Results 81 to 90 of about 16,086 (263)

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Multiscale electromagnetic–thermal–fluid field coupling model for oil-immersed transformers

Frontiers in Mechanical Engineering
Accurate predictions of the hotspot temperatures within large oil-immersed transformers are critical to their operational safety and longevity. The present work explores a novel multiscale electromagnetic–thermal–fluid indirect coupling model to address this challenge.
Mingzhi Peng, Yao Xu, Yongbo Hu, Tiantian Liu, Yu Wang, Ruiting Jiao   +5 more
openaire   +1 more source

Deep Learning Inverse Design of Phase‐Change Reconfigurable Terahertz Metadevices for Multidimensional Secure Communication

Advanced Materials, EarlyView.
A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong, Xieyu Chen, Aarthy Nagarajan, Yi Yang, Zhihao Wang, Rui Yu, Chuang Zheng, Chunmei Ouyang, Xueqian Zhang, Tun Cao, Ranjan Singh, Zhen Tian   +11 more
wiley   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

Advanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim, Antonio Proctor Martinez, Yaoye Hong, Ziyun Zhang, Kun‐Yu Wang, Shu Yang   +5 more
wiley   +1 more source

Simulation analysis on magnetic core loss characteristic of valve reactor in UHVDC system

AIP Advances
Valve reactors (VR) with multiple magnetic cores are important electrical components in ultra-high voltage direct current systems. The impact current and high-order harmonics during their operation can lead to additional losses and temperature rise in ...
Yifan Wang, Jiaxin Yuan, Zuoquan Mo, Jiefu Tan, Xuzhe Li, Hang Zhou, Tie Chen   +6 more
doaj   +1 more source

NUMERICAL MODELING OF THE ELECTROMAGNETIC FIELD WITHIN THE INDUCTION HARDENING OF INNER CYLINDRICAL SURFACES [PDF]

Journal of Electrical and Electronics Engineering, 2008
The paper presents the numerical modeling ofelectromagnetic field within the induction hardening ofinner cylindrical surface. The numerical computation hasbeen done by means of finite element method in order tosolve the coupled electromagnetic and ...
C. O. MOLNAR, V. D. SOPRONI, F. I. HATHAZI, M. N. ARION, G. R. CHEREGI   +4 more
doaj  

Nocturnal Intraocular Pressure Monitoring With a Soft Contact Lens Sensor for Glaucoma Management

Advanced Materials, EarlyView.
A soft contact lens sensor enables continuous, noninvasive monitoring of nocturnal intraocular pressure (IOP) under closed‐eye sleep conditions. By integrating a highly compliant inductive–capacitive circuit onto a commercial lens, the device achieves record sensitivity and stable performance.
Yumin Dai, Tristan Michael Long, Oluwabunmi T. Oladele, Youngoh Lee, Feiyang Li, Ziheng Wang, Yeonji Oh, Junsang Lee, Taewoong Park, Tianhao Yu, Seokkyoon Hong, Kyeonghee Lim, Jinheon Jeong, Dawn Meyer Schneider, Hyerim Ra, Bryan W. Boudouris, Gillian C. Shaw, Shin Ae Park, Pete S. Kollbaum, Chi Hwan Lee   +19 more
wiley   +1 more source

Coupled Electromagnetic-Thermal Multiphysics Analysis and Design Optimization of a Microwave Kiln

Applied Sciences
This study presents a multiphysics investigation of a microwave kiln for the glass-casting process, focusing on the coupled interaction between electromagnetic heating and thermal responses.
Chawit Samakkarn, Piyawong Poopanya, Jatuporn Thongsri   +2 more
doaj   +1 more source

Bias‐Field Free Single‐Frequency CW‐ODMR of Nitrogen‐Vacancy Centers in Diamond for the Detection of Transient Electrical Signals

Advanced Materials Interfaces, EarlyView.
Simplified quantum sensing technique for the detection of short electrical signals occurring in neuronal signaling or bioinspired technologies. We demonstrate a single frequency continuous‐wave optically detected magnetic resonance (CW‐ODMR) approach to sense signals that can be as short as 0.2 ms.
João Paulo Silva, Orlando D. Cunha, Pedro Magalhães, Filipe Camarneiro, Jana B. Nieder   +4 more
wiley   +1 more source

A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials

Advanced Materials Interfaces, EarlyView.
Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav, Shakti S. Gupta, Roger A. Sauer   +2 more
wiley   +1 more source