This paper presents a mathematical model for a flow shop scheduling problem consisting of m machine and n jobs with fuzzy processing times that can be estimated as independent stochastic or fuzzy numbers. In the traditional flow shop scheduling problem, the typical objective is to minimize the makespan). However,, two significant criteria for each schedule in stochastic models are: expectable m...

most of river engineering problems are complicated and need to be analyzed by three dimensional models of flow and sediment transport. considering the fact that computers and numerical methods with great ability of flow and sediment transport simulation are developing quickly, using numerical modeling by engineers is inevitable. nevertheless, before application, numerical models need to be veri...

Shunt currents in membrane-less soluble-lead-redox-flow-batteries (SLRFB) are observed open-circuit condition and found to depend on size of the stack, manifolds, flow rates charge/discharge parameters. Ramifications shunt performance SLRFB stacks with internal external manifolds reported. In case 3, 5 7-cells manifold design, charge current for middle cell decreases by 3.3%, 6%, 8.5%, while di...

This paper considers the problem of scheduling n jobs in the generalized tardiness flow shop problem with m machines. Seven algorithms are developed for finding a schedule with minimum total tardiness of jobs in the generalized flow shop problem. Two simple rules, the shortest processing time (SPT), and the earliest due date (EDD) sequencing rules, are modified and employed as the core of seque...

abstract background: intensive care unit is a center to provide comprehensive care for critically ill patients whose condition can be improved by receiving specialized care. the importance of accurate and rapid monitoring of patients at this precise moment is in recording patient data and its comparison with previous data. monitoring the patient by either devices or direct examination of the nu...

Cavitation is among the most complicated and common damages of spillway structures. This phenomenon is controlled by different parameters including the pressure, flow velocity, spillway surface material, operation time, and air flow content. The cavitation index is calculated along the spillway and compared with its critical value using the measured values of the flow’s hydraulic parameters. Th...