Results 111 to 120 of about 8,467 (259)

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

General solutions of the Maxwell’s equations for a mechano-driven media system (MEs-f-MDMS)

Journal of Physics Communications
For engineering electromagnetism, media/objects have shapes and sizes and may move with accelerations along complex trajectories in reference to the observers in the Laboratory frame.
Zhong Lin Wang
doaj   +1 more source

Effective Maxwell’s Equations for Perfectly Conducting Split Ring Resonators

, 2018
We analyze the time harmonic Maxwell’s equations in a geometry containing perfectly conducting split rings. We derive the homogenization limit in which the typical size η of the rings tends to zero.
Ben Schweizer, Schweizer, Ben, Robert Lipton, Lipton, Robert   +3 more
core   +1 more source

Unidirectional Evaporation‐Induced Tunable and Continuous Gradient Composite Structure for Absorption‐Dominant Electromagnetic Interference Shielding

Advanced Science, EarlyView.
A continuous conductivity gradient is formed in a porous MXene/melamine foam via directional evaporation, thereby improving impedance matching and enhancing electromagnetic attenuation. The resulting monolithic composite delivers absorption‐dominant EMI shielding with ultralow reflection, offering a simple route toward lightweight EMI shielding ...
Dawei Zhang, Yan Zhang, Baosong Li, Abdallah Kamal, Haider Butt, Kin Liao, Lianxi Zheng   +6 more
wiley   +1 more source

Homogenization of Maxwell's equations in a layered system beyond the static approximation. [PDF]

Sci Rep, 2020
Merzlikin AM, Puzko RS.
europepmc   +1 more source

Wide Temperature Zero Thermal Expansion in Al Matrix Composites with High Thermal Conductivity

Advanced Science, EarlyView.
Strain engineering strategy is implemented on the negative thermal expansion (NTE) phase Zn1.6Mg0.4P2O7 within composites, where Al matrix‐induced compressive strain drives uniform polyhedral and unit cell evolution, thereby enabling broad and consistent thermal compensation efficacy and obtaining good thermal performance.
Jinrui Qian, Feixiang Long, Yiqing Liu, Longlong Fan, Mingqing Liao, Qilong Gao, Hao Lu, Dexiang Gao, Le Kang, Yuzhu Song, Xiuzhu Han, Yue Sun, Naike Shi, Chang Zhou, Jun Chen   +14 more
wiley   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Multiphysics Simulation of Antiferromagnetic Spin Dynamics and Electromagnetic Fields

IEEE Access
Antiferromagnetic materials (AFMs) are promising candidates for use in spintronic and terahertz (THz) devices because of their ultrafast spin dynamics.
Tomoki Mukita, Seiya Kishimoto, Katsuji Nakagawa, Shinichiro Ohnuki   +3 more
doaj   +1 more source

Heterogeneous multiscale method for Maxwell’s equations

, 2018
We present a Finite Element Heterogeneous Multiscale Method (FE-HMM) for time-dependent Maxwell’s equations in first-order formulation in highly oscillatory materials using Nédélec’s edge elements.
Stohrer, Christian, Maier, Bernhard, Hochbruck, Marlis   +2 more
core   +1 more source

Quantifying Structure–Property Relationships in Ferroelectric Polymers Toward High‐Performance Soft Robots

Advanced Science, EarlyView.
Here, we establish a quantitative relationship between the electrostriction coefficient (Q33) of FRPs and their interplanar spacing (d): Q33 = 100(Δd/d0+1) × Q33(s). Using this model, we fabricated high‐performance soft robots, including a biomimetic crawler (with a speed of 27 cm/s) and a butterfly (with a thrust‐to‐weight ratio of 0.71).
Ba Qin, Guotong Ding, Wanli Xing, Xiaoyu Yang, Wenxuan Li, Zhemin Chen, Shaobo Tan, Xiaoyong Wei, Zhicheng Zhang   +8 more
wiley   +1 more source