Browsing School of Engineering by Sponsor "Irish Research Council for Science and Engineering Technology (IRCSET)"
Now showing items 1-20 of 66
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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 ... -
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 ... -
Characterisation of thin film silicon films deposited by plasma enhanced chemical vapour deposition at 162MHz, using a large area, scalable, multi-tile-electrode plasma source
(2011)Large area (600 ? 720 mm) depositions of hydrogenated microcrystalline silicon (?c-Si:H) have been achieved at high deposition rates using a scalable, multi-tile electrode topology. Depositions have shown local results of ... -
Characterization of Rapid Melt Growth (RMG) Process for High Quality Thin Film Germanium on Insulator
(2012)Germanium is one of the most promising materials for high performance infra-red photovoltaic devices. High quality singlecrystal germanium on insulator structures can be produced by a Rapid Melt Growth process. Experiments ... -
Chirality of an achiral bent-core nematic mesogen observed in planar and homeotropic cells under certain boundary conditions
(2012)It is shown that planar and homeotropic cells under certain boundary conditions containing an achiral bent-core C5 liquid crystalline material show chiral domains of opposite handedness. However such domains are not seen ... -
Combining BMP-6, TGF-β3 and hydrostatic pressure stimulation enhances the functional development of cartilage tissues engineered using human infrapatellar fat pad derived stem cells
(2013)The objective of this study was to identify a combination of growth factors that could be used with hydrostatic pressure (HP) stimulation to enhance the functional development of cartilaginous grafts engineered using human ... -
Composition and strain in thin Si1-xGex virtual substrates measured by micro-Raman spectroscopy and X-ray diffraction
(2011)Micro-Raman spectroscopy was employed for the determination of the germanium content, x and strain, , in ultrathin SiGe virtual substrates grown directly on Si by molecular beam epitaxy. The growth of highly relaxed ... -
The Composition of Engineered Cartilage at the Time of Implantation Determines the Likelihood of Regenerating Tissue with a Normal Collagen Architecture.
(2013)The biomechanical functionality of articular cartilage is derived from both its biochemical composition and the architecture of the collagen network. Failure to replicate this normal Benninghoff architecture in regenerating ... -
Degeneracy lifting due to thermal fluctuations around the frustration point between anticlinic antiferroelectric SmCA* and synclinic ferroelectric SmC*
(2013)In the binary mixture phase diagram of MC881 and MC452, the borderline between anticlinic antiferroelectric SmC?A and synclinic ferroelectric SmC? becomes apparently parallel to the temperature ordinate axis at the critical ... -
Dependence of the molecular orientational states on the surface conditions for the "V-shaped switching" in a ferroelectriclike liquid crystal sample
(2001)The three-component mixture showing the V-shaped switching in a rubbing cell is investigated using a temperature gradient cell (TGC) where the epitaxial method of alignment, but without an alignment layer, is used. The ... -
Design of three-component one-dimensional photonic crystals for alteration of optical contrast and omni-directional reflection
(2010)In this study, three-component One-Dimensional (1D) Photonic Crystal (PC) structures were investigated by modeling them as two-component PCs with an additional regular layer. The Gap Map approach and the Transfer Matrix ... -
Design, fabrication and optical characterization of Fabry-Pérot tunable resonator based on microstructured Si and liquid crystal
(2010)The results of a simulation of the optical properties of a silicon Fabry-Perot resonator (with liquid crystal filler in the cavity), operated on the shift of the interference bands in the infrared range are presented. The ... -
Design, fabrication and Optical Characterization of Multi-Component Photonic Crystals for Integrated Si Microphotonics
(2011)This paper reports on investigation and possible applications of the optical elements based on one-dimensional (1D) multi-component photonic crystal (PCs). The gap map approach and the transfer matrix method were used in ... -
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 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 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 ... -
Electrically tunable Fabry-Pérot resonator based on microstrcutured Si containing liquid crystal
(2012)We have built Fabry-Perot resonators based on mi-crostructured silicon and a liquid crystal. The devices exhibit tuning of the resonance peaks over a wide range, with relative spectral shifts of up to ??/? = 10%. In order ... -
Enhancement of photoluminescence signal from ultrathin layers with silicon nanocrystals
(2012)Using the model of oscillating dipoles, we simulated the photoluminescence intensity of a triple-layered structure where the silicon nanocrystals layer was enclosed by buffer and capping silicon dioxide layers. It was ... -
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 ... -
Fabrication of one-dimensional photonic crystals by photoelectrochemical etching of silicon
(2010)The conditions of formation of deep periodic trenches by photoelectrochemical etching of n-Si (100) with linear seeds on the surface are analyzed. Criteria for the proper choice of the period of seed grooves and the etching ...