<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rato, R.T.</style></author><author><style face="normal" font="default" size="100%">Manuel Ortigueira</style></author><author><style face="normal" font="default" size="100%">Arnaldo Batista</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On the HHT, its problems, and some solutions</style></title><secondary-title><style face="normal" font="default" size="100%">Mechanical Systems and Signal Processing</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">August</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oa.uninova.pt/1503/</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">6</style></number><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><volume><style face="normal" font="default" size="100%">22</style></volume><pages><style face="normal" font="default" size="100%">1374–1394</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The empirical mode decomposition (EMD) is reviewed and some questions related to its effective performance are discussed. Its interpretation in terms of AM?FM modulation is done. Solutions for its drawbacks are proposed. Numerical simulations are carried out to empirically evaluate the proposed modified EMD.&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">&lt;p&gt;Special Issue: Mechatronics&lt;/p&gt;
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