اخطار‌های زیر رخ داد:
Warning [2] Undefined array key "extra" - Line: 100 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 100 errorHandler->error
/inc/plugins/google_seo.php 317 require_once
/inc/class_plugins.php 38 require_once
/inc/init.php 239 pluginSystem->load
/global.php 20 require_once
/showthread.php 28 require_once
Warning [2] Undefined array key "parent" - Line: 447 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 447 errorHandler->error
/inc/plugins/google_seo/url.php 1144 google_seo_url_create
/inc/plugins/google_seo/url.php 174 google_seo_url_hook
/inc/plugins/google_seo.php 317 require_once
/inc/class_plugins.php 38 require_once
/inc/init.php 239 pluginSystem->load
/global.php 20 require_once
/showthread.php 28 require_once
Warning [2] Undefined array key "pid" - Line: 1147 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 1147 errorHandler->error
/inc/plugins/google_seo/url.php 174 google_seo_url_hook
/inc/plugins/google_seo.php 317 require_once
/inc/class_plugins.php 38 require_once
/inc/init.php 239 pluginSystem->load
/global.php 20 require_once
/showthread.php 28 require_once
Warning [2] Undefined array key "lockoutexpiry" - Line: 94 - File: global.php PHP 8.2.4 (Linux)
File Line Function
/global.php 94 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined array key "pid" - Line: 129 - File: inc/plugins/google_seo/redirect.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/redirect.php 129 errorHandler->error
/inc/class_plugins.php 142 google_seo_redirect_hook
/global.php 100 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined array key "page" - Line: 144 - File: inc/plugins/google_seo/redirect.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/redirect.php 144 errorHandler->error
/inc/class_plugins.php 142 google_seo_redirect_hook
/global.php 100 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined array key "action" - Line: 145 - File: inc/plugins/google_seo/redirect.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/redirect.php 145 errorHandler->error
/inc/class_plugins.php 142 google_seo_redirect_hook
/global.php 100 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined array key "page" - Line: 151 - File: inc/plugins/google_seo/redirect.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/redirect.php 151 errorHandler->error
/inc/class_plugins.php 142 google_seo_redirect_hook
/global.php 100 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Constant IN_MYBB already defined - Line: 9 - File: affiliate.php PHP 8.2.4 (Linux)
File Line Function
[PHP]   errorHandler->error
/affiliate.php 9 define
/global.php 102 require_once
/showthread.php 28 require_once
Warning [2] Undefined variable $affiliate - Line: 44 - File: affiliate.php PHP 8.2.4 (Linux)
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/affiliate.php 44 errorHandler->error
/global.php 102 require_once
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$today_rel - Line: 474 - File: inc/functions.php PHP 8.2.4 (Linux)
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/inc/functions.php 474 errorHandler->error
/global.php 476 my_date
/showthread.php 28 require_once
Warning [2] Undefined array key "lockoutexpiry" - Line: 555 - File: global.php PHP 8.2.4 (Linux)
File Line Function
/global.php 555 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined array key "avatartype" - Line: 816 - File: global.php PHP 8.2.4 (Linux)
File Line Function
/global.php 816 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined array key "avatartype" - Line: 816 - File: global.php PHP 8.2.4 (Linux)
File Line Function
/global.php 816 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined variable $myalerts_js - Line: 104 - File: global.php(874) : eval()'d code PHP 8.2.4 (Linux)
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/global.php(874) : eval()'d code 104 errorHandler->error
/global.php 874 eval
/showthread.php 28 require_once
Warning [2] Undefined variable $awaitingusers - Line: 495 - File: global.php(877) : eval()'d code PHP 8.2.4 (Linux)
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/global.php(877) : eval()'d code 495 errorHandler->error
/global.php 877 eval
/showthread.php 28 require_once
Warning [2] Undefined variable $bam_announcements - Line: 497 - File: global.php(877) : eval()'d code PHP 8.2.4 (Linux)
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/global.php(877) : eval()'d code 497 errorHandler->error
/global.php 877 eval
/showthread.php 28 require_once
Warning [2] Undefined array key "style" - Line: 942 - File: global.php PHP 8.2.4 (Linux)
File Line Function
/global.php 942 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$lang_select_default - Line: 5211 - File: inc/functions.php PHP 8.2.4 (Linux)
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/inc/functions.php 5211 errorHandler->error
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions.php 5231 is_member
/global.php 942 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$hrz_like_us_google_plus - Line: 18 - File: global.php(971) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/global.php(971) : eval()'d code 18 errorHandler->error
/global.php 971 eval
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$hrz_like_us_facebook - Line: 19 - File: global.php(971) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/global.php(971) : eval()'d code 19 errorHandler->error
/global.php 971 eval
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$hrz_like_us_twitter - Line: 20 - File: global.php(971) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/global.php(971) : eval()'d code 20 errorHandler->error
/global.php 971 eval
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$hrz_like_us_pinterest - Line: 21 - File: global.php(971) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/global.php(971) : eval()'d code 21 errorHandler->error
/global.php 971 eval
/showthread.php 28 require_once
Warning [2] Undefined variable $myalerts_modal - Line: 61 - File: global.php(971) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/global.php(971) : eval()'d code 61 errorHandler->error
/global.php 971 eval
/showthread.php 28 require_once
Warning [2] Undefined variable $choosekq - Line: 785 - File: inc/plugins/changstats.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/changstats.php 785 errorHandler->error
/inc/class_plugins.php 142 changstats_maindisplay
/global.php 1165 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined variable $listtab - Line: 800 - File: inc/plugins/changstats.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/changstats.php 800 errorHandler->error
/inc/class_plugins.php 142 changstats_maindisplay
/global.php 1165 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined variable $chooselatestposts - Line: 3 - File: inc/plugins/changstats.php(801) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/changstats.php(801) : eval()'d code 3 errorHandler->error
/inc/plugins/changstats.php 801 eval
/inc/class_plugins.php 142 changstats_maindisplay
/global.php 1165 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined variable $choosetop_user - Line: 4 - File: inc/plugins/changstats.php(823) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/changstats.php(823) : eval()'d code 4 errorHandler->error
/inc/plugins/changstats.php 823 eval
/inc/class_plugins.php 142 changstats_maindisplay
/global.php 1165 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined variable $choosetop_forum - Line: 4 - File: inc/plugins/changstats.php(824) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/changstats.php(824) : eval()'d code 4 errorHandler->error
/inc/plugins/changstats.php 824 eval
/inc/class_plugins.php 142 changstats_maindisplay
/global.php 1165 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined variable $autorefresh - Line: 73 - File: inc/plugins/changstats.php(842) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/changstats.php(842) : eval()'d code 73 errorHandler->error
/inc/plugins/changstats.php 842 eval
/inc/class_plugins.php 142 changstats_maindisplay
/global.php 1165 pluginSystem->run_hooks
/showthread.php 28 require_once
Warning [2] Undefined array key 3 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1381 google_seo_url_cache
/inc/functions.php 6061 google_seo_url_forum
/inc/functions.php 4486 get_forum_link
/inc/functions.php 4458 build_forum_breadcrumb
/showthread.php 454 build_forum_breadcrumb
Warning [2] Trying to access array offset on value of type null - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1381 google_seo_url_cache
/inc/functions.php 6061 google_seo_url_forum
/inc/functions.php 4486 get_forum_link
/inc/functions.php 4458 build_forum_breadcrumb
/showthread.php 454 build_forum_breadcrumb
Warning [2] Undefined array key 24 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1381 google_seo_url_cache
/inc/functions.php 6061 google_seo_url_forum
/inc/functions.php 4479 get_forum_link
/showthread.php 454 build_forum_breadcrumb
Warning [2] Undefined array key "mybb" - Line: 2006 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 2006 errorHandler->error
/inc/functions_indicators.php 41 my_set_array_cookie
/showthread.php 665 mark_thread_read
Warning [2] Trying to access array offset on value of type null - Line: 488 - File: inc/db_mysqli.php PHP 8.2.4 (Linux)
File Line Function
/inc/db_mysqli.php 488 errorHandler->error
/showthread.php 758 DB_MySQLi->fetch_field
Warning [2] Undefined property: MyLanguage::$ratings_update_error - Line: 5 - File: showthread.php(768) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(768) : eval()'d code 5 errorHandler->error
/showthread.php 768 eval
Warning [2] Undefined array key 1 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1347 google_seo_url_cache
/inc/functions.php 5978 google_seo_url_profile
/inc/functions_post.php 251 get_profile_link
/showthread.php 1114 build_postbit
Warning [2] Trying to access array offset on value of type null - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1347 google_seo_url_cache
/inc/functions.php 5978 google_seo_url_profile
/inc/functions_post.php 251 get_profile_link
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "additionalgroups" - Line: 7447 - File: inc/functions.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions.php 7447 errorHandler->error
/inc/functions_user.php 847 is_member
/inc/functions_post.php 416 purgespammer_show
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "profilefield" - Line: 5 - File: inc/functions_post.php(484) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php(484) : eval()'d code 5 errorHandler->error
/inc/functions_post.php 484 eval
/showthread.php 1114 build_postbit
Warning [2] Trying to access array offset on value of type null - Line: 198 - File: inc/plugins/google_seo.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo.php 198 errorHandler->error
/inc/plugins/google_seo/url.php 1452 google_seo_tid
/inc/functions.php 6142 google_seo_url_post
/inc/functions_post.php 667 get_post_link
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "canonlyreplyownthreads" - Line: 672 - File: inc/functions_post.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php 672 errorHandler->error
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "showimages" - Line: 757 - File: inc/functions_post.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php 757 errorHandler->error
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "showvideos" - Line: 762 - File: inc/functions_post.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php 762 errorHandler->error
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "showimages" - Line: 800 - File: inc/functions_post.php PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php 800 errorHandler->error
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "thxdsp_outline" - Line: 1 - File: inc/plugins/thx.php(342) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/thx.php(342) : eval()'d code 1 errorHandler->error
/inc/plugins/thx.php 342 eval
/inc/class_plugins.php 142 thx
/inc/functions_post.php 842 pluginSystem->run_hooks
/showthread.php 1114 build_postbit
Warning [2] Undefined array key 2 - Line: 89 - File: inc/plugins/phptpl.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/phptpl.php 89 errorHandler->error
[PHP]   {closure}
/inc/plugins/phptpl.php 87 preg_replace_callback_array
/inc/plugins/phptpl.php(70) : eval()'d code 19 phptpl_parsetpl
/inc/functions_post.php 887 phptpl_templates->get
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "newpoints_postbit" - Line: 27 - File: inc/functions_post.php(887) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php(887) : eval()'d code 27 errorHandler->error
/inc/functions_post.php 887 eval
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "tyl_display" - Line: 52 - File: inc/functions_post.php(887) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php(887) : eval()'d code 52 errorHandler->error
/inc/functions_post.php 887 eval
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "thankyoulike_data" - Line: 52 - File: inc/functions_post.php(887) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php(887) : eval()'d code 52 errorHandler->error
/inc/functions_post.php 887 eval
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "button_tyl" - Line: 57 - File: inc/functions_post.php(887) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php(887) : eval()'d code 57 errorHandler->error
/inc/functions_post.php 887 eval
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "thanks" - Line: 57 - File: inc/functions_post.php(887) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/inc/functions_post.php(887) : eval()'d code 57 errorHandler->error
/inc/functions_post.php 887 eval
/showthread.php 1114 build_postbit
Warning [2] Undefined array key "canonlyviewownthreads" - Line: 1125 - File: showthread.php PHP 8.2.4 (Linux)
File Line Function
/showthread.php 1125 errorHandler->error
Warning [2] Undefined array key 2992 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1347 google_seo_url_cache
/inc/functions.php 5978 google_seo_url_profile
/inc/functions.php 6046 get_profile_link
/showthread.php 1179 build_profile_link
Warning [2] Undefined array key 8251 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1412 google_seo_url_cache
/inc/functions.php 6093 google_seo_url_thread
/showthread.php 1194 get_thread_link
Warning [2] Undefined array key "threadprefix" - Line: 4 - File: showthread.php(1212) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1212) : eval()'d code 4 errorHandler->error
/showthread.php 1212 eval
Warning [2] Undefined array key 17 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1347 google_seo_url_cache
/inc/functions.php 5978 google_seo_url_profile
/inc/functions.php 6046 get_profile_link
/showthread.php 1179 build_profile_link
Warning [2] Undefined array key 5859 - Line: 833 - File: inc/plugins/google_seo/url.php PHP 8.2.4 (Linux)
File Line Function
/inc/plugins/google_seo/url.php 833 errorHandler->error
/inc/plugins/google_seo/url.php 1412 google_seo_url_cache
/inc/functions.php 6093 google_seo_url_thread
/showthread.php 1194 get_thread_link
Warning [2] Undefined array key "threadprefix" - Line: 4 - File: showthread.php(1212) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1212) : eval()'d code 4 errorHandler->error
/showthread.php 1212 eval
Warning [2] Undefined array key "invisible" - Line: 1555 - File: showthread.php PHP 8.2.4 (Linux)
File Line Function
/showthread.php 1555 errorHandler->error
Warning [2] Undefined property: MyLanguage::$save_changes - Line: 11 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 11 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$cancel_edit - Line: 12 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 12 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_edit_update_error - Line: 13 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 13 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_reply_post_error - Line: 14 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 14 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_delete_error - Line: 15 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 15 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_delete_success - Line: 16 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 16 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_delete_thread_success - Line: 17 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 17 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_restore_error - Line: 18 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 18 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$quick_restore_success - Line: 19 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 19 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined array key "g33k_thankyoulike_enabled" - Line: 31 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 31 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined array key "g33k_thankyoulike_displaygrowl" - Line: 32 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 32 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined array key "g33k_thankyoulike_collapsible" - Line: 33 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 33 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$tyl_send - Line: 35 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
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/showthread.php(1587) : eval()'d code 35 errorHandler->error
/showthread.php 1587 eval
Warning [2] Undefined property: MyLanguage::$tyl_remove - Line: 36 - File: showthread.php(1587) : eval()'d code PHP 8.2.4 (Linux)
File Line Function
/showthread.php(1587) : eval()'d code 36 errorHandler->error
/showthread.php 1587 eval
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بازسازی سطوح صدمه دیده بانوذرات
#1


تاریخ درج : 91/01/28

بازسازي سطوح صدمه ديده با نانوذرات

محققان در آمريکا براي تعمير نقايص نانواندازه با استفاده از ميکروکپسول‌هاي مبتني بر روغن که با محلول نانوذره‌اي پر شده‌اند، روش جديدي ارائه کرده‌اند. اين ميکروکپسول‌ها روي يک سطح مي‌غلتند يا سُر مي‌خورند، و روي شکاف‌ها يا نقايصي که با آنها مواجه مي‌شوند، مي‌ايستند و با رهاسازي محموله نانوذره‌اي خود داخل آنها تعميرشان مي‌کنند. اين تکنيک مي‌تواند در صنعت و تحقيقات کاربردهاي عملي بسياري داشته باشد، زيرا با ترسيب مواد حسگري داخل نواحي آسيب‌ديده، نياز به روکش‌دهي تمام بستر صدمه‌ديده را از بين مي‌برد.

اين تکنيک بوسيله گروهي از محققان به رهبري تود اِمريک در دانشگاه ماساچوست و آنا بالاز در دانشگاه پترزبورگ، ارائه شده است. طبق گفته امريک، آنها با استفاده از شبيه‌سازي‌هاي کامپيوتري، پيش‌بيني کردند که اگر نانوذرات در نوع خاصي از ميکروکپسول‌ها نگه‌داري شوند؛ مي‌توانند يک سطح را کاوش کرده و اين نانوذرات را در نواحي ويژه‌اي رها کنند.

a) تصوير نوري از يک بستر شکاف‌داري (PDMS اکسيدشده – سطح) که در اين آزمايش‌ها استفاده شده‌اند (ميله مقياس 500 ميکرومتر است). b) پليمر PCOE-graft-PC استفاده شده براي پايداري قطره‌ها و کپسوله‌سازي نانوذرات. c) صحنه‌اي از يک شبيه‌سازي که نشان مي‌دهد که نانوذرات (ذرات آبي) داخل يک شکاف ترسيب مي‌شوند و ميکروکپسول به سمت شکاف بعدي مي‌غلتد (پيکان قرمز). d) تصوير فلورسانس يک بستر بعد از ترسيب نانوذرات داخل شکاف‌ها (ميله مقياس 100 ميکرومتر).
امريک توضيح مي‌دهد: "اين راهکار بطور عملي بخوبي براي تعمير سطوح آسيب‌ديده‌اي استفاده شد که نواحي معيوب روي آنها در مقايسه با قسمت‌هاي آسيب‌نديده مشخصه‌هاي بسيار متفاوتي از لحاظ ريخت‌شناسي، خواص خيس‌شوندگي، زبري و عامليت شيميايي داشتند."

اين محققان با استفاده از يک ماده فعال سطحي پليمري که قطره‌هاي روغن را در آب پايدار مي‌کند، نانوذرات سلنيد کادميوم را به طريقي کپسوله کردند که اين نانوذرات بتوانند در مواقع لازم رها شوند. چنين کاري ممکن بود، زيرا ديواره‌هاي اين کپسول‌ها بسيار نازک بودند (در حد قطر خود اين نانوذرات).

اين محققان سپس متوجه شدند که اين کپسول‌ها روي سطوح آسيب‌ديده مي‌غلتند يا سُر مي‌خورند و بطور انتخاب‌پذيري محتواي نانوذره‌اي خود را بواسطه برهم‌کنش‌هاي آب‌گريز – آب‌گريز بين يک ذره و سطح شکاف‌دار، داخل نواحي شکاف‌دار يا آسيب‌ديده ترسيب مي‌کنند. سلنيد کادميوم فلورسانت است و بنابراين اين نانوذره را مي‌توان به آساني با استفاده از يک ميکروسکوپ نوري رديابي کرد.

امريک مي‌گويد: "تحقيق ما مي‌تواند کاربردهاي عملي ويژه‌اي داشته باشد. براي مثال با از بين بردن نياز به روکش‌دهي تمام يک سطح موقعي که فقط بخش کوچکي از آن آسيب ديده است، مي‌تواتد به کم کردن مقدار ماده مورد نياز موقع تعمير يک جسم يا نمونه آسيب‌ديده کمک بسيار کند."

اين محققان جزئيات نتايج کار تحقيقاتي خود را در مجله‌ي Nature Nanotechnology منتشر کرده‌اند.



http://www.nano.ir/news/attach/10752.JPG[تصویر:  10752.jpg]
اے دنیا کے مسافر منزل تیری قبرھیں اے کر رھا ھیں جو تو دو دن کا یہ سفرھیں موت ھیں تیرا ان دیکھا ساتھی آچانگ تجھے نگل لے گا:ای مسافر دنیا خونه ی توقبر است ای که هرکاری میکنی سفر دو روزه هست مرگ رفیق ندیده ی تو است یکهو نفست رو می گیره
  


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