1401 research outputs found
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Gallium ion-binding capacity of mature Pseudomonas aeruginosa biofilm EPS - dataset
No full textThe CASTEP input and output files for all reported Ga-substitution systems. This includes PolyM and PolyMG alginates, in the 1, 2 and 4 chain forms
Supplementary data for the manuscript "Barriers and enablers for scaled-up adoption of compressed earth blocks in Egypt".
No full textThis dataset is a summary of the anonymized responses from the survey participants and interviewees for the paper titled: "Barriers and enablers for scaled-up adoption of compressed earth blocks in Egypt" https://doi.org/10.1080/09613218.2023.223713
Dataset supporting the publication 'Dynamic finite element analysis of hip replacement edge loading: balancing precision and run time in a challenging model'
No full textThis dataset contains the full set of output values from a modelling study, summarised as follows.
An important aspect in evaluating the resilience of hip replacement designs is testing their performance under adverse conditions that cause edge loading of the acetabular liner. The representation of edge loading conditions in computational models is computationally challenging, however, due to the changing contact locations, need for mesh refinement, and dynamic nature of the system.
In the associated paper, an initial starting point for finite element modelling of this type of testing was developed. This consisted of recommendations for aspects such as the element type and shape, and to set up the head as the translating component and fix the liner using boundary conditions. It also included recommendations for element sizing for the bulk of the liner and the contacted rim, and a mass-scaling target time increment for the elements of the liner. In the paper we present a relatively clean sensitivity study to justify these choices and describe the sensitivity of results around them so that someone putting together a new model can hopefully do so far more quickly. There was a large amount of underpinning sensitivity testing, however, which was less structured but important for getting to this final recommendation. This data packet therefore contains results from two preliminary load cases (A and B) as well as the data used in the supported paper (case C)
Forest cover change Tanzania 1987 to 2021 & biomass data
Get PDFThis dataset includes forest cover change data for village land in Tanzania (1987 - 2021) and biomass and species richness data for areas of natural forest regeneration. R and Google Earth Engine codes used in the analysis are also included
A Plantar Surface Shear Strain Methodology Utilising Digital Image Correlation Data Set
No full textThis data set contains the collated data for participants 1-6 from the study "A Plantar Surface Shear Strain Methodology Utilising Digital Image Correlation", showing anatomical regional outputs for strain within corresponding regions of interest
Three subject-specific human tibiofemoral joint finite element models: complete three-dimensional imaging (CT & MR), experimental validation and modelling dataset.
Get PDFThis dataset includes the experimental data, three-dimensional imaging, computational models and study data from work validating three subject-specific human tibiofemoral joint finite element models. This work forms part of a wider project developing in vitro and in silico pre-clinical testing methods for tissue preserving treatments of the knee joint. The aim of the related study was to provide validation of contact mechanics outputs for specimen-specific tibiofemoral joint models and specifically investigate the need for subject-specific shape representation for the cartilage and meniscus tissues. The dataset provides a complete set of imaging, experimental and computational data for replication of the study. To maximum the potential for re-use the dataset includes imaging and experimental data, which was collected alongside the immediate study data, but not used in that work. Magnetic resonance imaging of the knee joints in their intact state is included, using eight different imaging sequences. Micro computed tomography imaging of the distal femur and proximal tibia after dissection and testing are also provided for all three knee joints. The experimental data includes pressure sensor measurements taken from the tibial cartilage surface at multiple knee joint flexion angles and photographs taken during dissection, potting and loading of the joints. The computational models are provided for all cases performed for the validation and sensitivity testing study, along with the associated results
Separation of heating and magnetoelastic coupling effects in surface-acoustic-wave-enhanced creep of magnetic domain walls
No full textSurface acoustic waves (SAWs) have significant potential for energy-efficient control of magnetic domain walls (DW) owing to the magnetoelastic coupling effect. However, the dissipation of radio frequency (RF) power in a SAW device can result in heating, which can also affect the DW motion. In this work, the heating of a SAW device consisting of a Pt/Co/Ta thin film with perpendicular magnetic anisotropy in between two interdigitated transducers was measured in-situ using an on-chip Pt film as a thermometer within the SAW beampath. The application of SAWs at a center frequency of 48 MHz and a total RF power of 21 dBm resulted in a temperature increase of approximately 10 K within the SAW beam path owing to RF power dissipation. DW velocity in a Pt/Co/Ta thin film was evaluated separately using Kerr microscopy at various temperatures or in the presence of SAWs. With a 10K increase in temperature only, the DW velocity was found to increase from 33±3 µm/s (at room temperature) to 104±8 µm/s under an external magnetic field of 65 Oe. Travelling SAW-assisted DW velocity (116±3 µm/s) is slightly higher than that with a 10 K temperature increase alone, suggesting that the heating plays the major role in promoting DW motion, whereas the DW motion is significantly enhanced (418±8 µm/s) in the presence of standing SAWs indicating that magnetoelastic coupling is more important than heating in this scenario
Dataset associated with Liquid-crystal-based controllable attenuators for terahertz-frequency quantum-cascade lasers
No full textThis archive contains the dataset associated with the publication entitled ''Liquid-crystal-based controllable attenuators for terahertz-frequency quantum-cascade lasers".
There has been considerable progress in the development of terahertz-frequency (THz) radiation source and detectors, along with their potential applications in recent years. However, there remains a lack of adaptive optical components to manipulate, modulate and control THz radiation. Here, we demonstrate liquid-crystal devices (LCDs), made with a commercially available material (E7), with unbiased birefringence values of 0.14-0.18 in the 0.3-4 THz band. The LCDs were used to modulate the THz radiation generated from a 3.4-THz quantum cascade laser by up to 40%, dependent upon both the liquid crystal layer thickness and bias voltage applied.
Data included are the raw time-domain data used to calculate the refractive indices and absorption coefficients shown in Figure 1, the raw time-domain data used to calculate the change in THz transmission shown in Figure 2, and an example .json file used to provide the calculation parameters to the Nelly open-access THz spectroscopy package which is available on GitHub. Also included are the raw data for Figure 3
Data for Effect of Water on the Dissolution of Flax Fibers in the Ionic Liquid 1-ethyl-3-methylimidazolium acetate
No full textThis work has investigated the dissolution rate of flax fibers in the ionic liquid 1-ethyl-3-methylimidazolium acetate [C2mim] [OAc] with the addition of an anti-solvent, water. Optical microscopy has been used to analyses the resultant partially dissolved fibers. Distilled water was added to the solvent bath at the concentration of 1%, 2% and 4% by weight of the [C2mim] [OAc]. The effect of the addition of even small amounts of water was found to significantly decrease the speed of dissolution, decreasing exponentially as a function of water concentration. The resulting data of both pure (as received from the manufacturers) IL and IL/water mixtures showed the growth of the coagulated fraction as a function of both dissolution time and temperature followed time temperature superposition (TTS), and from this the dissolution was found to follow an Arrhenius behavior with an activation energy of 64 ± 5 kJ/mol for the IL as received (0.2%water). For 1%, 2% and 4% water systems, the activation energies were found to be 74 ± 7 kJ/mol, 97 ± 3 kJ/mol and 116 ± 0.6 kJ/mol respectively. Extrapolating these results to zero water concentration gave a value for the hypothetical dry IL (no water) of 58 ± 4 kJ/mol