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8421
Design, analysis and implementation of bulk-synchronous parallel algorithms, data structures and techniques
Published 1998“…The methods considered in this thesis - both theoretically and experimentally - embody deterministic and randomized techniques for the efficient realization of fundamental algorithms (broadcasting, computing parallel-prefixes, load-balancing, list-contracting, merging, sorting, integer-sorting, selecting, searching and hashing), data structures (heaps, search trees and hash tables) and applications (computational geometry, parallel model simulations and structured query language primitives).…”
Thesis -
8422
Synthesis and conformational analysis of fluorinated pyrrolidines
Published 2012“…Finally, we investigated the level of diastereocontrol displayed by these cyclisations as a function of the E/Z geometry of the starting aminated allylsilane. </p> <p><em>Conformational analysis</em></p> <p>Moreover the 3-fluoropyrrolidines obtained via iodoamination served to investigate the stereoelectronic influence of the fluorine gauche effect on ring conformations. …”
Thesis -
8423
Enceladus plume structure and time variability: comparison of Cassini observations
Published 2017“…This complex spatial variability and dynamics may result from time-variable tidal stress fields interacting with subsurface fissure geometry and tortuosity beyond detectability, including changing gas pathways to the surface, and fluid flow and boiling in response evolving lithostatic stress conditions. …”
Journal article -
8424
Conjectures on counting associative 3-folds in $G_2$-manifolds
Published 2018“…Several areas of Symplectic Geometry – Gromov–Witten theory, Quantum Cohomology, Lagrangian Floer cohomology, Fukaya categories – are built using ‘counts’ of moduli spaces of J-holomorphic curves in Y , but give an answer depending only on the symplectic manifold (Y,ω), not on the (almost) complex structure J. …”
Book section -
8425
Single channel Kondo physics in triple quantum dots
Published 2012“…<p>In this thesis we investigate a system of three tunnel-coupled quantum dots, arranged in a triangular geometry and attached to a single metallic conduction band, using both analytic and semi-analytic methods and the numerical renormalisation group technique. …”
Thesis -
8426
Black hole jets, accretion discs and dark energy
Published 2013“…I develop an inhomogeneous jet model with a magnetically dominated parabolic accelerating base, transitioning to a slowly decelerating conical jet, with a geometry set by radio observations of M87.</p> <p>This model is able to reproduce the simultaneous multiwavelength spectra of all 38 Fermi blazars with redshifts in unprecendented detail across all wavelengths. …”
Thesis -
8427
Three-dimensional device structures for photovoltaic applications
Published 2013“…Their power-conversion efficiencies, below 13% and 9% respectively, still limit the economic viability of these technologies. The geometry and optical properties of photonic crystals can be used to improve the absorption and charge collection efficiencies of these devices. …”
Thesis -
8428
A microfluidic platform reveals differential response of regulatory T cells to micropatterned costimulation arrays.
Published 2015“…Specifically, the ability of cells to respond to the microscale geometry of TCR/CD3 and CD28 engagement is made possible using a magnetic-microfluidic device that overcomes limitations in imaging efficiency associated with conventional microscopy equipment. …”
Journal article -
8429
Residual stress analysis in shot peened and fretting fatigued samples by the eigenstrain method
Published 2006“…Fretting fatigue loading was carried out in hte pad-on-flat geometry using the Oxford in-line fretting rig. Flat-and-rounded pad shape was used to introduce the contact tractions and internal stress fields typical of the target application in aeroengine design. …”
Journal article -
8430
Bordism categories and orientations of gauge theory moduli spaces
Published 2023“…<p>This is the second paper of a series that develops a bordism-theoretic point of view on orientations in enumerative geometry. The first paper is arXiv:2312.06818. This paper focuses on those applications to gauge theory that can be established purely using formal arguments and calculations from algebraic topology.…”
Internet publication -
8431
Gravity anomalies, flexure and crustal structure at the Mozambique rifted margin
Published 2001“…The different amounts of sediment and underplate at rifted margins help, in fact, to explain the diversity of the edge effect, although they obscure the mechanics, styles and geometry of rifting. In this paper, combined 2-dimensional flexural backstripping and gravity modelling techniques are used to quantify the contribution of rifting, sediment loading and magmatic underplating to the edge effect anomaly at the Mozambique margin. …”
Journal article -
8432
Governance in international trade beyond the state: Collective agency, the actorness of trading blocs, and institutional learning
Published 2023“…It entails an increasingly variable and overlapping geometry of cooperation. The theory is then applied to explain the governance of international trade, where trading blocs emerge as transnational actors. …”
Thesis -
8433
Enhanced intersystem crossing and transient electron spin polarization in a photoexcited pentacene–trityl radical
Published 2020“…The efficiency of this spin polarization transfer depends on many factors: local magnetic and electric fields, excited-state energetics, molecular geometry, and spin-spin coupling. Here, we present transient electron paramagnetic resonance (EPR) measurements on three pentacene derivatives tethered to Finland trityl, BDPA, or TEMPO radicals to explore the influence of the nature of the radical on the spin polarization transfer. …”
Journal article -
8434
Candels: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey
Published 2011“…In this paper, we describe the basic motivations for the survey, the CANDELS team science goals and the resulting observational requirements, the field selection and geometry, and the observing design. The Hubble data processing and products are described in a companion paper. © 2011. …”
Journal article -
8435
Active colloids and polymer translocation
Published 2013“…Motivated by fluctuating biological channels and the prospect of frequency based selectivity we investigate the response of a homopolymer through a pore that has a time dependent geometry. We show that a time dependent mobility can capture many features of the frequency response.…”
Thesis -
8436
Refined crystal structures of Escherichia coli and chicken liver dihydrofolate reductase containing bound trimethoprim.
Published 1985“…For TMP bound to chicken dihydrofolate reductase we observe an altered binding geometry in which the 2,4-diaminopyrimidine occupies a position in closer proximity (by approximately 1 A) to helix alpha B compared to the pyrimidine position for TMP or methotrexate bound to E. coli dihydrofolate reductase. …”
Journal article -
8437
Rate dependent behaviour and dynamic strain localisation of three novel impact resilient titanium alloys: Experiments and modelling
Published 2019“…It is found that the KHL model predicts the experimentally measured strain field, deformed geometry, effective strain rate and macroscopic force-displacement response during the high strain rate experiments with significantly better agreement than the JC model. …”
Journal article -
8438
Conformal field theory and numerical techniques in the fractional quantum hall effect
Published 2023“…</p> <p>In Chapter 3, it is shown that all chiral Parton-type FQHE ground and edge state trial wave functions, in the planar geometry, can be expressed as CFT correlation functions. …”
Thesis -
8439
Preparation of biomimetic photo-responsive polymer springs
Published 2016“…They are shape shifting under irradiation with ultraviolet light and can be pre-programmed to either wind or unwind, as encoded in their geometry. Once illumination is stopped, the springs return to their initial shape in ambient light conditions.…”
Journal article -
8440
Structural and thermogravimetric studies of group I and II borohydrides
Published 2010“…Particular attention was paid to the exact geometry of the borohydride ions which were generally found to be perfect tetrahedra but with orientational disorder. …”
Thesis