1056 research outputs found
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Challenges in artificial socio-cognitive systems: A study based on intelligent vehicles: Dataset
No full textThis record contains the (video) data and source code created in relation to the submitted thesis of the same title.The videos included in this collection have been derived using the 3D view components included in the BSF software framework, during a number of scenarios explained more fully in the related thesis: "Challenges in artificial socio-cognitive systems: A study based on intelligent vehicles"
Additional views such as the graph views have been created from the rdfUtilities package.
These scenarios can be re-run by using the included version of the BSF framework which is provided as zip file. From the command line, run "ant -p" to see available projects, which includes the traffic simulation, institutions, 3D view, and more
20th International Conference on Composite Materials (ICCM20) X-ray CT videos
No full textVideos linked to X-ray CT images in paper entitled "X-RAY COMPUTED TOMOGRAPHY OF DAMAGE FORMATION UNDER IN-SITU LOADING" presented at ICCM20, July 2015.
X-RAY COMPUTED TOMOGRAPHY OF DAMAGE FORMATION UNDER IN-SITU LOADING
A. Sandhu1, L. Glen1, M. Doughty1, A. T. Rhead1
1Department of Mechanical Engineering, University of Bath
Claverton Down, Bath, BA2 7AY, UK
Email: [email protected], web page: http://www.bath.ac.uk/mech-eng
Keywords: In-situ loading, X-ray CT, Damage, Impact
ABSTRACT
Use of X-ray Computed Tomography (XRCT) to investigate damage morphology has previously been constrained to post-test analysis of unloaded coupons. As delaminations and intra-ply cracks close when load is removed, a limit is placed on the information available for identifying mechanisms causing resin and fibre fracture. Here, a newly developed loading stage, for in-situ XRCT imaging of laminates under quasi-static impact loading, is employed to visualise the mechanisms that drive the formation of damage morphologies. Multiple X-ray CT scans taken at increasing indenter displacements reveal the evolution of damage morphology. Various laminates subject to out-of-plane, near-edge or on-edge impacts are assessed. For out-of-plane and on-edge impact, both a conventional and novel stacking sequence are considered. Favourable formation mechanisms that occur in laminates with novel sequences are highlighted. In particular, damage from out-of-plane impacts is seen to occur in two stages. The first stage is instantaneous, with multiple shear-driven intra-ply cracks and inter-ply delaminations occurring at plies with dissimilar interfaces. In the second stage, shear-driven cracking gives way to peeling of layers. This peeling is focussed at certain weaker interfaces and is driven by an intact core of material pushing through the laminate. The latter process is clearly demonstrated by testing of a laminate with stacking sequence [04/904]s. Results indicate that stacking sequence can be used to force the development of favourable damage morphologies that protect load carrying plies and prevent the near surface delaminations which enable sublaminate buckling driven failures.Paper published at 20th International Conference on Composites Materials (ICCM20), Copenhagen, Denmark, 2015.
X-RAY COMPUTED TOMOGRAPHY OF DAMAGE FORMATION UNDER IN-SITU LOADING
A. Sandhu1, L. Glen1, M. Doughty1, A. T. Rhead1
1Department of Mechanical Engineering, University of Bath
Claverton Down, Bath, BA2 7AY, UK
Email: [email protected], web page: http://www.bath.ac.uk/mech-eng
Keywords: In-situ loading, X-ray CT, Damage, Impact
ABSTRACT
Use of X-ray Computed Tomography (XRCT) to investigate damage morphology has previously been constrained to post-test analysis of unloaded coupons. As delaminations and intra-ply cracks close when load is removed, a limit is placed on the information available for identifying mechanisms causing resin and fibre fracture. Here, a newly developed loading stage, for in-situ XRCT imaging of laminates under quasi-static impact loading, is employed to visualise the mechanisms that drive the formation of damage morphologies. Multiple X-ray CT scans taken at increasing indenter displacements reveal the evolution of damage morphology. Various laminates subject to out-of-plane, near-edge or on-edge impacts are assessed. For out-of-plane and on-edge impact, both a conventional and novel stacking sequence are considered. Favourable formation mechanisms that occur in laminates with novel sequences are highlighted. In particular, damage from out-of-plane impacts is seen to occur in two stages. The first stage is instantaneous, with multiple shear-driven intra-ply cracks and inter-ply delaminations occurring at plies with dissimilar interfaces. In the second stage, shear-driven cracking gives way to peeling of layers. This peeling is focussed at certain weaker interfaces and is driven by an intact core of material pushing through the laminate. The latter process is clearly demonstrated by testing of a laminate with stacking sequence [04/904]s. Results indicate that stacking sequence can be used to force the development of favourable damage morphologies that protect load carrying plies and prevent the near surface delaminations which enable sublaminate buckling driven failures
Dataset for "Oxidation of GaN : An ab initio thermodynamic approach"
No full textSupporting data and MATLAB code for thermodynamic models of oxygen defect formation in GaN.Ab initio calculations detailed in open-access publication:
Jackson, A. J. & Walsh, A. Oxidation of GaN: An ab initio thermodynamic approach. Phys. Rev. B 88, 165201 (2013).
MATLAB code written by AJJ
Thermochemical data from literature is cited where it appears in the code, and in the paper
Degradation of a β-O-4 model lignin species by vanadium Schiff-base catalysts: influence of catalyst structure and reaction conditions on activity and selectivity
No full textThe data uploaded is the raw data so that the reader can follow the procedure we used for the determination of the rate constants and activation energies in the papersThe data was determined from 1H NMR spectroscopic measurements using the procedure determined in the paper.
There are two excel files which contain the raw data for the determination of rate constants. We used a simple pseudo first order approach and plotted the natural log of concentration vs time and the gradient in the first order rate constant. We also plotted the natural log of k vs 1/T to give us the activation energy
Data for "Crystalline adducts of the Lawsone molecule (2-hydroxy-1,4-naphthaquinone): optical properties and computational modelling"
No full textRaw data to accompany the publication "Crystalline adducts of the Lawsone molecule (2-hydroxy-1,4-naphthaquinone): optical properties and computational modelling"
Supporting data for Rapid Volume Optimisation method
No full textSupporting data for application of RVO to several systems.Quantum chemical calculations with the "VASP" and "FHI-aims" codes. See paper for details.This is raw data and energy-volume (E-V) curves. These curves are simply produced by extracting the relevant lines from the calculation output. Further processing and the production of the published graphs is achieved through the open-source code available from https://github.com/WMD-Bath/rvo or https://doi.org/10.5281/zenodo.31940. This implements and simulated application of the novel methodology discussed in the research paper
Dataset for "Timing of replication is a determinant of neutral substitution rates but does not explain slow Y chromosome evolution in rodents"
No full textThe dataset consists of intronic substitution rates (Ki) for mouse-rat orthologs using the July 2007 (mm9) and November 2004 (rn4) assemblies respectively, both obtained from the UCSC Table Browser. Intronic substitution rates were corrected for multiple hits according to the model of Tamura and Kumar (2002) Mol Biol Evol, 19:1727-1736. The dataset was further filtered to control for selective effects as described in the methodologies of Pink et al. (2009) Genome Biol Evol. 1:13-22, and Pink and Hurst (2010) Mol Biol Evol. 27(5): 1077-1086. Two intronic substitution rate datasets are provided: The main findings of Pink and Hurst (2010) were based on a filtered dataset, purged of all introns thought to be evolving under purifying selection that had failed a test for clusters of conserved bases, potentailly indicative of hidden functional sites. An unfiltered dataset underpins supplementary findings. Full details of the test and other filters for selection are provided in Pink et al. (2009).
The dataset combines intronic substitution rates with mouse replication times. Replication timing data for mouse cell lines prior to differentiation were downloaded from www.replicationdomain.org (Hiratani et al. (2008) PLoS Biol, 6:e245). The four available datasets were treated as replicates: Three derived from embryonic stem cells and a fourth derived from induced pluripotent stem cells (iPS). Positive values were indicative of early replication and negative values were indicative of replication later during S-phase.
Positions of genes on the mouse genome were defined by the terminal 5’ and 3’ base pairs of the coding sequence. These positions were obtained from annotations of the July 2007 assembly (mm9). As mouse replication timing data were assigned genomic coordinates based on the February 2006 assembly (mm8), the stand alone liftOver utility and associated chain file mm9ToMm8.over.chain, both obtained from UCSC, were used to convert positions between builds. Genic replication times were then taken from an average of times determined for probe positions overlapping with any part of the orthologous gene, within the limits of the coding sequence. Both means and medians are provided for each gene.
The dataset also includes intronic GC content and extent of intronic G+T skew for each ortholog, the latter used as a proxy for germ-line expression rate. The published datasets are the original .txt and .xls formats produced by the scripts, as well as .xlsx and .csv versions for preservation purposes, containing the variables described above. Details of methodologies are provided both in the publications Pink et al. (2009) and Pink and Hurst (2010), as well as the accompanying readme file. The readme file also contains details of the original sources of input data. Scripts used to process these input data and create the final datasets are also provided
Understanding and responding to adults bereaved following a drug or alcohol-related death
No full textAbstract copyright data collection owner. Qualitative data from 100 in-depth Interviews with 106 adults (including 6 couples) bereaved following a drug or alcohol-related death.
The research is being led by researchers in the Centre for Death and Society at the University of Bath who have experience in conducting research on bereavement. Other members of the research team are based at the University of Stirling and have experience in addiction studies. A bereaved family member will also be part of the research team. The study aims to make a significant contribution to the bereavement and substance misuse literature, raise awareness of issues faced by those suffering this type of loss and inform evidence-based practice guidelines.Interviewees were recruited via local and national services, including drug and alcohol treatment services, generic bereavement services, and the few services in each study area offering specific support for substance use bereavement. Initial recruitment relied upon participant self-selection and convenience sampling. Once interviewing was underway, snowball and, later, purposive sampling were used to increase diversity, for example, including bereaved individuals who were themselves in treatment for or recovery from substance use. The resulting sample of 106 (including 6 couples) was diverse in age, relationship to the deceased, time since death and personal experience of substance use,Interviews were audio recorded and fully transcribed. A coding frame of the key areas covered in the interviews was developed to guide a detailed thematic analysis, aided by NVivo, version 10 (see topic guide)
Dataset supporting "Hierarchical 3D ZnO Nanowire Structures via Fast Anodization of Zinc" published in Journal of Materials Chemistry A, 2015
No full textThis dataset contains all of the original data used in the preparation of the publication titled "Hierarchical 3D ZnO Nanowire Structures via Fast Anodization of Zinc" and including any supplementary information. Data includes original FESEM and TEM micrographs in addition to materials characterisation data such as XPS, XRD, and FT-IR.Details of the data collection method and all experimental details can be found within the published manuscript which is provided with full open access
Production of lipid from depolymerised lignocellulose using the biocontrol yeast, Rhodotorula minuta: The fatty acid profile remains stable irrespective of environmental conditions
No full textThe oleaginous yeast Rhodotorula minuta has been used previously as a biocide agent and for the production of β-carotene. In addition, R. minuta has been shown to produce up to 40% lipids, while demonstrating a faster growth rate than the similar oleaginous yeasts; Lipomyces starkeyii and Rhodotorula glutinis. In this study this promising yeast was evaluated for its potential to produce glyceride lipids under the harsh conditions and complex sugar mixtures produced from depolymerised lignocellulose. The fatty acid profile of R. minuta was not found to change significantly irrespective of the environmental conditions and contained approximately 20% palmitic acid, 5% stearic acid, 60% oleic acid and 15% linolenic acid. R. minuta was found to grow on a range of sugars, and could consume xylose and glucose when both sugars were present, however, R. minuta was found to be highly sensitive to inhibitors, such as furfurals and organic acids, formed under the harsh lignocellulose depolymerisation conditions. Accordingly R. minuta did not grow well on biomass depolymerised with an acid pre-treatment stage. However, R. minuta was cultured successfully on food waste depolymerised with no additional acids, producing up to 19 g /L cell mass with a lipid content of up to 25% of the dry cell weight.A range of analytical techniques have been used to collect the data, full information is availlable in the experimental section of the corresponding paper.The source information for the figures presented in the publication is presented in excel speadsheets labelled with the figure or table number. In the excel spreadsheets there are individual tabs with source data and the figures themselves. The files only need a current version of microsoft excel to access them, Jpgs. are also given of figure 1 generated from Matlab (the source data is presented in an excel sheet labelled Fig 1)
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