Results 61 to 70 of about 10,717 (265)

The Exact Solutions for a Point Mass Moving along a Stretched String on a Winkler Foundation

Shock and Vibration, 2014
This paper derives the exact solutions for a point mass moving along a stretched infinite string on a Winkler foundation at a constant velocity. The solutions for the contact force between the string and the mass are derived and then the displacement ...
Q. Gao, J. Zhang, H. W. Zhang, W. X. Zhong   +3 more
doaj   +1 more source

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

Advanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao, Hongbo Wang, Naipeng Li, Shuo Wang, Yaguo Lei, Tonghai Wu, Junyi Cao   +6 more
wiley   +1 more source

Chaotic dynamics of string around charged black brane with hyperscaling violation

Journal of High Energy Physics, 2020
By fast Lyapunov indicator (FLI), we study the chaotic dynamics of closed string around charged black brane with hyperscaling violation (HV). The Hawking temperature, Lifshitz dynamical exponent and HV exponent together affect the chaotic dynamics of ...
Da-Zhu Ma, Dan Zhang, Guoyang Fu, Jian-Pin Wu   +3 more
doaj   +1 more source

A Perspective on Interactive Theorem Provers in Physics

Advanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

Research of the Locating-Sub Hanging Technology for Velocity String

Shiyou jixie, 2019
After workover of low-yield gas wells in Qinghai, the existing velocity string snubbing technology has such problems as requiring additional special hanger, the main valve failed, and the wellhead and operation process needing reconstruction.
付悦, 吕维平, 陈波, 牛燕, 李伟, 张梦麟, 管璐   +6 more
doaj  

A Toolkit for Targeted Neuromodulation of Striatal Direct Pathway Neurons Rescues Parkinsonian Motor Deficits in Mice

Advanced Science, EarlyView.
An adeno‐associated virus (AAV) toolkit enables selective anatomical and functional targeting of striatal D1‐MSNs through retrograde transduction. Enhanced capsids and engineered enhancers drive robust transgene expression across murine and primate models.
Zexuan Hong, Yujing Zhang, Junjiao Zhang, Hanhe Liu, Qiwei Liu, Yanglei Li, Lixin Yang, Lixia Li, Zhongjie Liu, Zhen Yuan, Zhonghua Lu, Yefei Chen, Yuantao Li, Yuwu Jiang, Taian Liu   +14 more
wiley   +1 more source

The Influence of the Extension Length of the Testing String on the Liquid Carrying Efficiency

Shiyou jixie, 2020
In the open-hole testing, the optimal testing string extension length is difficult to determine. Improper testing string extension length will cause problems such as long deliquification time and fluid accumulation in the bottom hole. For this reason, an
Luo Ming, Yang Jin, Chen Xuyue, Meng Lingyu, Huang Yi, Wei Anchao, Fang Dake   +6 more
doaj  

Traction, deformation and velocity of deformation in a viscoelastic string

Evolution Equations and Control Theory, 2013
In this paper we consider a viscoelastic string whose deformation is controlled at one end. We study the relations and the controllability of the couples traction/velocity and traction/deformation and we show that the first couple behaves very like as in the purely elastic case, while new phenomena appears when studying the couple of the traction and ...
openaire   +3 more sources

A Pollen‐Enhanced Bionic Mechanoreceptor Induced by Asymmetric Ionic Convection in Hydrogel for Sensory‐Augmented Prostheses

Advanced Science, EarlyView.
This work proposed a pollen‐enhanced bionic mechanoreceptor based on ionic convection. Leveraging the ion anchoring effect of the pollen particle, the output performance could be ∼12 times higher than the original state. By employing deep learning models as AI brains, the feasibility of a sensory‐augmented prosthesis consisting of a pollen‐enhanced ...
Zi Hao Guo, Jingyu Deng, Yanzhang Xu, Chenchen Zhou, Yangshi Shao, Xiong Pu, Munho Kim, Namjoon Cho   +7 more
wiley   +1 more source

Numerical study on transient response of the bowed string

Mechanical Engineering Journal
This study focuses on the transient response in a bowed string with the stick-slip vibration for the clear understanding of its behavior and tone at the beginning of playing.
Miwa SUEDA, Yohei ONODA, Chiharu TADOKORO, Hiroki MORI, Ken NAKANO, Takuo NAGAMINE   +5 more
doaj   +1 more source