A5024702765- Nonlinear Waves and Solitons
- Algebraic structures and combinatorial models
- earthquake and tectonic studies
- Black Holes and Theoretical Physics
- High-pressure geophysics and materials
- Quantum Mechanics and Non-Hermitian Physics
- Hydrocarbon exploration and reservoir analysis
- Numerical methods for differential equations
- Quantum chaos and dynamical systems
- Geological and Geophysical Studies
- Nonlinear Dynamics and Pattern Formation
- Seismic Imaging and Inversion Techniques
- Advanced Algebra and Geometry
- Geological and Geochemical Analysis
- Matrix Theory and Algorithms
- Marine and environmental studies
- Geophysics and Sensor Technology
- Innovative Teaching Methods
- Structural Health Monitoring Techniques
- Molecular spectroscopy and chirality
- X-ray Diffraction in Crystallography
- Hydraulic Fracturing and Reservoir Analysis
- Covalent Organic Framework Applications
- Catalytic Processes in Materials Science
- Seismic Performance and Analysis
University of Liverpool
2022-2025
City, University of London
2023-2024
Edwards (United Kingdom)
2015
BP (United Kingdom)
2015
This commentary is a call to make the future of chemistry laboratories accessible and inclusive. We draw from research lived experience put forward list recommendations for laboratory-based teaching. Our authorial team includes undergraduate postgraduate students, graduate teaching assistants, teaching-focused traditional academics, Diversity Equality Inclusion (DEI/EDI) academic expert. all have experiences disability, chronic illness, neurodivergence, other marginalizations related race,...
Hybrid organic–inorganic materials represent a fascinating class of compounds that combine the unique properties both organic and inorganic materials. This review provides an overview two classes hybrid materials: metal–organic frameworks perovskites, with their structures, applications, responses to external stimuli discussed. These hybrids leverage versatility molecules, for example, flexibility functionality, alongside robustness stability components through coordination between...
In this work, we investigated the response of metal-organic framework MIL-125-NH2 to ball-milling. Both localised and bulk analyses revealed prolongued ball-milling results in a complete loss long-range structural order. Investigation disorder partial retention local bonding secondary building unit, suggesting structure collapse progressed primarily through metal-linker bond breakage. We explored photocatalytic performance materials, examined materials' band gap using UV-Vis reflectance spectroscopy.
The development of metal-organic framework (MOF) crystal-glass composites (CGCs) has been hindered by the scarcity MOF glass matrices with low transition temperatures (Tgs). Here, we investigate a CGC consisting low-Tg glass, (agZIF-UC-7) and UiO-66. Powder X-ray diffraction stability tests in phosphate buffer saline solution showed UiO-66 was stabilised matrix. Additionally, composite exhibited enhanced dye uptake gas adsorption relative to agZIF-UC-7.
We compare a relativistic and nonrelativistic version of Ostrogradsky’s method for higher-time derivative theories extended to scalar field consider as an alternative multi-field variant. apply the schemes space–time rotated modified Korteweg–de Vries systems and, exploiting their integrability, Hamiltonian built from inverse Legendre transformed higher-order charges these systems. derive equal-time Poisson bracket structures theories, establish integrability latter by means Painlevé test...
A bstract We investigate the evolution of localized initial value profiles when propagated in integrable versions higher time-derivative theories. In contrast to standard cases nonlinear systems, where these evolve into a specific number N-soliton solutions as dictated by conservation laws, theories theoretical prediction is that can settle either two-soliton or any solutions. latter case this implies exhibit oscillations spread time but remain finite. confirm analytical predictions...
Abstract We provide further evidence for Smilga’s conjecture that higher charges of integrable systems are suitable candidates derivative theories possess benign ghost sectors in their parameter space. As concrete examples we study the properties classical phase spaces a number affine Toda lattices related to different types Kac–Moody algebras. identify several scenarios with charge Hamiltonians: some oscillatory, divergent, oscillatory and divergent behaviour when present quantum theory. No...
Abstract We discuss how a standard scattering theory of multi-particle generalises to systems based on Hamiltonians that involve higher-order derivatives in their quantum mechanical formulation. As concrete examples, we consider Hamiltonian built from charges Calogero and Calogero-Moser systems. Exploiting the integrability these systems, compute classical phase shifts briefly comment versions types theories.
First posted September 8, 2015 For additional information, contact: Director, Geologic Hazards Science Center U.S. Geological Survey Box 25046, Mail Stop 966 Denver, CO 80225http://geohazards.cr.usgs.gov/ The Mediterranean region is seismically active due to the convergence of Africa Plate with Eurasia plate. Present day Africa-Eurasia motion ranges from ~4 millimeters per year (mm/yr) in a northwest-southeast direction western ~10 mm/yr (north-south) eastern Mediterranean. plate boundary...
No fewer than four major tectonic plates (Arabia, Eurasia, India, and Africa) one smaller block (Anatolia) are responsible for seismicity tectonics in the Middle East surrounding region. Geologic development of region is a consequence number first-order plate processes that include subduction, large-scale transform faulting, compressional mountain building, crustal extension. In east, dominated by collision India with driving uplift Himalaya, Karakorum, Pamir Hindu Kush ranges. Beneath...
Seismicity in the Himalaya region predominantly results from collision of India and Eurasia continental plates, which are converging at a relative rate 40–50 mm/yr. Northward underthrusting beneath generates numerous earthquakes consequently makes this area one most seismically hazardous regions on Earth. The surface expression plate boundary is marked by foothills north-south trending Sulaiman Range west, Indo-Burmese Arc east, east-west Front north India. Along western margin plate,...
We compare a relativistic and nonrelativistic version of Ostrogradsky's method for higher-time derivative theories extended to scalar field consider as an alternative multi-field variant. apply the schemes space-time rotated modified Korteweg-de Vries systems and, exploiting their integrability, Hamiltonian built from inverse Legendre transformed higher-order charges these systems. derive equal-time Poisson bracket structures theories, establish integrability latter by means Painlev\'e test...
Abstract Higher Time Derivative Theories are generated by considering space-time roated KdV and mKdV systems. These systems then studied to see if/how instabilities, usually associated with higher time derivative theories, manifest on the classical level presenting both analytic numerical solutions. For a linearised version of these rotated we present detailed quantisation theory that highlights known dilemma have either negative norm states or Hamiltonian being unbounded from below.
We investigate the evolution of localized initial value profiles when propagated in integrable versions higher time-derivative theories. In contrast to standard cases nonlinear systems, where these evolve into a specific number N-soliton solutions as dictated by conservation laws, time derivative theories theoretical prediction is that can settle either two-soliton or any solutions. latter case this implies exhibit oscillations spread but remain finite. confirm analytical predictions...
The development of fast Li ion-conducting materials for use as solid electrolytes that provide sufficient electrochemical stability against electrode is paramount the future all-solid-state batteries. Advances on these ionic are dependent building structure-ionic mobility-function relationships. Here, we exploit a series multinuclear and multidimensional nuclear magnetic resonance (NMR) approaches, including 6Li 31P magic angle spinning (MAS), in conjunction with density functional theory...
Higher Time Derivative Theories are generated by considering space-time rotated KdV and mKdV systems. These systems then studied to see if/how instabilities, usually associated with higher time derivative theories, manifest on the classical level presenting both analytic numerical solutions. For a linearised version of these we present detailed quantisation theory that highlights known dilemma have either negative norm states or Hamiltonian being unbounded from below.
Hybrid organic-inorganic materials represent a fascinating class of compounds that combine the unique properties both organic and inorganic materials. These hybrids leverage versatility molecules - such as their flexibility functionality alongside robustness stability components through to coordination between components. This synergy leads innovative applications across various fields, including optoelectronics, gas storage separation, catalysis. By tailoring composition structure these...
Long offset (10 km), long record length (18 s) seismic reflection data acquired and processed during 2012-13 across the Australian NW Margin was interpreted in conjunction with reprocessed refraction, standard reflection, gravity, magnetic, well IODP borehole data. Moho has been for first time from comparisons made estimates refraction data, gravity isostatic modelling. Whilst there is broad agreement results can also be distinct differences, illustrated by Browse Basin (BB) Exmouth-North...
Long offset (10 km), long record length (18 s) seismic reflection data acquired and processed during 2012-13 across the Australian NW Margin was interpreted in conjunction with reprocessed refraction, standard reflection, gravity, magnetic, well IODP borehole data. The integration of enabled a new understanding crustal architecture basin fill, which varies dramatically along margin. Exmouth Plateau is characterized by Moho typically at ~22-26 km, thickness ~6-12 km sediment ~16-18 km. crust...
We provide further evidence for Smilga's conjecture that higher charges of integrable systems are suitable candidates derivative theories possess benign ghost sectors in their parameter space. As concrete examples we study the properties classical phase spaces a number affine Toda lattices related to different types Kac-Moody algebras. identify several scenarios with charge Hamiltonians: some oscillatory, divergent, oscillatory and divergent behaviour when present quantum theory. No was...
We discuss how a standard scattering theory of multi-particle generalises to systems based on Hamiltonians that involve higher-order derivatives in their quantum mechanical formulation. As concrete examples, we consider Hamiltonian built from charges Calogero and Calogero-Moser systems. Exploiting the integrability these systems, compute classical phase shifts briefly comment versions types theories.
Summary The Messinian interval in the West Nile Delta, offshore Egypt, is a thin evaporite layer characterized by highly irregular velocities with rapid spatial variations. Its complexity poses unique challenges for sub-Messinian reservoir imaging, resulting erratic gather curvatures, distorted structures, and nonuniform illumination. Conventional ray-based tomography suffers from unreliable curvature picking due to poor quality, complex move-out, inaccurate ray tracing through fast layer....