Browsing Civil Engineering by Title
Now showing items 103-122 of 422
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Effects of complex hydrodynamic processes on the horizontal and vertical distribution of Tc-99 in the Irish Sea
(Elsevier ScienceDirect, 2010-10-14)The increased discharge of Tc-99 from the Sellafield plant following the commissioning of the Enhance Actinide Removal Plant in 1994 was reflected in higher Tc-99 activity concentrations over much of the Irish Sea The ... -
Effects of fertiliser on phosphorus pools in soils with contrasting organic matter content: A fractionation and path analysis study
(Elsevier, 2018-12-05)With the intensification of agricultural production in many European countries, more marginal soils with elevated organic matter (OM) content are being brought into cultivation. However, little is known about the transformations ... -
The effects of planting density on the structural timber properties of 23-year-old Irish-grown Sitka spruce
(NUI Galway, 2016-08-29)In Europe, with the move towards more sustainable construction, there is an increasing demand for structural timber. The purpose of this research is to explore new forestry management strategies, which will produce an ... -
Effects of substrate stress and light intensity on enhanced biological phosphorus removal in a photo-activated sludge system
(Elsevier, 2020-11-06)Photo-activated sludge (PAS) systems are an emerging wastewater treatment technology where microalgae provide oxygen to bacteria without the need for external aeration. There is limited knowledge on the optimal conditions ... -
Effects of wastewater pre-treatment on clogging of an intermittent sand filter
(Elsevier, 2023-03-11)Intermittent sand filters (ISFs) are widely used in rural areas to treat domestic and dilute agricultural wastewater due to their simplicity, efficacy and relative low cost. However, filter clogging reduces their operational ... -
The efficiency of a sequencing batch reactor (SBBR) in organic carbon and phosphorus removal
(Taylor & Francis, 2005)A laboratory sequencing batch biofilm reactor (SBBR), operated for a period of 158 days, was used to treat domestic-strength synthetic effluent. The biofilm. reactor comprised a bulk fluid reactor, a biofilm plastic module, ... -
The elastic and ductile behaviour of CLT wall-floor connections and the influence of fastener length
(Elsevier, 2019-03-30)An investigation was carried out to examine the influence of the fastener length on the elastic and ductile failure behaviour of typical steel-to-timber bracket connections in Cross Laminated Timber (CLT) manufactured from ... -
An embodied carbon and embodied energy appraisal of a section of Irish motorway constructed in peatlands
(Elsevier, 2015-01-29)In addition to the customary drivers of cost and timely project delivery, embodied energy (EE) and embodied carbon (EC) have come to prominence in recent years as major design considerations in all aspects of large-scale ... -
Empirical correlations for the compression index of Irish soft soils
(ICE Institution of Civil Engineers, 2014-09-08)Numerous correlations have been developed in the literature relating the compression index Cc of soft soils to simple index properties that serve as a useful reality check on oedometer test results. However, many of these ... -
End use level water and energy interactions: A large non-residential building case study
(MDPI, 2018-06-19)Within the European Union, buildings account for around 40% of the energy use and 36% of CO2 emissions, thus representing a significant challenge in the context of recent EU directives that require all new buildings to be ... -
Energy efficiency facets: Innovative district cooling systems
(Entrepreneurship and Sustainability Center, 2017-03-31)Cooling demand in buildings is globally increasing, therefore developing more efficient cooling systems is important for the sustainability of European cities. Directive 2012/27/EU of the European Parliament and of the ... -
An energy management maturity model for multi-site industrial organisations with a global presence
(Elsevier, 2017-07-27)Literature reviewed suggests energy maturity models are in their infancy in the energy management sector, with little practical guidance for their implementation in multi-site organisations. In addressing this gap, this ... -
Energy transfer ratio for hydraulic pile driving hammers
(NUI Galway, 2016-08-29)The ability of hydraulic pile driving hammers to overcome energy losses during freefall enables a greater proportion of the impact energy to be transferred to the pile in comparison to diesel hammers. This percentage, ... -
Engineering in Communities Learning by Doing
(2012)Purpose The purpose of this paper is to focus on a number of initiatives in civil engineering undergraduate programmes at the National University of Ireland, Galway (NUIG) that allow students to complete engineering ... -
Enhancement of bauxite residue as a low-cost absorbent for phosphorus in aqueous solution, using seawater and gypsum treatments.
(Elsevier, 2018-01-20)Bauxite residue (red mud), the by-product produced in the alumina industry, is being produced at an estimated global rate of approximately 150Mt per annum. Due to its highly alkaline nature, many refineries use neutralisation ... -
Enhancing low grade sitka spruce glulam beams with bonded-in BFRP rods
(National University of Ireland Galway, 2014)The reinforcement of timber elements using fibre reinforced polymer (FRP) rods or plates is widely accepted as an effective method of increasing the stiffness of members, while at the same time reducing the variability ... -
Environmental impacts of milk powder and butter manufactured in the Republic of Ireland
(Elsevier, 2016-11-11)The abolition of the milk quota system that was in place in Europe was abolished in 2015, which instigated an immediate increase in milk production in many European countries. This increase "will aid in addressing the ... -
The environmental performance of a reinforced precast concrete slab with void forming system
(2014)In some climates people spend approximately 90% of their lives indoors. Thus, it is very important to maintain healthy and comfortable conditions in buildings. The building sector is responsible for about 40% of the ... -
Erodibility of hill peat
(Teagasc, 2006-06-30)The energy necessary to entrain soil in water depends on the soil strength. Once entrained, the settling velocity of the eroded soil in water is of fundamental importance to the processes of sediment transport and deposition. ... -
Estimation of Maximum Biosolids and Meat and Bone Meal Application to a Low P Index Soil and a Method to Test for Nutrient and Metal Losses
(2013)The aim of this study was to develop (1) a method for the calculation of the maximum legal rate at which meat and bone meal (MBM) and biosolids should be applied to land, which took into account the soil phosphorus (P) ...