Search Results - "Gireesh, G."
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A 1 bit Raw Voltage-recording System for Dedicated Observations of Transients at Low Radio Frequencies
Published in The Astrophysical journal. Supplement series (01-06-2024)“…Abstract Recently we had reported commissioning of a prototype for pulsar observations at low radio frequencies (<100 MHz) using log-periodic dipole antennas…”
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Solar Radio Spectro-polarimeter (50–500 MHz). I. Design, Development, and Characterization of a Cross-polarized, Log-periodic Dipole Antenna
Published in The Astrophysical journal (01-12-2023)“…Abstract The Zeeman effect has been routinely used to image and quantify the solar photospheric magnetic field (B). Such a direct measuring technique is not…”
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Contrasting effects of mismatch strain on the magnetic behavior of undoped and doped BaFeO3-δ thin films
Published in Journal of magnetism and magnetic materials (01-01-2021)“…•Effect of lattice mismatch strain on undoped/doped BaFeO3 thin films is studied.•Tensile and compressive strained films were prepared using PLD…”
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Optically assisted mm-wave-based multi-Gbps RoFSO transmission link under channel fading models
Published in Journal of modern optics (04-05-2022)“…Free space optic (FSO) communication offers a supplement to optical fibre for satisfying the demand of next-generation wireless networks. This paper signifies…”
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Outage probability and average BER estimation of FSO system employing wavelength diversity
Published in Optical and quantum electronics (01-07-2019)“…Free space optical (FSO) communication has gained significant attention among researchers for high bandwidth and secured data transfer applications. However,…”
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Radio Interferometric Observations of the Sun Using Commercial Dish TV Antennas
Published in Solar physics (01-08-2021)“…The radio astronomy group in the Indian Institute of Astrophysics (IIA) has been carrying out routine observations of radio emission from the solar corona at…”
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Spectropolarimetric Observations of Solar Noise Storms at Low Frequencies
Published in Solar physics (01-03-2018)“…A new high-resolution radio spectropolarimeter instrument operating in the frequency range of 15 – 85 MHz has recently been commissioned at the Radio Astronomy…”
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LOW-FREQUENCY RADIO OBSERVATIONS OF THE SOLAR CORONA WITH ARCMINUTE ANGULAR RESOLUTION: IMPLICATIONS FOR CORONAL TURBULENCE AND WEAK ENERGY RELEASES
Published in The Astrophysical journal (10-11-2016)“…ABSTRACT We report on the first long baseline interferometer (length 8 km) observations of the solar corona at 37 MHz that were carried out recently with an…”
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Experimental study of rain affected optical wireless link to investigate regression parameters for tropical Indian monsoon
Published in Optical and quantum electronics (01-04-2023)“…The prediction of rain rate and corresponding attenuation is a vital parameter to be considered while analyzing a terrestrial free space optical (FSO)…”
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Compensating rain induced impairments in terrestrial FSO links using aperture averaging and receiver diversity
Published in Optical and quantum electronics (01-07-2019)“…In this paper, we investigate the performance of a free space optical link considering the deteriorations caused by heavy rain. The applicability of receiver…”
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An Optical Architecture of 12 × 2.5 Gbps Wavelength-Interleaving Free Space Hybrid Distribution System Under Turbulent Atmosphere
Published in Wireless personal communications (01-12-2020)“…In this paper, an interleaving technique is effectively applied in a dense wavelength division multiplexing (DWDM) architecture. The technique allows merging…”
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Effect of wind pressure and modulation schemes on rain interrupted optical wireless links under tropical climates
Published in Optical and quantum electronics (01-06-2019)“…Tropical and subtropical regions experience heavy rain intensities often accompanied with medium to strong winds. In this work, the effect of perpendicular…”
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13
Kodaikanal Solar Observatory Radio Spectrograph
Published in Solar physics (01-09-2021)“…The Indian Institute of Astrophysics (IIA) has commissioned a low frequency (<100 MHz) spectrograph at its Kodaikanal Solar Observatory (KSO) for coordinated…”
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14
Evaluation of trend and mortality pattern of communicable diseases in a teaching institution in Kerala
Published in Journal of family medicine and primary care (01-06-2024)“…Even in this era of epidemiologic transition communicable disease is still a major public health problem. Surveillance and timely prevention and control…”
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Curcumin modulates dopaminergic receptor, CREB and phospholipase C gene expression in the cerebral cortex and cerebellum of streptozotocin induced diabetic rats
Published in Journal of biomedical science (31-05-2010)“…Curcumin, an active principle component in rhizome of Curcuma longa, has proved its merit for diabetes through its anti-oxidative and anti-inflammatory…”
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Gender disparity in maintenance hemodialysis units in South India: a cross-sectional observational study
Published in Frontiers in Nephrology (Online) (25-03-2024)“…Diseases manifest differently according to gender in many medical specialties. However, sex differences in kidney diseases have not been well explored…”
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Neuroprotective role of curcumin in the cerebellum of streptozotocin-induced diabetic rats
Published in Life sciences (1973) (04-11-2009)“…Chronic hyperglycaemia in diabetes involves a direct neuronal damage caused by intracellular glucose which leads to altered neurotransmitter functions and…”
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Antihyperglycemic and insulin secretory activity of Costus pictus leaf extract in streptozotocin induced diabetic rats and in in vitro pancreatic islet culture
Published in Journal of ethnopharmacology (25-06-2009)“…The leaves of Costus pictus D. Don were used extensively for its antihyperglycemic activity by the people in Kerala, India. In the present study, the…”
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Decreased GABAA receptor function in the brain stem during pancreatic regeneration in rats
Published in Neurochemical research (01-11-2007)“…Gamma amino butyric acid is a major inhibitory neurotransmitter in the central nervous system. In the present study we have investigated the alteration of GABA…”
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Oro-facial-digital syndrome type II
Published in Journal of the Association of Physicians of India (01-10-2012)“…Oro-facial-digital syndrome type II (OFD-II) is characterized by frenulated tongue, midline cleft lip, high arched or cleft palate, micrognathia, syndactyly…”
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