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...

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

abstract this study aimed at investigating the effect of bilingual teaching of cognate words (persian-english) on iranian upper intermediate efl learners’ knowledge of lexical development. for this purpose,100 subjects participated in this study out of which 40 learners were selected for this study and they were assigned into two groups, control and experimental. cross-language cognates (wor...

Introduction: Depressed female students suffer many problems such as social anxiety and poor communication skills. The aim of this study was to compare the effectiveness of positive directed mindfulness therapy(PDMT), mindfulness-based cognitive therapy(MBCT) and cognitive-behavioral therapy(CBT) on social anxiety and communication skills of female students with depression. Methods: This was a ...

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 ...

abstract previous studies on willingness to communicate (wtc) have shown the influence of many individual or situational factors on students’ tendency to engage in classroom communication, in which wtc has been viewed either at the trait-level or situational level. however, due to the complexity of the notion of willingness to communicate, the present study suggests that these two strands are ...

Emotion Focused Couple Therapy and Integrative Behavioral Couple Therapy are treatments that has a focused on the negative cycles of interaction caused from deep emotional vulnerability. The current research administrated aim to Comparison of the Effectiveness of Integrative Approaches, Emotionally Focused Couple Therapy and Integrative Behavioral Couple Therapy In Restructuring Communication...

Abstract Background & Aims: There are different approaches in the field of couple therapy and family therapy and researchers over the years have been measuring their credibility and effectiveness. Bernstein Behavioral-communication is one of these approaches. Accordingly, the aim of this study was to assess the effectiveness of Bornstein behavioral-communication couple therapy on increasing ...