{"id":37367,"date":"2019-07-08T16:10:20","date_gmt":"2019-07-08T14:10:20","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=37367"},"modified":"2019-07-19T09:18:07","modified_gmt":"2019-07-19T07:18:07","slug":"soutenance-de-these-bowen-chei-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\/actualites\/soutenance-de-these-bowen-chei-detection-du-facteur-dencrassement-par-onde-de-coda-ultrasonore-lors-de-la-contamination-et-le-nettoyage-dun-substrat-solide.html","title":{"rendered":"Soutenance de th\u00e8se: Bowen CHEI \u2013 D\u00e9tection du facteur d\u2019encrassement par onde de coda ultrasonore lors de la contamination et le nettoyage d\u2019un substrat solide"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_1bxifp65py1ge\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-37367'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jxugmvo8-c95c509a7d247fef035d8467235a23fe\">\n#top .av-special-heading.av-jxugmvo8-c95c509a7d247fef035d8467235a23fe{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-jxugmvo8-c95c509a7d247fef035d8467235a23fe .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-jxugmvo8-c95c509a7d247fef035d8467235a23fe .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-jxugmvo8-c95c509a7d247fef035d8467235a23fe av-special-heading-h2  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >THESIS: Detection of fouling factor by ultrasonic coda wave during contamination and cleaning of a solid substrate<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-2f4600354c0449b610997916bbd9b6bc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<h5><strong style=\"font-size: 16px;\">Bowen CHEI\u00a0<\/strong><\/h5>\n<p><strong>10\/07\/2019<br \/>\n<\/strong>Amphitheatre IEMN Dpt OAE - UPHF - Valenciennes<\/p>\n<\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-6  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<h5><strong><span style=\"color: #800000;\">Jury:<br \/>\n<\/span><\/strong><\/h5>\n<p><strong>Rapporteurs :<\/strong><\/p>\n<ul>\n<li>Emmanuel Le Cl\u00e9zio, Professor, University of Montpellier<\/li>\n<li>Romain Jeantet, Professor, Agrocampus Ouest<\/li>\n<\/ul>\n<p><strong>Examiners :<\/strong><\/p>\n<ul>\n<li>Guy Feuillard, Professor, INSA Centre Val de Loire<\/li>\n<li>Marieke Van Audenhaege, Research Officer, Head of the Dairy Technology Unit, SODIAAL<\/li>\n<li>Guillaume Delaplace, Director of Research, INRA<\/li>\n<li>Doroth\u00e9e Callens-Debavelaere, Senior Lecturer, Universit\u00e9 Polytechnique Hauts-de-France<\/li>\n<li>Pierre Campistron, Senior Lecturer, Universit\u00e9 Polytechnique Hauts-de-France<\/li>\n<\/ul>\n<p><strong>Thesis supervisor :<\/strong><\/p>\n<ul>\n<li>Emmanuel Moulin, Professor, Universit\u00e9 Polytechnique Hauts-de-France<\/li>\n<\/ul>\n<h5>Summary:<\/h5>\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<\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":37369,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-37367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/37367","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=37367"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/37367\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media\/37369"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=37367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=37367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=37367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}