TY - GEN
T1 - Dynamic programming based approach for optimal transport by flashing ratchet against a load force
AU - Roychowdhury, Subhrajit
AU - Saraswat, Govind
AU - salapaka, murti v
PY - 2013
Y1 - 2013
N2 - Flashing ratchet is a mechanism which employs noise under isothermal and non equilibrium conditions. Its primary is to transport of small particles, possibly against a load force, under the influence of thermal noise and potential energy landscapes that can be realized locally, near the particles position. In this article we present a dynamic programming based approach to analyze and synthesize optimal strategies in the presence of a non-zero load force and finite sampling intervals. We show that it is possible to obtain an order increase in velocity and stalling force, over open-loop strategies. Besides engineered systems, study of such strategy is also important to gain insights on the intra-cellular transport of motor proteins (such as Kinesin and Dynein) on a microtubular track, and on the role of feedback control on their transport.
AB - Flashing ratchet is a mechanism which employs noise under isothermal and non equilibrium conditions. Its primary is to transport of small particles, possibly against a load force, under the influence of thermal noise and potential energy landscapes that can be realized locally, near the particles position. In this article we present a dynamic programming based approach to analyze and synthesize optimal strategies in the presence of a non-zero load force and finite sampling intervals. We show that it is possible to obtain an order increase in velocity and stalling force, over open-loop strategies. Besides engineered systems, study of such strategy is also important to gain insights on the intra-cellular transport of motor proteins (such as Kinesin and Dynein) on a microtubular track, and on the role of feedback control on their transport.
KW - Flashing ratchets
KW - cellular transport
KW - dynamic programming
KW - stochastic differential equations
KW - switched/hybrid systems
UR - http://www.scopus.com/inward/record.url?scp=84902261675&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902261675&partnerID=8YFLogxK
U2 - 10.1109/CCA.2013.6662899
DO - 10.1109/CCA.2013.6662899
M3 - Conference contribution
AN - SCOPUS:84902261675
SN - 9781479915590
T3 - Proceedings of the IEEE International Conference on Control Applications
SP - 1105
EP - 1110
BT - 2013 IEEE International Conference on Control Applications, CCA 2013
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2013 IEEE International Conference on Control Applications, CCA 2013
Y2 - 28 August 2013 through 30 August 2013
ER -