Results 51 to 60 of about 19,554 (250)
Stick-slip instabilities in sheared granular flow: the role of friction and acoustic vibrations
, 2015 We propose a theory of shear flow in dense granular materials. A key ingredient of the theory is an effective temperature that determines how the material responds to external driving forces such as shear stresses and vibrations. We show that, within our
Carlson, J. M. +3 more
core +3 more sources
Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems
Advanced Functional Materials, EarlyView.MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley +1 more source
Research on Evaluation Model of Stick-Slip Vibration Intensity Based on PCA-LSTM
Shiyou jixie, 2023 Stick-slip vibration of downhole tools during petroleum drilling can lead to cyclic sticking and slip of the bits,which may cause failure of bits and bottomhole assembly(BHA)and consequently downhole accidents.Considering the latest downhole measurement ...
Zhang Xin +3 more
doaj
High speed imaging of traveling waves in a granular material during silo discharge
, 2011 We report experimental observations of sound waves in a granular material during resonant silo discharge called silo music. The grain motion was tracked by high speed imaging while the resonance of the silo was detected by accelerometers and acoustic ...
J. W. S. Rayleigh +2 more
core +1 more source
An In Situ Embedded B‐MOF Sponge With Shape‐Memory for All‐in‐One Diabetic Wound Therapy
Advanced Healthcare Materials, EarlyView.A smart shape‐memory sponge dressing (P1A3@B‐MOF) is developed for accelerated diabetic wound healing. It achieves pH‐responsive corelease of Zn2+ and salvianolic acid B, synergistically providing antibacterial action, repolarizing macrophages to the M2 phenotype, and promoting angiogenesis.
Hai Zhou +11 more
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 +4 more
doaj
Advanced Healthcare Materials, EarlyView.Schematic illustration of the SH bandage placed on an infected burn wound and its role in wound healing. A superhydrophobic PDMS membrane coated with the PS verteporfin is placed over the wound area and illuminated with a red laser at 690 nm, generating airborne 1O2 above the tissue.
Fernanda Viana Cabral +8 more
wiley +1 more source
Nonlinear analysis of axial-torsional vibration of drill string based on a 3 DOF model
Advances in Mechanical Engineering, 2022 Based on a model with three-degree-of-freedom, the nonlinear coupled axial-torsional vibration of drill string is numerically studied considering a modified contact model of bit-rock interaction.
Tao Yu +5 more
doaj +1 more source
Advanced Materials, Volume 37, Issue 13, April 2, 2025.Metal‐covalent organic frameworks (MCOFs) are novel porous materials that exhibit the advantages of covalent and metal‐organic frameworks. However, it is extremely difficult to resolve their atomic structure and better understand their structure‐properties relation. This work utilizes a synergistic combination of advanced microscopy, spectroscopic, and
Seán Hennessey +11 more
wiley +1 more source
Oscillation-based methods for actuation and manipulation of nano-objects [PDF]
, 2017 This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in AIP Conference Proceedings 1882, 020056 (2017) and may be found at https://doi.org/10.1063/1.5001635 ...
Popov, Valentin L.
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