Results 31 to 40 of about 31,628 (268)

Compensation of dry friction impact on the accuracy and stability of electromechanical systems with cable-block transmissions

Известия Томского политехнического университета: Промышленная кибернетика
The paper considers the electromechanical systems with cable-block transmissions. Their blocks have a small mass and are inertialess. In such transmissions, as a rule, one block is connected to the electric drive and serves as a drive block for ...
Sergey A. Gayvoronskiy
doaj   +1 more source

Nonlinear dynamics of dry friction

Journal of Physics A: Mathematical and General, 1997
The dynamical behavior caused by dry friction is studied for a spring-block system pulled with constant velocity over a surface. The dynamical consequences of a general type of phenomenological friction law (stick-time dependent static friction, velocity dependent kinetic friction) are investigated. Three types of motion are possible: Stick-slip motion,
openaire   +2 more sources

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

Investigating dry ski–snow friction

Friction
The easy gliding of skis on snow has long been attributed to several co-existing mechanisms, including dry friction, lubrication by frictional meltwater, and capillary suction, making it challenging to isolate their individual contributions. Experimental
Shiraz Ahmed Siddiqui, Michael Hasler, Martin Mössner, Joost van Putten, Werner Nachbauer   +4 more
doaj   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

Molecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu, Yubei He, Nikolaus Berndt, Michael Mülleder, Kathrin Textoris‐Taube, Jing Guo, Matthias Stechele, Justus Ramtke, Shraga Nahum Goldberg, Lynn Jeanette Savic   +9 more
wiley   +1 more source

Implementation of analytical models of the anisotropic combined dry friction in problems of pneumatics’ dynamics

MATEC Web of Conferences, 2018
An implementation of the theory of multi-component dry friction in some engineering problems of pneumatics’ dynamics is proposed. The main attention is devoted to the construction of analytical models of the combined dry friction accounting for the ...
Kireenkov Alexey, Zhavoronok Sergey
doaj   +1 more source

Dynamics of a Rolling Disk in the Presence of Dry Friction [PDF]

Journal of Nonlinear Science, 2005
In this paper we are interested in the dynamics and numerical treatment of a rolling disk on a flat support. The objective of the paper is to develop a numerical model which is able to simulate the dynamics of a rolling disk taking into account various kinds a friction models (resistance against sliding, pivoting and rolling).
Cédric Le Saux, Remco I. Leine, Christoph Glocker   +2 more
openaire   +2 more sources

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

FEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada, Takaaki Tanaka, Manaka Uehara, Keigo Nakano, Ken Morishima, Rintaro Inoue, Masaaki Sugiyama, Masafumi Yohda   +7 more
wiley   +1 more source

FRICTION COEFFICIENT DISPLAYED BY RUBBER SLIDING AGAINST FLOORING TILES [PDF]

Journal of the Egyptian Society of Tribology, 2012
The present work describes the frictional behaviour of ceramic tiles as flooring materials when soft and hard rubbers slide against them. The values of friction coefficient displayed by sliding of rubber against different types of flooring materials ...
W. A. Ali, M. K. Mohamed, A. A. ElKattan
doaj   +1 more source

On the calculation of a dry friction coefficient [PDF]

PAMM, 2019
AbstractNormal contact problems of rough surfaces have already been extensively investigated. For Gaussian surfaces, the normal force Fn is often found to be proportional to the real contact area A. Following the approach of Bowden and Tabor [1] for the tangential force Ft = τA, where τ denotes the yield shear stress of the softer surface, the friction
Oestringer, Lukas J., Proppe, Carsten
openaire   +2 more sources