cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.mwetk5
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Enteromius yongei, Enteromius zalbiensis, Enteromius zanzibaricus, Epiplatys annulatus, Epiplatys ansorgii, Epiplatys barmoiensis, Epiplatys biafranus, Epiplatys bifasciatus, Epiplatys chaperi, Epiplatys chevalieri, Epiplatys coccinatus, Epiplatys dageti, Epiplatys duboisi, Epiplatys esekanus, Epiplatys etzeli, Epiplatys fasciolatus, Epiplatys grahami, Epiplatys guineensis, Epiplatys hildegardae, Epiplatys huberi, Epiplatys infrafasciatus, Epiplatys josianae, Epiplatys lamottei, Epiplatys lokoensis, Epiplatys longiventralis, Epiplatys maeseni, Epiplatys mesogramma, Epiplatys multifasciatus, Epiplatys neumanni, Epiplatys njalaensis, Epiplatys olbrechtsi, Epiplatys phoeniceps, Epiplatys roloffi, Epiplatys ruhkopfi, Epiplatys sangmelinensis, Epiplatys sexfasciatus, Epiplatys singa, Epiplatys spilargyreius, Epiplatys togolensis, Epiplatys zenkeri, Equulites leuciscus, Eretmodus cyanostictus, Erpetoichthys calabaricus, Esox lucius, Ethmalosa fimbriata, Etia nguti, Euchilichthys astatodon, Euchilichthys boulengeri, Euchilichthys dybowskii, Euchilichthys guentheri, Euchilichthys royauxi, Eugnathichthys eetveldii, Eugnathichthys macroterolepis, Exochochromis anagenys, Favonigobius reichei, Fenerbahce formosus, Foerschichthys flavipinnis, Fontitrygon garouaensis, Fontitrygon ukpam, Fossorochromis rostratus, Fundulopanchax amieti, Fundulopanchax arnoldi, Fundulopanchax avichang, Fundulopanchax cinnamomeus, Fundulopanchax deltaense, Fundulopanchax deltaensis, Fundulopanchax fallax, Fundulopanchax filamentosus, Fundulopanchax gardneri, Fundulopanchax gresensi, Fundulopanchax gularis, Fundulopanchax intermittens, Fundulopanchax kamdemi, Fundulopanchax lacustris, Fundulopanchax mamfensis, Fundulopanchax marmoratus, Fundulopanchax mirabilis, Fundulopanchax moensis, Fundulopanchax ndianus, Fundulopanchax oeseri, Fundulopanchax powelli, Fundulopanchax puerzli, Fundulopanchax robertsoni, Fundulopanchax rubrolabialis, Fundulopanchax scheeli)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((3.8924 37.4235,1.1382 37.0126,1.1382 29.0599,10.1382 29.0599,10.1382 37.8331,9.4029 37.7805,8.9557 38.0599,8.517 37.8538,8.3781 37.425,6.4409 37.5887,5.341 37.2123,4.8286 37.3907,3.8924 37.4235))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009128-250827131500795/datasets/export for details.
DOI: 10.15468/dl.v54kq9
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Barbatula restricta)",
 "BasisOfRecord is one of (Specimen, Literature Occurrence, Human Observation, Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1991",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009124-250827131500795/datasets/export for details.
DOI: 10.15468/dl.2auqm7
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Sansevieria trifasciata",
 "Country is Comoros",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009127-250827131500795/datasets/export for details.
DOI: 10.3535/ngt-gty-869
title: Lepidoptera Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.8d55g3
title: Occurrence Download

description: A dataset containing 131050 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((24.40929 -6.07297,144.40929 -6.07297,144.40929 48.9656,24.40929 48.9656,24.40929 -6.07297))",
 "HasGeospatialIssue is false",
 "TaxonKey is Betulaceae"
 ]
}

 The dataset includes 131050 records from 364 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009077-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3886/e198503v1
title: Data and Code for: "Working Remotely? Selection, Treatment and the Market for Remote Work"

description: Publicly available data and code for "Working Remotely? Selection, Treatment and the Market for Remote Work"<br>How does remote work affect productivity and how productive are workers who choose remote jobs? We decompose these effects in a Fortune 500 firm. Before Covid-19, remote workers answered 12% fewer calls per hour than on-site workers. After the offices closed, the productivity gap narrowed by 4%, and formerly on-site workers’ call quality and promotion rates also declined. Even with everyone remote, an 8% productivity gap persisted, indicating negative selection into remote jobs. A cost-benefit analysis indicates that the savings from remote work in reducing turnover and office rents could outweigh remote work's negative productivity impact but not the costs of attracting less productive workers.<br>
DOI: 10.15468/dl.nu8d8p
title: Occurrence Download

description: A dataset containing 48 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Scotargus pilosus Simon, 1913",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 48 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103527-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bwezr9
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Robinia pseudoacacia L.",
 "Country is Brazil",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 10000",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 8 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103526-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7gfr2a
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Sorbus pyricarpa C.Németh)",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 2000",
 "BasisOfRecord is one of (Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 100",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103528-240626123714530/datasets/export for details.
DOI: 10.15468/dl.qh7wfy
title: Occurrence Download

description: A dataset containing 131 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Pleurogeophilus mediterraneus Meinert, 1870",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 131 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103529-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qq7uwp
title: Occurrence Download

description: A dataset containing 5738 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Mayacaceae"
 ]
}

 The dataset includes 5738 records from 290 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103520-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.thkmwm
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Acritus hopffgarteni Reitter, 1878",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103530-240626123714530/datasets/export for details.
DOI: 10.15468/dl.pwxj3e
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Scotargus enghoffi Wunderlich, 1992",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103531-240626123714530/datasets/export for details.
DOI: 10.15468/dl.4afvcz
title: Occurrence Download

description: A dataset containing 197 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Roeboides descalvadensis Fowler, 1932",
 "Country is Brazil",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 10000",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 197 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103532-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bjvxbj
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Sorbus dracofolia C.Németh)",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 2000",
 "BasisOfRecord is one of (Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 100",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103533-240626123714530/datasets/export for details.
DOI: 10.15468/dl.6dxa3d
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Folkmanovius parallelus Dobroruka, 1957",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103534-240626123714530/datasets/export for details.
DOI: 10.15468/dl.t3r6r8
title: Occurrence Download

description: A dataset containing 618 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Margarinotus merdarius (Hoffmann, 1803)",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 618 records from 94 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103535-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.25254997.v2
title: submesoscale in Red Sea by glider 2016

description: This item includes raw and gridded underwater glider data for the study of submesoscale processes in Red Sea. The observed parameters include temperature, salinity, depth, chl-a, CDOM, and dissolved oxygen. all the parameters are corrected by quality control procedures suggested in the paper. BG_256_sg213, BG_260_sg214, BG_280_sg212, are datesets include transects along the predetermined trajectory, during autumn, winter, and spring, respectively.grid_213_timegrid, grid_214_timegrid, grid_218_timegrid are gridded datesets which are interpoleted with a time of 3h and a depth of 2m.256_sg213, 260_sg214, 280_sg218 are raw datesates, which includes all of uncorrected parameters provide by underwater glider. A detailed introduction of parameter can be found in the raw datesets.<br>
DOI: 10.15468/dl.79z9pb
title: Occurrence Download

description: A dataset containing 1749 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Thurniaceae"
 ]
}

 The dataset includes 1749 records from 88 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103536-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y9aj7a
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Sorbus acutiserrata C.Németh)",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 2000",
 "BasisOfRecord is one of (Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 100",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103539-240626123714530/datasets/export for details.
DOI: 10.15468/dl.jaxcvf
title: Occurrence Download

description: A dataset containing 23 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Rosa chinensis Jacq.",
 "Country is Brazil",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 10000",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 23 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103538-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.z4q2uw
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Scotargus grancanariensis Wunderlich, 1992",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103537-240626123714530/datasets/export for details.
DOI: 10.15468/dl.7mcj56
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Eurygeophilus multistiliger Verhoeff, 1899",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 4 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103540-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3qdqqe
title: Occurrence Download

description: A dataset containing 122 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Margarinotus bipustulatus (Schrank, 1781)",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 122 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103541-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.q5ms7n
title: Occurrence Download

description: A dataset containing 5839 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Living Specimen, Occurrence evidence, Material citation, Material sample, Machine Observation, Observation, Human Observation, Specimen)",
 "Geometry POLYGON((131.88078 34.30595,116.49015 36.99931,109.24372 36.80692,104.04938 34.17769,91.99338 31.8691,79.36024 33.79292,74.10177 35.90914,71.8573 35.78088,75.25607 30.33003,82.88726 24.43029,94.1096 10.64284,97.44423 -2.05443,107.19164 -10.96818,133.41985 -10.77579,151.6321 -12.1866,164.13699 -9.49324,131.88078 34.30595))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Sabia Colebr."
 ]
}

 The dataset includes 5839 records from 58 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103542-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.euvkcy
title: Occurrence Download

description: A dataset containing 1175 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Notioscopus sarcinatus (O.Pickard-Cambridge, 1873)",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 1175 records from 35 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103544-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8n3kvk
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Sorbus vallerubusensis C.Németh)",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 2000",
 "BasisOfRecord is one of (Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 100",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103543-240626123714530/datasets/export for details.
DOI: 10.15468/dl.qf4jnr
title: Occurrence Download

description: A dataset containing 47 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "SpeciesKey is Eurygeophilus pinguis Brölemann, 1898",
 "Year is greater than or equal to 2004",
 "Year is less than or equal to 2023"
 ]
}

 The dataset includes 47 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0103546-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.13379734
title: ENDGAME - Laboratory Experiment 2024-03-21 Exp. 010 - High Speed Camera data

description: Shock-tube experiments in combination with high speed Schlieren shadow photography. 

The shocktube setup consists of a high-pressure reservoir connected with a cylindrical tube through a diaphragm pulse valve which allows a fast release of pressurized gas into the ambient pressure tube. The high-pressure reservoir is filled with compressed air at a given overpressure with respect to ambient pressure (up to 8 bar). The pipe was either empty (i.e. with air at ambient conditions) or filled with a given amount of small particles. We adopted a pipe with an inner diameter of 4 cm (outer diameter 5 cm) and 80 cm long. The volume of pressurized gas injected into the pipe was ~3000 cm3. In some cases a pressure sensor has been placed at the vent of the conduit to record pressure variations during the experiment. Images from the high speed camera were collected at a frame rate of 30000 fps.

When the valve is open, a jet flow is produced, with shock and acoustic waves propagating in the atmosphere, which become visible due to the high speed Schlieren shadow photography.
DOI: 10.5281/zenodo.13379735
title: ENDGAME - Laboratory Experiment 2024-03-21 Exp. 010 - High Speed Camera data

description: Shock-tube experiments in combination with high speed Schlieren shadow photography. 

The shocktube setup consists of a high-pressure reservoir connected with a cylindrical tube through a diaphragm pulse valve which allows a fast release of pressurized gas into the ambient pressure tube. The high-pressure reservoir is filled with compressed air at a given overpressure with respect to ambient pressure (up to 8 bar). The pipe was either empty (i.e. with air at ambient conditions) or filled with a given amount of small particles. We adopted a pipe with an inner diameter of 4 cm (outer diameter 5 cm) and 80 cm long. The volume of pressurized gas injected into the pipe was ~3000 cm3. In some cases a pressure sensor has been placed at the vent of the conduit to record pressure variations during the experiment. Images from the high speed camera were collected at a frame rate of 30000 fps.

When the valve is open, a jet flow is produced, with shock and acoustic waves propagating in the atmosphere, which become visible due to the high speed Schlieren shadow photography.