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Psychochemical properties and bioactivity of biogenic nano-hydroxyapatite derived from scallop shell waste
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Рис. 8. Характер фрагментации и сохранности створок устрицы (Crassostrea gigas) иЗ раскопа 2 (фракция крупных фагментов). Fig. 8. Fragmentation and preservation patterns of valves of the giant oyster (Crassostrea gigas) from excavation 2 (fraction of large fragments). in Mollusks from the shell-midden of the Telyakovskogo 2 site in southern Primorye (Yankovskaya culture), their paleoecology and role in paleoeconomy
Рис. 8. Характер фрагментации и сохранности створок устрицы (Crassostrea gigas) иЗ раскопа 2 (фракция крупных фагментов). Fig. 8. Fragmentation and preservation patterns of valves of the giant oyster (Crassostrea gigas) from excavation 2 (fraction of large fragments).
Fig. 4 in Shell Morphology, Growth Pattern And Population Dynamics Of The Land Snail Xerolenta Obvia (Menke, 1828) In Two Areas Of Different Climatic Conditions Within A Temperate Climate Region
Fig. 4. Average monthly whorl increment of Xerolenta obvia at different stages of growth in SW (diamonds with the solid trend line) and NE (squares with the dashed trend line) populations
Fig. 1 in Shell Morphology, Growth Pattern And Population Dynamics Of The Land Snail Xerolenta Obvia (Menke, 1828) In Two Areas Of Different Climatic Conditions Within A Temperate Climate Region
Fig. 1. Shell size differences of Xerolenta obvia at different stage of growth in SW (filled symbols) and NE (empty symbols) populations; diamonds = mean shell width, triangles = mean shell height, lines = range of size
Fig. 3 in Shell Morphology, Growth Pattern And Population Dynamics Of The Land Snail Xerolenta Obvia (Menke, 1828) In Two Areas Of Different Climatic Conditions Within A Temperate Climate Region
Fig. 3. Relative distribution of size classes (I–VI) over the whole activity period studied in SW (A) and NE (B) populations of Xerolenta obvia
Data set for displacement-based multi-modal formulation of Koiter's method applied to cylindrical shells
<p>These results complement the results reported in the AIAA SciTech 2022 publication "Displacement-based multi-modal formulation of Koiter's method applied to cylindrical shells", presented in the Special Session in Honor of Prof. Dr. Johann Arbocz.</p> <p>A preprint of is already available as:</p> <blockquote> <p>Castro SGP, Jansen E. Displacement-based multi-modal formulation of Koiter's method applied to cylindrical shells. EngrXiv Preprints, 2021. <a href="https://doi.org/10.31224/osf.io/92xvf">doi:10.31224/osf.io/92xvf</a>.</p> </blockquote> <p>The results are generated using the bfsccylinder module version 0.3.12, see file <a href="https://zenodo.org/record/5667978/files/bfsccylinder-0.3.12.zip">bfsccylinder-0.3.12.zip</a>, also available in PyPi (<a href="https://pypi.org/project/bfsccylinder/">https://pypi.org/project/bfsccylinder/</a>). The composites module is also needed, see file <a href="https://zenodo.org/record/5667978/files/composites-0.4.18.zip">composites-0.4.18.zip</a>, also available in PyPi (<a href="https://pypi.org/project/composites/">https://pypi.org/project/composites/</a>).</p> <p> </p> <p><strong>Main analysis scripts:</strong></p> <p><a href="https://zenodo.org/record/5667978/files/koiter_cylinder_von_Karman.py?download=1">koiter_cylinder_von_Karman.py</a> has the analysis function using Donnell-type or Von Kárman-type shell kinematics.</p> <p><a href="https://zenodo.org/record/5667978/files/koiter_cylinder_Sanders.py">koiter_cylinder_Sanders.py</a> has the analysis function using Sanders-type shell kinematics.</p> <p> </p> <p><strong>Verification case: Water's composite cylindrical shell</strong></p> <p><a href="https://zenodo.org/record/5667978/files/v00_DIANA_Waters_shell.zip">v00_DIANA_Waters_shell.zip</a> reference results obtained with a converged model using DIANA Q40L elements</p> <p><a href="https://zenodo.org/record/5667978/files/v00_Waters_composite_cylindrical_shell_sanders.py">v00_Waters_composite_cylindrical_shell_sanders.py</a> script to run the verification case</p> <p><a href="https://zenodo.org/record/5667978/files/v00_Waters_composite_cylindrical_shell_sanders.results">v00_Waters_composite_cylindrical_shell_sanders.result</a> results saved in an object file saved using Pickle, can be loaded with `pickle.load()`</p> <p><a href="https://zenodo.org/record/5667978/files/v00_Waters_composite_cylindrical_shell_sanders_b_ijkl.txt">v00_Waters_composite_cylindrical_shell_sanders_b_ijkl.txt</a> b_ijkl coefficients for this case, with 10 modes in the Koiter expansion</p> <p><a href="https://zenodo.org/record/5667978/files/v00_Waters_composite_cylindrical_shell_sanders_output.txt">v00_Waters_composite_cylindrical_shell_sanders_output.txt</a> printed output</p> <p> </p> <p> </p> <p> </p>
Rigid Shell Rolling on a Dimpled Bowl-shaped Rigid Surface Example 1
<p>The computations use zero-mass particles--the first use of such particles in nonrelativistic classical mechanics—to perform these animations.</p> <p>The four animation files deal with simulations for Cases A, B, C, and D of Example 1, in the above-mentioned paper in the Special Issue. Each file shows an animation for 25 s of the shell rolling on the surface, without slipping. Each animation shows the dimpled surface and the complex motion of the shell as it finds its path over the dimpled surface.</p> <p>The different cases (A to D) relate to the different orientations of the non-uniform shell at the start of the animation with respect to the surface. At the beginning of each animation the shell is shown for a few extra seconds so that its initial orientation can be observed. The location of the point on the sphere that touches the surface at the start of the animation is the same for all the 4 different animations; the initial velocity of the geometric center of the shell is also the same in all the animations.</p> <p>As seen, the motion of the non-uniform shell and the path it takes on the surface is highly sensitive to its orientation at the start of the animation with respect to the surface. The motion of the shell, when slowed down in these animations, can be seen to be extremely complex as it traverses the surface.</p> <p>For details of each case (A to D) see the paper.</p>
1920s Shell Pumps
In Bodie California Source: Objaverse 1.0 / Sketchfab
Data of "Mix design optimisation of self-sealing concrete containing microcapsules with polyurethane shell and water repellent cargo"
<p>Dataset for the paper "Mix design optimisation of self-sealing concrete containing microcapsules with polyurethane shell and water repellent cargo"</p>
Identifying environmental drivers of shell shape variation in the freshwater gastropod Campeloma decisum
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Figure 20 in Recognising variability in the shells of argonauts (Cephalopoda: Argonautidae): the key to resolving the taxonomy of the family
Figure 20. Scanning electron microscope images of Argonauta nouryi shell displaying variation in shell thickness: a–b, scanning electron microscope images of shell cross-sections (SBMNH 357476) across shell repairs (R) representing a shift from Type 1 (T1) to Type 2 (T2) shell formation; a, lateral face of shell, inner surface facing up; b, keel, outer surface facing up. Scale bars = 1 mm.
Figure 14 in Recognising variability in the shells of argonauts (Cephalopoda: Argonautidae): the key to resolving the taxonomy of the family
Figure 14. Argonauta nouryi shell displaying two changes in shell formation type: a–d, four perspectives of shell #72 (55.4 mm shell length, SBMNH 345766) displaying two changes from Type 1 (T1) to Type 2 (T2) shell formation and back to Type 1; a, right lateral view; b, left lateral view; c, oblique left lateral view; d, close-up oblique left lateral view. Scale bar = 1 cm.
Figure 1 in Recognising variability in the shells of argonauts (Cephalopoda: Argonautidae): the key to resolving the taxonomy of the family
Figure 1. Live female argonaut (Argonauta argo) observed swimming close to the ocean surface and holding her white paper nautilus shell that functions as a brood chamber for the female's eggs and as a hydrostatic structure for maintaining neutral buoyancy.
Data for "Integrating high-resolution Sr/Ca and ultrastructural analyses of the Tridacna squamosa shell to reconstruct sub-daily seawater temperature variation"
<p>This repository contains all data generated for the publication "Integrating high-resolution Sr/Ca and ultrastructural analyses of the Tridacna squamosa shell to reconstruct sub-daily seawater temperature variation" currently under review</p>
Fig. 1 in Chlorophyll-a and Suspended Inorganic Material Affecting the Shell Traits of Testate Amoebae Community
Fig. 1. Study area and location of the sampling stations in the upper Paraná River floodplain: PAR – Paraná River, OSM – Osmar Lake, PAU – Pau Véio Backwater, GAR – Garças Lake, BAI – Baía River, GUA – Guaraná Lake, FEC – Fechada Lake, IVI – Ivinhema River, PAT – Patos Lake, VEN – Ventura Lake.
FIGURE 2 in Computational fluid dynamics modeling of fossil ammonoid shells
FIGURE 2. All of the shells employed in this study plotted in Westermann morphospace. The 3D models used for each member are shown to the right of the name/designation in the legend. Cardioceras, Oppelia, and Sphenodiscus are based on the shells employed in Jacobs (1992), Nautilus pompelius was created using laser scans and scaled to two different sizes (life-size [approx. 14.5 cm] and 5 cm diameter), and all other shells were created to match basic Westermann morphotypes (Westermann, 1996; Ritterbush and Bottjer, 2012).
Fig. 5 in Larval, juvenile and adult Turtonia minuta (Bivalvia: Turtoniidae) and comparative shell morphology of the veneroid and venerid taxa from Peter the Great Bay, Sea of Japan
Fig. 5. Transformative patterns of the veneroid and venerid hinge morphostructures and their common (identically designated) and distinctive features: A – Alveinus ojianus, Peter the Great Bay, 2002; B – Ruditapes philippinarum, Peter the Great Bay, 2004; C – Saxidomus purpurata, Peter the Great Bay, 2004. For other simbols – see Figs. 1 and 4.
Рис. 2. ОбЩаЯ форма первичного продиссоконха (PD-I) и примордиальные морфоструктуры правой створки Turtonia minuta на препаратах световой микроскопии (вынаШиваюЩаЯ капсула, Уссурийский Залив, 2010 г., материалы А.В. ЧерныШова); PD-II – начало формированиЯ вторичного продиссоконха. Остальные условные обоЗначениЯ – см. рис. 1. in Larval, juvenile and adult Turtonia minuta (Bivalvia: Turtoniidae) and comparative shell morphology of the veneroid and venerid taxa from Peter the Great Bay, Sea of Japan
Рис. 2. ОбЩаЯ форма первичного продиссоконха (PD-I) и примордиальные морфоструктуры правой створки Turtonia minuta на препаратах световой микроскопии (вынаШиваюЩаЯ капсула, Уссурийский Залив, 2010 г., материалы А.В. ЧерныШова); PD-II – начало формированиЯ вторичного продиссоконха. Остальные условные обоЗначениЯ – см. рис. 1.
Codes inside shells of low-dimensional integer lattices.
<p>Let <em>S(n,t,k)</em> be the maximum size of a code containing only vectors of the <em>k</em>th shell of the <em>n</em>-dimensional integer lattice such that the inner product between distinct vectors does not exceed <em>t</em>. The file A.pdf contains examples of codes leading to lower bounds for <em>S(n,t,k)</em>, one example for the each lower bound. By <em>(n,k,t,N)</em> we denote a code containing <em>N</em> vectors of the <em>k</em>th shell of the <em>n</em>-dimensional integer lattice such that the inner product between any two different vectors is at most <em>t</em>. The following format to describe example codes is used:</p> <p>— If a code is constructed using a signed permutation group, then a list containing generators of the corresponding group <em>G</em> is given first followed by a list containing used block system and <em>G</em>-orbits forming the code. Each orbit is represented by a list containing orbit representative and an orbit size (in that order). Finally, a code may also contain explicitly added vectors. In this case corresponding list contains two items: a number of explicitly added vectors and an another list containing the vectors.</p> <p>— If a permutation group is used, then the format stays the same except the list containing block system is not present.</p> <p>— Some codes are constructed by scaling spherical codes obtained by <em>Y_n</em> constructions described in [1]. If one part of an example code is constructed by using a signed permutation group, then <em>Y_n</em>-constructed part also utilizes the same block system to describe components of codevectors.</p> <p>— Notation <em>W(n,w)</em> is used to denote a weighing matrix of order <em>n</em> and weight <em>w</em> used to map vectors of a <em>(n,k,t,N)</em>-code into <em>kw</em>th shell of <em>n</em>-dimensional integer lattice to produce a <em>(n,kw,tw,N)</em>-code.</p> <p>The file B.pdf lists some examples of large spherical codes containing vectors from multiple shells. To obtain spherical codes scale given vectors appropiately. If only parameters of a code are given without the construction, then this code is one of the examples given in A.pdf.</p> <p>[1] Ericsson, T.; Zinoviev, V.: Codes on Euclidean Spheres. Elsevier, Amsterdam, 2001.</p>
Fig. 2 in The first record of Conchodytes nipponensis (De Haan, 1844) (Crustacea: Decapoda: Palaemonidae) associated with pen shell Atrina pectinata (Linnaeus, 1767) (Mollusca: Bivalvia) from Korea
Fig. 2. Conchodytes nipponensis, male (cl 8 mm). A. Habitus, dorsal. B. Habitus, lateral. C. Telson and uropod, dorsal. D. Right antennules, ventral. E. Right scaphocerite. Scale bars=1 mm.
ScienceDex guides
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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.