https://socictopen.socict.org/files/original/b0971c99789171a9dc47db6a176c22e1.pdf 64614808827858b53a9fc574f28b0aca Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle Creator An entity primarily responsible for making the resource Haroldo Carlos Fernandes, Domingos Sárvio Magalhães Valente, Francisco de Assis de Carvalho Pinto, Fábio Lúcio Santos, Christina Maria de Freitas Grupioni Description An account of the resource Macaw (Acrocomia aculeata) is a product of Brazilian socio-biodiversity and is an excellent source of oil for the cosmetics, food and fuel industry. One of the technical bottlenecks of macaw fruit production is the manual harvesting with rudimentary tools and the extractive system, which has a very large dependence on labor. The objective of this work was to develop the informational and conceptual design of a semi-mechanized harvesting system that can be used in adverse conditions of relief, also directed to the needs of family farmers. In this work the concept of a low cost macaw harvester is proposed, which works by the principle of mechanical vibrations, and is able to work efficiently in planted and natural plantations. From an adaptation of the Pahl and Beitz method for the development of machine designs, and the use of the evolution prototyping method, integration prototypes were constructed, which underwent a preliminary field test. Some modifications were made in portable coffee breakers, which constituted changes in the vibration signal generation system that were transmitted to macaw fruits at the head / plant interface. Only one of the built prototypes was considered effective and suitable for subsequent performance (product under patent registration). For the detailed design, CAD (Computer Aided Design) techniques were employed. Later, it was possible to observe the validation of efficiency of the macaw fruit harvest by the principle of mechanical vibrations. Under field conditions, field trials demonstrated that the average harvest efficiency for the proposed model with vibrating rods was 97.4% and the average harvesting capacity was 566.91 kg h-1. Date A point or period of time associated with an event in the lifecycle of the resource 2018 Subject The topic of the resource Agricultura Familiar, Projeto de Máquinas, colheita, mecanização agrícola Identifier An unambiguous reference to the resource within a given context 10.5433/1679-0359.2018v39n2p497 Source A related resource from which the described resource is derived Semina: Ciências Agrárias Publisher An entity responsible for making the resource available Universidade Estadual de Londrina Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Agriculture (General) Relation A related resource <a href="http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/29259" target="_blank" rel="noreferrer noopener">http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/29259</a>