{"id":"https://openalex.org/W34372445","doi":"https://doi.org/10.3390/s21155205","title":"Rod and dish cathode improves penning-type vacuum gage","display_name":"Rod and dish cathode improves penning-type vacuum gage","publication_year":1966,"publication_date":"1966-03-01","ids":{"openalex":"https://openalex.org/W34372445","doi":"https://doi.org/10.3390/s21155205","mag":"34372445"},"language":"en","primary_location":{"id":"mag:34372445","is_oa":false,"landing_page_url":"https://ntrs.nasa.gov/api/citations/19660000082/downloads/19660000082.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306402118","display_name":"NASA Technical Reports Server (NASA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1305493378","host_organization_name":"NASA Headquarters","host_organization_lineage":["https://openalex.org/I1305493378"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},"type":"article","indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5062135555","display_name":"G. B. Peppin","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"G. B. Peppin","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5062135555"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.00523104,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"21","issue":"15","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11890","display_name":"Scientific Measurement and Uncertainty Evaluation","score":0.9983999729156494,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11890","display_name":"Scientific Measurement and Uncertainty Evaluation","score":0.9983999729156494,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13414","display_name":"Radioactive Decay and Measurement Techniques","score":0.9940999746322632,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13928","display_name":"Advanced Sensor Technologies Research","score":0.992900013923645,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/torr","display_name":"Torr","score":0.839322566986084},{"id":"https://openalex.org/keywords/cathode","display_name":"Cathode","score":0.7297509908676147},{"id":"https://openalex.org/keywords/penning-ionization","display_name":"Penning ionization","score":0.6968992948532104},{"id":"https://openalex.org/keywords/ionization","display_name":"Ionization","score":0.5173120498657227},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.5152797698974609},{"id":"https://openalex.org/keywords/electrical-conductor","display_name":"Electrical conductor","score":0.44864752888679504},{"id":"https://openalex.org/keywords/cold-cathode","display_name":"Cold cathode","score":0.4434841573238373},{"id":"https://openalex.org/keywords/ultra-high-vacuum","display_name":"Ultra-high vacuum","score":0.4376753866672516},{"id":"https://openalex.org/keywords/analytical-chemistry","display_name":"Analytical Chemistry (journal)","score":0.3316042721271515},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.3093172311782837},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.24070662260055542},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.20693913102149963},{"id":"https://openalex.org/keywords/composite-material","display_name":"Composite material","score":0.1836698055267334},{"id":"https://openalex.org/keywords/ion","display_name":"Ion","score":0.13500246405601501},{"id":"https://openalex.org/keywords/nanotechnology","display_name":"Nanotechnology","score":0.11122849583625793},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10247105360031128},{"id":"https://openalex.org/keywords/chromatography","display_name":"Chromatography","score":0.06576898694038391}],"concepts":[{"id":"https://openalex.org/C30646810","wikidata":"https://www.wikidata.org/wiki/Q185648","display_name":"Torr","level":2,"score":0.839322566986084},{"id":"https://openalex.org/C49110097","wikidata":"https://www.wikidata.org/wiki/Q175233","display_name":"Cathode","level":2,"score":0.7297509908676147},{"id":"https://openalex.org/C2777138958","wikidata":"https://www.wikidata.org/wiki/Q2069105","display_name":"Penning ionization","level":4,"score":0.6968992948532104},{"id":"https://openalex.org/C198291218","wikidata":"https://www.wikidata.org/wiki/Q190382","display_name":"Ionization","level":3,"score":0.5173120498657227},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5152797698974609},{"id":"https://openalex.org/C202374169","wikidata":"https://www.wikidata.org/wiki/Q124291","display_name":"Electrical conductor","level":2,"score":0.44864752888679504},{"id":"https://openalex.org/C207437497","wikidata":"https://www.wikidata.org/wiki/Q814902","display_name":"Cold cathode","level":3,"score":0.4434841573238373},{"id":"https://openalex.org/C82225425","wikidata":"https://www.wikidata.org/wiki/Q7880334","display_name":"Ultra-high vacuum","level":2,"score":0.4376753866672516},{"id":"https://openalex.org/C113196181","wikidata":"https://www.wikidata.org/wiki/Q485223","display_name":"Analytical Chemistry (journal)","level":2,"score":0.3316042721271515},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.3093172311782837},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.24070662260055542},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.20693913102149963},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.1836698055267334},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.13500246405601501},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.11122849583625793},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10247105360031128},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.06576898694038391},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"mag:34372445","is_oa":false,"landing_page_url":"https://ntrs.nasa.gov/api/citations/19660000082/downloads/19660000082.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306402118","display_name":"NASA Technical Reports Server (NASA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1305493378","host_organization_name":"NASA Headquarters","host_organization_lineage":["https://openalex.org/I1305493378"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:casi.ntrs.nasa.gov:19660000082","is_oa":false,"landing_page_url":"http://hdl.handle.net/2060/19660000082","pdf_url":null,"source":{"id":"https://openalex.org/S4377196257","display_name":"NASA STI Repository (National Aeronautics and Space Administration)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"GSC-447"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.75}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1984699390","https://openalex.org/W208766467","https://openalex.org/W2775552846","https://openalex.org/W1964460051","https://openalex.org/W1994328473","https://openalex.org/W14220357","https://openalex.org/W2037339615","https://openalex.org/W2252300555","https://openalex.org/W1613087591","https://openalex.org/W1549154349","https://openalex.org/W1966265455","https://openalex.org/W2005413088","https://openalex.org/W2081446384","https://openalex.org/W121611226","https://openalex.org/W1967178513","https://openalex.org/W2029586943","https://openalex.org/W2064311838","https://openalex.org/W2062029573","https://openalex.org/W1976583476","https://openalex.org/W2957157711"],"abstract_inverted_index":{"The":[0,153],"aim":[1],"of":[2,27,39,44,65,93,104,137,157,172],"the":[3,42,66,102,111,164],"present":[4],"investigation":[5],"was":[6,87],"to":[7,18,100],"assess":[8],"if":[9],"a":[10,36,53,58,73,90,135],"mobile":[11,60,75],"electroencephalography":[12],"(EEG)":[13],"setup":[14,61,112],"can":[15],"be":[16,161],"used":[17],"track":[19],"mental":[20],"workload,":[21],"which":[22],"is":[23,113],"an":[24,96,141,170],"important":[25],"aspect":[26],"learning":[28,167],"performance":[29],"and":[30,32,68,95,140,146],"motivation":[31],"may":[33],"thus":[34],"represent":[35],"valuable":[37],"source":[38],"information":[40],"in":[41,118,127,143],"evaluation":[43],"cognitive":[45,105,119,151,158],"training":[46],"approaches.":[47],"Twenty":[48],"five":[49],"healthy":[50],"subjects":[51],"performed":[52],"three-level":[54],"N-back":[55],"test":[56],"using":[57],"fully":[59],"including":[62,89],"tablet-based":[63],"presentation":[64],"task":[67],"EEG":[69,76],"data":[70],"collection":[71],"with":[72,149,169],"self-mounted":[74],"device":[77],"at":[78],"two":[79],"assessment":[80],"time":[81],"points.":[82],"A":[83],"two-fold":[84],"analysis":[85,92],"approach":[86],"chosen":[88],"standard":[91],"variance":[94],"artificial":[97],"neural":[98],"network":[99],"distinguish":[101],"levels":[103,156],"load.":[106,152],"Our":[107],"findings":[108],"indicate":[109],"that":[110],"feasible":[114],"for":[115],"detecting":[116],"changes":[117],"load,":[120],"as":[121],"reflected":[122],"by":[123,163],"alterations":[124],"across":[125],"lobes":[126],"different":[128],"frequency":[129],"bands.":[130],"In":[131],"particular,":[132],"we":[133],"observed":[134],"decrease":[136],"occipital":[138,147],"alpha":[139],"increase":[142],"frontal,":[144],"parietal":[145],"theta":[148],"increasing":[150],"most":[154],"distinct":[155],"load":[159],"could":[160],"discriminated":[162],"integrated":[165],"machine":[166],"models":[168],"accuracy":[171],"86%.":[173]},"counts_by_year":[],"updated_date":"2026-04-28T14:05:53.105641","created_date":"2025-10-10T00:00:00"}