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334 results for “Foam”
Finite element mesh of fusion energy heat exchange component: hybrid CAD/IBSim model including a graphite foam interlayer
<p>Image-Based Simulation (IBSim) mesh:<br> A finite element mesh of a conceptual design for a fusion energy heat exchange component (monoblock). The mesh is a hybrid from a computer aided design (CAD) drawing for the pipe and armour and IBSim for the interlayer. The IBSim interlayer is generated directly from a 3D volumetric image of a graphite foam block (KFoam). The 3D image was generated with an X-ray tomography scan performed by Dr Llion Evans with Manchester X-ray Imaging Facility equipment, which was funded in part by the EPSRC (grants EP/F007906/1, EP/F001452/1 and EP/I02249X/1). Conversion of the data to FE mesh was achieved using ScanIP, part of the Simpleware suite of programmes, version 7 (Synopsys Inc., Mountain View, CA, USA).</p> <p>The FE mesh data uses the EnSight Gold file format and may be visualised using Paraview (<a href="https://www.paraview.org">https://www.<strong>paraview</strong>.org</a>).</p> <p>The CT data used for the mesh is available as a separate dataset:</p> <p>This data was used originally for the following publications (please cite if re-using the data):<br> Ll.M. Evans, L. Margetts, P.D. Lee, C.A.M. Butler, E. Surrey, “Image based in silico characterisation of the effective thermal properties of a graphite foam”, Carbon, Vol. 143, pp. 542-558, 2018. <a href="https://doi.org/10.1016/j.carbon.2018.10.031">https://doi.org/10.1016/j.carbon.2018.10.031</a></p> <p>Ll.M. Evans, L. Margetts, P.D. Lee, C.A.M. Butler, E. Surrey, “Improving modelling of complex geometries in novel materials using 3D imaging”, Proceedings of NEA International Workshop on Structural Materials for Innovative Nuclear Systems, Manchester, UK, July 2016. <a href="https://www.oecd-nea.org/science/smins4/documents/P1-18_LlME_SMINS4_paper_reviewed.pdf">https://www.oecd-nea.org/science/smins4/documents/P1-18_LlME_SMINS4_paper_reviewed.pdf</a></p>
X-ray tomography image data of a graphite foam block (KFoam) and tortuosity analysis
<p>X-ray tomography (CT) image data of a graphite foam block (KFoam). The 3D image was generated with an X-ray tomography scan performed by Dr Llion Evans with Manchester X-ray Imaging Facility equipment, which was funded in part by the EPSRC (grants EP/F007906/1, EP/F001452/1 and EP/I02249X/1).</p> <p>The dataset includes: raw radiographs; scan & reconstruction parameter settings file; reconstructed 3D volume. To visualise the 3D volume use software such as ImageJ (https://imagej.net/Fiji/Downloads). The volume image data (NMT_15_229_LLME_DivInterlayer.raw) is in binary format and has the following characteristics: 1586 x 1567 x 1588; 8-bit; little-endian byte order.</p> <p>The second .zip file is a 200 x 200 x 200 subset of this dataset. This was used to perform a tortuosity analysis on the foam. This dataset includes three sets of tiff images; tomographic slices; binarised slices; skeletonised slices. It also includes an excel file with the results of the tortuosity analysis performed with ImageJ.</p> <p>This data was used originally for the following publications (please cite if re-using the data):</p> <p>Ll.M. Evans, L. Margetts, P.D. Lee, C.A.M. Butler, E. Surrey, “Image based in silico characterisation of the effective thermal properties of a graphite foam”, Carbon, Vol. 143, pp. 542-558, 2018. <a href="https://doi.org/10.1016/j.carbon.2018.10.031">https://doi.org/10.1016/j.carbon.2018.10.031</a></p> <p>Ll.M. Evans, L. Margetts, P.D. Lee, C.A.M. Butler, E. Surrey, “Improving modelling of complex geometries in novel materials using 3D imaging”, Proceedings of NEA International Workshop on Structural Materials for Innovative Nuclear Systems, Manchester, UK, July 2016. <a href="https://www.oecd-nea.org/science/smins4/documents/P1-18_LlME_SMINS4_paper_reviewed.pdf">https://www.oecd-nea.org/science/smins4/documents/P1-18_LlME_SMINS4_paper_reviewed.pdf</a></p>
Pipe rheology of wet aqueous application foams
<p>Foam application of chemicals to the wet web is currently being developed for the paper and board industry. An important part of this work is to understand the rheology of the used application foams. Polyvinyl alcohol (PVOH) is widely used as a strength additive in paper and board, and it was the main surfactant in this study. The PVOH foam density varied between 100 kg/m<sup>3</sup> and 300 kg/m<sup>3</sup> and the dosage of PVOH varied between 0.5% to 6%. The foam viscosity and slip flow were determined with a pipe rheometer using three pipe diameters. The slip velocity was quantified by recording the foam motion in the vicinity of the wall of an acrylic pipe with a high-speed video camera. A measurement setup was also built for measuring the slip flow indirectly in opaque pipes. General formulas for the foam viscosity and slip flow, based on several physical quantities describing both the foam and the base liquid, were obtained using dimensional analysis. Specifically, dimensionless shear stress and dimensionless wall shear stress were found to be proportional to certain powers of the capillary number and slip capillary number, respectively. The contribution of the slip flow to the total flow rate was significant, especially with lower flow rates when most of the volumetric flow was due to the slip. In the literature, many papers have suggested that there is no slip flow in steel pipes. Our results suggest that this is due to the high pipe roughness used in those works. In our measurements, the slip velocity of a smooth-walled steel pipe was equal to the slip in an acrylic pipe. The obtained viscosity and slip models form a solid basis for developing and running various industrial processes including foam application processes. For new foam recipes, quite a small number of rheological measurements are needed to determine the model parameters.</p>
Data from: Exploring rainforest diversification using demographic model testing in the African foam-nest treefrog (Chiromantis rufescens)
Open the record for dataset details and reuse information.
Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Foam Insulation of Soil, 2014-2015
The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. For this specific experiment we asked whether foam could be used to insulate the soil in the Fall season when there is no snow.
Foam fractionation for removal of per- and polyfluoroalkyl substances: Towards closing the mass balance
<p>This data is associated with the publication <em><span>Foam fractionation for removal of per- and polyfluoroalkyl substances: Towards closing the mass balance</span></em><span><em>:</em> </span><span><a>https://doi.org/10.1016/j.scitotenv.2023.162050. </a></span></p>
Raw NMR and GC reports for the article Electrochemical Hydrogenation of Alkenes over a Nickel Foam Guided by Life Cycle, Safety and Toxicological Assessments, Green Chemistry, doi: https://doi.org/10.1039/D4GC02924K
<p>Raw NMR for the article Electrochemical Hydrogenation of Alkenes over a Nickel Foam Guided by Life Cycle, Safety and Toxicological Assessments, Green Chemistry, doi: https://doi.org/10.1039/D4GC02924K</p> <p>The raw NMR data files for all compounds reported in the article are included. The numbering corresponds to those in the article.</p> <p>Each parent folder contains subfolders with different files. In order to process this data, the full parent folder must be dragged into either Mestrenova or Topspin and then the data is automatically processed. If the name of the raw data files are renamed, the software (<a href="https://mestrelab.com/" target="_blank" rel="noopener noreferrer">Mestrenova</a> or <a href="https://www.bruker.com/en/products-and-solutions/mr/nmr-software/topspin.html" target="_blank" rel="noopener noreferrer">Topspin</a>) will not be able to process the files</p> <p> </p>
Frog nest foams exhibit pharmaceutical foam-like properties
<p>Foams have frequently been used as systems for the delivery of cosmetic and therapeutic molecules; however, there is high variability in the foamability and long-term stability of synthetic foams. The development of pharmaceutical foams that exhibit desirable foaming properties, delivering appropriate amounts of the active pharmaceutical ingredient (API) and that have excellent biocompatibility is of great interest. The production of stable foams is rare in the natural world; however, certain species of frogs have adopted foam production as a means of providing a protective environment for their eggs and larvae from a predators and parasites, to prevent desiccation, to control gaseous exchange, temperature extremes, and to reduce UV damage. These foams show great stability (up to 10 days in tropical environments) and are highly biocompatible due to the sensitive nature of amphibian skin. This work demonstrates for the first time, that nests of the Túngara frog (<i>Engystomops pustulosus</i>) is stable <i>ex situ</i> with useful physiochemical and biocompatible properties and is capable of encapsulating a range of compounds, including antibiotics. These protein foam mixtures share some properties with pharmaceutical foams and may find utility in a range of pharmaceutical applications such as a topical drug delivery systems (DDS).</p>
Possibly pathogenic bacteria in aerosols and foams as a result of aeration remediation in a polluted urban waterway
<p>Dataset for samples collected in Newtown Creek between 2019 and 2022. </p>
Tolerability of a Foaming Facial Cleanser and Moisturizer SPF 30 in a Pediatric Population (7-11) With Acne Prone Skin.
ClinicalTrials.gov study NCT01909713. IPD Sharing: Not stated. Countries: 1. Publications: 1.
LEO 90100 Aerosol Foam Compared to Calcipotriol Plus Betamethasone Dipropionate Gel in Subjects With Psoriasis Vulgaris
ClinicalTrials.gov study NCT02132936. IPD Sharing: NO. Countries: 1. Publications: 4.
Silicone Adhesive Multilayer Foam Dressings to Prevent Pressure Ulcer
ClinicalTrials.gov study NCT03442777. IPD Sharing: YES. Countries: 1. Publications: 1.
Effects of Post-Match Foam Rolling, Static Stretching, and Passive Rest on Acute Cardiac-Autonomic, Hemodynamic, and Neuromuscular Recovery in National Wrestlers
ClinicalTrials.gov study NCT07305506. IPD Sharing: NO. Countries: 1. Publications: 7.
The Role of Antimicrobial Foam Dressing in Prevention of Cesarean Section Wound Complications
ClinicalTrials.gov study NCT03136159. IPD Sharing: NO. Countries: 1. Publications: 22.
Efficacy and Safety Study of Polidocanol Injectable Foam for the Treatment of Saphenofemoral Junction (SFJ) Incompetence
ClinicalTrials.gov study NCT01072877. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Safety and Efficacy of Azelaic Acid Foam, 15 % in Papulopustular Rosacea
ClinicalTrials.gov study NCT01555463. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Randomized, Single Blind, Placebo Controlled, to Evaluate Efficacy and Safety of Polidocanol Injectable Foam for Treatment of Symptomatic, Visible Varicose Veins With SFJ Incompetence
ClinicalTrials.gov study NCT00758420. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Wet Time for a Foam Hand Sanitizer
ClinicalTrials.gov study NCT05740332. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Efficacy and Safety of Budesonide Foam for Participants With Active Mild to Moderate Ulcerative Proctitis or Proctosigmoiditis
ClinicalTrials.gov study NCT01008410. IPD Sharing: Not stated. Countries: 1. Publications: 2.
A Study to Evaluate the Safety and Efficacy of Tazarotene Foam, 0.1%, in Subjects With Common Facial Acne - W0260-301
ClinicalTrials.gov study NCT01017146. IPD Sharing: YES. Countries: 2. Publications: 1.
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International Brain Laboratory public data
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OpenNeuro
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