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
Fixed-Bed Column Adsorption Studies of Lead (II) From Aqueous Solution Using Chitosan -G-Maleic Anhydride-G-Methacrylic Acidcopolymer
10.46243/jst.2020.v5.i4.pp316-334 · JournalArticle — an article in a journal · Digital · Visual · Language · en
Published 2020-07-30
Part of Journal of Science & Technology · ISSN 2456-5660 · no. Volume 5 · pp. 316–334
Principal agents
- Longman Publishers (publisher → Publisher)
Also in the record, outside the Kernel: the abstract, the licence, 3 links, 6 references. Source: Crossref (member 25296), registered 2020-07-30, last deposited 2026-09-26.
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.2020.v5.i4.pp316-334 |
| Referent Type referentType | Creation |
| Referent Sub-Type referentSubType | JournalArticle — an article in a journal |
| Referent Name(s) referentName(s) | Fixed-Bed Column Adsorption Studies of Lead (II) From Aqueous Solution Using Chitosan -G-Maleic Anhydride-G-Methacrylic Acidcopolymer (PrincipalTitle, en) |
| Basic Metadata basicMetadata | publisher: Longman Publishers published: 2020-07-30 part of: Journal of Science & Technology · ISSN 2456-5660 · no. Volume 5 · pp. 316–334 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 | 2020-07-30 |
| relatedIdentifiers | none needed — the descriptive metadata is in this record |
The record
{
"format": "smartscholars-doi-metadata/1.0",
"doi": "10.46243/jst.2020.v5.i4.pp316-334",
"referent": "Creation",
"type": "JournalArticle",
"structural_type": "Digital",
"modes": [
"Visual"
],
"characters": [
"Language"
],
"titles": [
{
"value": "Fixed-Bed Column Adsorption Studies of Lead (II) From Aqueous Solution Using Chitosan -G-Maleic Anhydride-G-Methacrylic Acidcopolymer",
"type": "PrincipalTitle",
"lang": "en"
}
],
"identifiers": [
{
"type": "DOI",
"value": "10.46243/jst.2020.v5.i4.pp316-334"
}
],
"agents": [
{
"role": "publisher",
"name": {
"org": "Longman Publishers"
}
}
],
"dates": {
"published": "2020-07-30",
"date_type": "PublicationDate",
"online": "2020-07-30"
},
"language": "en",
"container": {
"type": "Journal",
"titles": [
{
"value": "Journal of Science & Technology",
"type": "PrincipalTitle"
}
],
"identifiers": [
{
"type": "ISSN",
"value": "2456-5660",
"medium": "electronic"
}
],
"issue": "Volume 5",
"pages": {
"first": "316",
"last": "334"
}
},
"links": [
{
"url": "https://www.jst.org.in/index.php/pub/article/view/336",
"return_type": "text/html",
"primary": true
},
{
"url": "https://www.jst.org.in/index.php/pub/article/download/336/298",
"purpose": "text-mining",
"return_type": "application/pdf"
},
{
"url": "https://www.jst.org.in/index.php/pub/article/download/336/2501",
"purpose": "text-mining",
"return_type": "application/xml"
}
],
"abstract": {
"value": "The adsorption of Lead (II) from aqueous solution by chitosan-g-maleic anhydride-g-methacrylic acidcopolymer was investigated in fixed- bed column.The continuous adsorption varying the effect of flow rates, bed height and concentration and breakthrough curves was evaluated and it was also analyzed by dynamics models namely, Boharts and Adam, Thomas and Yoon and Nelson models at different conditions.The breakthrough data fitted well to Thomas and Yoon Nelson models with high correlation coefficient, R 2 is 0.9835. The highest bed capacity of chitosan-g-maleicanhydride-g-methacrylicacid adsorbent was obtained using 1 ml /min flow rate, 100 ppm inlet Pb metal ion concentration, and 3 cm bed height",
"lang": "en"
},
"license": {
"url": "https://creativecommons.org/licenses/by/4.0",
"start": "2020-07-30",
"applies_to": "vor"
},
"references": [
{
"key": "ref1",
"unstructured": "Kardashev, N. S., “Transmission of information by Extraterrestrial c ivilizations,” Soviet Astronomy, Vol. 8, No. 2, Sept. -Oct. 1964"
},
{
"key": "ref2",
"unstructured": "Lamb, David, The Search for Extraterrestrial Intelligence: A Philosophical Inquiry, Routledge, London & New York, 2001, p. 182"
},
{
"key": "ref3",
"doi": "10.1093/acprof:oso/9780195171815.001.0001",
"unstructured": "Basalla, George, Civilized Life in the Universe: Scientists on Intelligent Extraterrestrials,Oxford University Press, Oxford, 2006, p. 148"
},
{
"key": "ref4",
"unstructured": "Sagan, Carl, The Cosmic Connection: An Extraterrestrial Perspective, Cambridge University Press, 2000, Part Three, Chapter 34"
},
{
"key": "ref5",
"unstructured": "Kaku, Michio, The Physics of the Impossible, New York, et al.: Doubleday, 2008, p. 145"
},
{
"key": "ref6",
"unstructured": "Kaku, Michio, Physics of the Future, New York, et al.: Doubleday, 2011"
}
],
"record": {
"registrant": "Longman Publishers",
"registered": "2020-07-30",
"updated": "2026-09-26",
"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.2020.v5.i4.pp316-334</referentDoiName>
<primaryReferentType>Creation</primaryReferentType>
<registrationAgencyDoiName>10.0/smart-scholars-draft</registrationAgencyDoiName>
<issueDate>2026-10-04</issueDate>
<issueNumber>1</issueNumber>
<referentCreation>
<name primaryLanguage="en">
<value>Fixed-Bed Column Adsorption Studies of Lead (II) From Aqueous Solution Using Chitosan -G-Maleic Anhydride-G-Methacrylic Acidcopolymer</value>
<type>PrincipalTitle</type>
</name>
<identifier>
<nonUriValue>10.46243/jst.2020.v5.i4.pp316-334</nonUriValue>
<uri returnType="text/html" doesContentNegotiation="true">https://doi.org/10.46243/jst.2020.v5.i4.pp316-334</uri>
<type>DOI</type>
</identifier>
<identifier>
<uri returnType="text/html">https://www.jst.org.in/index.php/pub/article/view/336</uri>
<type>URI</type>
</identifier>
<identifier>
<uri>https://www.jst.org.in/index.php/pub/article/download/336/298</uri>
<type>URI</type>
</identifier>
<identifier>
<uri returnType="application/xml">https://www.jst.org.in/index.php/pub/article/download/336/2501</uri>
<type>URI</type>
</identifier>
<structuralType>Digital</structuralType>
<mode>Visual</mode>
<character>Language</character>
<type>JournalArticle</type>
<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>Volume 5</value>
<type>IssueNumber</type>
</referentCreationSequenceIdentifier>
<referentCreationSequenceIdentifier>
<value>316-334</value>
<type>PageNumber</type>
</referentCreationSequenceIdentifier>
</linkedCreation>
<language>en</language>
<languageOfReferentContent>
<language>en</language>
<languageOfReferentContentType>Original</languageOfReferentContentType>
</languageOfReferentContent>
<creationDate>
<date>2020-07-30</date>
<creationDateType>PublicationDate</creationDateType>
</creationDate>
</referentCreation>
</kernelMetadata>
