ultra-short pulse is a promising technology for achieving ultra-high data rate transmission which is required to follow the increased demand of data transport over an optical communication system. therefore, the propagation of such type of pulses and the effects that it may suffer during its transmission through an optical waveguide has received a great deal of attention in the recent years. we...

The present study is dealing with presenting a model for evaluating the effectiveness of short and medium-term training courses at Mazandaran University of Medical Sciences. a combined research method (quantitative, qualitative) was conducted. The statistical population consists of specialists and university administrators and staff of the Medical Sciences Organization in Mazandaran Province.  ...

the main objective of this paper is to analysis the impact of information and communication technology (ict) on energy consumption in the mena region selected countries during the period 1995-2011. for this purpose, used the model presented by sadorsky (2012) and three indicators that measured ict: the number of internet users, the number of mobile lines and the number of telephone lines. also,...