Search Results - (Author, Cooperation:R. Koul)
-
1Latest Papers from Table of Contents or Articles in PressJ. H. Lee ; J. L. Silhavy ; J. E. Lee ; L. Al-Gazali ; S. Thomas ; E. E. Davis ; S. L. Bielas ; K. J. Hill ; M. Iannicelli ; F. Brancati ; S. B. Gabriel ; C. Russ ; C. V. Logan ; S. M. Sharif ; C. P. Bennett ; M. Abe ; F. Hildebrandt ; B. H. Diplas ; T. Attie-Bitach ; N. Katsanis ; A. Rajab ; R. Koul ; L. Sztriha ; E. R. Waters ; S. Ferro-Novick ; C. G. Woods ; C. A. Johnson ; E. M. Valente ; M. S. Zaki ; J. G. Gleeson
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-01-28Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acid Sequence ; Animals ; Cell Line ; Cerebellar Diseases/*genetics/metabolism/pathology ; Cilia/metabolism/*ultrastructure ; Conserved Sequence ; DNA, Intergenic ; *Evolution, Molecular ; Eye Abnormalities/*genetics/metabolism/pathology ; Gene Expression Profiling ; *Gene Expression Regulation ; Genetic Heterogeneity ; *Genetic Loci ; Humans ; Kidney Diseases, Cystic/*genetics/metabolism/pathology ; Membrane Proteins/chemistry/*genetics/metabolism ; Molecular Sequence Data ; Multigene Family ; Mutation ; Mutation, Missense ; Phenotype ; Protein Transport ; *Regulatory Sequences, Nucleic Acid ; Retina/abnormalities/metabolism/pathology ; Transport Vesicles/metabolism/ultrastructurePublished by: -
2Articles: DFG German National LicensesStaff View
ISSN: 0168-9002Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 0168-9002Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesTickoo, A. K. ; Koul, R. ; Kaul, S. K. ; Kaul, I. K. ; Bhat, C. L. ; Bhatt, N. G. ; Kothari, M. K. ; Goyal, H. C. ; Agarwal, N. K. ; Kaul, S. R.
Springer
Published 1999Staff ViewISSN: 1572-9508Keywords: altitude-azimuth mounting ; gamma-ray astronomy ; TACTIC drive-control systemSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract A PC-based drive-control system has been developed for the altitude-azimuth mounted TACTIC γ-ray telescope to control the speed and direction of motion of its 2-axes. Details of various hardware components chosen for the telescope, including hybrid-stepper motor, 16-bit absolute encoder and CAMAC-based programmable stepper motor controller, are discussed in this paper. The telescope-control strategy, based on the position-loop with a proportional type control for the source-seek mode and the on/off type control for the tracking mode, is explained in detail. Some important performance features of the telescope, including its blind-spot size, drive-system backlash and encoder-error compensation, are also presented. The drive system has been extensively field-tested and has been operating satisfactorily during observation campaigns carried out since March 1997 with the TACTIC Imaging Element. A tracking accuracy of ±3 arc-minutes has been achieved. A test report of its performance, with regard to its tracking accuracy on the basis of successful detection of TeV γ-rays from the active galaxy Markarian 501 in April–May 1997, is also presented.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesRawat, H. S. ; Senecha, V. K. ; Rannot, R. C. ; Sapru, M. L. ; Tickoo, A. K. ; Bhat, C. L. ; Koul, R. K. ; Razdan, H. ; Tonwar, S. C.
Springer
Published 1989Staff ViewISSN: 1572-946XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract The Gulmarg gamma-ray telescope (threshold energy ∼6 TeV) was tracking Cygnus X-3 on four days in October 1985, around the time the source produced one of its most outstanding radio flares. Examined here is the behaviour of the event rates recorded during this period with a time-resolution of 216 s. Two episodes of higher event rates, each several minutes in duration and having a Poissonian significance of ∼4σ, were recorded on 10 and 12 October, suggesting possible activity at TeV energies during the radio flare period of Cygnus X-3.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 1572-9508Keywords: arrival direction determination ; artificial neural networks ; plane wave-front fitting ; wide angle Cerenkov arraysSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract A feasibility study has been carried out to assess the potentialof an Artificial Neural Network (ANN) for determiningthe direction of incidence of an Atmospheric Cerenkov Event(ACE) from the arrival-time information registered by aspaced-array of wide-angle Cerenkov detectors. Theresults obtained so far, using both, simulated and experimental data, indicate that a properly-trained net can yield a degree of accuracy which is comparable with what is achieved through the conventional χ2-minimization, wavefront-fitting procedure.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesBhat, C. K. ; Kaul, D. ; Lodha, G. S. ; Koul, R. ; Sawhney, K. J. S.
New York, NY [u.a.] : Wiley-Blackwell
Published 1989Staff ViewISSN: 0049-8246Keywords: Chemistry ; Analytical Chemistry and SpectroscopySource: Wiley InterScience Backfile Collection 1832-2000Topics: PhysicsNotes: The wear of oil-lubricated machines was monitored by establishing a correlation between the wear rate of the machine and the concentration of heavy metal contaminants in the lubricating oils used. The concentrations of heavy metal contaminants in the oil were determined using energy-dispersive X-ray fluorescence spectrometry. To obtain a representative sample, the procedure for sample collection and preparation was standardized. Samples were collected from a 30 KVA diesel generator set at BARC-NRL at regular intervals. The concentrations of Fe, Cr and Ni were found to increase with increase in the number of hours in service.Additional Material: 2 Ill.Type of Medium: Electronic ResourceURL: