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Mathematical Programming - This article studies the solutions of time-dependent differential inclusions which is motivated by their utility in optimization algorithms and the modeling of physical... 相似文献
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Aneel Tanwani 《PAMM》2015,15(1):31-34
We consider the problem of designing state feedback control laws for output regulation in a class of dynamical systems where state trajectories are constrained to evolve within time-varying, closed, and convex sets. The first main result states sufficient conditions for existence and uniqueness of solutions in such systems. We then design a static state feedback control law using the internal model principle, which results in a well-posed closed-loop system and solves the regulation problem. As an application, we demonstrate how control input resulting from the solution of a variational inequality results in regulating the output of the system while maintaining polyhedral state constraints. (© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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J. A. Isaacs A. Tanwani M. L. Healy L. J. Dahlben 《Journal of nanoparticle research》2010,12(2):551-562
The carbon nanotube market is steadily growing and projected to reach $1.9 billion by 2010. This study examines the economics
of manufacturing single-walled carbon nanotubes (SWNT) using process-based cost models developed for arc, CVD, and HiPco processes.
Using assumed input parameters, manufacturing costs are calculated for 1 g SWNT for arc, CVD, and HiPco, totaling $1.9 billion by 2010. This study examines the economics
of manufacturing single-walled carbon nanotubes (SWNT) using process-based cost models developed for arc, CVD, and HiPco processes.
Using assumed input parameters, manufacturing costs are calculated for 1 g SWNT for arc, CVD, and HiPco, totaling 1,906,
1,706, and1,706, and 485, respectively. For each SWNT process, the synthesis and filtration steps showed the highest costs, with direct
labor as a primary cost driver. Reductions in production costs are calculated for increased working hours per day and for
increased synthesis reaction yield (SRY) in each process. The process-based cost models offer a means for exploring opportunities
for cost reductions, and provide a structured system for comparisons among alternative SWNT manufacturing processes. Further,
the models can be used to comprehensively evaluate additional scenarios on the economics of environmental, health, and safety
best manufacturing practices. 相似文献
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