Browsing College of Science by Title
Now showing items 897-916 of 976
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Torsion instability of soft solid cylinders
(Oxford Open Journals, 2013-12-10)The application of pure torsion to a long and thin cylindrical rod is known to provoke a twisting instability, evolving from an initial kink to a knot. In the torsional parallel-plate rheometry of stubby cylinders, the ... -
Torus Chiral n-Point Functions for Free Boson and Lattice Vertex Operator Algebras
(2002)We obtain explicit expressions for all genus one chiral n-point functions for free bosonic and lattice vertex operator algebras. We also consider the elliptic properties of these functions. -
Torus n-Point Functions for $\mathbb{R}$-graded Vertex Operator Superalgebras and Continuous Fermion Orbifolds
(2007)We consider genus one n-point functions for a vertex operator superalgebra with a real grading. We compute all n-point functions for rank one and rank two fermion vertex operator superalgebras. In the rank two fermion case, ... -
Toward a predictive assessment of stab-penetration forces
(Lippincott, Williams & Wilkins, 2015-09)Collaborative research between the disciplines of forensic pathology and biomechanics was undertaken to investigate the hyperelastic properties of human skin, to determine the force required for sharp instrument penetration ... -
Toward the development of a fundamentally based chemical model for cyclopentanone: high-pressure-limit rate constants for H atom abstraction and fuel radical decomposition
(American Chemical Society, 2016-08-25)Theoretical aspects of the development of a chemical kinetic model for the pyrolysis and combustion of a cyclic ketone, cyclopentanone, are considered. Calculated thermodynamic and kinetic data are presented for the first ... -
Towards a kinetic understanding of the NOx promoting-effect on ignition of coalbed methane: A case study of methane/nitrogen dioxide mixtures
(Elsevier, 2016-05-03)Nitrogen dioxide (NO2) is an important impurity in coal-bed methane (CBM) and a dominant component of NOx pollution in practical engines. Its promoting effect on methane ignition has been studied in the current experimental ... -
Towards the synthesis of high boron content polyanionic multicluster macromolecules
(American Chemical Society, 2009-07-31)Reported are further consequences of the dioxane ring-opening in [3,3’-Co(8-(CH2CH2O)2-1,2-C2B9H10)(1’,2’-C2B9H11)] [1] with twelve-vertex carborane mono- and dianions. The removal of one BH vertex from the 1,2-carborane ... -
Towards understanding the role of viscoelasticity in microstructural buckling in soft particulate composites
(Elsevier, 2023)This work investigates the interplay between viscoelasticity and instabilities in soft particulate composites undergoing finite deformation. The composite is subjected to in-plane deformation at various constant strain ... -
Tracking potential sources of peak ozone concentrations in the upper troposphere over the Arabian Gulf region.
(Elsevier (Science Direct), 2014-11-13)In August 2013, the Qatar Environment and Energy Research Institute (QEERI), was the first to launch temporally highly resolved ozonesondes in the Middle East region. The data from 20 launches consistently show changes in ... -
Transverse waves in nonlinearly elastic solids and the Milne-Pinney equation
(SAGE Journals, 2011-08-17)We establish a connection between the general equations of nonlinear elastodynamics and the nonlinear ordinary differential equation of Pinney [Proc Amer Math Soc 1950; 1: 681]. As a starting point, we use the exact ... -
Tuning protein frameworks via auxiliary supramolecular interactions
(American Chemical Society, 2019-09-06)Protein crystals with their precise, periodic array of functional building blocks have potential applications in biomaterials, sensing, and catalysis. This paper describes how a highly porous crystalline framework of a ... -
Tuning the pull-in instability of soft dielectric elastomers through loading protocols
(Elsevier, 2019-03-22)Pull-in (or electro-mechanical) instability occurs when a drastic decrease in the thickness of a dielectric elastomer results in electrical breakdown, which limits the applications of dielectric devices. Here we derive the ... -
Twisted molecular magnets
(RSC, 2012-09-05)The use of derivatised salicylaldoximes in manganese chemistry has led to the synthesis of a family of approximately fifty hexanuclear ([MnIII6]) and thirty trinuclear ([MnIII3]) Single-Molecule Magnets (SMMs). Deliberate, ... -
A two-weight scheme for a time-dependent advection-diffusion problem
(2011)We consider a family of two-weight finite difference schemes for a time-dependent advection-diffusion problem. For a given uniform grid-spacing in time and space, and for a fixed value of advection and diffusion parameters, ... -
Ultra-sensitive label free imaging below the resolution limit
(SPIE (Society of Photo-optical Instrumentation Engineers) Digital Library, 2019-02-02)Almost all known nanoscopy methods rely upon the contrast created by fluorescent labels attached to the object of interest. This causes limitations on their applicability to in vivo imaging. A new label-free spectral ... -
An ultrasonic method to measure stress without calibration: The angled shear wave identity.
(Acoustical Society of America, 2020-12-03)Measuring stress levels in loaded structures is crucial to assess and monitor structure health and to predict the length of remaining structural life. Many ultrasonic methods are able to accurately predict in-plane stresses ... -
Uncertainty quantification of a newly optimized methanol and formaldehyde combustion mechanism
(Elsevier, 2017-09-27)A detailed reaction mechanism for methanol combustion that is capable of describing ignition, flame propagation and species concentration profiles with high accuracy has been developed. Starting from a modified version of ... -
Understanding the antagonistic effect of methanol as a component in surrogate fuel models: A case study of methanol/n-heptane mixtures
(Elsevier, 2021-01-19)Methanol is a widely used engine fuel, blend component, and additive. However, no systematic auto-ignition data or laminar flame speed measurements are available for kinetic studies of the effect of methanol as a blending ... -
Understanding the changes of cone reflectance in adaptive optics flood illumination retinal images over three years
(Optical Society of America, 2016)Although there is increasing interest in the investigation of cone reflectance variability, little is understood about its characteristics over long time scales. Cone detection and its automation is now becoming a fundamental ...