Sharif Digital Repository

Iran has many fossil fuels resources and today due to several reasons such as the environmental effects caused by burning these fuels, the depletion of fossil resources and energy security, the pattern of fuel production and consumption has changed.In recent years biofuels received the attention of researchers all over the world due to the sustainability of energy supply and their positive environmental effects. The agricultural wastes and Residues may be used to produce biofuels. Qazvin province, with its high potential of agriculture, can provide many sources of agricultural waste and residues for the production of biofuels. In this research, the aim is to optimize the biofuels supply... 

Evaluating the performance of public transport systems solely based on objective indicators may provide an incomplete picture of the reality experienced by citizens. This study aimed to assess and compare objective and perceived public transport accessibility and to analyze the accessibility mismatch between them in the city of Qazvin. To measure objective accessibility, the first standard General Transit Feed Specification (GTFS) dataset for Qazvin was produced, and a door-to-door travel time matrix was calculated. Accessibility to 14 key urban opportunities was then measured using a gravity model at the level of 105 traffic analysis zones and subsequently aggregated to eight residential...