Browsing Chemical Sciences by Title

Now showing items 199-218 of 505

gbell Learning function along with fuzzy mechanism in prediction of two-phase flow

Babanezhad, Meisam; Nakhjiri, Ali Taghvaie; Marjani, Azam; Shirazian, Saeed (American Chemical Society, 2020)

The integration of the computational ﬂuid dynamics (CFD) and the adaptive network-based fuzzy inference system, known as ANFIS, is investigated for simulating the hydrodynamic in a bubble column reactor. The Eulerian−Eulerian ...
Genotypic and phenotypic analysis of Ralstonia pickettii high purity water isolates

Ryan, Michael P. (University of Limerick, 2009)

Ralstonia is a newly characterised genus that includes former members of the Burkholderia species (Ralstonia pickettii and Ralstonia solanacearum). The type species of the genus-Ralstonia pickettii (type strain, ATCC27511) ...
Genotypic and phenotypic diversity of Ralstonia pickettii and Ralstonia insidiosa isolates from clinical and environmental sources including high-purity water. Diversity in Ralstonia pickettii

Ryan, Michael P.; Pembroke, Tony J.; Adley, Catherine C. (BioMed Central, 2011)

Background: Ralstonia pickettii is a nosocomial infectious agent and a significant industrial contaminant. It has been found in many different environments including clinical situations, soil and industrial high purity ...
The Genus ochrobactrum as major opportunistic pathogens

Ryan, Michael P.; Pembroke, Tony J. (MDPI, 2020)

Ochrobactrum species are non-enteric, Gram-negative organisms that are closely related to the genus Brucella. Since the designation of the genus in 1988, several distinct species have now been characterised and implicated ...
A geospatial assessment of the rooftop decarbonisation potential of industrial and commercial zoned buildings: an example of Irish cities and regions

Horan, William; Byrne, Susan; Shawe, Rachel; Moles, Richard; O'Regan, Bernadette (Elsevier, 2020)

This paper describes a framework for estimating the effectiveness of photovoltaic and rainwater harvesting technology deployment on industrial and commercial zoned buildings to facilitate reducing national GHG emissions. ...
Gradients in the in vivo intestinal stem cell compartment and their in vitro recapitulation in mimetic platforms

Malijauskaite, Sigita; Connolly, Sinéad Á.; Newport, David; McGourty, Kieran Denis (Elsevier, 2021)

Intestinal tissue, and specifically its mucosal layer, is a complex and gradient-rich environment. Gradients of soluble factor (BMP, Noggin, Notch, Hedgehog, and Wnt), insoluble extracellular matrix proteins (laminins, ...
Green metrics analysis applied to the simultaneous liquid-phase etherification of isobutene and isoamylenes with ethanol over AmberlystTM 35

Soto, Rodrigo; Fité, Carles; Ramírez, Eliana; Bringué, Roger; Iborra, Montserrat (De Gruyter, 2014)

A case study of the green metrics analysis of several processes is described. The considered system is the simultaneous etherification of isobutene and isoamylenes with ethanol over AmberlystTM 35. Experimental results are ...
Greening healthcare: systematic implementation of environmental programmes in a university teaching hospital

Ryan-Fogarty, Yvonne; O'Regan, Bernadette; Moles, Richard (Elsevier, 2016)

The provision of healthcare creates significant environmental impacts, and their mitigation is being attempted in a variety of ways which vary from nation to nation in line with differing policy priorities and resource ...
Growth of silicon and germanium nanowires in the vapour phase of high boiling point organic solvents

Geaney, Hugh (University of Limerick, 2012)

Herein is presented the development of a versatile glassware based method for the growth of silicon and germanium nanowires. The vapour phase of a high boiling point solvent medium heated to reflux is used as a means of ...
Hepatic macrophage responses in inflammation, a function of plasticity, heterogeneity or both?

Zwicker, Christian; Christian, Anna; Scott, Charlotte L. (Frontiers Media, 2021)

With the increasing availability and accessibility of single cell technologies, much attention has been given to delineating the specific populations of cells present in any given tissue. In recent years, hepatic macrophage ...
Heterologous production and characterisation of cation diffusion facilitator proteins from the marine bacterium Maricaulis maris MCS10

Russell, David (University of Limerick, 2012)

Cation diffusion facilitators are a diverse family of transporters responsible for the efflux of zinc and other divalent metals from cells. Several putative members of this family were selected as potential targets for ...
High density germanium nanowire growth directly from copper foil by self induced solid seeding

Geaney, Hugh; Dickinson, Calum; Barrett, Christopher A.; Ryan, Kevin M. (American Chemical Society, 2011)

Herein, we describe the growth of highly dense germanium nanowire mats directly on copper foil by a self induced, solid seeded protocol. The existence of Cu3Ge tips on each of the nanowires indicates that growth proceeds ...
Higher tolerance to sulfur poisoning in CO2 methanation by the presence

Alarcón, Andreina; Guilera, Jordi; Soto, Rodrigo; Andreu, Teresa (Elsevier, 2020)

This study investigates the deactivation mechanism of CeO2-promoted catalyst for the CO2 methanation reaction. The catalytic performance was evaluated at high temperature (T=500 ºC,P=5 bar·g) and under the presence of ...
Highlighting the importance of full-cell testing for high performance anode materials comprising Li alloying nanowires

Geaney, Hugh; Bree, Gerard; Stokes, Killian; McCarthy, Kieran; Kennedy, Tadhg; Ryan, Kevin M. (Electrochemical Society, 2019)

Herein, the electrochemical performance of directly grown Ge nanowire anodes in full-cell Li-ion configurations (using lithium cobalt oxide cathodes) are examined. The impacts of voltage window, anode/cathode balancing and ...
Highly efficient oxygen evolution reaction enabled by phosphorus doping of the Fe electronic structure in iron–nickel selenide nanosheets

Huang, Yuan; Jiang, Li-Wen; Shi, Bu-Yan; Ryan, Kevin M.; Wang, Jian-Jun (Wiley and Sons Ltd, 2021)

The electronic structure of active sites is critically important for electrochemical reactions. Here, the authors report a facile approach to independently regulate the electronic structure of Fe in Ni0.75Fe0.25Se2 by ...
Hydro-pyrolysis and catalytic upgrading of biomass and Its hydroxy residue fast pyrolysis vapors

Liu, Yichen; Leahy, James J.; Grams, Jacek; Kwapinski, Witold (MDPI, 2019)

Fast pyrolysis of Miscanthus, its hydrolysis residue and lignin were carried with a pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) followed by online vapor catalytic upgrading with sulfated ZrO2, sulfated TiO2 ...
Hydrogen production from formic acid vapour over a Pd/C catalyst promoted by potassium salts: evidence for participation of buffer-like solution in the pores of the catalyst

Jia, Lijun; Bulushev, Dmitri A.; Beloshapkin, Sergey; Ross, Julian R.H. (Elsevier, 2014)

Doping a 1 wt.% Pd/C catalyst with alkali metal carbonates has a very significant promotional effect on its activity in hydrogen production from the decomposition of formic acid vapour (2 vol.%, 1 bar), potassium and caesium ...
Hydrogenation of sunflower oil over Pt-Ni bimetallic supported catalysts: preparation, characterisation and catalytic activity

McArdle, Shane; Leahy, James J.; Curtin, Teresa; Tanner, David A. (Elsevier, 2014)

It had been reported that in order to improve oil hydrogenation catalysts the geometric or electronic effects of the catalysts must be manipulated in order to achieve the desired activity or selectivity. To achieve this, ...
Hyphenated analytical techniques for materials characterisation

Armstrong, Gordon; Kailas, Lekshmi (European Physical Society: IOP Publishing, 2017)

This topical review will provide a survey of the current state of the art in 'hyphenated' techniques for characterisation of bulk materials, surface, and interfaces, whereby two or more analytical methods investigating ...
Identification of difficult topics in the teaching and learning of Chemistry in Irish schools and the development of an intervention programme to target some of these difficulties

Childs, Peter; Sheehan, Maria (University of Limerick, Department of Chemical & Environmental Science, 2010)

The purpose of this investigation was to identify the topics in Chemistry that the majority of Irish pupils find difficult from Junior Certificate level right through to Third Level. It was then hoped to determine the ...

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