Browsing School of Chemistry by Title
Now showing items 174-193 of 360
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Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis
(1999)Raman spectroscopy offers the potential for the identification of illegal narcotics in seconds by inelastic scattering of light from molecular vibrations. In this study cocaine, heroin, and MDMA were analyzed using near-IR ... -
Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis.
(ASTM International, 1999)Raman spectroscopy offers the potential for the identification of illegal narcotics in seconds by inelastic scattering of light from molecular vibrations. In this study cocaine, heroin, and MDMA were analyzed using near-IR ... -
Ignition characteristics of 2-methyltetrahydrofuran: An experimental and kinetic study
(Elsevier, 2016-10-10)The present paper elucidates oxidation behavior of 2-methyltetrahydrofuran (2-MTHF), a novel second-generation biofuel. New experimental data sets for 2-MTHF including ignition delay time measurements in two different ... -
An ignition delay and kinetic modeling study of methane, dimethyl ether, and their mixtures at high pressures
(Elsevier ScienceDirect, 2014-09-29)The development of accurate chemical kinetic models capable of predicting the combustion of methane and dimethyl ether in common combustion environments such as compression ignition engines and gas turbines is important ... -
An ignition delay time and chemical kinetic modeling study of the pentane isomers
(Elsevier, 2016-10-26)Ignition delay times of n-pentane, iso-pentane, and neo-pentane mixtures were measured in two shock tubes and in a rapid compression machine. The experimental data were used as validation targets for the model described ... -
Ignition delay time measurements of diesel and gasoline blends
(Elsevier, 2020-09-23)Blends of diesel and gasoline can be used to achieve certain desired ignition characteristics in advanced compression ignition engine concepts. In this work, ignition delay times were measured for two blends of diesel and ... -
Ignition delay times, laminar flame speeds, and mechanism validation for natural gas/hydrogen blends at elevated pressures
(Elsevier, 2013-12-30)New experimental ignition delay time data measured in both a shock tube and in a rapid compression machine were taken to determine the increase in reactivity due to the addition of hydrogen to mixtures of methane and natural ... -
Ignition studies of n-heptane/iso-octane/toluene blends
(Elsevier ScienceDirect, 2016-07-09)Ignition delay times of four ternary blends of n-heptane/iso-octane/toluene, referred to as Toluene Primary Reference Fuels (TPRFs), have been measured in a high-pressure shock tube and in a rapid compression machine. The ... -
Impact of pig slurry amendments on phosphorus, suspended sediment and metal losses in laboratory runoff boxes under simulated rainfall
(Elsevier, 2012)Losses of phosphorus (P) when pig slurry applications to land are followed by a rainfall event or losses from soils with high P contents can contribute to eutrophication of receiving waters. The addition of amendments to ... -
The impact of the third O2 addition reaction network on ignition delay times of neo-pentane
(Elsevier, 2020-08-27)We studied the oxidation of neo-pentane by combining experiments, theoretical calculations, and mechanistic developments to elucidate the impact of the 3rd O2 addition reaction network on ignition delay time predictions. ... -
Implementation of an ISO 50001 energy management system using Lean Six Sigma in an Irish dairy: a case study
(Emerald, 2023-12-18)Purpose This article aims to optimise energy use and consumption by integrating Lean Six Sigma methodology with the ISO 50001 energy management system standard in an Irish dairy plant operation. Design/methodology/ap ... -
The in vivo potential-regulated protective protein of nitrogenase in azotobacter vinelandii supports aerobic bioelectrochemical dinitrogen reduction in vitro
(American Chemical Society, 2017-06-08)Nitrogenase, the only enzyme known to be able to reduce dinitrogen (N-2) to ammonia (NH3), is irreversibly damaged upon exposure to molecular oxygen (O-2). Several microbes, however, are able to grow aerobically and ... -
Industry 4.0 readiness in west of Ireland small and medium and micro enterprises – an exploratory study
(Taylor & Francis, 2023-03-21)Quality 4.0 is the new paradigm in the field of quality management, due to the advent of technological advancement and digital transformation of many organizations. The field of Quality 4.0 is still in its nascent stage, ... -
Influence of acyl groups on glucopyranoside reactivity in Lewis acid promoted anomerisation
(Elsevier, 2018-05-26)Lewis acid promoted anomerisation has potential in O- or S-glycoside synthesis. Herein, the anomerisation kinetics of thirty-one β-d-glucopyranosides was determined to determine how particular acyl protecting groups and ... -
Influence of chemical composition on the fluorescence lifetimes of crude petroleum oils
(Society of Photo-optical Instrumentation Engineers, 2003)Fluorescence based methods are increasingly being used for the analysis of crude oils because they offer high speed, low cost, non-contact, and non-destructive testing options. The fluorescence of crude oils is due to the ... -
The influence of co-formers on the dissolution rates of co-amorphous sulfamerazine/excipient systems
(Elsevier, 2016-03-16)A comprehensive study on the dissolution properties of three co-amorphous sulfamerazine/excipient systems, namely sulfamerazine/deoxycholic acid, sulfamerazine/citric acid and sulfamerazine/sodium taurocholate (SMZ/DA, ... -
Influence of excipients on cocrystal stability and formation
(American Chemical Society, 2020-05-26)Cocrystal formation is widely used to modify and optimize the physicochemical properties of an active pharmaceutical ingredient (API). However, the stability of cocrystals toward formulation with excipients is little ... -
The influence of iso-butene kinetics on the reactivity of di-isobutylene and iso-octane
(Elsevier, 2020-09-06)The continuous development of a core C-0 - C-4 kinetic mechanism generally involves updating it using reliable kinetics and thermodynamics and may also involve the inclusion of missing reaction pathways to improve the ... -
Influence of protein (human galectin-3) design on aspects of lectin activity
(Springer, 2020-04-25)The concept of biomedical significance of the functional pairing between tissue lectins and their glycoconjugate counterreceptors has reached the mainstream of research on the flow of biological information. A major challenge ... -
Influence of steam dilution on the ignition of hydrogen, syngas and natural gas blends at elevated pressures
(Elsevier ScienceDirect, 2014-11-10)This paper presents the influence of steam dilution on the autoignition behaviour of hydrogen, carbon monoxide, syngas, methane, and natural gas mixtures under gas turbine-relevant conditions. Rapid compression machine ...