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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Jordbruk som innovationsnätverk : Hur påverkar närhet och distans innovationen?

Sjögren, Henry, Embaye, Elias January 2021 (has links)
As society moves towards being more and more digitalised, so does agriculture as well. Hopefully these digital tools will help us reach environmental goals through optimizing the use of resources in the agricultural sector. However, there are a few barriers to overcome for the digital transition to run smoothly. This thesis investigates a small portion of the agricultural innovation network in Sweden. This is done through multiple interviews and literary research. We can clearly see how this innovation network during the last decades has moved towards becoming more knowledge centered and how the model triple helix now easily can be applied to the network. The network is then analysed using Ron Boschma’s five proximity factors and it becomes clear that concerning the agricultural innovation network, the cognitive and institutional proximity is of great importance for the innovational strength. It also becomes clear that the different proximity factors seldom act alone, but instead build upon each other to increase the negative respectively positive outcomes. Moreover it is shown that regarding the agricultural innovation network in Sweden, it can only benefit from improving the proximity factors, which is different from other types of industries.
2

Proposta de sistema de aquisição e transmissão de dados para suporte à irrigação /

Prado, Artur Bonini do January 2019 (has links)
Orientador: Fernando Braz Tangerino Hernandez / Resumo: A água é um recurso essencial para a agricultura. Sua gestão passa por práticas que definem a quantidade e qualidade disponível para diversos usuários comuns, como indústria e consumo humano. O volume de água utilizado para a irrigação deve passar por um processo de otimização em seu uso, avaliando as variáveis necessárias para a maximização da produtividade e controle dos custos. O monitoramento ambiental e das condições climáticas possibilitam prever o comportamento do ciclo hidrológico e planejar o uso da água na irrigação conforme a necessidade das culturas e o estoque disponível no solo. O adequado monitoramento do armazenamento de água no solo se constitui em uma boa prática na irrigação que garante alta produtividade das lavouras e colabora com o uso consciente da água, além de proporcionar resultados financeiros positivos, tanto no aumento da produtividade, como na economia de energia usada no bombeamento da água, além da preservação ambiental e dos recursos hídricos. A expansão da agricultura irrigada é um importante vetor de crescimento social e econômico, podendo ser a locomotiva para um futuro sustentável de uma região. O objetivo deste trabalho é construir um sistema de aquisição de dados para medição da umidade do solo, disponibilizando uma base de dados histórica, a custos reduzidos, para que o usuário acompanhe a variação dos dados e estime a quantidade de água a ser utilizada na agricultura. / Abstract: Water is an essential resource for agriculture. Its management goes through good practices to determine the available amount for several users, such industry and human consumption. The water content used for irrigation should go through an optimization process, evaluating the necessary variables to maximize productivity and expenses control. The environment monitoring and climate conditions enable to forecast the hydrological period and the irrigation water consumption according to crop needs and available water inventory. The suitable monitoring of soil water content becomes an irrigation good practice which enables crops high productivity and collaborates to conscious water application, apart from affording positive financial yield, in productivity growth as well as in sparing energy on water pumping, besides conservation of the environment and water resources. The expansion of irrigated agriculture is an important vector of social and economic growth, and it can be the locomotive for a sustainable future of a region. The objective of this work is to build a data acquisition system for soil moisture measurement, providing a historical database, at reduced costs, so that the user follows the variation of the data and estimates the amount of water to be used in agriculture. / Mestre

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