Mechanical & Manufacturing Eng (Scholarly Publications): Recent submissions
Now showing items 561-580 of 700
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Experimental Investigations of Coherence Based Noise Source Identification Techniques for Turbomachinery Applications - Classic and Novel Techniques (AIAA-2011-2830)
(2011)Coherence based noise source identi cation techniques utilise the ordinary linear coherence function between two signals to identify the contribution of one or more sources to the noise measured at a location of interest. ... -
Spatial Noise Source Identification of Tonal Noise in Turbomachinery Using the Coherence Function on a Modal Basis (AIAA-2011-2825)
(2011)In modern helicopter engines, the core noise generated by the combustor and turbine stages dominates the core sound radiated from the engine exhaust. Identi cation of the specific contributions of each rotor-stator stage ... -
Aeroacoustic Noise Source Identification Using Irregularly Sampled LDV Measurements Coupled with Beamforming (AIAA-2011-2719)
(2011)This paper develops a technique which relates dynamic pressure measurements taken outside the hydrodynamic eld of a low speed jet to single point, one component velocity measurements taken within the jet using a Laser ... -
Cell-matrix interactions regulate mesenchymal stem cell response to hydrostatic pressure
(2012)Both hydrostatic pressure (HP) and cell-matrix interactions have independently been shown to regulate the chondrogenic differentiation of mesenchymal stem cells (MSCs). The objective of this study was to test the hypothesis ... -
Very large fMRI study using the IMAGEN database: sensitivity - specificity and population effect modelling in relation to the underlying anatomy
(2012)In this paper we investigate the use of classical fMRI Random Effect (RFX) group statistics when analysing a very large cohort and the possible improvement brought from anatomical information. Using 1326 subjects from the ... -
LEGO MINDSTORMS AS A TEACHING TOOL IN ENGINEERING EDUCATION
(2010)The primary purpose of this paper is the development of an active-learning, constructivist coursework plan, adhering to the Conceive Design Implement Operate (CDIO) initiative, for integration with the standard second level ... -
AC Voltage Induced Electrohydrodynamic Two-Phase Convective Boiling Heat Transfer in Horizontal Annular Channels
(2012)An experimental study of alternating current (AC) induced electrohydrodynamic (EHD) flow and heat transfer augmentation for boiling inside an annular channel containing working fluid refrigerant HFC-134a has been conducted ... -
An anisotropic inelastic constitutive model to describe stress softening and permanent deformation in arterial tissue
(2012)Inelastic phenomena such as softening and unrecoverable inelastic strains induced by loading have been observed experimentally in soft tissues such as arteries. These phenomena need to be accounted for in constitutive ... -
In vivo dynamics of the internal fibrous structure in smooth adhesive pads of insects
(2012)Many insects with smooth adhesive pads can rapidly enlarge their contact area by centripetal pulls on the legs, allowing them to cope with sudden mechanical perturbations such as gusts of wind or raindrops. The short time ... -
Quantification of Subsurface Damage in a Brittle Insulating Ceramic by Three-Dimensional Focused Ion Beam Tomography
(2011)In this study, we present a fully automated method to investigate and reconstruct the three-dimensional crack structure beneath an indent in a highly insulating material. This work concentrates on issues arising from a ... -
A Liquid-Based System for CPU Cooling Implementing a Jet Array Impingement Waterblock and a Tube Array Remote Heat Exchanger
(2012)A liquid CPU cooler has been designed and tested with the aim to achieve a cooling capacity of 200 W for a surface area of 8.24 cm2, commensurate with the integrated heat spreader dimensions of an Intel? Pentium? 4 Processor. ... -
Apparent behaviour of charged and neutral materials with ellipsoidal fibre distributions and cross-validation of finite element implementations
(2012)Continuous fibre distribution models can be applied to a variety of biological tissues with both charged and neutral extracellular matrices. In particular, ellipsoidal models have been used to describe the complex material ... -
High abundance of CD271+ multipotential stromal cells (MSCs) in intramedullary cavities of long-bones
(2012)Aspiration of iliac crest bone marrow (ICBM) remains the most frequent technique used in harvesting multipotential stromal cells (MSCs) for bone regeneration. Although this tissue type is easily accessed by a surgeon, it ... -
Examination of the Local and Fluctuating Heat Transfer due to Swirling Jets Impinging upon a Heated Horizontal Surface
(2011)In the area of heat dissipation, impinging jets have been researched over many years and are a well defined method of attaining high heat transfer coefficients. Many different techniques have been looked at over past years ... -
Heat Transfer Enhancement from Bouncing Bubble Dynamics
(2011)Heat transfer enhancement resulting from the effects of two phase flow can play an important role in for convective cooling. Currently, the effect of bubble/surface interactions has received very little attention. To address ... -
Natural Convection heat transfer and fluid dynamics for a pair of vertically aligned isothermal horizontal cylinders.
(2011)This paper discusses the close interaction between local fluid dynamics and natural convection heat transfer from a pair of isothermally heated horizontal cylinders submerged in water. The presence of a second heated ... -
High-resolution hot-film measurement of surface heat flux to an impinging jet
(2011)To investigate the complex coupling between surface heat transfer and local fluid velocity in convective heat transfer, advanced techniques are required to measure the surface heat flux at high spatial and temporal resolution. ... -
A general correlation for the stagnation point Nusselt number of an axisymmetric impinging synthetic jet
(2011)Whereas the heat transfer mechanisms in steady impinging jets are well understood, the available knowledge of heat transfer to impinging synthetic jets remains inconsistent. This paper provides an objective comparison of ... -
The effect of the VOF-CSF static contact angle boundary condition on the dynamics of sliding and bouncing elliposidal bubbles.
(2011)The staticcontactangle is the only empiricism introduced in a Volume of Fluid?Continuum Surface Force (VOF?CSF) model of bubbly flow. Although it has previously been shown to have a relatively limited effect on the accuracy ... -
The fracture toughness of soft tissues
(2012)Fracture toughness is important for any material, but to date there have been few investigations of this mechanical property in soft mammalian tissues. This paper presents new data on porcine muscle tissue and a detailed ...
