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Srivastava, G. P.
- Resin-Embedded Insects and Other Organic Remains from Warkalli Formation, Kerala Coast, India
Abstract Views :202 |
PDF Views:2
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow - 226 007, IN
2 Zoology Department, University of Lucknow, Lucknow - 226 007, IN
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow - 226 007, IN
2 Zoology Department, University of Lucknow, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 56, No 3 (2000), Pagination: 315-319Abstract
A resin-embedded male Culex mosquito, beetle larvae and dwelling spaces viz., galleries and chambers of Ambrosia beetle were recovered from the shallow shoreline Tertiary sediments of Warkalli Formation exposed along Kerala coast. Lumps and rods of resin are found associated with the impure lignitic clay beds of the sequence. It indicates that the vegetation growing during that time was dominated by resin producing plants and the conditions were favourable for the insects to get entrapped in the gum. Such organic remains are useful in the study of fossil DNAKeywords
Palaeontology, Warkalli Formation, Resin, Fossil Mosquito, Kerala.
- Dispersed Organic Matter (DOM) Types and Depositional Environment of Neogene Sediments of Mahuadanr Valley, Palamu, Bihar
Abstract Views :180 |
PDF Views:2
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226007, IN
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 55, No 3 (2000), Pagination: 317-325Abstract
The organic matter dispersed in the upper Tertiary sediments of Mahuadanr valley has been studied in detail. It has been observed that the amorphous, structured terrestrial and biodegraded terrestrial organic matter represent the dominant types followed by black debris and fungal fruiting bodies. The dominance of amorphous organic matter suggests the prevalence of reducing conditions in the basin, patticularly during the deposition of the lower part of the sequence. The conditions gradually transformed into oxidising environment during the deposition of upper part of the succession. Besides this, the presence of black debris indicates moderate oxidising environment in the source area and also during the transport of the organic matter.Keywords
Depositional Environment, Dispersed Organic Matter, Neogene, Mahuadanr Valley, Bihar.- Volatile Displacement of Burnt Coals
Abstract Views :206 |
PDF Views:130
Authors
Affiliations
1 Department of Applied Geology, Indian School of Mines, Dhanbad 826004, IN
1 Department of Applied Geology, Indian School of Mines, Dhanbad 826004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 21, No 6 (1980), Pagination: 306-310Abstract
The volatile displacement of burnt coals has been compared with that of carbonized coals. A relation has been found between volatile displacement of burnt coals and its chemical composition, i.e., carbon and hydrogen contents.Full Text
- Record Of Pillbug (Armadillidium) and Millipede (Polyxenus) Remains from the Resin Lumps of Warkalli Formation (Upper Tertiary), Kerala Coast
Abstract Views :165 |
PDF Views:121
Authors
Affiliations
1 Geological Survey of India, Marine Wing, Mangalore-575001, IN
2 18/144, Indira Nagar, Lucknow-226016, IN
1 Geological Survey of India, Marine Wing, Mangalore-575001, IN
2 18/144, Indira Nagar, Lucknow-226016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 1 (2007), Pagination: 195-196Abstract
No Abstract.Full Text
- Record of Pillbug (Armadillidium) and Millipede (Polyxenus) Remains from the Resin Lumps of Warkalli formation (Upper Tertiary), Kerala Coast
Abstract Views :176 |
PDF Views:138
Authors
Affiliations
1 Birbal Sahni institute of Palaeobotany, 53 University Road, Lucknow- 226 007, IN
2 Zoology Department, University of Lucknow, Lucknow-226 007, IN
1 Birbal Sahni institute of Palaeobotany, 53 University Road, Lucknow- 226 007, IN
2 Zoology Department, University of Lucknow, Lucknow-226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 6 (2006), Pagination: 715-719Abstract
The remains of Pillbug and millipede from the resin lumps associated with the Tertiary sediments Kerala coast are reported here for the first time. These remains have been described as Armadillidium payangadensis sp nov and Polyxenus mecanica sp nov. The resin lumps containing Arthropod remains are Found associated with the Tertiary deposits( Warkalli Formation) exposed at several places along Kerala Coast. The fossil bearing resin lumps have been collected from Payangadi China Clay mine, Cannanore Kerala.Keywords
Warkalli Formation, Pillbug, Upper Tertiary, Millipede Resin, Kerala.Full Text
- Intelligent inspection technology for cross-country buried petroleum pipelines
Abstract Views :172 |
PDF Views:98
Authors
Affiliations
1 Control Instrumentation Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
2 Electromagnetic Applications and Instrumentation Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
3 Seismology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
4 Tower 6, Flat 401, Sagar Darshan, Sector 18, Navi Mumbai 400 706, India
1 Control Instrumentation Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
2 Electromagnetic Applications and Instrumentation Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
3 Seismology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
4 Tower 6, Flat 401, Sagar Darshan, Sector 18, Navi Mumbai 400 706, India
Source
Current Science, Vol 123, No 3 (2022), Pagination: 396-405Abstract
A case study is presented here on the continued development efforts at the Bhabha Atomic Research Centre on instrumented pipeline inspection gauge for Indian Oil Corporation Limited over the last two decades. A marvel of technology involving challenges of non-destructive testing techniques, mechanical, magnetism, electronics, data processing and analysis, operational safety requirements and portability, qualifications of the tools and characterization of defects with acceptable accuracy were achieved to be at par with the internationally available tools. These tools are being extensively deployed in the field. The homegrown technology for in-line inspection has brought down the cost of the tool and that of the services per kilometre. Different technologies are now being pursued to ensure that the in-line inspection work in the country is carried out in an ‘Atmanirbhar’ way.Full Text
References
- Bhattacharya, S., Mahapatra, U. and Srivastava, G. P., Instrumented pipeline inspection gauge (IPIG) for IOCL. BARC Newsletter, June 1999, Issue No. 185.
- Mukhopadhyay, S. and Srivastava, G. P., Characterization of metal loss defects from magnetic flux leakage signals with discrete wavelet transform. NDT&E Int., 2000, 33(1), 57–65.
- Mukherjee, D., Saha, S. and Mukhopadhyay, S., An adaptive channel equalization algorithm for MFL signal. NDT&E Int., 2012, 45(1), 111–119.
- Saha, S., Mukhopadhyay, S., Mahapatra, U., Bhattacharya, S. and Srivastava, G. P., Empirical structure for characterizing metal loss 43(6), 507–512.
- Mukherjee, D., Saha, S. and Mukhopadhyay, S., Inverse mapping of magnetic flux leakage signal for defect characterization. NDT&E Int., 2013, 54, 198–208.
- Bahuguna, S. K., Dhage, S., Mukhopadhyay, S. and Taly, Y. K., DSP–FPGA-based parallel architecture for acquisition and compression of instrumented pipeline inspection gauge data in real time. In Proceedings of International Conference on VLSI, Communication, Advanced Devices, Signals & Systems and Networking (VCASAN-2013), Springer, India, 2013.
- Kathirmani, S., Tangirala, A. K., Saha, S. and Mukhopadhyay, S., Online data compression of MFL signals for pipeline inspection. NDT&E Int., 2012, 50, 1–9.
- Mukhopadhyay, S. et al., Development of next generation inline inspection technologies. In PETROTECH-12, Tenth International Oil and Gas Conference and Exhibition under the Aegis of Ministry of Petroleum and Natural Gas, Government of India, 2012.
- Saha, S., Ramrane, S. C., Mukherjee, D., Chandra, Y., Lahiri, S. K., Marathe, P. P. and Bagchi, A. C., Development of external pipeline inspection gauge for monitoring the health of industrial carbon steel pipelines. BARC Newslett., May–June 2017.
- Mukherjee, D. et al., Development of secondary sensor system based on eddy current technology for in-line inspection tool. BARC Newslett., November–December 2013, Issue No. 335.
- Controlling telescopes, antennas and airborne radars: BARC’s five-decade-long journey from Ooty to Hanle
Abstract Views :169 |
PDF Views:83
Authors
Affiliations
1 55 Sreeniketan, Anushaktinagar, Mumbai 400 094, India
2 Tower 6, Flat 401, Sagar Darshan, Sector 18, Navi Mumbai 400 706, India
3 Flat A-107, Nana Nani Phase 4, Kasthurinaicken Palayam, Coimbatore 641 041, India
1 55 Sreeniketan, Anushaktinagar, Mumbai 400 094, India
2 Tower 6, Flat 401, Sagar Darshan, Sector 18, Navi Mumbai 400 706, India
3 Flat A-107, Nana Nani Phase 4, Kasthurinaicken Palayam, Coimbatore 641 041, India
Source
Current Science, Vol 123, No 3 (2022), Pagination: 406-416Abstract
This article provides a case study of antenna control servo system development in the Department of Atomic Energy over the last five decades, starting with the pioneering efforts for Ooty Radio Telescope (1970) and Arvi Earth Station (1971). While tracing the evolution of technology, the challenges and motivations, we evaluate these efforts against the basic tenets espoused by Homi Bhabha and Vikram Sarabhai for the growth of science and technology in India, viz. self-reliance with commercial viability.Full Text
References
- Ananthakrishnan, S. and Balasubramanian, V., Beginnings and growth of radio astronomy in TIFR: the Ooty Radio Telescope and the Giant Metrewave Radio Telescope. Resonance, 2021, 26(7), 895–917.
- Rao, K. R., AVSM, Project management and installation of the Arvi Satellite Communication Earth Station. IETE J. Res., 1972, 561–570.
- Mayya, Y. S., Sanadhya, V., Goyal, V., Balakrishnana, H., Gupta, N., Deodhar, V. and Narvekar, J. P., Design and development of antenna platform for LCA multi-mode radar. BARC Newsl., 2007.
- Sanadhya, V., Goyal, V., Kurup, P. and Mayya, Y. S., Analysis and design of Servo System for IDSN32. In National Workshop on the Design of Antenna and Radar Systems, ISTRAC-ISRO, DARS, 2009.
- Gupta, N., Goyal, V. and Sanadhya, V., System identification of the IDSN32M antenna control system model. In Indian Conference on Antenna and Propagation, IEEE, Hyderabad, 2018.
- Gupta, N., Patil, M. B., Sanadhya, V. and Mayya, Y. S., Active Mirror Alignment Control System (AMCS) for MACE telescope: realization and testing of subsystems. In National Symposium on Nuclear Instrumentation, BARC, Mumbai, 2013.