Results 1 to 10 of about 795,237 (312)
Control of Interconnected Mechanical Systems [PDF]
IFAC Proceedings Volumes, 2008 In this paper control systems design approach, based on siding mode methods, that allows maintain some functional relation - like bilateral or multilateral systems, establishment of virtual relation among mobile robots or control of haptic systems - is presented.
Şabanoviç, Asif +2 more
openaire +2 more sources
Synthesis of pressure reducing valve with enhanced functionality
Trudy Odesskogo Politehničeskogo Universiteta, 2017 Reduction valves are widely used in industry. Increasing requirements for accuracy of pressure adjustment in industrial hydraulic or pneumatic systems, as well as automation with maximum autonomy of these operations require the implementation of new ...
Ігор Іванович Сидоренко +2 more
doaj +7 more sources
Configuration Controllability of Simple Mechanical Control Systems [PDF]
SIAM Journal on Control and Optimization, 1997 The paper presents a thorough discussion of the configuration controllability of mechanical systems with the common Lagrangian \(L= {1\over 2}T- V\). The new controllability test is expressed in terms of the symmetric product \(\nabla_XY+ \nabla_YX\) of two vector fields.
Lewis, Andrew D., Murray, Richard M.
openaire +6 more sources
Agronomy, 2023 In order to explore the drag reduction mechanism of pneumatic subsoiling and study the influence of pneumatic subsoiling on the soil, this study used machine learning models to predict the working resistance of a pneumatic subsoiler and adopted random ...
Xia Li +5 more
doaj +1 more source
Energies, 2023 In response to the volatility of photovoltaic power generation, this paper proposes a short-term photovoltaic power generation prediction model (HWOA-MVMD-TPA-TCN) based on a Hybrid Whale Optimization Algorithm (HWOA), multivariate variational mode ...
Ranran Cao +4 more
doaj +1 more source
Notions of controllability for quantum mechanical systems [PDF]
Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228), 2002 In this paper, we define four different notions of controllability of physical interest for multilevel quantum mechanical systems. These notions involve the possibility of driving the evolution operator as well as the state of the system. We establish the connections among these different notions as well as methods to verify controllability.
ALBERTINI, FRANCESCA, D'ALESSANDRO D.
openaire +3 more sources
Weed Density Detection Method Based on a High Weed Pressure Dataset and Improved PSP Net
IEEE Access, 2023 Large-scale spraying on farmland is one of the most widely used weeding methods. Accurate weed density detection is of great significance for improving pesticide utilization and reducing environmental pollution.
Xia Li +4 more
doaj +1 more source
Effective Frequency Range and Jump Behavior of Horizontal Quasi-Zero Stiffness Isolator
Applied Sciences, 2023 The quasi-zero stiffness (QZS) isolator shows excellent characteristics of low-frequency vibration isolation. However, the jump behavior caused by the strong nonlinearity is a primary reason for the failure of QZS isolators.
Lixin Xu +4 more
doaj +1 more source
Reactive Mechanism of Cognitive Control System [PDF]
Cerebral Cortex, 2010 The prefrontal cortex (PFC) is thought to modulate the neural network state in favor of the processing of task-relevant sensory information prior to the presentation of sensory stimuli. However, this proactive control mechanism cannot always optimize the network state because of intrinsic fluctuation of neural activity upon arrival of sensory ...
Morishima, Y, Okuda, J, Sakai, K
openaire +3 more sources
Constraint Control of Nonholonomic Mechanical Systems [PDF]
Journal of Nonlinear Science, 2017 We derive an optimal control formulation for a nonholonomic mechanical system using the nonholonomic constraint itself as the control. We focus on Suslov's problem, which is defined as the motion of a rigid body with a vanishing projection of the body frame angular velocity on a given direction $\boldsymbolξ$. We derive the optimal control formulation,
Vakhtang Putkaradze, Stuart Rogers
openaire +3 more sources