Contributors: YUAN WANG, Mingyuan Gao
... This dataset contains unprocessed data of two different setups of multi-stable VEH. The HG-C1400 (Panasonic Inc.) laser displacement meter was used to detect the displacement of the suspended magnet, and the tripod was used to fix the laser sensor. The laser sensor is powered by a DC-DC power supply. The quad-stable VEH was attached to a vibrating table, preferably horizontally settled to eliminate the effects of gravity. Sinusoidal excitation and frequency sweep tests (From 5Hz to 20Hz) were performed. The vibration test standard refers to IEC60068-2-6.
Data/Software for "Presynaptic Mitochondria Volumes and Complexity of Subsynaptic Distribution Increase During Development at a High-fidelity Synapse"
Contributors: Connon I. Thomas, Christian Keine, Satoko Okayama, Rachel Satterfield, Morgan Musgrove, Debbie Guerrero-Given, Naomi Kamasawa, Samuel M. Young, Jr.
... Contains data and software from the publication: "Presynaptic Mitochondria Volumes and Complexity of Subsynaptic Distribution Increase During Development at a High-fidelity Synapse" currently under review. The preprint to this data set has been published on bioRxiv (https://doi.org/10.1101/689653). In this study, we created a helper-dependent adenoviral vector (HdAd) to co-express cytoplasmic EGFP and a genetically encoded peroxidase marker (mito-APEX2) at the calyx of Held, an excellent model for deciphering regulatory mechanisms of presynaptic function. ABSTRACT: The calyx of Held, a large glutamatergic presynaptic terminal in the auditory brainstem undergoes developmental changes to support the high action-potential firing rates required for auditory information encoding. In addition, calyx terminals are morphologically diverse which impacts vesicle release properties and synaptic plasticity. Mitochondria influence synaptic plasticity through calcium buffering and are crucial for providing the energy required for synaptic transmission. Therefore, it has been postulated that mitochondrial levels increase during development and contribute to the morphological-functional diversity in the mature calyx. However, the developmental profile of mitochondrial volumes and subsynaptic distribution at the calyx of Held remains unclear. To provide insight on this, we developed a helper-dependent adenoviral vector (HdAd) that expresses the genetically encoded peroxidase marker for mitochondria, mito-APEX, at the mouse calyx of Held. We developed protocols to detect labeled mitochondria for use serial block face SEM (SBF-SEM) to carry out semi-automated segmentation of mitochondria, high-throughput whole terminal reconstruction and presynaptic ultrastructure in mice of either sex. Subsequently, we measured mitochondrial volumes and subsynaptic distributions at the immature postnatal day 7 (P7) and the mature (P21) calyx. We found an increase of mitochondria volumes in terminals and axons from P7 to P21 but did not observe differences between stalk and swelling subcompartments in the mature calyx. Based on these findings, we propose that mitochondrial volumes developmentally increase to support high firing rates but have limited contribution to morphological-functional diversity at the calyx. Data are sorted by the figures they appear in. Media (movies and 3D models) and custom-written software are located in separate folders.
Forming Textured Hydrophobic Surface Coatings via Mixed Wax Emulsion Impregnation and Drying of Poplar Wood
Contributors: Cong Chen, Wang Wang
... Some original data and video are provided.
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Contributors: UnaElsLive Natra, mdgmatest5 live
... RDM - File Type Support 21May2019 ElsCustomer Apart from .u3d all files preview [ .obj / .ply / .vtk / .stl / .ent / .brk / .pdb / .pse / .mol / .mol2 / .cif / .u3d / .dcm / .nii] - .pse is not supported
Contributors: Miguel Angel Gonzales Calle
... The experimental data of crushing test in miniature web girder is here presented. This experimental data includes the force displacement data, video and setup images. The web girder was made by additive manufacturing in stainless steel 316L. The experimental test is a reproduction in reduced scale of an large-scale crushing test of a web girder structure made by ASIS in the nineties. The force displacement of the large-scale reference test was also included. True strain-stress curves obtained from tensile tests in additively manufactured samples are also included.
Contributors: Carlos Palacio
... Raw data for the internal Project 2016210 "Preparation and characterization of magnetic nanoparticles based in ferrites"--> UAN-UdeA.
Contributors: Prashant Jha, Robert Lipton
... We share the data used in publishing the article "Numerical convergence of finite difference approximations for state based peridynamic fracture models", see https://doi.org/10.1016/j.cma.2019.03.024. The data set comprises of raw data produced by computational code, post-processed files, and python script files. We consider finite difference approximation of a nonlinear state-based peridynamic model. We run simulation for two problems. In the first problem, we have a square domain with verticle pre-crack originating from the middle of the bottom edge. We apply a constant velocity boundary condition along the horizontal axis on the bottom layer. In response to the boundary conditions, the crack propagates vertically. The data correspond to three different horizons, 2mm, 4mm, and 8mm. For each horizon, we have three results, each corresponding to mesh size horizon/2, horizon/4, and horizon/8. From the approximate displacement fields, we compute the rate of convergence with respect to mesh size, for each fixed horizon. These are post-processed data and can be found in "postprocessing" folder of Example 1. In the second problem, we consider a rectangle domain which is supported at two regions (left and right) near the bottom edge. On the portion of the top edge, we apply a monotonically increasing in time force in the downward direction. We run simulation when the sample has just one vertical pre-crack originating from the middle of the bottom edge and when the sample has two vertical pre-cracks symmetrically located and originating from the bottom edge. We plot the damage at multiple times and show that the crack propagates upwards in response to applied load. All computations are carried out using an in-house developed code. In this data set, we have not shared the computational code. However, we plan on making the code public in the future. If you are interested in our code and if you have some collaborative ideas please feel free to get in touch.
Contributors: Nassr Alsaeedi
... Non-frontal video recording for left eye monitoring inside VR-headset to detect eyeblinks. Additionally, an annotation file was attached. the annotation file could be used to evaluate future similar algorithms
Contributors: Victor Nazimko
... Results of testing of a yield frame support having synchronized clutches. Testing of the frames in situ and in a laboratory showed that opposite clutches yield by turn, one after another that is compliant with thermodynamics of irreversible processes. Such behavior causes blocking of the clutches, longitudinal twist of frame profile, its plastic deformation, breaking of the clutch components, asymmetrical yield of the clutches, buckling and shifting of the frames, what reduces their bearing capacity. Synchronization of the opposite clutches yielding is a key solution to provide stable operation of the frame saving and maintaining their bearing capacity. Synchronization of the opposite clutches was provided using a flexible link, for example, steel rope joining opposite clutches. New frame design proved to be much more efficient than a traditional prototype frame equipped with independent clutches. SC always demonstrated practically the same yield and synchronous paths of pliancy. Yield of SC occurred by smaller portions, average value of which was 1.962±2.29 mm, whereas corresponding elementary yield of IC extended to 6.641±6.7 mm, what increased probability of clutches blocking and destroying. Possibility of the IC jamming increases additionally because standard deviation of IC yield exceeds 100%, whereas standard deviation of SC yield in four tests was 0.43% only. Average resistance of the frame equipped with SC was 1.23 times more in comparison with IC prototype. Irreversible work of the SC resistance was 1.73 times more than corresponding work of IC. In addition, SC facilitate stable operation of the frame because variance of its resistance is 20% versus 67% for the frame having IC, and variance of the work is 10% for SC versus 50% for IC. The most important advantage is that weak but specific action of a frame equipped with SC induces strong interactions among blocking rock fragments, which produce self-supporting effect that increases stability of underground roadway.
Contributors: Pushkar Kulkarni, Yogeeswari Perumal, Rita Rani, Raghavender Medishetti, DRILS Hyderabad, Shubham Dwivedi
... All the files attached here are described in the Supplementary Information PDF.