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Now showing items 451-460 of 475
Improving the finite element model accuracy of tissue engineered scaffolds produced by selective laser sintering
(Springer Verlag, 2015-01-13)
In bone tissue engineering, both geometrical and mechanical properties of a scaffold play a major part in the success of the treatment. The mechanical stresses and strains that act on cells on a scaffold in a physiological ...
Comparing coronary stent material performance on a common geometric platform through simulated bench testing
(Elsevier ScienceDirect, 2012-03-02)
Absorbable metallic stents (AMSs) are a newly emerging cardiovascular technology which has the potential to eliminate long-term patient health risks associated with conventional permanent stents. AMSs developed to date ...
Development of life assessment procedures for power plant headers operated under flexible loading scenarios
(Elsevier ScienceDirect, 2013-12-22)
A finite element methodology for thermo-mechanical fatigue analysis of a subcritical power plant outlet header under realistic loading conditions is presented. The methodology consists of (i) a transient heat transfer ...
Investigation of histology radius for dielectric characterisation of heterogeneous materials
(Institute of Electrical and Electronics Engineers, 2018-07-13)
Knowledge of the dielectric properties of biological tissues is fundamental in the design of novel electromagnetic-based medical devices. Tissue dielectric properties are typically measured using the open-ended coaxial ...
Micro-scale testing and micromechanical modelling for high cycle fatigue for CoCr stent material
(Elsevier ScienceDirect, 2015-02-20)
This paper presents a framework of experimental testing and crystal plasticity micromechanics for high cycle fatigue (HCF) of micro-scale L605 CoCr stent material. Micro-scale specimens, representative of stent struts, are ...
A physical corrosion model for bioabsorbable metal stents
(2014)
Absorbable metal stents (AMSs) are an emerging technology in the treatment of heart disease. Computational modelling of AMS performance will facilitate the development of this technology. In this study a physical corrosion ...
Effects of standard coagulant agents on the dielectric properties of fresh human blood
(Institute of Electrical and Electronics Engineers, 2017-11-27)
In this paper, the effects of coagulation and temperature on the dielectric properties of human blood are investigated over the frequency range of 400 MHz - 20 GHz using freshly extracted blood samples. The dielectric ...
Iris liveness detection for next generation smartphones
(Institute of Electrical and Electronics Engineers, 2016-07-19)
This paper presents a novel liveness detection method that exploits the acquisition workflow for iris biometrics on smartphones using a hybrid visible (RGB)/near infra-red (NIR) sensor. These devices are able to capture ...
Modelling the sensing radius of a coaxial probe for dielectric characterisation of biological tissues
(Institute of Electrical and Electronics Engineers, 2018-08-22)
The open-ended coaxial probe is the most common measurement tool used to dielectrically characterize biological tissues. Most healthy and malignant biological tissues are macroscopically heterogeneous, with the exception ...
Image-based classification of bladder state using electrical impedance tomography
(IOP Publishing, 2018-12-03)
Objective: In this study, we examine the potential of using machine learning classification to determine the bladder state ( not full , full ) with electrical impedance tomography (EIT) images of the pelvic region. Accurate ...