Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Kiran Jain"'
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 194 (2024)
We investigate the spatiotemporal evolution of high-degree acoustic-mode frequencies of the Sun and surface magnetic activity over the course of multiple solar cycles, to improve our understanding of the connection between the solar interior and atmo
Externí odkaz:
https://doaj.org/article/51b9e874a08a4cfd993ecffeaec5d515
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Externí odkaz:
https://doaj.org/article/fcee19fb190a4924ae50bafc4b36571b
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
The extreme space weather conditions resulting from high energetic events likes solar flares and Coronal Mass Ejections demand for reliable space weather forecasting. The magnetic flux tubes while rising through the convection zone gets twisted by th
Externí odkaz:
https://doaj.org/article/caa90185684942a8bb95362bf281ef55
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 1, p 16 (2023)
We studied the temporal evolution of quasi-biennial oscillations (QBOs) using acoustic mode oscillation frequencies from the Global Oscillation Network Group. The data used here span more than 25 yr, covering solar cycles 23 and 24 and the ascending
Externí odkaz:
https://doaj.org/article/6eca1a1898ca433d8536f15752c76575
Publikováno v:
Arabian Journal of Chemistry, Vol 10, Iss S2, Pp S1795-S1801 (2017)
A new series of the complexes has been prepared by template condensation reaction of dimedone and carbohydrazide in the methanolic medium forming the complexes of the type [M(TML)X]X2; where TML is a tetradentate macrocyclic ligand; M = Cr(III), Fe(I
Externí odkaz:
https://doaj.org/article/f94baa35efb84331820933d621ef46f8
Publikováno v:
Journal of the Serbian Chemical Society, Vol 76, Iss 3, Pp 385-393 (2011)
A novel series of complexes of the type [M(C28H18N6)X2], where M=Co(II), Ni(II), Cu(II) or Zn(II) and X = Cl-, NO3- or CH3COO-, were synthesized by template condensation of isatin and 1,2-diaminobenzene in methanolic medium. The complexes were charac
Externí odkaz:
https://doaj.org/article/3be031f6eb28486b9b610609dbca162d
Autor:
Vibha Srivastava, Kiran Jain
Publikováno v:
Sensors & Transducers, Vol 117, Iss 6, Pp 120-128 (2010)
Ammonia gas sensing properties of tungsten trioxide thick film sensor was investigated. The doping of noble catalysts such as Pt, Pd, Au enhanced the gas sensitivity. Platinum doping was found to result in highest sensitivity. Remarkable sensitivity
Externí odkaz:
https://doaj.org/article/24150dbce7c8449cae222feedf6b1454
Publikováno v:
Sensors & Transducers, Vol 107, Iss 8, Pp 99-110 (2009)
The sol–gel method was used to prepare WO3 powder as well as film. The addition of block copolymer F 127 surfactant during synthesis resulted in a highly porous structure with reduced grain size. WO3 thin films prepared without surfactant addition
Externí odkaz:
https://doaj.org/article/b13d84998796443895bdbbeeadbf1af4
Publikováno v:
Sensors & Transducers, Vol 101, Iss 2, Pp 60-72 (2009)
Cobalt doped thick films tin oxide sensors were studied for their LPG and CNG gas sensitivity. SnO2 powder was synthesized by precipitation technique and doped with cobalt sulphate (0 to 10 wt %) by impregnation technique. The sensing characteristics
Externí odkaz:
https://doaj.org/article/e0071372fec5491f89386ce893e212cb
The Sun's magnetic field varies in multiple time scales. Observations show that the minimum between cycles 24 and 25 was the second consecutive minimum which was deeper and wider than several earlier minima. Since the active regions observed at the S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::472c0d238ddbed5667dba2e3127ef3ce
http://arxiv.org/abs/2111.14323
http://arxiv.org/abs/2111.14323