1056 research outputs found
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Dataset for "Alkali activation behaviour of un-calcined montmorillonite and illite clay minerals"
No full textChemical characterisation data describing the precursors and cured products formed when reacting montmorillonite and illite clay precursors with sodium hydroxide solution at Na:Al molar ratios of 0-1.5 and 0-0.75.Fig 1; Fig A2 - Atterberg plastic limit measurements were taken over a range of sodium hydroxide solution concentrations, based on BS 1377-2:1990.
Fig 2; Fig 3; Fig 4; Fig A1; Fig A3 - Powder X-ray diffraction (PXRD) analysis was done to identify phases with a Bruker D8 Advance instrument using monochromatic CuKalpha1 L3 (λ = 1.540598 Å) X-radiation and a Vantec superspeed detector. A step size of 0.016⁰(2θ) and step duration of 0.3 seconds were used.
Fig 7; Fig 8; Fig A5; - Thermogravimetric analysis (TGA) was done to characterise thermal behaviour, using a Setaram Setsys Evolution TGA over a range of 30 to 1000 °C at a heating rate of 10 °C/minute. An air atmosphere was used, with a flow rate of 20 ml/minute. A connected mass spectrometer was used (Pfeiffer Omni) to identify whether evolved gas species contained OH, H2O, CO or CO2.
Fig 9; Fig 10 - Magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra were measured for 27Al and 29Si to characterise coordination states, using a Varian VNMRS in direct excitation. Standards used were 1M aq. Al(NO3)3 for 27Al and tetramethylsilane for 29Si. Spin rates used were 12 kHz for 27Al and 6 kHz for 29Si, and frequencies used were 104.199 kHz for 27Al and 79.435 MHz for 29Si. Sample holders were 4mm width for 27Al and 6mm width for 29Si.
Fig 11; Fig A6 - Fourier Transform Infrared Spectroscopy (FTIR) was done to characterise molecular bonding, using a Perkin-Elmer Frontier with a diamond Attenuated Total Reflectance (ATR) head. Spectra were collected over a range of 4000-600 cm-1 using a resolution of 4cm-1 and 5 scans per spectrum.Fig 2; Fig 3; Fig 4; Fig A1; Fig A3 - Patterns were corrected for sample height shift by calibrating to the most intense quartz reflection (101) at 26.6 °(2θ).
Fig 3 - Le Bail extractions and Rietveld refinements of the structure were performed using JANA 2006 to extract the background signal.
Fig 11; Fig A6 - Corrections were made for ATR and background using Perkin-Elmer Spectrum software
Dataset for "3D Printed composite membranes with enhanced anti-fouling behaviour”
Get PDFThis dataset includes all the original data for this project including the design of the 3D membrane support, detailed methodology of membrane preparation and characterisation results, raw data of the filtration tests.The PES selective layer was prepared by first dissolving 15 wt. % of granular PES in 85 wt. % DMAc at room temperature. The mixture was stirred using a roller mixer (SRT6D, Stuart Equipment) at 60 rpm for 48 hours until the PES was completely dissolved, resulting in a yellowish transparent solution. The polymer solution was left for at least 24 hours to release any air bubbles generated during mixing. Phase inversion was used to fabricate the selective layer by casting the polymer solution directly onto a clean glass plate using a casting knife with a gap height of 50 µm at approximately 30% relative humidity and room temperature (19 – 21 ͦ C). The glass plate with the cast film was immediately immersed in a coagulation bath of deionised water at room temperature to initiate the phase separation process. To remove any traces of DMAc, the membrane was then kept/stored in water for at least 3 days with the fresh water replaced every 24 hours. Fig. 2 in the manuscript summarises the procedure that has been used to prepare the wavy 3D composite membranes. An example of a 3D wavy support is shown in Fig 2a. A piece of PES selective layer with dimensions 7 × 7 cm was cut (Fig. 2b) after checking with a backlit LED light box to identify any damage or holes. An undamaged film was then placed over the 3D support and 250 mbar vacuum pressure (without water) was applied for 1 minute to adhere the selective layer over the 3D support. Then, vacuum filtration with pure water was applied for 30 minutes to increase adherence and stability of the selective layer over the 3D support (Fig. 2c), resulting in a wavy composite membrane (Fig. 2d). The same procedure was followed to make flat 3D composite membranes.The instruments used included a scanning electron microscope, a digital microscope (VHX – 6000, Japan), a cross flow rig, 3D polyjet and casting machine.
The software used included OpenScad, Autodesk Inventor Professional 2016, and Labview
Data for Lightning Sferics: Complex Waveform Analysis
Get PDFData for figures in the publication 'Lightning Sferics: Analysis of the Instantaneous Phase and Frequency Inferred From Complex Waveforms'.
The dataset contains the averaged lightning waveforms at different distances, and the code that was used to produce each figure in the publication.Full details are contained in the manuscript associated with this dataset
Data for 'Toward healthy housing for the displaced'
No full textThe population of people living in temporary settlements after disasters is in the millions and the average stay in these settlements exceeds a decade. The issue of the thermal performance of shelters and their impact on health is generally overlooked by the academic community. In an attempt to rebalance this situation, thermal surveys were conducted in two refugee camps in Jordan. Thermal monitoring data of the shelters over two weeks in summer and winter are presented in this dataset.Environmental monitoring data (temperature C and relative humidity %) was collected using I-buttons (DS1923-F5 Temperature and humidity logger) in 5 shelters in each camp, over 10 days in summer and winter. measurements were recorded at half an hour intervals. The I-buttons were placed in the middle of the one room shelter at 1.5m high.
A weather station was positioned on the roof a UNHCR caravan, temperature and humidity measurements were taken every minute and an average recoded every 30 minutes.thermal adaptation and social survey data available at: https://doi.org/10.15125/BATH-00424
Dataset for "A synergistic use of microalgae and macroalgae for heavy metal bioremediation and bioenergy production through hydrothermal liquefaction"
No full textThis is the data set related to the paper of the same title. In this investigation a novel synergistic approach for the bioremediation of metal-contaminated water and bioenergy production was developed. Two microalgae, Chlorella vulgaris and Arthrospira platensis (Spirulina), and two macroalgae, Ulva lactuca and Sargassum muticum, were used as passive bioremediation agents for the metals Ni(II), Zn(II), Cd(II) and Cu(II). The metals were added singularly and in combination. The metal contaminated biomass was then processed through hydrothermal liquefaction to yield four phases: a bio-crude oil, an aqueous phase, solid residue and gas.
Within this data set is the raw data for metal absorption and for the metal distribution in the various phases of the reactionSee methods section of the accompanying journal articleAll data was then used in excel to display graphicallynon
Dataset for Two-way photonic interface for linking the Sr + transition at 422 nm to the telecommunication C band
No full textDataset for the publication "Two-way photonic interface for linking the Sr + transition at 422 nm to the telecommunication C band". Includes both the raw data code used to calculate the up- and down-conversion efficiencies, signal to noise ratios and μ1 values plotted in the manuscript.Single photon detector counts were recorded using a time tagging module, with the raw data stored in Matlab workspace variables. Microsoft Excel Workbook files contain time stamps relating to the start and finish of data runs as well as measurements of input pump and source powers. Datasets are included for both up and down conversion.The data were processed in MATLAB R2017b according to the included .m scripts. File names prefixed uc_ and dc_ relate to up and down conversion respectively.Matlab is required to read the .mat data files and .m scripts
Dataset for "Development of a mixed-species biofilm model and its virulence implications in device related infections"
No full textThis dataset contains the data underlying the figures presented in "Development of a mixed-species biofilm model and its virulence implications in device related infections". The associated paper reports the development of a simple mixed-species biofilm model using strains of two clinically significant bacteria, Staphylococcus aureus and Pseudomonas aeruginosa, grown on nano-porous polycarbonate membranes on nutrient agar support. The following data tables are included:
- Total number of viable cells (in colony forming units/biofilm) recovered from 8 selected single-species biofilms (Figure 3a).
- Total number of viable cells (in colony forming units/biofilm) recovered from 5 mixed-species biofilms (Figure 3b).
- Fluorescent response of lipid vesicles after incubation with planktonic culture of 20 S. aureus in tryptic soy broth and 10 P. aeruginosa strains in Luria broth (18 hours culture) for 24 hours (Figure 4a).
- Fluorescent response of prototype diagnostic dressing to single-species biofilms after incubation at 33°C for 24 hours (Figure 4b).
- Fluorescent response of prototype diagnostic dressing in triplicate to each mixed-species biofilm, based on positive control dressing with 250 µM 5,6-carboxyfluorescein (Figure 5a).
- Time dependent variation of biofilm cells (colony forming units) and in situ fluorescent response of prototype diagnostic dressing throughout the biofilm formation of S. aureus and P. aeruginosa in mixed-species biofilms (Figure 6a).
- Reduction of viable biofilm cells (colony forming units) in single-species biofilms of S. aureus and P. aeruginosa using 2% octenidine hydrochloride containing hydrogel (Figure 6b).Full details of the methodology may be found in the "Materials and Methods" section of the associated paper
Dataset for "Fibre-integrated noise gating of high-purity heralded single photons"
No full textDataset for the publication "Fibre-integrated noise gating of high-purity heralded single photons". Includes the raw and analysed data used to calculate and plot the coincidence-to-accidentals ratio and heralded second-order coherence data in the manuscript.Raw data collected using custom FPGA based coincidence counting electronics built in-house. Singles and coincidence count rates recorded as a function of input pump laser power, with and without the noise gate active.Data processed in Matlab. Data stored as .mat files.Requires Matlab to open and manipulate dataset.Full details of the methodology are provided in the associated paper. A post-print of this paper is available from https://arxiv.org/abs/1705.01778
Dataset for 'Development of an Infection-Responsive Fluorescent Sensor for the Early Detection of Urinary Catheter Blockage'
No full textFormation of crystalline biofilms following infection by Proteus mirabilis can lead to encrustation and blockage of long-term indwelling catheters, with serious clinical consequences. We describe a simple sensor, placed within the catheter drainage bag, to alert of impending blockage via a urinary colour change.
The dataset presented shows data from the characterisation and testing of the prototype sensors, Including: investigation into the fluorescent properties of 5(6)-carboxyfluorescein (CF) (fluorescence output vs CF concentration and fluorescence output vs solution pH), change in pH vs time for P. mirabilis subcultures and bacterial supernatants, corresponding dye release vs time, as well as data from the testing of the sensors within the in vitro bladder model system (change in fluorescence output within the drainage bag and approximate CF concentration with time). Investigation into the initial dye release kinetics was also undertaken and the data presented in this dataset. Standard curves at three different pHs (6,7 and 8) are presented as well as the overlaid release profiles over time.A plate reader (BMG Labtech) was used to quantify fluorescent output throughout these experiments.
Basic bacterial subculturing was used from a single bacterial colony, to create subcultures.
To create supernatants, overnight cultures were centrifuged at 4000 rpm for 10 minutes and the supernatant separated from the pellet.All data were processed in GraphPad Prism software. Graphs were plotted and statistical analysis (unpaired t test) were performed within the same software.Equipment: Electronic pH meter (Jenway)
Plate reader (BMG fluorostar)
Software: GraphPad Prism 7.02 for Window
Dataset for "Energy dissipation in the inner surf zone: new insights from LiDAR-based roller geometry measurements"
No full textThis dataset includes the LiDAR surface elevation measurements from which wave and surface roller properties were extracted following the methodology described in the article "Energy dissipation in the inner surf zone: new insights from LiDAR-based roller geometry measurements", submitted to Journal of Geophysical Research: Oceans. The complete wave and roller dataset is provided along with all the data used to produce the Figures of the article.The data was collected following the methodology described in Section 2.1 of the manuscript.The methodology used to extract to wave and roller properties from the LiDAR dataset is described in Section 2.2 of the manuscript.To read the data, a software capable of reading .mat files is required (e.g. MATLAB)
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