uneven fractureunfoldingungaged sitesungarettiiteungemachiteungursaiteuniamial stress or stress or stressuniaxialuniaxial apparatusuniaxial bendingunicluster designunicomponent systemunidimensionalityunidirectional flowunificationuniformuniform channeluniform convergenceuniform developmentuniform flowuniform gradationuniform metricuniform normuniform permeationuniform sampling procedureuniform strainuniform tight injectionuniformitarianuniformitarianismuniformityuniformity trialsuniformizationuniformly absolutely convergent seriesuniformly consistent testuniformly convergent sequenceuniformly convergent seriesuniformly gradeduniformly progressive flowsuniformly progressive wavesunilateralunimodalunimodal regressionunimodalityuninterrupted flowunionunion of sets or union of set or union of setunionidunique factorizationunique property reference number or uprn or uprnuniqueness condition
