<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31402848</termId><termName>heat transmission</termName><termType>PT</termType><termNote><![CDATA[ Transfer of heat from one point to another due to the tendency of heat to flow from an area of higher temperature to an area of lower temperature. ]]></termNote><termCreatedDate>2026-03-30 20:48:20</termCreatedDate><relation><relationType>UF</relationType><termId>31402849</termId><termName>flow, heat</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31402850</termId><termName>heat flow</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31402851</termId><termName>transmission, heat</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31361752</termId><termName>heat-related concepts</termName><termType>PT</termType></relation></term>  </Zthes>