Results 31 to 40 of about 1,985,960 (297)

Absence of HDAC3 by Matrix Stiffness Promotes Chromatin Remodeling and Fibroblast Activation in Idiopathic Pulmonary Fibrosis

open access: yesCells, 2023
Idiopathic pulmonary fibrosis (IPF) is a chronic and fatal disease characterized by progressive and irreversible lung scarring associated with persistent activation of fibroblasts.
Fernanda Toscano-Marquez   +3 more
doaj   +1 more source

Time-Varying Total Stiffness Matrix of a Rigid Machine Spindle-Angular Contact Ball Bearings Assembly: Theory and Analytical/Experimental Verifications

open access: yesShock and Vibration, 2011
A lagrangian formulation is presented for the total dynamic stiffness and damping matrices of a rigid rotor carrying noncentral rigid disk and supported on angular contact ball bearings (ACBBs).
Fawzi M.A. El-Saeidy
doaj   +1 more source

A new methodology to calculate the equivalent stiffness matrix of the suspension structure with flexible linkages

open access: yesAdvances in Mechanical Engineering, 2017
The purpose of this work is to present a methodology for calculating the equivalent stiffness matrix of the wheel center of the vehicle suspension. For a suspension, the stiffness matrix of the wheel center, which is effected by the bushings and flexible
Guo-feng Yao, Jianhong Hou, Pinbin Zhao
doaj   +1 more source

ANALISIS NONLINIER GEOMETRI STRUKTUR FRAME-TRUSS 3D DENGAN METODE ELEMEN HINGGA

open access: yesTeknologi dan Kejuruan, 2012
: Non-linear  analysis program for 3D structural geometry has not yet been used for analyzing the frame-truss structure. It needs more accurate and efficient program in analyzing the 3D structural geometry.
Karyadi Karyadi
doaj   +1 more source

The Importance of Mechanical Forces for in vitro Endothelial Cell Biology

open access: yesFrontiers in Physiology, 2020
Blood and lymphatic vessels are lined by endothelial cells which constantly interact with their luminal and abluminal extracellular environments. These interactions confer physical forces on the endothelium, such as shear stress, stretch and stiffness ...
Emma Gordon, Lilian Schimmel, Maike Frye
doaj   +1 more source

Assessing the Role of Longitudinal Variability of Vertical Track Stiffness in the Long-Term Deterioration [PDF]

open access: yes, 2016
The performance of the railway system in terms of dynamic loading is depending mainly on the track support conditions. Usually, the track stiffness is used as the main parameter to describe the support conditions and is defined as the ratio of the load ...
Ramos Andrade, Antonio   +2 more
core   +3 more sources

Paradigms of endothelial stiffening in cardiovascular disease and vascular aging

open access: yesFrontiers in Physiology, 2023
Endothelial cells, the inner lining of the blood vessels, are well-known to play a critical role in vascular function, while endothelial dysfunction due to different cardiovascular risk factors or accumulation of disruptive mechanisms that arise with ...
Victor M. Aguilar   +5 more
doaj   +1 more source

Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension [PDF]

open access: yes, 2012
This study investigates the origin of the strain rate effect on the mechanical behavior of a discontinuous glass fiber reinforced ethylene–propylene copolymer (EPC) matrix composite.
FITOUSSI, Joseph   +2 more
core   +1 more source

Etiology of Oral Potentially Malignant Disorders and Squamous Cell Carcinoma Based on Cellular Stress Regulation and Matrix Stiffness

open access: yesFrontiers in Bioscience-Landmark, 2023
The oral cavity serves as the initial segment of the digestive system and is responsible for both nutritional supplementation and the mechanical breakdown of food.
Toshihiro Hasegawa   +4 more
doaj   +1 more source

Protein Phosphatase 2A Mediates YAP Activation in Endothelial Cells Upon VEGF Stimulation and Matrix Stiffness

open access: yesFrontiers in Cell and Developmental Biology, 2021
Angiogenesis is an essential process during development. Abnormal angiogenesis also contributes to many disease conditions such as tumor and retinal diseases.
Xiao Jiang   +12 more
doaj   +1 more source

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