Results 61 to 70 of about 136,880 (300)

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Study on new frequency conversion control system and power balance control method of dual-motor for shearer traction unit

Advances in Mechanical Engineering, 2022
The drive system of shearer traction unit is affected by complex load interference and system structure, which results in the problem of unbalanced power of dual-motor of shearer traction unit. A new type of dual-motor frequency conversion control system
Qinghua Mao, Maomao Lu, Xuhui Zhang, Min Zeng, Jianbo Zhao, Shikun Li   +5 more
doaj   +1 more source

Control for an Autonomous Bicycle [PDF]

, 1995
The control of nonholonomic and underactuated systems with symmetry is illustrated by the problem of controlling a bicycle. We derive a controller which, using steering and rear-wheel torque, causes a model of a riderless bicycle to recover its balance ...
Getz, Neil H., Marsden, J. E.
core  

Laws of crack motion and phase-field models of fracture

, 2008
Recently proposed phase-field models offer self-consistent descriptions of brittle fracture. Here, we analyze these theories in the quasistatic regime of crack propagation.
Adda-Bedia, Alain Karma, Ambrosio, Amestoy, Aranson, Barenblatt, Bourdin, Brener, Broberg, Cotterell, Deegan, Eastgate, Eshelby, Eshelby, Francfort, Goldstein, Griffith, Gurtin, Hakim, Hauch, Henry, Henry, Hutchinson, Karma, Karma, Katzav, Landau, Marconi, Marder, Marder, Mumford, Oleaga, Rice, Sih, Sommer, Spatschek, Vincent Hakim, Wang, William   +38 more
core   +2 more sources

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source

Analysis of the phases of sprint in terms of isokinetic leg strength, anaerobic endurance, and balance [PDF]

Journal of Men's Health
Background: The 100 m sprint in track and field is widely used to demonstrate human capacity for extreme speed. However, there is limited research on how isokinetic leg strength, balance, and anaerobic endurance affect specific phases of sprinting ...
İbrahim Halil Şahin, Ali Osman Kıvrak
doaj   +1 more source

Critical Field of Spin Torque Oscillator with Perpendicularly Magnetized Free Layer

, 2013
The oscillation properties of a spin torque oscillator consisting of a perpendicularly magnetized free layer and an in-plane magnetized pinned layer are studied based on an analysis of the energy balance between spin torque and damping.
Arai, Hiroko, Imamura, Hiroshi, Kubota, Hitoshi, Tamaru, Shingo, Taniguchi, Tomohiro, Tsunegi, Sumito   +5 more
core   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

Advanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot, Andrea Cosola, Eléonore Aïdonidis, Jérôme Fresnais, Clément Sanchez, Philippe Belleville, Giancarlo Rizza, Marco Faustini   +7 more
wiley   +1 more source

Design of Spring Static-Balanced Serial Manipulators for Reduced Spring Attachment Adjustments

Machines
This paper presents a design of spring static-balanced manipulators for reduced spring attachment adjustments. Gravitational joint torque is balanced by spring torque to maintain static balance, but joint reaction force by gravity force and spring force ...
Chi-Shiun Jhuang, Dar-Zen Chen
doaj   +1 more source