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10,553 results for “measurements”
Dataset for 'Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment'
<p>This dataset includes the VOCs (and expanded uncertainties) as well as VOCs (and expanded uncertainties) used in the PMF model as described in 'Pernov, J. B., Bossi, R., Lebourgeois, T., Nøjgaard, J. K., Holzinger, R., Hjorth, J. L., and Skov, H.: Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment, Atmos. Chem. Phys. Discuss., 2020, 1-36, 10.5194/acp-2020-528, 2020.' </p>
Supplementary materials for "Relative Information Gain: Shannon entropy-based measure of the relative structural conservation in RNA alignments"
<p>Supplementary materials for "Relative Information Gain: Shannon entropy-based measure of the relative structural conservation in RNA alignments". These include precalculated RNA Blocks, MBRs (Matrix of Bear encoded RNA), sPSSMs (structural Position Specific Scoring Matrix), RIG (Relative Information Gain) scores, and plots calculated for 3016 Rfam 14.1 families. In particular:</p> <ul> <li><strong>alignments.zip:</strong> zipped file containing the structural alignments for each Rfam family.</li> <li><strong>RNA_Blocks.zip</strong>: zipped file containing the RNA blocks used to derive different substitution matrices.</li> <li><strong>MBRs.zip</strong>: zipped file containing the substitution matrices.</li> <li><strong>sPSSMs.zip</strong>: zipped file containing the structural Position Specific Scoring Matrices.</li> <li><strong>RIGs.zip</strong>: zipped file containing the RIG scores.</li> <li><strong>entropy.zip</strong>: zipped file containing the (rescaled) entropy.</li> <li><strong>plots.zip</strong>: zipped file containing the plots. </li> </ul> <p>All the scripts to build all these files are available at <a href="https://github.com/helmercitterich-lab/RIG">https://github.com/helmercitterich-lab/RIG</a>.</p>
Measurements of 406 medieval and post-medieval houses in the southern Mani Peninsula, Greece
<p>Data from field recording of domestic house architecture in the southern region of the Mani Peninsula, Greece. Measurements were collected for 406 houses dating to the Middle Byzantine to Ottoman periods (8th to 17th centuries AD), allowing for a better understanding of typical characteristics of the so-called "palaiomaniatika" (or "Old Maniat") architecture that dates to these periods. Additionally, total house counts were obtained for 32 settlements that were able to be mapped in their entirety, providing insight into the typical size of these settlements. A paper interpreting these data, 'The Stone-Built Palaiomaniatika of the Mani Peninsula, Greece,' will be published in the volume <em>Deserted Villages: Perspectives from the Eastern Mediterranean</em>, edited by Rebecca M. Seifried and Deborah Brown Stewart, Digital Press at the University of North Dakota, Grand Forks (forthcoming, 2021). The paper will be linked here after publication.</p> <p>Dr. Seifried collected the data as part of a PhD dissertation completed in 2016 through the Department of Anthropology at the University of Illinois at Chicago, entitled 'Community Organization and Imperial Expansion in a Rural Landscape: The Mani Peninsula, Greece (AD 1000-1821)' (<a href="http://hdl.handle.net/10027/21274">https://hdl.handle.net/10027/21274</a>). Fieldwork was conducted in 2014 and 2016 under the auspices of the 5th Ephorate of Byzantine Antiquities in Sparta and in collaboration with the Diros Project, an archaeological survey and excavation co-directed by Dr. Giorgos Papathanassopoulos and Dr. Anastasia Papathanasiou through the Ephorate of Palaeoanthropology & Speleology of Southern Greece. </p> <p>This research was funded by the National Science Foundation (BCS-1346694), the Marie Sklodowska-Curie Actions (H2020-MSCA-IF-2016 750843), the DigitalGlobe Foundation, the National Cadastre and Mapping Agency, SA (Ktimatologio), ArchaeoLandscapes Europe, the University of Illinois at Chicago.</p>
Monthly values of absolutely measured geomagnetic components (D, I, H, Z, F) of Coimbra observatory in the period1866-2015
<p>Monthly values of the absolutely measured geomagnetic components D, I, H, Z, F for the period 1866-2015 of Coimbra observatory. Different combinations of three magnetic elements were used to fully specify the geomagnetic field vector: the HDI components were measured in 1866-1951; HDZ in 1951-2006; and DIF in 2006-2015. It should also be noted that the monthly values of the first period (1866-1951) are based exclusively on the averages of absolute measurements (made on average 3 per month), while from 1951 onwards the monthly averages were calculated from the hourly averages obtained from the magnetograms after baseline calibration.</p>
Picosecond time-resolved antibunching measures nanoscale exciton motion, annihilation, and true number of chromophores
<p>The particle-like nature of light becomes evident in the photon statistics of fluorescence of single quantum systems as photon antibunching. In multichromophoric systems, exciton diffusion and subsequent annihilation occur. These processes also yield photon antibunching but cannot be interpreted reliably. Here, we develop picosecond time-resolved antibunching (psTRAB) to identify and decode such processes. We use psTRAB to measure the true number of chromophores on well-defined multichromophoric DNA-origami structures, and precisely determine the distance-dependent rates of annihilation between excitons. Further, psTRAB allows us to measure exciton diffusion in mesoscopic H- and J-type conjugated-polymer aggregates. We distinguish between one-dimensional intra-chain and three-dimensional inter-chain exciton diffusion at different times after excitation and determine the disorder-dependent diffusion lengths. Our method provides a new lens through which excitons can be studied at the single-particle level, enabling the rational design of improved excitonic probes such as ultra-bright fluorescent nanoparticles, and materials for optoelectronic devices. Here we demonstrate the raw data of DNA Origami Microscopy on which our findings based on. </p>
MFS-M-00002 Air temperature at 2m measured in a raised bog-ridge, DS18B20 (APIK)
<p>Air temperature at 2m measured in a raised bog ecosystem by DS18B20 (temperature logger), 2018-2019, 30 min frequency, N60.89494 E68.66999, as part of meteorological monitoring in Mukhrino Field Station (https://mukhrinostation.com/).</p>
Conversion of measurements of tree ring gains: Canada, Africa, Mexico, South America from RWL- files to JSON format.
<p>The International Tree Rings Data Bank (ITRDB) is the most comprehensive tree growth database (https://www1.ncdc.noaa.gov/pub/data/paleo/treering).</p> <p>Shoudong Zhao, et al. (2019, 2018) analyzes the representativity of dendrochronological data (ITRDB) and proposes a corrected database with error indications. One of the bottlenecks of data use (ITRDB) is that the data is loaded as a collection of separate files in the Tucson positional format.</p> <p>The purpose of our data presentation is to change the Tucson data format to JSON format and combine the separate files into one.</p> <p>We convert the initial data for the <strong>Canada</strong>, <strong>Africa</strong>, <strong>Mexico</strong> and <strong>Southamerica</strong> rwl-files into Json format of data on tree growth in four files: <strong>canada.json</strong>, <strong>africa.json</strong>, <strong>mexico.json</strong> and <strong>southamerica.json</strong>. The data was converted using the R programming language and the dplR program library Bunn, A. (2008)</p> <p>The experience of developing the structure of dendroclimatic data in JSON format is described in the works of Kachaev A. (2016, 2017, 2020).</p> <p>Description of the structure of JSON data format is attached in the files ReadMe.pdf</p> <p> </p> <p>References</p> <p>Bunn, A. G. (2008). A dendrochronology program library in R (dplR). Dendrochronologia, 26, 115-124. https://doi.org/10.1016/j.dendro.2008.01.002</p> <p>Kachaev, Alexander (2020), "Compact dataset of dendrochronological data of pri-mary metric characteristics of tree rings of Asia.", Mendeley Data, V1, doi: 10.17632 / p9zhpmzgtk.1</p> <p>Kachaev A. V. (2017) Model for describing the structure of dendroclimatic data In the collection: Regional problems of remote sensing of the Earth Materials of the IV international scientific conference. Siberian Federal University, Institute of Space and Information Technologies. p. 120-122. (Russia)</p> <p>Kachaev A. V. (2016) NOSQL Approach for Development of Dendroclimatic Data Bank. In the collection: Regional problems of remote sensing of the Earth. Materials of the III International Scientific Conference. p. 89-91. (Russia)</p> <p>Shoudong Zhao, et al. (2019). The International Tree-Ring Data Bank (ITRDB) revisited: Data availability and global ecological representativity. Journal of Biogeography, 46 (2), 355-368. doi: 10.1111 / jbi.13488</p> <p>Zhao, Shoudong et al. (2018), Data from: The International Tree-Ring Data Bank (ITRDB) revisited: data availability and global ecological representativity, Dryad, Dataset, https://doi.org/10.5061/dryad.kh0qh06</p>
Debris thickness measurements from various glaciers in the Western Alps
<p>Debris thickness measurements collected from seven debris-covered glaciers in Switzerland and Italy in 2019 and 2020. Only data from Miage Glacier was measured in September 2020 all others were measured in August and September in 2019. The RGI Glacier ID is the first cell in each sheet. Location data is reported in decimal degrees. All debris thickness data is in centimeters and elevation data is in meters.</p> <p>Debris was measured by digging through the debris and then directly measuring the debris thickness with a measuring stick. The mean thickness is the most likely average thickness based on 3 measurements within a ~4x4m area. The 'min' measurement is the minimum debris thickness. The 'max' measurement is the absolute maximum estimate of the mean debris thickness, meaning that this estimate is that absolute maximum of the mean debris thickness. This value is determined based on the thickness of the largest non-outlier debris thickness in the area. Three measurements were taken for the mean value and 1 each for the max/min bounds. To save time, sites with mean thicknesses larger than 20 cm the extreme bounds are based on the minimum and maximum measurements within the single hole dug. Elevation data are based on a hand held GPS and this value was only recorded for some debris thickness measurements.</p>
UnityMol Annotations and Measurements Walkthrough video
<p>This video provides more detailed supportive information about using Unitymol.</p> <p>In this brief annotated video we demo the measurement capacities of UnityMol (distance, angle and dihedral angle) as well as its free-form hand-drawn annotation possibility.</p> <p> </p>
Container Registry Benchmark experiments measurements and trace workload samples
<p>Measurements for experiments using Container Registry Benchmark, CReB. 4 experiments: Long running, small experiment stress mode, small experiment delay mode, and large workload experiment.</p> <p> </p> <p>Structure:</p> <ol> <li><strong>full-measurements-long-running-pull.csv : </strong>measurements for long running pull experiment</li> <li><strong>full-measurements-long-running-push.csv: </strong>measurements for long running push experiment</li> <li><strong>result-bug-analysis.zip: </strong>results from bug analysis of trace replayer</li> <li><strong>results-1hr-experiment.zip: </strong>measurements for the large experiment (4 registries)</li> <li><strong>results-small-delay.zip: </strong>measurements for the delay mode, small experiment with real workload</li> <li><strong>results-small-stress.zip: </strong>measurements for the stress mode, small experiment with real workload</li> <li><strong>traces.zip: </strong>traces used for pen-and-paper experiment, 1 hour sample, and the trace used for small experiment (selected are first 405 requests)</li> </ol>
An Excel spreadsheet including eddy covariance, meteorological, and tidal data measured at Yunxiao mangrove flux tower.
<p>An Excel spreadsheet including eddy covariance, meteorological, and tidal data at Yunxiao mangrove flux tower required to reproduce key findings in Figures 4-9 in the main text (each figure corresponds to a single sheet). Contact Xudong Zhu at Xiamen University (xdzhu@xmu.edu.cn) if you have any question.</p>
ESA SEOM-IAS – Measurement and ACS database O3 UV region
<p>The database contains measurements and absorption cross sections generated within the framework of the ESA project SEOM-IAS (Scientific Exploitation of Operational Missions - Improved Atmospheric Spectroscopy Databases), ESA/AO/1-7566/13/I-BG. Details on the project can be found at http://www.wdc.dlr.de/seom-ias/.</p> <p>The measurements were recorded at the German Aersopace Center (DLR) to provide a new absorption cross section database for ozone according to the needs of the TROPOMI instrument aboard the Sentinel 5-P satellite. The data are compiled in 2 zip files, one for the measurements (O3_UV_region_measurement_database_13112018.zip), one for the absorption cross sections (O3_UV_region_absorption_cross_section_database_13112018.zip) and a readme file (ESA_SEOM_IAS_spectra_O3UVRegion_readme.docx).</p> <p>The file “ACS_pTpoly_2nd+1st_order_BGcoefffit_constant_offset_V2.asc” in version II replaces the older version which contained an error in the wavelength axis. The readme file was updated, too.</p>
ESA SEOM-IAS – Measurement and line parameter database O3 MIR region
<p>The database contains measurements and line parameters generated within the framework of the ESA project SEOM-IAS (Scientific Exploitation of Operational Missions - Improved Atmospheric Spectroscopy Databases), ESA/AO/1-7566/13/I-BG. Details on the project can be found at http://www.wdc.dlr.de/seom-ias/.</p> <p>The measurements were recorded and analysed at the German Aerospace Center (DLR) and the University of Reims (URCA) to provide a new line position and intensity database for ozone fundamentals in the mid infrared region. The data are compiled in five zip files, three for the measurements (O3_MIR_region_DLR_measurement_database_20112018.zip, O3_MIR_region_DLR_measurement_N2O2broad_database_07012021.zip, O3_MIR_region_URCA_measurement_database_20112018.zip), two for the line parameter databases (O3_MIR_region_DLR_parameter_database_08012021.zip, O3_MIR_region_URCA_parameter_database_20112018.zip) and a readme file (ESA_SEOM_IAS_O3MIRRegion_readme_V3.docx).</p> <p>Note: The DLR parameter database is replaced by a newer version.</p>
Measurement and model data comparisons for the HALO-FAAM formation flight during EMeRGe on 17 July 2017
<p>Within the project “Effect of Megacities on the transport and transformation of pollutants on the Regional and Global scales” (EMeRGe), the measurement flight of 13 July 2017 was performed for comparison of the instrumentation onboard of the research aircraft HALO and FAAM. The aircraft flew for 1.6 h in close formation along a racetrack pattern at three flight levels in Southern Germany. The flight started in a rather dry and clean troposphere and ended in a more polluted convective boundary layer. 28 measurement pairs sampled on both aircraft were found suitable for comparison. 17 further pairs of data are available from sampling on either HALO or FAAM. In addition, observations obtained at the DWD Hohenpeissenberg and results from 6 models are included in the comparisons. Overall, about 30% of the measured data pairs show deviations within the combined error estimates. Some measurements deviate considerably from model results.</p> <p>This dataset contains a pdf of the report and a zip file of the comparison data as described in that report.</p>
FT50 Grenser (3) 6-key fagottino: measurements, photos, endoscopic video
<p>Dataset of FT50 Grenser (3) 6-key fagottino containing detailed external and internal measurements, photos, and an endoscopic video. A CT-3D scan of this instrument exists. Instrument data and photo material provided by Dr. Tom Lerch, Leiter der Restaurierung-<br> Musikinstrumenten-Museum, Staatliches Institut für Musikforschung PK, Berlin.</p>
A versatile microfluidic platform measures hyphal interactions between Fusarium graminearum and Clonostachys rosea in real-time
<p>Routinely, fungal-fungal interactions (FFIs) are studied on agar surfaces. However, this format restricts high-resolution dynamic imaging. To gain experimental access to FFIs at the hyphal level in real-time, we developed a microfluidic platform, a FFI device. This device utilises microchannel geometry to enhance the visibility of hyphal growth and provides control channels to allow comparisons between localised and systemic effects. We demonstrate its function by investigating the FFI between the biological control agent (BCA) <em>Clonostachys rosea </em>and the plant pathogen <em>Fusarium graminearum. </em>Microscope image analyses confirm the inhibitory effect of the necrotrophic BCA and we show that a loss of fluorescence in parasitised hyphae of GFP-tagged <em>F. graminearum </em>coincides with the detection of GFP in mycelium of <em>C. rosea</em>. The versatility of our device to operate under both water-saturated and nutrient-rich as well as dry and nutrient-deficient conditions, coupled with its spatio-temporal output, opens new opportunities to study relationships between fungi.</p>
Dataset from "Constraining Martian regolith and vortex parameters from combined seismic and meteorological measurements"
<p>The table provided below (in CSV format) includes derived data obtained from the raw data of the InSight SEIS and APSS experiments. For the raw data, we acknowledge:</p> <p>InSight Mars SEIS Data Service. (2019). SEIS raw data, Insight Mission. IPGP, JPL, CNES, ETHZ, ICL, MPS, ISAE-Supaero, LPG, MFSC. https://doi.org/10.18715/SEIS.INSIGHT.XB_2016</p> <p>The dataset in this table was used to produce Figures 6, 7, 11 and 12 of the following paper:</p> <p>N. Murdoch, A. Spiga, R. Lorenz, R.F. Garcia, C. Perrin, R. Widmer-Schnidrig, S. Rodriguez, N. Compaire, N. H. Warner, D. Mimoun, D. Banfield, P. Lognonné and W.B. Banerdt. Constraining Martian regolith and vortex parameters from combined seismic and meteorological measurements. Journal of Geophysical Research: Planets.</p> <p>The table provides derived vortex parameters of all vortices studied in this paper. The columns of the table contain the following properties of every vortex event: Sol, UTC date and time, Local Mean Solar Time (LMST), Observed pressure deficit <span class="math-tex">\(\Delta P_{obs}\)</span> (determined from the fit to the Ellehoj et al. (2010) model after filtering in the 0.02 - 0.3 Hz frequency band), Observed pressure drop encounter duration <span class="math-tex">\(\tau\)</span> (FWHM determined from the fit to the Ellehoj et al. (2010) model after filtering in the 0.02 - 0.3 Hz frequency band), the Ellehoj et al. (2010) model goodness of fit to the vortex pressure data (after filtering in the 0.02 - 0.3 Hz frequency band), Mean background wind speed <span class="math-tex">\(v\)</span>, Standard deviation of background wind speed <span class="math-tex">\(\sigma_v\)</span>, Maximum radial tilt <span class="math-tex">\(\theta_{obs}\)</span>, Azimuth at maximum radial tilt (i.e. at closest approach) <span class="math-tex">\(\alpha_{obs}\)</span>, Mean miss distance <span class="math-tex">\(x\)</span> (i.e. when <span class="math-tex">\(S = v\)</span>), <span class="math-tex">\(\eta \)</span> (defined as <span class="math-tex">\(E/(1-\nu^2) \)</span>), Mean <span class="math-tex">\(\zeta\)</span> (i.e. when <span class="math-tex">\(S = v\)</span>). For further details about these parameters please see the paper cited above.</p>
Homogeneity Measurements in an Aerosol Mixing Chamber
<p>The published excel files contain the experimental data presented in the master thesis of Andrea Giordano entitled "CFD Simulation of an Aerosol Mixing Chamber"</p> <p>available at https://infoscience.epfl.ch/record/280815?ln=en</p> <p>The data are presented in the thesis figs. 33 to 36</p> <p>The nomenclature is as follows (details see in the thesis)</p> <p>Lenght:<br> normal: standard lenght of mixing tube 0.75 m<br> short: shortened version of the mixing tube 0.57 m<br> shortest: further shortened version of the mixing tube 0.35 m</p> <p>Flow Rates:<br> 4020: 40 lpm from top, 20 lpm through mixing jets, standard<br> half: 20 lpm from top, 10 lpm through mixing jets<br> one to one: 10 lpm from top, 10 lpm through mixing jets jets</p> <p>Material:<br> salt: atomized from solution; geo. mean of particles app. 80 nm<br> dust: Arizon A2 test dust, geo. mean of particles app. 400 nm<br> 1micr. PSL: certified PSL particles monodosperse, diamter 900 nm </p> <p>Each files contains a sheet with the results and a sheet with the CPC raw data</p>
Measurement report: Characterization of uncertainties of fluxes and fuel sulfur content from ship emissions at the Baltic Sea
<p>This data submission is connected to a scientific paper submitted to<br> Atmospheric Chemistry and Physics ("Measurement report: Characterization of uncertainties of fluxes and fuel sulfur content from ship emissions at the Baltic Sea" by Walden et al.). It consists of measurement results conducted beside the ship routs at the Baltic Sea near Helsinki, Finland. The gaseous and particle concentrations were measured along with the meteorological parameters, and the fluxes were calculated by the micrometeorological methods. The content of sulfur in the marine fuel, FSC, used by the passing ships was also calculated. We paid attention to calculate the uncertainties of the measurement results, both for the fluxes and for the FSC.</p> <p>The released data of:<br> 1. Gases, particles and met data (SO<sub>2</sub>, NO, NO<sub>2</sub>, O<sub>3</sub>, CO<sub>2</sub>, and N<sub>tot</sub> (number concentration of nanoparticles) as minute values. </p> <p>Data_ACP_Fig4_acbd.xlsx.</p> <p> <br> 2. Size distribution of nanoparticles (number concentration of nanoparticles at size class). Data_ACP_Fig6.xlsx</p> <p> <br> 3. Profiles of 30 min averages of gases, nanoparticles and meteorological parameters (SO<sub>2</sub>, NO, NO<sub>2</sub>, O<sub>3</sub>, CO<sub>2</sub>, and N<sub>tot</sub> (number concentration of nanoparticles), wind direction and wind speed, friction velocity, stability parameter and Monin-Obukhov length. Calculated values of atmospheric turbulence parameters and calculated fluxes of CO2 and nanoparticles by gradient and/or eddy covariance method.</p> <p>Data_ACP_Fig8_abcd_Fig9_abcd.xlsx<br> <br> 4. CO2 fluxes by Eddy covariance method from land based and sea based measurements. Concentration of CO2 in seawater and in air.</p> <p>Data_ACP_Fig10_ab.xlsxEngl</p>
Debris temperature and ablation measurements from the Lirung Debris-Covered Glacier (2013-2014), Nepal
<p>These data are from the debris-covered portion of Lirung Glacier, Langtang Valley located in the Langtang National Park of the Nepal Himalaya that were collected during three field expeditions between September 2013 and April 2014. The data includes debris temperature measurements at two different sites of the glacier in three different seasons of the year 2013 (Monsoon and Winter) and 2014 (Pre-Monsoon). Debris temperature measurements from thermistors located at the surface (Black-colored dirty ice) to up to 40 cm from the surface. Dataset also included the ablation measurement in three seasons at different debris-thicknesses. Below is a brief description of the two different datasets:</p> <p>- Ablation_stake_data_Lirung_glacier_CHAND.csv: ablation stake measurement in the Monsoon and Winter season of 2013 and pre-monsoon season of 2014 from Chand and Kayastha (2018) and Chand et al. (2015).</p> <p>- Debris_temperature_profile_Lirung_Glacier_CHAND.csv: debris temperature measurements (Degree Celcius) where the depth is reported in cm from Chand and Kayastha (2018).</p> <p>----- Citing datasets -----</p> <p>Chand, M. B., and Kayastha, R. B. (2018). Study of thermal properties of supraglacial debris and degree-day factors on Lirung Glacier, Nepal. Sciences in Cold and Arid Regions, 10(5): 357-368 doi:10.3724/SP.J.1226.2018.00357</p> <p>Chand, M. B., Kayastha, R. B., Parajuli, A., and Mool, P. K. (2015). Seasonal variation of ice melting on varying layers of the debris of Lirung Glacier, Langtang Valley, Nepal, Proc. IAHS, 368, 21–26, https://doi.org/10.5194/piahs-368-21-2015</p> <p> </p>
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.