Results 41 to 50 of about 454,764 (296)

Design and implementation of hardware-in-the-loop (HIL) test-bed for spacecraft attitude control [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2019
In this paper, the design and implementation of hardware-in-the-loop (HIL) test-bed for spacecraft attitude control are presented with respect to the practical consideration.
Vahid Bohlouri   +5 more
doaj   +1 more source

Torque ripple reduction of a direct-drive permanent-magnet synchronous machine by material-efficient axial pole pairing [PDF]

open access: yes, 2011
This paper investigates a material-efficient axial pole pairing method for torque ripple reduction in a direct-drive outer-rotor surface-mounted permanent-magnet synchronous machine.
Patrick Chi-Kwong Luk   +3 more
core   +1 more source

A Study on Optimal Compensation Design for Meteorological Satellites in the Presence of Periodic Disturbance

open access: yesApplied Sciences, 2018
Periodic disturbance may cause serious effects on the attitude of meteorological satellites, and the attenuation of periodic disturbance is required. In this paper, a fundamental study on the optimal design of constant compensations against known-law ...
Shijie Xu   +3 more
doaj   +1 more source

A Self-Learning Solution for Torque Ripple Reduction for Non-Sinusoidal Permanent Magnet Motor Drives Based on Artificial Neural Networks [PDF]

open access: yes, 2013
This paper presents an original method, based on artificial neural networks, to reduce the torque ripple in a permanent-magnet non-sinusoidal synchronous motor.
WIRA, Patrick   +7 more
core   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Energy-Efficient Power Assist Control with Periodic Disturbance Observer and Its Experimental Verification Using an Electric Bicycle

open access: yesSICE Journal of Control, Measurement, and System Integration, 2017
This paper addresses the problem of energy-efficient power assist control for quasiperiodic motions. The simplest assist method would be to apply additional torque in proportion to the instantaneous value of torque generated by a user.
Kazuyoshi Hatada   +2 more
doaj   +1 more source

Supporting AI Readiness Through Digital Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Digitalization drives innovation in materials science by connecting data silos and turning heterogeneous processes into reusable research pipelines. Across 13 MaterialDigital projects, digital workflows reveal complementary pathways toward AI‐ready materials research, founded on structured data, persistent artifacts, executable orchestration, and ...
Marian Bruns   +67 more
wiley   +1 more source

Structural Power Composites Based on High Mass Loading Zn‐Ion Hybrid Supercapacitors with Metal Mesh Current Collectors and Aramid Nanofiber/Glass Fiber Composite Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi   +8 more
wiley   +1 more source

THE INVESTIGATION OF TORQUE CAUSED BY THE FRICTIONAL FORCE (FRICTIONAL TORQUE) [PDF]

open access: yes, 2011
The objective of this essay, is to analyse what factors are affecting on the friction torque. In this essay, I tried to reach the friction torque values from different methods and unique experiments.
Aldatmaz, Umut Servan
core   +1 more source

The Precision Improvement of Robot Integrated Joint Module Based on a New ADRC Algorithm

open access: yesMachines
This article analyzes the factors causing the precision error of the robot joint module, such as gear meshing disturbance, output elastic deformation, and load mutation.
Gang Wang, Shuhua Fang
doaj   +1 more source

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