Author Details

Scroll

Refine your search

Collections

Co-Authors

Journals

Year

Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All

Reddy, G. R.

Rare Earth Element Geochemistry of Basalt-Spilite Association of Bombay and Carlsberg Ridge-A Preliminary Study

Rare Earth Geochemistry of Basalts from the 'FAMOUS' Area Mid-Atlantic Rift Valley-A Preliminary Study

Petrogenetic Significance of Rare Earth Element Patterns of Selected Samples of Ingaldhal Metavolcanics, Karnataka State, India: Consortium Studies No.1

Natural Base Isolation System for Earthquake Protection

Abstract Views :146 | PDF Views:36

Authors

Srijit Bandyopadhyay ¹, Aniruddha Sengupta ¹, G. R. Reddy ²

Affiliations
1 Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721 302, IN
2 Structural and Seismic Engineering Section, Homi Bhaba National Institute, Mumbai 400 094, IN

Source

Current Science, Vol 107, No 6 (2014), Pagination: 1037-1043

Abstract

The performance of a well-designed layer of sand, geo-grid, geo-textiles and composites like layer of sand mixed with shredded tyre (rubber) as low-cost base isolators is studied in shake table tests in the laboratory. The building foundation is modelled by a 200 mm × 200 mm and 40 mm thick, rigid plexi-glass block. The block is placed in the middle of a 1 m × 1 m tank filled with sand. The selected base isolator is placed between the block and the sand foundation. Accelerometers are placed on top of the footing and foundation sand layer. The displacement of the footing is also measured by transducers. The whole set-up is mounted on the shake table and subjected to sinusoidal motion with varying amplitude and frequency. Sand is found to be effective only at very high amplitude (>0.65 g) of motion. Among all the different materials tested, the performance of a composite consisting of sand and 50% shredded rubber tyre placed under the footing is found to be the most promising as a low-cost, effective base isolator.

Keywords

Base Isolation, Earthquake Protection, Shake Table Test, Shredded Rubber Tyre.

Full Text

Comparative Studies on Quality Assessment of Trachyspermum Ammi Linn. Seeds Collected from Different locations of Punjab State

Abstract Views :130 | PDF Views:0

Authors

A. K. Meena ¹, M. M. Rao ², R. Sannd ¹, A. K. Mangal ¹, G. R. Reddy ³, M. M. Padhi ⁴, Ramesh Babu ⁵

Affiliations
1 National Institute of Ayurvedic Pharmaceutical Research, CCRAS, Patiala -147001, IN
2 National Institute of Ayurvedic Pharmaceutical Research, CCRAS, Patiala -147001, IN
3 Raja Ramdeo Anandilal Podar Ayurveda Cancer Research Institute, Mumbai, IN
4 Central Council for Research in Ayurveda and Siddha, Janakpuri, Delhi-110058, IN
5 Central Council for Research in Ayurveda and Siddha, Janakpuri, Delhi- 110058, IN

Source

Research Journal of Pharmacognosy and Phytochemistry, Vol 3, No 1 (2011), Pagination: 41-44

Abstract

Ayurveda, the science of life, deals with the holistic view of healthy living. It emphasizes on prevention as well as treatment of various disease conditions through holistic approach. Since ancient times, several diseases have been treated by administration of plant material based on traditional method and approaches. Investigation of traditionally used medicinal plants is thus valuable on two levels, firstly, as a source of potential chemotherapeutic drugs, and secondly, as a measure of safety for the continued use of medicinal plants. The seeds of Trachyspermum ammi Linn. are being used in traditional folk medicines for the treatment of various gastro-intestinal and inflammatory disorders. It is a bitter, aromatic, thyme like aroma warming herb, and possesses tonic, diuretic, and expectorant properties. It relaxes spasms, improves digestion, increases perspiration and is a strong antiseptic. Physicochemical studies on various parameters like total ash, acid insoluble ash, water soluble ash, ethanol soluble extractive value, water soluble extractive value, loss on drying, pH, TLC reveal specific identities for the crude drug which will be useful in identification and help in controlling adulterations.

Keywords

Ayurveda, Thymol, Phytochemistry, Trachyspermum ammi Linn.

Full Text

A Comparative Assessment of the Seismic Response of an Earthen Dam Using Analytical Simulation and Empirical Methods

Abstract Views :174 | PDF Views:27

Authors

Srijit Bandyopadhyay ¹, Raj Banerjee ¹, Aniruddha Sengupta ², Y. M. Parulekar ¹, G. R. Reddy ¹

Affiliations
1 Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, IN
2 Civil Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721 302, IN

Source

Current Science, Vol 113, No 05 (2017), Pagination: 902-910

Abstract

This article presents the permanent deformation of an earthen dam located in the vicinity of a safety related structure for M_w = 6.5 design basis earthquake. A non-linear 2D dynamic analysis using a real earthquake motion compatible with the design spectrum was performed to check the earthquake-induced deformations of the dam. Deformations of the dam were also estimated by semi-empirical and empirical methods suc has Seed and Makdisi’s method, Newmark’s double integration method, Jansen’s method and Swaisgood’s method. Results from different methods are compared to obtain a range for the value of permanent deformations of the dam. It is observed that the lateral deformation obtained by Seed and Makdisi’s method is the highest while Jansen’s method predicts the highest crest settlement. The crest settlement of the dam is found to vary between 11.8 mm and 17.8 mm, which is within the safety limits according to IITK-GSDMA guidelines.

Keywords

Earthen Dam, Dynamic Analysis, Deformations, Non-Linear Finite Element Analysis.

Full Text

References

USBR, Seismic design and analysis of embankment dams, Design Standards. Chapter 13, In United States Department of the Interior, Bureau of Reclamation, Denver, Colorado, DS-13(13)-7, 1989.

IS:1893, Indian Standard criteria for earthquake resistant design of structures, Part 1 – general provisions and buildings, Bureau of Indian Standards, Fifth Revision, New Delhi, 2001.

Newmark, N. M., Effects of earthquakes on dams and embankments. Geotechnique, 1965, 15(2), 139–159.

Makdisi, F. I. and Seed, H. B., Simplified procedure for estimating dam and embankment earthquake induced deformations. J. Geotech. Eng. Div., 1978, 104(7), 849–867.

Jansen, R. B., Estimation of embankment dam settlement caused by earthquake. Int. Water Power Dam Constr., 1990, 42(12), 35–40.

Swaisgood, J. R., Estimating deformation of embankment dams caused by earthquakes. In ASDSO Western Regional Conference, Montana, USA, 1995, pp. 1–7.

Singh, R., Roy, D. and Jain, S. K., Analysis of earth dams affected by the 2001 Bhuj Earthquake. Eng. Geol., 2005, 80, 282–291.

Basudhar, P. K., Rao, N. S. V. K., Bhookya, M. and Dey, A., 2D FEM analysis of earth and rockfill dam under seismic condition. In 5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, 2010.

Seed, H. B. and Idriss, I. M., Soil modulii and damping factors for dynamic response analysis. Report EERC, 70–10, University of California, Berkeley, 1970.

Hardin, B. O. and Drenvich, V. P., Shear modulus and damping in soils: design equations and curves. J. Soil Mech. Found. Div., 1972, 98(7), 667–692.

Gutenberg, B. and Richter, C. F., Earthquake magnitude, intensity, energy and acceleration (second paper). Bull. Seismol. Soc. Am., 1956, 46(2), 105–145.

Idriss, I. M., Evaluating seismic risk in engineering practice. In Proceedings of the 11th International Conference on Soil Mechanics and Foundation Engineering, San Francisco, USA, 1985, vol. 1, pp. 255–320.

Ghosh, A. K., Rao, K. S. and Kushwaha, H. S., Development for UHRS for Tarapur, Trombay and Kakrapara Sites. Report BARC/2003/E/019, 2003.

Sengupta, A., Estimation of permanent displacements of the Tehri dam in the Himalayas due to future strong earthquakes. Sadhana, 2010, 35(3), 373–392.

Ghaboussi, J. and Wilson, E. L., Seismic analysis of earth dam reservoir systems. J. Soil Mech. Found. Div., 1973, 99(10), 849–862.

Dakoulas, P. and Gazetas, G., A class of inhomogeneous shear models for seismic response of dams and embankments. Soil Dyn. Earthq. Eng., 1985, 4(4), 166–182.

Seed, H. B. and Sun, J. H., Implication of site effects in the Mexico City earthquake of 19 September 1985 for Earthquakeresistancedesign criteria in the San Francisco Bay Area of California. In Report No. UCB/EERC-89/03, University of California, Berkeley, USA, 1989.

Bishop, A. W., The use of slip circles in the stability analysis of earth slopes. Geotechnique, 1955, 5(1), 7–17.

Seed, H. B. and Martin, G. R., The seismic coefficient in earth dam design. J. Soil Mech. Found. Div., 1966, 92(3), 25–58.

Seed, H. B. and Idriss, I. M., A simplified procedure for evaluating soil liquefaction potential. J. Soil Mech. Found. Div., ASCE, 1971, 97(9), 1249–1274.

IIT-K, GSDMA guidelines for seismic design of earth dams and embankments, 2007.

Study of a Surface Raft Foundation in Dry Cohesionless Soil Subjected to Dynamic Loading

Abstract Views :203 | PDF Views:30

Authors

Raj Banerjee ¹, Aniruddha Sengupta ², G. R. Reddy ¹

Affiliations
1 Bhabha Atomic Research Centre, Mumbai 480 005, IN
2 Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721 302, IN

Source

Current Science, Vol 117, No 11 (2019), Pagination: 1800-1812

Abstract

In this study, behaviour of a raft foundation in dry cohesionless soil when subjected to dynamic loadings is presented. The numerical model is validated by model tests on shaking table and numerically by a plane strain finite difference program, FLAC 2D. In both shaking table tests and numerical analyses, the raft located in dry Kasai River sand in Kharagpur has been subjected to 10 cycles of equivalent sinusoidal loadings with an amplitude of 0.2412 g at a frequency of 2 Hz, which represents an irregular time history of the Loma Prieta Earthquake (1989). The results of the above study in terms of response time histories, bending moment and lateral displacement of the raft have been validated with numerical simulations, and the results are in reasonable agreement with the corresponding experimental findings. A methodology to study the behaviour of a raft foundation subjected to harmonic excitations has been proposed in terms of vertical deformations of the raft foundation in dry sand for a given value of dynamic (or degraded) factor of safety.

Keywords

Dry Soil, Dynamic Loading, Numerical Analysis, Raft Foundation, Shaking Table Test.

Full Text

References

Richart, F. E., Foundation vibrations. Trans: ASCE, 1962, 127(1), 863–898.

Kishida, H., Damage to reinforced concrete buildings on Nigata city with special reference to foundation engineering. Soils Found., 1966, 6(1), 71–88.

Seed, H. B. and Idriss, I. M., Analysis of soil liquefaction: Niigata earthquake. J. Soil Mech. Found. Div. ASCE, 1967, 93(3), 83–108.

Richart, F. E. and Whitman, R. V., Design procedures for dynamically loaded foundations. J. Soil Mech. Found. Div. ASCE, 1967, 93(SM6), 168–193.

Richart, F. E. and Whitman, R. V., Comparison of footing vibrations with theory. J. SMFD, Proc. ASCE, 1967, 93(SM6), 143– 167.

Richards, R., Elms, D. G. and Budhu, M., Seismic bearing capacity and settlements of foundations. J. Geotech. Eng., 1993, 119, 662–674.

Yoshimi, Y. and Tokimatsu, K., Settlement of buildings on saturated sand during earthquakes. Soils Found., 1977, 17(1), 23–38.

Dobry, R and Gazettas, G., Dynamic response of arbitrarily shaped foundations. J. Geotech. Eng. Div. ASCE, 1986, 112(2), 109–125.

Dobry, R., Gazettas, G. and Stokoe, K. H., Dynamic response of arbitrarily shaped foundations: experimental verification. J. Geotech. Eng. Div. ASCE, 1986, 112(2), 126–154.

Gazettas, G. and Stokoe, K. H., Free vibrations of embedded foundations: theory versus experiment. J. Geotech. Eng. Div. ASCE, 1991, 117(9), 1382–1401.

Puri, V. K. and Das, B. M., Dynamic response of block foundation. In Third International Conference on Case Histories in Geotechnical Engineering, 1993.

Ragheb, A. M., Numerical analysis of seismically induced deformations in saturated granular soil strata. Ph D thesis, Department of Civil Engineering, Rensselaer Polytechnic Institute, NY, 1994.

Paolucci, R., Simplified evaluation of earthquake-induced permanent displacements of shallow foundations. J. Earthq. Eng., 1997, 1(3), 563–579.

Gajan, S. and Kutter, B. L., Contact interface model for shallow foundations subjected to combined cyclic loading. J. Geotech. Geo-Environ. Eng., 2009, 135(3), 407–419.

Omer, C., Nonlinear analysis of thin rectangular plates on Winkler–Pasternak elastic foundations by DSC–HDQ methods. Appl. Math. Modell., 2006, 31, 606–624.

Ribeiro, D. B. and Paiva, J. B., An alternative BE–FE formulation for a raft resting on a finite soil layer. Eng. Anal. Boundary Elem., 2015, 50, 352–359.

Mandal, J. J. and Roychoudhury, S., Response of rectangular raft foundations under transient loading. The 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, 2008.

Wang, C. M., Chow, Y. K. and How, Y. C., Analysis of rectangular thick rafts on an elastic half-space. Comp. Geotech., 2000, 28, 161–184.

Stokoe, K. H., Kacar, O. and Van Pelt, J., Predicting settlements of shallow footings on granular soil using nonlinear dynamic soil properties. In Proceedings of 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, 2012, pp.3467–3470.

Asgari, A., Golshani, A. and Bagheri, M., Numerical evaluation of seismic response of shallow foundation on loose silt and silty sand. J. Earth System Sci., 2014 123(2), 365–379.

Itasca, User’s Guide for FLAC Version 5.0, Itasca India Consulting, Nagpur, 2005.

Bhattacharya, S., Lombardi, D., Dihoru, L., Dietz, M., Crewe, A. J. and Taylor, C. A., Model container design for soil–structure interaction studies. Role of Seismic Testing Facilities in Performance Based Earthquake Engineering, Springer Series, 2011, vol. 22, pp. 135–158.

Lombardi, D. and Bhattacharya, S., Shaking table tests on rigid soil container with absorbing boundaries. Lisbon, 2012, 15WCEE.

Banerjee, R., Konai, S., Sengupta, A. and Deb, K., Shake table tests and numerical modeling of Kasai River Sand. Geotech. Geol. Eng., 2017, 35(4), 1327–1340.

Giri, D. and Sengupta, A., Dynamic behaviour of small-scale model of nailed steep slopes. Geomech. Geoeng.: Int. J., 2010, 5(2), 99–108.

Bandyopadhyay, S., Sengupta, A. and Reddy, G. R., Performance of sand and shredded rubber tire mixture as a natural base isolator for earthquake protection. Earthq. Eng. Eng. Vib., 2015, 14(4), 683–693.

Dash, S. R., Lateral pile–soil interaction in liquefiable soils. Ph D thesis, University of Oxford, UK, 2010.

Ha, I. S., Olson, S. M., Seo, M. W. and Kim, M. M., Evaluation of reliquefaction resistance using shaking table tests. Soil Dyn. Earthq. Eng., 2011, 31(4), 682–691.

Ramu, M., Prabhu, R. V. and Thyla, P. R., Development of structural similitude and scaling laws for elastic models. KSCE J. Civil Eng., 2011, 17(1), 139–144.

Iai, S., Similitude for shaking table tests on soil–structure–fluid model in 1 g gravitational field. Soils Found., 1989, 29(1), 105–118.

Wood, D. M., Geotechnical Modeling, Version 2.2, 2004.

BIS, IS 2720 methods of test for soils, part 13 – direct shear test. Bureau of Indian Standards, New Delhi, 1986.

Seed, H. B. and Idriss, I. M., Soil moduli and damping factors for dynamic response analyses. College of Engineering, University of California, Berkeley, USA, 1970.

Kawaguchi, T. and Tanaka, H., Formulation of Gmax from reconstituted clayey soil: its application to measured Gmax in the field. Soils Found., 2006, 48, 821–831.

Murthy, V. N. S., Soil Mechanics and Foundation Engineering, CBS Publishers & Distributors, New Delhi, 2009.

Elgamal, A., Yang, Z., Adalier, K. and Sharp, M. K., Effect of rigid container size on dynamic earth dam response in centrifuge experiments. Proceedings 16th ASCE Engineering Mechanics Conference, University of Washington, Seattle, WA, USA, 2003.

Dasgupta, S., Narula, P. L., Acharyya, S. K. and Banerjee, J., Seismotectonic Atlas of India and its Environs, Geological Society of India, Kolkata, 2000.

BIS, IS 1893 Indian standard criteria for earthquake resistant design of structures, part 1 – general provisions and buildings. Fifth revision. Bureau of Indian Standard, New Delhi, 2002.

Seed, H. B., Idriss, I. M., Makdisi, F. and Banerjee, N., Representation of irregular stress time histories by equivalent uniform stress series in liquefaction analysis. EERC-75-29, University of California, Berkeley, USA, 1975.

Chopra, A. K., Dynamics of Structures, Theory and Applications to Earthquake Engineering, Prentice Hall, 2015, 3rd edn.

Chi-Chin, T., Wei-Chun, L. and Jiunn-Shyang, C., Identification of dynamic soil properties through shaking table tests on a large saturated sand specimen in a laminar shear box. Soil Dyn. Earthq. Eng., 2016, 83, 59–68.

Kuhlemeyer, R. L. and Lysmer, J., Finite element method accuracy for wave propagation problems. J. Soil Mech. Found., Div. ASCE, 1973.

Lysmer, J. and Kuhlemeyer, R. L., Finite dynamic model for infinite media. J. Eng. Mech., 1969, 95(EM4), 859–877.

Vaid, Y. P. and Saitharan, S., The strength and dilatancy of sand. Can. Geotech. J., 1992, 29(3), 522–526.

Griffiths, S. C., Cox, B. R. and Rathje, E. M., Challenges associated with site response analyses for soft soils subjected to highintensity input ground motions. Soil Dyn. Earthq. Eng., 2016, 85, 1–10.

Chattaraj, R. and Sengupta, A., Liquefaction potential and strain dependent dynamic properties of Kasai River sand. Soil Dyn. Earthq. Eng., 2016, 90, 467–475.

Menq, F. Y., Dynamic properties of sandy and gravelly soils. Ph D dissertation, University of Texas, Austin, USA, 2003.

Hutabarat, D., Evaluation of one-dimensional seismic site response analyses at small to large strain level. Thesis (Master's), University of Washington, USA, 2016.

Groholski, D. R., Hashash, Y. M. A., Kim, B., Musgrove, M., Harmon, J. and Stewart, J. P., Simplified model for small-strain nonlinearity and strength in 1D seismic site response analysis. J. Geotech. Geoenviron. Eng., 2016, 142(9), 1–14.

Choudhury, S. S., Deb, K. and Sengupta, A., Behavior of underground strutted retaining structure under seismic condition. Earthq. Struct., 2015, 8(5), 1147–1170.

Karamitros, D. K., Bouckovalas, G. D. and Chaloulos, Y. K., Seismic settlements of shallow foundations on liquefiable soil with a clay crust. Soil Dyn. Earth. Eng., 2013, 46, 64–76.

Kramer, S. L., Geotechnical Earthquake Engineering, Prentice hall, 1996.

Richards, R., Elms, D. G. and Budhu, M., Seismic bearing capacity and settlements of foundations. J. Geotech. Eng., 1993, 119, 662–674.

Yang, J., Li, J. B. and Lin, G., A simple approach to integration of acceleration data for dynamic soil–structure interaction analysis. Soil Dyn. Earthq. Eng., 2006, 26, 725–734.

BIS, IS 456 plain and reinforced concrete code of practice. Fourth revision. Bureau of Indian Standard, New Delhi, 2000.

Terzaghi, K., Theoretical Soil Mechanics, John Wiley, New York USA, 1943.

Commissioning of the MACE gamma-ray telescope at Hanle, Ladakh, India

Abstract Views :92 | PDF Views:20

Authors

K. K. Yadav ¹, N. Chouhan ², R. Thubstan ², S. Norlha ², J. Hariharan ², C. Borwankar ², P. Chandra ², V. K. Dhar ¹, N. Mankuzhyil ², S. Godambe ², M. Sharma ², K. Venugopal ², K. K. Singh ¹, N. Bhatt ², S. Bhattacharyya ¹, K. Chanchalani ², M. P. Das ², B. Ghosal ², S. Godiyal ², M. Khurana ², S. V. Kotwal ², M. K. Koul ², N. Kumar ², C. P. Kushwaha ², K. Nand ², A. Pathania ², S. Sahayanathan ¹, D. Sarkar ², A. Tolamati ², R. Koul ³, R. C. Rannot ⁴, A. K. Tickoo ⁵, V. R. Chitnis ⁶, A. Behere ⁷, S. Padmini ⁷, A. Manna ⁷, S. Joy ⁷, P. M. Nair ⁷, K. P. Jha ⁷, S. Moitra ⁷, S. Neema ⁷, S. Srivastava ⁷, M. Punna ⁷, S. Mohanan ⁷, S. S. Sikder ⁷, A. Jain ⁷, S. Banerjee ⁷, Krati ⁷, J. Deshpande ⁷, V. Sanadhya ⁸, G. Andrew ⁸, M. B. Patil ⁸, V. K. Goyal ⁸, N. Gupta ⁸, H. Balakrishna ⁸, A. Agrawal ⁸, S. P. Srivastava ⁹, K. N. Karn ⁹, P. I. Hadgali ⁹, S. Bhatt ⁹, V. K. Mishra ⁹, P. K. Biswas ⁹, R. K Gupta ⁹, A. Kumar ⁹, S. G. Thul ⁹, R. Kalmady ¹⁰, D. D. Sonvane ¹⁰, V. Kumar ¹⁰, U. K. Gaur ¹⁰, J. Chattopadhyay ¹¹, S. K. Gupta ¹¹, A. R. Kiran ¹¹, Y. Parulekar ¹¹, M. K. Agrawal ¹¹, R. M. Parmar ¹¹, G. R. Reddy ¹², Y. S. Mayya ¹³, C. K. Pithawa ¹⁴

Affiliations
1 Astrophysical Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Mumbai 400 085, India, IN
2 Astrophysical Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
3 Formerly at Astrophysical Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
4 Raja Ramanna Fellow at Astrophysical Sciences Division, Mumbai 400 085, India, IN
5 Deceased, IN
6 Department of High Energy Physics, Tata Institute of Fundamental Research, Mumbai 400 005, India, IN
7 Electronics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
8 Control and Instrumentation Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
9 Center for Design and Manufacture, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
10 Computer Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
11 Reactor Safety Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
12 Formerly at Reactor Safety Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
13 Formerly at Reactor Control Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
14 Formerly at Electronics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN

Source

Current Science, Vol 123, No 12 (2022), Pagination: 1428-1435

Abstract

The MACE telescope has recently been commissioned at Hanle, Ladakh, India. It had its first light in April 2021 with a successful detection of very high energy gamma-ray photons from the standard candle Crab Nebula. Equipped with a large light collector of 21 m diameter and situated at an altitude of ~4.3 km amsl, the MACE telescope is expected to explore the mysteries of the non-thermal Universe in the energy range above 20 GeV with very high sensitivity. It can also play an important role in carrying out multi-messenger astronomy in India.

Keywords

Gamma-ray astronomy, high energy radiative processes, non-thermal Universe, telescope.

Full Text

References

Weekes, T. C. et al., Observation of TeV gamma rays from the crab nebula using the atmospheric Cerenkov imaging technique. Astro-phys. J., 1989, 342, 379–395.

Ong, R. A., Very high energy gamma-ray astronomy. Phys. Rep., 1998, 305, 93–202.

Hillas, A. M., Evolution of ground-based gamma-ray astronomy from the early days to the Cherenkov Telescope Arrays. Astropart.Phys., 2013, 43, 19–43.

Chadwick, P., 35 Years of ground-based gamma-ray astronomy. Universe, 2021, 7, 432.

http://tevcat.uchicago.edu (accessed on 15 July 2022).

Fegan, D. J., Topical review: γ/hadron separation at TeV energies. J. Phys. G., 1997, 23, 1013–1060.

Aharonian, F. et al., High energy astrophysics with ground-based gamma ray detectors. Rep. Prog. Phys., 2008, 71, 096901.

Holder, J., Atmospheric Cherenkov gamma-ray telescopes; arXiv: 1510.05675.

Di Sciascio, G., Ground-based gamma-ray astronomy: an introduc-tion. J. Phys., Conf. Ser., 2019, 1263, 012003.

Koul, R. et al., The TACTIC atmospheric Cherenkov imaging tele-scope. Nucl. Instrum. Methods Phys. Res. A, 2007, 578, 548–564.

Singh, K. K. and Yadav, K. K., 20 Years of Indian gamma ray as-tronomy using imaging Cherenkov telescopes and road ahead. Uni-verse, 2021, 7, 96.

Singh, K. K., Gamma-ray astronomy with the imaging atmospheric Cherenkov telescopes in India. J. Astrophys. Astron., 2022, 43, 3.

Ajello, M. et al., Fermi large area telescope performance after 10 years of operation. Astrophys. J. Suppl., 2021, 256, 12.

Borwankar, C. et al., Simulation studies of MACE-I: trigger rates and energy thresholds. Astropart. Phys., 2016, 84, 97–106.

Borwankar, C. et al., Estimation of expected performance for the MACE γ-ray telescope in low zenith angle range. Nucl. Instrum.Methods Phys. Res. A, 2020, 953, 163182.

Sharma, M. et al., Sensitivity estimate of the MACE gamma ray telescope. Nucl. Instrum. Methods Phys. Res. A, 2017, 851, 125–131.

Dhar, V. K. et al., Development of a new type of metallic mirrors for 21 meter MACE γ-ray telescope. J. Astrophys. Astron., 2022, 43, 17.

Hillas, A. M., Cerenkov light images of EAS produced by primary gamma rays and by nuclei. In 19th International Cosmic Ray Con-ference, San Diego, CA, United States, 1985, vol. 3, p. 445.

Li, T. P. and Ma, Y. Q., Analysis methods for results in gamma-ray astronomy. Astrophys. J., 1983, 272, 317–324.

Yadav, K. K. et al., Status update of the MACE gamma-ray tele-scope. In Proceeding of Science, 37th International Cosmic Ray Conference, Berlin, Germany, 2021, p. 756.

Albert, J. et al., VHE gamma-ray observation of the Crab Nebula and its pulsar with the MAGIC telescope. Astrophys. J., 2008, 674, 1037–1055.

Tolamatti, A. et al., Feasibility study of observing γ-ray emission from high redshift blazars using the MACE telescope. J. Astrophys.Astron., 2022, 43, 49.

Singh, K. K. et al., Probing the evolution of the EBL photon density out to z ∼ 1 via γ-ray propagation measurements with Fermi. Astro-phys. Space Sci., 2021, 366, 51

Username
Password
Remember me

Informatics Publishing Limited

Author Details

Reddy, G. R.

Rare Earth Element Geochemistry of Basalt-Spilite Association of Bombay and Carlsberg Ridge-A Preliminary Study

Authors

Source

Abstract

Full Text

Rare Earth Geochemistry of Basalts from the 'FAMOUS' Area Mid-Atlantic Rift Valley-A Preliminary Study

Authors

Source

Abstract

Full Text

Petrogenetic Significance of Rare Earth Element Patterns of Selected Samples of Ingaldhal Metavolcanics, Karnataka State, India: Consortium Studies No.1

Authors

Source

Abstract

Full Text

Natural Base Isolation System for Earthquake Protection

Authors

Source

Abstract

Keywords

Full Text

Comparative Studies on Quality Assessment of Trachyspermum Ammi Linn. Seeds Collected from Different locations of Punjab State

Authors

Source

Abstract

Keywords

Full Text

A Comparative Assessment of the Seismic Response of an Earthen Dam Using Analytical Simulation and Empirical Methods

Authors

Source

Abstract

Keywords

Full Text

References

Study of a Surface Raft Foundation in Dry Cohesionless Soil Subjected to Dynamic Loading

Authors

Source

Abstract

Keywords

Full Text

References

Commissioning of the MACE gamma-ray telescope at Hanle, Ladakh, India

Authors

Source

Abstract

Keywords

Full Text

References