Browsing School of Physics by Title
Now showing items 1555-1574 of 2103
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The Quantification of Tissue Sodium Concentration using 23Na-Magnetic Resonance Microscopy at 7 T: Probing the Acute Stroke Phase
(2010)Accurate identification of the potentially salvageable ischaemic penumbra is critical in identifying stroke patients who will benefit from thrombolysis and in designing future clinical trials of potential neuroprotectants. ... -
Quantifying Battery Rate Performance
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)The global energy demand is quickly increasing and sustainable energy solutions are needed to keep pace. Batteries have emerged as the premier energy storage solution for increasing the adoption of renewable energy sources, ... -
Quantifying the dependence of battery rate performance on electrode thickness
(2020)Simultaneous optimization of capacity and rate performance in battery electrodes would be much simplified by access to a simple equation relating rate performance to electrode thickness. Although a number of equations have ... -
Quantifying the Effect of Electronic Conductivity on the Rate Performance of Nanocomposite Battery Electrodes
(2020)While it is well-known that the electronic conductivity of electrodes has a critical impact on rate performance in batteries, this relationship has been quantified only by computer simulations. Here we investigate the ... -
Quantifying the Effect of Separator Thickness on Rate Performance in Lithium-Ion Batteries
(2022)In addition to improving parameters such as energy density and stability, it is important to maximise rate performance in lithium ion batteries. While much work has focused on rate-limiting factors associated with the ... -
QUANTIFYING THE EVOLVING MAGNETIC STRUCTURE OF ACTIVE REGIONS
(2010)The topical and controversial issue of parameterizing the magnetic structure of solar active regions has vital implications in the understanding of how these structures form, evolve, produce solar flares, and decay. This ... -
Quantifying the factors limiting rate-performance in battery electrodes
(2019)One weakness of batteries is the rapid falloff in charge-storage capacity with increasing charge/discharge rate. Rate performance is related to the timescales associated with charge/ionic motion in both electrode and ... -
Quantifying the Piezoresistive Mechanism in High-Performance Printed Graphene Strain Sensors
(2022): Printed strain sensors will be important in applications such as wearable devices, which monitor breathing and heart function. Such sensors need to combine high sensitivity and low resistance with other factors such ... -
Quantifying the Trade-Off between Absolute Capacity and Rate Performance in Battery Electrodes
(2019)Among other things, battery electrodes need to display large absolute capacities coupled with high rate performance. However, enhancing areal capacity, for example via increased electrode thickness, results in reductions ... -
Quantised conductance in a contact between metallic oxide crystals
(American Physical Society, 1998)The conductance of a point contact between two crystals of metallic (La0.75Sr0.25)MnO3 shows steps as the contact is broken. A histogram of the conductance values observed in 60 breaks exhibits a series of sharp peaks at ... -
Quantitative comparison of ultracentrifuged and diluted single walled nanotube
(2009)We have carried out a quantitative comparison of the dispersion quality for ultracentrifuged and diluted surfactant-stabilised single walled nanotube dispersions. We have characterised these dispersions at a set concentration ... -
Quantitative determination of the adsorption site of the OH radicals in the H2O/Si(100) system
(2002)Using scanned-energy mode photoelectron diffraction from the O 1s level, the local structure around the adsorbed OH species resulting from the interaction of H2O with a Si(100)(2 ? 1) has been determined, by a combination ... -
Quantitative interpretation of the transition voltages in gold-poly(phenylene) thiol-gold molecular junctions
(2013)The transition voltage of three different asymmetric Au/poly(phenylene) thiol/Au molecular junctions in which the central molecule is either benzene thiol, biphenyl thiol, or terphenyl thiol is investigated by first-principles ... -
Quantitative, Label-Free Detection of the Aggregation of alpha-Synuclein Using Microcantilever Arrays Operated in a Liquid Environment
(2012)Early detection of protein aggregation is of great importance in the field of neurodegenerative diseases. The successful detection of the aggregation of the protein ?-synuclein in a quantitative, label-free manner by ... -
Quantized conductance in a contact between metallic oxide crystals
(American Physical Society, 1998)The conductance of a point contact between two crystals of metallic (La0.75Sr0.25)MnO3 shows steps as the contact is broken. A histogram of the conductance values observed in 60 breaks exhibits a series of sharp peaks at ... -
Quantum coherence and ergotropy
(2020)Constraints on work extraction are fundamental to our operational understanding of the thermodynamics of both classical and quantum systems. In the quantum setting, finite-time control operations typically generate coherence ... -
Quantum condensation from a tailored exciton population in a microcavity
(2009)An experiment is proposed on the coherent quantum dynamics of a semiconductor microcavity containing quantum dots. Modeling the experiment using a generalized Dicke model, we show that a tailored excitation pulse can ... -
Quantum conductance of a single magnetic atom: An ab initio study
(2010)Our ab initio study explains recent puzzling experiments on the conductance of a single Co adatom depos- ited either on Cu 111 or on ferromagnetic Co islands and contacted with both magnetic and nonmagnetic electrodes N. ...
