Results 61 to 70 of about 9,324,290 (200)

SDRE optimal control of drug administration in cancer treatment

, 2010
In this study, we apply State Dependent Riccati Equation (SDRE) based optimal control technique to a nonlinear tumor growth model. The model consists of three biological cells which are normal tissue, tumor and immune cells.
Banks, Stephen Paul, Salamci, Metin Uymaz, İtik, Mehmet   +2 more
core   +1 more source

Execution Time of Optimal Controls in Hard Real Time, a Minimal Execution Time Solution for Nonlinear SDRE

IEEE Access, 2020
Many engineering fields, such as automotive, aerospace, and the emerging challenges towards industry 4.0, have to deal with Real-Time (RT) or Hard Real Time (HRT) systems, where temporal constraints must be fulfilled, to avoid critical behaviours or ...
Andrea Bonci, Sauro Longhi, Giacomo Nabissi, Giuseppe Antonio Scala   +3 more
doaj   +1 more source

Varying Speed Cooperative Differential Game Guidance Laws With Intercept Angle Constraints

International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.
For intercepting modern highly maneuvering targets, considering the velocity variation of adversaries, a varying speed cooperative differential games guidance method is proposed, which can enable multiple air‐to‐air missiles to intercept targets at a predefined relative intercept angle.
Chao Xiahou, Hao Zhou, Wanchun Chen, Liang Yang, Mohammad Rezwan Habib   +4 more
wiley   +1 more source

The age of leadership: Meta‐analytic findings on the relationship between leader age and perceived leadership style and the moderating role of culture and industry type

Personnel Psychology, Volume 77, Issue 4, Page 1403-1440, Winter 2024.
Abstract Managers' leadership style has a substantial impact on employee and organizational outcomes. In the present study, we consider the role of leaders’ chronological age in predicting followers’ perceptions of their leadership style. Whereas ample research uncovers relationships between individuals’ age and how these individuals are perceived by ...
Teodora K. Tomova Shakur, Michael S. North, Yair Berson, Shaul Oreg   +3 more
wiley   +1 more source

An analytical adaptive optimal control approach without solving HJB equation for nonlinear systems with input constraints

IET Control Theory &Applications, Volume 18, Issue 10, Page 1275-1288, July 2024.
The paper presents an analytical method to solve the optimal control problem for affine nonlinear systems with unknown drift dynamics. It introduces a new non‐quadratic cost function that considers input constraints and includes the cost of the feed‐forward component of the control law.
Zahra Tavanaei Sereshki, Heidar Ali Talebi, Farzaneh Abdollahi   +2 more
wiley   +1 more source

SDRE-Based Near Optimal Control System Design for PM Synchronous Motor [PDF]

, 2011
This paper presents a nonlinear optimal speed controller based on a state-dependent Riccati equation (SDRE) for permanent magnet synchronous motor (PMSM).
Choi, Han Ho, Do, Ton Duc, Jung, Jin-Woo
core   +1 more source

Hybrid control strategy using iterative learning and state-dependent Riccati equation for enhanced precision in parallel delta robots

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Parallel delta robots are widely used in industrial automation for high-speed, high-precision tasks such as pick-and-place operations. However, traditional control methods like Proportional-Derivative (PD) controllers often struggle to handle the ...
Morsy El Gezery, Mahmoud Abdelaal, Mohmad Osama, Ahmed Elassal   +3 more
doaj   +1 more source

A Factor H-Fc fusion protein increases complement-mediated opsonophagocytosis and killing of community associated methicillin-resistant Staphylococcus aureus.

PLoS ONE, 2022
Staphylococcus aureus employs a multitude of immune-evasive tactics to circumvent host defenses including the complement system, a component of innate immunity central to controlling bacterial infections.
Megan A G Sage, Katelyn D Cranmer, Michele L Semeraro, Shelby Ma, Elena V Galkina, Y Tran, Keith L Wycoff, Julia A Sharp   +7 more
doaj   +1 more source

Predictors of turnover amongst volunteers: A systematic review and meta‐analysis

Journal of Organizational Behavior, Volume 45, Issue 3, Page 434-458, March 2024.
Summary Volunteers represent a global workforce equivalent to 61 million full‐time workers. A significant decline in volunteering has highlighted the urgency to better understand and address turnover amongst volunteers. To address this, we conducted a systematic review and meta‐analysis of turnover amongst volunteers.
Vivien W. Forner, Djurre Holtrop, Edwin J. Boezeman, Gavin R. Slemp, Magdalena Kotek, Darja Kragt, Mina Askovic, Anya Johnson   +7 more
wiley   +1 more source

Optimization of Trajectory Tracking Control in Task Space for Dual-arm Space Robot

Jixie chuandong, 2020
For trajectory tracking control of a dual-arm space robot with uncontrolled base position and controlled base attitude in task space， an optimal control method based on state dependent Riccati equation （SDRE） is proposed. Firstly， based on the kinematics
Shuo Li, Xixing Li, Yan Zhao
doaj