Results 71 to 80 of about 37,901 (338)

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

Advanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

Research on Stick-slip Vibration Level Estimation of Drillstring Based on SVM

Shiyou jixie, 2019
To evaluate the severity of stick-slip vibration of drill string, a risk assessment method based on factor analysis (FA) and support vector machine (SVM) is proposed.
Chen Chong, Zhang Shimin, Peng He, Cui Can, Liu Yang   +4 more
doaj  

Experimental comparison of five friction models on the same test-bed of the micro stick-slip motion system [PDF]

Mechanical Sciences, 2015
The micro stick-slip motion systems, such as piezoelectric stick-slip actuators (PE-SSAs), can provide high resolution motions yet with a long motion range. In these systems, friction force plays an active role.
Y. F. Liu, J. Li, Z. M. Zhang, X. H. Hu, W. J. Zhang   +4 more
doaj   +1 more source

Analysis of a dissipative model of self-organized criticality with random neighbors

, 1997
We analyze a random neighbor version of the OFC stick-slip model. We find that the mean avalanche size is finite as soon as dissipation exists in the bulk but that this size grows exponentially fast when dissipation tends to zero.Comment: 4 pages, TeX, 4
Chabanol, M. -L., Hakim, V.
core   +1 more source

Ionic‐Electronic Hydrogel‐Liquid Metal Composite Bilayer with Tissue‐Adaptive and Adhesive Properties for Closed‐Loop Neuroprosthetic System

Advanced Functional Materials, EarlyView.
A hydrogel–liquid metal composite peripheral nerve interface (HLB‐PNI) combines electrically durable electrodes and tissue‐adhesive hydrogel for tissue‐adaptive implantation. In nerve‐injured rats, it enables the diagnosis of sensory‐motor connectivity via stimulation and neural signal recording.
Yewon Kim, Kyoungryong Kim, Jaehyon Kim, Heewon Choi, Mikyung Shin, Donghee Son   +5 more
wiley   +1 more source

Rearrangements and Dilatancy for Sheared Dense Materials

, 2001
Constitutive equations are proposed for dense materials, based on the identification of two types of free-volume activated rearrangements associated to shear and compaction.
Anaël Lemaître, F. Radjai, H. Yoshizawa, M. L. Falk, O. A. Hassan, T. Boutreux   +5 more
core   +1 more source

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu, Younghoon Jung, Hojin Son, Min‐Young Kim, Jinsub Lim, Changhun Yun   +5 more
wiley   +1 more source

Effect of Fabric Weave on Stick-Slip Properties of Woven Fabrics

AUTEX Research Journal, 2014
The aim of this study was to understand the stick-slip properties of dry polyester plain, ribs and satin woven fabric weaves. It was found that the amount of stick-slip force was related to the number of interlacement points in the fabric, whereas the ...
Bilisik Kadir
doaj   +1 more source

Study on the Influence Factors Upon the Propensity to Stick-Slip Phenomenon During Vehicle Start-Up Process

IEEE Access, 2020
The vibration caused by the friction characteristic of the clutch during the vehicle start-up process has an impact on driveline torsional oscillation.
Dongyang Wang, Minghui Hu, Baogang Li, Datong Qin, Dongye Sun   +4 more
doaj   +1 more source

Quasi-logarithmic spacing law in dewetting patterns from the drying meniscus of a polymer solution

, 2012
We report on a periodic precipitation pattern emerged from a drying meniscus via evaporation of a polystyrene solution in a Petri dish. It appeared a quasi-logarithmic spacing relation in the pattern as a result of stick-slip motion of the contact line ...
Abkarian, Adachi, Chen, de Gennes, de Gennes, Deegan, Deegan, Dettre, Hitoshi Mahara, Karthaus, Kosuke Suzuki, Kuroda, Lagzi, Lam, Lin, Liu, Maheshwari, Pauliac-Vaujour, Ristenpart, Suematsu, Suzuki, Tomohiko Yamaguchi, Uchiyama, Watanabe, Wu, Yabu, Yong-Jun Chen   +26 more
core   +1 more source