<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31361743</termId><termName>heat</termName><termType>PT</termType><termNote><![CDATA[ Energy in the process of transfer between a system and its surroundings as a result of temperature differences. ]]></termNote><termCreatedDate>2026-03-30 20:37:36</termCreatedDate><relation><relationType>BT</relationType><termId>31327455</termId><termName>energy</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31402805</termId><termName>thermoelectricity</termName><termType>PT</termType></relation></term>  </Zthes>