Results 121 to 130 of about 104,269 (299)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This paper proposes a hybrid control strategy for flexible‐link manipulators that combines offline trajectory planning with adaptive tracking to suppress residual elastic vibration (REV) under unknown bounded disturbances. A rigid–flexible coupling dynamics model is first established using the floating‐frame method and Lagrange's equations ...
Mingming Shi +5 more
wiley +1 more source
Lagrange Multipliers in Locally Convex Spaces
Journal of Optimization Theory and ApplicationsWe give a general Lagrange multiplier rule for mathematical programming problems in a Hausdorff locally convex space. We consider infinitely many inequality and equality constraints. Our results gives in particular a generalisation of the result of J.
Mohammed Bachir, Joël Blot
openaire +4 more sources
Household Leverage and Fiscal Multipliers [PDF]
We study the size of fiscal multipliers in response to a government spending shock under different household leverage conditions in a general equilibrium setting with search and matching frictions.
Javier Andrés +2 more
core
Optimal Designs and Inspection Time Decisions for Gamma Accelerated Degradation Tests
Naval Research Logistics (NRL), EarlyView.ABSTRACT This study analytically derives optimal designs for gamma accelerated degradation tests while incorporating inspection time as a design variable under both D‐ and V‐optimality criteria. Under D‐optimality, we prove that the optimal design allocates test units exclusively to the lowest and highest stress levels and adopts the longest inspection
Hung‐Ping Tung, I‐Chen Lee
wiley +1 more source
An Adaptive Multiple Shooting Strategy for Optimal Control
Optimal Control Applications and Methods, EarlyView.We study how multiple shooting affects the convergence of Newton‐type methods for optimal control, comparing several shooting strategies across 40 benchmark problems. The study covers interior‐point and sequential quadratic programming methods with both Quasi‐Newton approximations and exact Hessians.
Robert Lampel, Sebastian Sager
wiley +1 more source
Feedback Linearisation with State Constraints
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Feedback Linearisation (FBL) is a widely used technique that applies feedback laws to transform input‐affine nonlinear control systems into linear control systems, allowing for the use of linear controller design methods such as pole placement.
Songlin Jin, Yuanbo Nie, Morgan Jones
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT The design of a hexapod is complex and requires integration between kinematic models, control systems, and sensing. Existing literature has reviewed these sub‐systems in isolation. Since 2021, there has been no review of the field despite significant advancements in soft soil, lunar traversal, and artificial intelligence.
Akhil Rampersad, Bashan Naidoo
wiley +1 more source
Lagrange Multipliers Revisited [PDF]
, 2013 The present paper was inspired by the work of Kuhn and Tucker [1]. These authors transformed a certain class of constrained maximum problems into equivalent saddle value (minimax) problems. Their work seems to hinge on the consideration of still a third type of problem.
openaire +1 more source
Sustainable Development, EarlyView.ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos +2 more
wiley +1 more source
Does Carbon Intensity Affect the Cost of Equity? An Empirical Study From Mexico
Sustainable Development, EarlyView.ABSTRACT Climate change poses significant risks for companies, particularly in emerging countries like Mexico, where sustainability perceptions are evolving. This study analyzes how carbon emissions affect the cost of equity capital (CoE) for Mexican firms.
Guillermo Pérez‐Elizundia +2 more
wiley +1 more source