Zobrazeno 1 - 10
of 16
pro vyhledávání: '"K Y Singh"'
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 822:012026
The increasing demand for electricity generation in India primarily depends on coal-fired power plants. The burning of coal is known as fly ash and a prominent factor of pollution in the environment. Fly ash generation in plants leads to the creation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0aead2e4407d0d5211c00f8cade0e661
https://doi.org/10.1088/1755-1315/822/1/012026
https://doi.org/10.1088/1755-1315/822/1/012026
Publikováno v:
The Astrophysical Journal. 664:458-466
Data from {\it Chandra} observations of thirty nearby galaxies were analyzed and 365 X-ray point sources were chosen whose spectra were not contaminated by excessive diffuse emission and not affected by photon pile up. The spectra of these sources we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d5acb2223c4a201ab6b74adf5850d73
https://doi.org/10.1086/518533
https://doi.org/10.1086/518533
Autor:
S. Seetha, K. Kasturirangan, Biswajit Paul, N. S. Singh, K. Y. Singh, P. C. Agrawal, Sachindra Naik, A. R. Rao
Publikováno v:
Advances in Space Research. 28:405-409
A nonlinear nature of the arrival time of the 4.8 hr binary modulation in the X-ray light curve of Cygnus X-3 indicates either a change in the orbital period or an apsidal motion of the orbit. We have made extended observations of Cygnus X-3 with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d07a9f4c066980f63914947e79b1b8b
https://doi.org/10.1016/s0273-1177(01)00439-2
https://doi.org/10.1016/s0273-1177(01)00439-2
Autor:
P. C. Agrawal, Sachindra Naik, A. R. Rao, K. Y. Singh, S. Seetha, J. S. Yadav, K. Kasturirangan, Biswajit Paul, K. Mukerjee
Publikováno v:
Advances in Space Research. 25:357-362
Studies of several x-ray binaries have been made with the Indian X-ray Astronomy Experiment on the IRS-P3 satellite. We present here results from timing analysis of four of the neutron star and black hole binaries; namely GRS 1915+105, the recently d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::228a5d12e2f3e33c5248b1d0f59ed797
https://doi.org/10.1016/s0273-1177(99)00758-9
https://doi.org/10.1016/s0273-1177(99)00758-9
Publikováno v:
Annals of Nuclear Energy. 26:553-558
Fast neutron radiative capture cross-sections for Nd-148 and Nd-150 have been measured at about 10 neutron energies between 0.46 and 3.44 MeV using enriched isotopes and the activation technique. Experimental results are also compared with the theore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf7c683dc99952daeadfff6c3c9a15e2
https://doi.org/10.1016/s0306-4549(98)00021-8
https://doi.org/10.1016/s0306-4549(98)00021-8
Publikováno v:
Advances in Space Research. 22:1003-1006
We have observed the Galactic center X-ray pulsar GX 1+4 using a balloon-borne hard X-ray telescope. Hard X-ray pulse profiles and spectral parameters were obtained on two occasions; during the high state of December 1993 when the hard X-ray pulse fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a1ef5ac8ff8ba70f2e38cb0df91148e
https://doi.org/10.1016/s0273-1177(98)00132-x
https://doi.org/10.1016/s0273-1177(98)00132-x
We report variability of the X-ray source, X-7, in NGC 6946, during a 60 ksec Chandra observation when the count rate decreased by a factor of ~1.5 in ~5000 secs. Spectral fitting of the high and low count rate segments of the light curve reveal that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60e079feec7038f507bd0a0d648bac48
Autor:
M. K. Bhardwaj, R. K. Y. Singh, R. P. Gautam, A. K. Chaubey, H. Singh, I. A. Rizvi, M. Afzal Ansari
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 41:401-405
Excitation functions for the reactions 107Ag(α,n)110In, 107Ag(α,2n)109In, 109Ag(α,2n)111In, 109Ag(α,3n)110In and 109Ag(α,4n)109In have been measured from 13 to 50 MeV with the help of the stack-foil technique. Since the silver target used has tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::017ae8d6389e1f1a08500be19730e191
https://doi.org/10.1016/0883-2889(90)90150-f
https://doi.org/10.1016/0883-2889(90)90150-f
A nonlinear nature of the binary ephemeris of Cygnus X-3 indicates either a change in the orbital period or an apsidal motion of the orbit. We have made extended observations of Cygnus X-3 with the Pointed Proportional Counters (PPCs) of the Indian X
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc5b14e591b08cd7b95d66eec0045211
http://arxiv.org/abs/astro-ph/0206134
http://arxiv.org/abs/astro-ph/0206134
Publikováno v:
Journal of the Physical Society of Japan. 56:3135-3144
Excitation functions of tone reactions (α, n), (α, 2n), (α, pn) for 63 Cu and (α, n), (α, 2n), (α, 3n), (α, p3n) for 65 Cu have been measured with stacked foil activation techniques for projectile energies below 40 MeV α-particle. A large-vol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e81dbaac99fa2cebaab78348add7c5cf
https://doi.org/10.1143/jpsj.56.3135
https://doi.org/10.1143/jpsj.56.3135