1056 research outputs found
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Dataset relating to "Cementitious materials data for aerial additive building manufacturing", phase one, 2017
No full textThis dataset contains test data relating to the Aerial Additive Building Manufacturing project's initial phase of investigations into cementitious pastes and mortar mixes. A series of mixes are formulated using CEM1, fly-ash, silica fume, polyol resin, limex, building sand and plasticiser in varying quantities and the mixes are tested in terms of mechanical strength, rheology, calorimetry, microstructure and creep. Data collected from the tests are stored in Microsoft Excel format. Mixes are also evaluated qualitatively (by inspection) and quantitatively (using power requirements) by the ease in which they pass through a small lightweight syringe-based automated deposition device (workability) and the buildability of the mixes (the ability to support their own weight and the weight of subsequently deposited layers) is assessed by inspection.Data was collected from the software of the various testing devices and imported into Microsoft Excel.
Power data and qualitative data concerning buildability were collected by inspection and written recording
Dataset for "Insights into the piezoceramic electromechanical impedance response for monitoring cement mortars during water saturation curing"
No full textLead Zirconate Titanate (PZT) based electromechanical impedance (EMI) sensors were used to monitor the effect of water saturation curing on cementitious mortar mixes with different water to cement ratios (w/c), during the first 28 days of curing under water. This dataset contains the impedance signature measurements for nine samples which represent three different mixes monitored from the 2nd to 28th day of curing. The dataset also includes the compressive and flexural strengths at five points during the curing process.For ‘Analysis PZT_EMI Data.xlsx’, A 2 V voltage amplitude was used to actuate the PZT sensors, by a Newtons4th PSM 3750 frequency analyzer (Newtons4th Ltd., Leicester, UK) interfaced with an impedance analyzer. The impedance analyzer and the PZT sensors were connected through 50 Ω coaxial cables; specifically, the cables connected to the impedance analyzer at one end and to the PZT soldered wires at the other.
For ‘Flexural and compressive.xlsx’, A 100 kN Instron static testing frame was used for both the flexural and compressive stress measurements.The spreadsheets are in MS Excel format.The dataset is composed of two Excel files.
‘Analysis PZT_EMI Data.xlsx’ is composed of nine separate sheets. These sheets are named as Ci-j, in which i is the mortar mix number, and j is the sample number. The values of i and j range from 1 to 3. Each sheet contains the impedance signature measurements for each sample from the age of 2 days till the age of 28 days. The impedance signature was collected by using a Newtons4th PSM 3750 frequency analyzer (Newtons4th Ltd., Leicester, UK) interfaced with an impedance analyzer. One thousand steps were collected per measurement as mentioned in the methodology in the associated paper. The columns of each sheet show Step, Frequency (Hz), Z Real (ohms), Z Quadrature (ohms), Z Magnitude (ohms), Z Phase (°).
‘Flexural and compressive.xlsx’ contains the average flexural and the compressive stresses for the different mixes at the ages of 3, 7, 14, 21, and 28 days. Sheet 1, which is named ‘Compressive strength’, contains the compressive strength data, and sheet 2, named ‘Flexural strength’, contains the Flexural strength data
Dataset for "Increased Photocorrosion Resistance of ZnO foams Through Transition Metal Doping"
No full textRaw data files for X-ray diffraction (XRD), high-performance liquid chromatography (HPLC), UV-Vis, inductively coupled plasma-mass spectrometry (ICPMS), X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS) and X-ray absorption near edge structure (XANES) associated with the paper "Increased Photocorrosion Resistance of ZnO foams Through Transition Metal Doping." XRD contains raw data of XRD spectra used to analyse crystallinity and crystal phase of ZnO samples. HPLC contains the raw data used to produce degradation profiles of carbamazepine when exposed to the photocatalyst. ICPMS contains the raw data collected to analyse the concentration of metal in the pollutant stream, allowing for analysis of material stability and assess stability to photocorrosion. UV-Vis contains the raw data used to analyse the band gap of the materials. XPS and UPS contains the raw data used to elucidate the band edge positions of the material. XANES includes the raw data used to analyse the near edge extended structure of the material.XRD — Sampling between 2θ of 20–90 with Cu K alpha X-rays.
HPLC — Degradation experiments used 1 mL samples taken every 15 or 30 minutes. Analysis was performed on a Thermo Scientific Ultimate 3000 liquid chromatograph with a UV detector. CBZ analysis used a Thermo Scientific Acclaim 120 C18 column (3.0 × 75.0 mm, particle size 3.0 µm) and a Thermo Scientific Acclaim 120 C18 guard column (R) 120 C18 (3.0 × 10.0 mm, particle size 5.0 µm). The mobile phase was made up using 5.0 mM phosphoric acid and acetonitrile 70:30 (v:v) with a flow rate of 0.8 mL min⁻¹, injection volume of 20 µL and detection wavelength of 285 nm.
ICPMS — All samples, standards and blanks, were spiked with internal standard elements Be, In, and Re. The Zn concentration was calibrated using six synthetic standards prepared from a 1000 ppm Inorganic Ventures (VA, USA).
XPS — Kratos Axis UPRA using monochromated Al kα (1486.69 e ) X-rays at 15 mA emission and 12 kV HT (180W) and a spot size/analysis area of 700 × 300 µm and a He(I) UV lamp running at 20 mA emission. The instrument was calibrated to gold metal Au 4f (83.95 eV) and dispersion adjusted gave a BE of 932.6 eV for the Cu 2p3/2 line of metallic copper. Ag 3d5/2 line FWHM at 10 eV pass energy was 0.544 e. Source resolution for monochromatic Al Kα X-rays is ~0.3 eV. The instrumental resolution was determined to be 0.29 eV at 10 eV pass energy using the Fermi edge of the valence band for metallic silver. Resolution with charge compensation system on <1.33 eV FWHM on PTFE. High resolution spectra were obtained using a pass energy of 20 eV, step size of 0.1 eV and sweep time of 60s, resulting in a line width of 0.696 eV for Au 4f7/2. Survey spectra were obtained using a pass energy of 160 eV. Charge neutralisation was achieved using an electron flood gun with filament current = 0.4 A, charge balance = 2 , filament bias = 4.2. Successful neutralisation was adjudged by analysing the C 1s region wherein a sharp peak with no lower BE structure was obtained. Spectra have been charge-corrected to the main line of the carbon 1s spectrum (adventitious carbon) set to 284.8 eV.
All data was recorded at a base pressure of below 9 x 10-9 Torr and a room temperature of 294 K. Data was analysed using CasaXPS v2.3.19PR1.0. Peaks were fit with a Shirley background prior to component analysis
Dataset for the results of fibrous plaster tests: Flexural and FTIR tests for moisture and fungal degradation samples
No full textThe data concerns the tests conducted to date concerning fibrous plaster material. The dataset consists of tests for fibrous plaster flexural tests and FTIR tests. Test samples were made and tested in the laboratories of the University of Bath. Flexural tests were conducted on rectangular samples which had been subjected to a range of moisture and fungal degradation. Hessian fibres within the flexural samples subjected to moisture and fungal treatments were further tested using FTIR and a peak ratios method was used to compare results with mechanical performance.Flexural examples: Twelve specimens each of a variety of moisture and fungal related treatments. Rectangular specimens were tested in three point bending tests. Samples groups included specimens both with and without hessian fibres.
FTIR: Hessian fibres were then taken from samples and twelve specimens were tested from one sample from each sample group of the flexural specimens subjected to a variety of moisture and fungal treatments.Flexural: 50 kN capacity test rig, Instron 3366 Universal testing machine applying a central point load at a displacement rate of 0.5 mm/min until a 1.5 mm displacement was reached, with the rate then increasing to 5 mm/min until a total displacement of 10 mm.
FTIR: A Perkin Elmer Frontier FTIR instrument with a diamond Attenuated Total Reflectance head was used for the scans. A Mercury-Cadmium-Telluride (MCT) detector cooled by liquid nitrogen was used for the mid-infrared sensitivity and provides a better response for the low levels of energy reaching the detector. The scan resolution was 4 cm-1 with a wave number range from 600 cm-1 to 4000 cm-1. 32 scans were completed for each specimen.Data is available in Microsoft Excel spread sheets
Dataset for "Mindfulness for voices: An experimental analogue study"
No full textThis dataset supports the paper "Mindfulness for voices: An experimental analogue study of the effect of manipulating response style to simulated voices in a non-clinical population". It contains measures related to the Southampton Mindfulness Questionnaire and Toronto Mindfulness Scale; measures of average response time and proportion of correct responses; measures of baseline and post-test anxiety and distress, participants' self-report of response style, and perceived awareness of the research hypothesis; and demographic information about the participants. Supporting the dataset are the experimental protocol, scripts and recordings for induction exercises, the codebook and the R analysis script.Full details of the methodology can be found in the associated paper
Data supporting the paper "Trapping of ultrashort pulses in non-degenerate parametric conversion"
No full textThe dataset consists of several MATLAB data files (*.mat), corresponding to the figures in the paper. The naming of the files is self-explanatory. Each MATLAB file contains all variables (as arrays) used in each plot. For 2D plots, there are separate 1D arrays for x- and y- coordinates, i.e., if there are several lines in a plot, there will be several corresponding variables for the y-coordinates of each line. For surface plots, all variables are stored as 2D arrays.Full details of the methodology may be found in the associated paper
Dataset for Quantifier Elimination and CAD examples in Maple
Get PDFThis dataset provides the following:
- 'QE Example Database.mpl': a file that can be read into Maple that loads an interactive database of QE examples, along with functions to build and print them,
- 'CADDatabase.mm': a file that can be read into Maple that loads a table of purely unquantified examples for CAD, 'CADExamples', with no auxillary functions. These examples are of various types, but are compatible with the input semantics of 'CylindricalAlgebraicDecompose' for the package 'QuantifierElimination' for Maple.
- 'TarskiFormulaLaTeXTools.mpl': a file that can be read into Maple that allows Maple to better format Tarski formulae (type 'TarskiFormula' arising from the package 'QuantifierElimination') for LaTeX when passed into Maple's inbuilt function 'latex'.
- 'Example Database Info.pdf': A pdf documenting reference and origin information about all examples from the databases included.
All formulae or otherwise semi-algebraic sets produced by usage of these files are in 'RationalTarskiFormula' or 'TarskiFormula' type, for compatibility with 'QuantifierElimination'. They are amenable to usage with Maple packages 'RegularChains' or 'SyNRAC', after some conversion.
- 'QuantifierEliminationConversionTools.mpl': a file that can be read into Maple that loads two functions for conversion of Tarski formulae from 'QuantifierElimination' format, 'convertQEtoRC', 'convertQEtoSyNRAC', and 'convertQEtoQEPCAD' which convert to format amenable to 'RegularChains', 'SyNRAC', or 'QEPCAD' respectively. 'QEPCAD' requires bespoke input, so one can write the produced string to a file before redirection into QEPCAD.
More information about each file is in the metadata for each file.The CAD and QE examples contained in the relevant database come from a wide range of sources, documented in the contained pdf. Where appropriate, these may have been reformatted into Maple format, eg. from Mathematica format for the economics examples.
Many of the examples arise from David Wilson's CAD database (reference found in the .pdf), and where appropriate they have been reformatted as the relevant QE problem for the QE database. Otherwise, they may have had some slight reformatting such that they form lists of relations, or sets of polynomials.Maple 2019.0 or newer is sufficient to view the examples. Previous versions of Maple may suffice, although cannot be guaranteed. The examples are all written to be directly compatible for functions contained in the package 'QuantifierElimination' for Maple, to be released. Conversion for usage with Maple packages 'RegularChains' or 'SyNRAC' is available by the included conversion routines.
A version of 'RegularChains' is included with any consumer version of Maple, but the newest version is also available online. 'SyNRAC' is only available online
Dataset for the results of fibrous plaster tests: Pull-off samples tensile tests.
No full textThe data concerns the tests conducted to date concerning fibrous plaster pull-off test samples. Samples were made and tested in the laboratories of the University of Bath. Tensile tests were performed on 'pull-off' samples where an attached cylinder was pulled from a base plate to test the adhesion of the cylinder material to the base plate material.Pull-Off: Twelve specimens each from multiple sample groups which consisted of a new cylinder element attached to a base plate, and the cylinder pulled off the base plate using tensile loading on a bespoke test rig. Sample groups included both hessian and quadaxial glass fibres, gypsum plaster, jesmonite and aramid gel. Bases were both clean and 'dirty' - with historic mould applied.Pull-off: 100 kN capacity test rig Dartec Universal Testing Machine, displacement controlled tensile loading at 0.2 mm/min.Data is available in Microsoft Excel spread sheets and Origin software output
Dataset for "A simplified model for minor and major loop magnetic hysteresis and its application for inference of temperature in induction heated particle beds"
No full textThe dataset contains the background data for recreation or use of the results presented in Figures 2 - 7. The data supports the recent publication that demonstrated how a LangArc model can successfully fit both major and minor hysteresis loops of a bed of magnetic particles in real time using instruments that detect changes in the magnetic field strength, such as in-situ pick-up coils. The data is intelligible when cross-referenced to the respective Figure, its caption and experimental details published in the article.
The data presents a full numerical representation of the results published in the article including the direct experimental data and the model fit results for the various cases. The data will support other researchers in developing their own models to fit the results of magnetic hysteresis experiments.See experimental details in the article.N/ASee experimental details in the article
Drug Discovery teaching projects at University of Bath
No full textThis collection contains records for Drug Discovery teaching projects at the University of Bath. The details of each project is contained within metadata of individual records
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