Vertical silos are large cylinders used for material storage in agriculture and mineral industries. One of the silo problems is its obstruction due to dome and dense packing. Depend on the material properties and silo dimensions several techniques are used to solve this problem. In the present work, possibility of obstruction solution of a laboratory silo by ball impact is investigated. Test ma...

Ramadan is the Holy month of fasting that is obligatory for all normal Muslims who reached at their puberty. Two meals are taken during Ramadan, one is taken before down to prepare themselves for fast is called “Sahur”, and second meal is taken at sunset is called “Iftar”. Fasting is not only a ritual and religious obligation while it has several medicinal significances specia...

iran is among the biggest emitters of greenhouse gasses in the world. agricultural sector has a remarkable role in non-renewable energy consumption and then, the environmental impacts in this country. in this regard, the environmental impacts of watermelon production as the most important melons produced in guilan province of iran were investigated through the life cycle assessment (lca) approa...

Among the most important Jewish encounters with other cultures and civilizations, the encounter with Islamic culture was, in our view, the most important. This encounter was in some aspects like their encounter with the ancient civilization, but the impacts were more valuable and constructive. Under Islamic rule, the Jews not only had a sense of security but also enjoyed a relatively satisfacto...

World population has already exceeded 6.5 billion, out of which about 850 million (13 percent) are undernourished. With the current growth rate, the world community faces even a greater challenge of hunger and food security as the estimated the population will catch 9 billion by the year 2050 with doubled needs for food. At the same time, preservation of biodiversity, stopping deforestation and...