Kernel Metadata Declaration — on demand
ISO 26324 asks a DOI Registration Agency to produce a Kernel Metadata Declaration for every DOI it issues. Give any DOI: its public record becomes a record in the Smart Scholars DOI Metadata Format 1.0, checked against every rule, and declared as the Kernel XML.
✓ Meets every rule of the format
The record below is complete and every controlled value is a DOI Attribute Value Set 2.3 spelling. The Declaration on the right follows DOIMetadataKernel.xsd element by element.
What the DOI identifies
Mechanical Building Facilities :Maintenance of HVAC
10.46243/jst.2022.v7.i04.pp35-44 · JournalArticle — an article in a journal · Digital · Visual · Language · en
Published 2022-06-27
Part of Journal of Science & Technology · ISSN 2456-5660 · vol. 7 · no. 4 · pp. 35–44
Principal agents
- Sale Yakubu Sale Yakubu (author → Author)
- Longman Publishers (publisher → Publisher)
Also in the record, outside the Kernel: the abstract, the licence, 4 links, 10 references. Source: Crossref (member 25296), registered 2024-02-16, last deposited 2026-09-20.
System metadata — ISO 26324:2025, Annex B · DOI Handbook 10.1
Each element by the standard's name and the Handbook's (in grey), read off the record.
| DOI Name DOI name | 10.46243/jst.2022.v7.i04.pp35-44 |
| Referent Type referentType | Creation |
| Referent Sub-Type referentSubType | JournalArticle — an article in a journal |
| Referent Name(s) referentName(s) | Mechanical Building Facilities :Maintenance of HVAC (PrincipalTitle, en) |
| Basic Metadata basicMetadata | author: Sale Yakubu Sale Yakubu publisher: Longman Publishers published: 2022-06-27 part of: Journal of Science & Technology · ISSN 2456-5660 · vol. 7 · no. 4 · pp. 35–44 language: en form: Digital · Visual · Language |
| Referent Identifier(s) alternateIdentifier(s) | none besides the DOI |
| Registration Authority registrationAuthorityCode | Crossref — issued by Crossref (member 25296); held here as a copy |
| Created Date issueDate | 2024-02-16 |
| relatedIdentifiers | none needed — the descriptive metadata is in this record |
The record
{
"format": "smartscholars-doi-metadata/1.0",
"doi": "10.46243/jst.2022.v7.i04.pp35-44",
"referent": "Creation",
"type": "JournalArticle",
"structural_type": "Digital",
"modes": [
"Visual"
],
"characters": [
"Language"
],
"titles": [
{
"value": "Mechanical Building Facilities :Maintenance of HVAC",
"type": "PrincipalTitle",
"lang": "en"
}
],
"identifiers": [
{
"type": "DOI",
"value": "10.46243/jst.2022.v7.i04.pp35-44"
}
],
"agents": [
{
"role": "author",
"name": {
"given": "Sale Yakubu",
"family": "Sale Yakubu"
},
"sequence": "first"
},
{
"role": "publisher",
"name": {
"org": "Longman Publishers"
}
}
],
"dates": {
"published": "2022-06-27",
"date_type": "PublicationDate",
"online": "2022-06-27"
},
"language": "en",
"container": {
"type": "Journal",
"titles": [
{
"value": "Journal of Science & Technology",
"type": "PrincipalTitle"
}
],
"identifiers": [
{
"type": "ISSN",
"value": "2456-5660",
"medium": "electronic"
}
],
"volume": "7",
"issue": "4",
"pages": {
"first": "35",
"last": "44"
}
},
"links": [
{
"url": "https://www.jst.org.in/index.php/pub/article/view/630",
"return_type": "text/html",
"primary": true
},
{
"url": "https://www.jst.org.in/index.php/pub/article/download/630/562",
"purpose": "text-mining",
"return_type": "application/pdf"
},
{
"url": "https://www.jst.org.in/index.php/pub/article/download/630/2093",
"purpose": "text-mining",
"return_type": "application/xml"
},
{
"url": "https://jst.org.in/admin/uploads/JST070415.pdf",
"purpose": "similarity-checking"
}
],
"abstract": {
"value": "Every nation desires and aspires to have sustainability in all spheres of development. This can be achieved through the provision of adequate maintenance of the acquired facilities. The article centers on HVAC system, description and maintenance strategies and practices in the system. The article is crafted with no specific case study. The paper discusses HVAC Systems, the test and maintenance essential equipment. Factors affecting the performance sufficiency of HVAC have been stated and step-by-step remedial action have also been itemized",
"lang": "en"
},
"license": {
"url": "https://creativecommons.org/licenses/by/4.0/",
"start": "2022-06-27",
"applies_to": "vor"
},
"references": [
{
"key": "ref1",
"unstructured": "ASHRAE. (1996). ASHRAE Handbook. HVAC Systems and Equipment. Atlanta, GA: American Society of Heating, Refrigerating, and Air Conditioning Engineers"
},
{
"key": "ref2",
"doi": "10.17265/2159-5275/2018.01.006",
"unstructured": "B. B. Okon, V. E. (2018). Building Services Equipment and Effective Maintenance Culture: The Experts Standpoint. Journal of Mechanics Engineering and Automation, 8, 35-42"
},
{
"key": "ref3",
"unstructured": "BHVAC. (2017, February 17). Retrieved from Byrd heating and Air Conditioniing: https://byrdheatingandair.com/articles/6-important-parts-hvac-system"
},
{
"key": "ref4",
"unstructured": "Brennan. (2022). Retrieved from Brennan Heating & Air Conditioning: https://brennanheating.com/how-does-hvac- system-work/"
},
{
"key": "ref5",
"unstructured": "Cheshire, D. M. (2007). Sustainability Meets ASHRAE Guide. “Chartered Institution of Building Services Engineers.”"
},
{
"key": "ref6",
"unstructured": "Kanomax. (2021, August 10). Retrieved from Kanomax: https://kanomax-usa.com/hvac-testing-tools-every- technician-should-own/"
},
{
"key": "ref7",
"unstructured": "Mark Wolfe, S. A. (2022, 6 6). Retrieved from https://www.forbes.com/advisor/home-improvement/hvac- maintenance-tips/"
},
{
"key": "ref8",
"unstructured": "Petro. (2022, June 5). Retrieved from https://www.petro.com/resource-center/what-is-hvac"
},
{
"key": "ref9",
"doi": "10.5772/intechopen.78942",
"unstructured": "Seyam, S. (2018). Types of HVAC Systems. In HVAC System"
},
{
"key": "ref10",
"unstructured": "Wiggins, J. M. (2014). Mechanical and Electrical Systems and their Maintenance. John Wiley & Sons, Ltd"
}
],
"record": {
"registrant": "Longman Publishers",
"registered": "2024-02-16",
"updated": "2026-09-20",
"issue_number": 1,
"source": "crossref-api",
"source_agency": "Crossref (member 25296)"
}
}The Kernel Metadata Declaration
DOIMetadataKernel.xsd · namespace http://www.doi.org/2010/DOISchema · Attribute Value Sets 2.3 · draft — the agency's DOI name is filled in on accreditation
<?xml version="1.0" encoding="UTF-8"?>
<!-- DRAFT declaration: Smart Scholars is not yet a DOI Registration Agency. registrationAgencyDoiName is a marker (10.0/ is no RA's prefix) and is filled in on accreditation. -->
<kernelMetadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.doi.org/2010/DOISchema https://www.doi.org/doi_schemas/DOIMetadataKernel.xsd" xmlns="http://www.doi.org/2010/DOISchema">
<referentDoiName>10.46243/jst.2022.v7.i04.pp35-44</referentDoiName>
<primaryReferentType>Creation</primaryReferentType>
<registrationAgencyDoiName>10.0/smart-scholars-draft</registrationAgencyDoiName>
<issueDate>2026-10-04</issueDate>
<issueNumber>1</issueNumber>
<referentCreation>
<name primaryLanguage="en">
<value>Mechanical Building Facilities :Maintenance of HVAC</value>
<type>PrincipalTitle</type>
</name>
<identifier>
<nonUriValue>10.46243/jst.2022.v7.i04.pp35-44</nonUriValue>
<uri returnType="text/html" doesContentNegotiation="true">https://doi.org/10.46243/jst.2022.v7.i04.pp35-44</uri>
<type>DOI</type>
</identifier>
<identifier>
<uri returnType="text/html">https://www.jst.org.in/index.php/pub/article/view/630</uri>
<type>URI</type>
</identifier>
<identifier>
<uri>https://www.jst.org.in/index.php/pub/article/download/630/562</uri>
<type>URI</type>
</identifier>
<identifier>
<uri returnType="application/xml">https://www.jst.org.in/index.php/pub/article/download/630/2093</uri>
<type>URI</type>
</identifier>
<identifier>
<uri>https://jst.org.in/admin/uploads/JST070415.pdf</uri>
<type>URI</type>
</identifier>
<structuralType>Digital</structuralType>
<mode>Visual</mode>
<character>Language</character>
<type>JournalArticle</type>
<principalAgent>
<name>
<value>Sale Yakubu Sale Yakubu</value>
<type>PrincipalName</type>
</name>
<role>Author</role>
</principalAgent>
<principalAgent>
<name>
<value>Longman Publishers</value>
<type>PrincipalName</type>
</name>
<role>Publisher</role>
</principalAgent>
<linkedCreation>
<name>
<value>Journal of Science & Technology</value>
<type>PrincipalTitle</type>
</name>
<identifier>
<nonUriValue>2456-5660</nonUriValue>
<type>ISSN</type>
</identifier>
<referentCreationRole>Part</referentCreationRole>
<referentCreationSequenceIdentifier>
<value>7</value>
<type>VolumeNumber</type>
</referentCreationSequenceIdentifier>
<referentCreationSequenceIdentifier>
<value>4</value>
<type>IssueNumber</type>
</referentCreationSequenceIdentifier>
<referentCreationSequenceIdentifier>
<value>35-44</value>
<type>PageNumber</type>
</referentCreationSequenceIdentifier>
</linkedCreation>
<language>en</language>
<languageOfReferentContent>
<language>en</language>
<languageOfReferentContentType>Original</languageOfReferentContentType>
</languageOfReferentContent>
<creationDate>
<date>2022-06-27</date>
<creationDateType>PublicationDate</creationDateType>
</creationDate>
</referentCreation>
</kernelMetadata>
