Over the last few decades, the power of personal computers (PCs) has grown steadily, following the exponential growth rate predicted by Moore’s law. The trend towards the commoditization of PC components (such as CPUs, memories, high-speed interconnects and disks) results in a highly attractive price/performance ratio of the systems built from those components. Following these trends, I propose...

Generally, the performance of present day computer vision systems is still very much affected by varying brightness and light source conditions. Recently, Koenderink suggested that this weakness is due to methodical flaws in low level image processing. As a remedy, he develops a new theory of image modeling. This paper reports on applying his ideas to the problem of illumination insensitive fac...

The increasing demand for wireless data services requires massive network densification which is neither economically nor ecologically feasible. The concept of cell-size reduction provides an effective and simple solution to this problem. Small-Cell Networks (SCN) are one of the promising architectures based on this idea. Generally, a SCN is a cellular network where the size of the cells are ve...

the process that forms during writing is under an important principle and according to abstract form of alphabet and their composition. this principle is called writing system. therefore, writing is accounted an artistic work. cognitive it is important in different dimension view, because of man abstract view point that has led emergence of communication system. this paper for cognitive analysi...

the iranian new wave filmmakers pay attention and focus on the social changes in years before the islamic revolution in 1357 (1979).in these years due to the economical and social changes and the government’s attempt for modernizing the traditional social system and social uplifting has spread and this caused criticism by the iranian new wave filmmaker of that era. social approach and mobility ...

painting and art criticism are based on two different semiotic systems. the expression in painting is basically visual and in criticism is verbal. on the other hand, all expression is linguistic, that is expression and comprehension in all semiotic systems is basically linguistic. the art criticism, then, is situated between two poles: visual signs and verbal signs. it has as function to reorga...

Humans are born with initially high levels of lactase expression from intestine enterocytes. But lactase is gradually down-regulated after weaning of breast feeding and during growth which results in diminished lactase expression in almost two-thirds of the world’s population except caucacian; This causes lactose intolerance. Studies of lactose intolerance have demonstrated that despite polymor...

The effect of pantethine on bile acids and lipids was studied by the washout technique in Wistar female rats fed for four weeks with a 1% cholesterol diet supplemented with 0. 5% cholic acid, either containing or not containing 1% pantethine. Pantethine caused a slight increase in the biliary cholesterol concentration with a significant decrease in the serum cholesterol, ,8-lipoprotein and trig...

When electrons are confined to move in a plane, strange things happen. For example, under normal circumstances, they are not expected to conduct electricity at low temperatures. The absence of electrical conduction in two dimensions at zero temperature has been one of the most cherished paradigms in solid state physics. In fact, the 1977 physics Nobel prize was awarded, in part, for the formula...