Results 41 to 50 of about 173,243 (295)
Correlates of zooplankton beta diversity in tropical lake systems. [PDF]
PLoS ONE, 2014 The changes in species composition between habitat patches (beta diversity) are likely related to a number of factors, including environmental heterogeneity, connectivity, disturbance and productivity. Here, we used data from aquatic environments in five
Paloma M Lopes +8 more
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Exact regularized point particle method for multi-phase flows in the two-way coupling regime [PDF]
, 2014 Particulate flows have been largely studied under the simplifying assumptions of one-way coupling regime where the disperse phase do not react-back on the carrier fluid.
Casciola, C. M. +3 more
core +2 more sources
IEEE Access, 2023 Permanent Magnet Synchronous Motors (PMSMs) are employed in various high-precision industrial applications. However, the torque ripple caused by nonideal factors, such as cogging torque, flux harmonics, and unbalanced stator phase currents diminishes ...
Ty Trung Nguyen +2 more
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A cascade MPC control structure for PMSM with speed ripple minimization [PDF]
, 2013 This paper addresses the problem of reducing the impact of periodic disturbances arising from the current sensor offset error on the speed control of a PMSM. The new results are based on a cascade model predictive control scheme with embedded disturbance
Chai, Shan, Rogers, Eric, Wang, Liuping
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Sensors, 2020 Autonomous underwater missions require the construction of a stable visual sensing system. However, acquiring continuous steady image sequences is a very challenging task for bionic robotic fish due to their tight internal space and the inherent periodic
Jie Pan +3 more
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SAW torque transducers for disturbance rejection and tracking control of multi-inertia servo-drive systems [PDF]
, 2004 The paper proposes a resonance ratio control (RRC) technique for the coordinated motion control of multi-inertia mechanical systems, based on the measurement of shaft torque via a SAW-based torque sensor. Furthermore, a new controller structure, RRC plus
Bingham, C M +2 more
core +1 more source
Discrete-Time Design of Dual Internal Model-Based Repetitive Control Systems
Applied Sciences, 2022 This paper presents a novel design of discrete-time dual internal model-based repetitive control systems. The design strategy is accomplished by combining general and high-order modified repetitive control schemes for simultaneous tracking repetitive ...
Jalu A. Prakosa +7 more
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Hydrodynamic response of rotationally supported flows in the Small Shearing Box model [PDF]
, 2007 The hydrodynamic response of the inviscid small shearing box model of a midplane section of a rotationally supported astrophysical disk is examined. An energy functional ${\cal E}$ is formulated for the general nonlinear problem.
A. Sternberg +26 more
core +2 more sources
Applied SciencesIn the vector control of permanent magnet synchronous motor (PMSM), non-periodic disturbances such as cross-coupling between axes and variations in electrical parameters, along with periodic harmonic disturbances caused by inverter nonlinearities and ...
Jiawei Jin, Liang Guo, Wenqi Lu
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Active noise control for periodic disturbances [PDF]
IEEE Transactions on Control Systems Technology, 1998 This paper proposes an active noise control algorithm for periodic disturbances of unknown frequency. The algorithm is appropriate for the feedback case in which a single error microphone is used. The previously-proposed algorithm (Bodson et al. (1997)) for the rejection of sinusoidal noise sources is extended for the cancellation of multiple harmonics.
M. Bodson, J.S. Jensen, S.C. Douglas
openaire +1 more source