منابع مشابه
The Response of Old Technology Incumbents to Technological Competition - Does the Sailing Ship Effect Exist?
This article investigates whether firms react to a radical technological substitution threat by a deliberate acceleration of innovation in their existing technology – the ‘sailing ship effect’. It has been argued that the effect is both significant and widespread and warrants a reexamination of our assumptions about the working of the competitive process (Rosenberg 1972). Reexamination of two c...
متن کاملSyddansk Universitet On steering a sailing ship in a wearing maneuver Jouffroy, Jerome
Compared to more conventional ships, little attention was given to nonlinear control design for ships sailing by the wind. Following our previous work, this paper addresses the issue of trajectory and reference input generation for a model that imitates the general behavior of sailing vessels. Specifically, we consider the generation of paths to perform a wearing maneuver. A feedforward control...
متن کاملRouting, ship size, and sailing frequency decision-making for a maritime hub-and-spoke container network
This study formulates a two-objective model to determine the optimal liner routing, ship size, and sailing frequency for container carriers by minimizing shipping costs and inventory costs. First, shipping and inventory cost functions are formulated using an analytical method. Then, based on a trade-off between shipping costs and inventory costs, Pareto optimal solutions of the twoobjective mod...
متن کاملReinforcement Sailing
This thesis examines applying reinforcement learning to sailing. We give two conceptually different models of a simple sailing boat. Standard tabular reinforcement learning is shown to be ineffective in controlling these naturally continuous models. We examine a method [Smith, 2001b] which adaptively quantises both the state and action spaces and show that it has similar performance to the tabu...
متن کاملSailing through uncertainty.
choice but to pursue science. My dad wouldn’t accept anything but a science degree. He told me in no uncertain terms that if I really wanted to be an English major or a writer, as I said I did, I would need to figure out how to pay for college on my own. I chose a school 2000 miles from home and overloaded my schedule with literature classes that I claimed were required, but I wasn’t brave or i...
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ژورنال
عنوان ژورنال: International Journal of Economics & Management Sciences
سال: 2018
ISSN: 2162-6359
DOI: 10.4172/2162-6359.1000507