{"id":15679,"date":"2025-04-22T15:30:48","date_gmt":"2025-04-22T13:30:48","guid":{"rendered":"https:\/\/micromega-dynamics.com\/project\/astronomy\/"},"modified":"2025-04-22T15:30:48","modified_gmt":"2025-04-22T13:30:48","slug":"astronomy","status":"publish","type":"project","link":"https:\/\/micromega-dynamics.com\/fr\/project\/astronomy\/","title":{"rendered":"Astronomie"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbHeader\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/micromega-dynamics.com\/files\/uploads\/2024\/11\/Cover-Usecase-1-1.jpg\u00a0\u00bb parallax=\u00a0\u00bbon\u00a0\u00bb custom_padding=\u00a0\u00bb8vw||0vw||false|false\u00a0\u00bb border_radii=\u00a0\u00bboff|||0vw|0vw\u00a0\u00bb collapsed=\u00a0\u00bbon\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row custom_padding_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb max_width=\u00a0\u00bb1800px\u00a0\u00bb custom_padding=\u00a0\u00bb|237px||||\u00a0\u00bb custom_padding_tablet=\u00a0\u00bb|237px||||\u00a0\u00bb custom_padding_phone=\u00a0\u00bb|0px|||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.22.0&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bb2a1fa9e3-278a-4815-a8b6-86e3861ec73b\u00a0\u00bb text_text_color=\u00a0\u00bb#3C9100&Prime; header_text_color=\u00a0\u00bb#ffffff\u00a0\u00bb header_font_size=\u00a0\u00bb56px\u00a0\u00bb header_4_font=\u00a0\u00bb|600|||||||\u00a0\u00bb header_4_text_color=\u00a0\u00bb#ffffff\u00a0\u00bb header_4_font_size=\u00a0\u00bb23px\u00a0\u00bb background_color=\u00a0\u00bbrgba(10,10,10,0.5)\u00a0\u00bb max_width=\u00a0\u00bb1440px\u00a0\u00bb custom_margin=\u00a0\u00bb||||true|true\u00a0\u00bb custom_padding=\u00a0\u00bb10px|10px|10px|10px|true|true\u00a0\u00bb border_radii=\u00a0\u00bbon|5px|5px|5px|5px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h1>Astronomie<\/h1>\n<h4><span class=\"OYPEnA font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\">Services d&rsquo;ing\u00e9nierie : Actionneurs<\/span><\/h4>\n<p>[\/et_pb_text][et_pb_button button_url=\u00a0\u00bb@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjEzMjczIiwiZW5hYmxlX2h0bWwiOiJvZmYifX0=@\u00a0\u00bb button_text=\u00a0\u00bbContactez nous\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4&Prime; _dynamic_attributes=\u00a0\u00bbbutton_url\u00a0\u00bb _module_preset=\u00a0\u00bb8904402d-84ed-403f-be1c-6de59b1d4dcb\u00a0\u00bb button_bg_color=\u00a0\u00bb#0071BB\u00a0\u00bb button_border_radius=\u00a0\u00bb5px\u00a0\u00bb button_on_hover=\u00a0\u00bboff\u00a0\u00bb custom_padding=\u00a0\u00bb11px|32px|11px|32px|true|true\u00a0\u00bb hover_enabled=\u00a0\u00bb0&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0&Prime;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbAbout\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.0&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||3px|||\u00a0\u00bb collapsed=\u00a0\u00bbon\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb2_3,1_3&Prime; _builder_version=\u00a0\u00bb4.24.0&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb max_width=\u00a0\u00bb1800px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb2_3&Prime; _builder_version=\u00a0\u00bb4.22.0&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbd4beb851-2ed0-4803-97e0-f2d50020575e\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2><span class=\"OYPEnA font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\">Astronomie<\/span><\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bb52afce6b-0212-4de0-94d1-88b79e261070&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Pour atteindre la tr\u00e8s haute r\u00e9solution n\u00e9cessaire \u00e0 l&rsquo;observation d&rsquo;objets astronomiques lointains, les miroirs des grands t\u00e9lescopes astronomiques doivent conserver leur forme en toutes circonstances, malgr\u00e9 des changements continus d&rsquo;orientation et de temp\u00e9rature. Pour atteindre cet objectif, les miroirs sont g\u00e9n\u00e9ralement tr\u00e8s \u00e9pais, ce qui les rend co\u00fbteux, lourds et n\u00e9cessite des structures m\u00e9caniques tr\u00e8s solides et rigides pour les supporter. De nos jours, les fabricants de t\u00e9lescopes privil\u00e9gient les miroirs plus fins\/l\u00e9gers qui sont \u00e9quip\u00e9s d&rsquo;un r\u00e9seau d&rsquo;actionneurs de mise en forme des miroirs pour compenser leur rigidit\u00e9 insuffisante, afin de maintenir constamment la surface r\u00e9fl\u00e9chissante du miroir dans un \u00e9tat aussi parfait que possible.[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.22.0&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/micromega-dynamics.com\/files\/uploads\/2024\/11\/ry-10.jpg\u00a0\u00bb alt=\u00a0\u00bbAstronomie Contr\u00f4le des vibrations\u00a0\u00bb title_text=\u00a0\u00bbAstronomie Contr\u00f4le des vibrations\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb34px|||||\u00a0\u00bb border_radii=\u00a0\u00bbon|8px|8px|8px|8px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#f9f9f9&Prime; custom_padding=\u00a0\u00bb14px||20px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbd4beb851-2ed0-4803-97e0-f2d50020575e\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3><strong><span class=\"OYPEnA font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\">Ce que nous faisons<\/span><\/strong><\/h3>\n<div class=\"flex max-w-full flex-col flex-grow\">\n<div data-message-author-role=\"assistant\" data-message-id=\"c7f50d3f-bbc0-43e0-9f03-e40e25aa0859\" dir=\"auto\" class=\"min-h-8 text-message flex w-full flex-col items-end gap-2 whitespace-normal break-words [.text-message+&amp;]:mt-5\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<ul>\n<li>Conception et fabrication d&rsquo;<a href=\"https:\/\/micromega-dynamics.com\/engineering-services\/actuators\/\" title=\"Conception et fabrication d'actionneurs de mise en forme de miroirs sur la base de sp\u00e9cifications clients tr\u00e8s strictes (gamme et pr\u00e9cision de la force, dissipation de puissance, rigidit\u00e9 parasite...). \">actionneurs pour<\/a> le fa\u00e7onnage de miroirs<span> <\/span><span> <\/span> sur la base de sp\u00e9cifications tr\u00e8s strictes du client (plage et pr\u00e9cision de la force, dissipation de puissance, rigidit\u00e9 parasite, etc.)<\/li>\n<li><a href=\"https:\/\/micromega-dynamics.com\/fr\/services-dingenierie\/services-dingenierie-etalonnage\/\" title=\"\u00c9talonnage des actionneurs de mise en forme des miroirs\">\u00c9talonnage<\/a><span> <\/span>des actionneurs de mise en forme des miroirs<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbd4beb851-2ed0-4803-97e0-f2d50020575e\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3><strong><span class=\"OYPEnA font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\">Avantages<\/span><\/strong><\/h3>\n<div class=\"flex max-w-full flex-col flex-grow\">\n<div data-message-author-role=\"assistant\" data-message-id=\"c7f50d3f-bbc0-43e0-9f03-e40e25aa0859\" dir=\"auto\" class=\"min-h-8 text-message flex w-full flex-col items-end gap-2 whitespace-normal break-words [.text-message+&amp;]:mt-5\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<ul>\n<li>Savoir-faire int\u00e9gr\u00e9 (m\u00e9canique, \u00e9lectronique embarqu\u00e9e, logiciels en temps r\u00e9el)<\/li>\n<li>D\u00e9veloppement de capteurs et d&rsquo;actionneurs d\u00e9di\u00e9s avec une \u00e9lectronique de conditionnement et de pilotage<\/li>\n<li>Qualification du m\u00e9canisme (c&rsquo;est-\u00e0-dire essais de performance, de temp\u00e9rature, de vibration)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb header_2_font_size=\u00a0\u00bb54px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: center;\">Cas d&rsquo;utilisation<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bb52afce6b-0212-4de0-94d1-88b79e261070&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>T\u00e9lescope solaire DKIST<\/h2>\n<p>Le Daniel K. Inouye Solar Telescope (DKIST) est le<a href=\"https:\/\/www.nso.edu\/telescopes\/dki-solar-telescope\/\" title=\"Le plus grand t\u00e9lescope solaire du monde\">plus grand t\u00e9lescope solaire au monde (<\/a><span> <\/span>).<\/p>\n<p>La conception et la fabrication de son miroir primaire de 4,2 m de diam\u00e8tre et de la cellule qui l&rsquo;entoure ont \u00e9t\u00e9 confi\u00e9es \u00e0 la soci\u00e9t\u00e9<span> <\/span><a href=\"https:\/\/www.amos.be\/project\/mirror-cell-for-dkist\" title=\"AMOS\">AMOS<\/a>.<\/p>\n<p>En tant que sous-traitant d&rsquo;AMOS, Micromega a con\u00e7u et fabriqu\u00e9 les 142 actionneurs hydrauliques et pneumatiques qui corrigent en permanence la forme du mince miroir primaire avec une pr\u00e9cision sup\u00e9rieure \u00e0 45 nm RMS.<\/p>\n<p>La cellule a \u00e9t\u00e9 int\u00e9gr\u00e9e et test\u00e9e dans le t\u00e9lescope en 2017. En janvier 2020, le t\u00e9lescope solaire Daniel K. Inouye a d\u00e9voil\u00e9 les images les plus d\u00e9taill\u00e9es jamais prises de la surface de notre soleil. <\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/micromega-dynamics.com\/files\/uploads\/2024\/11\/ry-11.jpg\u00a0\u00bb alt=\u00a0\u00bbAstronomie Contr\u00f4le et surveillance des vibrations\u00a0\u00bb title_text=\u00a0\u00bbAstronomie Contr\u00f4le et surveillance des vibrations\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb0px|||||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.24.3&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb header_3_font=\u00a0\u00bb|600|||||||\u00a0\u00bb header_3_font_size=\u00a0\u00bb31px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3>D\u00e9couvrez d&rsquo;autres projets<\/h3>\n<p>[\/et_pb_text][et_pb_portfolio fullwidth=\u00a0\u00bboff\u00a0\u00bb posts_number=\u00a0\u00bb4&Prime; include_categories=\u00a0\u00bbcurrent\u00a0\u00bb show_categories=\u00a0\u00bboff\u00a0\u00bb show_pagination=\u00a0\u00bboff\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb title_font=\u00a0\u00bb|700|||||||\u00a0\u00bb title_line_height=\u00a0\u00bb1.8em\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_portfolio][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronomie Services d&rsquo;ing\u00e9nierie : ActionneursAstronomiePour atteindre la tr\u00e8s haute r\u00e9solution n\u00e9cessaire \u00e0 l&rsquo;observation d&rsquo;objets astronomiques lointains, les miroirs des grands t\u00e9lescopes astronomiques doivent conserver leur forme en toutes circonstances, malgr\u00e9 des changements continus d&rsquo;orientation et de temp\u00e9rature. Pour atteindre cet objectif, les miroirs sont g\u00e9n\u00e9ralement tr\u00e8s \u00e9pais, ce qui les rend co\u00fbteux, lourds et n\u00e9cessite [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":13827,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"project_category":[87],"project_tag":[],"class_list":["post-15679","project","type-project","status-publish","has-post-thumbnail","hentry","project_category-surveillance-des-vibrations"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Astronomie: Optique Adaptative Actionneurs - Micromega Dynamics<\/title>\n<meta name=\"description\" content=\"Les miroirs l\u00e9gers des t\u00e9lescopes utilisent des actionneurs pour maintenir une r\u00e9flexion parfaite, en s&#039;adaptant aux changements d&#039;orientation et de temp\u00e9rature.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/micromega-dynamics.com\/fr\/project\/astronomy\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Astronomie\" \/>\n<meta property=\"og:description\" content=\"Les miroirs l\u00e9gers des t\u00e9lescopes utilisent des actionneurs pour maintenir une r\u00e9flexion parfaite, en s&#039;adaptant aux changements d&#039;orientation et de temp\u00e9rature.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/micromega-dynamics.com\/fr\/project\/astronomy\/\" \/>\n<meta property=\"og:site_name\" content=\"Micromega Dynamics\" \/>\n<meta property=\"og:image\" content=\"https:\/\/micromega-dynamics.com\/files\/uploads\/2024\/11\/ry-1-2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/micromega-dynamics.com\\\/fr\\\/project\\\/astronomy\\\/\",\"url\":\"https:\\\/\\\/micromega-dynamics.com\\\/fr\\\/project\\\/astronomy\\\/\",\"name\":\"Astronomie: Optique Adaptative Actionneurs - 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