Computational analysis Dotaz Zobrazit nápovědu

Přesná shoda Sémantické

The purpose of the present study was to describe the structural density and geometry of the bone, as well as its sensitivity to the resolution of finite element discretisation. The study introduces a novel way to validate biomechanical model of the bone by experimental modal analysis. The structural density and geometry of the model was obtained from a composite bone. A detailed investigation of the weight dependence of the bone on the mesh resolution was performed to obtain the best match with the real weight of the tested bone. The computational model was compared with the experimental results obtained from the modal analysis. The overall changes of the modal properties and bone weight in the model caused by different mesh resolutions and order of approximation were below 10%, despite the bone was modelled with simple isotropic material properties. The experimental modal analysis shows a great potential to be a robust verification tool of computational biomechanical models because it provides boundary conditions-free results. The sensitivity analysis revealed that the linear approximation of the density field is not suitable for the modelling of the modal response of composite bone.

MeSH
analýza metodou konečných prvků MeSH
biomechanika MeSH
lidé MeSH
lineární modely MeSH
mechanický stres MeSH
pánevní kosti anatomie a histologie diagnostické zobrazování MeSH
počítačová rentgenová tomografie MeSH
počítačová simulace * MeSH
reprodukovatelnost výsledků MeSH
velikost orgánu MeSH
Check Tag
lidé MeSH
Publikační typ
časopisecké články MeSH
validační studie MeSH

Časopis

Medical image analysis

Oxford : Elsevier, 1996-

elektronický časopis

Konspekt
Patologie. Klinická medicína
NLK Obory
radiologie, nukleární medicína a zobrazovací metody
radiologie, nukleární medicína a zobrazovací metody
radiologie, nukleární medicína a zobrazovací metody
NLK Publikační typ
elektronické časopisy

Článek

Computational Analysis of Protein Tunnels and Channels

... Here we present a detailed computational protocol employing the CAVER software that is applicable for ...

Methods in molecular biology. 2018 ; 1685 (-) : 25-42.

Methods Mol Biol
ISSN 1940-6029
Medvik
Zdroj

Protein tunnels connecting the functional buried cavities with bulk solvent and protein channels, enabling the transport through biological membranes, represent the structural features that govern the exchange rates of ligands, ions, and water solvent. Tunnels and channels are present in a vast number of known proteins and provide control over their function. Modification of these structural features by protein engineering frequently provides proteins with improved properties. Here we present a detailed computational protocol employing the CAVER software that is applicable for: (1) the analysis of tunnels and channels in protein structures, and (2) the selection of hot-spot residues in tunnels or channels that can be mutagenized for improved activity, specificity, enantioselectivity, or stability.