Results 71 to 80 of about 282 (94)

Harnessing attention-driven hybrid deep learning with combined feature representation for precise sign language recognition to aid deaf and speech-impaired people. [PDF]

Sci Rep
Almjally A, Algamdi SA, Aljohani N, Nour MK.   +3 more
europepmc   +1 more source

The null effect of stress on cognitive flexibility in individuals with and without alcohol use disorder. [PDF]

Drug Alcohol Depend
Grodin EN, Kirsch DE, Nieto S, Belnap M, Castillo Y, Baker N, Wassum KM, Grant KA, Ray LA.   +8 more
europepmc   +1 more source

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External Disturbance Rejection by Use of an Add-On Nonlinear Controller in HDD Servo Systems

IEEE Transactions on Magnetics, 2013
A novel control method with an add-on nonlinear feedback controller is proposed in this paper to work together with the existing linear controller to deal with external disturbance in hard disk drive (HDD) systems. In the proposed control scheme, the capability of disturbance rejection is boosted when the tracking error of the control system gets ...
Qingwei Jia, Shuyu Cao, Guoxiao Guo, Jie Yu   +3 more
openaire   +3 more sources

Design and implementation of a dual-stage actuated HDD servo system via composite nonlinear control approach

Mechatronics, 2004
We consider in this paper the design and implementation of a dual-stage actuated hard disk drive (HDD) servo system, in which an additional piezoelectric actuator is mounted on top of the conventional voice-coil-motor (VCM) actuator to provide a faster and finer response. More specifically, the dual-stage actuated HDD servo system consists of a primary
Peng, K., Chen, B.M., Lee, T.H., Venkataramanan, V.   +3 more
openaire   +3 more sources

Reduced-Order $$H_{\infty }$$ Loop-Shaping Controller Design for Nonlinear Continuous-Time HDD Systems Using Hankel-Norm Approximation

Lecture Notes in Networks and Systems
This paper presents the design and analysis of a reducedorder H8 loop-shaping controller for nonlinear continuous-time Hard Disk Drive (HDD) systems. Utilizing the Hankel-norm approximation, we systematically reduce the controller order, aiming to preserve system performance while enhancing computational efficiency.
Ibrahim Shaikh, El Wardi Zerdazi, Abebe Alemu Wendimu, Radek Matušů, Sohaibullah Zarghoon, Samuel Emebu   +5 more
openaire   +3 more sources

Discrete-time Robust Nonlinear Feedback Control for an HDD Servo System Design

2006 9th International Conference on Control, Automation, Robotics and Vision, 2006
This paper presents a discrete-time robust non-linear control method to achieve fast and accurate set-point tracking for servo systems subject to actuator saturation and disturbances. The idea here is to use a combination of composite nonlinear feedback (CNF) control and disturbance estimation cum compensation.
Guoyang Cheng, Kemao Peng, Ben M. Chen, Tong Heng Lee   +3 more
openaire   +1 more source

Reduced-order H∞ loop-shaping controller design for nonlinear continuous-time HDD systems using Hankel-norm approximation

This paper presents the design and analysis of a reduced-order H∞ loop-shaping controller for nonlinear continuous-time Hard Disk Drive (HDD) systems. Utilizing the Hankel-norm approximation, we systematically reduce the controller order, aiming to preserve system performance while enhancing computational efficiency.
Shaikh, Ibrahim, Zerdazi, El Wardi, Wendimu, Abebe Alemu, Matušů, Radek, Zarghoon, Sohaibullah, Emebu, Samuel   +5 more
openaire   +1 more source

An experimental study of Horizontal Directional Drilling (HDD) in sand in a large flexible calibration chamber

Tunnelling and Underground Space Technology, 2023
Fernando Danziger
exaly  

Proposal and performance assessment of novel combined ORC and HDD cogeneration systems

Applied Thermal Engineering, 2016
Mortaza Yari
exaly