In the oil industry, different oil components are blended in a refinery to fuel products. These products are transported to different harbors by ship. Due to the limited storage capacity at the harbors and the undesirability of a stock-out, inventory levels at the harbors have to be taken into account during the construction of the ship routes. In this paper, we give a detailed description of t...

Physicochemical properties of the commercially procured rubber seed oil (RSO) were studied to evaluate its potential as viable feedstock for biodiesel production. The procured rubber seed oil were characterized for acid value, saponification value, free fatty acid, flash point, kinematic viscosity, and refractive indices using standard methods. Results indicate that the procured rubber seed oil...

Fixed-wing aircraft are viewed as no longer satisfying our needs today. In the past ten years, fuel efficiency and noise reduction have become the two biggest challenges for aircraft manufacturers. The recognition spurred aerospace engineers and system architects to come up with the Blended Wing Body (BWB), a new design for next generation aircraft. In this paper, we discuss the development of ...

This study deals with artificial neural network (ANN) modeling of a spark ignition engine to predict engine thermal balance. To acquire data for training and testing of ANN, a fourcylinder, four-stroke test engine was fuelled with ethanol-gasoline blended fuels with various percentages of ethanol and operated at different engine speeds and loads. The performance of the ANN was validated by comp...

Discharge of sludge from water works into waters will result in the increased deterioration of water environment. Therefore, an experimental study was conducted on the addition of conditioning agent to improve sludge dewatering performance. The result shows that coagulation is inadaptable to the treatment of sludge from water works and use of powdered coal ash from power plant as conditioning a...

Direct catalytic conversion of ethanol to hydrocarbon blend-stock can increase biofuels use in current vehicles beyond the ethanol blend-wall of 10-15%. Literature reports describe quantitative conversion of ethanol over zeolite catalysts but high C2 hydrocarbon formation renders this approach unsuitable for commercialization. Furthermore, the prior mechanistic studies suggested that ethanol co...

The use of renewable energy is an important issue that being promoted internationally. Considering the supply fossil increasingly depleting and requires a very long time to be renewed. One uses biodiesel as substitute for diesel fuel. This utilization carried out by mixing with quantity blended fuel following rules in each country. That why chain must described obtain minimum economic costs env...

This study was an attempt to analyze the applications and problems of conducting blended learning (BL) in view point of the agricultural students from Bu-Ali Sina University. The study has employed a surveying methodology with interviewing and included a combination of descriptive and quantitative research methods. Statistical population of the study included 500 agricultural students from Bu-A...

Blended online learning is an emerging variation of blended learning. Whereas blended learning enhances face-to-face classroom instruction by adding asynchronous online instruction via a learning management system, blended online learning adds synchronous online learning via web conferencing to enhance otherwise asynchronous online courses. Blended online learning can potentially attract season...