Results 51 to 60 of about 48,235 (309)
World Electric Vehicle Journal, 2023 The torque ripple of a switched reluctance motor (SRM) limits its application in electric vehicles. This paper proposes a DITC system for SRMs based on a novel multilevel converter (MLC), which aims at the problem that the torque ripple cannot be ...
Yan Cai +4 more
doaj +1 more source
Maximum Torque Per Ampere Control Strategy of a 5-phase PM Generator in healthy and faulty modes for tidal marine turbine application [PDF]
, 2014 The work presented in this paper aims to propose a control strategy being able to extract efficiently energy from a fixed-pitch marine current turbine associated with a 5–phase Permanent Magnet Synchronous Generator (PMSG) in healthy mode and in faulty ...
CHARPENTIER, Jean-Frederic +3 more
core +4 more sources
Advanced Functional Materials, EarlyView.Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández +12 more
wiley +1 more source
Advanced Functional Materials, EarlyView.This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou +4 more
wiley +1 more source
Methods and apparatus employing vibratory energy for wrenching Patent [PDF]
, 1970 Ultrasonic wrench for applying vibratory energy to mechanical ...
Blaise, H. T. +2 more
core +1 more source
Comparison of multiple stage braking circuits for wind driven generators [PDF]
, 2016 This paper presents multiple stage braking circuits for wind turbines with a permanent magnet synchronous generator. The system combines both passive converter circuit coupled to a resistive braking circuit.
Valchev, Vencislav Cekov +2 more
core +1 more source
Bio‐Friendly Artificial Muscles Based on Carbon Nanotube Yarns and Eutectogel Derivatives
Advanced Functional Materials, EarlyView.Solid‐state artificial muscles based on coiled commercial carbon nanotube yarns coated with eutectogel derivatives exhibit unipolar actuation through selective ion intercalation. Combining polyanionic and polycationic gels enables enhanced contractile stroke and high energy density.
Gabriela Ananieva +6 more
wiley +1 more source
Hydraulic Performance Analysis and Design of Torus of Flat Hydraulic Torque Converter
Jixie chuandong, 2015 The hydraulic flat torque converter is designed for the purpose of study on how the flatness ratio effect on the hydraulic performance. The flat torus new design method based on the ellipse is used. Four kinds of different flatness ratio hydraulic torque
Zhu Wenjie, Wu Guangqiang
doaj
Torque Ripple Minimization in a Switched Reluctance Drive by Neuro-Fuzzy Compensation
, 2000 Simple power electronic drive circuit and fault tolerance of converter are specific advantages of SRM drives, but excessive torque ripple has limited its use to special applications.
Branco, P. J. Costa +4 more
core +1 more source