Results 51 to 60 of about 434,876 (283)

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

All-composite honeycomb core sandwich structures: Master curves for stiffness-based design

Forces in Mechanics, 2022
Composite-walled hexagonal honeycomb core is considered for stiffness-based design. It is shown that the torsional and flexural stiffnesses of its all-composite sandwich may be 3- and 8-times higher, respectively, compared to structural foam core ...
Melih Papila, Ali Rana Atilgan
doaj   +1 more source

Biohybrid Crawling Robot With Spiral‐Spring Backbone and Inclined Legs for Enhanced Locomotion

Advanced Materials, EarlyView.
We present a biohybrid crawling robot integrating a muscle ring with a flexible skeleton combining two complementary structural elements. The spiral‐spring backbone enables large‐amplitude bending without compromising axial stability, while outward‐inclined legs with unequal front–rear lengths effectively convert deformation into directional strides ...
Tomohiro Morita, Minghao Nie, Shoji Takeuchi   +2 more
wiley   +1 more source

Finite Element Analysis of Torsional Stiffness and Hysteresis of the RV Reducer

Jixie chuandong, 2017
As the research object,the finite element model of a certain type of RV reducer is established in a finite software,considering the meshing stiffness of planetary gears and cycloid gears,elasticity of components and the bearing stiffness.
Zhang Yinghui, He Weidong, Chang Anquan, Zhang Fulai, Zhang Ziyang   +4 more
doaj  

High‐Mobility Chalcogenophene‐Engineered Diketopyrrolopyrrole Mixed Ionic‐Electronic Conductors With Doping Tolerance for Low‐Power Organic Electrochemical Transistors

Advanced Materials, EarlyView.
Chalcogen substitution emerges as a powerful strategy for designing high‐performance OMIECs. In aliphatic–glycol side chain diketopyrrolopyrrole polymers, biselenophene incorporation promotes a planar, polarizable, and doping‐tolerant quinoidal framework, enabling PDPP‐4EG‐Se2 to combine high hole mobility, large µC*, enhanced operational stability ...
Shinbee Oh, Tae Hoon Kim, Dahyun Jeong, Ji Hwan Kim, Seungjin Lee, Tan Ngoc‐Lan Phan, Alexander Tipan‐Quishpe, Myung‐Han Yoon, Keehoon Kang, Bumjoon J. Kim   +9 more
wiley   +1 more source

Kirigami‐Inspired Stretchable Silicon Solar Cell Modules as Portable Power Sources

Advanced Materials, EarlyView.
Kirigami‐inspired structured substrates are designed to craft stretchable silicon solar cell modules, showcasing remarkable stability upon deformation and retaining high output efficiency. This innovative approach holds great promise for the utilization of silicon modules for wearable devices.
Yusheng Zhang, Chenyi Zhang, Pei Wang, Yetai Cheng, Qi Liang, Yonghuan Li, Zhengdong Wei, Huanyu Zhou, Xinyi Kong, Minghua Li, Yifan Wang, Zhishan Bo, Yuqiang Liu, Antonio Facchetti   +13 more
wiley   +1 more source

Torsional Stiffness Calculation of Double-Enveloping Cycloid Drive

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
On a gear tooth surface, there may be some certain points which contact twice with its mating gear tooth surface. This phenomenon is called secondary action.
Jingya LIU, Shigeki MATSUMURA, Bingkui CHEN, Haruo HOUJOH   +3 more
doaj   +1 more source

The Effect of Torsional and Bending Stiffness on the Aerodynamic Performance of Flapping Wing

Aerospace, 2023
For large bird-like flapping wing aircraft, the fluid–structure coupling problem is very important. Through the passive torsional deformation of the wing, sufficient thrust is generated and propulsion efficiency is ensured.
Ming Qi, Wenguo Zhu, Shu Li
doaj   +1 more source

Parameter Investigation for Stamp Manufacturing of Complex 3D Geometries Using Nanoimprint Lithography

Advanced Materials Technologies, EarlyView.
Nanoimprint lithography can replicate complex 3D microstructures with undercuts using single‐layer polymer stamps of different elasticities. By combining experiments and simulations, T‐shaped geometries and suitable undercut radii were identified that minimize stress and defects during demolding.
Christos Julianos Karapatzakis, Selina Burkert, Cordelia Friederike Wittemann, Andreas Heinrich   +3 more
wiley   +1 more source

Design and fabrication of a twist fixture to measure torsional stiffness of a pick up chassis

MATEC Web of Conferences, 2018
Torsional stiffness is important parameter of chassis that affect the handling performance of chassis. Torsional stiffness can be determined using Finite Element Method (FEM) in early stage design of its. In order to validate the FEM result, experimental
Kurdi Ojo, Yob Mohd Shukri, Haji Ishamuddin Awisqarni, Suprihanto Agus, Widyanto Susilo Adi, Wibowo Dwi Basuki, Yulianti Ian   +6 more
doaj   +1 more source