Publications
Guidelines for mix proportioning of fly ash/GGBS based alkali activated concretes
Publication ID: pub.1085131260
Keywords: Alkali Activated Binders/Concretes; Fly Ash; Ground Granulated Blast Furnace Slag; Selection of Mixed Proportions
The effects of paste volume, water content and precursor blend on consistency, setting time and compressive strength of alkali activated concrete (AAC) produced with fly ash (FA) and ground granulated blast furnace slag (GGBS) have been investigated with the aim of developing a suitable mix design procedure. Paste volumes in the range 30–33% were found […]
Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations
Publication ID: pub.1040378785
Keywords: Astrochronology; Carbon-cycle; Cyclostratigraphy; Early Jurassic; Global; Pliensbachian; Strontium Isotopes
The Early Jurassic was marked by multiple periods of major global climatic and palaeoceanographic change, biotic turnover and perturbed global geochemical cycles, commonly linked to large igneous province volcanism. This epoch was also characterised by the initial break-up of the super-continent Pangaea and the opening and formation of shallow-marine basins and ocean gateways, the timing […]
Examining the Dynamics of Energy Demand through a Biographical Lens
Publication ID: pub.1032605295
Keywords: Biography; Cardiff; Consumption; Ely and Caerau; Life-course; London; Low Carbon Transitions; Peterston-Super-Ely; Royal Free Hospital; Social Change; Social Reproduction; Tir y Gafel; UK; Whitland
It is widely recognized that a major challenge in low carbon transitioning is the reduction of energy consumption. This implies a signifi cant level of transformation in our ways of living, meaning the challenge is one that runs deep into the fabric of our personal lives. In this article we combine biographical research approaches with […]
A surrogate model for simulation–optimization of aquifer systems subjected to seawater intrusion
Publication ID: pub.1052551954
Keywords: EPR; Evolutionary Modelling; Optimization; Seawater Intrusion; Surrogate Model
This study presents the application of Evolutionary Polynomial Regression (EPR) as a pattern recognition system to predicate the behavior of nonlinear and computationally complex aquifer systems subjected to seawater intrusion (SWI). The developed EPR models are integrated with a multi objective genetic algorithm to examine the efficiency of different arrangements of hydraulic barriers in controlling […]
Small world picture of worldwide seismic events
Publication ID: pub.1038827523
Keywords: Global; Q-exponential Distributions; Seismic Networks; Small-world Networks
The understanding of long-distance relations between seismic activities has for long been of interest to seismologists and geologists. In this paper we have used data from the worldwide earthquake catalog for the period between 1972 and 2011 to generate a network of sites around the world for earthquakes with magnitude m≥4.5 in the Richter scale. […]
A primal–dual mimetic finite element scheme for the rotating shallow water equations on polygonal spherical meshes
Publication ID: pub.1044328081
Keywords: Compound Finite Element; Dual Finite Element; Mimetic; Shallow Water
A new numerical method is presented for solving the shallow water equations on a rotating sphere using quasi-uniform polygonal meshes. The method uses special families of finite element function spaces to mimic key mathematical properties of the continuous equations and thereby capture several desirable physical properties related to balance and conservation. The method relies on […]
