Search for Correlations between HiRes Stereo Events and Active Galactic Nuclei (2008)
Abbasi, R. U., Abu-Zayyad, T., Allen, M., Amman, J. F., Archbold, G., Belov, K., ...
We have searched for correlations between the pointing directions of ultrahigh energy cosmic rays observed by the High Resolution Fly's Eye experiment and Active Galactic Nuclei (AGN) visible from...
An upper limit on the electron-neutrino flux from the HiRes detector (2008)
Abbasi, R. U., Abu-Zayyad, T., Allen, M., Amann, J. F., Archbold, G., Belov, K., ...
Air-fluorescence detectors such as the High Resolution Fly's Eye (HiRes) detector are very sensitive to upward-going, Earth-skimming ultrahigh energy electron-neutrino-induced showers. This is due to...
High Energy Materials. New Preparative Approaches to Nitro and Nitroso Derivatives (2006)
Boyer, J. H., Ramakrishnan, V. T., Pillai, T. P., Huang, C. B.
Contents: C2nN2n02n Systems. Proximate Nitro and Cyano Groups; Bicyclic Peroxides from a 1,4-Diazepine; Oxidation at Nitrogen in Benzo-, Benzodi-, and Benzotrifuroxans; Oxidation of...
Abbasi, R. U., Abu-Zayyad, T., Amman, J. F., Archbold, G. C., Atkins, R., Bellido, J. A., ...
© 2005. The American Astronomical Society
Abbasi, R. U., Abu-Zayyad, T., Archbold, G. C., Atkins, R., Bellido, J. A., Belov, K., ...
© 2005. The American Astronomical Society
Abbasi, R. U., Abu-Zayyad, T., Amman, J. F., Archbold, G. C., Atkins, R., Bellido, J. A., ...
© 2005. The American Astronomical Society
Abbasi, R. U., Abu-Zayyad, T., Archbold, G. C., Atkins, R., Bellido, J. A., Belov, K., ...
© 2005. The American Astronomical Society
Abbasi, R. U., Amann, J. F., Archbold, G. C., Atkins, R., Bellido, J. A., Belov, K., ...
© 2004. The American Astronomical Society
Abbasi, R. U., Amann, J. F., Archbold, G. C., Atkins, R., Bellido, J. A., Belov, K., ...
© 2004. The American Astronomical Society
Geometry and optics calibration for air fluorescence detectors using star light (2002)
Sadowski, P. A., Van Der Zande, A. M., Abbasi, R., Abu-Zayyad, T., Archbold, G. C., Bellido Caceres, J. A., ...
Copyright © 2002 Elsevier Science B.V. All rights reserved.
Secondary Free Radial Intermediates in the Synthesis of 2-Methyl-6-Nitroindazole. (2002)
Boyer, J. H., Pace, M. D., Pagoria, P., Pillai, T. P., Stec, D.
Four distinct free radical intermediates were detected by electron spin resonance (e.s.r) spectroscopy during the spontaneous conversion of an isomeric mixture of 2,4 and...
Geometry and optics calibration for air fluorescence detectors using star light (2002)
Sadowski, P. A., Van Der Zande, A. M., Abbasi, R., Abu-Zayyad, T., Archbold, G. C., Bellido Caceres, J. A., ...
Copyright © 2002 Elsevier Science B.V. All rights reserved.
Bimanes (1,5-Diazabicyclo(3.3.0)Octadiendiones). Laser Activity in syn-Bimanes. (1998)
Stevens, E. D., Boyer, J. H., Lau, C. M., Politzer, I. R., Tangaraj, K.
The conversion of 3-methyl-4-benzyl-4-chloro-2-pyrazolin-5-one 10b was catalyzed by a mixture of potassium fluoride and alumina to give syn-(methyl,benzyl)bimane 6 (62%) without detectable formation...
Miranda, D. T., Stevens, E. D., Ramakrishnan, V. T., Vedachalam, M., Boyer, J. H.
The title compound was prepared by condensation of glyoxal and 1,4-diformyl-2,3,5,6-tetrahydroxypiperazine in the presence of nitric and sulfuric acids. Cooling the reaction mixture with ice yielded...
Ramakrishnan, V. T., Vedachalam, M., Boyer, J. H.
The 4,6-dinitroso derivative was obtained (83%) by the nitrosation of 2-oxooctahydroimidazo imidazole as the dihydrochloride and was converted to the 4,6-dinitro derivative (66%) by treatment with...
Luminescent Nitro Derivatives of Benzotriazolo(2,1-a)Benzotriazole. (1998)
Fluorescence was enhanced and laser activity introduced by substitution in 5,11-dehydro-5H,11H-benzotriazolo(2,1-a)benzotriazole 6 to give 2-nitro, 2,8-dinitro, 2,4,8-trinitro, and...
Laser Dye Spectroscopy of Some Pyrromethene-BF2 Complexes. (1998)
Pavlopoulos, T. G., Boyer, J. H., Thangaraj, K., Sathyamoorthi, G., Shah, M. P.
To improve the laser-action properties of the pyrromethene-BF2 complexes (P-BF2 complexes), we studied substitution effects at different positions of the dye molecule on the electronic spectra of...
Pyrromethene-BF2 Complexes as Laser Dyes: 2. (1998)
Boyer, J. H., Haag, A. M., Sathyamoorthi, G., Thangaraj, K.
Pyrromethene--BF2 complexes were obtained from alpha-unsubstituted pyrroles by acylation and condensation to give intermediate pyrromethene hydrohalides followed by treatment with boron trifluoride...
Trinitromethanide and Tricyanomethanide Salts Restricted to C, H, N, and 0 Atoms. (1998)
Trinitromethane combined with oximes of cyclopentanone, cyclohexanone, and diphenylcyclopropenone and with melamine and two 1,3-dialkyl-2,4-dialkylimino-1,3-diazetidines to give simple...
Luminescent Nitro Derivatives of 5,11-Dehydro-5H, 11H-benzotriazolo(2,1-alpha)benzotriazole. (1998)
Fluorescence was enhanced and laser activity introduced by substitution in 5,11 -dehydro-5H,11Hbenzotriazolo2,1-A-benzotriazole 6 to give 2-nitro, 2,8-dinitro, 2,4,8trinitro, and 2,4,8,10-tetranitro...
Efficient Laser Action from Two CW Laser Pumped Pyrromethene-BF2 Complexes. (1998)
Guggenheimer, S. C., Boyer, J. H., Thangaraj, K., Shah, M., Soong, M. L.
Two new pyrromethene-BF2 dyes P-556 and P-567 were tested for cw laser Operation. P-556 demonstrated a significant advance in the 530-620 nm region over commercially dyes currently available, where...