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Choudhary, R. K.
- Floristic Scenario of Itanagar Wildlife Sanctuary : a Case Study
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Indian Forester, Vol 133, No 10 (2007), Pagination: 1425-1428Abstract
No abstract
- Field Performace of some Cultiv Ars of Indian Gooseberry (Emblica officinalis Gaertn) against Bark Eating Caterpillar Indarbela quadrinotata (Walker)
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Indian Forester, Vol 131, No 1 (2005), Pagination: 131-133Abstract
No abstract- Dual Frequency Radio Science Experiment Onboard Chandrayaan-2:A Radio Occultation Technique to Study Temporal and Spatial Variations in the Surface-Bound Ionosphere of the Moon
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Authors
R. K. Choudhary
1,
K. R. Bindu
2,
Kumar Harshit
2,
Rahul Karkara
2,
K. M. Ambili
1,
T. K. Pant
1,
Devadas Shenoy
2,
Chandrakanta Kumar
2,
N. Hemanth Kumar Reddy
2,
T. K. Rajendran
3,
M. Nazer
1,
M. Shajahan
1
Affiliations
1 Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, IN
2 U.R. Rao Satellite Centre, Bengaluru 560 017, IN
3 ISRO Telemetry, Tracking, and Command Network, Bengaluru 560 058, IN
1 Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, IN
2 U.R. Rao Satellite Centre, Bengaluru 560 017, IN
3 ISRO Telemetry, Tracking, and Command Network, Bengaluru 560 058, IN
Source
Current Science, Vol 118, No 2 (2020), Pagination: 210-218Abstract
The Dual Frequency Radio Science experiment aboard Chandrayaan-2 uses the communication channel between orbiter and ground in radio occultation mode to study the temporal evolution of electron density in the lunar ionosphere. It consists of a highly stable 20 MHz evacuated miniaturized crystal oscillator source, having a stability of the order of 10–11, which generates two coherent signals at the X (8496 MHz) and S (2240 MHz) bands of radio frequencies. The coherent radio signals, transmitted simultaneously from the satellite and received at the ground-based deep station network receivers would be used to study temporal and spatial variations in the lunar ionosphere. The major science objectives of the experiments include: (i) to study variations in the ionosphere/ atmosphere of the Moon; (ii) to explore if the ionosphere of the Moon is omnipresent or has episodic appearances, and (iii) to confirm the source of ions in the lunar ionosphere – whether dusty or molecular.Keywords
Chandrayaan, Ionosphere, Moon, Radio Occultation.Full Text
References
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- Impact of COVID-19 in Academic Libraries of Sikkim: A Study
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Authors
Affiliations
1 Research Scholar, Department of Library and Information Science, Mahatma Gandhi Central University, Motihari, Bihar., IN
2 Head and Supervisor, Department of Library and Information Science, Mahatma Gandhi Central University, Motihari, Bihar., IN
1 Research Scholar, Department of Library and Information Science, Mahatma Gandhi Central University, Motihari, Bihar., IN
2 Head and Supervisor, Department of Library and Information Science, Mahatma Gandhi Central University, Motihari, Bihar., IN
Source
International Journal of Information Studies & Libraries, Vol 7, No 1 (2022), Pagination: 57-63Abstract
The major outbreak of the novel coronavirus (COVID-19) at the end of 2019 caused a huge impact globally in almost all the sectors. Even academic libraries experienced a major impact of this virus. Hence, this article aims to study how this virus affected people globally and its impact on four major areas of academic libraries, like library working hours, library services, preventive measures taken, and also the enhanced services provided by the academic libraries of Sikkim. The study also tries to identify the loophole that originated and further plans to cope with it in the future by the academic libraries of Sikkim. The data was collected through a structured questionnaire, followed by an interview, and distributed to the librarians of all the government degree colleges affiliated with Sikkim University, Sikkim. Purposive sampling has been executed during the study. The paper finds the major problem of library services during this pandemic is the unavailability of e-resources in any of the college libraries in Sikkim, thereby where they provided very few services to its users. The study also finds that the plan to have e-resources in the library has been taken up by a few of the libraries. Several recommendations have been made to help libraries provide services in the upcoming days, to tackle this kind of pandemic and other disasters in the library.Keywords
COVID-19; Pandemic; Academic Libraries; Resources; Library Services; SikkimReferences
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- Chakraborty, S., & Jana, S. (2021). Challenges and opportunities of academic libraries in India because of COVID-19. Annals of Library and Information Studies, 68, 110-118.
- Chisita, C. T., Chiparausha, B., Tsabetse, V., Olugbara, C. T., & Letseka, M. (2022). Remaking academic library services in Zimbabwe in the wake of COVID-19 pandemic. The Journal of Academic Librarianship, 48, 1-7, doi:https://doi.org/10.1016/j. acalib.2022.102521/
- Connell, R., Wallis, L., & Comeaux, D. (2021). The impact of COVID-19 on the use of academic library resources. Information Technology and Libraries, 1-35. Retrieved from https://digitalcommons.lsu. edu/libraries_pubs/
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