THE RAYLEIGH limit of the classical Lorenz-Mie (LM) theory is widely utilized in thermal radiation when the particle diameter is small relative to the wavelength of radiation [I+]. This approximation is usually assumed to be accurate up to the size parameter CI = nD/I 2 0.3, D being the particle diameter, i; the wavelength of radiation. The extension of Rayleigh bound from GI 1 0.3 to o[ g 0.8 ...

Nodes are randomly distributed within an annulus (and then a shell) to form a point pattern of communication terminals which are linked stochastically according to the Rayleigh fading of radio-frequency data signals. We then present analytic formulas for the connection probability of these spatially embedded graphs, describing the connectivity behaviour as a dense-network limit is approached. T...

— We present a class of concatenated codes called Parallel Concatenated Gallager Codes (PCGC) using Low-Density Parity-Check (LDPC) component codes. We report simulation results for PCGC that outperform those for comparable LDPC codes both in Additive White Gaussian Noise (AWGN) and ßat Rayleigh fading channels. The good performance of PCGC increases the capacity of CDMA systems while the reduc...

The governing equations of a transversely isotropic dissipative medium are solved analytically to obtain the surface wave solutions. The appropriate solutions satisfy the required boundary conditions at the stress-free surface to obtain the frequency equation of Rayleigh wave. The numerical values of the non-dimensional speed of Rayleigh wave speed are computed for different values of frequency...

The onset of convection in the form magneto-inertial waves a rotating fluid sphere permeated by constant axial electric current is studied through perturbation analysis. Explicit expressions for dependence Rayleigh number on azimuthal wavenumber are derived limit high thermal diffusivity. Results case thermally infinitely conducting boundaries and nearly insulating obtained.

An experimental and numerical study of free convection heat transfer from a channel consisting of a vertical sinusoidal wavy surface and a vertical flat plate has been carried out. The vertical wavy surface was maintained at a constant temperature, while the flat plate is adiabatic. A Mach-Zehnder Interferometer was used to determine the local heat transfer coefficients of sinusoidal wavy surfa...

On the onset of triple-diffusive convection in a horizontal layer of nanofluid heated from below and salted from above and below is studied both analytically and numerically. The effects of thermophoresis and Brownian diffusion parameters are also introduced through Buongiorno model in the governing equations. By using linear stability analysis based on perturbation theory and applying normal m...