Results 121 to 130 of about 3,306,688 (343)

Physical Intelligence in Small‐Scale Robots and Machines

Advanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

Solid-driven mechanism and experimental study based on surface acoustic wave microfluidic

AIP Advances, 2020
This study proposes a method to drive a solid by liquid–solid coupling and designs and manufactures a surface acoustic wave actuator to drive a wetted solid ball. The solid ball moves under surface acoustic wave microfluidic acoustic streaming.
Tinghua Li, Qingyun Huang, Shoubo Li, Yijuan Xie, Junlong Han, Yi Han, Yulin Lei, Hong Hu, Donglai Zhu   +8 more
doaj   +1 more source

Asymptotic wave-splitting in anisotropic linear acoustics

, 2009
Linear acoustic wave-splitting is an often used tool in describing sound-wave propagation through earth's subsurface. Earth's subsurface is in general anisotropic due to the presence of water-filled porous rocks.
B.L.G. Jonsson, Brekhovskikh, de Hoop, de Hoop, de Hoop, de Hoop, Doicu, Egorov, Engquist, Fishman, Gustafsson, He, Horn, Johansson, Jonsson, Jonsson, Jonsson, Kristensson, Kristensson, Landau, Le Rousseau, Lundstedt, M. Norgren, Malcolm, Morro, Rikte, Shubin, Stolk, Stolk, Weston, Weston, Weston, Wu, Zhang   +33 more
core   +1 more source

Standing Surface Acoustic Wave Based Cell Coculture

Analytical Chemistry, 2014
Precise reconstruction of heterotypic cell–cell interactions in vitro requires the coculture of different cell types in a highly controlled manner. In this article, we report a standing surface acoustic wave (SSAW)-based cell coculture platform.
Sixing Li, Feng Guo, Yuchao Chen, X. Ding, Peng Li, Lin Wang, C. Cameron, T. Huang   +7 more
semanticscholar   +1 more source

Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics

Advanced Materials, EarlyView.
This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang, Zehui Lv, Xuejie Cai, Yingjie Wang, Bo Peng, Haojing Xu, Hualuo Pang, Xingdong Yang, Jiawei Xu, Yixin Bian, Bin Feng, Peng Wen, Yufeng Zheng, Xisheng Weng   +13 more
wiley   +1 more source

Acoustic Wave Time Difference Acquisition and Extraction Method in Oversized Wellbore and Unconsolidated Stratum

Cejing jishu
In the ultra-deep oil and gas exploration in the southern margin of Junggar basin, the P-wave time difference cannot be obtained effectively, because the acoustic energy is affected by the attenuation of oversized wellbore and unconsolidated stratum in ...
LIN Jingqi, ZHOU Jufeng, CAO Zhifeng, ZHANG Hao, LUO Xingping, CHEN Huayong   +5 more
doaj   +1 more source

Scarring in a driven system with wave chaos

, 2004
We consider acoustic wave propagation in a model of a deep ocean acoustic waveguide with a periodic range-dependence. Formally, the wave field is described by the Schrodinger equation with a time-dependent Hamiltonian.
A. L. Virovlyansky, Abdullaev S. S., Abdullaev S. S., G. M. Zaslavsky, Jensen F. B., Marcuse D.   +5 more
core   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

Advanced Materials, EarlyView.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim, In‐Kook Hwang, Kyoung‐Woong Moon, Kyongmo An, Kyung‐Jin Lee, Jae‐Hyeon Ko, Byong‐Guk Park, Kwang‐Yong Choi, Chanyong Hwang   +8 more
wiley   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Effect of Intake Acoustic Reflection on Blade Vibration Characteristics

Aerospace
Recent studies in turbomachinery have shown that the phase of acoustic wave reflection within an intake can have either positive or negative effects on the aeroelastic stability of fan rotor blades. However, the typical flow structures, such as the shock
Hui Yang, Hui Liang, Yun Zheng
doaj   +1 more source