The Brill{Hartle gravitational geon construct as a spherical shell of small amplitude, high frequency gravitational waves is reviewed and critically analyzed. The Regge{Wheeler formalism is used to represent gravitational wave perturbations of the spherical background as a superposition of tensor spherical harmonics and an attempt is made to build a non{singular solution to meet the requirement...

throughout the history, there have been deep cultural as well as scientic connections between iran and india. in medieval period, many persian physicians immigrated to india mainly because of political and social reasons. a good example of this was mirza mohammad hashem alavi khan shirazi who belonged to shiraz medical doctrine. he was born in shiraz, but immigrated to india and was in the cou...

the sasanian settlements located persian gulf shores proving the economic-political sovereignty of iran over the persian gulf through preislamic era denotes commercial relations between iran and other regions. the remains of sasanian sites and scattered ceramic sherds help us to apprehend the history of the socio-political organization of the persian gulf sphere and recognize the interactions b...

Outline shape carries a substantial part of the information present in an object view, and is more economical than classical representations such as geon-structural-descriptions or multiple-views. We demonstrate the utility of silhouette representations for a variety of visual tasks, ranging from basic-level categorization to nding the best view of an object. All these tasks necessitate the com...

The small hydraulic diameters employed during flow boiling in compact evaporator passages are becoming more important as they are employed in diverse applications including electronics cooling and fuel cell evaporators. The high pressure drop characteristics of these passages are particularly important as they alter the flow and heat transfer, especially in parallel multi-channel configuration....