@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description "<p>The reliability of SmallSat / CubeSat missions may be increased by using software&nbsp;radiation mitigation for single event upsets (SEUs). Implementing protection in software&nbsp;results in a lower level of tolerance than traditional hardware techniques, but hardware&nbsp;costs and power requirements are kept to a minimum by taking advantage of nonredundant commodity hardware. This work&nbsp;will extend NASA&rsquo;s Core Flight Executive&nbsp;(cFE) to provide software based protection and evaluate the results so that informed decisions can be made about such trade-offs.</p><p>The project objectives are to answer the following questions about software radiation mitigation techniques applied to NASA&rsquo;s Core Flight Executive (cFE):<br />&middot; How much can the occurrence of failures due to SEUs be reduced?<br />&middot; What were the costs in terms of processor overhead?<br />&middot; What are the impacts on normal cFE application development?<br />To answer these questions, this project will incorporate software radiation mitigation&nbsp;into cFE for an example CubeSat application. The primary protection mechanism investigated will be&nbsp;scalable modular redundancy of software components (applications). Scalable modular&nbsp;redundancy will be non-intrusive for cFE application developers and allow the level of&nbsp;redundancy to be adjusted as needed. Other techniques, such as source level approaches,&nbsp;may be employed for cFE itself if testing reveals potential reliability gains.</p>" ;
    dct:identifier "TECHPORT_90792" ;
    dct:issued "2017-09-01"^^xsd:date ;
    dct:modified "2020-01-29"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Core Flight Executive Software Radiation Mitigation Study" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "TECHPORT SUPPORT" ;
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        "national",
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        "united-states" .

<https://data.amerigeoss.org/dataset/3f57c7b2-f8b6-4f64-b9fb-00069b531aaf/resource/6387fd56-65c0-41f8-873e-7764a20fa641> a dcat:Distribution ;
    dct:description "Techport Project Page" ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T04:40:20.052701"^^xsd:dateTime ;
    dct:modified "2025-11-21T04:52:38.704368"^^xsd:dateTime ;
    dct:title "Core Flight Executive Software Radiation Mitigation Study" ;
    dcat:accessURL <https://techport.nasa.gov/view/90792> ;
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<https://data.amerigeoss.org/dataset/3f57c7b2-f8b6-4f64-b9fb-00069b531aaf/resource/c5e8aa4e-6d35-413f-9eac-afb506de9cd9> a dcat:Distribution ;
    dct:description "Techport Project PDF Export" ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T04:40:20.052713"^^xsd:dateTime ;
    dct:modified "2025-11-21T04:52:38.705551"^^xsd:dateTime ;
    dct:title "Core Flight Executive Software Radiation Mitigation Study" ;
    dcat:accessURL <https://techport.nasa.gov/datasheet/90792> ;
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<https://data.amerigeoss.org/dataset/3f57c7b2-f8b6-4f64-b9fb-00069b531aaf/resource/c63a78eb-2172-434e-977f-3951e6424491> a dcat:Distribution ;
    dct:description "Techport Project JSON Metadata" ;
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    dct:modified "2025-11-21T04:52:38.704770"^^xsd:dateTime ;
    dct:title "Core Flight Executive Software Radiation Mitigation Study" ;
    dcat:accessURL <https://techport.nasa.gov/api/projects/90792> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/dataset/3f57c7b2-f8b6-4f64-b9fb-00069b531aaf/resource/cae7048e-e915-4d34-88e6-dc747da5ec2d> a dcat:Distribution ;
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    dct:format "HTML" ;
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    dct:modified "2025-11-21T04:52:38.705161"^^xsd:dateTime ;
    dct:title "Core Flight Executive Software Radiation Mitigation Study" ;
    dcat:accessURL <https://techport.nasa.gov/api/projects/90792.xml> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
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