Sharif Digital Repository

Organizational learning is essential for organizations to grow and survive. Organizations can gain competitive advantage through proper organizational learning. Number of studies in this field in recent years shows the importance of this issue among practioners and academics. The first step in managing organzaitonal learning is its measurement. Organizations can be provided with solutions if an appropriate measurement tool is designed. The main question of this research is whether this tool can be designed or not so that organizational learning in organizational processes can be measured. Despite the significance of organizational learning measurement, the current studies in this field lack... 

Car accident damages take about 7 percent of GPD of Iran every year. As a result of car accidents, the economy of the country is damaging irreparably. The amount of road casualties equals casualties in a complete war. Considering the aforementioned conditions, the researchers are thinking about new technologies to reduce the cost of the accidents. So the use of Vehicular ad-hoc Networks (VANET) is inevitable in the near future. Content distribution service is one of the emerging services of VANETs. This service is used in both safety and comfort related applications. Content distribution describes delivery of media content such as Video, Audio, Image, Text, Software, and Video Games over... 

Ultra-wideband (UWB) receivers have long been utilizied as a low-power solution for many applications, namely positioning, sensor network, and radar systems. As their name suggests, owing to the ultra-wide bandwidth nature of these receivers, which cover frequencies from 3.1GHz all the way to 10GHz, they entail many challenges at all levels of abstraction. Two of these most important challenges are in-band interferers, e.g., IEEE802.11a, and jitter. Because of the low-power operation of UWB receivers, with PSD of <-41.3dBm/Hz, the majority of the UWB RX’s function is based on the correlation principle, making it vulnerable to jitter. In recenet years, a new attention has been paid toward the... 

This research enlarges the content of the literature related to the business switching behavior by examining why dissatisfied customers remain in relationship with their existing service provider and do not exit, in the business to business context in Iran. The study develops and tests a model investigating the factors which potentially affect on dissatisfied customers to stay in relationship and also perform upon their repurchase intention. The proposed model specifies a set of propositions among dimensions of switching barriers, switching cost, interpersonal relationship, lack of attractive of alternative, dependence, calculative commitment, service recovery, inertia, lower price, method... 

In this thesis, we consider multiple-antenna K-user interference channels with backhaul collaboration in one side (among the transmitters or among the receivers) and investigate the trade-off between the rate in the channel versus the communication load in the backhaul. In this investigation, we focus on a first order approximation result, where the rate of the wireless channel is measured by the degrees of freedom (DoF) per user, and the load of the backhaul is measured by the entropy of backhaul messages per user normalized by log of transmit power, at high power regimes. This trade-off is fully characterized for the case of even values of K, and approximately characterized for the case of...