Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Annu Jacob"'
The use of innovative ideas and the latest technology have undoubtedly brought down telescope costs substantially. However, there are still ways to further reduce the cost of optical ground-based telescopes and make them affordable to much larger and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63b88c82da6743c4e1b8cde73d7766e3
https://doi.org/10.21203/rs.3.rs-2060778/v1
https://doi.org/10.21203/rs.3.rs-2060778/v1
Publikováno v:
Women in Optics and Photonics in India 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5599aff188cdc148bd39a7e80254145
https://doi.org/10.1117/12.2669796
https://doi.org/10.1117/12.2669796
Publikováno v:
Ground-based and Airborne Telescopes IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70a48958383dfddbb82bee146e77ace9
https://doi.org/10.1117/12.2629948
https://doi.org/10.1117/12.2629948
Autor:
Annu Jacob, Anamparambu N. Ramaprakash, Chaitanya Rajarshi, Pravin Khodade, Hillol Das, Sabyasachi Chattopadhyay, Amitesh Omar
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0415d93198e871cd8b7da981a00fb8d
https://doi.org/10.1117/12.2629966
https://doi.org/10.1117/12.2629966
Publikováno v:
Experimental Astronomy. 50:51-71
The use of aspheric mirrors is a common practice to design astronomical telescopes with a few optical elements. In the most preferred optical design Ritchey Chretien (RC), both primary and secondary mirrors are hyperboloid. Nowadays large telescopes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebc2deeecd859b9d87328b2aa5eb1743
https://doi.org/10.1007/s10686-020-09663-y
https://doi.org/10.1007/s10686-020-09663-y
Autor:
Meega Annu Jacob, Nirmal Varghese Babu
Publikováno v:
Smart Computing Techniques and Applications ISBN: 9789811608773
A dataset that consists of both contactless and contact-based fingerprints was collected using various instruments like sensors, images, etc. Sensor Interoperability issue was handled using this system. Implementation of contactless fingerprint techn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e26475fda85b17ef8d8341e746407a96
https://doi.org/10.1007/978-981-16-0878-0_41
https://doi.org/10.1007/978-981-16-0878-0_41
Publikováno v:
Fourth International Conference on Applications of Optics and Photonics.
Use of aspheric mirrors is common practice to design astronomical telescope with just a few optical elements. For an example in the most preferred telescope optical design, Ritchy Chretien (RC) both primary and secondary mirrors are hyperbola. Nowada
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::089a2790c4c03b41d7e541af30e88cbe
https://doi.org/10.1117/12.2530932
https://doi.org/10.1117/12.2530932
Publikováno v:
Ground-based and Airborne Telescopes VII.
Alignment and Phasing system (APS) is one of essential device for any segmented mirror telescope. It helps to align and phase mirror segments, so that all together they works like a monolithic surface. Over last two years we have been exploring a pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::645418c8572818b0bdbde775a6c68530
https://doi.org/10.1117/12.2313096
https://doi.org/10.1117/12.2313096
Autor:
S. Nagabhusan, G. C. Anupama, Annu Jacob, K. V. Govinda, S. Amitkumar, Varun Kumar, Abhishek Goudar, S. Sriram, P. M. M. Kemkar, Padmakar Parihar, Prasanna Deshmukh, D. S. Sandeep
Publikováno v:
Ground-based and Airborne Telescopes VII.
To cater the need of growing astronomical community of India, there is a proposal to install 10-12m size optical-NIR telescope, equipped with state of the art back-end instruments . A telescope of this size is possible only, when primary mirror is ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f092b51197cfa76f5eb939850bbcaa1e
https://doi.org/10.1117/12.2313079
https://doi.org/10.1117/12.2313079
Autor:
Annu Jacob, Padmakar Parihar
Publikováno v:
SPIE Proceedings.
In the new era of astronomy, we go for bigger telescopes having segmented primary and secondary mirrors. But once segmentation is done, aligning and phasing mirror segments so that altogether they act like a monolithic mirror of a large diameter, bec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::733f7fcbba02a42bcfa267eca37f2759
https://doi.org/10.1117/12.2181778
https://doi.org/10.1117/12.2181778