Results 51 to 60 of about 19,738 (285)
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
Analysis of the effects of torsional impact tools on drill string stick–slip vibration
Energy Exploration & ExploitationTorsional impactor is widely used in deep and ultra-deep wells because it can suppress stick–slip vibration and increase ROP. As the direct factor affecting torsional impactor effect, it's working parameters study is still not sufficient.
Chaoyi She +5 more
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Suppression of Stick-Slip Vibration of Drill String by Fractional-Order PID Control
Shiyou jixie, 2020 Stick-slip vibration of drill string is one of the important reasons leading to accelerated wear and premature damage of drilling equipment, reduced drilling safety and reduced drilling efficiency.
Zhang Qizhi, Xu Shuai
doaj
Xibei Gongye Daxue Xuebao, 2019 In drilling field, drill-strings stick-slip vibration is a common phenomenon and may lead to a series of drilling accidents. In order to improve drilling efficiency, this paper commits to study a new control system to suppress the undesired stick-slip ...
doaj +1 more source
The dynamic characterisation of disk geometry particle dampers [PDF]
, 2005 Particle dampers (PDs) have the advantages of being simple in geometry, small in volume and applicable in extreme temperature environments. Experimental studies have shown that PDs can offer considerable potential for suppressing structural resonant ...
Duran +7 more
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Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
Modeling and Control of a Flexible Structure Incorporating Inertial Slip-Stick Actuators [PDF]
, 1999 Shape and vibration control of a linear flexible structure by means of a new type of inertial slip-stick actuator are investigated. A nonlinear model representing the interaction between the structure and a six-degree-of-freedom Stewart platform system ...
Darby, A. P., Pellegrino, S.
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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
Sensing and Quantifying a New Mechanism for Vehicle Brake Creep Groan
Shock and Vibration, 2019 This paper investigates the creep groan of a vehicle’s brake experimentally, analytically, and numerically. Experimentally, the effects of acceleration on caliper and strut, noise, brake pressure, and tension are measured.
Dejian Meng +4 more
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Modelling elastic structures with strong nonlinearities with application to stick-slip friction
, 2013 An exact transformation method is introduced that reduces the governing equations of a continuum structure coupled to strong nonlinearities to a low dimensional equation with memory.
Szalai, Robert
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