{"id":1061,"date":"2024-12-12T08:00:00","date_gmt":"2024-12-12T07:00:00","guid":{"rendered":"https:\/\/control-advent.com\/?p=1061"},"modified":"2025-11-28T19:04:54","modified_gmt":"2025-11-28T18:04:54","slug":"12-de-frageis-a-fantasticos-otimizando-a-criacao-de-brinquedos","status":"publish","type":"post","link":"https:\/\/control-advent.com\/?p=1061","title":{"rendered":"12 &#8211; De Fr\u00e1geis a Fant\u00e1sticos: Otimizando a Cria\u00e7\u00e3o de Brinquedos"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong><strong>Autores desta quest\u00e3o:<\/strong><\/strong>&nbsp;Damiano Rotondo,&nbsp;<em>Institutt for data- og elektroteknologi (IDE),&nbsp;<\/em>Universitetet i Stavanger, Noruega &amp; Helem S\u00e1nchez, Hafrsfjord Skole, Noruega<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na movimentada oficina do Pai Natal, os duendes trabalham a todo o vapor no fabrico de brinquedos destinados a alegrar as crian\u00e7as do mundo inteiro. O seu segredo para criar brinquedos de alta qualidade deve-se a tr\u00eas bot\u00f5es das m\u00e1quinas m\u00e1gicas, onde cada um controla um fator crucial: (i) a fragilidade, ou qu\u00e3o facilmente um brinquedo se parte; (ii) a falta de atratividade, ou qu\u00e3o pouco apelativo um brinquedo \u00e9; (iii) o consumo de energia, ou a quantidade de eletricidade consumida pela m\u00e1quina. Qual \u00e9 ent\u00e3o o desafio? Vejamos que obter brinquedos mais bonitos e resistentes faz disparar o consumo de energia. Este \u00e9 um delicado equil\u00edbrio e os duendes sabem que n\u00e3o podem anular simultaneamente os tr\u00eas fatores!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e1 muito muito tempo, um brilhante matem\u00e1tico chamado Jacopo Riccati visitou a oficina do Pai Natal, deixando um presente que a revolucionaria para sempre \u2014 uma f\u00f3rmula m\u00e1gica. Esta equa\u00e7\u00e3o encantada, carinhosamente apelidada de Lovely Quality Reinforcement (ou LQR na linguagem dos duendes), tornou-se o segredo do aperfei\u00e7oamento das m\u00e1quinas da oficina. Sempre que os duendes ajustam os bot\u00f5es, modificam os n\u00fameros positivos <em>a, b, c<\/em> na f\u00f3rmula:<br> <br> <em>J = a (fragilidade)<sup>2<\/sup> + b (falta de atratividade)<sup>2<\/sup> + c (consumo de energia)<sup>2<\/sup><\/em><br> <br>A f\u00f3rmula LQR funciona com um toque de magia, fazendo com que as m\u00e1quinas da oficina ajustem automaticamente as alavancas e engrenagens de forma ideal, garantindo os brinquedos mais incr\u00edveis com o menor consumo de energia, e obtendo o menor valor poss\u00edvel de <em>J<\/em>. \u00c9 mesmo m\u00e1gico, n\u00e3o \u00e9?<br><br>Por\u00e9m, este ano, os custos de energia est\u00e3o mais altos do que nunca \u2026 Com as m\u00e1quinas m\u00e1gicas a trabalhar horas extra e cada watt a correr, o Pai Natal sabe que tem de agir rapidamente \u2014 Se n\u00e3o controlar devidamente o uso da energia, poder\u00e1 comprometer n\u00e3o s\u00f3 a entrega dos presentes como tamb\u00e9m o futuro do t\u00e3o adorado Calend\u00e1rio do Advento de Controlo.<br><br>Como pode o Pai Natal ajustar a f\u00f3rmula m\u00e1gica de Riccati de forma a reduzir ao m\u00e1ximo o consumo de energia?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024.jpg\" alt=\"\" class=\"wp-image-425\" srcset=\"https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024.jpg 1024w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-300x300.jpg 300w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-150x150.jpg 150w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-768x768.jpg 768w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-640x640.jpg 640w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-24x24.jpg 24w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-36x36.jpg 36w, https:\/\/control-advent.com\/wp-content\/uploads\/2024\/11\/12-Dec-2024-48x48.jpg 48w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">a. \ud83d\udd27\ud83d\udc94\ud83d\udcc8 Deve aumentar o par\u00e2metro da fragilidade <em>a<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b. \ud83c\udfa8\ud83d\udc40\ud83d\udcc8 Deve aumentar o par\u00e2metro da falta de atratividade <em>b<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c. \u26a1\ud83d\udd0c\ud83d\udcc8 Deve aumentar o par\u00e2metro do consumo de energia <em>c<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d. \u26a1\ud83d\udd0b\ud83d\udcc9 Deve diminuir o par\u00e2metro do consumo de energia <em>c<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">e. \ud83d\udcc8\ud83c\udf81\ud83c\udf1f Deve aumentar todos os par\u00e2metros (<em>a<\/em>, <em>b<\/em>, e <em>c<\/em>) ao mesmo tempo<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">f. \ud83e\udd8c\u2728\u2699\ufe0f Deve salpicar os bot\u00f5es com o p\u00f3 m\u00e1gico das renas<\/p>\n\n\n<div class=\"yop-poll-container\" data-yop-poll-id=\"17\"><script type=\"application\/json\" 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