In the final quarter of the 19th century, dissatisfaction with blood transfusion prompted a brief wave of enthusiasm for transfusion of milk as a blood substitute. Although transfusion of cow’s milk wm first attempted in Canada in 1854, this form of treatment achieved its greatest popularity in the United States between 1878 and 1880. During this interval, transfusion of milk from cows, goats a...

Microstrip patch antennas are intrinsically narrow bandwidth devices, i.e. less than 10 %. Special techniques are always applied in order to increase their bandwidths. These include complicated wideband balun impedance transformers and parasitic elements. Abdelaziz reported a 10 GHz dual-element microstrip patch antenna design which was printed on a 1.6 mm thick Duriod substrate [1]. The two el...