a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

one of the most important goals for increasing recognition and treatment revenue is transmitting vital data to medical care team, more quickly. nowadays, use of new technologies for transmitting data will deploy more and more daily. in this article, for transmitting electrocardiogram, first we code the signal into a suite of codes, then we will use bluetooth technology to transmit data from off...

چکیده ندارد.

چکیده ندارد.

Objectives: This study was conducted to compare the efficacy of metacognitive therapy (MCT), fluvoxamine and the combination of MCT with fluvoxamine, in improving thought control strategies and stop signal criteria in patients with obsessive-compulsive disorder (OCD). Method: Twenty one individuals among outpatients with OCD presenting to clinics in Tehran were selected and randomly divided int...