Results 31 to 40 of about 157,324 (326)

Bioactive and chemically defined hydrogels with tunable stiffness guide cerebral organoid formation and modulate multi-omics plasticity in cerebral organoids.

Acta Biomaterialia, 2023
Organoids are an emerging technology with great potential in human disease modelling, drug development, diagnosis, tissue engineering, and regenerative medicine. Organoids as 3D-tissue culture systems have gained special attention in the past decades due
Melis Isik, Babatunde O. Okesola, C. C. Eylem, E. Koçak, E. Nemutlu, M. D’Este, Alvaro Mata, Burak Derkuş   +7 more
semanticscholar   +1 more source

Review of Industrial Robot Stiffness Identification and Modelling

Applied Sciences, 2022
Due to their high flexibility, large workspace, and high repeatability, industrial robots are widely used in roughing and semifinishing fields. However, their low machining accuracy and low stability limit further development of industrial robots in the ...
Kai Wu, Jiaquan Li, Huan Zhao, Yong Zhong   +3 more
doaj   +1 more source

A Classification of Spatial Stiffness Based on the Degree of Translational–Rotational Coupling

, 1999
Previously, we have shown that, to realize an arbitrary spatial stiffness matrix, spring components that couple the translational and rotational behavior along/about an axis are required.
Shuguang Huang, Joseph M. Schimmels
core   +2 more sources

Long-Term Effects of Pulmonary Endarterectomy on Right Ventricular Stiffness and Fibrosis in Chronic Thromboembolic Pulmonary Hypertension

Circulation: Heart Failure, 2023
BACKGROUND: Surgical removal of thromboembolic material by pulmonary endarterectomy (PEA) leads within months to the improvement of right ventricular (RV) function in the majority of patients with chronic thromboembolic pulmonary hypertension.
Harm Jan, MD Bogaard, N. Braams, MD Azar Kianzad, Msc Jessie van Wezenbeek, MD Jeroen N. Wessels, MD Samara M.A. Jansen, MD Stine Andersen, PhD Anco Boonstra, PhD Esther J. Nossent, PhD J. Tim Marcus, MD PhD Ahmed A. Bayoumy, MSc Clarissa Becher, PhD Marie-José Goumans, MD PhD Asger Andersen, MD Anton Vonk Noordegraaf, PhD Frances S. de Man, PhD Harm Jan Bogaard, MD Lilian J. Meijboom   +18 more
semanticscholar   +1 more source

EXPERIMENTAL VERIFICATION OF COUPLED STIFFNESS MATRIX IN MULTILAYER COMPOSITE STRUCTURE WITH COMPLEX CURVATURE

International Journal of Modern Physics: Conference Series, 2012
The paper presents an experimental verification for calculating coupled stiffness matrix in complex curvature composite structure. The results of the analytical procedure using Variational Asymptotic Beam Sectional Analysis also indicate that the calculation of 2-D, beam, cross-sectional properties can then be incorporated into and 1-D beam analysis ...
Jun Hwan Jang, Jae Hoon Kim
openaire   +1 more source

Optimal design of an aeroelastic wing structure with seamless control surfaces [PDF]

, 2009
This article presents an investigation into the concept and optimal design of a lightweight seamless aeroelastic wing (SAW) structure for small air vehicles.
M Perera, Guo, Shijun J., S Guo, Perera, Melanie   +3 more
core   +1 more source

A Variable Stiffness Analysis Model for Large Complex Thin-Walled Guide Rail

MATEC Web of Conferences, 2016
Large complex thin-walled guide rail has complicated structure and no uniform low rigidity. The traditional cutting simulations are time consuming due to huge computation especially in large workpiece.
Wang Xiaolong, Wang Aimin, Lv Yanpeng
doaj   +1 more source

Substrate Stiffness Influences Structural and Functional Remodeling in Induced Pluripotent Stem Cell-Derived Cardiomyocytes

Frontiers in Physiology, 2021
Novel treatment strategies for cardiac tissue regeneration are heading for the use of engineered cardiac tissue made from induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs).
Arlene Körner, Arlene Körner, Matias Mosqueira, Markus Hecker, Markus Hecker, Nina D. Ullrich, Nina D. Ullrich   +6 more
doaj   +1 more source

Vibration and buckling of thin-walled composite I-beams with arbitrary lay-ups under axial loads and end moments [PDF]

, 2013
A finite element model with seven degrees of freedom per node is developed to study vibration and buckling of thin-walled composite I-beams with arbitrary lay-ups under constant axial loads and equal end moments.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Effect of coupling agents on properties of vegetable fiber polymeric composites: review

Polímeros, 2023
Using natural fibers in composites presents a wide range of applications, from furniture to airplanes. In polymeric composite, the use of fiber is to boost strength and stiffness.
Dielen Marin, L. Chiarello, V. Wiggers, A. D. Oliveira, V. Botton   +4 more
semanticscholar   +1 more source