Results 151 to 160 of about 207,815 (342)

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

open access: yesAdvanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma   +4 more
wiley   +1 more source

Robust Smart Superhydrophobic Cilia

open access: yesAdvanced Science, EarlyView.
To date, ciliated surfaces cannot withstand mechanical damage because cilia/wires are inherently fragile. By aligning magneto‐responsive, flexible, superhydrophobic microwires on the sidewall of vertical frames, the frames act as armors to protect microwires from mechanical damage; when needed, the microwires re‐align uprightly under a magnet field to ...
Chuanqi Wei   +4 more
wiley   +1 more source

The Detection of Gravitational Waves [PDF]

open access: yes, 2003
33 pages, 12 figures, LaTeX2e, Springer style files --included. For Proceedings of the ERE-2001 Conference (Madrid, September 2001)
openaire   +2 more sources

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Ocean Wave Energy Generators and Self‐Powered Wave Sensors Based on Triboelectric Nanogenerators

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The key milestones of ocean wave energy‐driven triboelectric nanogenerators (TENGs) from 2015 to 2024. The development of ocean wave energy‐driven TENGs has undergone multiple stages of evolution, particularly in the design of their outer structures, with the goal of more efficiently utilizing ocean wave motion.
Yunzhong Wang, Youhong Tang
wiley   +1 more source

Gravitational waves from cosmological first-order phase transitions with precise hydrodynamics

open access: yesEuropean Physical Journal C: Particles and Fields
We calculate the gravitational wave spectrum generated by sound waves during a cosmological phase transition, incorporating several advancements beyond the current state-of-the-art.
Chi Tian, Xiao Wang, Csaba Balázs
doaj   +1 more source

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