Zobrazeno 1 - 10
of 291
pro vyhledávání: '"Shibu K"'
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 39 (2024)
We report and discuss the phase shift and phase travel time of low-frequency ( ν < 5.0 mHz) acoustic waves estimated within the photosphere and photosphere–chromosphere interface regions, utilizing multiheight velocities in the quiet Sun. The bise
Externí odkaz:
https://doaj.org/article/453d19c3fe3b4f2ba35e2351b9674f43
Publikováno v:
Results in Optics, Vol 9, Iss , Pp 100292- (2022)
To achieve diffraction-limited performance with a 50 cm solar telescope at the Udaipur solar observatory the development of a high-order adaptive optics (AO) system is currently in progress. The system includes a monomorph deformable mirror (MDM) wit
Externí odkaz:
https://doaj.org/article/034e1da422ae41e8a5a6ff8b91573f2e
Autor:
Jaisoorya T. S., Shiju Joseph, Kalarani K. S., Maya Menon, Smita G. S., Shini V. S., Sheril Elizabeth Jose, Mahesh M. M., Shibu K, Sujisha T. G., Jayaprakashan K. P., Kiran P. S., Anil Kumar T. V., Vigneshwari V., Usha Titus
Publikováno v:
Indian Journal of Psychological Medicine, Vol 45 (2022)
Background: Mental health issues are common among college students, and structured services have been proven to enhance outcomes. Despite increased enrolment for higher education in India, college mental health services remain sparse. JEEVANI is the
Externí odkaz:
https://doaj.org/article/12b703fde4274e2987894a2c8f52b327
Publikováno v:
Remote Sensing, Vol 15, Iss 13, p 3300 (2023)
Spectral unmixing of geological mixtures, such as rocks, is a challenging inversion problem because of nonlinear interactions of light with the intimately mixed minerals at a microscopic scale. The fine-scale mixing of minerals in rocks limits the se
Externí odkaz:
https://doaj.org/article/380285b09190478a96b4f58fcab5b30c
Publikováno v:
Progress in Disaster Science, Vol 14, Iss , Pp 100219- (2022)
Urban Communities are exposed to different disaster risks. The paper aims at understanding the interrelation of spatial planning and the resilience of the urban communities for earthquakes and floods. Various spatial planning components were used to
Externí odkaz:
https://doaj.org/article/9ce9899fb5734475bae43030245036bb
We report and discuss phase-shift and phase travel time of low-frequency ({\nu} < 5.0 mHz) acoustic waves estimated within the photosphere and photosphere-chromosphere interface regions, utilizing multi-height velocities in the quiet Sun. The bisecto
Externí odkaz:
http://arxiv.org/abs/2406.19789
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 2, p 62 (2023)
Sunspot light bridges (LBs) exhibit a wide range of short-lived phenomena in the chromosphere and transition region. In contrast, we use here data from the Multi-Application Solar Telescope (MAST), the Interface Region Imaging Spectrograph (IRIS), Hi
Externí odkaz:
https://doaj.org/article/6361931d07534f3c9a22a445eba94fe2
Autor:
Shibu K. Balakrishnan, Rakesh P. Suseela, Sunilkumar Mrithyunjayan, Manu E. Mathew, Suresh Varghese, Shubin Chenayil, Suja Aloysius, Twinkle Prabhakaran, Sreenivas A. Nair
Publikováno v:
Tropical Medicine and Infectious Disease, Vol 7, Iss 12, p 441 (2022)
Community-based active TB case finding (ACF) has become an essential part of TB elimination efforts in high-burden settings. In settings such as the state of Kerala in India, which has reported an annual decline of 7.5% in the estimated TB incidence
Externí odkaz:
https://doaj.org/article/f5abae75a31543cab0dff6a4571ece91
The magnetic and velocity fields in sunspots are highly structured on small spatial scales which are encoded in the Stokes profiles. Our aim is to identify Stokes profiles in a sunspot which exhibit spectral characteristics that deviate from those as
Externí odkaz:
http://arxiv.org/abs/2401.03908
Autor:
Abhishek K. Srivastava, Scott W. McIntosh, N. Arge, Dipankar Banerjee, Mausumi Dikpati, Bhola N. Dwivedi, Madhulika Guhathakurta, B.B. Karak, Robert J. Leamon, Shibu K. Matthew, Andres Munoz-Jaramillo, D. Nandy, Aimee Norton, L. Upton, S. Chatterjee, Rakesh Mazumder, Yamini K. Rao, Rahul Yadav
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 5 (2018)
In 1844 Schwabe discovered that the number of sunspots increased and decreased over a period of about 11 years, that variation became known as the sunspot cycle. Almost eighty years later, Hale described the nature of the Sun's magnetic field, identi
Externí odkaz:
https://doaj.org/article/65cbb81bdb034ac1a604775b78363008