This paper studies unmanned aerial vehicles (UAV) enabled industrial Internet of Things while a UAV dispatched to collect data low-power ground sensor nodes (SNs) in multi-obstacle environment. The authors aim minimize the completion time satisfying communication link constraints each SN and obstacle avoidance, collection requirements etc. To this end, first formulate minimization problem by jo...

The four-machine flowshop scheduling problem is investigated with the objective of minimizing total completion time. Job processing times are uncertain where only lower and upper bounds known. This common in some manufacturing environments. Some mathematical (dominance) relations established, an algorithm (with ten scenarios) proposed. proposed converts to a single machine for which optimal sol...