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Recent Advances in Computer Science and Communications

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ISSN (Print): 2666-2558
ISSN (Online): 2666-2566

Research Article

Hybrid Dragonfly and Pattern Search Algorithm Applied to Dynamic Economic Dispatch Problem

Author(s): Arun Kumar Sahoo*, Tapas Kumar Panigrahi, Gopal Krishna Nayak and Aurobinda Behera

Volume 15, Issue 3, 2022

Published on: 26 August, 2020

Article ID: e180322185346 Pages: 14

DOI: 10.2174/2666255813999200826161924

Price: $65

Abstract

Background: In this paper, a novel hybridisation of the dragonfly algorithm (DFA) with the pattern search (PS) algorithm is applied to the dynamic economic dispatch (DED) problem. The DED problem is non-convex, non-linear, and non-smooth and considering practical constraints such as the loading effect of the valve point and ramp rate limits. The conventional DFA is stuck in the local optima and converges prematurely.

Introduction: The characteristics of the optimality of the electric power system are dependent on reliability and high economy. Economic dispatch (ED) significantly contributes in deriving the optimal solutions for the operation of a power system. ED aims to generate electric power at the optimum cost among all generating units in order to satisfy the load demand considering all practical and operational constraints. Practical constraints, such as the effect of steam valves, the dynamic behaviour of ramp rate limits, losses due to transmission of power, and prohibited operating zones, convert the linear and convex problem to a non-convex and non-linear problem.

Method: Planning and scheduling of output electric power from committed generating units to fulfill the load demand for a scheduled period are termed as DED. The practical generators of thermal power experience the effect of steam valve, real-time ramp rate limit, and technical constraints. DED satisfies all practical, technical, and operational constraints. The DFA was a newly proposed method taking the inspiration of the behaviour of dragonflies for hunting and migrating towards food. The random movement of dragonfly clusters depicts their static characteristics for exploring in the local search space for exploitation competencies, whereas the dynamic behaviour of swarms is used for exploring the global search space by moving in a single direction for a long distance.

Result: The efficiency of the proposed method is validated for six well-known benchmark functions. The hybrid technique is compared with the conventional DFA. The proposed hybrid technique combining of the DFA and PS algorithm is also applied for four different test systems with diverse generating units. The proposed technique shows better efficiency for the optimum cost as compared to other recently applied techniques.

Conclusion: To overcome difficulties, a PS method is hybridised with the original DFA. The application of the proposed technique improves the capability of search and convergence property The validation of the proposed method by applying to the DED problem shows its effectiveness for generation scheduling and estimating.

Keywords: Dynamic Economic Dispatch (DED), Dragonfly Algorithm (DFA), Pattern Search Algorithm (PS), Hybrid Dragon fly algorithm with pattern search algorithm (hDFA-PS), Ramprate limits, Economic Dispatch (ED)

Graphical Abstract

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      • 6: 316202228
      • 7: 316202228
      • 8: 316202228
      • 9: 316202228
      • 10: 316202228
      • 11: 316202228
      • 12: 316202228
      • 13: 316202228
      • 14: 316202228
      • 15: 316202228
      Backtrace
      • 14. app/Models/UserAccess/UserAccess.php:784
      • 15. middleware::check_user_access:114
      • 16. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 18. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
    • SELECT at.type_name, p.copyright, p.publisher_location,m.month,y.year, a.publish_on, a.nid article_nid,a.article_id, a.pmid, a.issue_id, a.title, a.abstract,a.podcast,a.altmetric_score,a.altmetric_url,a.kudos_url, a.page_count, a.first_page, a.elocator, a.last_page, i.publication_date, a.file_name, a.file_path, a.doi, a.is_epub,a.epub_type, a.volume_id, a.is_uploaded, a.editor_choice, a.is_epub, j.image_file_name, a.article_no, a.art_type AS article_type, a.supplementary_filename,a.html_filename,a.prc_filename,a.epub_filename, a.graph_abs_lg_filename, a.graph_abs_sm_filename, a.oa_image_lg_filename, a.oa_image_sm_filename, j.journal_banner,a.animated_abstract,a.erratum_in,a.erratum_for, (CASE WHEN a.issue_id =0 THEN j.epub_price ELSE j.price END) AS sell_price, j.epub_price, j.nid AS jour_nid, j.title AS journal_title, j.issn, j.eissn,j.journal_id, j.subtitle AS jour_subtitle, v.volume_id,v.volume_name AS volume, v.year_id, i.title AS issue, i.month_id ,i.type issue_type, j.subtitle,j.formerly_title, ac.subtitle AS epub_title,a.crossmark_enabled,a.text_mining_urls,a.license_urls,a.created, a.receivedate, a.revisedate, a.acceptdate,js.js_title FROM article a LEFT JOIN article_section ac ON a.is_epub = ac.art_sec_id LEFT JOIN journal_section js ON a.js_id = js.js_id LEFT JOIN article_type at ON a.art_type = at.art_type_id LEFT JOIN issue i ON a.issue_id = i.issue_id LEFT JOIN month m ON m.id = i.month_id LEFT JOIN volume v ON v.volume_id = a.volume_id INNER JOIN year y ON y.id = v.year_id INNER JOIN journal j ON j.journal_id = a.journal_id INNER JOIN publisher p ON p.publisher_id = j.publisher_id WHERE a.article_id=109504
      1.13msalphaeurekaselec_live_10_06_2022Article.php#408
      Backtrace
      • 11. app/Models/Article.php:408
      • 12. app/Http/Controllers/ArticleController.php:2515
      • 13. app/Http/Controllers/ArticleController.php:2035
      • 14. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 15. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select * from `journal` where `journal_id` = 179 limit 1
      580μsalphaeurekaselec_live_10_06_2022Journal.php#64
      Bindings
      • 0: 179
      Backtrace
      • 14. app/Models/Journal.php:64
      • 15. app/Http/Controllers/ArticleController.php:2516
      • 16. app/Http/Controllers/ArticleController.php:2035
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select count(*) as aggregate from (select j.nid as journal_nid,j.flyer_link,j.title ,j.issn,j.eissn,j.keyword, j.journal_id as journal_id, j.subtitle, j.image_file_name,j.description,j.journal_insight_url,j.doi from `subject_journal` as `sj` inner join `journal` as `j` on `j`.`journal_id` = `sj`.`journal_id` where j.journal_status=1 and subject_id IN (SELECT subject_id FROM subject_journal WHERE journal_id=179) and sj.journal_id!=179 group by `j`.`nid`) as `aggregate_table`
      670μsalphaeurekaselec_live_10_06_2022Subject.php#200
      Backtrace
      • 16. app/Models/Subject.php:200
      • 17. app/Http/Controllers/ArticleController.php:2517
      • 18. app/Http/Controllers/ArticleController.php:2035
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 20. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select j.nid as journal_nid,j.flyer_link,j.title ,j.issn,j.eissn,j.keyword, j.journal_id as journal_id, j.subtitle, j.image_file_name,j.description,j.journal_insight_url,j.doi from `subject_journal` as `sj` inner join `journal` as `j` on `j`.`journal_id` = `sj`.`journal_id` where j.journal_status=1 and subject_id IN (SELECT subject_id FROM subject_journal WHERE journal_id=179) and sj.journal_id!=179 group by `j`.`nid` order by `j`.`journal_id` asc limit 10 offset 0
      530μsalphaeurekaselec_live_10_06_2022Subject.php#200
      Backtrace
      • 14. app/Models/Subject.php:200
      • 15. app/Http/Controllers/ArticleController.php:2517
      • 16. app/Http/Controllers/ArticleController.php:2035
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select count(*) as aggregate from (select v.nid as volume_id,e.nid,e.title,v.issn,v.eissn,v.isbn,v.eisbn,e.ebook_id, v.image_file_name,v.file_path,v.flyer_link,v.ebook_volume_id, v.volume_name,v.doi,v.year_id,v.introduction from `subject_ebook` as `se` inner join `ebook` as `e` on `e`.`ebook_id` = `se`.`ebook_id` inner join `ebook_volume` as `v` on `v`.`ebook_id` = `se`.`ebook_id` inner join `year` as `y` on `y`.`id` = `v`.`year_id` where subject_id IN (SELECT subject_id FROM subject_journal WHERE journal_id=179) and v.ebook_status='1' and y.year > 2020 group by `v`.`nid`) as `aggregate_table`
      1.64msalphaeurekaselec_live_10_06_2022Subject.php#220
      Backtrace
      • 16. app/Models/Subject.php:220
      • 17. app/Http/Controllers/ArticleController.php:2518
      • 18. app/Http/Controllers/ArticleController.php:2035
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 20. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select v.nid as volume_id,e.nid,e.title,v.issn,v.eissn,v.isbn,v.eisbn,e.ebook_id, v.image_file_name,v.file_path,v.flyer_link,v.ebook_volume_id, v.volume_name,v.doi,v.year_id,v.introduction from `subject_ebook` as `se` inner join `ebook` as `e` on `e`.`ebook_id` = `se`.`ebook_id` inner join `ebook_volume` as `v` on `v`.`ebook_id` = `se`.`ebook_id` inner join `year` as `y` on `y`.`id` = `v`.`year_id` where subject_id IN (SELECT subject_id FROM subject_journal WHERE journal_id=179) and v.ebook_status='1' and y.year > 2020 group by `v`.`nid` order by `v`.`ebook_volume_id` desc limit 10 offset 0
      1.38msalphaeurekaselec_live_10_06_2022Subject.php#220
      Backtrace
      • 14. app/Models/Subject.php:220
      • 15. app/Http/Controllers/ArticleController.php:2518
      • 16. app/Http/Controllers/ArticleController.php:2035
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select * from `keywords` where `article_id` = '109504'
      2.57msalphaeurekaselec_live_10_06_2022Keywords.php#43
      Bindings
      • 0: 109504
      Backtrace
      • 13. app/Models/Keywords.php:43
      • 14. app/Http/Controllers/ArticleController.php:2519
      • 15. app/Http/Controllers/ArticleController.php:2035
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select * from `article_citation` where `article_id` = '109504'
      2.65msalphaeurekaselec_live_10_06_2022Article.php#1570
      Bindings
      • 0: 109504
      Backtrace
      • 13. app/Models/Article.php:1570
      • 14. app/Http/Controllers/ArticleController.php:2520
      • 15. app/Http/Controllers/ArticleController.php:2035
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select CONCAT_WS(' ',au.first_name, ' ', ifnull(au.initials,''), ' ', au.last_name) as authors, CONCAT(au.last_name, IFNULL(CONCAT(' ', au.initials), ''), ' ', au.first_name) AS authorsRIS, CONCAT_WS(' ',au.last_name, ' ', ifnull(au.initials,''), ' ', au.first_name) as authorsCiteAs, CONCAT_WS(' ',au.first_name, IFNULL(CONCAT(' ', au.initials), ''), IFNULL(CONCAT(' ', au.last_name), '')) as authorsmodal , `au`.*, `af`.`ror_id`, `af`.`institution`, `af`.`department`, `af`.`country`, `af`.`city`, `af`.`address`, (GROUP_CONCAT(TRIM(BOTH ', ' FROM CONCAT(ifnull(concat(af.institution,','),''), ifnull(concat(af.department,','),''), ifnull(concat(af.address,','),''), ifnull(concat(af.city,','),''), ifnull(concat(af.country,','),''), ifnull(concat(af.postal_code,','),''), ifnull(concat(af.phone,','),''), ifnull(concat(af.fax,','),''))) SEPARATOR '|')) as `author_affiliation`, (GROUP_CONCAT(TRIM(BOTH ', ' FROM CONCAT(ifnull(concat(af.web_view,','),''))) SEPARATOR '|')) as `web_view` from `author` as `au` left join `author_affiliation` as `af` on `au`.`author_id` = `af`.`author_id` where `au`.`article_id` = '109504' group by `au`.`author_id` order by `au`.`article_id` asc, `au`.`sequence` asc
      1.46msalphaeurekaselec_live_10_06_2022Author.php#86
      Bindings
      • 0: 109504
      Backtrace
      • 13. app/Models/Author.php:86
      • 14. app/Http/Controllers/ArticleController.php:2533
      • 15. app/Http/Controllers/ArticleController.php:2035
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select `bo`.* from `bundle_offer` as `bo` where `bo`.`bundle_status` = 'A' order by `bo`.`bundle_id` desc
      270μsalphaeurekaselec_live_10_06_2022BundleOffer.php#57
      Bindings
      • 0: A
      Backtrace
      • 13. app/Models/BundleOffer.php:57
      • 14. app/Http/Controllers/ArticleController.php:2535
      • 15. app/Http/Controllers/ArticleController.php:2035
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
    • select `subtitle` from `journal` where `continues_publication_journal` = 1
      470μsalphaeurekaselec_live_10_06_2022Article.php#1960
      Bindings
      • 0: 1
      Backtrace
      • 13. app/Models/Article.php:1960
      • 14. app/Http/Controllers/ArticleController.php:2062
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • Select j.subtitle, v.volume_id as volume_id,v.year_id,y.year as year,v.volume_name, v.total_no_of_issues, i.issue_id as issue_id,i.title as issue, i.publication_date as issue_pub_date from journal j join volume v on j.journal_id = v.journal_id join issue i on v.volume_id = i.volume_id join article a on a.issue_id = i.issue_id join year y on v.year_id = y.id where j.journal_id = 179 and i.is_uploaded = 1 order by v.volume_name+0 desc, i.title+0 desc limit 1
      28.35msalphaeurekaselec_live_10_06_2022Issue.php#298
      Backtrace
      • 11. app/Models/Issue.php:298
      • 12. app/Http/Controllers/ArticleController.php:2068
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select a.nid,a.publish_on, a.pmid,a.article_id,a.doi,j.journal_id,j.subtitle,v.volume_name,a.volume_id as volume_id, a.issue_id,a.title,first_page, last_page, page_count,abstract,ifnull(is_abstract,"y"),asec.title as article_section,at.type_name as article_type_name, a.article_id as ArticleID ,is_epub,epub_price,epub_type,a.created, y.year from `article` as `a` left join `article_section` as `asec` on `asec`.`art_sec_id` = `a`.`is_epub` left join `article_type` as `at` on `at`.`art_type_id` = `a`.`art_type` left join `journal` as `j` on `j`.`journal_id` = `a`.`journal_id` inner join `volume` as `v` on `a`.`volume_id` = `v`.`volume_id` inner join `year` as `y` on `v`.`year_id` = `y`.`id` where a.article_status != "W" and a.is_epub = 1 and a.journal_id = 179 and a.is_uploaded = 1 group by `a`.`article_id` order by `a`.`publish_on` desc
      10.97msalphaeurekaselec_live_10_06_2022Article.php#528
      Backtrace
      • 13. app/Models/Article.php:528
      • 14. app/Http/Controllers/ArticleController.php:2070
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select a.nid,a.publish_on, a.pmid,a.article_id,a.doi,j.journal_id,j.subtitle,v.volume_name,a.volume_id as volume_id, a.issue_id,a.title,first_page, last_page, page_count,abstract,ifnull(is_abstract,"y"),asec.title as article_section,at.type_name as article_type_name, a.article_id as ArticleID ,is_epub,epub_price,epub_type,a.created, y.year from `article` as `a` left join `article_section` as `asec` on `asec`.`art_sec_id` = `a`.`is_epub` left join `article_type` as `at` on `at`.`art_type_id` = `a`.`art_type` left join `journal` as `j` on `j`.`journal_id` = `a`.`journal_id` inner join `volume` as `v` on `a`.`volume_id` = `v`.`volume_id` inner join `year` as `y` on `v`.`year_id` = `y`.`id` where a.article_status != "W" and a.is_epub = 4 and a.journal_id = 179 and a.is_uploaded = 1 group by `a`.`article_id` order by `a`.`publish_on` desc
      5.69msalphaeurekaselec_live_10_06_2022Article.php#528
      Backtrace
      • 13. app/Models/Article.php:528
      • 14. app/Http/Controllers/ArticleController.php:2071
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select pdf, html, epub, prc from `article_metrics` where `article_id` = 109504 limit 1
      320μsalphaeurekaselec_live_10_06_2022Article.php#744
      Bindings
      • 0: 109504
      Backtrace
      • 14. app/Models/Article.php:744
      • 15. app/Http/Controllers/ArticleController.php:2091
      • 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
    • select * from content_by_diseases where content_id = 109504 and content_type = 'article' order by status desc limit 1
      370μsalphaeurekaselec_live_10_06_2022Article.php#751
      Backtrace
      • 11. app/Models/Article.php:751
      • 12. app/Http/Controllers/ArticleController.php:2094
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select * from `node_meta` where `nid` = 185346 limit 1
      290μsalphaeurekaselec_live_10_06_2022Meta.php#30
      Bindings
      • 0: 185346
      Backtrace
      • 14. app/Models/Meta.php:30
      • 15. app/Http/Controllers/ArticleController.php:2101
      • 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
    • select `bo`.* from `bundle_offer` as `bo` where `bo`.`bundle_status` = 'A' order by `bo`.`bundle_id` desc
      280μsalphaeurekaselec_live_10_06_2022BundleOffer.php#57
      Bindings
      • 0: A
      Backtrace
      • 13. app/Models/BundleOffer.php:57
      • 14. app/Http/Controllers/ArticleController.php:2108
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select * from `tbl_ht_submission` as `h` where `h`.`subtitle` = 'RACSC' and (h.proposal_closing_date = 0 OR TO_DAYS(FROM_UNIXTIME(h.proposal_closing_date)) >= TO_DAYS(NOW())) order by `h`.`manuscript` asc
      930μsalphaeurekaselec_live_10_06_2022Article.php#2025
      Bindings
      • 0: RACSC
      Backtrace
      • 13. app/Models/Article.php:2025
      • 14. app/Http/Controllers/ArticleController.php:2112
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from journal_access where content_type_id = '109504' and content_type = 'a' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      410μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ArticleController.php:2186
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from journal_access where content_type_id = '11229' and content_type = 'i' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      360μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ArticleController.php:2207
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from journal_access where content_type_id = '3174' and content_type = 'v' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      320μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ArticleController.php:2231
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"volume" as access_level,"" as issue_id,"" as article_id from `user_access_journal_volume_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 3174) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"volume" as access_level,"" as issue_id,"" as article_id from `user_access_journal_volume_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 3174) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"volume" as access_level,"" as issue_id,"" as article_id from `user_access_journal_volume_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 3174)
      14.59msalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ArticleController.php:2272
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"issue" as access_level,j.issue_id,"" as article_id from `user_access_issue_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.issue_id = 11229) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"issue" as access_level,j.issue_id,"" as article_id from `user_access_issue_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.issue_id = 11229) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"issue" as access_level,j.issue_id,"" as article_id from `user_access_issue_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.issue_id = 11229)
      720μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ArticleController.php:2297
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"article" as access_level, j.issue_id, j.article_id from `user_access_article_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.article_id = 109504) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"article" as access_level, j.issue_id, j.article_id from `user_access_article_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.article_id = 109504) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"article" as access_level, j.issue_id, j.article_id from `user_access_article_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316202228 and j.to_ip >=316202228 )) and ((j.from_date <= 1740458726 and j.to_date >= 1740458726 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.article_id = 109504)
      680μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ArticleController.php:2329
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select * from `article` where `first_page` < '334' and is_uploaded = 1 and issue_id = 11229 order by cast(first_page as SIGNED) desc limit 1
      620μsalphaeurekaselec_live_10_06_2022Article.php#1819
      Bindings
      • 0: 334
      Backtrace
      • 14. app/Models/Article.php:1819
      • 15. app/Http/Controllers/ArticleController.php:2470
      • 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
    • select * from `article` where `last_page` > '347' and is_uploaded = 1 and issue_id = 11229 order by cast(first_page as SIGNED) asc limit 1
      580μsalphaeurekaselec_live_10_06_2022Article.php#1831
      Bindings
      • 0: 347
      Backtrace
      • 14. app/Models/Article.php:1831
      • 15. app/Http/Controllers/ArticleController.php:2472
      • 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
    • select `language_id` from `multilanguage` where `short_code` = 'en'
      250μsalphaeurekaselec_live_10_06_2022ArticleController.php#2497
      Bindings
      • 0: en
      Backtrace
      • 14. app/Http/Controllers/ArticleController.php:2497
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select `source_lang_label`, `target_lang_label` from `multilanguage_labels` where `target_lang_id` = 1
      240μsalphaeurekaselec_live_10_06_2022MultiLanguage.php#23
      Bindings
      • 0: 1
      Backtrace
      • 13. app/Models/MultiLanguage.php:23
      • 14. app/Http/Controllers/ArticleController.php:2498
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select `id` from `multilanguage_article` where `article_id` = 109504 limit 1
      2.44msalphaeurekaselec_live_10_06_2022ArticleController.php#2506
      Bindings
      • 0: 109504
      Backtrace
      • 16. app/Http/Controllers/ArticleController.php:2506
      • 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:206
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` inner join `journal` as `j` on `j`.`journal_id` = `bd`.`content_id` where `b`.`banner_journal` = 1 and `bd`.`content_type` = 'J' and `bd`.`content_id` = 179 and `b`.`banner_from_date` <= 1740458726 and `b`.`banner_to_date` >= 1740458726 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.17msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: J
      • 2: 179
      • 3: 1740458726
      • 4: 1740458726
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` inner join `journal` as `j` on `j`.`journal_id` = `bd`.`content_id` where `b`.`banner_journal` = 1 and `bd`.`content_type` = 'J' and `bd`.`content_id` = 179 and `b`.`banner_from_date` <= 1740458726 and `b`.`banner_to_date` >= 1740458726 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.21msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: J
      • 2: 179
      • 3: 1740458726
      • 4: 1740458726
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='e6ed77fdc7a7d0712e8aff7913ec3494'
      220μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\MultiLanguage
    1MultiLanguage.php#?
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        uc_cart_id
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        PHPDEBUGBAR_STACK_DATA
        []
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        status_text
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        request_query
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        request_request
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        request_headers
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        request_cookies
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        array:1 [ "wayfindertarget" => null ]
        response_headers
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        ClearShow all
        Date ↕MethodURLData
        #12025-02-25 04:45:26GET/article/109504414361