Results 31 to 40 of about 3,105,890 (299)
The pantograph contact force measurement method in overhead catenary system using sparse modelling
Nihon Kikai Gakkai ronbunshu, 2023 In recent years, condition monitoring methods have been widely developed. Any failure of the overhead catenary system or pantographs will raise the long downtime of railway operation.
Takayuki USUDA +2 more
doaj +1 more source
Aging of the frictional properties induced by temperature variations [PDF]
, 2010 The dry frictional contact between two solid surfaces is well-known to obey Coulomb friction laws. In particular, the static friction force resisting the relative lateral (tangential) motion of solid surfaces, initially at rest, is known to be ...
Bertin, Eric, Géminard, Jean-Christophe
core +6 more sources
Study on the Mechanism of Rootstock Damage during Clamping in Watermelon Grafting
Horticulturae, 2022 Rootstock has a soft tissue that should be held carefully to avoid mechanical damage. Holding the rootstock stem is a significant factor in the grafting process, with direct consequences on the survival rate of grafting.
Kang Wu +5 more
doaj +1 more source
Frontiers in Cardiovascular Medicine, 2023 BackgroundHighly localized impedance (LI) measurements during atrial fibrillation (AF) ablation have the potential to act as a reliable predictor of the durability of the lesions created.ObjectiveWe aimed to collect data on the procedural parameters ...
Antoine Lepillier +19 more
doaj +1 more source
A Comparison of Micro-Switch Analytic, Finite element, and Experimental Results [PDF]
, 2004 Electrostatically actuated, metal contact, micro-switches depend on having adequate contact force to achieve desired, low contact resistance. In this study, higher contact forces resulted from overdriving cantilever beam style switches, after pull-in or ...
Coutu, Ronald A., Jr. +3 more
core +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
IEEE Access, 2019 Faults in vehicle sensor connectors are crucial to the safety of a vehicle. Once the connector is loosened according to the reduction of its contact forces, its electrical contact resistance may be increased, causing unexpected errors in sensor systems ...
Jangmuk Lim +5 more
doaj +1 more source
Stress in frictionless granular material: Adaptive Network Simulations
, 1999 We present a minimalistic approach to simulations of force transmission through granular systems. We start from a configuration containing cohesive (tensile) contact forces and use an adaptive procedure to find the stable configuration with no tensile ...
A. Ngadi +27 more
core +1 more source
Force-displacement relation in a tangential frictional contact with adhesion [PDF]
, 2018 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 2051, 020244 (2018) and may be found at https://doi.org/10.1063/1.5083487 ...
Popov, Valentin L.
core +1 more source
Contact forces in a granular packing [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 1999 We present the results of a systematic numerical investigation of force distributions in granular packings. We find that all the main features of force transmission previously established for two-dimensional systems of hard particles hold in three-dimensional systems and for soft particles, too.
Radjai, Farhang +2 more
openaire +3 more sources