This paper addresses multi-objective (MO) optimization of a single-model assembly line balancing problem (ALBP) where the operation times of tasks are unknown variables and the only known information is the lower and upper bounds for operation time of each task. Three objectives are...

A number of studies explore the urban structure of the city of Tehran; however, little has been done in regard to its interconnectivity with the surrounding settlements and current challenges at the regional scale. This article investigates the making and current unsustainable condition of the...

One of the most important sections in the gas peak shaving plant regarding the energy consumption is the liquefaction process of natural gas (NG). Thus, selection and development of this process with the lowest energy consumption, offer huge potential energy and cost benefits. Here, a...