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746 results for “Powder”
Device for making powder in starch capsules
ID no.: KGZ 863 Time of creation: 19th/20th century Museum: The Museum of Pharmacy at the Jagiellonian University Medical College in Kraków https://muzea.malopolska.pl/en/objects-list/1971 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
Pharmacy tin for powdered hartshorn
ID no.: KGZ 3780 Museum: The Museum of Pharmacy at the Jagiellonian University Medical College in Kraków https://muzea.malopolska.pl/en/objects-list/1718 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
Powder River Fish Community Dataset
<p>Dataset accompanying "Functional turnover and fish-community trends over 130 years in a prairie watershed" by Niall G. Clancy, Jonathan A. McFarland, Megan G. Ahern, and Annika W. Walters.</p><p>Column descriptors are included as a note in the Excel file.</p>
Dataset for "Mix and measure - combining in situ X-ray powder diffraction and microtomography for accurate hydrating cement studies" paper
<p>Dataset for paper (doi: <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.cemconres.2023.107370" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.cemconres.2023.107370</a>) with the abstract: "It is reported an innovative methodology based on in situ MoKa1 laboratory X-ray powder diffraction (LXRPD) and microtomography (μCT) avoiding any sample conditioning. The pastes are injected in 2.0 mm capillaries and the extremes are just sealed. The measurements take place in the same region of the hydrating paste. Thick capillaries are key to avoiding self-desiccation, which dictates the need of high-energy X-ray radiation for the diffraction study. This approach has been tested with a PC 42.5 R paste having w/c=0.50. μCT data were collected at 12 hours and 1, 3, 7 and 79 days. LXRPD data were acquired at 1, 3, 7 and 77 days. In this proof-of-principle research, the same paste was also cured ex situ. Portlandite contents obtained by thermal analysis, ex situ powder diffraction, in situ mass balance calculation and in situ powder diffraction were 13.8, 13.1, 13.1 and 12.5 wt%, respectively. From the μCT study, the grey value histogram evolution with time showed a crossing point which allowed us to distinguish (appearing) hydrated products from (dissolving) unhydrated cement particles. Segmentations were carried out by global thresholding and the random forest approach (one type of supervised Machine Learning). The comparison of the segmented results for the unhydrated cement fraction and the Rietveld quantitative phase analysis outputs gave an agreement of 2%. The potential of this methodology to deal with more complex binders is also presented."</p>
Raw Data and Codes for the Article "Ultrafast and persistent photoinduced phase transition at room temperature monitored by streaming powder diffraction"
<p>Dataset for the article "Ultrafast and persistent photoinduced phase transition at room temperature monitored by streaming powder diffraction", containing:</p><ul><li>The data and the codes used to generate the figures</li><li>The raw data used for the study, and the codes to analyze it, from raw diffraction images to refinement parameters</li></ul>
Powder by Houbigant
ID no.: FZRS/76 Museum: Collection of the Sosenko Family Foundation https://muzea.malopolska.pl/en/objects-list/1687 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
Powder by L.T. Piver
ID no. FZRS/74 Museum: Collection of the Sosenko Family Foundation https://muzea.malopolska.pl/en/objects-list/1689 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
Rosedale powder stores
The remains of the explosives stores at Rosedale East Mines. The hollow on the left would be the main gunpowder store, surrounded by earth banks to minimise the impact of any explosion. The remains of the building on the right were the office where miners would buy their daily gunpowder and candles before venturing into the mines for their shift. The building's original vaulted brick roof can be seen in the photo below  Source: Objaverse 1.0 / Sketchfab
Manufacturing of high strength and high conductivity copper with laser powder bed fusion
<p>Additive manufacturing (AM), known as 3D printing, enables rapid fabrication of geometrically complex copper (Cu) components for electrical conduction and heat management applications. However, pure Cu or Cu alloys produced by 3D printing often suffer from either low strength or low conductivity at room and elevated temperatures. Here, we demonstrate a design strategy for 3D printing of high strength, high conductivity Cu by uniformly dispersing a minor portion of lanthanum hexaboride (LaB<sub>6</sub>) nanoparticles in pure Cu through laser powder bed fusion (L-PBF). We show that trace additions of LaB<sub>6</sub> to pure Cu result in an improved L-PBF processability, an enhanced strength, and improved thermal stability, all whilst maintaining a high conductivity. The presented strategy could expand the applicability of 3D-printed Cu components to more demanding conditions where high strength, high conductivity, and thermal stability are required.</p>
X-ray powder diffraction patterns of Bi2-xSbxTe3 (x=0, 0.2, 0.5, 1.5, 1.8, 2.0) nanoparticles
<p>The data set contains X-ray powder diffraction patterns of Bi<sub>2-x</sub>Sb<sub>x</sub>Te<sub>3</sub> (x=0, 0.2, 0.5, 1.5, 1.8, 2.0) nanoparticles, synthesized utilizing microwave-assisted heating. Diffraction data were collected at room temperature using a benchtop Rigaku MiniFlex 600 diffractometer with Bragg-Brentano θ-2θ geometry. An X-ray tube with a copper anode (Cu Kα radiation, λ =1.5418 Å), operated at U = 40 kV and I = 15 mA, was used as a source. Bi<sub>2</sub>Te<sub>3</sub> and Sb<sub>2</sub>Te<sub>3</sub> are isostructural and crystallize in a rhombohedral crystal system with the space group R-3m (No. 166).</p> <p> </p>
Material Dependent Influence of Ring/Spot Beam Profiles in Laser Powder Bed Fusion
<p>Raw data associated with a paper submission.<br>"Material Dependent Influence of Ring/Spot Beam Profiles in Laser Powder Bed Fusion"</p> <p>Contained are all the Matlab scripts used for the simulations, as well as csv's of any data plotted in graphs.</p>
Supplementary materials for "Operando phase mapping in multi-material laser powder bed fusion"
<p>This dataset includes the experimental data for the paper: "Operando phase mapping in multi-material laser powder bed fusion" by S. Sumarli, F. Malamud, S. Van Petegem, S. Gaudez, A. Baganis, M. Busi, E. Polatidis, C. Leinenbach, R. Logé, and M. Strobl. For more information, see the "Open data structure.pdf" file.</p>
Pyzoflex technology testing for powder flow monitoring
<p>These data represent a signal collection from the Pyzoflex(R) sensor when exposed to diverse amounts of powder driven by Argon gas flow, to be used in the laser cladding process.</p>
Selective laser melting process of tool steel powder
<p>The video demonstrates one of the most commercialised powder bed fusion techniques of additive manufacturing, the Selective Laser Melting (SLM). Tool steel powder (Gas atomized ASP2023®) is processed using a a commercial SLM instrument (AconityMINI). During the SLM process, the powder is delivered to the pre-heated powder bed through the powder delivery system and then selectively melted using the laser beam in a chamber filled with argon (see attached figure about the chamber and the key parts of the process). The delivered powder particles are solidified to form layers, as the process continues until the desired three-dimensional component is fabricated. </p>
X-ray powder diffraction data of a dried Pepto-Bismol suspension (bismuth subsalicylate) collected at ambient temperature
<p>PXRD data of dried Pepto-Bismol suspension loaded in a Kapton tube. Data collected under ambient conditions. Calibrated wavelength = 0.458092 Å.</p> <p>Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.</p>
Dataset: Determination of Broadband Complex EM Parameters of Powdered Materials Part B: Ilmenite-Bearing Lunar Analogue Materials
<p>Data from Determination of Broadband Complex EM Parameters of Powdered Materials Part B: Ilmenite-Bearing Lunar Analogue Materials</p>
Dataset: Determination of Broadband Complex EM Parameters of Powdered Materials Part A: MCMC-based Two-Port Transmission Line Measurements
<p>Data from Determination of Broadband Complex EM Parameters of Powdered Materials Part A: MCMC-based Two-Port Transmission Line Measurements.</p>
Granular piston-probing in microgravity: powder compression, from densification to jamming
<p>The datasets represents all data used in the article "Granular piston-probing in microgravity: powder compression, from densification to jamming", by Olfa D'Angelo, Anabelle Horb, Aidan Cowley, Matthias Sperl, and W. Till Kranz, published in npj Microgravity (2022).</p>
Thermal conductivity of powdered quartz at various temperatures
<p><strong>Thermal conductivity of powdered quartz at various temperatures</strong></p> <p>Junjie Chen</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p> </p> <p>A powder is a dry, bulk solid composed of many very fine particles that may flow freely when shaken or tilted. Powders are a special sub-class of granular materials, although the terms powder and granular are sometimes used to distinguish separate classes of material. In particular, powders refer to those granular materials that have the finer grain sizes, and that therefore have a greater tendency to form clumps when flowing. Granular refers to the coarser granular materials that do not tend to form clumps except when wet. Typically, a powder can be compacted or loosened into a vastly larger range of bulk densities than can a coarser granular material. When deposited by sprinkling, a powder may be very light and fluffy. When vibrated or compressed it may become very dense and even lose its ability to flow. The bulk density of coarse sand, on the other hand, does not vary over an appreciable range. The clumping behavior of a powder arises because of the molecular Van der Waals force that causes individual grains to cling to one another. This force is present not just in powders, but in sand and gravel, too. However, in such coarse granular materials the weight and the inertia of the individual grains are much larger than the very weak Van der Waals forces, and therefore the tiny clinging between grains does not have a dominant effect on the bulk behavior of the material. Only when the grains are very small and lightweight does the Van der Waals force become predominant, causing the material to clump like a powder. The cross-oversize between flow conditions and stick conditions can be determined by simple experimentation. Many other powder behaviors are common to all granular materials. These include segregation, stratification, jamming and unjamming, fragility, loss of kinetic energy, frictional shearing, compaction and Reynolds' dilatancy.</p> <p> </p> <p>Thermodynamic temperature (degrees kelvin), Thermal conductivity (watts per meter-kelvin)</p> <p>373.2 0.178</p> <p>483.2 0.184</p> <p>588.2 0.209</p> <p>673.2 0.23</p> <p>723.2 0.259</p>
Glaisdale Powder House
The remains of an explosives magazine for the adjacent ironstone mine may be seen in a field just below the Arncliffe Arms pub at Carr End, Glaisdale. The red and yellow brick structure had a pyramidal roof that has now collapsed. This model records the condition of the structure in June 2018. Ironstone mines opened at Glaisdale from 1865 and an ironworks was established from 1868. The ironstone found was, however, of poor quality and the same seams that were near the surface at Grosmont had to be reached by a 77m (254ft) deep shaft at Glaisdale. A further mine 3km (2 miles) up Glaisdale dale exploited a higher seam but that was also poor quality and was brought in using a tunnel under the village and trestle bridge across the river. The Glaisdale venture struggled from the outset and in 1875 the ironworks closed. In the mines, the ironstone was drilled and blasted from the seam face so the Powder House was built to keep the gunpowder in dry and secure conditions close by. Source: Objaverse 1.0 / Sketchfab
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.