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        <link:definition>055 - Disclosure - Note 11 - Business Segment Information (Detail) - Components of segment performance</link:definition> 
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        <link:definition>057 - Disclosure - Note 13 - Fire at Manufacturing Facility (Detail)</link:definition>  
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        <link:definition>058 - Disclosure - Note 14 - Recent Accounting Pronouncements and Developments (Detail)</link:definition> 
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  <xs:element name="StockOptionsWarrantsMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ulbi_StockOptionsWarrantsMember"/>   
  <xs:element name="CommunicationsSystemsMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ulbi_CommunicationsSystemsMember"/>     
  <xs:element name="NonQualifiedStockOptionsMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ulbi_NonQualifiedStockOptionsMember"/> 
  <xs:element name="EnergyServicesBusinessMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ulbi_EnergyServicesBusinessMember"/>  
  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ulbi_DocumentAndEntityInformationAbstract"/> 
</xs:schema>   





