Results 91 to 100 of about 28,169 (290)

Snap‐Through–Driven Liquid Crystal Elastomers for High‐Power Remote Microneedle Actuation Toward Smart Livestock Systems

Advanced Functional Materials, EarlyView.
A magnetically assisted snap‐through liquid crystal elastomer transforms photochemical deformation into a high‐power mechanical impulse, enabling remote microneedle actuation and highlighting its potential for future smart livestock intervention systems.
Chae Won Lee, Nankyung Kim, SeungHyun Park, Dae Seok Kim   +3 more
wiley   +1 more source

Investigating the Effect of Engine Lubricant Viscosity on Engine Friction and Fuel Economy of a Diesel Engine [PDF]

Fuel economy is affected, both by fuel and engine lubricant quality. Engine lubricant quality plays a vital role in reduction of fuel consumption by effective reduction of friction between the contact surfaces of engine parts (piston ring assembly ...
Singh, Devendra
core  

Low-frequency internal friction in silica glass [PDF]

, 2007
Precise low-frequency internal friction measurements on vitreous silica, taken over a wide temperature (4 K160 K the loss angle develops a distinct step-like structure followed by a plateau, both independent of ν, thus signalling the onset of a competing
Vocca, H., GAMMAITONI, Luca, Bosi, L., Dari, A., MARCHESONI, Fabio, F. Cottone, L. Gammaitoni, Travasso, F., Gammaitoni, L., A. Dari, H. Vocca, COTTONE, FRANCESCO, TRAVASSO, FLAVIO, Amico, P., F. Marchesoni, P. Amico, VOCCA, Helios, L. Bosi, Cottone, F., Marchesoni, F., F. Travasso   +20 more
core   +1 more source

Study on the failure characteristics of sliding surface and stability analysis of inverted t-type retaining wall in active limit state.

PLoS ONE
This paper investigates the sliding surface failure characteristics, earth pressure distribution law and stability safety factor of inverted T-type retaining wall by using the finite element limit analysis software OptumG2, the effects of width of wall ...
Yongqing Zeng, Weidong Hu, Meixin Chen, Yinghuan Zhang, Xiaohong Liu, Xinnian Zhu   +5 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Cohesion and angle of internal friction during shearing of rock samples and stone materials in biaxial state of stress [PDF]

, 2020
W artykule przedstawiono zaprojektowane i wykonane urządzenie do realizacji badań wyznaczania spójności i kąta tarcia wewnętrznego skał i materiałów kamiennych przy ścinaniu.
Gawryś, Jerzy
core  

Origin of Internal Friction in Disordered Proteins Depends on Solvent Quality [PDF]

, 2018
Protein dynamics often exhibit internal friction; i.e., contributions to friction that cannot solely be attributed to the viscosity of the solvent. Remarkably, even unfolded and intrinsically disordered proteins (IDPs) exhibit this behavior, despite ...
Wenwei Zheng (652103), Hagen Hofmann (1907449), Robert B. Best (90146), Benjamin Schuler (220257)   +3 more
core   +3 more sources

INTERRELATION OF SHEAR ANGLES, EXTERNAL AND INTERNAL FRICTION DURING CHIP FORMATION

, 2020
The aim is to develop a methodology for graph-analytical calculation of the shear angle during the formation of chips for the case when the initial data are reliable empirical dependencies for the components of the cutting force. The research methodology is based on the application of elements of cutting theory to the scheme of chip formation and the ...
Volodymyr, Protsiv, Yuriy Kravchenko, Sergiy Patsera, Vitalii Derbaba   +3 more
openaire   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Stability analysis of ultra-high and steep reinforced soil fills slopes based on strength reduction [PDF]

Archives of Civil Engineering
The research focuses on solving the important problem of slope stability in the field of civil engineering. The study adopted an advanced strength double reduction coefficient method for slope stability analysis, which considers the different influence ...
Yucong Gao, Yue Zhao, Tianyuan Xu, Jinlong Xu   +3 more
doaj   +1 more source