Results 21 to 30 of about 3,105,890 (299)

Closed-Form Equations for Contact Force and Moment in Elastic Contact of Rough Surfaces

open access: yesModelling and Simulation in Engineering, 2011
It is reasonable to expect that, when two nominally flat rough surfaces are brought into contact by an applied resultant force, they must support, in addition to the compressive load, an induced moment.
Ali Sepehri, Kambiz Farhang
doaj   +1 more source

Intermittent‐Contact Heterodyne Force Microscopy [PDF]

open access: yesJournal of Nanomaterials, 2009
Heterodyne Force Microscopy opens up a way to monitor nanoscale events with high temporal sensitivity from the quasistatic cantilever mechanical‐diode response taking advantage of the beat effect. Here, a novel heterodyne ultrasonic force method is proposed, in which the cantilever is driven in amplitude‐modulation mode, at its fundamental flexural ...
openaire   +1 more source

P1409Effectiveness of atrial fibrillation ablation using a contact force stability module with contact force or non-contact force catheter

open access: yesEP Europace, 2020
Abstract Funding Acknowledgements This study was funded by Biosense Webster, Inc. Background Catheter ablation is a mainstream treatment option for atrial fibrillation (AF).
Y Khaykin   +13 more
openaire   +1 more source

Dependence of kinetic friction on velocity: Master equation approach [PDF]

open access: yes, 2011
We investigate the velocity dependence of kinetic friction with a model which makes minimal assumptions on the actual mechanism of friction so that it can be applied at many scales provided the system involves multi-contact friction.
Braun, Oleg, Peyrard, Michel
core   +4 more sources

Force‐Sensing Catheters During Pediatric Radiofrequency Ablation: The FEDERATION Study

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017
Background Based on data from studies of atrial fibrillation ablations, optimal parameters for the TactiCath (TC; St. Jude Medical, Inc) force‐sensing ablation catheter are a contact force of 20 g and a force‐time integral of 400 g·s for the creation of ...
Aarti S. Dalal   +4 more
doaj   +1 more source

Gamble mode: Resonance contact mode in atomic force microscopy [PDF]

open access: yes, 1996
Active noise reduction has been accomplished in atomic force microscopy by applying a high frequency, low amplitude vibration to the cantilever while it is in contact with a surface.
Baldeschwieler, J. D.   +3 more
core   +1 more source

Local impedance measurements during contact force‐guided cavotricuspid isthmus ablation for predicting an effective radiofrequency ablation

open access: yesJournal of Arrhythmia, 2022
Background An ablation catheter capable of contact force (CF) and local impedance (LI) monitoring (IntellaNav StablePoint, Boston Scientific) has been recently launched.
Takehito Sasaki   +10 more
doaj   +1 more source

Forcing contact inhibition of locomotion

open access: yesTrends in Cell Biology, 2015
Contact inhibition of locomotion drives a variety of biological phenomenon, from cell dispersion to collective cell migration and cancer invasion. New imaging techniques have allowed contact inhibition of locomotion to be visualised in vivo for the first time, helping to elucidate some of the molecules and forces involved in this phenomenon.
Roycroft, A, Mayor, R
openaire   +3 more sources

Study on Sinusoidal Post-Buckling Deformation of Coiled Tubing in Horizontal Wells Based on the Separation Constant Method

open access: yesMachines, 2023
In this paper, a set of partial differential equations considering the dynamic effects of the coiled tubing (CT) is established based on the bending theory of slender beams considering the axial loads.
Zhuang Li   +3 more
doaj   +1 more source

Instability of Contact Resistance in MEMS and NEMS DC Switches under Low Force: the Role of Alien Films on the Contact Surface

open access: yesSensors, 2013
The metal contact is one of the most crucial parts in ohmic-contact microelectromechanical (MEMS) switches, as it determines the device performance and reliability.
Haodong Qiu, Hong Wang, Feixiang Ke
doaj   +1 more source

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