Results 41 to 50 of about 15,604,227 (248)

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

Advanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt, Stephan Müssig, Robert Luxenhofer, Karl Mandel   +3 more
wiley   +1 more source

Enhanced Magnetism in Cation‐Modulated Manganite Heterostructures

Advanced Materials Interfaces, EarlyView.
Magnetic contrast is introduced within a single manganite system via a small modulation of the cation ratio. Enhanced magnetization occurs in superlattices with small stoichiometric differences. The combined SQUID, polarized neutron reflectometry, and x‐ray absorption spectroscopy results are consistent with the interfacial electronic reconstruction ...
Sangkyun Ryu, R. F. Need, Brian Kirby, Tae‐Yeol Jeon, Younghak Kim, Jin H. Cho, Sungkyun Park, Hyoungjeen Jeen   +7 more
wiley   +1 more source

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

Advanced Optical Materials, EarlyView.
Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata, Ryuichiro Asatani, Saiki Suzuki, Md Abdullah Al Masud, Hotaka Sakaguchi, Jun Okabayashi, Shinji Isogami, Takayuki Ishibashi   +7 more
wiley   +1 more source

Condition monitoring system for cyclically loaded components using electromagnetic acoustic transducers - EMUS-4-STRESS

, 2022
The restructuring of energy production worldwide towards increasing use of solar and wind energy is directly coupled to increasing load dynamics of fossil and nuclear power plants. This leads to a rising amount of stress-induced fatigue.
Smaga, Marek, Rudolph, Jürgen, Daniel, Tobias, Szielasko, Klaus, Thieltges, Sascha Benjamin, Veile, Ines, Weber, Fabian, Weikert-Müller, Miriam, Bergholz, Steffen, Beck, Tilmann, Bechtgold, Eduard   +10 more
core   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 more
wiley   +1 more source

Domestic Development of 350 km/h High-SpeedEMUs Wind Ventilator Equipment

机车电传动, 2014
Combined with high-speed EMUs comfort requirements, 350 km/h high-speed EMUs wind ventilator equipment roles andfunctions were introduced and further elaborated from the device domestically developed technical solutions, design and ...
LI Bi-yu, LIU Chang-qing, SHI Dong-shan, XIONG Yu-yu, XIN Ben-yu   +4 more
doaj  

Overcoming the Trade‐Off Between Magnetic Coupling and Electrical Insulation in Soft Magnetic Materials via Nanochain Engineering

Advanced Science, EarlyView.
This study employs a nanochain engineering approach combined with an in situ oxidation strategy to fabricate self‐insulating iron‐based magnetic nanochains, addressing the challenge of balancing magnetic coupling and electrical insulation in soft magnetic materials.
Dingrong Zuo, Lichen Liu, Haibo Ke, Rongsheng Bai, Huaping Ding, Jing Zhou, Zhenxiang Cheng, Peng Yu, Weihua Wang   +8 more
wiley   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Low-Frequency Oscillation Suppression of the Vehicle–Grid System in High-Speed Railways Based on H∞ Control

Energies, 2018
Recently, a traction blockade in the depots of numerous electric multiple units (EMUs) of high-speed railways has occured and resulted in some accidents in train operation.
Zhaozhao Geng, Zhigang Liu, Xinxuan Hu, Jing Liu   +3 more
doaj   +1 more source

Chatter Control by Spindle Speed Variation in High-Speed Milling [PDF]

, 2009
High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape
Arnaud, Lionel, Insperger, Tamás, Seguy, Sébastien, Dessein, Gilles   +3 more
core   +1 more source