Results 81 to 90 of about 821,881 (278)

A Sliding Mode Multimodel Control for a Sensorless Photovoltaic System

, 2012
In this work we will talk about a new control test using the sliding mode control with a nonlinear sliding mode observer, which are very solicited in tracking problems, for a sensorless photovoltaic panel. In this case, the panel system will has as a set
Braiek, Naceur BenHadj, Kardous, Zohra, Rhif, Ahmed   +2 more
core  

Sliding Mode Control for Trajectory Tracking of a Non-holonomic Mobile Robot using Adaptive Neural Networks [PDF]

, 2014
In this work a sliding mode control method for a non-holonomic mobile robot using an adaptive neural network is proposed. Due to this property and restricted mobility, the trajectory tracking of this system has been one of the research topics for the ...
Carelli Albarracin, Ricardo Oscar, Rossomando, Francisco Guido, Soria, Carlos Miguel   +2 more
core  

Friction of a slider on a granular layer: Non-monotonic thickness dependence and effect of boundary conditions

, 2005
We investigate the effective friction encountered by a mass sliding on a granular layer as a function of bed thickness and boundary roughness conditions. The observed friction has minima for a small number of layers before it increases and saturates to a
Arshad Kudrolli, Ashish V. Orpe, G. D. R. MiDi, Saloome Siavoshi   +3 more
core   +1 more source

CDK11 inhibition induces cytoplasmic p21WAF1 splice variant by p53 stabilisation and SF3B1 inactivation

Molecular Oncology, EarlyView.
CDK11 inhibition stabilises the tumour suppressor p53 and triggers the production of an alternative p21WAF1 splice variant p21L, through the inactivation of the spliceosomal protein SF3B1. Unlike the canonical p21WAF1 protein, p21L is localised in the cytoplasm and has reduced cell cycle‐blocking activity.
Radovan Krejcir, Lukasz Arcimowicz, Lucia Martinkova, Vaclav Hrabal, Filip Zavadil Kokas, Tomas Henek, Martina Kucerikova, Ondrej Bonczek, Pavlina Zatloukalova, Lenka Hernychova, Philip J. Coates, Borivoj Vojtesek, David P. Lane   +12 more
wiley   +1 more source

Dry Friction in the Frenkel-Kontorova-Tomlinson Model: Dynamical Properties

, 1997
Wearless friction is investigated in a simple mechanical model called Frenkel-Kontorova-Tomlinson model. We have introduced this model in [Phys. Rev. B, Vol. 53, 7539 (1996)] where the static friction has already been considered.
Elmer, Franz-Josef, Weiss, Michael
core   +1 more source

Reduced vascular leakage correlates with breast carcinoma T regulatory cell infiltration but not with metastatic propensity

Molecular Oncology, EarlyView.
A mouse model for vascular normalization and a human breast cancer cohort were studied to understand the relationship between vascular leakage and tumor immune suppression. For this, endothelial and immune cell RNAseq, staining for vascular function, and immune cell profiling were employed.
Liqun He, Chiara Testini, Neda Hekmati, Altea Bonello, Aglaia Schiza, Emmanuel Nwadozi, Mia Phillipson, Carina Strell, Michael Welsh   +8 more
wiley   +1 more source

Observation of Hydrogen Permeation into Fresh Bearing Steel Surface by Thermal Desorption Spectroscopy

Tribology Online, 2011
This paper describes an experimental study on permeation of hydrogen into bearing steel through fresh surface with thermal desorption spectroscopy. Sliding experiments using a lapping machine with and without lubricant were conducted to generate fresh ...
Hiraku Tanimoto, Hiroyoshi Tanaka, Joichi Sugimura   +2 more
doaj   +1 more source

Micellization of Sliding Polymer Surfactants

, 2005
Following up a recent paper on grafted sliding polymer layers (Macromolecules 2005, 38, 1434-1441), we investigated the influence of the sliding degree of freedom on the self-assembly of sliding polymeric surfactants that can be obtained by complexation ...
Alexandridris P., Auzely-Velty R., Baulin V. A., Currie E. P. K., Daoud M., Duplantier B., Hamley I. W., Harada A., Hsu H.-P., Israelachvili J. N., Kegel W. K., Moutard S., Nakashima N., Nyrkova I. A., Nyrkova I. A., Ogino H., Ogino H., Rekharsky M. V., Riess G., Safran S., Sens P., van der Schoot P., Wei M., Zhang L., Zhulina E. B., Zhulina E. B.   +25 more
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Subloading-overstress friction model

Nihon Kikai Gakkai ronbunshu, 2014
The subloading-friction model proposed formerly is capable of describing the transition from the static to the kinetic friction and the recovery of static friction, which leads to the negative rate-sensitivity, i.e.
Koichi HASHIGUCHI, Takuya KUWAYAMA, Noriyuki SUZUKI, Masami UENO, Shigeru YONEMURA   +4 more
doaj   +1 more source