Results 21 to 30 of about 684,311 (308)

New applications and developments in the neutron shielding

open access: yesEPJ Web of Conferences, 2017
Shielding neutrons involve three steps that are slowing neutrons, absorption of neutrons, and impregnation of gamma rays. Neutrons slow down with thermal energy by hydrogen, water, paraffin, plastic. Hydrogenated materials are also very effective for the
Uğur Fatma Aysun
doaj   +1 more source

Ascertaining gamma ray dosage sensitivity of in vitro cultures in banana cv. Ney Poovan (Musa AB)

open access: yesElectronic Journal of Plant Breeding, 2021
In a vegetatively propagated and parthenocarpic crop like banana, the mutation breeding method offers considerable scope to create genetic variability for crop improvement.
C.Y. Shalini Udaya, K. Soorianathasundaram, M. Ganga, P. Paramaguru and U. Sivakumar
doaj   +1 more source

Measurement of Ultra-High Energy Cosmic Rays with CHICOS [PDF]

open access: yes, 2009
The California HIgh school Cosmic ray ObServatory (CHICOS) is a ground-based scintillator array designed to measure the extended air showers of ultra-high energy cosmic rays. The goal of the project is to gain insight into the origin of ultra-high energy
Brobeck, Elina
core   +1 more source

Radiation effect on germination and seedling traits in rice (Oryza sativa L.)

open access: yesElectronic Journal of Plant Breeding, 2019
The biological effect of new source of physical mutagen viz., electron beam over gamma rays were studied with different dosages in the M1 generation of rice during 2017-18.
R. Lalitha   +6 more
doaj   +1 more source

Gamma-ray luminosity function of gamma-ray bright AGNs [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2009
Detection of Gamma-ray emission from a class of active galactic nuclei (viz blazars), has been one of the important findings from the Compton Gamma Ray Observatory (CGRO). However, their Gamma-ray luminosity function has not been well determined. Few attempts have been made in earlier works, where BL Lacs and Flat Spectrum Radio Quasars (FSRQs) have ...
Bhattacharya, Debbijoy   +2 more
openaire   +2 more sources

Probit analysis and effect of electron beam and gamma rays in blackgram (Vigna mungo (L.) Hepper)

open access: yesElectronic Journal of Plant Breeding, 2017
An experimental investigation was carried out to determine the lethal dose (LD50) of electron beam and gamma rays on two black gram varieties viz., MDU 1, VBN (Bg) 4. The lethal dose was determined by probit analysis. Dry seeds of both the varieties were
K. Veni   +2 more
doaj   +1 more source

GAMMA-RAY OBSERVATIONS OF GAMMA-RAY BINARIES

open access: yesInternational Journal of Modern Physics: Conference Series, 2014
Gamma-ray binaries are binary systems that emit most of their radiative output above 1 MeV. Following the detection of five such systems in the past decade, they have been clearly established as a population of galactic GeV and TeV sources. In this review I discuss their recent gamma-ray observational results from Cherenkov telescopes and the Fermi ...
openaire   +2 more sources

Gamma rays from dark matter [PDF]

open access: yes, 2001
I give a brief review of high energy gamma-ray signatures of dark matter. The decay of massive $X$-particles and subsequent hadronization have been suggested as the origin of the highest energy cosmic rays.
Protheroe, R., Raymond J. Protheroe
core   +1 more source

Multiwavelength Variability Analysis of 3C 279

open access: yesFrontiers in Astronomy and Space Sciences, 2017
We present a multifrequency analysis of the variability in the flat-spectrum radio quasar 3C 279 from 2008 to 2014. Our multiwavelength datasets range from 1 mm to gamma-rays, with additional optical polarimetry.
Víctor M. Patiño-Álvarez   +8 more
doaj   +1 more source

EFFECT OF GAMMA IRRADIATION,METHYL METHANE SULPHONATE AND THEIR COMBINATIONS ON GROWTH, FLOWERING AND INDUCED VARIABILITY IN Tagetes erecta, L. [PDF]

open access: yesJournal of Plant Production, 2000
Seeds of Tagates erecta. were irradiated with different doses of gamma-rays ( 0,5,10 and 15 kr.),  other part of seeds was treated with different levels of MMS ( 0.0, 0.1, 0.2, 0.3,0.4, 0.5 and 1.0%) .
Fatma El-Tony   +3 more
doaj   +1 more source

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