Browsing by Title
Now showing items 4941-4960 of 14646
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Experimental and computational investigation of the impact of distorted stent expansion on the performance of transcatheter aortic valve replacements
(2014-12-22)Patients with calcific aortic valve stenosis present with calcium deposits on the aortic valve, which can result in non-circular and distorted expansion of self-expanding Transcatheter Aortic Valve Replacements. The effect ... -
An Experimental and Computational Investigation of the Inelastic Behaviour of Trabecular Bone
(2012-09-28)Achieving sufficient initial implant stability is of paramount importance for orthopaedic device longevity. In order to improve the design of orthopaedic devices it is essential to gain a better understanding of the ... -
An experimental and computational investigation of the mechanics of degradation in polymer bioresorbable scaffolds
(NUI Galway, 2023-10-03)Drug-eluting stents (DES) have established themselves as the gold-standard in treating arterial blockages, with over 1.3 million stent procedures carried out across Europe in coronary vessels alone. However, these permanent ... -
An experimental and computational investigation of the post-yield behaviour of trabecular bone during vertebral device subsidence
(Springer-Verlag, 2013)Interbody fusion device subsidence has been reported clinically. An enhanced understanding of the mechanical behaviour of the surrounding bone would allow for accurate predictions of vertebral subsidence. The multiaxial ... -
Experimental and computational investigation of the role of stress fiber contractility in the resistance of osteoblasts to compression
(2013)The mechanical behavior of the actin cytoskeleton has previously been investigated using both experimental and computational techniques. However, these investigations have not elucidated the role the cytoskeleton plays in ... -
An experimental and computational investigation on the biomechanics of polymer-covered self-expanding stents
(NUI Galway, 2021-07-09)Nitinol self-expanding stents are commonly used to treat peripheral artery disease. However, the femoropopliteal artery presents a challenging environment for stent placement, where large arterial deformations occur many ... -
An experimental and detailed kinetic modeling study of the pyrolysis and oxidation of allene and propyne over a wide range of conditions
(Elsevier, 2021-07-27)Allene and propyne are important intermediates in the pyrolysis and oxidation of higher hydrocarbon fuels, and they are also a major source of propargyl radical formation, which can recombine into different C 6 H 6 isomers ... -
Experimental and finite element investigations of the serviceability behaviour of CLT floors
(NUI Galway, 2020-02-06)Global environmental concerns with regard to sustaining our growing population is prompting the building community worldwide to increase urban density, while using optimised and sustainable resources. The traditional ... -
Experimental and kinetic modeling study of 2-methyl-2-butene: allylic hydrocarbon kinetics
(American Chemical Society, 2015-03-20)Two experimental studies have been carried out on the oxidation of 2-methyl-2-butene, one measuring ignition delay times behind reflected shock waves in a stainless steel shock tube, and the other measuring fuel, intermediate, ... -
Experimental and kinetic modeling study of 3-Methyl-2-butenol (Prenol) oxidation
(American Chemical Society, 2021-08-19)Longer chain alcohols with 4–5 carbon atoms are attractive alternative fuels as they can be derived from biological sources and since their combustion leads to lower exhaust gas levels of NOx and soot compared to commercial ... -
An experimental and kinetic modeling study of cyclopentane and dimethyl ether blends
(Elsevier, 2020-11-13)Cyclopentane is a suitable naphthene, or cycloalkane, in a palette for multi-component gasoline surro- gate fuels due to its presence in market fuels and its relevance to alkyl substituted cyclopentanes also present. ... -
An experimental and kinetic modeling study of n-hexane oxidation
(Elsevier, 2015-09-11)Ignition delay times for n-hexane oxidation have been measured in a rapid compression machine (RCM) at stoichiometric conditions and at 15 bar. Due to the high reactivity of n-hexane and non-ideal experimental effects ... -
An experimental and kinetic modeling study of the auto-ignition of natural gas blends containing C1–C7 alkanes
(Elsevier, 2020-07-16)Ignition delay time measurements for multi-component natural gas mixtures were carried out using a rapid compression machine at conditions relevant to gas turbine operation, at equivalence ratios of 0.5–2.0 in ‘air’ in the ... -
An experimental and kinetic modeling study of the ignition delay characteristics of binary blends of ethane/propane and ethylene/propane in multiple shock tubes and rapid compression machines over a wide range of temperature, pressure, equivalence ratio, and dilution
(Elsevier, 2021-03-02)In this work, the ignition delay time characteristics of C2 – C3 binary blends of gaseous hydrocarbons including ethylene/propane and ethane/propane are studied over a wide range of temperatures (750 – 2000 K), pressures ... -
An experimental and kinetic modeling study of the oxidation of hexane isomers: Developing consistent reaction rate rules for alkanes
(Elsevier, 2019-05-09)Alkanes are key components in gasoline, jet and diesel fuels and considerably influence the combustion behavior of these fuels because of their wide range of reactivity. An improved understanding of their combustion behavior ... -
An experimental and kinetic modeling study of the pyrolysis and oxidation of n-C-3-C-5 aldehydes in shock tubes
(Elsevier ScienceDirect, 2015-08-24)Due to the increasing interest in the use of biofuels for energy production, it is of great importance to better understand the combustion and thermal decomposition characteristics of species such as aldehydes. These are ... -
Experimental and kinetic modeling study of the shock tube ignition of a large oxygenated fuel: tri-propylene glycol mono-methyl ether
(Elsevier, 2015-05-13)Tri-propylene glycol monomethyl ether (TPGME) is an important oxygenated fuel additive that can be used to reduce soot in diesel engines. However, a validated chemical kinetic model that incorporates the low- to high-temperature ... -
An experimental and modeling study of diethyl carbonate oxidation
(Elsevier ScienceDirect, 2015-01-19)Diethyl carbonate (DEC) is an attractive biofuel that can be used to displace petroleum-derived diesel fuel, thereby reducing CO2 and particulate emissions from diesel engines. A better understanding of DEC combustion ... -
An experimental and modeling study of nitromethane + O2 + N2 ignition in a shock tube
(Elsevier, 2016-09-09)The ignition of nitromethane/O-2/N-2 mixtures was investigated via shock tube experiments in the temperature range 947-1333 K at reflected shock pressures near 8, 16 and 32 atm. The ignition was recorded as the intensity ... -
An experimental and modeling study of propene oxidation. Part 1: Speciation measurements in jet-stirred and flow reactors
(Elsevier ScienceDirect, 2014-06-20)Propene is a significant component of Liquefied Petroleum Gas (LPG) and an intermediate in the combustion of higher order hydrocarbons. To better understand the combustion characteristics of propene, this study and its ...