Zobrazeno 1 - 10
of 365
pro vyhledávání: '"TOSHIYUKI OHTSUKA"'
Autor:
Toshiyuki Ohtsuka, Suthathip Umnouysin, Vilanee Suchewaboripont, Nada Yimatsa, Chadtip Rodtassana, Morimaru Kida, Yasuo Iimura, Shinpei Yoshitake, Nobuhide Fujitake, Sasitorn Poungparn
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-7 (2024)
Abstract Around one-third of the world’s most carbon-rich ecosystems, mangrove forests, have already been destroyed in Thailand owing to coastal development and aquaculture. Improving these degraded areas through mangrove plantations can restore va
Externí odkaz:
https://doaj.org/article/01fb926d1d26401fa6a030ef114557a0
Autor:
Shinji Ishihara, Toshiyuki Ohtsuka
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 16, Iss 1, Pp 247-256 (2023)
This study deals with the control methods for automating the operation of a hydraulic excavator loading soil onto the bed of a dump truck. The loading operation requires moving the bucket to a target position without contacting the dump truck. In add
Externí odkaz:
https://doaj.org/article/5ddcc9fd68d144e0bc7d850101bd8ba2
A recursive Riccati interior-point method for chance-constrained stochastic model predictive control
Autor:
Jingyu Zhang, Toshiyuki Ohtsuka
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 16, Iss 1, Pp 273-285 (2023)
This study covers the model predictive control of linear discrete-time systems subject to stochastic additive disturbances and state chance constraints. The stochastic optimal control problem is reformulated in a dynamic programming fashion to obtain
Externí odkaz:
https://doaj.org/article/ef9d626116f24632ad71ceab2288d2b4
Autor:
Jingyu Zhang, Toshiyuki Ohtsuka
Publikováno v:
IET Control Theory & Applications, Vol 17, Iss 10, Pp 1283-1294 (2023)
Abstract This study covers the output‐feedback model predictive control (MPC) of nonlinear systems subjected to stochastic disturbances and state chance constraints. The stochastic optimal control problem is solved in a stochastic dynamic programmi
Externí odkaz:
https://doaj.org/article/748d93ca11f34719b0f1af04a85c5af3
Autor:
Tomoyuki Iori, Toshiyuki Ohtsuka
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 13, Iss 6, Pp 282-290 (2020)
This paper proposes a recursive elimination method for optimal filtering problems of a class of discrete-time nonlinear systems with non-Gaussian noise. By this method, most of the computations to solve an optimal filtering problem can be carried out
Externí odkaz:
https://doaj.org/article/4ed72e5a5d72416cbf14ad372c08dba5
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 13, Iss 5, Pp 215-224 (2020)
We developed a load frequency control system with stochastic model predictive control (SMPC) for power systems where the market penetration of wind power generation is high. The controller adjusts the electricity price for heat pump water heaters whi
Externí odkaz:
https://doaj.org/article/7d5dc149e41b4fb2bd3063787371d0fe
Publikováno v:
Mechanical Engineering Journal, Vol 8, Iss 5, Pp 21-00204-21-00204 (2021)
This work applies real-time nonlinear model predictive control (NMPC) to fault-tolerant control problems of an unmanned aerial vehicle (UAV) with failed rotors. In the control problem, a hexacopter with up to three failed rotors out of the six availa
Externí odkaz:
https://doaj.org/article/d7138de5f2ea41fbae800de4dc0efb38
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 11, Iss 3, Pp 198-206 (2018)
This paper studies nonlinear finite-horizon optimal control problems with terminal constraints, where all nonlinear functions are rational or algebraic functions. We first extend a recursive elimination method, which decouples the Euler-Lagrange equa
Externí odkaz:
https://doaj.org/article/1a82fceab60c4a16bcb914cdd2dec3b1
Publikováno v:
Cell Reports, Vol 3, Iss 1, Pp 1-7 (2013)
Periodic somite segmentation is controlled by the cyclic gene Hes7, whose oscillatory expression depends upon negative feedback with a delayed timing. The mechanism that regulates the pace of segmentation remains to be determined, but mathematical mo
Externí odkaz:
https://doaj.org/article/e964d5dea10041e1abafb0489c82ffa2
Publikováno v:
Mechanical Engineering Journal, Vol 3, Iss 2, Pp 15-00345-15-00345 (2016)
Receding horizon control is a type of optimal feedback control in which control performance over a finite future is optimized with a performance index that has a moving initial time and terminal time. Spatiotemporal dynamic systems characterized by b
Externí odkaz:
https://doaj.org/article/df28a1b433e74f2ea2b12fac71a9d97d