In addition to broadband gain and input matching requirements, the UWB standard also poses a tight specification on the band switching time (9ns), thus precluding the direct synthesis of frequencies by phase locking. An approach suggested for this task incorporates a single phase-locked loop (PLL) and a number of single-sideband (SSB) mixers to generate different frequencies that are present at...

9/11 (september) is one of the influential events in the international politics. in fact this event opens a new chapter of transaction in international relation and has been affected great powers policy and international institution in different aspects. nato as the most important security institution in west also affected by these events. these events have been changed nato strategy in deal wi...

Recently, there has been growing interest in using silicon-based integrated circuits at high microwave and millimeter-wave frequencies. The high level of integration offered by silicon enables numerous new topologies and architectures for low-cost reliable SoC applications at microwave and millimeter-wave bands, such as broadband wireless access (e.g., WiMax), vehicular radars at 24GHz and 77GH...

Objective: Demonstrating inhibition of 11 HSD1 is challenging because there is no accessible way to directly assess the enzyme activity in vivo. Thus, it was proposed to assess the enzyme activity, in an indirect fashion, using two biomarker methods: the prednisolone generation study (conversion of oral prednisone to prednisolone in plasma) and the ratio of cortisol and cortisone metabolites in...