イネ科などの植物では、細胞(さいぼう)の中にガラス質のものがつくられて、植物が枯れた後も土の中に半永久的に残る。顕微鏡でなければ見えない小さなものだが、種類によって異なるきれいな形をしていて、プラント・オパールと呼ばれる。風に揺れる水田のイネの中で小さな宝石が作られているわけである。
現代の技術でガラスを作るためには、千何百度以の高温で熱する必要があり、莫大なエネルギーを消費して二酸化炭素を発生する。一方、植物が土の中の化学成分を蓄積させて、時にはプラント・オパールのような鉱物すら作る仕組みには、省エネ・低環境負荷の新しい材料製造プロセスのヒントが隠されている。
| Query | Error | Affected | Num. rows | Took (ms) | Actions |
|---|---|---|---|---|---|
| SHOW FULL COLUMNS FROM `contents` | 16 | 16 | 2 | maybe slow | |
| SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= 'utf8_general_ci'; | 1 | 1 | 9 | maybe slow | |
| SHOW FULL COLUMNS FROM `users` | 10 | 10 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `groups` | 4 | 4 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `permissions` | 5 | 5 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `groups_permissions` | 3 | 3 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `groups_users` | 3 | 3 | 9 | maybe slow | |
| SHOW FULL COLUMNS FROM `contents_searches` | 6 | 6 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `attachments` | 11 | 11 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `attachments_revs` | 13 | 13 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `contents_related_items` | 5 | 5 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `related_items` | 6 | 6 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `contents_related_items_revs` | 8 | 8 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `contents_tags` | 5 | 5 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `tags` | 7 | 7 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `tag_groups` | 6 | 6 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `contents_tags_revs` | 7 | 7 | 1 | maybe slow | |
| SHOW FULL COLUMNS FROM `contents_revs` | 18 | 18 | 1 | maybe slow | |
| SELECT `Content`.`id`, `Content`.`user_id`, `Content`.`last_edit_user_id`, `Content`.`post_date`, `Content`.`post_date_year`, `Content`.`post_date_month`, `Content`.`post_date_day`, `Content`.`title`, `Content`.`title_en`, `Content`.`content`, `Content`.`plain_content`, `Content`.`page_view`, `Content`.`flag`, `Content`.`mod_count`, `Content`.`created`, `Content`.`modified` FROM `contents` AS `Content` WHERE `id` = 200 LIMIT 1 | 1 | 1 | 0 | ||
| SELECT `Attachment`.`file_name`, `Attachment`.`dir`, `Attachment`.`model`, `Attachment`.`foreign_key` FROM `attachments` AS `Attachment` WHERE `file_name` <> 'default.jpg' AND `Attachment`.`foreign_key` = (200) | 1 | 1 | 0 | ||
| SELECT `ContentsRelatedItem`.`content`, `ContentsRelatedItem`.`related_item_id`, `ContentsRelatedItem`.`content_id` FROM `contents_related_items` AS `ContentsRelatedItem` WHERE `ContentsRelatedItem`.`content_id` = (200) | 10 | 10 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 1 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 2 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 4 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 6 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 7 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 8 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 11 | 1 | 1 | 0 | ||
| SELECT `ContentsTag`.`id`, `ContentsTag`.`tag_group_id`, `ContentsTag`.`mod_count`, `ContentsTag`.`tag_id`, `ContentsTag`.`content_id` FROM `contents_tags` AS `ContentsTag` WHERE `ContentsTag`.`content_id` = (200) | 2 | 2 | 8 | maybe slow | |
| SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 23 | 1 | 1 | 0 | ||
| SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 2 | 1 | 1 | 0 | ||
| SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 90 | 1 | 1 | 0 | ||
| SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 7 | 1 | 1 | 0 | ||
| SELECT `RelatedItem`.`id`, `RelatedItem`.`code`, `RelatedItem`.`name`, `RelatedItem`.`created`, `RelatedItem`.`modified`, `RelatedItem`.`flag` FROM `related_items` AS `RelatedItem` WHERE `code` = 'function' LIMIT 1 | 1 | 1 | 0 | ||
| SELECT `Content`.`id`, `Content`.`title`, `Content`.`title_en` FROM `contents` AS `Content` WHERE id = (NULL) ORDER BY `id` desc | 0 | 0 | 0 |
Peak Memory Use 9.51 MB
| Message | Memory use |
|---|---|
| Component intitailization | 6.79 MB |
| Controller action start | 6.83 MB |
| Controller render start | 6.90 MB |
| View render complete | 7.92 MB |
Total Request Time: 859 (ms)
| Message | Time in ms | Graph |
|---|---|---|
| Core Processing (Derived) | 362.26 | |
| Component initialization and startup | 8.21 | |
| Controller action | 46.40 | |
| Render Controller Action | 64.27 | |
| » Rendering View | 52.25 | |
| » » Rendering APP/views/contents/view.ctp | 32.16 | |
| » » Rendering APP/views/layouts/default.ctp | 18.33 | |
| » » » Rendering APP/views/elements/header.ctp | 1.60 | |
| » » » Rendering APP/views/elements/content_sidebar.ctp | 0.56 | |
| » » » Rendering APP/views/elements/footer.ctp | 0.42 |
