Search Results - "Iyer, K. N."

TEC variations during low solar activity period (2005―2007) near the Equatorial Ionospheric Anomaly Crest region in India by BAGIYA, Mala S, JOSHI, H. P, IYER, K. N, AGGARWAL, M, RAVINDRAN, S, PATHAN, B. M

“…The dual frequency signals from the GPS satellites recorded at Rajkot (22.29° N, 70.74° E, Geographic, 14.03° N Geomagnetic) near the Equatorial ionization…”
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Low-latitude ionospheric-thermospheric response to storm time electrodynamical coupling between high and low latitudes by Bagiya, Mala S., Iyer, K. N., Joshi, H. P., Thampi, Smitha V., Tsugawa, Takuya, Ravindran, Sudha, Sridharan, R., Pathan, B. M.

“…Using multi‐instrumental and multistation data, we present low‐latitude ionospheric‐thermospheric behavior during the geomagnetic storm of 15 May 2005. The…”
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Thermospheric meridional wind control of equatorial spread F and evening prereversal electric field by Abdu, M. A., Iyer, K. N., de Medeiros, R. T., Batista, I. S., Sobral, J. H. A.

“…The role of the evening prereversal zonal electric field enhancement (PRE) as conducive to equatorial spread F (ESF)/plasma bubble development versus that of…”
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Experimental investigations on melting of lead in a cuboid with constant heat flux boundary condition using thermal neutron radiography by Kumar, Lokendra, Manjunath, B.S., Patel, R.J., Markandeya, S.G., Agrawal, R.G., Agrawal, Ashish, Kashyap, Y., Sarkar, P.S., Sinha, Amar, Iyer, K.N., Prabhu, S.V.

“…Knowledge of the melting of lead (shielding material) in enclosures is of great importance in the design of transportation packages. An experimental…”
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Day-to-day variability of equatorial anomaly in GPS-TEC during low solar activity period by Aggarwal, Malini, Joshi, H.P., Iyer, K.N., Kwak, Y.-S., Lee, J.J., Chandra, H., Cho, K.S.

“…The ionospheric total electron content (TEC) in the northern hemispheric equatorial ionization anomaly (EIA) crest region is investigated by using…”
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Long‐term variations of surface air temperature during summer in India by Ganguly, Nandita D., Iyer, K. N.

“…Increase in our earth's surface air temperature has been a subject of major concern in the recent years, as it may destroy the existing ecosystem and exert…”
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Differential rotation measurement of soft X-ray corona by Chandra, Satish, Vats, Hari Om, Iyer, K. N.

“…The aim of this paper is to study the latitudinal variation in the solar rotation in soft X-ray corona. The time series bins are formed on different latitude…”
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Long-term trend in ozone and erythemal UV at indian latitudes by GANGULY, Nandita D, IYER, K. N

“…The role of atmospheric ozone to protect the living organisms and vegetation from the harmful effects of ultraviolet irradiation is well known. Depletion of…”
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LAXPC/AstroSat Study of ∼1 and ∼2 mHz Quasi-periodic Oscillations in the Be/X-Ray Binary 4U 0115+63 during Its 2015 Outburst by Roy, Jayashree, Agrawal, P. C., Iyer, N. K., Bhattacharya, D., Yadav, J. S., Antia, H. M., Chauhan, J. V., Choudhury, M., Dedhia, D. K., Katoch, T., Madhavani, P., Manchanda, R. K., Misra, R., Pahari, M., Paul, B., Shah, P.

“…The Be/X-ray binary 4U 0115+63 was observed by the Large Area X-ray Proportional Counter (LAXPC) instrument on AstroSat on 2015 October 24 during the peak of a…”
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Experimental and numerical studies of choked flow through adiabatic and diabatic capillary tubes by Deodhar, Subodh D., Kothadia, Hardik B., Iyer, K.N., Prabhu, S.V.

“…Capillary tubes are extensively used in several cooling applications like refrigeration, electronic cooling etc. Local pressure variation in adiabatic straight…”
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Characterization of the full cone pressure swirl spray nozzles for the nuclear reactor containment spray system by Jain, Manish, John, Benny, Iyer, K.N., Prabhu, S.V.

“…•Full cone spray pressure swirl nozzle with X-Vane is studied.•Laser illuminated imaging technique is used.•Correlations for coefficient of discharge, spray…”
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Equatorial spread F irregularity characteristics over São Luís, Brazil, using VHF radar and GPS scintillation techniques by Rodrigues, F. S., de Paula, E. R., Abdu, M. A., Jardim, A. C., Iyer, K. N., Kintner, P. M., Hysell, D. L.

“…Multitechnique observations may considerably improve our understanding of factors responsible for the generation, growth, and dynamics of the destabilized…”
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Solar activity dependence of electron and ion temperatures using SROSS C2 RPA data and comparison with IRI model by Aggarwal, Malini, Joshi, H.P., Iyer, K.N.

“…Electron and ion temperature ( T e and T i) data observed using RPA on board SROSS C2 satellite are investigated for the variation with local time, season,…”
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Multi-technique investigations of storm-time ionospheric irregularities over the São Luís equatorial station in Brazil by DE PAULA, E. R, IYER, K. N, HYSELL, D. L, RODRIGUES, F. S, KHERANI, E. A, JARDIM, A. C, REZENDE, L. F. C, DUTRA, S. G, TRIVEDI, N. B

“…On 11 April 2001, a large magnetic storm occurred with SSC at 13:43 UT, and Dst reached below -200nT after two southward Bz excursions. The Kp index during…”
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Can El Niño induce stratosphere–troposphere exchange of ozone? by Ganguly, Nandita D., Iyer, K. N.

“…The possibility of stratosphere–troposphere exchange (STE) of ozone induced by El Niño has been studied over the Indian region for two events spanning the…”
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Equatorial anomaly effects on GPS scintillations in brazil by de Paula, E.R, Rodrigues, F.S, Iyer, K.N, Kantor, I.J, Abdu, M.A, Kintner, P.M, Ledvina, B.M, Kil, H

“…In a collaborative study, INPE and Cornell University have installed several Global Positioning System (GPS) based scintillation monitors over the Brazilian…”
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Response of the EIA ionosphere to the 7-8 May 2005 geomagnetic storm by Aggarwal, Malini, Joshi, H.P., Iyer, K.N., Kwak, Y.S.

“…•We studied response of low-latitude ionosphere to a moderate geomagnetic storm of 7-8 May 2005 from a near EIA crest region.•A significant enhancement of TEC…”
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Coronal mass ejection of 4 April 2000 and associated space weather effects by Jadav, R.M., Iyer, K.N., Joshi, H.P., Vats, Hari Om

“…The effects of a Halo Coronal Mass Ejection (CME) erupted on 4 April 2000 are studied and reported here. The effect of such CME on the interplanetary medium…”
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Equatorial electrojet 3-M irregularity dynamics during magnetic disturbances over Brazil: results from the new VHF radar at Sao Luis by Abdu, MA, Dinardini, C M, Sobral, JHA, Batista, I S, Muralikrishna, P, Iyer, K N, Veliz, O, De Paula, ER

“…Data collected during the first two observational campaigns, conducted in August 1998 and December 1999, using the new 50 MHz coherent back-scatter radar,…”
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Experimental investigation of iodine removal and containment depressurization in containment spray system test facility of 700 MWe Indian pressurized heavy water reactors by Jain, Manish, Kandar, T.K., Vhora, S.F., Mohan, Nalini, Iyer, K.N., Prabhu, S.V.

“…As an additional safety measure in the new 700 MWe Indian pressurized heavy water reactors, the first of a kind system called containment Spray System is…”
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