Marginal cost measures the cost of producing one more unit of a good. Zero marginal cost occurs when extra units can be produced at no additional cost. Marginal costs include variable costs and can ...

Variable life insurance, also called variable appreciable life insurance, provides lifelong coverage, as well as a cash value account that you get to decide how to invest. Variable life insurance ...

Abstract: By utilizing a suspension cable to connect the payload with the quadrotor, transport tasks can be accomplished while preserving the unmanned aerial vehicle’s agility and maneuverability, ...

Abstract: Tails are flexible appendages that many vertebrates use for balance, gait stabilization, thrust generation, and more. While robots rarely have them, soft walking robots may benefit from a ...