{"id":37474,"date":"2019-07-18T10:47:24","date_gmt":"2019-07-18T08:47:24","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=37474"},"modified":"2019-07-18T10:47:27","modified_gmt":"2019-07-18T08:47:27","slug":"detection-du-facteur-dencrassement-par-onde-de-coda-ultrasonore-lors-de-la-contamination-et-le-nettoyage-dun-substrat-solide","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/these\/detection-du-facteur-dencrassement-par-onde-de-coda-ultrasonore-lors-de-la-contamination-et-le-nettoyage-dun-substrat-solide.html","title":{"rendered":"D\u00e9tection du facteur d\u2019encrassement par onde de coda ultrasonore lors de la contamination et le nettoyage d\u2019un substrat solide"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_one_full-25347b0a799d5b9f7058434b2a9c3182\">\n.flex_column.av-av_one_full-25347b0a799d5b9f7058434b2a9c3182{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-av_one_full-25347b0a799d5b9f7058434b2a9c3182 av_one_full  avia-builder-el-0  avia-builder-el-no-sibling  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jy8fkx5w-ad5acc2d4ee1b281185c86862fdfeb15'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><blockquote>\n<h4><strong><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/03\/ico_these2.fw_.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-thumbnail wp-image-14684 alignleft\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/03\/ico_these2.fw_-80x80.png\" alt=\"\" width=\"80\" height=\"80\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/03\/ico_these2.fw_-80x80.png 80w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/03\/ico_these2.fw_-36x36.png 36w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/03\/ico_these2.fw_-180x180.png 180w\" sizes=\"auto, (max-width: 80px) 100vw, 80px\" \/><\/a>Bowei CHEN<br \/>\n<\/strong><\/h4>\n<p>Thesis defence<br \/>\n10\/07\/2019<br \/>\nPolytechnic University of Hauts-de-France<\/p>\n<\/blockquote>\n<h4><strong><br \/>\nSummary:<\/strong><\/h4>\n<p>Fouling of equipment occurs in many industrial sectors. For example, contamination of food contact surfaces caused by fouling results in considerable economic losses and increased public health risks. Fouling is generally cleaned using highly polluting chemicals. It is therefore important to develop devices that can monitor the formation\/elimination of fouling on these surfaces (without disrupting production) in order to reduce the microbiological risks and the environmental and economic impacts associated with cleaning processes. This work focuses on the detection of the fouling factor using a non-invasive ultrasonic method known as coda wave interferometry (CWI). This technique has been tested for different types of application (wax cleaning, detection of biofilm formation and cleaning of protein deposits). The results obtained are very promising and show that CWI is capable of detecting even a slight change in the fouling factor. In particular, the evolution of the decorrelation coefficient for each application shows good agreement with the actual fouling state of the surface. Overall, this work provides a body of evidence showing that the CWI method is applicable to monitoring the fouling factor of deposits on solid surfaces.<\/p>\n<h4><strong>JURY :<\/strong><\/h4>\n<p>- Emmanuel Moulin, Professor, Universit\u00e9 Polytechnique Hauts-de-France, Thesis supervisor<\/p>\n<p>- Emmanuel Le Cl\u00e9zio, Professor, University of Montpellier, Rapporteur<\/p>\n<p>- Romain Jeantet, Professor, Agrocampus Ouest, Rapporteur<\/p>\n<p>- Guy Feuillard, Professor, INSA Centre Val de Loire, Examiner<\/p>\n<p>- Marieke Van Audenhaege, Research Officer, Head of Dairy Technology, SODIAAL, Examiner<\/p>\n<p>- Guillaume Delaplace, Research Director, INRA, Examiner<\/p>\n<p>- Doroth\u00e9e Callens-Debavelaere, Senior Lecturer, Universit\u00e9 Polytechnique Hauts-de-France, Examiner<\/p>\n<p>- Pierre Campistron, Senior Lecturer, Universit\u00e9 Polytechnique Hauts-de-France, Examiner<\/p>\n<\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[199],"tags":[],"class_list":["post-37474","post","type-post","status-publish","format-standard","hentry","category-these"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/37474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=37474"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/37474\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=37474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=37474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=37474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}