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قناة منصة معارف علي التليجرام الاقوي عربيا .. اشترك الآن

شرح دورة اعداد مهندس كهرباء موقع - الدرس الخامس عشر نظام التأريض الجزء الاول (Earthing System) | [معتمد]

دورة هندسة كهربائية واعداد مهندس كهرباء

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قائمة الدروس | 81 درس
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هندسة كهربائية (بالإنجليزية: Electrical Engineering) هي تخصص يهتم بدراسة وتطبيقات علوم الكهرباء والإلكترونيات والمجالات الكهرومغناطيسية. أصبح هذا المجال معروفاً في أواخر القرن التاسع عشر وذلك بعد انتشار البرقية ومحطات إمداد الطاقة. والآن يغطي هذا المجال عدداً من المواضيع الفرعية والتي تتضمن الطاقة والإلكترونيات ونظم التحكم الآلي ومعالجة الإشارات والاتصالات اللاسلكية.
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Request history8.1.2PHP Version312msRequest Duration4MBMemory UsageGET lesson/{lesson_id}Route
    • Booting (243ms)time
    • Application (68.82ms)time
    • 1 x Booting (77.96%)
      243ms
      1 x Application (22.04%)
      68.82ms
      31 templates were rendered
      • courses.lessonlesson.blade.php#?blade
      • ads.lesson_top_fixed_boxlesson_top_fixed_box.blade.php#?blade
      • ads.lesson_after_buttonlesson_after_button.blade.php#?blade
      • inc.share_boxshare_box.blade.php#?blade
      • pages.telegram_boxtelegram_box.blade.php#?blade
      • inc.review_formreview_form.blade.php#?blade
      • ajax.review_userreview_user.blade.php#?blade
      • ads.lesson_bottomlesson_bottom.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.layouts.mainmain.blade.php#?blade
      • beta.layouts.partials.notifications_modalnotifications_modal.blade.php#?blade
      • beta.layouts.partials.navbarnavbar.blade.php#?blade
      • beta.layouts.partials.menumenu.blade.php#?blade
      • beta.layouts.partials.student-menustudent-menu.blade.php#?blade
      • beta.layouts.partials.search-input-desktopsearch-input-desktop.blade.php#?blade
      • student.login_Adminlogin_Admin.blade.php#?blade
      • beta.layouts.partials.search-modalsearch-modal.blade.php#?blade
      • beta.layouts.partials.search-input-mobilesearch-input-mobile.blade.php#?blade
      • beta.layouts.partials.mobile-navbarmobile-navbar.blade.php#?blade
      • beta.layouts.partials.mobile-sidebarmobile-sidebar.blade.php#?blade
      • beta.layouts.partials.bottom_navigation_barbottom_navigation_bar.blade.php#?blade
      • student.partials.list_modallist_modal.blade.php#?blade
      • inc.messagesmessages.blade.php#?blade
      • beta.layouts.partials.footerfooter.blade.php#?blade
      uri
      GET lesson/{lesson_id}
      middleware
      web, search_keywords
      controller
      App\Http\Controllers\courseCerController@lessonPage
      namespace
      App\Http\Controllers
      prefix
      where
      file
      app/Http/Controllers/courseCerController.php:227-322
      11 statements were executed3.36ms
      • select * from `links_maps` where `from_url` = 'https://new.m3aarf.com/lesson/4383' limit 1
        270μsstagingLinkMap.php#20
        Bindings
        • 0: https://new.m3aarf.com/lesson/4383
        Backtrace
        • 16. middleware::link_map:20
        • 17. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
        • 18. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
        • 19. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
        • 20. app/Http/Middleware/LoginUsersFromApp.php:30
      • select `id`, `title`, `course_id`, `link`, `youtube_descr`, `image`, `is_work` from `lessons` where `id` = '4383' and `lessons`.`deleted_at` is null limit 1
        230μsstagingcourseCerController.php#230
        Bindings
        • 0: 4383
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:230
        • 17. vendor/laravel/framework/src/Illuminate/Cache/Repository.php:396
        • 18. vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php:429
        • 20. app/Http/Controllers/courseCerController.php:231
        • 21. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • select count(*) as aggregate from `lessons` where `course_id` = 114 and `lessons`.`deleted_at` is null
        360μsstagingcourseCerController.php#241
        Bindings
        • 0: 114
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:241
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `title`, `id`, `link`, `image` from `lessons` where `course_id` = 114 and `lessons`.`deleted_at` is null limit 60 offset 0
        280μsstagingcourseCerController.php#241
        Bindings
        • 0: 114
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:241
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `course` where `id` = 114 and `course`.`deleted_at` is null limit 1
        240μsstagingcourseCerController.php#243
        Bindings
        • 0: 114
        Backtrace
        • 17. app/Http/Controllers/courseCerController.php:243
        • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 19. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 21. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `course`.*, (select count(*) from `lessons` where `course`.`id` = `lessons`.`course_id` and `lessons`.`deleted_at` is null) as `lessons_count` from `course` where `cat_id` = 14 and `is_certified` = 1 and `course`.`deleted_at` is null limit 8
        850μsstagingcourseCerController.php#245
        Bindings
        • 0: 14
        • 1: 1
        Backtrace
        • 15. app/Http/Controllers/courseCerController.php:245
        • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `id`, `title`, `slug`, `cer_title` from `courses` where `id` = 14 and `courses`.`deleted_at` is null limit 1
        190μsstagingcourseCerController.php#247
        Bindings
        • 0: 14
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:247
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `community` where `course_id` = 114 and `community`.`deleted_at` is null limit 1
        200μsstagingcourseCerController.php#248
        Bindings
        • 0: 114
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:248
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select max(`id`) as aggregate from `lessons` where `id` < '4383' and `course_id` = 114 and `lessons`.`deleted_at` is null
        270μsstagingcourseCerController.php#299
        Bindings
        • 0: 4383
        • 1: 114
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:299
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select min(`id`) as aggregate from `lessons` where `id` > '4383' and `course_id` = 114 and `lessons`.`deleted_at` is null
        290μsstagingcourseCerController.php#300
        Bindings
        • 0: 4383
        • 1: 114
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:300
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `course_reviews` where `course_id` = 114 limit 1
        180μsstaginghelper.php#420
        Bindings
        • 0: 114
        Backtrace
        • 16. app/helpers/helper.php:420
        • 18. vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php:429
        • 20. app/helpers/helper.php:421
        • 23. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
        • 24. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      App\lessons
      61lessons.php#?
      App\course
      9course.php#?
      App\courses
      1courses.php#?
      App\Community
      1Community.php#?
          _token
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          path_info
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          status_code
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          status_text
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          format
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          content_type
          text/html; charset=UTF-8
          request_query
          []
          
          request_request
          []
          
          request_headers
          0 of 0
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          ClearShow all
          Date ↕MethodURLData
          #12025-04-23 00:17:41GET/lesson/4383311172