscible) system or incompatible [...]

Published
2006

38. A Method for Characterizing Thermoset Polyimides

Author

Ranganathaiah, C, Sprinkle, D. R, Pater, R. H, and Eftekhari, A

Subjects
Nonmetallic Materials
Abstract

Thermoset polyimides have great potential for successfully meeting tough stress and temperature challenges in the advanced aircraft development program. However, studies of structure-property relationships in these materials have not been very successful so far. Positron lifetime spectroscopy (PLS) has been used to investigate free volumes and associated parameters in a series of variable, segmental molecular weight samples. The free volume correlates well with the molecular weight M(sub c), the cross-link density v, and the coefficient of thermal expansion (CTE) of these materials. Currently, no other techniques are available for direct measurement of these parameters, particularly for polymers in solid phase. Experimental results and their interpretations are presented.

Published
1996

39. Morphology of Thermoset Polyimides by Positron Annihilation Spectroscopy

Author

Ranganathaiah, C, Pater, R. H, Sprinkle, D. R, Baugher, A. H, Eftekhari, A, and Singh, J. J

Subjects
Nonmetallic Materials
Abstract

Thermoset polyimides have great potential for successfully meeting tough stress and temperature challenges in the advanced aircraft development program. However, studies of structure/property relationships in these materials have not been very successful so far. Positron annihilation spectroscopy has been used to investigate free volumes and associated parameters. It has been noted that the free volume correlates well with the molecular weight, cross-link density and thermal coefficient of expansion of these materials. Currently no other techniques are available for direct measurement of these parameters. Experimental results and their interpretations will be discussed.

Published
1994

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