Browsing Civil Engineering by Title
Now showing items 245-264 of 422
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Microplastics in sewage sludge: effects of treatment
(American Chemical Society, 2016-12-12)Waste Water Treatment Plants (WWTPs) are receptors for the cumulative loading of microplastics (MPs) derived from industry, landfill, domestic waste water and storm water. The partitioning of MPs through the settlement ... -
Mineral fertiliser equivalent value of dairy processing sludge and derived biochar using ryegrass (Lolium perenne L.) and spring wheat (Triticum aestivum)
(Elsevier, 2022-08-20)As supply chains of chemical fertilisers become more precarious, raw or derived bio-based fertilisers (herein referred to as bio-fertilisers) from the dairy processing industry could be good alternatives. However, their ... -
Mitigating ammonia and greenhouse gas emissions from stored cattle slurry using agricultural waste, commercially available products and a chemical acidifier.
(Elsevier, 2021-02-05)Bovine slurry and its subsequent storage are significant sources of ammonia (NH3) and greenhouse gases (GHGs). Chemical acidification of manures has been shown to significantly reduce these emissions. Waste products, derived ... -
Mitigation of ammonia and greenhouse gas emissions from stored cattle slurry using acidifiers and chemical amendments
(Elsevier, 2019-07-28)Cattle and cow slurry storage is a significant source of agricultural greenhouse gas (GHG) and ammonia (NH3) emissions. While acidification has been demonstrated to significantly reduce these emissions, a knowledge gap ... -
Model-based fault detection and diagnosis of air handling units: A comparison of methodologies
(Elsevier, 2014-12-26)This paper presents a comparison between two model based diagnostics methodologies that can be used to detect and diagnose various faults that occur in Air Handling Units. The process from model development to inference ... -
Modelling nutrient and chlorophyll_a dynamics in an Irish brackish waterbody
(Elsevier, 2004-01)This paper presents aspects of a research investigation into nutrient fluxes into and out of an important Irish estuary, Wexford Harbour, located in the southeast of Ireland. Details of the methodology applied, the data ... -
Modelling nutrients and chlorophyll-a dynamics in an Irish brackish waterbody
(Elsevier, 2004)This paper presents aspects of a research investigation into nutrient fluxes into and out of an important Irish estuary, Wexford Harbour, located in the southeast of Ireland. Details of the methodology applied, the data ... -
Modelling of fretting in the pressure armour layer of flexible marine risers
(Elsevier, 2016-03-04)This paper presents a computational methodology for frictional contact mechanics of the pressure armour layer in flexible risers. This will allow, for the first time, quantification of key fretting variables, such as contact ... -
Modelling phytoplankton dynamics in a complex estuarine system
(2011)The primary objective of this research was to develop a generic methodology for numerical modelling of the water quality within estuarine systems; in particular, this research focused on modelling nutrient dynamics and ... -
Modelling stone column installation in an elasto-viscoplastic soil
(Taylor & Francis, 2014-12-31)The majority of numerical studies investigating stone column performance have used “wished-in-place” columns (no installation effects) in conjunction with elastoplastic soil models (no viscous effects). In the first part ... -
Modelling the effects of climate change on urban coastal-fluvial flooding
(IWA Publishing, 2020-01-23)In coastal floodplains, high river flows and high coastal water levels can result in extensive flooding. Twenty-first century climate change is expected to alter these flood mechanisms. In this study, a coastal city of ... -
Modelling the hygro-mechanical creep behaviour of FRP reinforced timber elements
(Elsevier, 2020-06-20)A fully coupled moisture-displacement finite element model has been developed to predict the viscoelastic, mechano-sorptive and swelling/shrinkage behaviour of FRP reinforced timber elements when stressed under long-term ... -
Modified wood as compression reinforcement of timber perpendicular to the grain
(National University of Ireland Galway, 2021-08-09)An investigation was carried out to examine the potential to utilise modified wood as a reinforcement for timber subjected to compression loading perpendicular to the grain. In recent years there has been a significant ... -
ModSCO. Online Reduced Order Models (ROM) to address the performance gap
(MDPI, 2019-07-25)This communication presents ModSCO, a web application that supports systematic energy performance evaluation using Reduced Order Models (ROM). These models are particularly useful in scenario with missing, incomplete or ... -
Modulus of elasticity prediction through transversal vibration in cantilever beams and ultrasound technique of different wood species
(Elsevier, 2023-02-21)The prediction of the modulus of elasticity (MOE) of five species of different spectrum density woods, namely, Populus × euramericana I-214 (Poplar), Fagus sylvatica L. (Beech), Quercus pyrenaica L. (Oak), Paulownia elongata ... -
Multiphase numerical modelling of hydraulic structures with rapidly rotating flows: Stormwater vortex hydrodynamic separator
(Conferences and Events at DigitalCommons@USU, 2018-05-15)Hydraulic structures exhibiting strongly rotating flows are widely applied in the field of urban and wastewater hydraulics. Given demographic, urban development and climate change challenge, such infrastructure will require ... -
National Centre for Water and Wastewater Research and Demonstration
(EPA: STRIVE Report 78, 2010)Decentralised wastewater treatment systems for small towns (200 2,000 PE) often have different design requirements to those of systems for larger conurbations even though the treatment process technologies may be similar. ... -
Nested circulation modelling of inter-tidal zones: details of a nesting approach incorporating moving boundaries
(2010)Nested circulation models developed to date either exclude the flooding and drying process or prohibit flooding and drying of nested boundaries; they are therefore ill-suited to the accurate modelling of inter-tidal areas. ... -
A nested hydrodynamic model incorporating flooding and drying
(2009)A one-way nested version of the hydrobiological model DIVAST (Depth Integrated Velocity and Solute Transport) is introduced. The nested model allows flooding and drying of intertidal areas, a process often present in areas ... -
A nested version of the combined hydrodynamic and water quality model, DIVAST
(2007)The present research deals with the development of a one-way nested version of the combined hydrodynamic and water quality model DIVAST (Depth Integrated Velocity and Solute Transport). Initial research has concentrated ...