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Science: Recent submissions

  • Hewawasam, K.; Hiran H. E. Jayaweera; Ranatunga, C. L.; Ariyaratne, T. R. (2009)
    Measuring tilt and vibration are two of the major applications of accelerometers. An experimental method to calibrate a commercially available 2D accelerometer (ADXL202JQC) as a tilt and a vibration measuring device ...
  • Shyamali, A.K.; Hiran H. E. Jayaweera; Ariyaratne, T.R. (2009)
    Thin-layer drying characteristics of paddy were examined within the relative humidity range from 30% to 60%. A test chamber has been constructed with Perspex and continuously flushed with low humid air to control ...
  • Ranatunga, C.L.; Hiran H. E. Jayaweera; Suraweera, S.K.K.; Ariyaratne, T.R. (2009)
    Almost all instrumental non-destructive (ND) type firmness test methods which involve a physical contact with the tomato when used for testing, deliver at least a minute damage to the fruit. The damage induced on a ...
  • Ranathunga, C. L.; Hiran H. E. Jayaweera; Suraweera, S. K. K.; Wattage, S. C.; Ruvinda, K. K. D. L.; Ariyaratne, T. R. (2010)
    This study focuses to certain elements of th e Road-Vehicle-Load system which are responsible for the inflicted damage to consignment during road transportation. Bruising injury depends on the energy absorbed by the ...
  • Ruvinda, K. K. D. L.; Suraweera, S. K. K.; Hiran H. E. Jayaweera; Ranasinghe, O. K.; Ariyaratne, T. R. (2011)
    This work reports a design and construction of a drying chamber powered by parabolic trough solar concentrator. The construc ted drying chamber is made of thin aluminum sheet material with two compartments; one is ...
  • Kumara, D.M.D.D.P.; Thiruparan, B.; Hiran H. E. Jayaweera; Ariyaratne, T.R. (2011)
    Development of a standalone device together with three application software in different platform for server room environment monito ring is reported. The developed hardware is connected to different sensor networks ...
  • de Silva, G.L.T.T.; Hiran H. E. Jayaweera (2015)
    An optical chlorophyll sensor has been developed by employing its unique light absorption and fluorescence properties . Characteristic absorption peaks of chlorophyll a and b occur at 430 nm and 453 nm ...
  • Wijesinghe, W.D.P.; Hiran H. E. Jayaweera (2015)
    The most widely used laboratory confirmation technique for malaria is visual inspection of Giemsa stained blood smears on microscope. A detection and counting method for malaria infected blood cells in a colour (RGB) ...
  • Dayanga, W.T.T.; Gamalath, K.A.I.L.W. (2008)
    Using a simple thermodynamic upper bound efficiency model for the conversion of solar energy into work, the best material for a converter was obtained. Modifying the existing detailed terrestrial application model of direct ...
  • Wijewardena, Gamalath K.A.I.L; Peiris, B.M.P. (2012)
    Ion transport rate of PAFC, AFC, PEMFC, DMFC and SOFC fuel cells under the influence of an electric field and concentration gradient were evaluated for static electrolytes. AFC are the best fuel cells for higher current ...
  • Jayalal, A.A.S.N; Wijewardena, Gamalath K.A.I.L. (2012)
    An approximate extension of the slender body theory was used to determine the static shape of a conically ended dielectric fluid drop in an electric field. Using induced surface charge density, hydrostatic pressure and the ...
  • Wijewardena Gamalath, K. A. I. L.; Fernando, M. A. I. P. (2009)
    A theoretical model was developed using Green’s function with an anisotropic elastic tensor to study the strain distribution in and around three dimensional semiconductor pyramidal quantum dots formed from group IV and ...
  • Yoosoofmiya, R.M.; Gamalath, K.A.I.L.W. (2003)
    In Time of Flight (TOF) mass spectrometry, the ratio; mass/charge of ions of the sample under investigation is determined by a relationship between time of flight and spectrometer parameters. Usually this relationship is ...
  • Eriksson, H. G.; Karlsson, B. R.; Wijewardena, K. A. I. L. (1985)
    Considering a uniformly moving, swift charge entering a semi-infinite dielectric medium, the polarization potential at the surface is studied using a standard macroscopic and quasistatic model. The bulk dielectric function ...
  • Bulathsinghala, D. L.; Wijewardena, Gamalath K. A. I. L. (2013)
    The Dirac equation consistent with the principles of quantum mechanics and the special theory of relativity, introduces a set of matrices combined with the wave function of a particle in motion to give rise to the relativistic ...
  • Panapitiya, G.U.; Wijewardena, Gamalath K.A.I.L (2011)
    Monte Carlo method was successfully employed to study the mechanism inside a three dimensional bulk hetero-junction polymer solar cell using a model based on a novel architecture of adjustable structural parameters, The ...
  • Wijewardena, Gamalath K. A. I. L; Samarakoon, A. M. (2013)
    To investigate the dynamics of a planar plasma diode system (PDS), a model based on the current density equilibrium at the interface was developed. The current densities and plasma boundary variations with the potential ...
  • Profeta, G.; Franchini, C.; Gamalath, K.A.I.L.W.; Continenza, A. (2010)
    The structural, electronic, and magnetic properties of several different terminations of the BaFe2As2(001) surface are investigated by means of first-principles calculations. Analysis of the surface stability as a function of ...
  • Wijewardena, Gamalath K.A.I.L; Jayawardena, G.L.A.U (2012)
    For the acusto-optic interactions in liquids, an equation for the diffraction light intensity was obtained in terms of Klein Cook parameter Q. With optimized parameters for Q, incident light wave length of _=633 nm, sound ...
  • Wijewardena, K.A.I.L; Szymanski, J; Neilson, D (1988)
    SYNOPISIS. To investigate the change in the surface properties of cadmium telluride when an atom is adsorbed onto a cadmium or mercury telluride when an atom is adsorbed onto a cadmium or mercury terminated (111) surface, ...

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