Heat transfer enhancements are investigated inside channels by controlling thermal dispersion effects inside the fluid. Different distributions for the dispersive elements such as nanoparticles or flexible hairy fins extending from the channel plates are considered. Energy equations for different fluid regions are dimensionalized and solved analytically and numerically. The boundary arrangement...

We consider the initial value problem for some nonlinear hyperbolic and dispersive systems in one space dimension. Combining the classical energy method and the smoothing estimates for the Airy equation, we guarantee the time local well-posedness for this system. We also discuss the extension of our results to more general hyperbolic-dispersive system.

A general numerical solution of the dispersion integral relation between the real and the imaginary parts of the nuclear optical potential is presented. Fast convergence is achieved by means of the Gauss–Legendre integration method, which offers accuracy, ease of implementation and generality for dispersive optical model calculations. The use of this numerical integration method in the optical ...

An inter-laboratory exercise has been carried out to evaluate the analytical performance of Method for Determining Hazardous Substances: MDHS 91 for determining Metals and metalloids in workplace air by X-ray fluorescence spectrometry, published by the Health and Safety Executive, United Kingdom. Sets of prepared filter standards were used to “transport” a master calibration established on an X...

The development of EDATA2 was stimulated by the proliferation of mixed energy dispersive/wavelength dispersive equipped electron microprobes. For such systems to be operated most efficiently and conveniently, a data reduction program is required that can handle energy-dispersive, wavelength-dispersive, or a mixture of both kinds of data. This requirement has become particularly pressing with th...

zns  nanoparticles  were  synthesized  via  a  simple  surfactant  free microwave  route.  in  this  synthesis, thioacetamide  was  used  as sulfur  source.  the effects  of different  parameters  such  as  type of zinc precursor,  time  and  power  of  irradiation  on  the  morphology and  particle  size  of  the  products  have been  investigated.  the nanostructures  were  characterized  by ...