Kenyatta

Browsing RP-Department of Physics by Issue Date

Kenyatta University Institutional Repository

This collection contains research and other publications generated and held within Kenyatta University. Full text access is provided under Creative Commons License

Browsing RP-Department of Physics by Issue Date

Sort by: Order: Results:

  • Chege, M. W.; Hashim, N. O.; Merenga, Abdullah S.; Tschiersch, J. (International Journal of Physical Sciences, 201-05)
    People’s health, behavior and intellect to a certain extent are a function of their environment. One important component of this environment is water, a basic necessity that human beings cannot do without. The water ...
  • Rathore, I. V. S.; Singh, B P (Pramana, 1977)
    β-γ-γ directional correlation studies for the cascades (i)β-rays ofE max=0.12 MeV,γ-rays of 557 keV andγ-rays of 53 keV and (ii)β-rays ofE max=0.21 MeV,γ-rays of 444 keV andγ-rays of 53 keV have been made. The triple ...
  • Hobart, R. H. (Kluwer Academic Publishers, 1979)
    In standard Wheeler-Feynman electrodynamics advanced waves from any source are absolutely canceled by the advanced waves from the absorber responding to that source. The present work shows this cancellation fails over ...
  • Odera, T. J. (Reviews of Geophysics, 1986-02)
    Abstract Studies of the solar wind controlled Pc 3, 4 pulsations by early and recent researchers are highlighted. The review focuses on the recent observations, which cover the time during the International Magnetospheric ...
  • Odera, T.J.; Swol, D.V.; Russell, C.T.; Green, C.A. (Reviews of Geophysics, 1991-09)
    Periods of magnetic conjugacy between ISEE and the magnetometer array of the Institute for Geological Sciences have been examined to search for the simultaneous occurrence of Pc 3,4 magnetic pulsations. When compressional ...
  • Okumu, John; Morgan, G.J.; Holender, J. M.; Weaire, D.; Hobbs, D. (Elsevier, 1993-12-02)
    The double sign anomaly in hydrogenated amorphous silicon, observed by LeComber et.al.in 1977, has remained puzzling ever since. Recently we attacked this problem from two different directions using the equation-of-motion ...
  • Okumu, John; Holender, J. M.; Morgan, G. J. (Taylor &Francis, 1995-02-17)
    We show that the random-phase model for the electronic wavefunctions gives very reasonable agreement with recent computations of the conductivity for amorphous Si. Furthermore the model also yields the double-sign anomaly ...
  • Ambusso, W.; Satik, C.; Castanier, L.M.; Horne, R.N. (Geothermal Resources Council, Davis, CA (United States), 1995-12-31)
    This paper reports preliminary experimental and numerical efforts towards obtaining steam-water relative, permeability and capillary pressure functions under steady-state and adiabatic conditions. In the experimental ...
  • Ambusso, W.; Satik, C.; Horne, R.N. (Society of Petroleum Engineers, 1996-01-01)
    A set of relative permeability relations for simultaneous flow of steam and water in porous media were obtained from a steady state experiment. The experiment was conducted under conditions that minimize most of the ...
  • Bastida, J.; Codina, C.; Peeters, P.; Rubiralta, M.; Orozco, M.; Luque, F.J.; Chhabra, S. C. (Wiley Online Library, 1996-03)
    ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please ...
  • Wafula, A. B. (Faculty of Science Kenyatta University, 1998)
    The electrical characteristics of asernic triselenide have been studied. A number of parameters is evaluated on the basis of the theory of space-charge limited conduction and the following values were obtained: hole ...
  • Hashim, N.O.; Kinyua, A. M.; Mangala, M. J.; Rathore, I. V. S. (Faculty of Science Kenyatta University, 1998)
    Energy dispersive X-ray fluorescence technique has been used to study the levels of lead and other toxic trace elements in the soil samples collected along two major highways (Mombasa and Thika) of Kenya at the various ...
  • Singh, C. S. (Faculty of Science Kenyatta University, 1998)
    The Coulomb-projected Born method proposed by Geltman has been generalized by using the screened Coulomb potential of the form in place of the nuclear potential experienced by the incident electron. The results obtained ...
  • Ambusso, Willis Jakanyango; Horne, R. N.; Satik, C.; Mahiya, G.; Li, K.; Tovar, R.; Wang, C.; Nassori, H. (2000)
    Reliable measurement of steam-water relative permeability functions is of great importance for geothermal reservoir performance simulation. Despite their importance, these functions are poorly known due to the lack of ...
  • Wafula, A.B.; Dod, T.S. (Faculty of Science Kenyatta University, 2000)
    Photoconductivity of As2Se3:Alx and As2Se3:Cux was investigated using light of visible spectrum of wavelengths A. = 0.67 um & 0.47 urn. Two regimes were observed: regime 1, the high temperature region above maximum ...
  • Njoroge, W. K.; Lange, T.; Weis, H.; Beckers, M.; Wuttig, M. (Elsevier, 2000-04-03)
    We have studied optical and structural properties of GeOx films produced by reactive DC magnetron sputtering of Ge targets in an Ar/O2-mixture. Optical spectroscopy measurements of reflectance and transmittance of the films ...
  • Ambusso, W.; Horne, R.N.; Satik, C.; Mahiya, G.; Li, K.; Tovar, R.; Wang, C.; Nassori, H. (Davis, CA; The Geothermal Resources Council, 2000-05-28)
    A set of relative permeability relations for simultaneous ow of steam and water in porous media have been derived from experiments conducted under conditions that eliminate most errors associated with saturation and ...
  • Njoroge, W. K.; Kalb, J.; Wamwangi, D.; Wuttig, M.; Spaepen, F. (American Institute of Physics, 2001)
    Crystallization processes in different Te alloys, employed in phase change materials for optical data storage, have been investigated by in situ mechanical stress measurements. Upon crystallization a considerable stress ...
  • Njoroge, W. K.; Venkataraj, S.; Geurts, J.; Weis, H.; Kappertz, O.; Jayavel, R.; Wuttig, M. (American Vacuum Society, 2001)
    The structural and optical properties of thin lead oxide films were studied. Thin films were prepared by reactive dc magnetron sputtering of lead(Pb) targets in an Ar/O2 mixture. The structure has been determined by x-ray ...
  • Okumu, J.; Morgan, G.J. (Faculty of Science Kenyatta University, 2001)
    We have used the random phase model for the electronic wave functions to calculate the imaginary part of the dielectric function 82 (m) and the magnitude of the third harmonic generation, 11'3(OJ ~ using a model structure ...

Search Repository


Browse

My Account