Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Subhasis Panja"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract Modern atomic clocks based on the interrogation of an atomic transitions in the optical regions require multiple lasers at different wavelength for producing atomic ions, trapping and laser cooling of neutral atoms or atomic ions. In order t
Externí odkaz:
https://doaj.org/article/a4c225cd065545468d9c699caea721a0
Publikováno v:
Sensors, Vol 24, Iss 2, p 381 (2024)
White Rabbit (WR) is an optical fibre-based time-frequency synchronization technology typically used in timekeeping laboratories for distributing time-frequency signals from a reference clock to distant locations. The accuracy of the received signals
Externí odkaz:
https://doaj.org/article/245f67cc84b34f07b79d4a3a69d59f66
Publikováno v:
Atoms, Vol 11, Iss 5, p 83 (2023)
We report the frequency stabilization of an external cavity diode laser (ECDL) to a reference molecular iodine (I2) transition at 13,531.18 cm−1 (739.03382 nm). Using the Modulation Transfer Spectroscopy (MTS) method for the highly sensitive detect
Externí odkaz:
https://doaj.org/article/d6616c7ef3d04c2d8b63ade63b543a8d
Publikováno v:
MAPAN.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1f846055561d17dc3fb718008a3bb14
https://doi.org/10.1007/s12647-023-00651-z
https://doi.org/10.1007/s12647-023-00651-z
Publikováno v:
IEEE Journal of Quantum Electronics. 58:1-6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9eafedaeb8fafa0ba6508ae4fc3a835
https://doi.org/10.1109/jqe.2022.3150428
https://doi.org/10.1109/jqe.2022.3150428
Publikováno v:
Hvelplund, P, Kadhane, U, Nielsen, S B, Panja, S & Støchkel, K 2010, ' On the formation of water-containing negatively charged clusters from atmospheric pressure corona discharge in air ', International Journal of Mass Spectrometry, vol. 292, no. 1-3, pp. 48-52 . https://doi.org/10.1016/j.ijms.2010.02.014
In this work we have studied the occurrence of negatively charged clusters in a corona discharge in atmospheric air at standard temperature and pressure. The discharge was operated in the point-to-plane configuration with a needle voltage of −1.2 k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15f280cf01593a968df6d579e4a72781
https://doi.org/10.1016/j.ijms.2010.02.014
https://doi.org/10.1016/j.ijms.2010.02.014
Publikováno v:
Turecek, F, Holm, A I S, Panja, S, Nielsen, S B & Hvelplund, P 2009, ' Transition metals as electron traps. II. Structures, energetics and electron transfer dissociations of ternary Co, Ni and Zn-peptide complexes in the gas phase ', Journal of Mass Spectrometry, vol. 44, no. 10, pp. 1518-1531 . https://doi.org/10.1002/jms.1642
Transition metal cations Co2+, Ni2+ and Zn2+ form 1 : 1 : 1 ternary complexes with 2,2′-bipyridine (bpy) and peptides in aqueous methanol solutions that have been studied for tripeptides GGG and GGL. Electrospray ionization of these solutions produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::262ef0b803287819b67de021c14de928
https://doi.org/10.1002/jms.1642
https://doi.org/10.1002/jms.1642
Autor:
Bohan Wu, Subhasis Panja, Ruth M. Burke, Caroline E. H. Dessent, Steen Brøndsted Nielsen, Christopher J. Taylor
Publikováno v:
Taylor, C J, Burke, R M, Wu, B, Panja, S, Nielsen, S B & Dessent, C 2009, ' Structural characterization of negatively charged glycosaminoglycans using high-enegy (50-150 keV) collisional activation ', International Journal of Mass Spectrometry, vol. 285, no. 1-2, pp. 70-77 . https://doi.org/10.1016/j.ijms.2009.04.009
Anionic glycosaminoglycan mono- and disaccharides (IVA, IH and IS) were subjected to very high-energy collisions (50–150 keV ion kinetic energy prior to collision) with Neon gas in an accelerator mass spectrometer, to explore the possibility of usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::592661c6808e5eb1fb5ad9cc9d0f1f6f
https://doi.org/10.1016/j.ijms.2009.04.009
https://doi.org/10.1016/j.ijms.2009.04.009
Autor:
Anne I. S. Holm, Subhasis Panja, Preben Hvelplund, Steen Brøndsted Nielsen, František Tureček, Jace W. Jones
Publikováno v:
Turecek, F, Jones, J W, Holm, A I S, Panja, S, Nielsen, S B & Hvelplund, P 2009, ' Transition metals as electron traps. I. Structures, energetics, electron capture, and electron-transfer-induced dissociations of ternary copper-peptide complexes in the gas phase ', Journal of Mass Spectrometry, vol. 44, no. 5, pp. 707-724 . https://doi.org/10.1002/jms.1546
Electron-induced dissociations of gas-phase ternary copper-2,2′-bipyridine complexes of Gly-Gly-Gly and Gly-Gly-Leu were studied on a time scale ranging from 130 ns to several milliseconds using a combination of charge-reversal (+CR−) and electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d7c67f7480733b8b08cf4af43cde113
https://doi.org/10.1002/jms.1546
https://doi.org/10.1002/jms.1546
Publikováno v:
Panja, S, Nielsen, S B, Hvelplund, P & Turecek, F 2008, ' Inverse Hydrogen Migration in Arginine-Containing Peptide Ions upon Electron Transfer ', Journal of The American Society for Mass Spectrometry, vol. 19, pp. 1726-1742 . https://doi.org/10.1016/j.jasms.2008.08.001
Collisional electron transfer from gaseous Cs atoms was studied for singly and doubly protonated peptides Gly-Arg (GR) and Ala-Arg (AR) at 50- and 100-keV kinetic energies. Singly protonated GR and AR were discharged to radicals that in part rearrang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d665e3d316b689b77bafd6582a3bcb55
https://doi.org/10.1016/j.jasms.2008.08.001
https://doi.org/10.1016/j.jasms.2008.08.001