Mechanical & Manufacturing Eng (Scholarly Publications): Recent submissions
Now showing items 581-600 of 700
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Biomechanics of the stick insect antenna: Damping properties and structural correlates of the cuticle
(2011)The antenna of the Indian stick insect Carausius morosus is a highly specialized near-range sensory probe used to actively sample tactile cues about location, distance or shape of external objects in real time. The length ... -
Computer simulating a clinical trial of a load-bearing implant: example of an intramedullary prosthesis
(2011)Computational modelling is becoming ever more important for obtaining regulatory approval for new medical devices. An accepted approach is to infer performance in a population from an analysis conducted in an idealized or ... -
Composition-function relations of cartilaginous tissues engineered from chondrocytes and mesenchymal stem cells isolated from bone marrow and infrapatellar fat pad
(2011)The objective of this study was to determine the functional properties of cartilaginous tissues generated by porcine MSCs isolated from different tissue sources, and to compare these properties to those derived from ... -
Defining the impaction frequency and threshold force required for femoral impaction grafting in revision hip arthroplasty. A human cadaveric mechanical study.
(2011)BACKGROUND AND PURPOSE: The two most common complications of femoral impaction bone grafting are femoral fracture and massive implant subsidence. We investigated fracture forces and implant subsidence rates in embalmed ... -
Inferred Threat and Safety: Symbolic Generalization of Human Avoidance Learning
(2011)Symbolic generalization of avoidance may underlie the etiology and maintenance of anxiety disorders. The aim of the present study was to demonstrate inferred threat-avoidance and safety (non-avoidance) behaviours that occur ... -
The effect of wheel eccentricity and run-out on grinding forces, waviness, wheel wear and chatter
(2011)The effect of grinding-wheel eccentricity on grinding forces, wheel wear and final waviness height was studied. Eccentricity was evident in force oscillations and acceleration and audio measurements. A model was developed ... -
A role for the primary cilium in paracrine signaling between mechanically stimulated osteocytes and mesenchymal stem cells.
(2011)Bone turnover is a mechanically regulated process, coordinated in part by the network of mechanosensitive osteocytes residing within the tissue. The recruitment and bone forming activity of the mesenchymal derived osteoblast ... -
The effect of cyclic hydrostatic pressure on the functional development of cartilaginous tissues engineered using bone marrow derived mesenchymal stem cells
(2011)Mechanical signals can play a key role in regulating the chondrogenic differentiation of Mesenchymal Stem Cells (MSCs). The objective of this study was to determine if the long-term application of cyclic hydrostatic pressure ... -
The Scissors Model of Microcrack Detection in Bone: Work in Progress
(2010)We have proposed a new model for microcrack detection by osteocytes in bone. According to this model, cell signalling is initiated by the cutting of cellular processes which span the crack. We show that shear displacements ... -
Synthesis and characterization of biomimetic hydroxyapatite/sepiolite nanocomposites
(Royal Society of Chemistry, 2011)Natural fibrous sepiolite with a high surface area, negative surface charge and porous structure is promising for hydroxyapatite (HAp) mineralization since the clay is naturally abundant and biocompatible. In this paper, ... -
Notch and Mean Stress Effect in Fatigue as Phenomena of Elasto-Plastic Inherent Multiaxiality
(2011)The present paper summarises an attempt of estimating fatigue lifetime of notched metallic materials by directly accounting for the degree of multiaxiality of the local elasto-plastic stress/strain fields acting on the ... -
The Theory of Critical Distances to estimate lifetime of notched components subjected to variable amplitude uniaxial fatigue loading
(Elsevier, 2011)The present paper summarises an attempt of reformulating the so-called Theory of Critical Distances (TCD) to make it suitable for estimating finite life of notched components subjected to variable amplitude (VA) uniaxial ... -
The Variable Radius Notch: Two New Methods for Reducing Stress Concentration
(2011)Geometrical features such as notches and corners give rise to stress concentrations. In industrial components these features are often designed with a constant radius, however it is already known that a more complex shape, ... -
What we can't learn from nature
(2011)When attempting to design bio-inspired materials and structures, it is important to remember that Nature employs some strategies for optimising the use of load-bearing materials which we, as engineers, cannot replicate. A ... -
Electric field effects during nucleate boiling from an artificial nucleation site
(2011)An experimental study of saturated pool boiling from a single artificial nucleation site on a polished copper surface has been performed. Isolated bubbles grow and depart from the artificial cavity and the bubble dynamics ... -
Mechanical Influences on Morphogenesis of the Knee Joint Revealed through Morphological, Molecular and Computational Analysis of Immobilised Embryos.
(University of Edinburgh (datashare), 2011)Very little is known about the regulation of morphogenesis in synovial joints. Mechanical forces generated from muscle contractions are required for normal development of several aspects of normal skeletogenesis. Here we ... -
Applications of the Theory of Critical Distances in Failure Analysis
(Elsevier, 2010)The Theory of Critical Distances (TCD) is the name which I use to describe a group of methods employed for the prediction of failure in cases where stress concentrations are present and where the failure mode involves ... -
Heat pipe-based radiator for low grade geothermal energy conversion in domestic space heating
(2011)A severe technical drawback of geothermal heat pumps (GHPs) is the fact that the nominal operating temperature available for domestic space heating is typically in the region of 50?C. This is 25?C to 40?C less than ... -
Broadband Noise Source Location in Turbomachinery using a Conditioned Spectral Analysis Technique Coupled with Modal Decomposition
(2010)Methods are presented for the identification, viz., relative magnitude and spatial origin, of broadband and tonal noise sources within aeroengines. The methods require dynamic pressure measurements from sensors located ... -
Numerical Evaluation of Fatigue Strength on Mechanical Notched Components under Multiaxial Loadings
(Elsevier, 2011)This paper deals with the fatigue behaviour of complex, three-dimensional, stress concentrations under multiaxial loadings. Starting from the stress field obtained by means of a linear elastic analysis and taking advantage ...
